USA er verdens største produsent av olje, forbi Saudi-Arabia. Det er utvinningen fra skiferlag som ligger bak stigningen.

 

The U.S. has catapulted past Saudi Arabia as the world’s biggest fuel producer, now that abundant production from shale-oil fields has pushed U.S. crude-oil output to a 20-year high.

Long the world’s biggest oil consumer, the U.S. took the largest supplier crown in November 2012 for the first time since August 2002, producing 11.654 million barrels a day of liquid fuels, including crude, refined petroleum products like gasoline and other liquids like biofuels, according to the federal Energy Information Administration.

 

http://online.wsj.com/article/SB10001424127887324678604578342642614340314.html