X0303 4 2010-04-01 0001471261 Cobalt International Energy, Inc. CIE 0001347251 Drennon Michael D C/O TWO POST OAK CENTRAL 1980 POST OAK BOULEVARD, SUITE 1200 HOUSTON TX 77056 0 1 0 0 EVP & Gen'l Mgr, Cobalt Angola Common Stock 2010-04-01 4 A 0 25000 0 A 25000 D Common Stock 2010-04-01 4 A 0 25000 0 A 50000 D The reported securities represent restricted shares granted under the Issuer's Long Term Incentive Plan (the "Plan") that will vest, subject to the terms of the award agreement under the Plan, 60% on April 1, 2013 and 40% on April 1, 2014. The reported securities represent restricted shares granted under the Plan that will vest, subject to the terms of the award agreement under the Plan, on December 21, 2014, but only if the average of the volume weighted average price of a share of the Issuer's common stock during the 90 day period ending on the day before December 21, 2014 equals or exceeds $13.50. /s/ Jeffrey A. Starzec, Attorney-in-Fact 2010-04-01