Japan keeps holdings in Sakhalin-1 and Sakhalin-2 Tokyo will also keep its shares in the Russian oil and gas projects despite the anti-Russian sanctions, according to a government report. Russia remains the third largest LNG supplier to Japan, and plays a key role in the country's energy security. The document emphasizes that Sakhalin supplies bypass unstable sea lanes, including the Strait of Hormuz, which ensures a more reliable energy supply.