Template:Infobox companyKamfanin Sakhalin Energy Investment Company Ltd. (Sakhalin Energy) ƙungiya ce don haɓaka aikin mai da gas na Sakhalin-2 tare da babban ofishin kamfani a Yuzhno-Sakhalinsk . Andrei Galaev ya kasance babban jami'in zartarwa tun shekara ta 2009. Babban ayyukan kamfanin shine samarwa da fitar da danyen mai (tun shekara ta 1999) da iskar gas (daga shekara ta 2009). An kafa ƙungiyar ta asali a cikin shekara ta 1991 ta Marathon, McDermott, Mitsui da Tarayyar Rasha a matsayin MMM Consortium. Shell da Mitsubishi sun haɗu da haɗin gwiwa a cikin shekara ta 1992, don sanya shi MMMMS. A cikin Afrilu shekara ta 1994, ƙungiyar ta kafa Kamfanin Sakhalin Energy Investment Company Ltd. don haɓakawa da sarrafa aikin Sakhalin II. Sakhalin Energy ya rattaba hannu kan yarjejeniyar raba kayan aiki tare da Tarayyar Rasha a shekara ta 2004. McDermott ya sayar da rabonsa ga sauran abokan haɗin gwiwa a cikin shekara ta 1997 kuma Marathon ya yi ciniki da Shell don wasu kaddarorin (filin BP mai sarrafa Foinaven, kusa da Tsibirin Shetland, da yanki guda takwas a Tekun Mexico - gami da filin Ursa) a cikin shekara ta 2000 .