e/Bakken Formation

Information
has gloss	eng: The Bakken Formation, initially described by geologist J.W. Nordquist in 1953, is a rock unit from the Late Devonian to Early Mississippian age occupying about of the subsurface of the Williston Basin, covering parts of Montana, North Dakota, and Saskatchewan.
lexicalization	eng: Bakken Formation
instance of	c/Oil fields of the United States