X0303 4 2010-04-14 0 0001022345 MARINER ENERGY INC ME 0001475641 Sherman R. Cris ONE BRIARLAKE PLAZA, SUITE 2000 2000 WEST SAM HOUSTON PARKWAY SOUTH HOUSTON TX 77042 0 1 0 0 VP & Chief Accounting Officer Common Stock 2010-04-14 4 A 0 17121 0 A 27029 D Shares of restricted stock granted on April 14, 2010 under Mariner Energy, Inc. Third Amended and Restated Stock Incentive Plan as part of 2008 Long-Term Performance-Based Restricted Stock Program. The stock generally vests as follows: (i) 40% of the shares vest pro rata over five years on each of the first five anniversaries of the date on which the rolling 15-day average closing price per share of Mariner common stock is $38 or more but less than $46, and (ii) the remaining 60% of the shares vest pro rata over seven years on each of the first seven anniversaries of the date on which the rolling 15-day average closing price per share of Mariner common stock is $46 or more. R. Cris Sherman by Teresa G. Bushman pursuant to Power of Attorney dated October 29, 2009 (previously filed as Exhibit 24 to Mr. Sherman's Form 3 filed on October 29, 2009) 2010-04-21