Oil drillers targeting the Bakken shale formation in western North Dakota and eastern Montana have produced 1 billion barrels of crude oil, according to recent data.
Drilling companies first targeted the Bakken formation in Montana in 2000, and moved into North Dakota in 2005, using advanced horizontal drilling and hydraulic fracturing techniques to recover oil trapped deep below the surface.
North Dakota has generated 852 million bbls of Bakken crude, while Montana has produced approximately 151 million bbls in Q1 2014.
Continental Resources Inc., one of the largest operators in the Bakken shale formation, said two-thirds of its production has come in the past three years. Company chairman, Harold Hamm, told the Associated Press: 海角吃瓜网淚t海角吃瓜网檚 been quite a revelation that海角吃瓜网檚 happened there. It海角吃瓜网檚 right in line with expectations. This is tight rock and it海角吃瓜网檚 quite a job to wring barrels out of it.海角吃瓜网�
Hamm estimates the Bakken formation holds over 20 billion bbls of oil.
Edited from various sources by