An oil-drilling boom in Montana and North Dakota has caused pumping jack to be a common sight on the prairies.
An oil-drilling boom in Montana and North Dakota has caused pumping jack to be a common sight on the prairies. MCT
An oil-drilling boom in Montana and North Dakota has caused pumping jack to be a common sight on the prairies. MCT

U.S. expected soon to be crowned world’s oil king

November 12, 2013 4:21 PM