Heidi K. Ruckriegle


Heidi K. Ruckriegle

Senior Associate

Heidi Ruckriegle's practice centers on internal investigations and regulatory matters with a focus on energy, natural resources and infrastructure. Ms. Ruckriegle has represented major corporations in criminal and civil matters in connection with inquiries conducted by the Department of Justice, Securities and Exchange Commission, US Congress, and other US and international agencies. Ms. Ruckriegle has experience in financial fraud investigations and Foreign Corrupt Practices Act inquiries, and she has provided strategic counsel to companies facing complex regulatory issues and advised global natural resource companies on anti-corruption policies and compliance. 

Across the West, Ms. Ruckriegle represents clients in oil and gas development, mining projects, transmission infrastructure, renewable energy infrastructure, and water law on private and public lands. She also counsels clients on various recreation matters, including advising ski areas on environmental issues and land use permitting and development. Ms. Ruckriegle's regional, national and international experience spans all stages of permitting, development and compliance for clients.

Ms. Ruckriegle began her legal career as a law clerk to the honorable Gregory J. Hobbs, Jr., of the Colorado Supreme Court. Prior to joining WilmerHale, Ms. Ruckriegle practiced at a boutique natural resources firm, where she advised on administrative law matters and supported shareholders in representation of clients in federal court and before the Departments of the Interior and Energy, the Bureau of Land Management, and the United States Forest Service, as well as in state court and before state agencies and commissions. She also conducted research and advised on the Federal Land Policy Management Act, National Environmental Policy Act, Endangered Species Act, National Historic Preservation Act and Clean Water Act.


  • "Mountain Biking into the Wilderness," Colorado Natural Resources, Energy and Environmental Law Review, Vol. 28., Issue No. 1
  • Co-Author, "Ethical Issues in Enforcement Proceedings," Rocky Mountain Mineral Law Foundation Journal, Vol. 53, Issue No. 2
  • Co-Author, "Public Domain Lands Available for Leasing," American Law of Mining, Chapter 7, 2016 Edition
  • Co-Author, "Conflicts Between Natural Resources and Surface Development," Environmental Regulation of Colorado Real Property, Chapter 17, 2016 Edition
  • Co-Author, "The Problem of Housing in Popular Tourist Destinations: Contrasting North American and European Experiences," 45 Urban Lawyer 849 (2013)
  • Co-Author, "The Clean Water Act and the Challenge of Agricultural Pollution," 37 Vermont Law Review 1033 (2013)

Professional Activities

Ms. Ruckriegle is admitted to practice at the state and federal levels in Colorado and Wyoming and before the United States Court of Appeals for the Tenth Circuit. 

Ms. Ruckriegle is a trustee to the Rocky Mountain Mineral Law Foundation, the chair of the Colorado Bar Association's Natural Resources and Energy Law Section, and the programs vice- chair of the American Bar Association Public Lands Committee. She serves on the Friends of the Colorado Avalanche Information Center Board and the University of Denver Sturm College of Law Alumni Council. She also the co-chair for the Rocky Mountain Mineral Law Foundation’s inaugural Young Natural Resources Lawyer and Landman Institute.


  • Recipient of 2020 Burton Award for legal writing
  • Recognized as one of Colorado’s 2019 Top Women in Energy by the Denver Business Journal.
  • Named one of Colorado’s 2018 “Up and Coming Lawyers” by Law Week Colorado. She was selected by the publication’s editors based on the strength of her client work, volunteer efforts and overall community impact.

Insights & News


  • Education

    • JD & LLM, University of Denver Sturm College of Law, 2014

      Sources Editor, University of Denver Water Law Review

    • BS, Spanish and Business, University of Colorado at Boulder, 2009

  • Admissions

    • Colorado

    • Wyoming

  • Clerkships

    • The Hon. Gregory J. Hobbs, Jr., Colorado Supreme Court, 2014 - 2015