Gregory L. Mahaffey

Gregory L. Mahaffey: Attorney with Mahaffey & Gore, P.C.
  • Shareholder at Mahaffey & Gore, P.C.
  • 300 N.E. 1st Street, Oklahoma City, OK 73104-4004
    View Gregory L. Mahaffey's office location
  • Peer Reviews
    Client Reviews
    No Reviews
  • Profile Visibility [ i ]


Tau Beta Pi; Alpha Pi Mu; Phi Delta Phi.

Areas of Practice (4)

  • Administrative Law
  • Oklahoma Corporation Commission Law
  • Civil Litigation
  • Appellate Practice

Education & Credentials

Contact Information:
405-213-0265  Phone
405-236-1840  Fax
University Attended:
Texas Tech University, B.S.I.E., 1972
Law School Attended:
Oklahoma State University; University of Oklahoma, J.D., 1975
Year of First Admission:
1978, U.S. District Court, Eastern District of Oklahoma and U.S. Court of Appeals, Tenth Circuit; 1975, Oklahoma and U.S. District Court, Northern and Western Districts of Oklahoma; 1985, U.S. Supreme Court
Oklahoma County, Oklahoma and American Bar Associations; Mineral Lawyers Group (Member, President, 1990-1991).
Birth Information:
Fort Worth, Texas, 1950
Reported Cases:
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. App. 1984); LPCX Corp. vs. Faulkner, 818 P.2d 431 (Okla. 1991): Withrow vs. Red Eagle Oil Co., 755 P.2d 622 (Okla. 1988); Home-Stake Production Co. v. Talon Petroleum, CA, 907 F. 2d 1012 (10th Cir. 1990); 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); 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); Sundown Energy, L.P. v. Harding & Shelton, Inc., 245 P.3d 1226 (Okla. 2010).
Hobbies & interests:
Flying, golf, fly fishing
Payment Information:

    Peer Reviews

    • 5.0/5.0
    • A Martindale-Hubbell Peer Rating reflects a combination of achieving a Very High General Ethical Standards rating and a Legal Ability numerical rating.

    *Peer Reviews provided before April 15, 2008 are not displayed.

    Client Reviews

    This attorney does not have client reviews.

    Oklahoma City, Oklahoma

    Contact Gregory L. Mahaffey

    Required Fields

    Required Fields

    By clicking on the "Submit" button, you agree to the Terms of Use, Supplemental Terms and Privacy Policy. You also consent to be contacted at the phone number you provided, including by autodials, text messages and/or pre-recorded calls, from Martindale and its affiliates and from or on behalf of attorneys you request or contact through this site. Consent is not a condition of purchase.

    You should not send any sensitive or confidential information through this site. Emails sent through this site do not create an attorney-client relationship and may not be treated as privileged or confidential. The lawyer or law firm you are contacting is not required to, and may choose not to, accept you as a client. The Internet is not necessarily secure and emails sent though this site could be intercepted or read by third parties.