Dow e-minis were down 380 points, or 2.26 percent, with 99,258 contracts changing hands at 8:13 a.m. ET (1313 GMT). S&P 500 e-minis were down 45 points, or 2.27 percent, with 578,860 contracts traded. Nasdaq 100 e-minis were down 130.25 points, or 2.93 percent, on volume of 108,831 contracts.

West Texas Intermediate crude for February delivery declined to $36.58 a barrel on the New York Mercantile Exchange, after falling 0.8 percent Monday. U.S. crude inventories are forecast to keep supplies more than 130 million barrels above the five-year seasonal average, according to a Bloomberg survey before government data Wednesday.

While tens of thousands of jobs have already been cut in 2015, more redundancies are expected this year as companies narrow their focus.

Moody’s last month also projected average prices of West Texas Intermediate crude at $40/bbl in 2016, $45/bbl in 2017, and $50/bbl in 2018. The 2016 price is down $8/bbl from the firm’s earlier forecast.

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.

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.

Russia announced state aid for a major energy project on Wednesday under a drive to shore up strategic firms as well as public faith in its banking system during an economic crisis deepened by Western sanctions.

BBC - Heirs to the Rockefeller family, which made its vast fortune from oil, are to sell investments in fossil fuels and reinvest in clean energy, reports say.

PRNEWSWIRE - Charles and David Koch of Kansas are the wealthiest individuals in America's oil and gas sector, with a combined net worth of US$83 billion, according to a Wealth-X Top 10 list that includes billionaires from Texas, New York and Oklahoma.