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The information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are part of an effective registration statement filed with the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell nor do they seek an offer to buy these securities in any jurisdiction where the offer or sale is not permitted.
 
Filed pursuant to Rule 424(b)(2)
Registration No. 333-161809
Subject to completion, dated December 7, 2010
 
Preliminary prospectus supplement
(To prospectus dated September 9, 2009)
 
Concho Resources Inc.
 
2,300,000 Shares
 
Common Stock
 
We are offering 2,300,000 shares of our common stock.
 
Our common stock is listed on the New York Stock Exchange under the symbol “CXO.” On December 6, 2010, the last sale price of the shares as reported on the New York Stock Exchange was $87.01 per share.
 
Investing in our common stock involves risk.  See “Risk Factors” beginning on page S-10 of this prospectus supplement.
 
                 
    Per Share     Total  
 
Public offering price
  $                $             
Underwriting discount
  $       $    
Proceeds, before expenses, to us
  $       $  
 
The underwriters also have the option to purchase up to an additional 345,000 shares from us, at the public offering price, less the underwriting discount, within 30 days from the date of this prospectus supplement.
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus supplement or the accompanying prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
The shares will be ready for delivery on or about December   , 2010.
 
 
 
 
Joint Book-Running Managers
 
Goldman, Sachs & Co. Barclays Capital
 
J.P. Morgan Raymond James
 
December   , 2010


 

 
TABLE OF CONTENTS
 
Prospectus Supplement
 
         
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    S-iii  
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    S-13  
    S-14  
    S-14  
    S-15  
    S-19  
    S-24  
    S-25  
    S-25  
 
Prospectus
 
         
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ABOUT THIS PROSPECTUS SUPPLEMENT
 
This document is in two parts. The first part is the prospectus supplement and the documents incorporated by reference herein, which describes the specific terms of this offering of our common stock. The second part is the accompanying prospectus, which gives more general information, some of which may not apply to our common stock or this offering. If the information relating to the offering varies between the prospectus supplement and the accompanying prospectus, you should rely on the information in this prospectus supplement.
 
You should rely only on the information contained in or incorporated by reference into this prospectus supplement, the accompanying prospectus and any related free writing prospectus. We have not authorized any dealer, salesman or other person to provide you with additional or different information. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus supplement and the accompanying prospectus are not an offer to sell or the solicitation of an offer to buy any securities other than the securities to which they relate and are not an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make an offer or solicitation in that jurisdiction. You should not assume that the information contained in this prospectus supplement is accurate as of any date other than the date on the front cover of this prospectus supplement, or that the information contained in any document incorporated by reference is accurate as of any date other than the date of the document incorporated by reference, regardless of the time of delivery of this prospectus supplement or any sale of a security.
 
Unless otherwise indicated or the context otherwise requires, all references in this prospectus supplement to “we,” “our,” “us,” “the Company” or “Concho” are to Concho Resources Inc., a Delaware corporation, and its subsidiaries.
 
WHERE YOU CAN FIND MORE INFORMATION
 
We file annual, quarterly and current reports and other information with the Securities and Exchange Commission (the “SEC”) (File No. 001-33615) pursuant to the Securities Exchange Act of 1934 (the “Exchange Act”). You may read and copy any documents that are filed at the SEC’s public reference room at 100 F Street, N.E., Washington, D.C. 20549. You may also obtain copies of these documents at prescribed rates from the public reference section of the SEC at its Washington address. Please call the SEC at 1-800-SEC-0330 for further information.
 
Our filings are also available to the public through the SEC’s website at http://www.sec.gov.
 
The SEC allows us to “incorporate by reference” information that we file with them, which means that we can disclose important information to you by referring you to documents previously filed with the SEC. The information incorporated by reference is an important part of this prospectus supplement, and the information that we later file with the SEC will automatically update and supersede this information. The following documents we filed with the SEC pursuant to the Exchange Act are incorporated herein by reference:
 
  •  our Annual Report on Form 10-K for the year ended December 31, 2009;
 
  •  our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2010, June 30, 2010 and September 30, 2010; and
 
  •  our Current Reports on Form 8-K and Form 8-K/A filed on January 25, 2010, January 29, 2010, March 1, 2010, April 29, 2010, May 11, 2010, June 15, 2010, June 18, 2010, July 20, 2010, September 29, 2010, October 13, 2010, November 8, 2010 and December 1, 2010 (excluding any information furnished pursuant to Item 2.02 or Item 7.01 of any such Current Report on Form 8-K).
 
These reports contain important information about us, our financial condition and our results of operations.


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All future documents filed pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act (excluding any information furnished pursuant to Item 2.02 or Item 7.01 on any Current Report on Form 8-K) before the termination of the offering of securities under this prospectus supplement shall be deemed to be incorporated in this prospectus supplement by reference and to be a part hereof from the date of filing of such documents. Any statement contained herein, or in a document incorporated or deemed to be incorporated by reference herein, shall be deemed to be modified or superseded for purposes of this prospectus supplement to the extent that a statement contained herein or in any subsequently filed document that also is or is deemed to be incorporated by reference herein, modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus supplement.
 
You may request a copy of these filings at no cost by writing or telephoning us at the following address and telephone number:
 
Concho Resources Inc.
550 West Texas Avenue, Suite 100
Midland, Texas 79701
Attention: General Counsel
(432) 683-7443
 
We also maintain a website at http://www.conchoresources.com. However, the information on our website is not part of this prospectus supplement.
 
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
 
Various statements contained in or incorporated by reference into this prospectus supplement that express a belief, expectation, or intention, or that are not statements of historical fact, are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 (the “Securities Act”) and Section 21E of the Exchange Act. These forward-looking statements include statements, projections and estimates concerning our operations, performance, business strategy, oil and natural gas reserves, drilling program, capital expenditures, liquidity and capital resources, the timing and success of specific projects, outcomes and effects of litigation, claims and disputes, derivative activities and potential financing. Forward-looking statements are generally accompanied by words such as “estimate,” “project,” “predict,” “believe,” “expect,” “anticipate,” “potential,” “could,” “may,” “foresee,” “plan,” “goal” or other words that convey the uncertainty of future events or outcomes. Forward-looking statements are not guarantees of performance. We have based these forward-looking statements on our current expectations and assumptions about future events. These statements are based on certain assumptions and analyses made by us in light of our experience and our perception of historical trends, current conditions and expected future developments as well as other factors we believe are appropriate under the circumstances. Actual results may differ materially from those implied or expressed by the forward-looking statements. These forward-looking statements speak only as of the date of this prospectus supplement, or if earlier, as of the date they were made. We disclaim any obligation to update or revise these statements unless required by securities law, and we caution you not to rely on them unduly. While our management considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory and other risks, contingencies and uncertainties relating to, among other matters, the risks discussed in “Risk Factors,” our Annual Report on Form 10-K for the year ended December 31, 2009, our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2010, June 30, 2010 and September 30, 2010 and our subsequent SEC filings, as well as those factors summarized below:
 
  •  sustained or further declines in the prices we receive for our oil and natural gas;
 
  •  uncertainties about the estimated quantities of oil and natural gas reserves;
 
  •  risks related to the integration of the assets of Marbob Energy Corporation and its former employees with our operations;


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  •  drilling and operating risks;
 
  •  the adequacy of our capital resources and liquidity including, but not limited to, access to additional borrowing capacity under our credit facility;
 
  •  the effects of government regulation, permitting and other legal requirements, including new legislation or regulation of hydraulic fracturing;
 
  •  difficult and adverse conditions in the domestic and global capital and credit markets;
 
  •  risks related to the concentration of our operations in the Permian Basin of Southeast New Mexico and West Texas;
 
  •  potential financial losses or earnings reductions from our commodity price risk management program;
 
  •  shortages of oilfield equipment, services and qualified personnel and increased costs for such equipment, services and personnel;
 
  •  risks and liabilities associated with acquired properties or businesses, including the assets acquired in connection with each of our recent acquisitions;
 
  •  uncertainties about our ability to successfully execute our business and financial plans and strategies;
 
  •  uncertainties about our ability to replace reserves and economically develop our current reserves;
 
  •  general economic and business conditions, either internationally or domestically or in the jurisdictions in which we operate;
 
  •  competition in the oil and natural gas industry;
 
  •  uncertainty concerning our assumed or possible future results of operations; and
 
  •  our existing indebtedness, as well as the increase in our indebtedness as a result of our recent acquisitions.
 
Reserve engineering is a process of estimating underground accumulations of oil and natural gas that cannot be measured in an exact way. The accuracy of any reserve estimate depends on the quality of available data, the interpretation of such data and price and cost assumptions made by our reserve engineers. In addition, the results of drilling, testing and production activities may justify revisions of estimates that were made previously. If significant, such revisions would change the schedule of any further production and development drilling. Accordingly, reserve estimates may differ from the quantities of oil and natural gas that are ultimately recovered.


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SUMMARY
 
This summary highlights selected information contained elsewhere in this prospectus supplement, the accompanying prospectus and the documents we incorporate by reference. It does not contain all of the information you should consider before making an investment decision. You should read the entire prospectus supplement, the accompanying prospectus, the documents incorporated by reference and the other documents to which we refer for a more complete understanding of our business and this offering. Please read the section entitled “Risk Factors” commencing on page S-10 of this prospectus supplement and additional information contained in our Annual Report on Form 10-K for the year ended December 31, 2009 and our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2010, June 30, 2010 and September 30, 2010 incorporated by reference in this prospectus supplement for more information about important factors you should consider before investing in our common stock in this offering.
 
In this prospectus supplement, we present, on a “pro forma as adjusted” basis, certain reserve, operating and capitalization data giving effect to our recent acquisitions of certain oil and natural gas properties from Marbob Energy Corporation and certain related sellers and from Apache Corporation. In addition, we also present certain financial, operating and capitalization data on a “pro forma” basis, giving effect to our acquisition from Marbob Energy Corporation and certain related sellers (but not Apache Corporation). Neither our presentation of information on a “pro forma as adjusted” basis nor on a “pro forma” basis gives effect to our pending disposition of oil and natural gas properties to Legacy Reserves LP. For a discussion of these acquisitions and divestitures, see “— Recent Developments.”
 
Our Business
 
We are an independent oil and natural gas company engaged in the acquisition, development and exploration of oil and natural gas properties. Our core operating areas are located in the Permian Basin region of Southeast New Mexico and West Texas, a large onshore oil and natural gas basin in the United States. The Permian Basin is one of the most prolific oil and natural gas producing regions in the United States and is characterized by an extensive production history, mature infrastructure, long reserve life, multiple producing horizons and enhanced recovery potential. We refer to our three core operating areas as the (i) New Mexico Shelf, where we primarily target the Yeso formation, (ii) Delaware Basin, where we primarily target the Bone Spring formation, and (iii) Texas Permian, where we primarily target the Wolfberry, a term applied to the combined Wolfcamp and Spraberry horizons. We intend to grow our reserves and production through development drilling and exploration activities on our multi-year project inventory and through acquisitions that meet our strategic and financial objectives.
 
At June 30, 2010 and after giving pro forma as adjusted effect to the acquisitions described below in “— Recent Developments — Recent Acquisitions,” we had estimated net proved oil and natural gas reserves of 306.4 MMBoe. In addition, we have hedged over 53 percent of our anticipated oil and natural gas production for 2011. Our strong hedge position and our ability to generate free cash flow enhance our ability to perform in volatile economic conditions.
 
Important characteristics of our reserve base on a pro forma as adjusted basis at June 30, 2010 include 64.7 percent oil and 35.3 percent natural gas and standardized measure of discounted future net cash flows of $3,479.5 million and PV-10 of $5,153.5 million. We set forth our definition of PV-10 (a non-GAAP financial measure) and a reconciliation of PV-10 to the standardized measure of discounted net cash flows under “— Non-GAAP Financial Measures and Reconciliations.”
 
We seek to operate the wells in which we own an interest. We operated wells that accounted for 91.6 percent of our net proved developed producing PV-10 and 64.9 percent of our 5,569 gross wells at June 30, 2010, on a pro forma as adjusted basis. By controlling operations, we are able to more effectively manage the cost and timing of exploration and development of our properties, including the drilling and stimulation methods used.


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The following table provides a summary of selected operating information in our core operating areas and our other oil and natural gas assets.
 
                                                 
    Pro Forma As Adjusted at
    Pro Forma As Adjusted at
 
    June 30, 20101, 2, 3     September 30, 20101, 3  
    Total Net Proved
                               
    Reserves
          % Proved
    Gross Identified
    Total Gross
    Total Net
 
    (Mboe)     % Oil     Developed     Drilling Locations     Acreage     Acreage  
 
Core operating areas:
                                               
New Mexico Shelf
    190,272       65.0 %     57.8 %     3,034       202,143       117,802  
Delaware Basin
    26,338       41.4 %     78.3 %     862       243,701       145,082  
Texas Permian
    85,125       70.7 %     46.7 %     1,755       285,064       89,808  
Other
    4,700       74.7 %     44.1 %     290       212,230       85,530  
                                                 
Total
    306,435       64.7 %     56.3 %     5,941 4     943,138       438,222  
                                                 
 
 
(1) Gives pro forma effect to additional oil and natural gas properties we acquired in the acquisitions described below in “— Recent Developments— Recent Acquisitions.”
 
(2) Based on our internally-prepared reserve estimates at June 30, 2010, which have not been reviewed or audited by our independent reserve engineers. See “— Summary Pro Forma As Adjusted Reserve and Pro Forma Operating Data.”
 
(3) Includes estimated reserves, drilling locations and acreage associated with oil and natural gas properties to be sold to Legacy Reserves LP. For more information, see “— Recent Developments — Permian Asset Divestiture.”
 
(4) Of the 5,941 gross identified drilling locations, 1,897 locations were associated with proved reserves, based on our internally-generated reserve estimates at June 30, 2010.
 
For more information about our proved reserves on a pro forma as adjusted basis giving effect to the acquisitions described below, see “— Summary Pro Forma As Adjusted Reserve and Pro Forma Operating Data.”
 
Recent Developments
 
Recent Acquisitions
 
Marbob Acquisition.  On July 19, 2010, we entered into an asset purchase agreement with Marbob Energy Corporation and certain related sellers (collectively, “Marbob”) to acquire (the “Marbob Acquisition,” and together with the concurrent credit facility amendment and private placement described below, the “Marbob Transactions”) substantially all of Marbob’s oil and natural gas leases, interests, properties and related assets. In October 2010, we closed the Marbob Acquisition for aggregate consideration of approximately $1.4 billion. The properties acquired in the Marbob Acquisition are primarily located in the Permian Basin of Southeast New Mexico, including a large acreage position contiguous to our core Yeso play on the Southeast New Mexico Shelf and a significant acreage position in the Bone Spring play in the Delaware Basin.
 
Aggregate consideration paid to Marbob consisted of approximately $1.1 billion of cash, the issuance of approximately 1.1 million shares of our common stock and a $150 million 8.0% senior unsecured note issued to Marbob due in 2018. The cash consideration was funded with borrowings under our credit facility and with proceeds from a concurrent $300 million private placement of our common stock.
 
Settlement Acquisition.  Subsequently in October 2010, in connection with the settlement of our litigation with BP America Production Company and Apache Corporation (“Apache”) related to certain preferential purchase rights associated with the Marbob Acquisition, we acquired from Apache (the “Settlement Acquisition,” and together with the Marbob Transactions, the “Acquisitions”) additional oil and natural gas assets in the Permian Basin of Southeast New Mexico for approximately $286 million. As a result of this acquisition, Apache will be our partner in, and will serve as the operator on, substantially all of the properties acquired in the Settlement Acquisition.


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Credit Agreement Amendment and Borrowing Base Increase
 
On October 7, 2010, we and our bank lenders entered into an amendment to our credit agreement. The amendment increased each of the borrowing base and the lenders’ aggregate commitment from $1.2 billion to $2.0 billion.
 
At September 30, 2010, on a pro forma as adjusted basis after giving effect to the Acquisitions, we would have had approximately $1.5 billion of secured indebtedness outstanding under our credit facility and we would have been able to incur an additional $0.5 billion of indebtedness under our credit facility. At November 30, 2010, we had approximately $1.5 billion of indebtedness outstanding under our credit facility.
 
In November 2010, we further amended our credit agreement to (i) allow us to issue up to an additional $600 million of senior unsecured notes, which will include the $350 million of notes discussed below under “— The Offering — Registered Senior Notes Offering” and (ii) provide that our borrowing base will not be reduced as a result of the issuance of up to $600 million of senior unsecured notes, including the notes discussed in “— The Offering — Registered Senior Notes Offering.”
 
2011 Capital Budget
 
In November 2010, we announced a capital budget for 2011 of approximately $1.1 billion. Of the approximately $940 million dedicated to drilling and recompletion projects in our core areas, approximately $580 million will be dedicated to our New Mexico Shelf assets (primarily in the Yeso play), approximately $220 million will be dedicated to our Texas Permian assets (primarily in the Wolfberry play) and approximately $140 million will be dedicated to our Delaware Basin assets (primarily in the Bone Spring play). On our New Mexico Shelf assets, we plan to drill approximately 540 Yeso wells and 13 Lower Abo wells. On our Texas Permian assets, we plan to drill approximately 210 Wolfberry wells. On our Delaware Basin assets, we plan to drill approximately 50 Bone Spring wells. The remaining approximately $160 million of capital will be allocated between leasehold acquisition, geological and geophysical costs and other costs (approximately $60 million) and facilities (approximately $100 million).
 
Permian Asset Divestiture
 
On November 5, 2010, we entered into an agreement to sell certain of our Permian Basin oil and natural gas properties to Legacy Reserves LP for cash consideration of $105 million. We expect to use the net proceeds from this asset divestiture to repay a portion of the outstanding borrowings under our credit facility. For the three months ended September 30, 2010, the properties to be sold produced an average of approximately 1,500 Boe per day, of which approximately 45 percent was crude oil. Based on our internal estimates at June 30, 2010, the properties to be sold included net proved reserves of approximately 6.0 MMBoe. This divestiture, which we expect to close in December 2010, is subject to customary closing conditions, and we can provide no certainty that it will close.
 
Corporate Information
 
We are a Delaware corporation formed in February 2006. Our principal executive offices are located at 550 West Texas Avenue, Suite 100, Midland, Texas 79701. Our common stock is listed on the New York Stock Exchange under the symbol “CXO.” We maintain a web site at http://www.conchoresources.com. However, the information on our website is not part of this prospectus supplement, and you should rely only on the information contained in this prospectus supplement and in the documents incorporated herein by reference when making a decision as to whether to buy our common stock in this offering.


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THE OFFERING
 
Issuer Concho Resources Inc.
 
Shares of common stock offered 2,300,000 shares.
 
Option to purchase additional shares The underwriters also have the option to purchase up to an additional 345,000 shares from us, at the public offering price, less the underwriting discount, within 30 days from the date of this prospectus supplement.
 
Shares of common stock outstanding following this offering1 102,192,421 shares (102,537,421 shares if the underwriters exercise their option to purchase additional shares in full).
 
Use of proceeds We will use the estimated net proceeds from this offering of approximately $      million (or $      million if the underwriters exercise their option to purchase additional shares in full) to repay a portion of the outstanding borrowings under our credit facility. For more information about our use of proceeds from this offering and the registered senior notes offering, see “Use of Proceeds.”
 
Conflicts of interest We intend to use at least 5% of the net proceeds of this offering to repay indebtedness owed by us to certain affiliates of the underwriters who are lenders under our credit facility. See “Use of Proceeds.” Accordingly, this offering is being made in compliance with the requirements of NASD Conduct Rule 2720 of the Financial Industry Regulatory Authority. In accordance with that rule, no “qualified independent underwriter” is required, because a bona fide public market exists in the shares, as that term is defined in the rule. For more information, see “Conflicts of Interest.”
 
 
(1) Based on 99,892,421 shares outstanding as of November 30, 2010.
 
Unless we indicate otherwise or the context otherwise requires, all of the information in this prospectus supplement:
 
  •  assumes no exercise of the underwriters’ option to purchase additional shares; and
 
  •  does not reflect as of November 30, 2010: (i) 1,623,930 shares of our common stock potentially issuable pursuant to the exercise of outstanding stock options held by our directors, officers and employees or (ii) 1,084,029 shares available for issuance under our 2006 Stock Incentive Plan.
 
Registered Senior Notes Offering
 
Shortly following the pricing of this offering, subject to market conditions, we expect to offer approximately $350 million aggregate principal amount of our senior notes due 2021 in a registered public offering. The size of the senior notes offering may be increased or decreased depending on market conditions, or we may decide not to undertake the offering at all. We intend to use the net proceeds from the senior notes offering to repay outstanding borrowings under our credit facility. The completion of this common stock offering is not conditioned upon the completion of the public offering of senior notes, and vice versa. We cannot give any assurance that the senior notes offering will be completed. Please see “Use of Proceeds” and “Capitalization.”


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RISK FACTORS
 
Investing in our common stock involves substantial risk. You should carefully consider the risk factors set forth in the section entitled “Risk Factors” and the other information contained in this prospectus supplement and the accompanying prospectus and the documents incorporated by reference therein, prior to making an investment in our common stock. See “Risk Factors” beginning on page S-10.


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Summary Consolidated Historical and Pro Forma Financial Data
 
Set forth below is our summary consolidated historical and pro forma financial data for the periods indicated. The historical financial data for the fiscal years ended December 31, 2009, 2008 and 2007 and the balance sheet data at December 31, 2009 and 2008 have been derived from our audited financial statements incorporated by reference in this prospectus supplement. The balance sheet data at December 31, 2007 has been derived from our audited financial statements that are not incorporated by reference in this prospectus supplement. The historical financial data for the nine months ended September 30, 2010 and 2009 and the balance sheet data at September 30, 2010 have been derived from our unaudited financial statements incorporated by reference in this prospectus supplement and include all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of this information. The balance sheet data at September 30, 2009 was derived from our unaudited financial statements that are not incorporated by reference in this prospectus supplement and includes all adjustments, consisting of normal recurring adjustments, necessary for a fair statement of this information. The unaudited pro forma balance sheet data at September 30, 2010 gives effect to the Marbob Transactions as if they had occurred on September 30, 2010, and the unaudited pro forma financial data for the nine months ended September 30, 2010 and the year ended December 31, 2009 gives effect to the Marbob Transactions as if they had occurred on January 1, 2009, each of which is incorporated by reference in this prospectus supplement. You should read the following summary financial data in conjunction with “— Recent Developments” included elsewhere in this prospectus supplement and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2009 and our Quarterly Report on Form 10-Q for the three months ended September 30, 2010, each of which is incorporated by reference herein.
 
                                                         
    Unaudited Pro
                Unaudited Pro
                   
    Forma Nine
                Forma Year
                   
    Months Ended
    Nine Months
    Ended
                   
    September 30,
    Ended September 30,     December 31,
    Year Ended December 31,  
    20101     2010     2009     20091     2009     2008     2007  
          (Unaudited)                          
    (In thousands)  
 
Statement of operations data:
                                                       
Operating revenues:
                                                       
Oil sales
  $ 642,742     $ 528,129     $ 287,786     $ 532,453     $ 425,361     $ 390,945     $ 195,596  
Natural gas sales
    202,654       140,077       79,042       173,109       119,086       142,844       98,737  
                                                         
Total operating revenues
    845,396       668,206       366,828       705,562       544,447       533,789       294,333  
                                                         
Operating costs and expenses:
                                                       
Oil and natural gas production
    162,208       122,220       76,022       142,384       108,118       91,234       54,267  
Exploration and abandonments
    5,798       5,798       10,195       10,763       10,660       38,468       29,098  
Depreciation, depletion and amortization
    249,351       169,844       157,985       273,549       206,143       123,912       76,779  
Accretion of discount on asset retirement obligations
    1,520       1,177       799       1,583       1,058       889       444  
Impairments of long-lived assets
    9,234       9,234       9,686       13,065       12,197       18,417       7,267  
General and administrative
    63,369       46,141       38,633       63,467       52,277       40,776       25,177  
Bad debt expense
    578       578             (1,035 )     (1,035 )     2,905        
Contract drilling fees — stacked rigs
                                        4,269  
Ineffective portion of cash flow hedges
                                  (1,336 )     821  
(Gain) loss on derivatives not designated as hedges
    (62,229 )     (62,229 )     94,435       156,857       156,857       (249,870 )     20,274  
                                                         
Total operating costs and expenses
    429,829       292,763       387,755       660,633       546,275       65,395       218,396  
                                                         
Income (loss) from operations
    415,567       375,443       (20,927 )     44,929       (1,828 )     468,394       75,937  
                                                         
Other income (expense):
                                                       
Interest expense
    (66,762 )     (34,293 )     (17,379 )     (69,072 )     (28,292 )     (29,039 )     (36,042 )
Other, net
    (435 )     (3,898 )     (348 )     (412 )     (414 )     1,432       1,484  
                                                         
Total other expense
    (67,197 )     (38,191 )     (17,727 )     (69,484 )     (28,706 )     (27,607 )     (34,558 )
                                                         


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    Unaudited Pro
                Unaudited Pro
                   
    Forma Nine
                Forma Year
                   
    Months Ended
    Nine Months
    Ended
                   
    September 30,
    Ended September 30,     December 31,
    Year Ended December 31,  
    20101     2010     2009     20091     2009     2008     2007  
          (Unaudited)                          
    (In thousands)  
 
Income (loss) before income taxes
    348,370       337,252       (38,654 )     (24,555 )     (30,534 )     440,787       41,379  
Income tax (expense) benefit
    (129,202 )     (124,766 )     11,973       18,346       20,732       (162,085 )     (16,019 )
                                                         
Net income (loss)
    219,168       212,486       (26,681 )     (6,209 )     (9,802 )     278,702       25,360  
Preferred stock dividends
                                        (45 )
                                                         
Net income (loss) applicable to common shareholders
  $ 219,168     $ 212,486     $ (26,681 )   $ (6,209 )   $ (9,802 )   $ 278,702     $ 25,315  
                                                         
Other financial data:
                                                       
Net cash provided by operating activities
          $ 402,756     $ 232,078             $ 359,546     $ 391,397     $ 169,769  
Net cash used in investing activities
            (512,824 )     (241,878 )             (586,148 )     (946,050 )     (160,353 )
Net cash provided by financing activities
            107,191       7,743               212,084       541,981       19,886  
Capital expenditures on oil and natural gas properties
          $ 486,903     $ 316,756             $ 403,798     $ 347,702     $ 162,378  
 
 
(1) Gives pro forma effect to the Marbob Transactions, but does not give pro forma effect to the Settlement Acquisition. See “— Recent Developments — Recent Acquisitions.”
 
                                                 
    Unaudited Pro
                               
    Forma
                               
    September 30,
    September 30,     December 31,  
    20101     2010     2009     2009     2008     2007  
          (Unaudited)                    
    (In thousands)  
 
Balance sheet data:
                                               
Cash and cash equivalents
  $ 357     $ 357     $ 15,695     $ 3,234     $ 17,752     $ 30,424  
Property and equipment, net
    4,546,218       3,195,898       2,528,172       2,856,289       2,401,404       1,394,994  
Total assets
    4,927,630       3,541,675       2,821,526       3,171,085       2,815,203       1,508,229  
Long-term debt, including current maturities
    1,708,3342       688,620       645,747       845,836       630,000       327,404  
Stockholders’ equity
    2,147,262       1,788,622       1,312,700       1,335,428       1,325,154       775,398  
 
 
(1) Gives pro forma effect to the Marbob Transactions, but does not give pro forma effect to the Settlement Acquisition. See “— Recent Developments — Recent Acquisitions.”
 
(2) After giving pro forma as adjusted effect to the Acquisitions, long-term debt, including current maturities, would have been approximately $2.0 billion at September 30, 2010.


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Summary Pro Forma As Adjusted Reserve and Pro Forma Operating Data
 
Pro Forma As Adjusted Reserve Data
 
The following table presents summary data with respect to our internally estimated net proved oil and natural gas reserves at June 30, 2010 on a pro forma as adjusted basis, giving effect to the Acquisitions described in “— Recent Developments — Recent Acquisitions.” The estimates of net proved reserves at June 30, 2010 below present:
 
  •  our historical estimated net proved reserves;
 
  •  the estimated net proved reserves we acquired in the Marbob Acquisition;
 
  •  the estimated net proved reserves we acquired in the Settlement Acquisition; and
 
  •  our estimated net proved reserves on a pro forma as adjusted basis including the reserves we acquired in the Acquisitions.
 
The reserve estimates at June 30, 2010 presented in the table below are based on evaluations prepared by our internal reserve engineers, which have not been prepared or audited by Cawley, Gillespie & Associates, Inc. or Netherland, Sewell & Associates, Inc., our independent reserve engineers. The historical and pro forma as adjusted reserve estimates presented below do not reflect our pending disposition of reserves associated with oil and natural gas properties to be sold to Legacy Reserves LP, as described in “— Recent Developments — Permian Asset Divestiture.” Estimates of net proved oil and natural gas reserves are inherently uncertain, and any material inaccuracies in the estimates prepared by our internal reserve engineers will materially affect the quantities and values of our reserves. Our internal net proved reserve estimates are based upon various assumptions, including assumptions related to oil and natural gas prices, drilling and operating expenses, capital expenditures, taxes and availability of funds. These reserve estimates were prepared in accordance with the SEC’s rules regarding oil and natural gas reserve reporting that are currently in effect. You should refer to “Risk Factors” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” in our Annual Report on Form 10-K for the year ended December 31, 2009 and our Quarterly Report on Form 10-Q for the three months ended September 30, 2010 and “Business” in our Annual Report on Form 10-K for the year ended December 31, 2009, each of which is incorporated by reference herein, in evaluating the material presented below.
 
                                 
    June 30, 2010  
          Marbob
    Settlement
    Pro Forma As
 
    Historical     Acquisition     Acquisition     Adjusted  
 
Net Proved Reserves:
                               
Oil (MBbl)
    156,634       34,172       7,515       198,321  
Natural gas (MMcf)
    466,634       159,127       22,924       648,685  
Total (MBoe)
    234,406       60,693       11,336       306,435  
Proved developed reserves percentage
    53.3 %     68.5 %     51.8 %     56.3 %


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Historical and Pro Forma Production and Operating Data
 
The following table presents summary information concerning our production and operating data for the nine months ended September 30, 2010 on a historical basis and on a pro forma basis, giving effect to the Marbob Acquisition as if it had occurred on January 1, 2010.
 
                 
    Nine Months Ended September 30, 2010  
    Historical     Pro Forma1  
 
Production and operating data:
               
Net production volumes:
               
Oil (MBbl)
    7,163       8,759  
Natural gas (MMcf)
    20,393       31,857  
Total (MBoe)
    10,562       14,069  
Average daily production volumes:
               
Oil (MBbl)
    26,238       32,084  
Natural gas (MMcf)
    74,700       116,692  
Total (MBoe)
    38,688       51,533  
Operating costs and expenses per Boe:
               
Lease operating expenses and workover costs
  $ 6.07     $ 6.17  
Oil and natural gas taxes
  $ 5.50     $ 5.39  
Depletion, depreciation and amortization
  $ 16.08     $ 17.72  
General and administrative
  $ 4.37     $ 4.50  
 
 
(1) Gives pro forma effect to the Marbob Acquisition, but does not give pro forma effect to the Settlement Acquisition. See “— Recent Developments — Recent Acquisitions.”
 
Non-GAAP Financial Measures and Reconciliations
 
PV-10
 
PV-10 is derived from the standardized measure of discounted future net cash flows, which is the most directly comparable GAAP financial measure. PV-10 is a computation of the standardized measure of discounted future net cash flows on a pre-tax basis. PV-10 is equal to the standardized measure of discounted future net cash flows at the applicable date, before deducting future income taxes, discounted at 10%. We believe that the presentation of the PV-10 is relevant and useful to investors because it presents the discounted future net cash flows attributable to our estimated net proved reserves prior to taking into account future corporate income taxes, and it is a useful measure for evaluating the relative monetary significance of our oil and natural gas properties. Further, investors may utilize the measure as a basis for comparison of the relative size and value of our reserves to other companies. We use this measure when assessing the potential return on investment related to our oil and natural gas properties. PV-10, however, is not a substitute for the standardized measure of discounted future net cash flows. Our PV-10 measure and the standardized measure of discounted future net cash flows do not purport to present the fair value of our oil and natural gas reserves.
 
Our calculations of PV-10 and standardized measure of discounted future net cash flows at June 30, 2010, after giving pro forma as adjusted effect to the Acquisitions, are based on our internal reserve estimates, which have not been reviewed or audited by our independent reserve engineers. The following table provides a reconciliation of the standardized measure of future net cash flows to PV-10 at June 30, 2010.
 
         
    Pro Forma as
 
    Adjusted at
 
    June 30,
 
    2010  
    (In millions)  
 
PV-10
  $ 5,153.5  
Present value of future income tax discounted at 10%
    (1,674.0 )
         
Standardized measure of discounted future net cash flows
  $ 3,479.5  
         


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RISK FACTORS
 
An investment in our common stock involves risk. In addition to the risks described below, you should also carefully read all of the other information included in this prospectus supplement, the accompanying prospectus and the documents we have incorporated by reference into this prospectus supplement in evaluating an investment in our common stock. If any of the described risks actually were to occur, our business, financial condition or results of operations could be affected materially and adversely. In that case, the trading price of our common stock could decline and you could lose all or part of your investment.
 
The risks described below are not the only ones facing our company. Additional risks not presently known to us or that we currently deem immaterial individually or in the aggregate may also impair our business operations.
 
This prospectus supplement and documents incorporated by reference also contain forward-looking statements that involve risks and uncertainties, some of which are described in the documents incorporated by reference in this prospectus supplement and the accompanying prospectus. Our actual results could differ materially from those anticipated in these forward-looking statements as a result of various factors, including the risks and uncertainties faced by us described below or incorporated by reference in this prospectus supplement and the accompanying prospectus.
 
Risks Related to Our Common Stock
 
Our restated certificate of incorporation, our bylaws and Delaware law contain provisions that could discourage acquisition bids or merger proposals, which may adversely affect the market price of our common stock.
 
Our restated certificate of incorporation authorizes our board of directors to issue preferred stock without stockholder approval. If our board of directors elects to issue preferred stock, it could be more difficult for a third party to acquire us. In addition, some provisions of our certificate of incorporation, our bylaws and Delaware law could make it more difficult for a third party to acquire control of us, even if the change of control would be beneficial to our stockholders, including:
 
  •  the organization of our board of directors as a classified board, which allows no more than approximately one-third of our directors to be elected each year;
 
  •  stockholders cannot remove directors from our board of directors except for cause and then only by the holders of not less than 662/3 percent of the voting power of all outstanding voting stock;
 
  •  the prohibition of stockholder action by written consent; and
 
  •  limitations on the ability of our stockholders to call special meetings and establish advance notice provisions for stockholder proposals and nominations for elections to the board of directors to be acted upon at meetings of stockholders.
 
Because we have no plans to pay dividends on our common stock, investors must look solely to stock appreciation for a return on their investment in us.
 
We do not anticipate paying any cash dividends on our common stock in the foreseeable future. We currently intend to retain all future earnings to fund the development and growth of our business. Any payment of future dividends will be at the discretion of our board of directors and will depend on, among other things, our earnings, financial condition, capital requirements, level of indebtedness, statutory and contractual restrictions applying to the payment of dividends and other considerations that our board of directors deems relevant. Covenants contained in our credit facility and the indenture governing our 8.625% senior notes due 2017 restrict the payment of dividends. Investors must rely on sales of their common stock after price appreciation, which may never occur, as the only way to realize a return on their investment. Investors seeking cash dividends should not purchase our common stock.


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The availability of shares for sale in the future could reduce the market price of our common stock.
 
In the future, we may issue securities to raise cash for acquisitions or other corporate purposes. We may also acquire interests in other companies by using a combination of cash and our common stock or just our common stock. We may also issue securities convertible into, or exchangeable for, or that represent the right to receive, our common stock. Any of these events may dilute your ownership interest in our company, reduce our earnings per share and have an adverse impact on the price of our common stock.
 
In addition, sales of a substantial amount of our common stock in the public market, or the perception that such sales may occur, could reduce the market price of our common stock. This could also impair our ability to raise additional capital through the sale of our securities.


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USE OF PROCEEDS
 
We expect the net proceeds from this offering to be approximately $      million (or approximately $      million if the underwriters exercise their option to purchase additional shares in full), after deducting estimated fees and expenses (including underwriting discounts and commissions). We intend to use the net proceeds from this offering to repay a portion of the outstanding borrowings under our credit facility.
 
Shortly following the pricing of this offering, subject to market conditions, we expect to offer approximately $350 million aggregate principal amount of our senior notes due 2021 in a registered public offering. The size of the senior notes offering may be increased or decreased depending on market conditions, or we may decide not to undertake the offering at all. The completion of this offering is not conditioned upon the completion of the public offering of senior notes, and vice versa. We cannot give any assurance that the senior notes offering will be completed. Please see “Capitalization.”
 
Our credit facility matures on July 31, 2013. At September 30, 2010, we had outstanding borrowings thereunder of approximately $392.5 million, which bore interest at a rate of approximately 4.6 percent. Borrowings under the credit facility are incurred for general corporate purposes, including the funding of our capital budget and to consummate the Acquisitions. Any amounts repaid with the proceeds from this offering or the registered senior notes offering may be reborrowed in the future. At September 30, 2010, after giving effect to: (i) the Acquisitions, (ii) the issuance and sale of the senior notes due 2021 and the application of the estimated net proceeds therefrom as described in “Summary — The Offering — Registered Senior Notes Offering,” and (iii) the issuance and sale of the common stock offered hereby and the application of the estimated net proceeds therefrom, we would have been able to incur an additional $1.0 billion of indebtedness under our credit facility. If we do not consummate the registered senior notes offering, we would have been able to incur an additional $0.7 billion of indebtedness under our credit facility.


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CAPITALIZATION
 
The following table sets forth our capitalization at September 30, 2010:
 
  •  on an actual basis;
 
  •  on a pro forma as adjusted basis to reflect the completion of the Acquisitions, as if they occurred on September 30, 2010;
 
  •  on a pro forma as further adjusted basis to give effect to (i) the completion of this common stock offering and (ii) our application of the estimated net proceeds from this offering in the manner described in “Use of Proceeds”; and
 
  •  on a pro forma as finally adjusted basis to give effect to (i) the completion of our registered senior notes offering described under “Summary — The Offering — Registered Senior Notes Offering” and (ii) our application of the estimated net proceeds from the registered senior notes offering at par in the manner as described in “Summary — The Offering — Registered Senior Notes Offering.”
 
                                 
    September 30, 2010 (Unaudited)  
                Pro Forma as
    Pro Forma
 
          Pro Forma as
    Further
    as Finally
 
    Actual     Adjusted     Adjusted     Adjusted  
          (In thousands)        
 
Cash and cash equivalents
  $ 357     $ 357     $ 357     $ 357  
                                 
Long-term debt:
                               
Credit facility
  $ 392,500     $ 1,539,444     $ 1,348,444     $ 1,006,444 1
8.625% senior notes due 20172
    296,120       296,120       296,120       296,120  
8.0% senior note due 20183
          159,000       159,000       159,000  
Senior notes due 20214
                      350,000  
                                 
Total long-term debt
    688,620       1,994,564       1,803,564       1,811,564  
                                 
Stockholders’ equity:
                               
Common stock, $0.001 par value; 300,000,000 authorized; (i) 91,908,877 actual shares issued, (ii) 99,635,146 pro forma as adjusted shares issued and (iii) 101,935,146 pro forma as further adjusted and pro forma as finally adjusted shares issued, each at September 30, 2010
    92       100                  
Additional paid-in capital
    1,270,887       1,635,921                  
Retained earnings
    518,853       512,451                  
Treasury stock, at cost; 27,044 shares at September 30, 2010
    (1,210 )     (1,210 )     (1,210 )     (1,210 )
                                 
Total stockholders’ equity
    1,788,622       2,147,262                  
                                 
Total capitalization
  $ 2,477,242     $ 4,141,826     $       $  
                                 
 
 
(1) At September 30, 2010, after giving effect to (i) the Acquisitions and (ii) the issuance and sale of the common stock offered hereby and our registered senior notes offering and the application of the estimated net proceeds therefrom, we would have been able to incur an additional $1.0 billion of indebtedness under our credit facility. We expect our registered senior notes offering to close following the closing of this common stock offering. If we do not consummate the registered senior notes offering, approximately $1.3 billion in borrowings under our credit facility will remain outstanding.
 
(2) The $300 million of senior notes are recorded at their discounted amount, with the discount to be amortized over the life of the senior notes.
 
(3) The $150 million senior note is recorded at its fair value, which at September 30, 2010 was estimated to be approximately $159 million. The premium on this senior note will be accreted over the life of the senior note.
 
(4) Assumes the $350 million of senior notes will be issued at par. See “Summary — The Offering — Registered Senior Notes Offering.”


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PRICE RANGE OF COMMON STOCK
 
Our common stock is listed on the New York Stock Exchange under the symbol “CXO.” The following table shows, for the periods indicated, the high and low reported sale prices for our common stock, as reported on the New York Stock Exchange.
 
                 
    Sales Price  
    High     Low  
 
2008:
               
First quarter
  $ 26.44     $ 17.33  
Second quarter
  $ 40.97     $ 25.12  
Third quarter
  $ 39.07     $ 22.31  
Fourth quarter
  $ 27.79     $ 14.71  
2009:
               
First quarter
  $ 28.10     $ 17.29  
Second quarter
  $ 33.57     $ 23.50  
Third quarter
  $ 38.70     $ 25.17  
Fourth quarter
  $ 47.00     $ 33.71  
2010:
               
First quarter
  $ 51.62     $ 42.60  
Second quarter
  $ 61.65     $ 44.30  
Third quarter
  $ 66.49     $ 51.51  
Fourth quarter (through December 6, 2010)
  $ 87.29     $ 65.95  
 
On December 6, 2010, the last sales price of our common stock as reported on the New York Stock Exchange was $87.01 per share.
 
As of November 30, 2010, there were approximately 500 holders of record of our common stock.
 
DIVIDEND POLICY
 
We have not paid, and do not intend to pay in the foreseeable future, cash dividends on our common stock. Covenants contained in our credit facility and the indenture governing our 8.625% senior notes due 2017 restrict the payment of dividends on our common stock. We currently intend to retain all future earnings to fund the development and growth of our business. Any payment of future dividends will be at the discretion of our board of directors and will depend on, among other things, our earnings, financial condition, capital requirements, level of indebtedness, statutory and contractual restrictions applying to the payment of dividends and other considerations that our board of directors deems relevant.


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CERTAIN UNITED STATES FEDERAL INCOME TAX CONSEQUENCES FOR NON-U.S. HOLDERS OF OUR COMMON STOCK
 
The following is a summary of certain United States federal income tax consequences to Non-U.S. holders with respect to the acquisition, ownership and disposition of our common stock. A “Non-U.S. holder” for purposes of this discussion is any beneficial owner of our common stock who acquires such stock for cash pursuant to the terms of this prospectus supplement and who is not:
 
  •  an individual citizen or resident of the United States, including an alien individual who is a lawful permanent resident of the United States or meets the “substantial presence” test under section 7701(b)(3) of the Internal Revenue Code of 1986, as amended (the “Code”);
 
  •  a corporation (including an entity treated as a corporation for United States federal income tax purposes) created or organized in the United States or under the laws of the United States, any state thereof, or the District of Columbia;
 
  •  a partnership (or an entity treated as a partnership for United States federal income tax purposes);
 
  •  an estate, the income of which is subject to United States federal income tax regardless of its source; or
 
  •  a trust (i) if a United States court can exercise primary supervision over the administration of the trust and one or more United States persons can control all substantial decisions of the trust, or (ii) that has a valid election in effect under applicable Treasury Regulations to be treated as a United States person.
 
This discussion is based on current provisions of the Code, final, temporary and proposed Treasury Regulations, judicial opinions, published positions of the Internal Revenue Service (the “IRS”) and administrative and judicial authorities, all of which are subject to change, possibly with retroactive effect, or are subject to different interpretations. This discussion assumes that a Non-U.S. holder holds our common stock as a capital asset (generally, property held for investment). This discussion does not address all aspects of United States federal income taxation, any United States federal tax laws other than federal income tax laws (e.g., estate or gift tax laws) or any aspects of state, local, or non-U.S. taxation, nor does it consider any specific facts or circumstances that may apply to particular Non-U.S. holders that may be subject to special treatment under the United States federal income tax laws, such as (without limitation):
 
  •  certain United States expatriates;
 
  •  shareholders that hold our common stock as part of a straddle, constructive sale transaction, synthetic security, hedge, conversion transaction or other integrated investment or risk reduction transaction;
 
  •  shareholders that acquired our common stock through the exercise of employee stock options or otherwise as compensation or through a tax-qualified retirement plan;
 
  •  shareholders that are partnerships or other pass-through entities or holders of interests therein;
 
  •  financial institutions;
 
  •  insurance companies;
 
  •  tax-exempt entities;
 
  •  dealers in securities or foreign currency; and
 
  •  traders in securities that use a mark-to-market method of accounting for United States federal income tax purposes.
 
If a partnership (including an entity treated as a partnership for United States federal income tax purposes) holds our common stock, the tax treatment of a partner of the partnership generally will depend upon the status of the partner and the activities of the partnership. If you are a partner of a partnership (including an entity treated as a partnership for United States federal income tax purposes) holding our common stock, you should consult your tax advisor.


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THIS DISCUSSION DOES NOT CONSTITUTE LEGAL ADVICE TO ANY PROSPECTIVE PURCHASER OF OUR COMMON STOCK. INVESTORS CONSIDERING THE PURCHASE OF OUR COMMON STOCK SHOULD CONSULT THEIR TAX ADVISORS WITH RESPECT TO THE APPLICATION OF UNITED STATES FEDERAL INCOME TAX LAWS TO THEIR PARTICULAR SITUATIONS AS WELL AS ANY TAX CONSEQUENCES ARISING UNDER U.S. ESTATE AND GIFT TAX LAWS OR UNDER THE LAWS OF ANY STATE, LOCAL OR FOREIGN TAXING JURISDICTION OR UNDER ANY APPLICABLE TAX TREATY.
 
Dividends
 
We do not expect to pay any cash distributions on our common stock in the foreseeable future. However, in the event we do make cash distributions, such distributions will be treated as dividends to the extent of our current and accumulated earnings and profits as determined under the Code and will be subject to withholding as discussed below. Any portion of a distribution that exceeds our current and accumulated earnings and profits will first be applied to reduce the Non-U.S. holder’s basis in the common stock and, to the extent such portion exceeds the Non-U.S. holder’s basis, the excess will be treated as gain from the disposition of the common stock, the tax treatment of which is discussed below under “— Gain on Sale or Other Disposition of Common Stock”
 
Dividends paid to a Non-U.S. holder on our common stock will generally be subject to United States withholding tax at a rate of 30% or such lower rate as may be specified by an applicable income tax treaty. A Non-U.S. holder of our common stock that wishes to claim the benefit of an applicable treaty rate for dividends will be required to (i) complete IRS Form W-8BEN (or other applicable form) and certify under penalties of perjury that such holder is not a United States person as defined under the Code and is eligible for treaty benefits, or (ii) if our common stock is held through certain foreign intermediaries, satisfy the relevant certification requirements of applicable Treasury Regulations. A Non-U.S. holder of our common stock that is eligible for a reduced rate of United States withholding tax pursuant to an income tax treaty may obtain a refund of any excess amounts withheld by timely filing an appropriate claim for refund with the IRS.
 
Dividends that are effectively connected with the conduct of a trade or business by the Non-U.S. holder within the United States (and, where a tax treaty so requires, are attributable to a permanent establishment maintained by the Non-U.S. holder in the United States) are not subject to United States withholding tax, provided certain certification and disclosure requirements are satisfied (which generally may be met by providing an IRS Form W-8ECI). Instead, such dividends are subject to United States federal income tax on a net income basis in the same manner as if the Non-U.S. holder were a United States person as defined under the Code, unless an applicable income tax treaty provides otherwise. Any such effectively connected dividends received by a foreign corporation may be subject to an additional “branch profits tax” at a 30% rate or such lower rate as may be specified by an applicable income tax treaty.
 
Gain on Sale or Other Disposition of Common Stock
 
In general, a Non-U.S. holder will not be subject to United States federal income tax on any gain realized upon the sale, exchange, redemption, retirement or other taxable disposition of the Non-U.S. holder’s shares of common stock unless:
 
  •  the gain is effectively connected with a trade or business carried on by the Non-U.S. holder within the United States (and, where an income tax treaty so requires, is attributable to a United States permanent establishment maintained by the Non-U.S. holder);
 
  •  the Non-U.S. holder is an individual who is present in the United States for 183 days or more in the taxable year of disposition and certain other conditions are met; or
 
  •  we are or have been a United States real property holding corporation or “USRPHC” for United States federal income tax purposes at any time during the shorter of the period during which such Non-U.S. holder holds our stock or the five-year period ending on the date such Non-U.S. holder disposes of our stock.
 
A Non-U.S. holder described in the first bullet point above will be subject to tax on the net gain realized from the sale or other disposition under regular graduated U.S. federal income tax rates in the same manner as if it were a United States person (as defined in the Code), and if the Non-U.S. holder is a corporation, it may


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also be subject to the branch profits tax at a rate of 30% of its effectively connected earnings and profits or at such lower rate as may be specified by an applicable income tax treaty.
 
An individual Non-U.S. holder described in the second bullet point above will be subject to a flat 30% tax on the gain derived from the sale or other disposition, which may be offset by U.S. source capital losses, even though the individual is not considered a resident of the United States.
 
Because of the oil and natural gas properties and other real property assets we own, we believe that we are and will remain a USRPHC. However, so long as our common stock continues to be regularly traded on an established securities market, only a Non-U.S. holder who owns or has owned (actually or by applying certain constructive ownership rules) at any time during the shorter of the five-year period preceding the date of disposition or the holder’s holding period more than 5% of our common stock will be subject to United States federal income tax on the disposition of such common stock by reason of our status as a USRPHC.
 
Information Reporting and Backup Withholding
 
We must report annually to the IRS and to a Non-U.S. holder the amount of dividends paid to such holder and any tax withheld with respect to those dividends, regardless of whether withholding is required. Copies of the information returns reporting such dividends and withholding may also be made available to the tax authorities in the country in which the Non-U.S. holder resides under the provisions of an applicable income tax treaty. United States backup withholding tax will be imposed on certain payments to persons that fail to furnish the information required under the United States information reporting requirements. A Non-U.S. holder will be exempt from this backup withholding if such holder properly provides a Form W-8BEN (or valid substitute or successor form) certifying that it is not a United States person (as defined in the Code) or otherwise meets documentary evidence requirements for establishing that it is not a United States person or otherwise establishes an exemption.
 
The gross proceeds from the disposition of our common stock may be subject to information reporting and backup withholding. If a Non-U.S. holder sells our common stock outside the United States through a non-U.S. office of a non-U.S. broker and the sales proceeds are paid to the Non-U.S. holder outside the United States, then the United States backup withholding and information reporting requirements generally will not apply to that payment. However, unless such a broker has documentary evidence in its records that the Non-U.S. holder is not a United States person and certain other conditions are met, or the Non-U.S. holder otherwise establishes an exemption, information reporting will apply to a payment of the proceeds of the disposition of our common stock effected outside the United States by such a broker if it is:
 
  •  a United States person;
 
  •  a foreign person that derives 50% or more of its gross income for certain periods from the conduct of a trade or business in the United States;
 
  •  a controlled foreign corporation for U.S. federal income tax purposes; or
 
  •  a foreign partnership that, at any time during its taxable year, has more than 50% of its income or capital interests owned by United States persons or is engaged in the conduct of a U.S. trade or business.
 
Backup withholding is not an additional tax. Any amount withheld under the backup withholding rules is allowable as a credit against the Non-U.S. holder’s U.S. federal income tax liability, if any, and a refund may be obtained if the amounts withheld exceed such holder’s actual U.S. federal income tax liability and the required information or appropriate claim form is timely provided to the IRS.
 
Additional Withholding Requirements
 
Under recently enacted legislation, the relevant withholding agent may be required to withhold 30% of any dividends paid by us and the proceeds of a sale of our common stock paid after December 31, 2012 to (i) a foreign financial institution unless such foreign financial institution agrees to verify, report and disclose its U.S. account holders and meets certain other specified requirements or (ii) a non-financial foreign entity


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that is the beneficial owner of the payment unless such entity certifies that it does not have any substantial United States owners or provides the name, address and taxpayer identification number of each substantial United States owner and such entity meets certain other specified requirements.
 
THE PRECEDING DISCUSSION OF CERTAIN UNITED STATES FEDERAL INCOME TAX CONSEQUENCES FOR NON-U.S. HOLDERS OF OUR COMMON STOCK IS FOR GENERAL INFORMATION ONLY AND SHOULD NOT BE CONSIDERED TAX ADVICE. EACH PROSPECTIVE INVESTOR SHOULD CONSULT ITS OWN TAX ADVISOR REGARDING THE PARTICULAR UNITED STATES FEDERAL, STATE, LOCAL AND NON-U.S. TAX CONSEQUENCES OF THE ACQUISITION, OWNERSHIP AND DISPOSITION OF OUR COMMON STOCK, INCLUDING THE CONSEQUENCES OF ANY PROPOSED CHANGE IN APPLICABLE LAWS.


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UNDERWRITING
 
Subject to the terms and conditions stated in the underwriting agreement among us and Goldman, Sachs & Co. as representative of the underwriters named below, we have agreed to sell to each underwriter and each underwriter named below has severally agreed to purchase from us the number of shares of common stock that appears opposite the name of the underwriters in the table below.
 
         
Underwriter
  Number of Shares  
 
Goldman, Sachs & Co. 
       
Barclays Capital Inc. 
       
J.P. Morgan Securities LLC
                     
Raymond James & Associates, Inc. 
       
         
Total
    2,300,000  
         
 
Subject to the terms and conditions set forth in the underwriting agreement, the underwriters have agreed, severally and not jointly, to purchase all of the shares sold under the underwriting agreement if any of these shares are purchased. If an underwriter defaults, the underwriting agreement provides that the purchase commitments of the nondefaulting underwriters may be increased or the underwriting agreement may be terminated.
 
We have agreed to indemnify the several underwriters against certain liabilities, including liabilities under the Securities Act, or to contribute to payments the underwriters may be required to make in respect of those liabilities.
 
The underwriters are offering the shares, subject to prior sale, when, as and if issued to and accepted by them, subject to approval of legal matters by their counsel, including the validity of the shares, and other conditions contained in the underwriting agreement, such as the receipt by the underwriters of officer’s certificates and legal opinions. The underwriters reserve the right to withdraw, cancel or modify offers to the public and to reject orders in whole or in part.
 
Commissions and Discounts
 
The underwriters propose initially to offer the shares to the public at the public offering price set forth on the cover page of this prospectus supplement and to dealers at that price less a concession not in excess of $      per share. The underwriters may allow, and the dealers may reallow, a discount not in excess of $      per share to other dealers. After the initial offering, the public offering price, concession, reallowance discount or any other term of the offering may be changed.
 
The following table shows the public offering price, underwriting discount and proceeds before expenses to us. The information assumes either no exercise or full exercise by the underwriters of their option to purchase additional shares.
 
                         
    Per Share     Without Option     With Option  
 
Public offering price
  $                $                $             
Underwriting discount
  $       $       $    
Proceeds, before expenses, to us
  $       $       $  
 
The expenses of the offering, not including the underwriting discount, are estimated to be approximately $300,000 and are payable by us.
 
Option to Purchase Additional Shares
 
We have granted an option to the underwriters to purchase up to 345,000 additional shares at the public offering price, less the underwriting discount. The underwriters may exercise this option for 30 days from the date of this prospectus supplement. If the underwriters exercise this option, each will be obligated, subject to


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conditions contained in the underwriting agreement, to purchase a number of additional shares proportionate to that underwriter’s initial amount reflected in the above table.
 
No Sales of Similar Securities
 
We have agreed that we will not offer, sell, contract to sell, pledge or otherwise dispose of, directly or indirectly, or file with the SEC a registration statement under the Securities Act of 1933 relating to, any shares of our common stock or securities convertible into or exchangeable or exercisable for any shares of our common stock, or publicly disclose the intention to make any offer, sale, pledge, disposition or filing, without the prior written consent of Goldman, Sachs & Co. for a period of 60 days after the date of this prospectus supplement.
 
Our directors and executive officers have entered into lock up agreements with the underwriters prior to the commencement of this offering pursuant to which we and each of these persons or entities, with limited exceptions, for a period of 60 days after the date of this prospectus supplement, may not, without the prior written consent of Goldman, Sachs & Co., (1) offer, pledge, announce the intention to sell, grant any option, right or warrant to purchase, or otherwise transfer or dispose of, directly or indirectly, any shares of our common stock (including, without limitation, common stock which may be deemed to be beneficially owned by such directors, executive officers, managers and members in accordance with the rules and regulations of the SEC and securities which may be issued upon exercise of a stock option or warrant) or (2) enter into any swap or other agreement that transfers, in whole or in part, any of the economic consequences of ownership of the common stock, whether any such transaction described in clause (1) or (2) above is to be settled by delivery of common stock or such other securities, in cash or otherwise or (3) make any demand for or exercise any right with respect to the registration of any shares of Stock or any security convertible into or exercisable or exchangeable for Stock without the prior written consent of Goldman, Sachs & Co. Notwithstanding the foregoing, such persons may (i) transfer any shares of common stock as a bona fide gift or gifts, (ii) transfer any securities during the lock up period in accordance with the director’s or officer’s existing Rule 10b5-1 trading plans, (iii) enter into any new, or renew or amend any existing, Rule 10b5-1 trading plan, provided that in connection with the entry, renewal or amendment of such plan no shares of common stock shall be scheduled for sale thereunder during the lock up period and (iv) forfeit shares of common stock to us for the purposes of satisfying tax withholding obligations of the officer associated with the vesting of certain restricted stock awards granted pursuant to our 2006 Stock Incentive Plan. Under these Rule 10b5-1 trading plans, these individuals have contracted or will contract with brokers to buy or sell our securities on a periodic basis. Under these plans, a broker executes trades pursuant to the parameters established by the executive officer or director at the time of the creation of the plan, without further direction from them.
 
New York Stock Exchange
 
The shares are listed on the New York Stock Exchange under the symbol “CXO.”
 
Price Stabilization; Short Positions
 
Until the distribution of the shares is completed, SEC rules may limit underwriters and selling group members from bidding for and purchasing our common stock. However, the representative may engage in transactions that stabilize the price of the common stock, such as bids or purchases to peg, fix or maintain that price.
 
In connection with the offering, the underwriters may purchase and sell our common stock in the open market. These transactions may include short sales, purchases on the open market to cover positions created by short sales and stabilizing transactions. Short sales involve the sale by the underwriters of a greater number of shares than they are required to purchase in the offering. “Covered” short sales are sales made in an amount not greater than the underwriters’ option to purchase additional shares described above. The underwriters may close out any covered short position by either exercising their option to purchase additional shares or purchasing shares in the open market. In determining the source of shares to close out the covered short position, the underwriters will consider, among other things, the price of shares available for purchase in the open market as compared to the price at which they may purchase shares through the option to purchase additional shares. “Naked” short sales are sales in excess of the option to purchase additional shares. The


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underwriters must close out any naked short position by purchasing shares in the open market. A naked short position is more likely to be created if the underwriters are concerned that there may be downward pressure on the price of our common stock in the open market after pricing that could adversely affect investors who purchase in the offering. Stabilizing transactions consist of various bids for or purchases of shares of common stock made by the underwriters in the open market prior to the completion of the offering.
 
The underwriters may also impose a penalty bid. This occurs when a particular underwriter repays to the underwriters a portion of the underwriting discount received by it because the representative has repurchased shares sold by or for the account of such underwriter in stabilizing or short covering transactions.
 
Similar to other purchase transactions, the underwriters’ purchases to cover the syndicate short sales may have the effect of raising or maintaining the market price of our common stock or preventing or retarding a decline in the market price of our common stock. As a result, the price of our common stock may be higher than the price that might otherwise exist in the open market. The underwriters may conduct these transactions on the New York Stock Exchange, in the over-the-counter market or otherwise.
 
Neither we nor any of the underwriters make any representation or prediction as to the direction or magnitude of any effect that the transactions described above may have on the price of our common stock. In addition, neither we nor any of the underwriters make any representation that the representative will engage in these transactions or that these transactions, once commenced, will not be discontinued without notice.
 
Electronic Offer, Sale and Distribution of Shares
 
In connection with the offering, certain of the underwriters or securities dealers may distribute prospectuses by electronic means, such as e-mail. In addition, one or more of the underwriters may facilitate internet distribution for this offering to certain of its internet subscription customers. Such underwriters may allocate a limited number of shares for sale to its online brokerage customers. Other than the prospectus in electronic format, the information on the underwriters’ web sites is not part of this prospectus.
 
Notice to Prospective Investors in the EEA
 
In relation to each Member State of the European Economic Area which has implemented the Prospectus Directive (each, a “Relevant Member State”) an offer to the public of any shares which are the subject of the offering contemplated by this prospectus may not be made in that Relevant Member State, except that an offer to the public in that Relevant Member State of any shares may be made at any time under the following exemptions under the Prospectus Directive, if they have been implemented in that Relevant Member State:
 
(a) to legal entities which are authorized or regulated to operate in the financial markets or, if not so authorized or regulated, whose corporate purpose is solely to invest in securities;
 
(b) to any legal entity which has two or more of (1) an average of at least 250 employees during the last financial year; (2) a total balance sheet of more than €43,000,000 and (3) an annual net turnover of more than €50,000,000, as shown in its last annual or consolidated accounts;
 
(c) by the underwriters to fewer than 100 natural or legal persons (other than “qualified investors” as defined in the Prospectus Directive) subject to obtaining the prior consent of the representative for any such offer; or
 
(d) in any other circumstances falling within Article 3(2) of the Prospectus Directive;
 
provided that no such offer of shares shall result in a requirement for the publication by us or any representative of a prospectus pursuant to Article 3 of the Prospectus Directive.
 
Any person making or intending to make any offer of shares within the EEA should only do so in circumstances in which no obligation arises for us or any of the underwriters to produce a prospectus for such offer. Neither we nor the underwriters have authorized, nor do they authorize, the making of any offer of shares through any financial intermediary, other than offers made by the underwriters which constitute the final offering of shares contemplated in this prospectus.


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For the purposes of this provision, and your representation below, the expression an “offer to the public” in relation to any shares in any Relevant Member State means the communication in any form and by any means of sufficient information on the terms of the offer and any shares to be offered so as to enable an investor to decide to purchase any shares, as the same may be varied in that Relevant Member State by any measure implementing the Prospectus Directive in that Relevant Member State and the expression “Prospectus Directive” means Directive 2003/71/EC and includes any relevant implementing measure in each Relevant Member State.
 
Each person in a Relevant Member State who receives any communication in respect of, or who acquires any shares under, the offer of shares contemplated by this prospectus will be deemed to have represented, warranted and agreed to and with us and each underwriter that:
 
(A) it is a “qualified investor” within the meaning of the law in that Relevant Member State implementing Article 2(1)(e) of the Prospectus Directive; and
 
(B) in the case of any shares acquired by it as a financial intermediary, as that term is used in Article 3(2) of the Prospectus Directive, (i) the shares acquired by it in the offering have not been acquired on behalf of, nor have they been acquired with a view to their offer or resale to, persons in any Relevant Member State other than “qualified investors” (as defined in the Prospectus Directive), or in circumstances in which the prior consent of the representative has been given to the offer or resale; or (ii) where shares have been acquired by it on behalf of persons in any Relevant Member State other than qualified investors, the offer of those shares to it is not treated under the Prospectus Directive as having been made to such persons.
 
In addition, in the United Kingdom, this document is being distributed only to, and is directed only at, and any offer subsequently made may only be directed at persons who are “qualified investors” (as defined in the Prospectus Directive) (i) who have professional experience in matters relating to investments falling within Article 19 (5) of the Financial Services and Markets Act 2000 (Financial Promotion) Order 2005, as amended (the “Order”) and/or (ii) who are high net worth companies (or persons to whom it may otherwise be lawfully communicated) falling within Article 49(2)(a) to (d) of the Order (all such persons together being referred to as “relevant persons”). This document must not be acted on or relied on in the United Kingdom by persons who are not relevant persons. In the United Kingdom, any investment or investment activity to which this document relates is only available to, and will be engaged in with, relevant persons.
 
Notice to Prospective Investors in Switzerland
 
This document, as well as any other material relating to the shares which are the subject of the offering contemplated by this prospectus, do not constitute an issue prospectus pursuant to Article 652a and/or 1156 of the Swiss Code of Obligations. The shares will not be listed on the SIX Swiss Exchange and, therefore, the documents relating to the shares, including, but not limited to, this document, do not claim to comply with the disclosure standards of the listing rules of SIX Swiss Exchange and corresponding prospectus schemes annexed to the listing rules of the SIX Swiss Exchange. The shares are being offered in Switzerland by way of a private placement, i.e., to a small number of selected investors only, without any public offer and only to investors who do not purchase the shares with the intention to distribute them to the public. The investors will be individually approached by the issuer from time to time. This document, as well as any other material relating to the shares, is personal and confidential and do not constitute an offer to any other person. This document may only be used by those investors to whom it has been handed out in connection with the offering described herein and may neither directly nor indirectly be distributed or made available to other persons without express consent of the issuer. It may not be used in connection with any other offer and shall in particular not be copied and/or distributed to the public in (or from) Switzerland.
 
Notice to Prospective Investors in the Dubai International Financial Centre
 
This document relates to an exempt offer in accordance with the Offered Securities Rules of the Dubai Financial Services Authority. This document is intended for distribution only to persons of a type specified in those rules. It must not be delivered to, or relied on by, any other person. The Dubai Financial Services


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Authority has no responsibility for reviewing or verifying any documents in connection with exempt offers. The Dubai Financial Services Authority has not approved this document nor taken steps to verify the information set out in it, and has no responsibility for it. The shares which are the subject of the offering contemplated by this prospectus may be illiquid and/or subject to restrictions on their resale. Prospective purchasers of the shares offered should conduct their own due diligence on the shares. If you do not understand the contents of this document you should consult an authorised financial adviser.
 
Notice to Prospective Investors in Hong Kong
 
The shares may not be offered or sold by means of any document other than (i) in circumstances which do not constitute an offer to the public within the meaning of the Companies Ordinance (Cap.32, Laws of Hong Kong), or (ii) to “professional investors” within the meaning of the Securities and Futures Ordinance (Cap.571, Laws of Hong Kong) and any rules made thereunder, or (iii) in other circumstances which do not result in the document being a “prospectus” within the meaning of the Companies Ordinance (Cap.32, Laws of Hong Kong), and no advertisement, invitation or document relating to the shares may be issued or may be in the possession of any person for the purpose of issue (in each case whether in Hong Kong or elsewhere), which is directed at, or the contents of which are likely to be accessed or read by, the public in Hong Kong (except if permitted to do so under the laws of Hong Kong) other than with respect to shares which are or are intended to be disposed of only to persons outside Hong Kong or only to “professional investors” within the meaning of the Securities and Futures Ordinance (Cap. 571, Laws of Hong Kong) and any rules made thereunder.
 
Notice to Prospective Investors in Singapore
 
This prospectus has not been registered as a prospectus with the Monetary Authority of Singapore. Accordingly, this prospectus and any other document or material in connection with the offer or sale, or invitation for subscription or purchase, of the shares may not be circulated or distributed, nor may the shares be offered or sold, or be made the subject of an invitation for subscription or purchase, whether directly or indirectly, to persons in Singapore other than (i) to an institutional investor under Section 274 of the Securities and Futures Act, Chapter 289 of Singapore (the “SFA”), (ii) to a relevant person, or any person pursuant to Section 275(1A), and in accordance with the conditions, specified in Section 275 of the SFA or (iii) otherwise pursuant to, and in accordance with the conditions of, any other applicable provision of the SFA.
 
Where the shares are subscribed or purchased under Section 275 by a relevant person which is: (a) a corporation (which is not an accredited investor) the sole business of which is to hold investments and the entire share capital of which is owned by one or more individuals, each of whom is an accredited investor; or (b) a trust (where the trustee is not an accredited investor) whose sole purpose is to hold investments and each beneficiary is an accredited investor, shares, debentures and units of shares and debentures of that corporation or the beneficiaries’ rights and interest in that trust shall not be transferable for 6 months after that corporation or that trust has acquired the shares under Section 275 except: (1) to an institutional investor under Section 274 of the SFA or to a relevant person, or any person pursuant to Section 275(1A), and in accordance with the conditions, specified in Section 275 of the SFA; (2) where no consideration is given for the transfer; or (3) by operation of law.
 
Notice to Prospective Investors in Japan
 
The securities have not been and will not be registered under the Financial Instruments and Exchange Law of Japan (the Financial Instruments and Exchange Law) and each underwriter has agreed that it will not offer or sell any securities, directly or indirectly, in Japan or to, or for the benefit of, any resident of Japan (which term as used herein means any person resident in Japan, including any corporation or other entity organized under the laws of Japan), or to others for re-offering or resale, directly or indirectly, in Japan or to a resident of Japan, except pursuant to an exemption from the registration requirements of, and otherwise in compliance with, the Financial Instruments and Exchange Law and any other applicable laws, regulations and ministerial guidelines of Japan.


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CONFLICTS OF INTEREST
 
The underwriters and their respective affiliates are full service financial institutions engaged in various activities, which may include securities trading, commercial and investment banking, financial advisory, investment management, investment research, principal investment, hedging, financing and brokerage activities. Certain of the underwriters or their affiliates may perform various financial advisory, investment banking and commercial banking services from time to time for us and our affiliates under our credit facility. Specifically, Goldman Sachs Bank USA, an affiliate of Goldman, Sachs & Co., serves as a lender; Barclays Bank PLC, an affiliate of Barclays Capital Inc., serves as a lender; and JPMorgan Chase Bank, N.A., an affiliate of J.P. Morgan Securities LLC, serves as administrative agent, a lender, L/C issuer and swing line lender.
 
Amounts repaid under our credit facility may be reborrowed by us. In addition, from time to time, the underwriters and their affiliates may effect transactions for their own account or the account of customers, and hold on behalf of themselves or their customers, long or short positions in our debt or equity securities or loans, and may do so in the future. In the ordinary course of their various business activities, the underwriters and their respective affiliates may make or hold a broad array of investments and actively trade debt and equity securities (or related derivative securities) and financial instruments (including bank loans) for their own account and for the accounts of their customers. Such investment and securities activities may involve securities and instruments by us. The underwriters and their respective affiliates may also make investment recommendations and/or publish or express independent research views in respect of such securities or instruments and may at any time hold, or recommend to clients that they acquire, long and/or short positions in such securities and instruments.
 
We intend to use at least 5% of the net proceeds of this offering to repay indebtedness owed by us to certain affiliates of the underwriters who are lenders under our credit facility. See “Use of Proceeds.” Accordingly, this offering is being made in compliance with the requirements of NASD Conduct Rule 2720 of the Financial Industry Regulatory Authority. In accordance with that rule, no “qualified independent underwriter” is required, because a bona fide public market exists in the shares, as that term is defined in the rule. Goldman, Sachs & Co., Barclays Capital Inc. and J.P. Morgan Securities LLC will not confirm sales of the securities to any account over which they exercise discretionary authority without the prior written approval of the customer.


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LEGAL MATTERS
 
Certain legal matters in connection with the common stock will be passed upon by Vinson & Elkins L.L.P., Houston, Texas, as our counsel. Certain legal matters will be passed upon for the underwriters by Simpson Thacher & Bartlett LLP, New York, New York.
 
EXPERTS
 
The consolidated financial statements and management’s assessment of the effectiveness of internal control over financial reporting incorporated in this prospectus supplement by reference to the Annual Report on Form 10-K for the year ended December 31, 2009 have been so incorporated by reference in reliance upon the reports of Grant Thornton LLP, independent registered public accountants, upon the authority of said firm as experts in auditing and accounting in giving said reports.
 
The special-purpose combined financial statements of the Marbob Group as of December 31, 2009 and 2008, and for each of the years in the three-year period ended December 31, 2009 have been incorporated by reference herein in reliance upon the report of Grant Thornton LLP, independent registered public accountants, upon the authority of said firm as experts in auditing and accounting in giving said report.
 
Certain estimates of our net oil and natural gas reserves and related information included or incorporated by reference in this prospectus supplement have been derived from reports prepared by Cawley, Gillespie & Associates, Inc. and Netherland, Sewell & Associates, Inc. Certain estimates of the Marbob Group’s net oil and natural gas reserves and related information included or incorporated by reference in this prospectus supplement have been derived from reports prepared by Cawley, Gillespie & Associates, Inc. All such information has been so included or incorporated by reference on the authority of such firms as experts regarding the matters contained in their reports.


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PROSPECTUS
 
Concho Resources Inc.

Debt Securities
Preferred Stock
Common Stock
Depositary Shares
Warrants
 
 
Guarantee of Debt Securities of Concho Resources Inc. by:
COG Operating LLC
COG Realty LLC
Concho Energy Services LLC
Quail Ranch LLC
 
We may offer and sell the securities listed above from time to time in one or more offerings in one or more classes or series. Any debt securities we offer pursuant to this prospectus may be fully and unconditionally guaranteed by certain of our subsidiaries, including COG Operating LLC, COG Realty LLC, Concho Energy Services LLC, and Quail Ranch LLC.
 
This prospectus provides you with a general description of the securities that may be offered. Each time securities are offered, we will provide a prospectus supplement and attach it to this prospectus. The prospectus supplement will contain more specific information about the offering and the terms of the securities being offered, including any guarantees by our subsidiaries. A prospectus supplement may also add, update or change information contained in this prospectus. This prospectus may not be used to offer or sell securities without a prospectus supplement describing the method and terms of the offering.
 
We may sell these securities directly or through agents, underwriters or dealers, or through a combination of these methods. See “Plan of Distribution.” The prospectus supplement will list any agents, underwriters or dealers that may be involved and the compensation they will receive. The prospectus supplement will also show you the total amount of money that we will receive from selling the securities being offered, after the expenses of the offering. You should carefully read this prospectus and any accompanying prospectus supplement, together with the documents we incorporate by reference, before you invest in any of our securities.
 
Investing in any of our securities involves risk.  Please read carefully the information included and incorporated by reference in this prospectus and in any applicable prospectus supplement for a discussion of the factors you should consider before deciding to purchase our securities. See “Risk Factors” beginning on page 4 of this prospectus.
 
Our common stock is listed on the New York Stock Exchange under the symbol “CXO.”
 
Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.
 
This prospectus is dated September 9, 2009.


 

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You should rely only on the information contained in or incorporated by reference into this prospectus and any prospectus supplement. We have not authorized any dealer, salesman or other person to provide you with additional or different information. If anyone provides you with different or inconsistent information, you should not rely on it. This prospectus and any prospectus supplement are not an offer to sell or the solicitation of an offer to buy any securities other than the securities to which they relate and are not an offer to sell or the solicitation of an offer to buy securities in any jurisdiction to any person to whom it is unlawful to make an offer or solicitation in that jurisdiction. You should not assume that the information contained in this prospectus is accurate as of any date other than the date on the front cover of this prospectus, or that the information contained in any document incorporated by reference is accurate as of any date other than the date of the document incorporated by reference, regardless of the time of delivery of this prospectus or any sale of a security.


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ABOUT THIS PROSPECTUS
 
This prospectus is part of a registration statement that we filed with the Securities and Exchange Commission, which we refer to as the SEC, using a “shelf” registration process. Under this shelf registration process, we may offer and sell any combination of the securities described in this prospectus in one or more offerings. This prospectus provides you with a general description of the securities we may offer. Each time we sell securities, we will provide a prospectus supplement that will contain specific information about the terms of the offering and the offered securities. The prospectus supplement may also add, update or change information contained in this prospectus. Any statement that we make in this prospectus will be modified or superseded by any inconsistent statement made by us in a prospectus supplement. You should read both this prospectus and any prospectus supplement together with additional information described under the heading “Where You Can Find More Information.”
 
Unless the context requires otherwise or unless otherwise noted, all references in this prospectus or any accompanying prospectus supplement to “Concho,” “we” or “our” are to Concho Resources Inc. and its subsidiaries.
 
THE COMPANY
 
We are an independent oil and natural gas company engaged in the acquisition, development, exploitation and exploration of oil and natural gas properties. Our core operations are focused in the Permian Basin of Southeast New Mexico and West Texas. These core operating areas are complemented by activities in our emerging plays. We intend to grow our reserves and production through development drilling, exploitation and exploration activities on our multi-year project inventory and through acquisitions that meet our strategic and financial objectives.
 
We were formed in February 2006 as a result of the combination of Concho Equity Holdings Corp. and a portion of the oil and natural gas properties and related assets owned by Chase Oil Corporation and certain of its affiliates. Concho Equity Holdings Corp., which was subsequently merged into one of our wholly-owned subsidiaries, was formed in April 2004 and represented the third of three Permian Basin-focused companies that have been formed since 1997 by certain members of our current management team (the prior two companies were sold to large domestic independent oil and gas companies).
 
Our principal executive offices are located at 550 West Texas Avenue, Suite 100, Midland, Texas 79701. Our common stock is listed on the New York Stock Exchange under the symbol “CXO.”


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WHERE YOU CAN FIND MORE INFORMATION
 
We file annual, quarterly and current reports and other information with the SEC (File No. 001-33615) pursuant to the Securities Exchange Act of 1934 (the “Exchange Act”). You may read and copy any documents that are filed at the SEC’s public reference room at 100 F Street, N.E., Washington, D.C. 20549. You may also obtain copies of these documents at prescribed rates from the public reference section of the SEC at its Washington address. Please call the SEC at 1-800-SEC-0330 for further information.
 
Our filings are also available to the public through the SEC’s website at http://www.sec.gov.
 
The SEC allows us to “incorporate by reference” information that we file with it, which means that we can disclose important information to you by referring you to documents previously filed with the SEC. The information incorporated by reference is an important part of this prospectus, and the information that we later file with the SEC will automatically update and supersede this information. The following documents we filed with the SEC pursuant to the Exchange Act are incorporated herein by reference:
 
  •  our Annual Report on Form 10-K for the year ended December 31, 2008;
 
  •  our Quarterly Report on Form 10-Q for the quarter ended March 31, 2009;
 
  •  our Quarterly Report on Form 10-Q for the quarter ended June 30, 2009;
 
  •  our Current Reports on Form 8-K and 8-K/A filed on each of August 6, 2008, October 7, 2008, January 28, 2009, March 4, 2009, April 9, 2009, June 12, 2009, August 12, 2009 and September 9, 2009 (excluding any information furnished pursuant to Item 2.02 or Item 7.01 of any such Current Report on Form 8-K); and
 
  •  the description of our common stock contained in our registration statement on Form 8-A12B filed on July 23, 2007, including any amendment to that form that we may file in the future for the purpose of updating the description of our common stock.
 
These reports contain important information about us, our financial condition and our results of operations.
 
All future documents filed pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange Act (excluding any information furnished pursuant to Item 2.02 or Item 7.01 on any Current Report on Form 8-K) before the termination of each offering under this prospectus shall be deemed to be incorporated in this prospectus by reference and to be a part hereof from the date of filing of such documents. Any statement contained herein, or in a document incorporated or deemed to be incorporated by reference herein, shall be deemed to be modified or superseded for purposes of this prospectus to the extent that a statement contained herein or in any subsequently filed document that also is or is deemed to be incorporated by reference herein, modifies or supersedes such statement. Any such statement so modified or superseded shall not be deemed, except as so modified or superseded, to constitute a part of this prospectus.
 
You may request a copy of these filings at no cost by writing or telephoning us at the following address and telephone number:
Concho Resources Inc.
550 West Texas Avenue, Suite 100
Midland, Texas 79701
Attention: General Counsel
(432) 683-7443
 
We also maintain a website at http://www.conchoresources.com. However, the information on our website is not part of this prospectus.


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CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS
 
Various statements contained in or incorporated by reference into this prospectus, our filings with the SEC and our public releases, including those that express a belief, expectation, or intention, as well as those that are not statements of historical fact, are forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 (the “Securities Act”) and Section 21E of the Exchange Act. These forward-looking statements may include projections and estimates concerning capital expenditures, our liquidity and capital resources, the timing and success of specific projects, outcomes and effects of litigation, claims and disputes, elements of our business strategy and other statements concerning our operations, economic performance and financial condition. Forward-looking statements are generally accompanied by words such as “estimate,” “project,” “predict,” “believe,” “expect,” “anticipate,” “potential,” “could,” “may,” “foresee,” “plan,” “goal” or other words that convey the uncertainty of future events or outcomes. We have based these forward-looking statements on our current expectations and assumptions about future events. These statements are based on certain assumptions and analyses made by us in light of our experience and our perception of historical trends, current conditions and expected future developments as well as other factors we believe are appropriate under the circumstances. These forward-looking statements speak only as of the date of this prospectus; we disclaim any obligation to update or revise these statements unless required by securities law, and we caution you not to rely on them unduly. While our management considers these expectations and assumptions to be reasonable, they are inherently subject to significant business, economic, competitive, regulatory and other risks, contingencies and uncertainties relating to, among other matters, the risks discussed in our Annual Report on Form 10-K for the year ended December 31, 2008, our Quarterly Reports on Form 10-Q for the quarters ended March 31, 2009 and June 30, 2009 and our subsequent SEC filings, as well as those factors summarized below:
 
  •  our business and financial strategy;
 
  •  the estimated quantities of crude oil and natural gas reserves;
 
  •  our use of industry technology;
 
  •  our realized oil and natural gas prices;
 
  •  the timing and amount of the future production of our oil and natural gas;
 
  •  the amount, nature and timing of our capital expenditures;
 
  •  the drilling of our wells;
 
  •  our competition and government regulations;
 
  •  the marketing of our oil and natural gas;
 
  •  our exploitation activities or property acquisitions;
 
  •  the costs of exploiting and developing our properties and conducting other operations;
 
  •  general economic and business conditions;
 
  •  our cash flow and anticipated liquidity;
 
  •  hedging results;
 
  •  uncertainty regarding our future operating results;
 
  •  our plans, objectives, expectations and intentions contained in this prospectus that are not historical; and
 
  •  our ability to integrate acquisitions.
 
Reserve engineering is a process of estimating underground accumulations of oil and natural gas that cannot be measured in an exact way. The accuracy of any reserve estimate depends on the quality of available data, the interpretation of such data and price and cost assumptions made by our reserve engineers. In addition, the results of drilling, testing and production activities may justify revisions of estimates that were made previously. If significant, such revisions would change the schedule of any further production and development drilling. Accordingly, reserve estimates may differ from the quantities of oil and natural gas that are ultimately recovered.


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RISK FACTORS
 
An investment in our securities involves a significant degree of risk. Before you invest in our securities you should carefully consider those risk factors included in our most recent Annual Report on Form 10-K, any Quarterly Reports on Form 10-Q and any Current Reports on Form 8-K, which are incorporated herein by reference, and those risk factors that may be included in any applicable prospectus supplement, together with all of the other information included in this prospectus, any prospectus supplement and the documents we incorporate by reference, in evaluating an investment in our securities. If any of the risks discussed in the foregoing documents were to occur, our business, financial condition, results of operations and cash flows could be materially adversely affected. Please read “Cautionary Statement Regarding Forward-Looking Statements.”
 
RATIOS OF EARNINGS TO FIXED CHARGES AND EARNINGS TO FIXED CHARGES AND
PREFERRED STOCK DIVIDENDS
 
The following table contains our consolidated ratios of earnings to fixed charges and earnings to fixed charges and preferred stock dividends for the periods indicated.
 
                                                                 
    Concho Resources Inc.              
                                  Inception
    Chase Group
 
                                  (April 21,
    Properties  
    Six Months
    Years Ended
    2004) through
    Years Ended
 
    Ended June 30,
    December 31,     December 31,
    December 31,  
    2009     2008     2007     2006     2005     2004     2005     2004  
 
Ratios of earnings to fixed charges(a)
    (c )     15.36       2.00       1.97       2.01       (c )     NM(d )     NM(d )
Ratios of earnings to fixed charges and preferred stock dividends(b)
    (e )     15.36       2.00       1.90       (f )     (e )     NM(d )     NM(d )
 
 
(a) The ratio has been computed by dividing earnings by fixed charges. For purposes of computing the ratio:
 
earnings include income (loss) before income taxes, adjusted for interest expense and the portion of rental expense deemed to be representative of the interest component of rental expense; and
 
fixed charges consist of interest expense, capitalized interest and the portion of rental expense deemed to be representative of the interest component of rental expense.
 
(b) The ratio has been computed by dividing earnings by fixed charges and preferred stock dividends. For purposes of computing the ratio:
 
earnings include income (loss) before income taxes, adjusted for interest expense and the portion of rental expense deemed to be representative of the interest component of rental expense; and
 
fixed charges and preferred stock dividends consist of interest expense, capitalized interest, the portion of rental expense deemed to be representative of the interest component of rental expense and preferred stock dividends.
 
(c) Due to our net loss for the six months ended June 30, 2009 and from inception (April 21, 2004) through December 31, 2004, the ratio coverage was less than 1:1. To achieve ratio coverage of 1:1, we would have needed additional earnings of approximately $80.3 million and $3.6 million, respectively.
 
(d) Not meaningful, as there were no fixed charges or preferred stock dividends for these periods.
 
(e) Due to our net loss for the six months ended June 30, 2009 and from inception (April 21, 2004) through December 31, 2004, the ratio coverage was less than 1:1. To achieve a ratio coverage of 1:1, we would have needed additional earnings of approximately $80.3 million and $4.4 million, respectively.
 
(f) Due to the fixed charges and preferred stock dividends exceeding earnings for the period, we would have needed additional earnings of approximately $1.1 million to achieve a ratio coverage of 1:1.


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USE OF PROCEEDS
 
Except as may be stated in the applicable prospectus supplement, we intend to use the net proceeds from any sales of securities by us under this prospectus for general corporate purposes, which may include repayment or refinancing of borrowings, working capital, capital expenditures, investments and acquisitions. Pending any specific application, we may initially invest funds in short-term marketable securities or apply them to repayments of indebtedness.


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DESCRIPTION OF DEBT SECURITIES
 
The Debt Securities will be either our senior debt securities (“Senior Debt Securities”) or our subordinated debt securities (“Subordinated Debt Securities”). The Senior Debt Securities and the Subordinated Debt Securities will be issued under separate indentures among us, the Subsidiary Guarantors of such Debt Securities, if any, and a trustee to be determined (the “Trustee”). Senior Debt Securities will be issued under a “Senior Indenture” and Subordinated Debt Securities will be issued under a “Subordinated Indenture.” Together, the Senior Indenture and the Subordinated Indenture are called “Indentures.”
 
The Debt Securities may be issued from time to time in one or more series. The particular terms of each series that are offered by a prospectus supplement will be described in the prospectus supplement.
 
Unless the Debt Securities are guaranteed by our subsidiaries as described below, the rights of Concho and our creditors, including holders of the Debt Securities, to participate in the assets of any subsidiary upon the latter’s liquidation or reorganization, will be subject to the prior claims of the subsidiary’s creditors, except to the extent that we may ourself be a creditor with recognized claims against such subsidiary.
 
We have summarized selected provisions of the Indentures below. The summary is not complete. The form of each Indenture has been filed with the SEC as an exhibit to the registration statement of which this prospectus is a part, and you should read the Indentures for provisions that may be important to you. Capitalized terms used in the summary have the meanings specified in the Indentures.
 
General
 
The Indentures provide that Debt Securities in separate series may be issued thereunder from time to time without limitation as to aggregate principal amount. We may specify a maximum aggregate principal amount for the Debt Securities of any series. We will determine the terms and conditions of the Debt Securities, including the maturity, principal and interest, but those terms must be consistent with the Indenture. The Debt Securities will be our unsecured obligations.
 
The Subordinated Debt Securities will be subordinated in right of payment to the prior payment in full of all of our Senior Debt as described under “— Subordination of Subordinated Debt Securities” and in the prospectus supplement applicable to any Subordinated Debt Securities. If the prospectus supplement so indicates, the Debt Securities will be convertible into our common stock.
 
If specified in the prospectus supplement respecting a particular series of Debt Securities, certain subsidiaries of Concho (each a “Subsidiary Guarantor”) will fully and unconditionally guarantee (the “Subsidiary Guarantee”) that series as described under “— Subsidiary Guarantee” and in the prospectus supplement. Each Subsidiary Guarantee will be an unsecured obligation of the Subsidiary Guarantor. A Subsidiary Guarantee of Subordinated Debt Securities will be subordinated to the Senior Debt of the Subsidiary Guarantor on the same basis as the Subordinated Debt Securities are subordinated to our Senior Debt.
 
The applicable prospectus supplement will set forth the price or prices at which the Debt Securities to be issued will be offered for sale and will describe the following terms of such Debt Securities:
 
(1) the title of the Debt Securities;
 
(2) whether the Debt Securities are Senior Debt Securities or Subordinated Debt Securities and, if Subordinated Debt Securities, the related subordination terms;
 
(3) whether any Subsidiary Guarantor will provide a Subsidiary Guarantee of the Debt Securities;
 
(4) any limit on the aggregate principal amount of the Debt Securities;
 
(5) each date on which the principal of the Debt Securities will be payable;
 
(6) the interest rate that the Debt Securities will bear and the interest payment dates for the Debt Securities;


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(7) each place where payments on the Debt Securities will be payable;
 
(8) any terms upon which the Debt Securities may be redeemed, in whole or in part, at our option;
 
(9) any sinking fund or other provisions that would obligate us to redeem or otherwise repurchase the Debt Securities;
 
(10) the portion of the principal amount, if less than all, of the Debt Securities that will be payable upon declaration of acceleration of the Maturity of the Debt Securities;
 
(11) whether the Debt Securities are defeasible;
 
(12) any addition to or change in the Events of Default;
 
(13) whether the Debt Securities are convertible into our common stock and, if so, the terms and conditions upon which conversion will be effected, including the initial conversion price or conversion rate and any adjustments thereto and the conversion period;
 
(14) any addition to or change in the covenants in the Indenture applicable to the Debt Securities; and
 
(15) any other terms of the Debt Securities not inconsistent with the provisions of the Indenture.
 
Debt Securities, including any Debt Securities that provide for an amount less than the principal amount thereof to be due and payable upon a declaration of acceleration of the Maturity thereof (“Original Issue Discount Securities”), may be sold at a substantial discount below their principal amount. Special United States federal income tax considerations applicable to Debt Securities sold at an original issue discount may be described in the applicable prospectus supplement. In addition, special United States federal income tax or other considerations applicable to any Debt Securities that are denominated in a currency or currency unit other than United States dollars may be described in the applicable prospectus supplement.
 
Subordination of Subordinated Debt Securities
 
The indebtedness evidenced by the Subordinated Debt Securities will, to the extent set forth in the Subordinated Indenture with respect to each series of Subordinated Debt Securities, be subordinated in right of payment to the prior payment in full of all of our Senior Debt, including the Senior Debt Securities, and it may also be senior in right of payment to all of our Subordinated Debt. The prospectus supplement relating to any Subordinated Debt Securities will summarize the subordination provisions of the Subordinated Indenture applicable to that series including:
 
  •  the applicability and effect of such provisions upon any payment or distribution respecting that series following any liquidation, dissolution or other winding-up, or any assignment for the benefit of creditors or other marshalling of assets or any bankruptcy, insolvency or similar proceedings;
 
  •  the applicability and effect of such provisions in the event of specified defaults with respect to any Senior Debt, including the circumstances under which and the periods during which we will be prohibited from making payments on the Subordinated Debt Securities; and
 
  •  the definition of Senior Debt applicable to the Subordinated Debt Securities of that series and, if the series is issued on a senior subordinated basis, the definition of Subordinated Debt applicable to that series.
 
The prospectus supplement will also describe as of a recent date the approximate amount of Senior Debt to which the Subordinated Debt Securities of that series will be subordinated.
 
The failure to make any payment on any of the Subordinated Debt Securities by reason of the subordination provisions of the Subordinated Indenture described in the prospectus supplement will not be construed as preventing the occurrence of an Event of Default with respect to the Subordinated Debt Securities arising from any such failure to make payment.
 
The subordination provisions described above will not be applicable to payments in respect of the Subordinated Debt Securities from a defeasance trust established in connection with any legal defeasance or


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covenant defeasance of the Subordinated Debt Securities as described under “— Legal Defeasance and Covenant Defeasance.”
 
Subsidiary Guarantee
 
If specified in the prospectus supplement, one or more of the Subsidiary Guarantors will guarantee the Debt Securities of a series. Unless otherwise indicated in the prospectus supplement, the following provisions will apply to the Subsidiary Guarantee of the Subsidiary Guarantor.
 
Subject to the limitations described below and in the prospectus supplement, one or more of the Subsidiary Guarantors will jointly and severally, fully and unconditionally guarantee the punctual payment when due, whether at Stated Maturity, by acceleration or otherwise, of all our payment obligations under the Indentures and the Debt Securities of a series, whether for principal of, premium, if any, or interest on the Debt Securities or otherwise (all such obligations guaranteed by a Subsidiary Guarantor being herein called the “Guaranteed Obligations”). The Subsidiary Guarantors will also pay all expenses (including reasonable counsel fees and expenses) incurred by the applicable Trustee in enforcing any rights under a Subsidiary Guarantee with respect to a Subsidiary Guarantor.
 
In the case of Subordinated Debt Securities, a Subsidiary Guarantor’s Subsidiary Guarantee will be subordinated in right of payment to the Senior Debt of such Subsidiary Guarantor on the same basis as the Subordinated Debt Securities are subordinated to our Senior Debt. No payment will be made by any Subsidiary Guarantor under its Subsidiary Guarantee during any period in which payments by us on the Subordinated Debt Securities are suspended by the subordination provisions of the Subordinated Indenture.
 
Each Subsidiary Guarantee will be limited in amount to an amount not to exceed the maximum amount that can be guaranteed by the relevant Subsidiary Guarantor without rendering such Subsidiary Guarantee voidable under applicable law relating to fraudulent conveyance or fraudulent transfer or similar laws affecting the rights of creditors generally.
 
Each Subsidiary Guarantee will be a continuing guarantee and will:
 
(1) remain in full force and effect until either (a) payment in full of all the applicable Debt Securities (or such Debt Securities are otherwise satisfied and discharged in accordance with the provisions of the applicable Indenture) or (b) released as described in the following paragraph;
 
(2) be binding upon each Subsidiary Guarantor; and
 
(3) inure to the benefit of and be enforceable by the applicable Trustee, the Holders and their successors, transferees and assigns.
 
In the event that (a) a Subsidiary Guarantor ceases to be a Subsidiary, (b) either legal defeasance or covenant defeasance occurs with respect to the series or (c) all or substantially all of the assets or all of the Capital Stock of such Subsidiary Guarantor is sold, including by way of sale, merger, consolidation or otherwise, such Subsidiary Guarantor will be released and discharged of its obligations under its Subsidiary Guarantee without any further action required on the part of the Trustee or any Holder, and no other person acquiring or owning the assets or Capital Stock of such Subsidiary Guarantor will be required to enter into a Subsidiary Guarantee. In addition, the prospectus supplement may specify additional circumstances under which a Subsidiary Guarantor can be released from its Subsidiary Guarantee.
 
Form, Exchange and Transfer
 
The Debt Securities of each series will be issuable only in fully registered form, without coupons, and, unless otherwise specified in the applicable prospectus supplement, only in denominations of $1,000 and integral multiples thereof.
 
At the option of the Holder, subject to the terms of the applicable Indenture and the limitations applicable to Global Securities, Debt Securities of each series will be exchangeable for other Debt Securities of the same series of any authorized denomination and of a like tenor and aggregate principal amount.


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Subject to the terms of the applicable Indenture and the limitations applicable to Global Securities, Debt Securities may be presented for exchange as provided above or for registration of transfer (duly endorsed or with the form of transfer endorsed thereon duly executed) at the office of the Security Registrar or at the office of any transfer agent designated by us for such purpose. No service charge will be made for any registration of transfer or exchange of Debt Securities, but we may require payment of a sum sufficient to cover any tax or other governmental charge payable in that connection. Such transfer or exchange will be effected upon the Security Registrar or such transfer agent, as the case may be, being satisfied with the documents of title and identity of the person making the request. The Security Registrar and any other transfer agent initially designated by us for any Debt Securities will be named in the applicable prospectus supplement. We may at any time designate additional transfer agents or rescind the designation of any transfer agent or approve a change in the office through which any transfer agent acts, except that we will be required to maintain a transfer agent in each Place of Payment for the Debt Securities of each series.
 
If the Debt Securities of any series (or of any series and specified tenor) are to be redeemed in part, we will not be required to (1) issue, register the transfer of or exchange any Debt Security of that series (or of that series and specified tenor, as the case may be) during a period beginning at the opening of business 15 days before the day of mailing of a notice of redemption of any such Debt Security that may be selected for redemption and ending at the close of business on the day of such mailing or (2) register the transfer of or exchange any Debt Security so selected for redemption, in whole or in part, except the unredeemed portion of any such Debt Security being redeemed in part.
 
Global Securities
 
Some or all of the Debt Securities of any series may be represented, in whole or in part, by one or more Global Securities that will have an aggregate principal amount equal to that of the Debt Securities they represent. Each Global Security will be registered in the name of a Depositary or its nominee identified in the applicable prospectus supplement, will be deposited with such Depositary or nominee or its custodian and will bear a legend regarding the restrictions on exchanges and registration of transfer thereof referred to below and any such other matters as may be provided for pursuant to the applicable Indenture.
 
Notwithstanding any provision of the Indentures or any Debt Security described in this prospectus, no Global Security may be exchanged in whole or in part for Debt Securities registered, and no transfer of a Global Security in whole or in part may be registered, in the name of any Person other than the Depositary for such Global Security or any nominee of such Depositary unless:
 
(1) the Depositary has notified us that it is unwilling or unable to continue as Depositary for such Global Security or has ceased to be qualified to act as such as required by the applicable Indenture, and in either case we fail to appoint a successor Depositary within 90 days;
 
(2) an Event of Default with respect to the Debt Securities represented by such Global Security has occurred and is continuing and the Trustee has received a written request from the Depositary to issue certificated Debt Securities;
 
(3) subject to the rules of the Depositary, we shall have elected to terminate the book-entry system through the Depositary; or
 
(4) other circumstances exist, in addition to or in lieu of those described above, as may be described in the applicable prospectus supplement.
 
All certificated Debt Securities issued in exchange for a Global Security or any portion thereof will be registered in such names as the Depositary may direct.
 
As long as the Depositary, or its nominee, is the registered holder of a Global Security, the Depositary or such nominee, as the case may be, will be considered the sole owner and Holder of such Global Security and the Debt Securities that it represents for all purposes under the Debt Securities and the applicable Indenture. Except in the limited circumstances referred to above, owners of beneficial interests in a Global Security will not be entitled to have such Global Security or any Debt Securities that it represents registered in their names,


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will not receive or be entitled to receive physical delivery of certificated Debt Securities in exchange for those interests and will not be considered to be the owners or Holders of such Global Security or any Debt Securities that it represents for any purpose under the Debt Securities or the applicable Indenture. All payments on a Global Security will be made to the Depositary or its nominee, as the case may be, as the Holder of the security. The laws of some jurisdictions may require that some purchasers of Debt Securities take physical delivery of such Debt Securities in certificated form. These laws may impair the ability to transfer beneficial interests in a Global Security.
 
Ownership of beneficial interests in a Global Security will be limited to institutions that have accounts with the Depositary or its nominee (“participants”) and to persons that may hold beneficial interests through participants. In connection with the issuance of any Global Security, the Depositary will credit, on its book-entry registration and transfer system, the respective principal amounts of Debt Securities represented by the Global Security to the accounts of its participants. Ownership of beneficial interests in a Global Security will be shown only on, and the transfer of those ownership interests will be effected only through, records maintained by the Depositary (with respect to participants’ interests) or any such participant (with respect to interests of Persons held by such participants on their behalf). Payments, transfers, exchanges and other matters relating to beneficial interests in a Global Security may be subject to various policies and procedures adopted by the Depositary from time to time. None of us, the Subsidiary Guarantors, the Trustees or the agents of us, the Subsidiary Guarantors or the Trustees will have any responsibility or liability for any aspect of the Depositary’s or any participant’s records relating to, or for payments made on account of, beneficial interests in a Global Security, or for maintaining, supervising or reviewing any records relating to such beneficial interests.
 
Payment and Paying Agents
 
Unless otherwise indicated in the applicable prospectus supplement, payment of interest on a Debt Security on any Interest Payment Date will be made to the Person in whose name such Debt Security (or one or more Predecessor Securities) is registered at the close of business on the Regular Record Date for such interest.
 
Unless otherwise indicated in the applicable prospectus supplement, principal of and any premium and interest on the Debt Securities of a particular series will be payable at the office of such Paying Agent or Paying Agents as we may designate for such purpose from time to time, except that at our option payment of any interest on Debt Securities in certificated form may be made by check mailed to the address of the Person entitled thereto as such address appears in the Security Register. Unless otherwise indicated in the applicable prospectus supplement, the corporate trust office of the Trustee under the Senior Indenture in The City of New York will be designated as sole Paying Agent for payments with respect to Senior Debt Securities of each series, and the corporate trust office of the Trustee under the Subordinated Indenture in The City of New York will be designated as the sole Paying Agent for payment with respect to Subordinated Debt Securities of each series. Any other Paying Agents initially designated by us for the Debt Securities of a particular series will be named in the applicable prospectus supplement. We may at any time designate additional Paying Agents or rescind the designation of any Paying Agent or approve a change in the office through which any Paying Agent acts, except that we will be required to maintain a Paying Agent in each Place of Payment for the Debt Securities of a particular series.
 
All money paid by us to a Paying Agent for the payment of the principal of or any premium or interest on any Debt Security which remains unclaimed at the end of two years after such principal, premium or interest has become due and payable will be repaid to us, and the Holder of such Debt Security thereafter may look only to us for payment.


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Consolidation, Merger and Sale of Assets
 
Unless otherwise specified in the prospectus supplement, we may not consolidate with or merge into, or transfer, lease or otherwise dispose of all or substantially all of our assets to, any Person (a “successor Person”), and may not permit any Person to consolidate with or merge into us, unless:
 
(1) the successor Person (if not us) is a corporation, partnership, trust or other entity organized and validly existing under the laws of any domestic jurisdiction and assumes our obligations on the Debt Securities and under the Indentures;
 
(2) immediately before and after giving pro forma effect to the transaction, no Event of Default, and no event which, after notice or lapse of time or both, would become an Event of Default, has occurred and is continuing; and
 
(3) several other conditions, including any additional conditions with respect to any particular Debt Securities specified in the applicable prospectus supplement, are met.
 
The successor Person (if not us) will be substituted for us under the applicable Indenture with the same effect as if it had been an original party to such Indenture, and, except in the case of a lease, we will be relieved from any further obligations under such Indenture and the Debt Securities.
 
Events of Default
 
Unless otherwise specified in the prospectus supplement, each of the following will constitute an Event of Default under the applicable Indenture with respect to Debt Securities of any series:
 
(1) failure to pay principal of or any premium on any Debt Security of that series when due, whether or not, in the case of Subordinated Debt Securities, such payment is prohibited by the subordination provisions of the Subordinated Indenture;
 
(2) failure to pay any interest on any Debt Securities of that series when due, continued for 30 days, whether or not, in the case of Subordinated Debt Securities, such payment is prohibited by the subordination provisions of the Subordinated Indenture;
 
(3) failure to deposit any sinking fund payment, when due, in respect of any Debt Security of that series, whether or not, in the case of Subordinated Debt Securities, such deposit is prohibited by the subordination provisions of the Subordinated Indenture;
 
(4) failure to perform or comply with the provisions described under “— Consolidation, Merger and Sale of Assets”;
 
(5) failure to perform any of our other covenants in such Indenture (other than a covenant included in such Indenture solely for the benefit of a series other than that series), continued for 60 days after written notice has been given by the applicable Trustee, or the Holders of at least 25% in principal amount of the Outstanding Debt Securities of that series, as provided in such Indenture;
 
(6) any Debt of ourself, any Significant Subsidiary or, if a Subsidiary Guarantor has guaranteed the series, such Subsidiary Guarantor, is not paid within any applicable grace period after final maturity or is accelerated by its holders because of a default and the total amount of such Debt unpaid or accelerated exceeds $20.0 million;
 
(7) any judgment or decree for the payment of money in excess of $20.0 million is entered against us, any Significant Subsidiary or, if a Subsidiary Guarantor has guaranteed the series, such Subsidiary Guarantor, remains outstanding for a period of 60 consecutive days following entry of such judgment and is not discharged, waived or stayed;
 
(8) certain events of bankruptcy, insolvency or reorganization affecting us, any Significant Subsidiary or, if a Subsidiary Guarantor has guaranteed the series, such Subsidiary Guarantor; and


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(9) if any Subsidiary Guarantor has guaranteed such series, the Subsidiary Guarantee of any such Subsidiary Guarantor is held by a final non-appealable order or judgment of a court of competent jurisdiction to be unenforceable or invalid or ceases for any reason to be in full force and effect (other than in accordance with the terms of the applicable Indenture) or any Subsidiary Guarantor or any Person acting on behalf of any Subsidiary Guarantor denies or disaffirms such Subsidiary Guarantor’s obligations under its Subsidiary Guarantee (other than by reason of a release of such Subsidiary Guarantor from its Subsidiary Guarantee in accordance with the terms of the applicable Indenture).
 
If an Event of Default (other than an Event of Default with respect to Concho Resources Inc. described in clause (8) above) with respect to the Debt Securities of any series at the time Outstanding occurs and is continuing, either the applicable Trustee or the Holders of at least 25% in principal amount of the Outstanding Debt Securities of that series by notice as provided in the Indenture may declare the principal amount of the Debt Securities of that series (or, in the case of any Debt Security that is an Original Issue Discount Debt Security, such portion of the principal amount of such Debt Security as may be specified in the terms of such Debt Security) to be due and payable immediately, together with any accrued and unpaid interest thereon. If an Event of Default with respect to Concho Resources Inc. described in clause (8) above with respect to the Debt Securities of any series at the time Outstanding occurs, the principal amount of all the Debt Securities of that series (or, in the case of any such Original Issue Discount Security, such specified amount) will automatically, and without any action by the applicable Trustee or any Holder, become immediately due and payable, together with any accrued and unpaid interest thereon. After any such acceleration and its consequences, but before a judgment or decree based on acceleration, the Holders of a majority in principal amount of the Outstanding Debt Securities of that series may, under certain circumstances, rescind and annul such acceleration if all Events of Default with respect to that series, other than the non-payment of accelerated principal (or other specified amount), have been cured or waived as provided in the applicable Indenture. For information as to waiver of defaults, see “— Modification and Waiver” below.
 
Subject to the provisions of the Indentures relating to the duties of the Trustees in case an Event of Default has occurred and is continuing, no Trustee will be under any obligation to exercise any of its rights or powers under the applicable Indenture at the request or direction of any of the Holders, unless such Holders have offered to such Trustee reasonable security or indemnity. Subject to such provisions for the indemnification of the Trustees, the Holders of a majority in principal amount of the Outstanding Debt Securities of any series will have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or exercising any trust or power conferred on the Trustee with respect to the Debt Securities of that series.
 
No Holder of a Debt Security of any series will have any right to institute any proceeding with respect to the applicable Indenture, or for the appointment of a receiver or a trustee, or for any other remedy thereunder, unless:
 
(1) such Holder has previously given to the Trustee under the applicable Indenture written notice of a continuing Event of Default with respect to the Debt Securities of that series;
 
(2) the Holders of at least 25% in principal amount of the Outstanding Debt Securities of that series have made written request, and such Holder or Holders have offered reasonable security or indemnity, to the Trustee to institute such proceeding as trustee; and
 
(3) the Trustee has failed to institute such proceeding, and has not received from the Holders of a majority in principal amount of the Outstanding Debt Securities of that series a direction inconsistent with such request, within 60 days after such notice, request and offer.
 
However, such limitations do not apply to a suit instituted by a Holder of a Debt Security for the enforcement of payment of the principal of or any premium or interest on such Debt Security on or after the applicable due date specified in such Debt Security or, if applicable, to convert such Debt Security.
 
We will be required to furnish to each Trustee annually a statement by certain of our officers as to whether or not we, to their knowledge, are in default in the performance or observance of any of the terms, provisions and conditions of the applicable Indenture and, if so, specifying all such known defaults.


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Modification and Waiver
 
We may modify or amend an Indenture without the consent of any holders of the Debt Securities in certain circumstances, including:
 
(1) to evidence the succession under the Indenture of another Person to us or any Subsidiary Guarantor and to provide for its assumption of our or such Subsidiary Guarantor’s obligations to holders of Debt Securities;
 
(2) to make any changes that would add any additional covenants of us or the Subsidiary Guarantors for the benefit of the holders of Debt Securities or that do not adversely affect the rights under the Indenture of the Holders of Debt Securities in any material respect;
 
(3) to add any additional Events of Default;
 
(4) to provide for uncertificated notes in addition to or in place of certificated notes;
 
(5) to secure the Debt Securities;
 
(6) to establish the form or terms of any series of Debt Securities;
 
(7) to evidence and provide for the acceptance of appointment under the Indenture of a successor Trustee;
 
(8) to cure any ambiguity, defect or inconsistency;
 
(9) to add Subsidiary Guarantors; or
 
(10) in the case of any Subordinated Debt Security, to make any change in the subordination provisions that limits or terminates the benefits applicable to any Holder of Senior Debt.
 
Other modifications and amendments of an Indenture may be made by us, the Subsidiary Guarantors, if applicable, and the applicable Trustee with the consent of the Holders of not less than a majority in principal amount of the Outstanding Debt Securities of each series affected by such modification or amendment; provided, however, that no such modification or amendment may, without the consent of the Holder of each Outstanding Debt Security affected thereby:
 
(1) change the Stated Maturity of the principal of, or any installment of principal of or interest on, any Debt Security;
 
(2) reduce the principal amount of, or any premium or interest on, any Debt Security;
 
(3) reduce the amount of principal of an Original Issue Discount Security or any other Debt Security payable upon acceleration of the Maturity thereof;
 
(4) change the place or currency of payment of principal of, or any premium or interest on, any Debt Security;
 
(5) impair the right to institute suit for the enforcement of any payment due on or any conversion right with respect to any Debt Security;
 
(6) modify the subordination provisions in the case of Subordinated Debt Securities, or modify any conversion provisions, in either case in a manner adverse to the Holders of the Subordinated Debt Securities;
 
(7) except as provided in the applicable Indenture, release the Subsidiary Guarantee of a Subsidiary Guarantor;
 
(8) reduce the percentage in principal amount of Outstanding Debt Securities of any series, the consent of whose Holders is required for modification or amendment of the Indenture;
 
(9) reduce the percentage in principal amount of Outstanding Debt Securities of any series necessary for waiver of compliance with certain provisions of the Indenture or for waiver of certain defaults;
 
(10) modify such provisions with respect to modification, amendment or waiver; or


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(11) following the making of an offer to purchase Debt Securities from any Holder that has been made pursuant to a covenant in such Indenture, modify such covenant in a manner adverse to such Holder.
 
The Holders of not less than a majority in principal amount of the Outstanding Debt Securities of any series may waive compliance by us with certain restrictive provisions of the applicable Indenture. The Holders of not less than a majority in principal amount of the Outstanding Debt Securities of any series may waive any past default under the applicable Indenture, except a default in the payment of principal, premium or interest and certain covenants and provisions of the Indenture which cannot be amended without the consent of the Holder of each Outstanding Debt Security of such series.
 
Each of the Indentures provides that in determining whether the Holders of the requisite principal amount of the Outstanding Debt Securities have given or taken any direction, notice, consent, waiver or other action under such Indenture as of any date:
 
(1) the principal amount of an Original Issue Discount Security that will be deemed to be Outstanding will be the amount of the principal that would be due and payable as of such date upon acceleration of maturity to such date;
 
(2) if, as of such date, the principal amount payable at the Stated Maturity of a Debt Security is not determinable (for example, because it is based on an index), the principal amount of such Debt Security deemed to be Outstanding as of such date will be an amount determined in the manner prescribed for such Debt Security;
 
(3) the principal amount of a Debt Security denominated in one or more foreign currencies or currency units that will be deemed to be Outstanding will be the United States-dollar equivalent, determined as of such date in the manner prescribed for such Debt Security, of the principal amount of such Debt Security (or, in the case of a Debt Security described in clause (1) or (2) above, of the amount described in such clause); and
 
(4) certain Debt Securities, including those owned by us, any Subsidiary Guarantor or any of our other Affiliates, will not be deemed to be Outstanding.
 
Except in certain limited circumstances, we will be entitled to set any day as a record date for the purpose of determining the Holders of Outstanding Debt Securities of any series entitled to give or take any direction, notice, consent, waiver or other action under the applicable Indenture, in the manner and subject to the limitations provided in the Indenture. In certain limited circumstances, the Trustee will be entitled to set a record date for action by Holders. If a record date is set for any action to be taken by Holders of a particular series, only persons who are Holders of Outstanding Debt Securities of that series on the record date may take such action. To be effective, such action must be taken by Holders of the requisite principal amount of such Debt Securities within a specified period following the record date. For any particular record date, this period will be 180 days or such other period as may be specified by us (or the Trustee, if it set the record date), and may be shortened or lengthened (but not beyond 180 days) from time to time.
 
Satisfaction and Discharge
 
Each Indenture will be discharged and will cease to be of further effect as to all outstanding Debt Securities of any series issued thereunder, when:
 
(1) either:
 
(a) all outstanding Debt Securities of that series that have been authenticated (except lost, stolen or destroyed Debt Securities that have been replaced or paid and Debt Securities for whose payment money has theretofore been deposited in trust and thereafter repaid to us) have been delivered to the Trustee for cancellation; or
 
(b) all outstanding Debt Securities of that series that have been not delivered to the Trustee for cancellation have become due and payable or will become due and payable at their Stated Maturity within one year or are to be called for redemption within one year under arrangements satisfactory to the Trustee and in any case we have irrevocably deposited with the Trustee as trust funds money in an


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amount sufficient, without consideration of any reinvestment of interest, to pay the entire indebtedness of such Debt Securities not delivered to the Trustee for cancellation, for principal, premium, if any, and accrued interest to the Stated Maturity or redemption date;
 
(2) we have paid or caused to be paid all other sums payable by us under the Indenture with respect to the Debt Securities of that series; and
 
(3) we have delivered an Officers’ Certificate and an Opinion of Counsel to the Trustee stating that all conditions precedent to satisfaction and discharge of the Indenture with respect to the Debt Securities of that series have been satisfied.
 
Legal Defeasance and Covenant Defeasance
 
To the extent indicated in the applicable prospectus supplement, we may elect, at our option at any time, to have our obligations discharged under provisions relating to defeasance and discharge of indebtedness, which we call “legal defeasance,” or relating to defeasance of certain restrictive covenants applied to the Debt Securities of any series, or to any specified part of a series, which we call “covenant defeasance”.
 
Legal Defeasance.  The Indentures provide that, upon our exercise of our option (if any) to have the legal defeasance provisions applied to any series of Debt Securities, we and, if applicable, each Subsidiary Guarantor will be discharged from all our obligations, and, if such Debt Securities are Subordinated Debt Securities, the provisions of the Subordinated Indenture relating to subordination will cease to be effective, with respect to such Debt Securities (except for certain obligations to convert, exchange or register the transfer of Debt Securities, to replace stolen, lost or mutilated Debt Securities, to maintain paying agencies and to hold moneys for payment in trust) upon the deposit in trust for the benefit of the Holders of such Debt Securities of money or U.S. Government Obligations, or both, which, through the payment of principal and interest in respect thereof in accordance with their terms, will provide money in an amount sufficient (in the opinion of a nationally recognized firm of independent public accountants) to pay the principal of and any premium and interest on such Debt Securities on the respective Stated Maturities in accordance with the terms of the applicable Indenture and such Debt Securities. Such defeasance or discharge may occur only if, among other things:
 
(1) we have delivered to the applicable Trustee an Opinion of Counsel to the effect that we have received from, or there has been published by, the United States Internal Revenue Service a ruling, or there has been a change in tax law, in either case to the effect that Holders of such Debt Securities will not recognize gain or loss for federal income tax purposes as a result of such deposit and legal defeasance and will be subject to federal income tax on the same amount, in the same manner and at the same times as would have been the case if such deposit and legal defeasance were not to occur;
 
(2) no Event of Default or event that with the passing of time or the giving of notice, or both, shall constitute an Event of Default shall have occurred and be continuing at the time of such deposit or, with respect to any Event of Default described in clause (8) under “— Events of Default,” at any time until 121 days after such deposit;
 
(3) such deposit and legal defeasance will not result in a breach or violation of, or constitute a default under, any agreement or instrument (other than the applicable Indenture) to which we are a party or by which we are bound;
 
(4) in the case of Subordinated Debt Securities, at the time of such deposit, no default in the payment of all or a portion of principal of (or premium, if any) or interest on any Senior Debt shall have occurred and be continuing, no event of default shall have resulted in the acceleration of any Senior Debt and no other event of default with respect to any Senior Debt shall have occurred and be continuing permitting after notice or the lapse of time, or both, the acceleration thereof; and
 
(5) we have delivered to the Trustee an Opinion of Counsel to the effect that such deposit shall not cause the Trustee or the trust so created to be subject to the Investment Company Act of 1940.


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Covenant Defeasance.  The Indentures provide that, upon our exercise of our option (if any) to have the covenant defeasance provisions applied to any Debt Securities, we may fail to comply with certain restrictive covenants (but not with respect to conversion, if applicable), including those that may be described in the applicable prospectus supplement, and the occurrence of certain Events of Default, which are described above in clause (5) (with respect to such restrictive covenants) and clauses (6), (7) and (9) under “Events of Default” and any that may be described in the applicable prospectus supplement, will not be deemed to either be or result in an Event of Default and, if such Debt Securities are Subordinated Debt Securities, the provisions of the Subordinated Indenture relating to subordination will cease to be effective, in each case with respect to such Debt Securities. In order to exercise such option, we must deposit, in trust for the benefit of the Holders of such Debt Securities, money or U.S. Government Obligations, or both, which, through the payment of principal and interest in respect thereof in accordance with their terms, will provide money in an amount sufficient (in the opinion of a nationally recognized firm of independent public accountants) to pay the principal of and any premium and interest on such Debt Securities on the respective Stated Maturities in accordance with the terms of the applicable Indenture and such Debt Securities. Such covenant defeasance may occur only if we have delivered to the applicable Trustee an Opinion of Counsel to the effect that Holders of such Debt Securities will not recognize gain or loss for federal income tax purposes as a result of such deposit and covenant defeasance and will be subject to federal income tax on the same amount, in the same manner and at the same times as would have been the case if such deposit and covenant defeasance were not to occur, and the requirements set forth in clauses (2), (3), (4) and (5) above are satisfied. If we exercise this option with respect to any series of Debt Securities and such Debt Securities were declared due and payable because of the occurrence of any Event of Default, the amount of money and U.S. Government Obligations so deposited in trust would be sufficient to pay amounts due on such Debt Securities at the time of their respective Stated Maturities but may not be sufficient to pay amounts due on such Debt Securities upon any acceleration resulting from such Event of Default. In such case, we would remain liable for such payments.
 
If we exercise either our legal defeasance or covenant defeasance option, any Subsidiary Guarantee will terminate.
 
No Personal Liability of Directors, Officers, Employees and Stockholders
 
No director, officer, employee, incorporator, stockholder, member, partner or trustee of the Company or any Subsidiary Guarantor, as such, shall have any liability for any obligations of the Company or any Subsidiary Guarantor under the Debt Securities, the Indentures or any Subsidiary Guarantees or for any claim based on, in respect of, or by reason of, such obligations or their creation. By accepting a Debt Security, each Holder shall be deemed to have waived and released all such liability. The waiver and release shall be a part of the consideration for the issue of the Debt Securities. The waiver may not be effective to waive liabilities under the federal securities laws, and it is the view of the SEC that such a waiver is against public policy.
 
Notices
 
Notices to Holders of Debt Securities will be given by mail to the addresses of such Holders as they may appear in the Security Register.
 
Title
 
We, the Subsidiary Guarantors, the Trustees and any agent of us, the Subsidiary Guarantors or a Trustee may treat the Person in whose name a Debt Security is registered as the absolute owner of the Debt Security (whether or not such Debt Security may be overdue) for the purpose of making payment and for all other purposes.
 
Governing Law
 
The Indentures and the Debt Securities will be governed by, and construed in accordance with, the law of the State of New York.


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The Trustee
 
We will enter into the Indentures with a Trustee that is qualified to act under the Trust Indenture Act of 1939, as amended, and with any other Trustees chosen by us and appointed in a supplemental indenture for a particular series of Debt Securities. We may maintain a banking relationship in the ordinary course of business with our Trustee and one or more of its affiliates.
 
Resignation or Removal of Trustee.  If the Trustee has or acquires a conflicting interest within the meaning of the Trust Indenture Act, the Trustee must either eliminate its conflicting interest or resign, to the extent and in the manner provided by, and subject to the provisions of, the Trust Indenture Act and the applicable Indenture. Any resignation will require the appointment of a successor Trustee under the applicable Indenture in accordance with the terms and conditions of such Indenture.
 
The Trustee may resign or be removed by us with respect to one or more series of Debt Securities and a successor Trustee may be appointed to act with respect to any such series. The holders of a majority in aggregate principal amount of the Debt Securities of any series may remove the Trustee with respect to the Debt Securities of such series.
 
Limitations on Trustee if It Is Our Creditor.  Each Indenture will contain certain limitations on the right of the Trustee, in the event that it becomes our creditor, to obtain payment of claims in certain cases, or to realize on certain property received in respect of any such claim as security or otherwise.
 
Certificates and Opinions to Be Furnished to Trustee.  Each Indenture will provide that, in addition to other certificates or opinions that may be specifically required by other provisions of an Indenture, every application by us for action by the Trustee must be accompanied by an Officers’ Certificate and an Opinion of Counsel stating that, in the opinion of the signers, all conditions precedent to such action have been complied with by us.


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DESCRIPTION OF CAPITAL STOCK
 
The following summary of our capital stock, Restated Certificate of Incorporation (the “Certificate of Incorporation”) and Amended and Restated Bylaws (the “Bylaws”) does not purport to be complete and is qualified in its entirety by reference to the provisions of applicable law and to our Certificate of Incorporation and Bylaws.
 
Our authorized capital stock consists of 300,000,000 shares of common stock, $0.001 par value per share, and 10,000,000 shares of preferred stock, $0.001 par value per share.
 
Common Stock
 
As of September 1, 2009, we had 85,562,638 shares of voting common stock outstanding, including 467,692 shares of restricted stock. The shares of restricted stock have voting rights, rights to receive dividends and are subject to certain forfeiture restrictions.
 
Our common stock commenced trading on the NYSE under the symbol “CXO” on August 3, 2007 in connection with our initial public offering. As of September 1, 2009, there were 41,941 holders of record of our common stock.
 
Holders of our common stock are entitled to one vote for each share held on all matters submitted to a vote of stockholders and do not have cumulative voting rights. Accordingly, holders of a majority of the shares of our common stock entitled to vote in any election of directors may elect all of the directors standing for election.
 
Holders of our common stock are entitled to receive proportionately any dividends if and when such dividends are declared by our board of directors, subject to any preferential dividend rights of preferred stock that may be outstanding at the time such dividends are declared. Upon the liquidation, dissolution or winding up of our company, the holders of our common stock are entitled to receive ratably our net assets available after the payment of all debts and other liabilities and subject to the prior rights of any outstanding preferred stock. Holders of our common stock have no preemptive, subscription, redemption or conversion rights. The rights, preferences and privileges of holders of our common stock are subject to, and may be adversely affected by, the rights of the holders of shares of any series of preferred stock that we may designate and issue in the future.
 
We have not paid, and do not intend to pay in the foreseeable future, cash dividends on our common stock.
 
There are no redemption or sinking fund provisions applicable to our common stock. All outstanding shares of our common stock are fully paid and non-assessable.
 
Preferred Stock
 
Under the terms of our Certificate of Incorporation, our board of directors is authorized to designate and issue shares of preferred stock in one or more series without further vote or action by our stockholders. Our board of directors has the discretion to determine the rights, preferences, privileges and restrictions, including voting rights, dividend rights, conversion rights, redemption privileges and liquidation preferences, of each series of preferred stock. It is not possible to state the actual effect of the issuance of any shares of preferred stock upon the rights of holders of the common stock until the board of directors determines the specific rights of the holders of the preferred stock. However, these effects might include:
 
  •  restricting dividends on the common stock;
 
  •  diluting the voting power of the common stock;
 
  •  impairing the liquidation rights of the common stock; and
 
  •  delaying or preventing a change in control of our company.


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We currently have no shares of preferred stock outstanding, and we have no present plans to issue any shares of preferred stock.
 
Anti-Takeover Provisions of Our Certificate of Incorporation and Bylaws
 
Our Certificate of Incorporation and Bylaws contain several provisions that could delay or make more difficult the acquisition of us through a hostile tender offer, open market purchases, proxy contest, merger or other takeover attempt that a stockholder might consider in his or her best interest, including those attempts that might result in a premium over the market price of our common stock.
 
Written Consent of Stockholders
 
Our Certificate of Incorporation and Bylaws provide that any action required or permitted to be taken by our stockholders must be taken at a duly called meeting of stockholders and not by written consent.
 
Special Meetings of Stockholders
 
Subject to the rights of the holders of any series of preferred stock, our Bylaws provide that special meetings of the stockholders may only be called by the chairman of the board of directors or by the resolution of our board of directors approved by a majority of the total number of authorized directors. No business other than that stated in a notice may be transacted at any special meeting.
 
Advance Notice Procedure for Director Nominations and Stockholder Proposals
 
Our Bylaws provide that adequate notice must be given to nominate candidates for election as directors or to make proposals for consideration at annual meetings of our stockholders. For nominations or other business to be properly brought before an annual meeting by a stockholder, the stockholder must have delivered a written notice to the Secretary of our company at our principal executive offices not less than 45 calendar days nor more than 75 calendar days prior to the first anniversary of the date on which we first mailed our proxy materials for the preceding year’s annual meeting; provided, however, that in the event that the date of the annual meeting is more than 30 calendar days before or more than 30 calendar days after the first anniversary of the date of the preceding year’s annual meeting notice by the stockholder to be timely must be so delivered not later than the close of business on the later of the 90th calendar day prior to such annual meeting or the 10th calendar day following the calendar day on which public announcement, if any, of the date of such meeting is first made by us.
 
Nominations of persons for election to our board of directors may be made at a special meeting of stockholders at which directors are to be elected pursuant to our notice of meeting (i) by or at the direction of our board of directors, or (ii) by any stockholder of our company who is a stockholder of record at the time of the giving of notice of the meeting, who is entitled to vote at the meeting and who complies with the notice procedures set forth in our Bylaws. In the event we call a special meeting of stockholders for the purpose of electing one or more directors to our board of directors, any stockholder may nominate a person or persons (as the case may be) for election to such position(s) if the stockholder provides written notice to the Secretary of our company at our principal executive offices not earlier than the close of business on the 90th calendar day prior to such special meeting, nor later than the close of business on the later of the 70th calendar day prior to such special meeting or the 10th calendar day following the day on which public announcement, if any, is first made of the date of the special meeting and of the nominees proposed by our board of directors to be elected at such meeting.
 
These procedures may operate to limit the ability of stockholders to bring business before a stockholders meeting, including the nomination of directors and the consideration of any transaction that could result in a change in control and that may result in a premium to our stockholders


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Classified Board
 
Our Certificate of Incorporation divides our directors into three classes serving staggered three-year terms. As a result, stockholders will elect approximately one-third of the board of directors each year. This provision, when coupled with provisions of our Certificate of Incorporation authorizing only the board of directors to fill vacant or newly created directorships or increase the size of the board of directors and provisions providing that directors may only be removed for cause and then only by the holders of not less than 662/3% of the voting power of all outstanding voting stock, may deter a stockholder from gaining control of our board of directors by removing incumbent directors or increasing the number of directorships and simultaneously filling the vacancies or newly created directorships with its own nominees.
 
Authorized Capital Stock
 
Our Certificate of Incorporation contains provisions that the authorized but unissued shares of common stock and preferred stock are available for future issuance, subject to various limitations imposed by the New York Stock Exchange. These additional shares may be utilized for a variety of corporate purposes, including public offerings to raise capital, corporate acquisitions and employee benefit plans. The existence of authorized but unissued shares of common stock and preferred stock could make it more difficult or discourage an attempt to obtain control of our company by means of a proxy contest, tender offer, merger or otherwise.
 
Amendment of Bylaws
 
Under Delaware law, the power to adopt, amend or repeal bylaws is conferred upon the stockholders. A corporation may, however, in its certificate of incorporation also confer upon the board of directors the power to adopt, amend or repeal its bylaws. Our Certificate of Incorporation and Bylaws grant our board of directors the power to adopt, amend and repeal our Bylaws on the affirmative vote of a majority of the directors then in office. Our stockholders may adopt, amend or repeal our Bylaws but only at any regular or special meeting of stockholders by the holders of not less than 662/3% of the voting power of all outstanding voting stock.
 
Certain Oil and Natural Gas Opportunities
 
Certain of our stockholders who received shares of common stock in the combination transaction and our non-employee directors may from time to time have investments in other exploration and production companies that may compete with us. Our certificate of incorporation and our Business Opportunities Agreement provide a safe harbor under which these entities and directors may participate in the oil and gas exploration, exploitation, development and production business without breaching their fiduciary duties as controlling stockholders or directors. No participation is allowed with respect to:
 
  •  any business opportunity that is brought to the attention of a covered individual or entity solely in such person’s capacity as a director or officer of our company and with respect to which, at the time of such presentment, no other covered individual or entity has independently received notice or otherwise identified such opportunity; or
 
  •  any business opportunity that is identified by a covered individual or entity solely through the disclosure of information by or on behalf of us.
 
The covered individuals and entities have no obligation to offer such opportunities to us, but interested directors are required to disclose conflicts of interest. We are not prohibited from pursuing any business opportunity with respect to which we have renounced any interest.
 
Limitation of Liability of Directors
 
Our Certificate of Incorporation provides that no director shall be personally liable to us or our stockholders for monetary damages for breach of fiduciary duty as a director, except for liability as follows:
 
  •  for any breach of the director’s duty of loyalty to us or our stockholders;


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  •  for acts or omissions not in good faith or which involve intentional misconduct or a knowing violation of laws;
 
  •  for unlawful payment of a dividend or unlawful stock purchase or stock redemption; and
 
  •  for any transaction from which the director derived an improper personal benefit.
 
The effect of these provisions is to eliminate our rights and our stockholders’ rights, through stockholders’ derivative suits on our behalf, to recover monetary damages against a director for a breach of fiduciary duty as a director, including breaches resulting from grossly negligent behavior, except in the situations described above.
 
Delaware Takeover Statute
 
We are subject to Section 203 of the Delaware General Corporation Law, which prohibits a Delaware corporation from engaging in any business combination with any interested stockholder for a period of three years after the date that such stockholder became an interested stockholder, with the following exceptions:
 
  •  before such date, the board of directors of the corporation approved either the business combination or the transaction that resulted in the stockholder becoming an interested stockholder
 
  •  upon completion of the transaction that resulted in the stockholder becoming an interested stockholder, the interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction began, excluding for purposes of determining the voting stock outstanding (but not the outstanding voting stock owned by the interested stockholder) those shares owned (1) by persons who are directors and also officers and (2) employee stock plans in which employee participants do not have the right to determine confidentially whether shares held subject to the plan will be tendered in a tender or exchange offer; or
 
  •  on or after such date, the business combination is approved by the board of directors and authorized at an annual or special meeting of the stockholders, and not by written consent, by the affirmative vote of at least 662/3% of the outstanding voting stock that is not owned by the interested stockholder.
 
In general, Section 203 defines a business combination to include the following:
 
  •  any merger or consolidation involving the corporation and the interested stockholder;
 
  •  any sale, transfer, pledge or other disposition (in one transaction or a series of transactions) of 10% or more of the assets of the corporation involving the interested stockholder;
 
  •  subject to certain exceptions, any transaction that results in the issuance or transfer by the corporation of any stock of the corporation to the interested stockholder;
 
  •  any transaction involving the corporation that has the effect of increasing the proportionate share of the stock or any class or series of the corporation beneficially owned by the interested stockholder; or
 
  •  the receipt by the interested stockholder of the benefit of any loss, advances, guarantees, pledges or other financial benefits by or through the corporation.
 
In general, Section 203 defines an “interested stockholder” as an entity or person who, together with the person’s affiliates and associates, beneficially owns, or within three years prior to the time of determination of interested stockholder status did own, 15% or more of the outstanding voting stock of the corporation.
 
Transfer Agent and Registrar
 
The transfer agent and registrar for our common stock is American Stock Transfer & Trust Company.


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DESCRIPTION OF WARRANTS
 
We may issue warrants for the purchase of our common stock. Warrants may be issued independently or together with Debt Securities, preferred stock or common stock offered by any prospectus supplement and may be attached to or separate from any such offered securities. Each series of warrants will be issued under a separate warrant agreement to be entered into between us and a bank or trust company, as warrant agent, all as set forth in the prospectus supplement relating to the particular issue of warrants. The warrant agent will act solely as our agent in connection with the warrants and will not assume any obligation or relationship of agency or trust for or with any holders of warrants or beneficial owners of warrants. The following summary of certain provisions of the warrants does not purport to be complete and is subject to, and is qualified in its entirety by reference to, all provisions of the warrant agreements.
 
You should refer to the prospectus supplement relating to a particular issue of warrants for the terms of and information relating to the warrants, including, where applicable:
 
  (1)  the number of shares of common stock purchasable upon exercise of the warrants and the price at which such number of shares of common stock may be purchased upon exercise of the warrants;
 
  (2)  the date on which the right to exercise the warrants commences and the date on which such right expires (the “Expiration Date”);
 
  (3)  United States federal income tax consequences applicable to the warrants;
 
  (4)  the amount of the warrants outstanding as of the most recent practicable date; and
 
  (5)  any other terms of the warrants.
 
Warrants will be offered and exercisable for United States dollars only. Warrants will be issued in registered form only. Each warrant will entitle its holder to purchase such number of shares of common stock at such exercise price as is in each case set forth in, or calculable from, the prospectus supplement relating to the warrants. The exercise price may be subject to adjustment upon the occurrence of events described in such prospectus supplement. After the close of business on the Expiration Date (or such later date to which we may extend such Expiration Date), unexercised warrants will become void. The place or places where, and the manner in which, warrants may be exercised will be specified in the prospectus supplement relating to such warrants.
 
Prior to the exercise of any warrants, holders of the warrants will not have any of the rights of holders of common stock, including the right to receive payments of any dividends on the common stock purchasable upon exercise of the warrants, or to exercise any applicable right to vote.


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PLAN OF DISTRIBUTION
 
We may sell the offered securities in and outside the United States (1) through underwriters or dealers, (2) directly to purchasers, including our affiliates and stockholders, (3) through agents or (4) through a combination of any of these methods. The prospectus supplement will include the following information:
 
  •  the terms of the offering;
 
  •  the names of any underwriters or agents;
 
  •  the name or names of any managing underwriter or underwriters;
 
  •  the purchase price of the securities;
 
  •  the estimated net proceeds to us from the sale of the securities;
 
  •  any delayed delivery arrangements;
 
  •  any underwriting discounts, commissions and other items constituting underwriters’ compensation;
 
  •  any discounts or concessions allowed or reallowed or paid to dealers; and
 
  •  any commissions paid to agents.
 
Sale Through Underwriters or Dealers
 
If underwriters are used in the sale, the underwriters will acquire the securities for their own account for resale to the public, either on a firm commitment basis or a best efforts basis. The underwriters may resell the securities from time to time in one or more transactions, including negotiated transactions, at a fixed public offering price or at varying prices determined at the time of sale. Underwriters may offer securities to the public either through underwriting syndicates represented by one or more managing underwriters or directly by one or more firms acting as underwriters. Unless we inform you otherwise in the prospectus supplement, the obligations of the underwriters to purchase the securities will be subject to certain conditions. The underwriters may change from time to time any offering price and any discounts or concessions allowed or reallowed or paid to dealers.
 
During and after an offering through underwriters, the underwriters may purchase and sell the securities in the open market. These transactions may include overallotment and stabilizing transactions and purchases to cover syndicate short positions created in connection with the offering. The underwriters may also impose a penalty bid, which means that selling concessions allowed to syndicate members or other broker-dealers for the offered securities sold for their account may be reclaimed by the syndicate if the offered securities are repurchased by the syndicate in stabilizing or covering transactions. These activities may stabilize, maintain or otherwise affect the market price of the offered securities, which may be higher than the price that might otherwise prevail in the open market. If commenced, the underwriters may discontinue these activities at any time.
 
If dealers are used, we will sell the securities to them as principals. The dealers may then resell those securities to the public at varying prices determined by the dealers at the time of resale. We will include in the prospectus supplement the names of the dealers and the terms of the transaction.
 
Direct Sales and Sales Through Agents
 
We may sell the securities directly. In this case, no underwriters or agents would be involved. We may also sell the securities through agents designated from time to time. In the prospectus supplement, we will name any agent involved in the offer or sale of the offered securities, and we will describe any commissions payable to the agent. Unless we inform you otherwise in the prospectus supplement, any agent will agree to use its reasonable best efforts to solicit purchases for the period of its appointment.


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We may sell the securities directly to institutional investors or others who may be deemed to be underwriters within the meaning of the Securities Act with respect to any sale of securities. We will describe the terms of any such sales in the prospectus supplement.
 
Remarketing Arrangements
 
Offered securities may also be offered and sold, if so indicated in the applicable prospectus supplement, in connection with a remarketing upon their purchase, in accordance with a redemption or repayment pursuant to their terms, or otherwise, by one or more remarketing firms, acting as principals for their own accounts or as agents for us. Any remarketing firm will be identified and the terms of its agreements, if any, with us and its compensation will be described in the applicable prospectus supplement. Remarketing firms may be deemed to be underwriters, as that term is defined in the Securities Act, in connection with the securities remarketed.
 
Delayed Delivery Contracts
 
If we so indicate in the prospectus supplement, we may authorize agents, underwriters or dealers to solicit offers from certain types of institutions to purchase securities from us at the public offering price under delayed delivery contracts. These contracts would provide for payment and delivery on a specified date in the future. The contracts would be subject only to those conditions described in the prospectus supplement. The prospectus supplement will describe the commission payable for solicitation of those contracts.
 
General Information
 
We may have agreements with the agents, dealers, underwriters and remarketing firms to indemnify them against certain civil liabilities, including liabilities under the Securities Act, or to contribute with respect to payments that the agents, dealers, underwriters or remarketing firms may be required to make. Agents, dealers, underwriters and remarketing firms may be customers of, engage in transactions with, or perform services for us in the ordinary course of their businesses.
 
LEGAL MATTERS
 
Certain legal matters in connection with the securities will be passed upon by Vinson & Elkins L.L.P., Houston, Texas, as our counsel. Any underwriter or agent will be advised about other issues relating to any offering by its own legal counsel.
 
EXPERTS
 
The (i) consolidated financial statements of Concho Resources Inc. and subsidiaries incorporated in this prospectus by reference to our Annual Report on Form 10-K for the year ended December 31, 2008, retrospectively adjusted by our Current Report on Form 8-K filed on September 9, 2009 and (ii) management’s assessment of the effectiveness of internal control over financial reporting incorporated in this prospectus by reference to our Annual Report on Form 10-K for the year ended December 31, 2008 have been so incorporated by reference in reliance upon the reports of Grant Thornton LLP, independent registered public accountants, upon the authority of said firm as experts in auditing and accounting in giving said reports.
 
The special-purpose combined financial statements of the Henry Group Properties as of December 31, 2007 and 2006, and for each of the years in the three-year period ended December 31, 2007 incorporated in this prospectus by reference to the Current Reports on Form 8-K filed on August 6, 2008 and October 7, 2008 have been so incorporated by reference in reliance upon the report of Davis, Kinard & Co., P.C., independent registered public accounting firm, upon the authority of said firm as experts in accounting and auditing.
 
Certain estimates of our net crude oil and natural gas reserves and related information included or incorporated by reference in this prospectus have been derived from reports prepared by Cawley, Gillespie & Associates, Inc. and Netherland, Sewell & Associates, Inc. All such information has been so included or incorporated by reference on the authority of such firms as experts regarding the matters contained in their reports.


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(CONCHO LOGO)