Raya B. Treiser

Raya Treiser is a partner in WilmerHale’s Energy, Environment and Natural Resources Practice. Ms. Treiser advises clients in navigating high-stakes oversight, regulatory and strategic matters. Prior to joining the firm, Ms. Treiser served in senior policy positions at the Department of the Interior (DOI) and the White House under President Obama, where she worked on energy and infrastructure policy.


Ms. Treiser represents companies, tribal governments and non-governmental organizations facing multifaceted legal challenges at the intersection of business, law and government. Ms. Treiser’s recent representations include:

  • Congressional Investigations. Advising the CEOs and senior executives of fortune 500 companies and non-governmental organizations on testifying before the United States Congress and responding to congressional inquiries.
  • Crisis Management. Leading multi-disciplinary teams to advise clients on crisis preparedness, mitigation and response.
  • Federal Permitting. Counseling project developers in connection with securing federal permits and approvals for significant onshore and offshore energy, natural resource, infrastructure, and real estate projects.
  • Internal Investigations. Handling complex and sensitive internal investigations.
  • Climate Change Policy. Advising clients in developing corporate policies and positions on various domestic and international policy proposals related to climate change.
  • Native American Tribes. Representing Native American tribes in matters related to tribal self-governance and self-determination.


Prior to joining WilmerHale, Ms. Treiser played a key role in developing and implementing federal energy and infrastructure policies at DOI and the Obama White House. Ms. Treiser was hand-picked to serve as part of a core leadership team at DOI responsible for the reform and reorganization of offshore drilling regulations in the aftermath of the 2010 Gulf of Mexico oil spill. She went on to serve in the Office of the Secretary of the Interior, where she was charged with leading efforts to streamline the permitting of renewable energy and transmission projects on public lands and shaping the first offshore wind lease areas along the Atlantic Coast.  Ms. Treiser was then selected by senior White House staff to lead a government-wide initiative to improve the federal review of large energy and infrastructure projects. In this role, she spearheaded a 13-agency initiative to improve federal permitting, which resulted in a government-wide plan, now codified in federal law under Title 41 of the Fixing America’s Surface Transportation Act (FAST-41).

Professional Activities

Ms. Treiser serves as co-chair of the American Bar Association's (ABA) Section of Environment, Energy, and Resources Public Land and Resources Committee. She also serves on the leadership teams of the ABA's Endangered Species and Mining and Mineral Extraction Committees. Within WilmerHale, Ms. Treiser serves on the Women Leadership Initiative and chairs WilmerHale’s annual Women in Energy conference.


  • Named a Washington DC "Rising Star" in the 2019 and 2020 editions of Super Lawyers
  • Selected by peers for inclusion in the 2018–2021 editions of the Best Lawyers in America for environmental law
  • Recognized in The Legal 500 United States for her energy regulatory practice in the area of oil and gas

Insights & News


  • Education

    • JD, Georgetown University Law Center, 2009

      cum laude
    • Master, Global Business Law, Sorbonne Law School and Sciences Po, 2008

    • BS, Georgetown University, 2005

      magna cum laude, School of Foreign Service
  • Admissions

    • District of Columbia

    • New York

  • Government Experience

    • Department of the Interior

      Counselor to the Deputy Secretary of the Interior
    • Executive Office of the President

      The White House

      Office of Management and Budget