Clayton Gregersen is a Partner in the Billings office specializing in commercial litigation, with an emphasis in energy, natural resources and environmental law, as well as additional experience regarding utilities, personal injury, and real property law.

Clayton has represented clients, large and small, in state and federal courts, and before state and federal administrative agencies. He takes pride in advocating for his clients and arriving at optimal and just results.

Clayton graduated, with honor, from the University of Wyoming College of Law, where he was a member of the Law Review, and gained experience working as a clerk for the Wyoming Supreme Court and for the Wyoming Attorney General’s Office. Clayton is an active member of the Montana and Wyoming state bar associations, as well as organizations related to the practice of law, particularly those related to natural resources.

Originally from Big Horn, Wyoming, Clayton spends his time away from work with his wife, Laura, and enjoys golfing, snowboarding, hunting, fishing and enjoying all of the benefits the Rocky mountain outdoors have to offer.

Practice Areas

Bar Admission

U.S. District Court, District of Montana
U.S. District Court, District of Wyoming


2015 – J.D., University of Wyoming College of Law, with Honor, Order of the Coif
2011 – B.A. in Criminal Justice, University of Wyoming

Honors & Awards

Best Lawyers – Ones to Watch – Commercial Litigation, Energy Law, Environmental Law, Natural Resources Law – 2022
Rocky Mountain Mineral Law Foundation Scholar, 2014
Partnered with Justice Kate M. Fox of the Wyoming Supreme Court in the first annual Spence Law Firm Historical Trial

Professional Affiliations

State Bar of Montana
State Bar of Wyoming
Rocky Mountain Mineral Law Foundation
Montana Association of Petroleum Landmen
Wyoming Association of Petroleum Landmen

Presentations & Publications

Presenter, “16th Annual Montana Water Law Seminar,” Update on Water Quality Issues, The Seminar Group (October 2016).