X0306 4 2015-01-02 0 0000101778 MARATHON OIL CORP MRO 0001604594 Donadio Marcela E C/O MARATHON OIL CORPORATION 5555 SAN FELIPE STREET HOUSTON TX 77056 1 0 0 0 Marathon Oil Corporation Common Stock 2015-01-02 4 A 0 6118.881 0.00 A 6118.881 D Non-Retainer Annual Director Stock Unit Award granted under Marathon Oil Corporation 2012 Incentive Compensation Plan. The annual non-retainer stock based compensation represented by these common stock units are credited to an unfunded account. These common stock units, along with their accrued dividend equivalent rights, will vest on January 2, 2018 and be payable in shares of common stock. Yvonne R. Kunetka, Attorney-in-Fact for Marcela E. Donadio 2015-01-05