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Margaret A. Swimmer Of Counsel

T 918-594-0426 | F 918-594-0505 | mswimmer@hallestill.com

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Margaret Swimmer is a 30-year Indian Law attorney and has an individual AV rating through Martindale-Hubbell. Throughout her career she has negotiated the successful lease of thousands of Indian acres for a major oil and gas project; negotiated a major Indian lease for eight major utilities, obtained Bureau of Indian Affairs approval and successfully defended leases in administrative procedures and Federal Court appeals; and served as a liaison in working with Tribe's negotiating of gaming. Margaret has been ranked in Native American Law by Chambers USA and has been named a Best Lawyer in America in Native American Law.

Margaret is a frequent author and speaker. Highlights of these events include:

  • Co-author and Speaker, “Business Transactions in Indian Country,” Sovereignty Symposium VIII (1995)
  • Speaker, Fourth Annual Native American Law Symposium, University of Utah College of Law, “Nuclear and Hazardous Waste and Environmental Regulation in Indian Country,” (1998)
  • Speaker and Coordinator, Tulsa County Bar Association CLE, “Indian Law,” (1999)
  • Co-author and Speaker, “Indian and Federal Oil and Gas Leasing and Royalty Valuation,” NADOA 20th Annual Institute Journal, Volume 5 (1993)
  • Co-Speaker, Conference of Accountants, University of Tulsa, April 2006

Education

  • University of Tulsa College of Law (J.D., with honors, 1983)
  • University of Oklahoma (M.S.W., 1969)
  • University of Oklahoma (Social Work, with honors, 1966)

Admissions

  • Cherokee Tribal Court
  • Oklahoma, 1983
  • Oklahoma Supreme Court
  • U.S. District Court for the Northern and Eastern Districts of Oklahoma
  • United States Court of Appeals for the Tenth Circuit
Community Involvement
  • Oklahoma Women's Commission
  • Member, Advisory Board, Alzheimer's Association
  • Member, Board of Directors, Tulsa Historical Society
  • Various other community activities
Legal Experience
  • 1984 - Present Hall Estill - Indian Law
  • 1984 Assistant General Counsel, Turner Coal Company
  • 1983 - 1984 Hall Estill - Energy Department
Professional Involvement
  • American Bar Association
  • Oklahoma Bar Association - Member/Indian Law Section
  • Tulsa County Bar Association
  • Oklahoma Indian Bar
Teaching/Lecture Experience
  • Co-author and Speaker, "Business Transactions in Indian Country," Sovereignty Symposium VIII (1995)
  • Speaker, Fourth Annual Native American Law Symposium, University of Utah College of Law, "Nuclear and Hazardous Waste and Environmental Regulation in Indian Country," (1998)
  • Speaker and Coordinator, Tulsa County Bar Association CLE, "Indian Law," (1999)
  • Co-author and Speaker, "Indian and Federal Oil and Gas Leasing and Royalty Valuation," NADOA 20th Annual Institute Journal, Volume 5 (1993)
  • Co-Speaker, Conference of Accountants, University of Tulsa, April 2006
Honors & Awards

  • 2015 Best Lawyers Lawyer of the Year - Native American Law- Tulsa