People / Chris Reagen
Reagan Chris

Chris Reagen

Chris Reagen is a member of the Energy, Power and Natural Resources Practice Group and assists clients in transactions involving the acquisition, development, and disposition of energy assets and mining properties, including rare earth minerals. With a broad natural resources transactional practice, Chris has counseled clients in joint ventures to develop oil and gas properties, farmout agreements, purchase and sale agreements, joint development agreements, and crude oil purchase agreements. Chris has also represented upstream and midstream companies in gathering and transportation agreements and lenders and borrowers in energy finance matters.

Chris is the chair of our Indian Law Practice Group, guiding clients across industries in navigating the regulatory framework governing transactions with Indian tribes with significant experience involving the development of oil and gas resources on tribal lands. Prior to joining the firm, Chris represented some of the largest energy-producing Indian tribes in a broad range of issues related to the development of tribal natural resources.

Chris authored “The Water Transfers Rule: How an EPA Rule Threatens to Undermine the Clean Water Act,” which was published in the University of Colorado Law Review in 2011.

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  • Judicial Performance Commission for the Second Judicial District
  • Denver Bar Association
  • Colorado Bar Association
  • The Foundation for Natural Resources and Energy Law
  • Volunteer, Denver Indian Law Center
  • Included in the "Ones to Watch" category of Best Lawyers in America, Woodward/White, Inc., Energy Law and Oil and Gas Law, 2021-2024, Natural Resources Law, 2023-2024; Native American Law, 2024
  • "Getting the Deal Through: Mining 2022 (United States)," co-author, Getting the Deal Through, Lexology, July 2022 (and previous editions, 2016-2021).
  • "Hiding in Plain View," co-author, World Pipelines, October 2017.
  • “The Water Transfers Rule: How an EPA Rule Threatens to Undermine the Clean Water Act,” author, 83 U. Colo. L. Rev. 307, 2011.


J.D., University of Colorado Law School, 2012, Law Review, Casenote and Comment Editor

B.A., History, Classics, State University of New York at Buffalo, 2007



Court Admissions

U.S. Court of Appeals for the Tenth Circuit

U.S. District Court for the District of Colorado

Press Release
Haynes Boone Promotes 22 Lawyers to Counsel
May 01, 2024

Haynes and Boone, LLP’s 2024 counsel class is among the largest in the firm’s history, with 22 associates promoted to counsel this spring, effective May 1. The multinational group, which is comprised of 54 percent women and 41 percent ethnically diverse lawyers, includes representation from a wide array of practice areas and locations. The lawyers practice in more than a dozen groups, with six in [...]