X0203 3 2008-08-06 0 0001022345 MARINER ENERGY INC ME 0001442478 MOORE KENNETH E JR ONE BRIARLAKE PLAZA, SUITE 2000 2000 WEST SAM HOUSTON PARKWAY SOUTH HOUSTON TX 77042 0 1 0 0 VP-Onshore Land Common Stock 37812 D Employee Stock Option (right to buy) 14 2006-03-02 2015-03-11 Common Stock 8000 D Of these shares, 7,810 are shares remaining from a May 9, 2006 grant under the issuer's Stock Incentive Plan, as amended or restated from time to time (the "SIP"), of 9,000 shares of restricted stock that vest one-fourth on each of the first four anniversaries of the grant date. Of these shares, 6,383 are shares remaining from an April 18, 2007 grant under the SIP of 7,000 shares of restricted stock that vest one-third on each of the first three anniversaries of the grant date. Of these shares, 6,498 are shares of restricted stock granted on March 24, 2008 under the SIP that vest one-fourth on each of the first four anniversaries of the grant date. Of these shares, 17,121 are shares of restricted stock granted on June 16, 2008 under the SIP 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. Kenneth E. Moore, Jr. by Teresa G. Bushman pursuant to Power of Attorney dated August 7, 2008 and filed herewith as Exhibit 24. 2008-08-12