• Assets

Marathon Oil holds a 21.25 percent non-operated working interest in the Diaba License G4-223 and its related
permit offshore Gabon, which covers approximately 2.2 million gross (477,000 net) acres. Multiple additional pre-salt prospects have been identified on this License.

In August 2014, the Company signed an exploration and production sharing contract for Gabon offshore Block G13, which was subsequently re-named Tchicuate. The block, which is located in the pre-salt play offshore Gabon, encompasses 277,000 acres. The seismic program was completed during 2015 and processing will occur through 2016. Marathon Oil holds a 100 percent participating interest and operatorship in the block.