Rhett A. Billingsley

Rhett practices in the areas of water, natural resources and environmental law.

His water law practice involves helping clients with water rights due diligence investigations, contracts and leases for the acquisition of water rights (including Colorado River entitlements), advising clients on underground water storage and recovery issues, negotiating and implementing water rights settlement agreements, obtaining permits and approvals from regulatory agencies, and negotiating, drafting and lobbying water resources legislation. Rhett has also represented clients in administrative and judicial appeals, the general stream adjudications and other complex water litigation.

Rhett’s environmental and natural resources practice involves helping clients on public land use issues, rulemaking processes, permitting and litigation under numerous state and federal law programs, including the Endangered Species Act, the Clean Water Act, NEPA, and FLPMA. He also represents clients on environmental cleanup and remediation issues, including environmental due diligence investigations and regulation of underground storage tanks.


  • J.D., summa cum laude, Arizona State University, Sandra Day O’Connor College of Law
  • B.S., summa cum laude, Biology, Arizona State University
  • Order of the Coif

Areas of Practice

We have over 130 years of experience representing clients in minerals development.

We have a long history in natural resources, energy and environmental law.


  • Indian Law
  • Water Law

Awards and Honors

  • Best Lawyers in America®, Environmental Law, Natural Resources Law, Water Law, 2013-2017
  • Southwest Rising Stars®, Energy and Natural Resources, 2012-2016

Articles And Presentations

  • Speaker, "Arizona Water Rights, Sales, and Transfers," Lorman Webinar, April 2016
  • Speaker, “Handling Water Rights Disputes,” CLE Presentation for National Business Institute, August 2015
  • Speaker, “Obtaining, Conveying and Changing Water Rights in Arizona,” CLE Presentation for National Business Institute, August 2015
  • Co-Author, “Clean Power Plan: Testing the Limits of EPA’s Clean Air Act Authority,” Natural Resources and Environmental, American Bar Association, Summer 2015
  • Co-Author, “Recent Progress on Arizona Indian Water Rights Settlements,” Rocky Mountain Mineral Law Foundation, Water Law Newsletter, Vol. XLVIII, Number 1, 2015
  • Speaker, “Tribal Water Rights,” CLE Presentation for National Business Institute, April 2015


  • Member, Rocky Mountain Mineral Law Foundation
  • Programs Co-Chair, State Bar of Arizona, Environmental and Natural Resources Law Section, Member, 2005-Present; Executive Council, 2011-Present
  • Board of Directors, Men's Arts Council of the Phoenix Art Museum, 2010-Present
  • Member, American Bar Association, Mining Committee, Co-Chair, 2009-2010; Chair, 2010-2012, Water Resources Committee, Vice Chair, 2012-2013


  • Arizona
  • U.S. District Court, District of Arizona