The changes come at a difficult time for the Saudi kingdom, which is still adjusting to last year's leadership transition while also facing pressure from regional rivals like Iran.

“While the UK offshore oil and gas industry is having to adapt to the low oil price and driving greater efficiencies throughout its operations the fact is that the value of our product has more than halved," she said. "Times are really tough for this industry and for the people working in it. We will continue to see job losses as we move into 2016 and we must be thoughtful and supportive of our colleagues and their families who are being made redundant or who are at risk of being made redundant."

U.S. Rig Count is down 2 rigs from last week to 698, with oil rigs down 2 to 536, and gas rigs are unchanged from last week, at 162.

With no growth and no profits, the US exploration and production industry is facing a gruelling year. The gap between strong and weak companies is likely to widen. Those that have lower-cost production and healthier balance sheets should be able to stay in business. Those that have good assets but big debts may have to sell their most valuable properties. Those that have neither attractive assets nor strong finances will be heading for bankruptcy.

West Texas Intermediate (WTI) and Brent, two of the major crude oil benchmarks, account for about 69% of the weighting in the S&P GSCI Energy index. As a result, the energy index tends to follow major price movements in the crude oil market. With sustained, high crude oil production from countries like Saudi Arabia, Iraq, the United States, and Russia, global liquid fuel inventories rose significantly in 2015, resulting in crude oil prices falling to 11-year lows in December.

Global benchmark Brent crude prices fell 23 cents to $36.99 a barrel at 0910 GMT. U.S. West Texas Intermediate (WTI) crude slipped 7 cents to $36.69 a barrel.

The Dow Jones Industrial Average slipped 117.11 points, or 0.7%, to 17603.87. The S&P 500 fell 0.7% and the Nasdaq Composite lost 0.8%.

In July 2014, at the height of the Crimean Crisis, Ukraine imported gas from Western Europe, and particularly from Germany for $370 per 1,000 cubic metres. Earlier in the 2014, the country had paid $273 per million cubic metres for gas from Russia.

"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.

Egypt is obliged to pay for LNG shipments within 15 days of a shipment's unloading. Now the Egyptian authorities are looking to extend that timeframe. Egypt used to get financial support from the Gulf Cooperation Council (GCC) countries and probably will still get it. However, due to lower energy prices, the support now is more limited. Egypt buys six to eight LNG cargoes monthly, each worth $20-$25 million. It is now in arrears of $350 million for that energy, one source estimated.

“TAP is crucial in the diversification of gas sources in Europe through the development of the Southern Corridor from the Republic of Azerbaijan and potentially other countries,” said Carlo Malacarne, Snam’s chief executive officer.

"We’re facing challenges in a number of countries, including Ukraine where we were forced to sell our assets though they were among the best. We’ve sold our assets in Estonia. Today we listed for sale our assets in Lithuania and Latvia where there is rather serious anti-Russia sentiment that’s why the board of directors took the decision to leave those countries," Alekperov said.

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.