"The lifting of sanctions on Iran would be a game changer for world gas market," said Dr Seyed Mohammad Hossein Adeli, secretary general of the Gas Exproting Countries Forum, Zawya news website has reported.

After Exxon Mobil Corp. mounted a campaign to warn U.S. officials that prematurely halting work with Russian oil giant Rosneft on an exploratory oil well could foul the Arctic, the Obama administration last week gave the company a two-week reprieve from sanctions on Russia.

Qatar has no plans to pitch in as an alternative supplier as Europe seeks to reduce its reliance on Russian gas according to the country's energy minister, AFP has reported.

US LNG to Help, Not to Solve European Problems with Russia

France’s Total on Monday said its joint venture with Russia’s Lukoil , to explore shale oil in western Siberia , had ground to a halt as a result of western sanctions.

France’s Total on Monday said its joint venture with Russia’s Lukoil , to explore shale oil in western Siberia , had ground to a halt as a result of western sanctions.

The Yamal plan, a $27 billion investment to tap vast natural gas reserves in northwest Siberia, aims to double Russia's stake in the fast-growing market for liquefied natural gas.

Russia looks beyond West Siberia for future oil and natural gas growth

US shale gas exports to hit Gazprom revenue

South Stream project, the EU continues to produce new ideas on how to block the proposed gas route. This is in the midst of a confused political situation regarding the pipeline's entry point in Bulgaria, a country about to enter a polarized early general election.