SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. 1)*
CABOT CORPORATION
(Name of Issuer)
COMMON STOCK, PAR VALUE $1.00 PER SHARE
(Title of Class of Securities)
127055101
(CUSIP Number)
SPO Advisory Corp.
591 Redwood Highway, Suite 3215
Mill Valley, California 94941
(415) 383-6600
with a copy to:
Alison S. Ressler
Sullivan & Cromwell LLP
1888 Century Park East
Los Angeles, California 90067-1725
(310) 712-6600
(Name, Address and Telephone Number of Person Authorized to
Receive Notices and Communications)
SEPTEMBER 12, 2005
(Date of Event which Requires Filing of This Statement)
If the filing person has previously filed a statement on Schedule 13G to report
the acquisition that is the subject of this Schedule 13D, and is filing this
Schedule because of Rule 13d-1(e), 13d-1(f) or 13d-1(g), check the following
box |_|.
Note. Schedules filed in paper format shall include a signed original and five
copies of the schedule, including all exhibits. See Rule 13d-7 for other parties
to whom copies are to be sent.
*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter
disclosures provided in a prior cover page.
The information required on the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).
Page 2 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
SPO Partners II, L.P.
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
WC
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
4,692,500 (1)
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By -0-
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
4,692,500 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,692,500 (1)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.6%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
PN
--------------------------------------------------------------------------------
(1) Power is exercised through its sole general partner, SPO Advisory Partners,
L.P.
Page 3 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
SPO Advisory Partners, L.P.
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
Not Applicable
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
4,692,500 (1)(2)
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By -0-
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
4,692,500 (1)(2)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,692,500 (1)(2)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
7.6%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
PN
--------------------------------------------------------------------------------
(1) Solely in its capacity as the sole general partner of SPO Partners II, L.P.
(2) Power is exercised through its sole general partner, SPO Advisory Corp.
Page 4 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
San Francisco Partners II, L.P.
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
WC
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
California
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
298,500 (1)
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By -0-
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
298,500 (1)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
298,500 (1)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0.5%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
PN
--------------------------------------------------------------------------------
(1) Power is exercised through its sole general partner, SF Advisory Partners,
L.P.
Page 5 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
SF Advisory Partners, L.P.
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
Not Applicable
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
298,500 (1)(2)
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By -0-
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
298,500 (1)(2)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
298,500 (1)(2)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
0.5%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
PN
--------------------------------------------------------------------------------
(1) Solely in its capacity as the sole general partner of San Francisco
Partners II, L.P.
(2) Power is exercised through its sole general partner, SPO Advisory Corp.
Page 6 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
SPO Advisory Corp.
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
Not Applicable
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
Delaware
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
4,991,000 (1)(2)
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By -0-
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
4,991,000 (1)(2)
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
-0-
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,991,000 (1)(2)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
8.1%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
CO
--------------------------------------------------------------------------------
(1) Solely in its capacity as the sole general partner of SPO Advisory
Partners, L.P. with respect to 4,692,500 of such shares; and
solely in its capacity as the sole general partner of SF Advisory
Partners, L.P. with respect to 298,500 of such shares.
(2) Power is exercised through its three controlling persons, John H. Scully,
William E. Oberndorf and William J. Patterson.
Page 7 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
John H. Scully
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
Not Applicable
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
USA
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
-0-
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By 4,991,000 (1)
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
-0-
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
4,991,000 (1)
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,991,000 (1)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
8.1%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
IN
--------------------------------------------------------------------------------
(1) These shares may be deemed to be beneficially owned by Mr. Scully solely
in his capacity as one of three controlling persons of SPO Advisory Corp.
Page 8 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
William E. Oberndorf
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
Not Applicable
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
USA
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
-0-
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By 4,991,000 (1)
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
-0-
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
4,991,000 (1)
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,991,000 (1)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
8.1%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
IN
--------------------------------------------------------------------------------
(1) These shares may be deemed to be beneficially owned by Mr. Oberndorf solely
in his capacity as one of three controlling persons of SPO Advisory Corp.
Page 9 of 35 pages
CUSIP No. 127055101
--------------------------------------------------------------------------------
1. NAME OF REPORTING PERSON
William J. Patterson
--------------------------------------------------------------------------------
2. CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP: (a) |_|
(b) |X|
--------------------------------------------------------------------------------
3. SEC Use Only
--------------------------------------------------------------------------------
4. SOURCE OF FUNDS
Not Applicable
--------------------------------------------------------------------------------
5. CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO
ITEMS 2(e) OR 2(f) |_|
--------------------------------------------------------------------------------
6. CITIZENSHIP OR PLACE OF ORGANIZATION
USA
--------------------------------------------------------------------------------
7. SOLE VOTING POWER
-0-
------------------------------------------------------
Number Of Shares 8. SHARED VOTING POWER
Beneficially Owned By 4,991,000 (1)
Each Reporting Person ------------------------------------------------------
With 9. SOLE DISPOSITIVE POWER
-0-
------------------------------------------------------
10. SHARED DISPOSITIVE POWER
4,991,000 (1)
--------------------------------------------------------------------------------
11. AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
4,991,000 (1)
--------------------------------------------------------------------------------
12. CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN
SHARES |_|
--------------------------------------------------------------------------------
13. PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11)
8.1%
--------------------------------------------------------------------------------
14. TYPE OF REPORTING PERSON
IN
--------------------------------------------------------------------------------
(1) These shares may be deemed to be beneficially owned by Mr. Patterson solely
in his capacity as one of three controlling persons of SPO Advisory Corp.
Page 10 of 35 pages
This Amendment No. 1 amends the Schedule 13D (the "Original 13D") filed
with the Securities and Exchange Commission ("SEC") on August 29, 2005. Unless
otherwise stated herein, the Original 13D remains in full force and effect.
Terms used herein and not defined herein shall have the meanings ascribed
thereto in the Original 13D.
ITEM 3. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.
Item 3 is hereby amended and restated in its entirety as follows:
The source and amount of the funds used or to be used by the Reporting
Persons to purchase Shares are as follows:
NAME SOURCE OF FUNDS AMOUNT OF FUNDS
--------------------- --------------------------- ---------------
SPO Contributions from Partners $152,328,132
SPO Advisory Partners Not Applicable Not Applicable
SFP Contributions from Partners $9,690,217
SF Advisory Partners Not Applicable Not Applicable
SPO Advisory Corp. Not Applicable Not Applicable
JHS Not Applicable Not Applicable
WEO Not Applicable Not Applicable
WJP Not Applicable Not Applicable
ITEM 5. INTEREST IN SECURITIES OF THE ISSUER.
Item 5 is hereby amended and restated in its entirety as follows:
(a) Percentage interest calculations for each Reporting Person are
based upon the Issuer having 62,030,447 total outstanding shares of Common Stock
as reported on the Issuer's 10-Q filed with the Securities and Exchange
Commission on August 9, 2005.
SPO
The aggregate number of Shares that SPO owns beneficially, pursuant to
Rule 13d-3 of the Act, is 4,692,500 Shares, which constitutes approximately
7.6% of the outstanding Shares.
SPO Advisory Partners
Because of its position as the sole general partner of SPO, SPO
Advisory Partners may, pursuant to Rule 13d-3 of the Act, be deemed to be the
beneficial owner of 4,692,500 Shares, which constitutes approximately 7.6%
of the outstanding Shares.
Page 11 of 35 pages
SFP
The aggregate number of Shares that SFP owns beneficially, pursuant to
Rule 13d-3 of the Act, is 298,500 Shares, which constitutes approximately
0.5% of the outstanding Shares.
SF Advisory Partners
Because of its position as the sole general partner of SFP, SF Advisory
Partners may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial
owner of 298,500 Shares, which constitutes approximately 0.5% of the
outstanding Shares.
SPO Advisory Corp.
Because of its positions as the sole general partner of each of SPO
Advisory Partners and SF Advisory Partners, SPO Advisory Corp. may, pursuant to
Rule 13d-3 of the Act, be deemed to be the beneficial owner of 4,991,000
Shares in the aggregate, which constitutes approximately 8.1% of the
outstanding Shares.
JHS
Because of his position as a control person of SPO Advisory Corp., JHS
may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of
4,991,000 Shares, which constitutes approximately 8.1% of the outstanding
Shares.
WEO
Because of his position as a control person of SPO Advisory Corp., WEO
may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of
4,991,000 Shares, which constitutes approximately 8.1% of the outstanding
Shares.
WJP
Because of his position as a control person of SPO Advisory Corp., WJP
may, pursuant to Rule 13d-3 of the Act, be deemed to be the beneficial owner of
4,991,000 Shares, which constitutes approximately 8.1% of the outstanding
Shares.
To the best of the knowledge of each of the Reporting Persons, other
than as set forth above, none of the persons named in Item 2 hereof is the
beneficial owner of any Shares.
(b) SPO
Acting through its sole general partner, SPO has the sole power to vote
or to direct the vote and to dispose or to direct the disposition of 4,692,500
Shares.
Page 12 of 35 pages
SPO Advisory Partners
Acting through its sole general partner and in its capacity as the sole
general partner of SPO, SPO Advisory Partners has the sole power to vote or to
direct the vote and to dispose or to direct the disposition of 4,692,500
Shares.
SFP
Acting through its sole general partner, SFP has the sole power to vote
or to direct the vote and to dispose or to direct the disposition of 298,500
Shares.
SF Advisory Partners
Acting through its sole general partner and in its capacity as the sole
general partner of SFP, SF Advisory Partners has the sole power to vote or to
direct the vote and to dispose or to direct the disposition of 298,500 Shares.
SPO Advisory Corp.
Acting through its controlling persons and in its capacities as the
sole general partner of each of SPO Advisory Partners and SF Advisory Partners,
SPO Advisory Corp. has the sole power to vote or to direct the vote and to
dispose or to direct the disposition of 4,991,000 Shares in the aggregate.
JHS
As one of three controlling persons of SPO Advisory Corp., which is the
sole general partner of each of SPO Advisory Partners and SF Advisory Partners,
JHS may be deemed to have shared power with WEO and WJP to vote or to direct the
vote and to dispose or to direct the disposition of 4,991,000 Shares held by
SPO and SFP in the aggregate.
WEO
As one of three controlling persons of SPO Advisory Corp., which is the
sole general partner of each of SPO Advisory Partners and SF Advisory Partners,
WEO may be deemed to have shared power with JHS and WJP to vote or to direct the
vote and to dispose or to direct the disposition of 4,991,000 Shares held by
SPO and SFP in the aggregate.
WJP
As one of three controlling persons of SPO Advisory Corp., which is the
sole general partner of each of SPO Advisory Partners and SF Advisory Partners,
WJP may be deemed to have shared power with JHS and WEO to vote or to direct the
vote and to dispose or to direct the disposition of 4,991,000 Shares held by
SPO and SFP in the aggregate.
(c) Within the past 60 days of the date of this statement, Reporting
Persons purchased Shares in open market transactions as set forth on Schedule I
attached hereto.
Page 13 of 35 pages
Except as set forth in this paragraph (c), to the best of the knowledge
of each of the Reporting Persons, none of the persons named in response to
paragraph (a) has effected any transactions in Shares during the past 60 days.
(d) Each of the Reporting Persons affirms that no person other than
such Reporting Person has the right to receive or the power to direct the
receipt of distributions with respect to, or the proceeds from the sale of,
Shares owned by such Reporting Person.
(e) Not applicable.
ITEM 7. MATERIAL TO BE FILED AS EXHIBITS.
Item 7 is hereby amended and restated in its entirety as follows:
Exhibit A: Agreement pursuant to Rule 13d-1(k)
Page 14 of 35 pages
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify
that the information set forth in this statement is true, complete and correct.
Dated September 14, 2005 By: /s/ Kim M. Silva
--------------------------------
Kim M. Silva
Attorney-in-Fact for:
SPO PARTNERS II, L.P.(1)
SPO ADVISORY PARTNERS, L.P.(1)
SAN FRANCISCO PARTNERS II, L.P.(1)
SF ADVISORY PARTNERS, L.P.(1)
SPO ADVISORY CORP.(1)
JOHN H. SCULLY(1)
WILLIAM E. OBERNDORF(1)
WILLIAM J. PATTERSON(1)
(1) A Power of Attorney
authorizing Kim M. Silva to
act on behalf of this
person or entity has been previously
filed with the Securities and
Exchange Commission.
Page 15 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 8/29/2005 Buy 94 33.15 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,692 33.20 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 376 33.21 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,410 33.22 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,786 33.23 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 94 33.24 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 188 33.25 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 846 33.26 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,034 33.27 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,128 33.28 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 752 33.31 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 2,444 33.32 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,222 33.33 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 752 33.34 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 94 33.35 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,222 33.36 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,880 33.37 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,974 33.39 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,222 33.40 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 188 33.41 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 940 33.42 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 846 33.43 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 1,974 33.45 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 2,068 33.46 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 658 33.47 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 846 33.48 Open Market/Broker
SPO Partners II, L.P. 8/29/2005 Buy 752 33.49 Open Market/Broker
Page 16 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 8/29/2005 Buy 1,518 33.50 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 6 33.15 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 108 33.20 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 24 33.21 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 90 33.22 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 114 33.23 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 6 33.24 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 12 33.25 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 54 33.26 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 66 33.27 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 72 33.28 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 48 33.31 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 156 33.32 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 78 33.33 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 48 33.34 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 6 33.35 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 78 33.36 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 120 33.37 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 126 33.39 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 78 33.40 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 12 33.41 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 60 33.42 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 54 33.43 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 126 33.45 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 132 33.46 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 42 33.47 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 54 33.48 Open Market/Broker
Page 17 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 8/29/2005 Buy 48 33.49 Open Market/Broker
San Francisco Partners, L.P. 8/29/2005 Buy 82 33.50 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 2,068 32.95 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,410 32.96 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 94 33.00 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,974 33.01 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 564 33.02 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 2,444 33.03 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 846 33.05 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 282 33.06 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,034 33.07 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,316 33.08 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 940 33.09 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 658 33.14 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 94 33.15 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 470 33.16 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 470 33.17 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 2,068 33.18 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,786 33.19 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 29,422 33.20 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,410 33.21 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 2,256 33.22 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 3,666 33.23 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,316 33.24 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,504 33.25 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,598 33.26 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,880 33.27 Open Market/Broker
Page 18 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 8/30/2005 Buy 564 33.28 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 94 33.29 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 188 33.30 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 188 33.37 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 376 33.38 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 1,128 33.39 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 752 33.41 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 188 33.42 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 470 33.44 Open Market/Broker
SPO Partners II, L.P. 8/30/2005 Buy 282 33.48 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 132 32.95 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 90 32.96 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 6 33.00 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 126 33.01 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 36 33.02 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 156 33.03 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 54 33.05 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 18 33.06 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 66 33.07 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 84 33.08 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 60 33.09 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 42 33.14 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 6 33.15 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 30 33.16 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 30 33.17 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 132 33.18 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 114 33.19 Open Market/Broker
Page 19 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 8/30/2005 Buy 1,878 33.20 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 90 33.21 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 144 33.22 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 234 33.23 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 84 33.24 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 96 33.25 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 102 33.26 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 120 33.27 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 36 33.28 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 6 33.29 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 12 33.30 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 12 33.37 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 24 33.38 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 72 33.39 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 48 33.41 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 12 33.42 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 30 33.44 Open Market/Broker
San Francisco Partners, L.P. 8/30/2005 Buy 18 33.48 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 3,948 32.90 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 1,222 32.91 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 470 32.92 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 470 32.93 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 470 32.94 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 33,464 32.95 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 376 32.96 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 1,974 32.97 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 3,478 32.98 Open Market/Broker
Page 20 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 8/31/2005 Buy 1,410 32.99 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 16,638 33.00 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 376 33.01 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 188 33.02 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 376 33.03 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 188 33.04 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 752 33.05 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 564 33.06 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 2,914 33.07 Open Market/Broker
SPO Partners II, L.P. 8/31/2005 Buy 922 33.09 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 252 32.90 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 78 32.91 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 30 32.92 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 30 32.93 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 30 32.94 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 2,136 32.95 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 24 32.96 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 126 32.97 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 222 32.98 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 90 32.99 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 1,062 33.00 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 24 33.01 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 12 33.02 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 24 33.03 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 12 33.04 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 48 33.05 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 36 33.06 Open Market/Broker
Page 21 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 8/31/2005 Buy 186 33.07 Open Market/Broker
San Francisco Partners, L.P. 8/31/2005 Buy 78 33.09 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 282 32.93 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 564 32.98 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 1,410 33.00 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 94 33.35 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 282 33.36 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 1,222 33.37 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 1,316 33.38 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 282 33.41 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 658 33.43 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 1,974 33.44 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 564 33.45 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 1,880 33.46 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 4,324 33.47 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 1,598 33.49 Open Market/Broker
SPO Partners II, L.P. 9/1/2005 Buy 4,650 33.50 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 18 32.93 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 36 32.98 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 90 33.00 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 6 33.35 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 18 33.36 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 78 33.37 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 84 33.38 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 18 33.41 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 42 33.43 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 126 33.44 Open Market/Broker
Page 22 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 9/1/2005 Buy 36 33.45 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 120 33.46 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 276 33.47 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 102 33.49 Open Market/Broker
San Francisco Partners, L.P. 9/1/2005 Buy 250 33.50 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 940 32.84 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 32.86 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 282 32.87 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 2,444 32.88 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 2,256 32.89 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 4,042 32.90 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 2,632 32.91 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 4,136 32.92 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 3,008 32.93 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 1,786 32.94 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 2,632 32.95 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 2,350 32.96 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 3,478 32.97 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 1,598 32.98 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 752 32.99 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 2,350 33.00 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 376 33.01 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 564 33.02 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 188 33.03 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 282 33.06 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 470 33.07 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 33.14 Open Market/Broker
Page 23 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 9/2/2005 Buy 94 33.15 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 188 33.18 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 33.19 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 33.22 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 33.24 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 33.32 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 33.37 Open Market/Broker
SPO Partners II, L.P. 9/2/2005 Buy 94 33.44 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 60 32.84 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 32.86 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 18 32.87 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 156 32.88 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 144 32.89 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 258 32.90 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 168 32.91 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 264 32.92 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 192 32.93 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 114 32.94 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 168 32.95 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 150 32.96 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 222 32.97 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 102 32.98 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 48 32.99 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 150 33.00 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 24 33.01 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 36 33.02 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 12 33.03 Open Market/Broker
Page 24 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 9/2/2005 Buy 18 33.06 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 30 33.07 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.14 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.15 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 12 33.18 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.19 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.22 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.24 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.32 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.37 Open Market/Broker
San Francisco Partners, L.P. 9/2/2005 Buy 6 33.44 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 94 32.75 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 2,350 32.76 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 376 32.78 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 3,102 32.79 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 1,128 32.80 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 1,786 32.81 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 32.82 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 1,786 32.83 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 564 32.87 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 12,126 32.88 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 4,700 33.00 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 33.06 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 33.07 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 33.08 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 33.09 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 282 33.10 Open Market/Broker
Page 25 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 9/6/2005 Buy 376 33.12 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 33.13 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 470 33.14 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 564 33.15 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 33.16 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 376 33.17 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 470 33.18 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 1,880 33.19 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 282 33.20 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 188 33.21 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 658 33.22 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 846 33.23 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 1,222 33.24 Open Market/Broker
SPO Partners II, L.P. 9/6/2005 Buy 658 33.25 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 6 32.75 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 150 32.76 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 24 32.78 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 198 32.79 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 72 32.80 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 114 32.81 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 12 32.82 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 114 32.83 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 36 32.87 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 774 32.88 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 300 33.00 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 12 33.06 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 12 33.07 Open Market/Broker
Page 26 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 9/6/2005 Buy 12 33.08 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 12 33.09 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 18 33.10 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 24 33.12 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 12 33.13 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 30 33.14 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 36 33.15 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 12 33.16 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 24 33.17 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 30 33.18 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 120 33.19 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 18 33.20 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 12 33.21 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 42 33.22 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 54 33.23 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 78 33.24 Open Market/Broker
San Francisco Partners, L.P. 9/6/2005 Buy 42 33.25 Open Market/Broker
SPO Partners II, L.P. 9/7/2005 Buy 376 32.86 Open Market/Broker
SPO Partners II, L.P. 9/7/2005 Buy 376 32.89 Open Market/Broker
SPO Partners II, L.P. 9/7/2005 Buy 188 32.93 Open Market/Broker
SPO Partners II, L.P. 9/7/2005 Buy 93,960 33.00 Open Market/Broker
San Francisco Partners, L.P. 9/7/2005 Buy 24 32.86 Open Market/Broker
San Francisco Partners, L.P. 9/7/2005 Buy 24 32.89 Open Market/Broker
San Francisco Partners, L.P. 9/7/2005 Buy 12 32.93 Open Market/Broker
San Francisco Partners, L.P. 9/7/2005 Buy 6,040 33.00 Open Market/Broker
SPO Partners II, L.P. 9/8/2005 Buy 15,980 33.00 Open Market/Broker
SPO Partners II, L.P. 9/8/2005 Buy 10,810 33.05 Open Market/Broker
Page 27 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 9/8/2005 Buy 94 33.08 Open Market/Broker
SPO Partners II, L.P. 9/8/2005 Buy 1,504 33.09 Open Market/Broker
SPO Partners II, L.P. 9/8/2005 Buy 6,412 33.10 Open Market/Broker
San Francisco Partners, L.P. 9/8/2005 Buy 1,020 33.00 Open Market/Broker
San Francisco Partners, L.P. 9/8/2005 Buy 690 33.05 Open Market/Broker
San Francisco Partners, L.P. 9/8/2005 Buy 6 33.08 Open Market/Broker
San Francisco Partners, L.P. 9/8/2005 Buy 96 33.09 Open Market/Broker
San Francisco Partners, L.P. 9/8/2005 Buy 388 33.10 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 282 32.99 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 188 33.02 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 658 33.03 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 94 33.05 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 94 33.06 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 846 33.07 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 658 33.08 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 1,316 33.09 Open Market/Broker
SPO Partners II, L.P. 9/9/2005 Buy 2,164 33.10 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 18 32.99 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 12 33.02 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 42 33.03 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 6 33.05 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 6 33.06 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 54 33.07 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 42 33.08 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 84 33.09 Open Market/Broker
San Francisco Partners, L.P. 9/9/2005 Buy 136 33.10 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 376 32.66 Open Market/Broker
Page 28 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 9/12/2005 Buy 940 32.67 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 658 32.68 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 470 32.70 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 94 32.73 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 1,034 32.75 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 94 32.78 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 564 32.80 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 470 32.90 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 188 32.91 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 1,880 32.92 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 188 32.94 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 846 32.95 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 564 32.96 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 2,444 32.97 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 1,598 32.98 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 2,350 32.99 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 20,210 33.00 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 188,282 33.01 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 1,692 33.02 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 9,400 33.03 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 3,384 33.04 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 17,954 33.05 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 21,620 33.10 Open Market/Broker
SPO Partners II, L.P. 9/12/2005 Buy 4,700 33.18 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 24 32.66 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 60 32.67 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 42 32.68 Open Market/Broker
Page 29 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 9/12/2005 Buy 30 32.70 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 6 32.73 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 66 32.75 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 6 32.78 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 36 32.80 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 30 32.90 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 12 32.91 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 120 32.92 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 12 32.94 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 54 32.95 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 36 32.96 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 156 32.97 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 102 32.98 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 150 32.99 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 1,290 33.00 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 12,018 33.01 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 108 33.02 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 600 33.03 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 216 33.04 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 1,146 33.05 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 1,380 33.10 Open Market/Broker
San Francisco Partners, L.P. 9/12/2005 Buy 300 33.18 Open Market/Broker
Page 30 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 9/13/2005 Buy 1,034 32.03 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 564 32.04 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 3,196 32.05 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,786 32.06 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,504 32.07 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,692 32.08 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 282 32.09 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 2,444 32.11 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,034 32.12 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,222 32.13 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 4,888 32.14 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 5,828 32.15 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,222 32.16 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 6,204 32.17 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,692 32.24 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 940 32.26 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 2,538 32.27 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,598 32.28 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 4,136 32.29 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 13,066 32.30 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 2,162 32.31 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 94 32.33 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,034 32.34 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 4,888 32.35 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 3,854 32.36 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 846 32.37 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,316 32.38 Open Market/Broker
Page 31 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 9/13/2005 Buy 1,128 32.39 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 2,444 32.40 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 376 32.41 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 188 32.45 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 470 32.58 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 282 32.60 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 376 32.61 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 846 32.62 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 1,222 32.64 Open Market/Broker
SPO Partners II, L.P. 9/13/2005 Buy 34,404 32.65 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 66 32.03 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 36 32.04 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 204 32.05 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 114 32.06 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 96 32.07 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 108 32.08 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 18 32.09 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 156 32.11 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 66 32.12 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 78 32.13 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 312 32.14 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 372 32.15 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 78 32.16 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 396 32.17 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 108 32.24 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 60 32.26 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 162 32.27 Open Market/Broker
Page 32 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 9/13/2005 Buy 102 32.28 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 264 32.29 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 834 32.30 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 138 32.31 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 6 32.33 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 66 32.34 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 312 32.35 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 246 32.36 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 54 32.37 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 84 32.38 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 72 32.39 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 156 32.40 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 24 32.41 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 12 32.45 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 30 32.58 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 18 32.60 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 24 32.61 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 54 32.62 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 78 32.64 Open Market/Broker
San Francisco Partners, L.P. 9/13/2005 Buy 2,196 32.65 Open Market/Broker
Page 33 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
SPO Partners II, L.P. 9/14/2005 Buy 475 32.00 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 2,090 32.01 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 6,745 32.02 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 8,930 32.03 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 5,510 32.04 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 6,840 32.05 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 570 32.06 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 2,660 32.07 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 1,710 32.08 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 2,850 32.09 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 1,425 32.10 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 1,805 32.11 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 1,900 32.12 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 2,660 32.13 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 4,940 32.14 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 5,320 32.15 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 5,700 32.16 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 1,520 32.17 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 855 32.18 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 2,660 32.19 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 18,335 32.20 Open Market/Broker
SPO Partners II, L.P. 9/14/2005 Buy 9,500 32.23 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 25 32.00 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 110 32.01 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 355 32.02 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 470 32.03 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 290 32.04 Open Market/Broker
Page 34 of 35 pages
SCHEDULE I TO
SCHEDULE 13D FOR SPO PARTNERS II, L.P.
DATE OF PRICE PER WHERE/HOW TRANSACTION
REPORTING PERSON TRANSACTION TYPE NUMBER OF SHARES SHARE ($) EFFECTED
---------------------------- ---------- ---- ---------------- --------- ----------------------
San Francisco Partners, L.P. 9/14/2005 Buy 360 32.05 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 30 32.06 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 140 32.07 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 90 32.08 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 150 32.09 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 75 32.10 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 95 32.11 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 100 32.12 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 140 32.13 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 260 32.14 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 280 32.15 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 300 32.16 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 80 32.17 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 45 32.18 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 140 32.19 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 965 32.20 Open Market/Broker
San Francisco Partners, L.P. 9/14/2005 Buy 500 32.23 Open Market/Broker
Page 35 of 35 pages
EXHIBIT INDEX
EXHIBIT DOCUMENT DESCRIPTION PAGE NO.
------- ------------------------------------ --------
A Agreement Pursuant to Rule 13d-1(k) 1