Morgan Lewis

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11/21/14 Recent Regulations Prompt Revamped FERC Pipeline Cost-Recovery Policy
FERC proposes to establish a framework that allows pipelines to use surcharge or tracker cost-recovery mechanisms to accelerate system improvements associated with new safety and environmental compliance regulations.
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Related News

12/01/11 Energy MVP: Morgan Lewis’ Mark Haskell, Law360
Morgan Lewis partner Mark Haskell is named one of Law360 's Energy MVPs.
11/16/11 Morgan Lewis Advises ConocoPhillips on Sale of Company's Interest in Seaway Crude Pipeline System as Part of $2 Billion Sale of U.S. Pipeline Assets
ConocoPhillips announced that it has entered into an agreement with Enbridge Inc. to sell its ownership interest in the Seaway Crude Pipeline System.
07/15/11 Morgan Lewis Serves as Co-Counsel to BHP Billiton on $12.1 Billion Acquisition of Petrohawk
Morgan Lewis served as co-counsel to BHP Billiton on a definitive agreement for BHP Billiton to acquire Petrohawk for $38.75 per share, representing a total equity value of approximately $12.1 billion and a total enterprise value of approximately $15.1 billion.
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Photo of  Mark R. Haskell

practice accolades


Listed as a Law Firm of the Year for Energy Law by U.S. News and Best Lawyers (2015)

honors + affiliations

Member, American Bar Association, Section of Energy, Environment and Resources (Vice Chair, Committee on Electric and Natural Gas Marketing 2000–2001; 2001–2002)

Energy Bar Association (Member, Board of Directors, 2001–2004)

1980 Harry S Truman Scholar, State of Maine

National Merit Scholar

Member, Phi Beta Kappa

Member, Phi Kappa Phi

Member, Alpha Lambda Delta

Listed, Chambers USA: America's Leading Lawyers for Business (2004–2014)

Listed, Chambers Global: The World’s Leading Lawyers (2004–2014)

Listed, The Best Lawyers in America (2006–2015)

Listed, Washington, D.C. Superlawyers, Energy and Natural Resources (2007–2014)

Listed, International Who’s Who Legal for Energy Lawyers (2013–2014)

Listed as a Law360 MVP in Energy Law (2011)

Listed, The Legal 500 United States (2012, 2014)

Co-Chair, Institute for Energy Law, Midstream Oil & Gas Conference, Houston, TX (2012–2014)

bar admissions

  • District of Columbia

Court Admissions

  • U.S. Supreme Court
print profile

Mark R. Haskell

Washington, D.C.
1111 Pennsylvania Ave., NW
Washington, DC 20004-2541
United States
Phone: +1.202.739.5766
Fax: +1.202.739.3001

Mark R. Haskell is a partner in Morgan Lewis's Energy Practice. Mr. Haskell's practice focuses on Federal Energy Regulatory Commission (FERC) matters, including FERC investigations, litigation and related court appeals, as well as Commodity Futures Trading Commission (CFTC) investigations affecting the energy industry.

A seasoned energy lawyer, Mr. Haskell has represented natural gas and power marketers, local distribution companies, end users, producers, industrial consumers, and LNG and shale gas developers in energy regulatory matters. 

In the natural gas area, Mr. Haskell has participated in litigation addressing interstate natural gas pipeline rates, terms and conditions of service, involving Florida Gas Transmission Company; Panhandle Eastern Pipe Line Company; Texas Eastern Transmission Corporation; Southern Star Central Pipeline Company; Maritimes and Northeast Pipeline; Kinder Morgan Interstate Gas Transmission Co.; Northwest Pipeline Company; and others. Mr. Haskell has assisted clients in a variety of rulemaking proceedings, including the development of FERC's anti-manipulation rules and pipeline restructuring under Order No. 637. He also has worked with LNG and shale gas developers to address commercial and regulatory issues in the U.S.

Mr. Haskell represents parties in litigation arising under the Interstate Commerce Act concerning rates, terms and conditions of service for regulated common carrier transportation of oil and natural gas liquids. He also has worked on petitions for declaratory orders to facilitate greenfield common carrier pipeline development projects. 

Mr. Haskell is actively involved in the firm's energy compliance and enforcement practice, including:

  • Managing FERC and CFTC investigations of physical and financial energy commodity trading;
  • Assisting in investigations of electric reliability related incidents;
  • Developing compliance plans;
  • Pursuing internal investigations;
  • Developing energy compliance training;
  • Conducting compliance related regulatory due diligence in connection with acquisitions, and
  • Counseling clients regarding the mandates of the Dodd-Frank Act.

Mr. Haskell has litigation experience in defense of gas and power refund claims associated with regulatory changes, market dislocations, and allegations of market manipulation.

Mr. Haskell possesses over 25 years of industry experience in matters relating to federal regulation of oil and natural gas, electric energy and ancillary services, and interstate pipeline safety and infrastructure. 

Mr. Haskell was recognized as a leading energy lawyer in Chambers USA: America's Leading Lawyers for Business (2004-2014); The Best Lawyers in America (2006-2015); and Washington D.C. Superlawyers (2007-2014).

Mr. Haskell is admitted to practice in the District of Columbia.


  • Harvard Law School, 1985, J.D.
  • University of Maine, 1982, B.A., With Highest Honors and Highest Distinction