The new contract will commence immediately following the completion of the well in progress under the existing contract and also includes six one-well priced options. As a result of this contract, the expected earliest availability of the Atwood Achiever is March 2018, assuming no options are exercised.

Rob Saltiel, President and Chief Executive Officer of Atwood Oceanics, commented: "We are pleased to extend our drilling operations for Kosmos Energy in Northwest Africa."

Atwood Oceanics owns 10 mobile offshore drilling units and is constructing two ultra-deepwater drillships.