Michael H. Gardner Tracey J. Mercier Cheryl A. Woodall Phuong A. Le Andrea D. Cicero Ronald M. Drake II Geoffrey S. Ellis Thomas M. Finn Sarah E. Gelman Jane S. Hearon Benjamin G. Johnson Jenny H. Lagesse Heidi M. Leathers-Miller Kristen R. Marra Kira K. Timm Scott S. Young Christopher J. Schenk 2023 <p>Using a geology-based assessment methodology, the U.S. Geological Survey estimated means of 220 million barrels of continuous oil and 1 trillion cubic feet of continuous gas in the Bakken Formation of northwest Montana.</p> application/pdf 10.3133/fs20233016 en U.S. Geological Survey Assessment of continuous oil and gas resources in the Bakken Formation of northwest Montana, 2022 reports