An official signing ceremony between the Ministry of Energy and PTTEP (Thailand) Limited together with the consortiums takes place on July 24, 2009. Chevron Pattani Limited (the operator) holds 71.25% interest, Mitsui Oil Exploration Company Limited (Moeco) and PTTEP (Thailand) Limited hold 23.75% and 5% interests respectively.
Regarded as a marginal field, the most appropriate development operation for petroleum concession block G4/48 is to use the existing facilities in Unocal 3 project. This plan will make the block G4/48 commercially feasible and also raise the economics of both projects.