In September 2014, LUKOIL acquired interest in the project from U.S.-based Chevron Corporation. The deal was approved by the Nigerian National Petroleum Corporation (NNPC) on October 6, 2015. Chevron and LUKOIL fund the project at 55% and 45% respectively. Oil and Gas Nigeria Limited and NNPC are carried partners in the project.
OML-140 includes the Nsiko, Nsiko North and Ofigbo discoveries, and a minor interest in the unitized Bonga Southwest Aparo (BSWAp) Field which is operated by Shell.