Сахалин Энерджи
The original consortium was formed in 1991 by Marathon, McDermott, Mitsui and Russian Federation as MMM Consortium. Shell and Mitsubishi joined the consortium in 1992, to make it MMMMS. In April 1994, the consortium formed Sakhalin Energy Investment Company Ltd. to develop and manage the Sakhalin II project. Sakhalin Energy signed a production sharing agreement with the Russian Federation in 2004.