San Diego, CA -- (SBWIRE) -- 06/07/2017 -- The acquisition of Atwood Oceanics is under investigation over potential wrongdoing. The investigation was announced for investors, who currently hold NYSE:ATW shares, concerning whether the takeover of Atwood Oceanics, Inc. by Ensco plc for a value of approximately $10.72 per share is unfair to NYSE:ATW stockholders.