Japan plans to retain its interest in the Sakhalin 2 oil and gas project and will notify Russia of its intention by the early September deadline, with two major Japanese energy companies set to sign on, sources familiar with the matter said Friday.The likely participation of Jera Co., a Tokyo-based power generator, and Tokyo Gas Co. would help Japan procure liquefied natural gas from Russia, the sources said.Tokyo Gas said it is already in talks with the new company overseeing the project, while Jera declined to comment officially. Jera is a thermal power generator jointly set up by Tokyo E…READ FULL ARTICLE