Gregory L. Mahaffey 300 NE 1st Street Oklahoma City, Oklahoma 73104 |  |
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- Areas of Practice:
- Oil & Gas
- Oklahoma Corporation Commission
- Administrative Hearings & Adjudication
- Administrative Rulemaking
- Licensing
- Regulatory Enforcement
- Mediation
- Mortgages & Foreclosures
- Contracts
- Debtor/Creditor
- Joint Ventures
- Mergers, Acquisitions & Divestitures
- Secured Transactions
- Transactions
- Uniform Commercial Code
- Warranties
- Construction Liens
- Construction Defects
- Minerals & Mining
- Cleanup & Superfund
- Regulatory Compliance & Auditing
- Water Pollution
- Class Actions
- Complex Litigation
- Federal Appellate Practice
- Federal Trial Practice
- Multidistrict Litigation
- State Appellate Practice
- State Trial Practice
- Water & Riparian Rights
- Product Liability - Machinery & Tools
- Bar Admissions:
- Oklahoma, 1975
- U.S. District Court Eastern District of Oklahoma, 1978
- U.S. District Court Western District of Oklahoma, 1975
- U.S. District Court Northern District of Oklahoma, 1975
- U.S. Court of Appeals 10th Circuit, 1978
- U.S. Supreme Court, 1985
- Education:
- University of Oklahoma College of Law, Norman, Oklahoma,
1975
J.D. - Texas Tech University,
1972
B.S.I.E.
- Representative Cases:
- Withrow v. Red Eagle Oil Co., 755 P.2d 622 (Okla. 1988)
- Stolz Wagner & Brown vs. J. Walter Duncan, 417 F. Supp. 552 (W.D. Okla. 1976)
- PCX Corporation vs. Oklahoma Corporation Commission, 699 P. 2d 1103 (Okla. Civ. App. 1984)
- LPCX Corp. vs. Faulkner, 818 P.2d 431 (Okla. 1991)
- French Petroleum vs. Oklahoma Corporation Commission, 805 P.2d 650 (Okla. 1991)
- Nilsen vs. Ports of Call Oil Company, 711 P.2d 98 (Okla. 1985)
- Arrowhead Energy Company v. Baron Exploration Company, 930 P.2d 181 (Okla. 1997)
- Pitco Production Co. v. Chaparral Energy, 63 P.3d 541 (Okla. 2003)
- Fox v. Maulding, 112 F. 3d 453 (10th Cir. 1997)
- Home-Stake Production Co. v. Talon Petroleum, CA, 907 F. 2d 1012 (10th Cir. 1990)
- Sac and Fox Tribe of Indians of Oklahoma v. Apex Const. Co., Inc., 757 F.2d 221 (10th Cir. 1985)
- Harding & Shelton, Inc. v. Prospective Inv. and Trading Co., 123 P.3d 56 (Okla. Civ. App. 2005)
- Representative Clients:
- Chaparral Energy, LLC
- Harding & Shelton, Inc.
- Marlin Oil Corporation
- Baron Exploration Company
- Newfield Exploration Mid-Continent, Inc.
- Stephens Production Company
- Professional Associations and Memberships:
- Oklahoma County Bar Association
- Member
- Oklahoma Bar Association
- Member
- American Bar Association
- Member
- Oklahoma City Mineral Lawyers Society
- Member
- Oklahoma City Mineral Lawyers Society, 1990 - 1991
- President
- First Presbyterian Church of Norman
- Trustee and Foundation Member
- Oklahoma City Association of Petroleum Landmen
- Member
- Tulsa Association of Petroleum Landmen
- Member
- Oklahoma Independent Petroleum Association
- Member
- Fraternities/Sororities:
- Phi Delta Phi
- Tau Beta Pi
- Alpha Pi Mu
