X0303 4 2010-03-24 0 0001022345 MARINER ENERGY INC ME 0001351487 BUSHMAN TERESA G ONE BRIARLAKE PLAZA, SUITE 2000 2000 WEST SAM HOUSTON PARKWAY SOUTH HOUSTON TX 77042 0 1 0 0 Sr. VP, Gen. Cnsl. & Secretary Common Stock 2010-03-24 4 F 0 1605 D 187698 D Employee Stock Option (right to buy) 14 2008-03-11 2015-03-11 Common Stock 40000 40000 D On March 24, 2010, 5,106 shares of the issuer's common stock granted to the reporting person under the issuer's Stock Incentive Plan, as amended and restated from time to time (the "Plan"), vested. To satisfy withholding tax obligations in connection with the vesting, the issuer withheld the shares this Form reports were disposed. In accordance with the Plan, the number of shares withheld was determined by reference to the closing price per share of the issuer's common stock on the New York Stock Exchange on March 23, 2010 of $14.99. Teresa G. Bushman 2010-03-24