On 2 November 2017, partner Sterling Energy reported that the C-10 block, shallow to deep waters of the Senegal (M S G B C) Basin, central offshore Mauritania, will be relinquished at the end of the second exploration period which ends on 29 November 2017. In November 2015, Sterling Energy announced that it had completed the acquisition of a stake in block C-10 operated by Tullow Oil. Block C-10 was awarded in 2011, it is in the second exploration period which carried a work obligation of one exploration well. The well was planned to be drilled in 2016 at a cost of USD 77 million but this did not happen. Block C-10 covers 7,732 sq km. It contains several plays including Jurassic and Lower Cretaceous carbonates, Cretaceous and Tertiary clastics. Tullow has identified a drill-ready prospect of Neocomian carbonates in a water depth of 100 m.  Participants in block C-10 are: Tullow, operator with 76.5%, Sterling Energy with 13.5% and state company SMHPM with 10%. SMHPM is carried through exploration. Â 
Mauritania, C-10