“The advent of [more sellers of] LNG is another challenge of the gas market,” Adeli said and noted that the U.S. has utilised modern technologies to produce gas from shale, so that the country has been turned from a gas importer to an exporter. Australia, another OECD country with no interest in joining organisations that could be seen as cartels, is already an LNG exporter and its output is rising sharply over the coming few years.

Crude's collapse from $100 a barrel since mid-2014 has already pummeled Russia, which relies on energy for about half its budget revenues and 40 percent of its exports. The latest slide compounds the problems facing President Vladimir Putin ahead of elections in 2018.

"Our estimate for next year is around $40 per barrel when estimating budget revenues. At $40 per barrel there is an understanding about how to act. Measures and proposals have been prepared."

Mr. Novak said that the project could still be implemented if the European Commission develops corresponding infrastructure for natural gas transportation in Central and Eastern Europe,

CNPC said the entire pipeline project is expected to be completed and operational by the end of 2018. Construction of the Chinese section began in June 2015, while construction of the Russian section began in September 2014.

Next year Georgia plans to increase the volume of natural gas it imports from Russia by 25.2% against 2015 up to 250.5 mcm. According to the natural gas balance for 2016 approved by the Georgian Energy Ministry, it plans to import 65.9 mcm of commercial gas from Russia. Georgia will receive 184.6 million cub.m. (down from 7.7%) from Russian gas transit to Armenia, for which Georgia gets 10% in volume.

Modi and Putin hailed what they termed a “strategic partnership” at their Kremlin meeting on Thursday and pledged to boost business ties, with the Indian leader signaling progress on defense projects to ensure his country upgrades its weapons capability.

“Gazprom has useful and precious experience in various fields of the gas industry and can provide them to the NIGC,” Shana quoted him saying.

Gazprom’s “export policy has always been balanced and adaptive,” says spokesman Sergei Kupriyanov. He argues that European customers have become more interested, not less, in Russian gas, given Europe’s own decline in production.

I think Russia would be happy if the Southern Corridor did not happen, but I think at this point it's a fait accompli – it will happen. The Shah Deniz project has been approved and a final investment decision has been taken. Work is progressing on it and on the Trans Anatolian Pipeline (TANAP) that will cross Turkey and go on into Europe. The present issues between Turkey and Russia will only strengthen the resolve for completing the Southern Corridor. The question will be how much the Southern Corridor can expand beyond the currently planned quantities of 10 bcm to Europe and the 6 bcm to Turkey. It is also a question of whether there will be other gas sources that can put gas into that pipeline system.