Gregory L. Mahaffey - Oklahoma City, OK

Awards and Honors

Super Lawyers® Selectees

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Gregory L. Mahaffey included in a Super Lawyers® list

Education

• Legal Education

  • University of Oklahoma College of Law, Norman, Oklahoma, 1975
    J.D.

• Non Legal Education

  • Texas Tech University, 1972
    B.S.I.E.

Current Employment Position(s)

• Shareholder

References

• Bank of America

• IBC Bank

• Merrill Lynch

Representative Clients

• EOG Resources, Inc.

• Marlin Oil Corporation

• Ovintiv USA, Inc.

• Oxley Energy, LLC

• Stephens Production Company

Representative Cases

• Withrow v. Red Eagle Oil Co.
  • Citation: 755 P.2d 622
  • Court: Oklahoma
  • Year: 1988
  • Serial Number: 1988027248
• Stolz Wagner & Brown v. J. Walter Duncan
  • Citation: 417 F. Supp. 552
  • Court: W.D. Oklahoma
  • Year: 1976
  • Serial Number: 1976126817
• PCX Corporation v. Oklahoma Corporation Commission
  • Citation: 699 P. 2d 1103
  • Court: Oklahoma Court of Civil Appeals
  • Year: 1984
• LPCX Corp. v. Faulkner
  • Citation: 818 P.2d 431
  • Court: Oklahoma
  • Year: 1991
  • Serial Number: 1991093435
• French Petroleum v. Oklahoma Corporation Commission
  • Citation: 805 P.2d 650
  • Court: Oklahoma
  • Year: 1991
  • Serial Number: 1991024549
• Nilsen v. Ports of Call Oil Company
  • Citation: 711 P.2d 98
  • Court: Oklahoma
  • Year: 1985
  • Serial Number: 1985162055
• Arrowhead Energy Company v. Baron Exploration Company
  • Citation: 930 P.2d 181
  • Court: Oklahoma
  • Year: 1997
  • Serial Number: 1996242036
• Pitco Production Co. v. Chaparral Energy
  • Citation: 63 P.3d 541
  • Court: Oklahoma
  • Year: 2003
• Fox v. Maulding
  • Citation: 112 F. 3d 453
  • Court: 10th Cir.
  • Year: 1997
• Home-Stake Production Co. v. Talon Petroleum, CA
  • Citation: 907 F. 2d 1012
  • Court: 10th Cir.
  • Year: 1990
• Sac and Fox Tribe of Indians of Oklahoma v. Apex Const. Co., Inc.
  • Citation: 757 F.2d 221
  • Court: 10th Cir.
  • Year: 1985
• Harding & Shelton, Inc. v. Prospective Inv. and Trading Co.
  • Citation: 123 P.3d 56
  • Court: Oklahoma Court of Civil Appeals
  • Year: 2005

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

Other Affiliations

• Oklahoma County Bar Association (Member)
• Oklahoma Bar Association (Member)
• American Bar Association (Member)
• Mineral Lawyers Society of Oklahoma City in Oklahoma City, Oklahoma (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)
• Litigation Counsel of America, Fellow in Trial Lawyer Honorary Society