William Massey

William L. Massey

Senior Counsel

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Covington & Burling LLP
One CityCenter
850 Tenth Street, NW
Washington, DC 20001-4956
Tel: +1 202 662 5322



  • Georgetown University Law Center, LL.M., 1985
  • University of Arkansas, Fayetteville, Leflar Law Center, J.D., 1973

Judicial Clerkship

  • Hon. Richard S. Arnold, U.S. Court of Appeals, Eighth Circuit, 1978-1980

Bar Admissions

  • Arkansas
  • District of Columbia

Before joining Covington as head of its energy practice, William Massey served as a Commissioner at the Federal Energy Regulatory Commission (FERC) for over ten years.

Working out of Covington’s Washington, DC office, Mr. Massey has a high profile, broad-based energy regulatory and government affairs practice.  He has extensive experience with complex regulatory issues before FERC and state utility commissions, and with energy legislative matters before Congress and state general assemblies.

Mr. Massey advises clients on mergers and acquisitions, enforcement and investigations, electricity and natural gas markets, energy exports, wholesale and retail market structure, transmission and pipeline infrastructure investment, RTO tariffs, and legislative strategy at the federal and state levels.

Mr. Massey's clients include investment firms and banks, utilities, independent power producers, pipelines and shippers, oil and gas companies, project developers, gas and electricity marketers, customers, and energy companies on a wide variety of energy matters.  He also serves as outside counsel to a large and diverse coalition of energy companies, demand response providers and customers that support well-structured energy markets.

Mr. Massey has been recognized by Chambers and Chambers Global, Best Lawyers in America, Legal 500 US for Energy, and as a Washington, DC Super Lawyer.

Drawing on over 30 years as a Washington insider and counselor, including almost a decade as Chief Counsel to a prominent U.S. Senator, Mr. Massey understands the intersection of policy, legislation and regulation.  He offers a highly effective combination of strategic, legal and policy skills to his clients.

Representative Matters

  • COMPETE Coalition, a 720 member organization whose members include Exelon, PPL Energy, Calpine, Wal-Mart, Safeway, PSEG and Texas Energy, on a wide range of FERC and state regulatory matters involving capacity markets, wholesale and retail market structure, demand response policy, electricity rates, RTO markets and transparency issues.
  • A large bank in an ongoing non-public and wide ranging investigation by the FERC Office of Enforcement alleging manipulative bidding of electric generation into certain RTO markets.
  • Pepco Holdings, Inc. on the negotiation and sale of its 3800 MW Conectiv Energy wholesale power generation business to Calpine Corporation, including securing the necessary FERC approval under the Federal Power Act.
  • Texas Energy Future Holdings in an audit by FERC Enforcement's Audit Division regarding compliance with the terms of FERC's order approving the nation's largest leveraged buy-out (the acquisition of Texas Utilities Corp.).
  • Foreign investment fund in successfully obtaining orders from FERC and the New York PSC approving its acquisition of a 15% interest in AES Corporation.
  • A large oil and gas producer with respect to the FERC and DOE policies, procedures and approval requirements for the export of natural gas to non-FTA countries.
  • Public Service Enterprise Group (PSEG), a New Jersey electric and gas utility, with respect to a range of FERC matters including financial incentives and favorable regulatory treatments for large transmission projects, cost allocation policy for certain transmission investments, and market based rates for a new generation project.

Previous Experience

  • Federal Energy Regulatory Commission (FERC), Commissioner (1993-2003)
  • U.S. Senator Dale Bumpers (D-Ark), Chief Counsel and Legislative Director (1980-1989)

Honors and Rankings

  • Chambers, Energy/Electricity (2008-2015)
  • Chambers, Energy/Oil & Gas (2009-2015)
  • Chambers Global, Energy - Electricity: Regulatory & Litigation (US) (2012-2015)
  • Best Lawyers in America, Energy (2007-2016)
  • Washington DC Super Lawyers, Energy & Natural Resources (2010, 2013-2015)
  • Recognized by the Legal 500 US for Energy: Regulatory (2012-2015) and Litigation (2012-2014)

Memberships and Affiliations

  • Georgetown University Law Center, Adjunct Professor of Law
  • Energy Bar Association
  • District of Columbia Bar Association

Publications and Speeches

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