Heidi K. Ruckriegle

Senior Associate

Heidi Ruckriegle

Heidi Ruckriegle's practice centers on natural resources, energy, environmental and public lands matters. She represents clients in oil and gas development, mining projects, transmission infrastructure, renewable energy infrastructure and water law. 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. Additionally, Ms. Ruckriegle addressed regulatory matters before the Colorado Oil & Gas Conservation Commission.

While in law school, Ms. Ruckriegle gained experience as a summer associate at another firm, where she focused on the intersection of energy development and the Endangered Species Act; served as a Commissioner with the Upper Blue Basin Planning Commission; interned for Judge Blackburn of the United States District Court for the District of Colorado; worked as a research assistant with the Rocky Mountain Mineral Law Foundation; and held internships with the Office of Regional Council's Environmental Protection Agency Region 8 and the Colorado Department of Natural Resources. 


  • "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 the Vice-Chair of the Colorado Bar Association's Natural Resources and Energy Law Section, Membership Vice-Chair of the American Bar Association Public Lands Committee, a Board Member with CoActive, a Board Member of the Colorado Chapter of Amigos de Las Americas, and serves on University of Denver Sturm College of Law's Alumni Council.

Publications & News


March 14, 2018

Regulatory Challenges Posed by Emerging Contaminants

In this article by WilmerHale's David Gold, Rachel Jacobson and Heidi Ruckriegle—along with Nikki Delude Roy of Golder Associates—published in the American Bar Association's Water Resources Committee Newsletter, the authors discuss the current and proposed standards for per-and polyfluoroalkyl substances in groundwater and other media.

January 24, 2018

SCOTUS: WOTUS Rule Suits Belong in District Courts

On January 22, 2018, the US Supreme Court unanimously held that challenges to the Obama-era Clean Water Rule, commonly referred to as the WOTUS Rule (for “waters of the United States”), must be filed in federal district courts rather than directly in federal appeals courts. The case is National Association of Manufacturers v. Department of Defense et al., case number 16-299.

July 31, 2017

WilmerHale Grows Denver Office With Addition of Energy, Environment and Natural Resources Attorney Heidi Ruckriegle

WilmerHale announced that it has added Heidi Ruckriegle as an associate attorney in the firm's Energy, Environment and Natural Resources Practice. The addition further strengthens the Denver office in a range of regulatory, litigation, legislative and transactional matters arising at the intersection of law, business, science and public policy.


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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

Bar Admissions






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

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