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Oil and Gas, Natural Resources, and Environmental Law Attorneys in the Northern Rocky Mountain Region

Based in Sheridan, Wyoming, Throne Law Office, P.C. is one of the premier oil and gas firms of the northern Rocky Mountain region. The firm handles oil and gas matters in Wyoming, Montana, North Dakota, and Colorado. The firm also handles natural resources and environmental law matters throughout Wyoming, Colorado, North Dakota and Montana.

Oil and Gas Law Services

Our oil and gas law services include administrative matters in front of various governing bodies including:

  • The Wyoming Oil and Gas Conservation Commission
  • The North Dakota Industrial Commission
  • The Montana Board of Oil and Gas
  • Other similar entities

We prepare title opinions, exploration agreements, joint operating agreements, and other transactional documents in Wyoming, North Dakota, Montana and Colorado. In addition, we conduct litigation surrounding transactional and real property issues. These services are provided by attorney S. Thomas Throne, who has been handling these matters since 1979, as well as attorneys Jacob T. Haseman and James Mowry.

Natural Resources, Coal, Water, and Environmental Law Services

Our environmental law services include air quality, water quality and industrial siting administration issues, as well as wind energy and related regulatory matters. These services are provided by attorneys Mary A. Throne, who has been handling these types of issues since 1990, and is based in our Cheyenne Office, as well as attorney Jacob Haseman.

Representative Clients

The firm's clients include land and mineral rights owners, as well as oil and gas exploration and production companies. The firm has provided oil and gas law services to the following companies, among others:

  • Chevron USA, Inc.
  • Marathon Oil Company
  • Pinnacle Gas Resources
  • Youngs Creek Mining Company, LLC
  • Ultra Petroleum Corp.
  • Samson Resources Company
  • ConocoPhillips
  • Brigham Oil and Gas
  • Pacific Power and Light
  • Anadarko Petroleum
  • Williams Production RMT Company
  • North Plains Energy
  • Peak Energy, Inc.
  • Zenenergy, Inc.

For more, please review the firm's extended list of representative clients.

Groundbreaking Cases

The firm has helped to make law in several key cases, including:

  • Mullinnix LLC v. HKB Royalty Trust, et. al., 2006 WY 14, 126 P.3d 909 (Wyo. 2006).
  • Louisiana Land and Exp. v. Oil and Gas Conservation Commission, 809 P.2d 775 (Wyo. 1991).
  • Majority of Working Interest Owners in Buck Draw Field Area v. Wyoming Oil and Gas Conservation Commission, 721 P.2d 1070 (Wyo. 1986).
  • Williams v. Watt, 668 P.2d 620 (Wyo. 1983).

Contact Throne Law Office, P.C.

To discuss your case with an experienced lawyer at Throne Law Office, P.C., call the firm at 307-672-5858 or send an e-mail.

Practice Areas Our Locations

Throne Law Office, P.C.
2 North Main Street, Suite 402
P.O. Box 1056
Sheridan WY 82801

Phone: 307-672-5858
Fax: 307-674-6104
Sheridan Law Office

Throne Law Office, P.C.

211 West 19th
Cheyenne WY 82001

Phone: 307-672-5858
Fax: 307-674-6104
Cheyenne Law Office