The cumulative effect suggests that for U.S. growth over the next three years, there's no difference between oil at $30 or $70 per barrel. How the trade balance responds to swings in crude will dictate which path is more desirable.

State-run Saudi Arabian Oil Co. increased its official selling price for May Light, Medium and Heavy sales to U.S. buyers by 40 cents a barrel, the company said in an e-mailed statement Tuesday. Extra Light crude will sell at a premium of $2.60 a barrel to the regional benchmark, 75 cents higher than the differential in April. For the U.S., the benchmark is the Argus Sour Crude Index.

Front month U.S. West Texas Intermediate (WTI) crude futures were trading at $38.02 per barrel at 0653 GMT, up 76 cents, or 2 percent, from their last close. International Brent futures were up 60 cents at $40.03 a barrel.

Prices, which have swung between highs of about $42 a barrel and lows of about $27 this year, will continue to be volatile in the short term, Al Jaber said in an interview with Abu Dhabi dailies The National and Al Ittihad.

OPEC secondary sources put Iran's current output at 2.93 million barrels per day (bpd). It is working to regain market share, particularly in Europe, after the lifting of international sanctions in January. The sanctions had cut crude exports from a peak of 2.5 million bpd before 2011 to just over 1 million bpd in recent years.

The world’s biggest oil exporter lost ground to rivals in nine out of 15 top markets between 2013 and 2015, including China, South Africa and the US, according to an analysis of customs data.

Brent oil prices dropped below $40/bbl on the London market on Mar. 29 after news reports about the restart of production from Khafji oil field, which had been closed since October 2014. Kuwait Gulf Oil Co. and Saudi Aramco Gulf Operations Co. jointly operate the 300,000-b/d field. No restart date was given.

U.S. crude oil production from the Lower 48 states from new wells (drilled since the start of 2014) made up 48% of total U.S. crude oil production in 2015, up from 22% in 2007. Production from new wells has grown as advances in horizontal drilling and completion techniques led to growth in oil production from low-permeability tight reservoirs. In 2015, production from tight formations—which include, but are not limited to, shale plays—accounted for more than 4 million barrels per day (b/d), or 50% of total U.S. oil production.

The U.K. is the second-largest liquids producer in Europe (after Norway), producing one million b/d in 2015. This amount is large among European countries but small in the global market, and the U.K. remains a net importer of petroleum and other liquids. More than 97% of its liquids production in 2015 came from offshore fields, where petroleum development projects have long lead times. The majority of the offshore crude and condensate fields that began production in 2015 were approved in 2012 or earlier when oil prices were much higher.

Persistently low oil prices complicate the conduct of monetary policy, risking further inroads by unanchored inflation expectations. What is more, the current episode of historically low oil prices could ignite a variety of dislocations including corporate and sovereign defaults, dislocations that can feed back into already jittery financial markets. The possibility of such negative feedback loops makes demand support by the global community—along with a range of country-specific structural and financial-sector reforms—all the more urgent.

Neil Atkinson, head of the IEA’s Oil Industry and Markets Division, said in Singapore on Wednesday. About $300 billion is needed to sustain the current level of production, and nations including the U.S., Canada, Brazil, and Mexico are facing difficulty in keeping up investments, he said.

“We furnish 20 percent of China’s crude oil imports – about one million barrels a day. But there’s a significant gap in what we are doing now, and what we can offer,” Nasser said. “Our investments in China’s entire oil value chain – integrating supply, refining, chemicals, lubes, distribution and marketing – don’t match our supply.”

Gasoline production is set to grow in 2016 due to the commissioning of Indian Oil Corp.'s 2.9 million mt/year continuous catalytic reformer at its greenfield 15 million mt/year (300,000 b/d) Paradip refinery, and completion of Bharat Petroleum Corp. Ltd.'s gasoline capacity expansion at its Kochi refinery by 6 million mt/year to 15.5 million mt/year (310,000 b/d) sometime in May.

Federal lawyers on Tuesday formally asked a judge in New Orleans to approve a record-breaking $20 billion-plus settlement agreement announced last July by the Department of Justice and five Gulf Coast states to resolve years of legal fighting about the 2010 Gulf oil spill.

China's total oil imports rose about 20 percent on year to the highest ever on a daily basis in February, when near 10-year low global oil prices drove buying from a group of new importers and for state and commercial stockpiling.