Gregory L. Mahaffey

Gregory L. Mahaffey

Member and President
Location:
Oklahoma City, Oklahoma
Phone:
405-694-4472
888-792-5235
Fax:
405-236-1520
405-236-1840
Email:

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

Litigation Percentage

  • 50% of Practice Devoted to Litigation

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
    • J.D. - 1975
  • Texas Tech University
    • B.S.I.E. - 1972

Representative Clients

  • Chaparral Energy, LLC
  • Harding & Shelton, Inc.
  • Marlin Oil Corporation
  • Baron Exploration Company
  • Newfield Exploration Mid-Continent, Inc.
  • Stephens Production Company

References

  • Bank of America
  • IBC Bank
  • Merrill Lynch

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, President, 1990 - 1991
  • 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