Andrew Weissman


Education and Clerkships

J.D., Harvard Law School, 1974, cum laude

A.B., University of Michigan, 1971, with high distinction

Bar Admissions

District of Columbia, 1975


Andrew Weissman is counsel at Haynes and Boone. During the course of his more than 30-year career, Andy has helped to transform energy and environmental policy at the state and federal level and to develop innovative new structures for major energy transactions. He works with clients to solve complex business, legal and regulatory problems by successfully devising unique "out of the box" solutions.

As an attorney and energy market analyst, Andy has provided strategic advice and counseling to more than fifty major power producers, financial players, major electric and gas utilities, independent oil and gas producers, coal producers, energy traders, hedge funds, retail and wholesale energy marketers, equipment vendors and large energy users, typically at the CEO level, advising these clients on many of the highest stakes issues affecting the energy industry.

Andy continually focuses on identifying major developing trends in the natural gas, oil, electricity and coal markets. During the period immediately after enactment of Title IV of the Clean Air Act, he also pioneered the use of emissions trading in the United States, structuring many of the initial transactions, including the first publicly announced transaction. More recently, he played a key role in path-breaking efforts to substitute use of natural gas-fired generation for more than 1,000 MW of coal in Denver, Colorado.

During his career, Andy has worked to craft major state and federal energy regulatory programs, develop high profile federal and state energy and environmental legislation, help to create new financing mechanisms for large energy projects, expand access to the transmission grid, increase competition in wholesale and retail electricity markets and ensure rate recovery for major capital expenditures for environmental compliance.

In addition, Andy has been lead attorney in major multi-year litigation efforts involving hundreds of millions of dollars in claims, briefed major cases before the U.S. Supreme Court and the U.S. Court of Appeals, directed two of the most intensive investigations ever undertaken regarding management practices at nuclear plants (involving the Seabrook Nuclear Plant in New Hampshire and the Pilgrim Nuclear Plant in Massachusetts) and been the lead attorney in numerous high profile regulatory proceedings before the Federal Energy Regulatory Commission and state public utility commissions. He also has appeared as an expert witness in regulatory commission proceedings and high stakes commercial litigation.

Andy is Editor-in-Chief and Publisher of Energy Business Watch, a market advisory service that provides in-depth, cutting-edge analyzes of the U.S. and global oil and natural gas markets.

Presentations and Speeches

Andy lectures frequently on energy industry topics and has written a series of path-breaking articles on the emerging U.S. and global energy crisis that have received widespread attention within the energy industry.

Industry Groups

  • American Law Institute - American Bar Association Joint Program on Climate Change and the Law
  • ALI-ABA 42nd Annual Advanced Course of Study on Environmental Law - Environmental Regulation of Energy
  • Environmental Law Institute - From Coal to Gas - Whether, When, How
  • Corporate Environmental, Health and Safety Roundtable
  • American Chemistry Society
  • 6th Annual Northern Ohio Energy Management Conference
  • Utility Workers Union of American
  • Atlantic Council
  • California League of Food Processors
  • Pennsylvania Oil & Gas Association
  • National Association of Regulatory Commissioners (NARUC) (on multiple occasions)
  • NARUC-DOE National Electricity Delivery Forum
  • Joint Meeting of the CEOs and Boards of Directors of the North American Grid Operators
  • National Rural Electric Co-Operative Association (NRECA) (on multiple occasions)
  • Harvard Electricity Program
  • Citibank Annual Forum for CFOs
  • American Bankers Association Summer Meeting
  • National Regulatory Conference
  • Edison Electric Institute's Legal Affairs Committee
  • EEI's National Accounts Program
  • Western Governors' Association
  • National Mining Association
  • National Coal Transportation Association
  • American Coal Council
  • National Western Mining Conference
  • Independent Petroleum Association of Mountain States
  • New Mexico Oil & Gas Association
  • Ohio Oil & Gas Association
  • American Public Gas Supply Association
  • Florida Gas Supply Association
  • Eastern Law & Minerals Institute
  • Coal Outlook's Annual Conferences
  • Deloitte Touché Annual Energy Conference
  • Calyon Energy Conference
  • Annual Meeting of the Electric Consumers of America (ELCON)
  • Industrial Energy Consumers of America
  • Silicon Valley Leadership Group

Government Agencies

  • U.S. Department of Energy's Energy Information Administration (EIA)
  • Department of Energy's National Renewable Energy Laboratory (NREL)
  • Federal Energy Regulatory Commission’s Office of Market Oversight & Investigation (OMOI)
  • U.S. Central Intelligence Agency (CIA)
  • A joint workshop on LNG sponsored by the California Energy Commission (CEC), the California Public Utility Commission (CPUC) and the California Resources Authority (CRA), (asked to appear as an expert witness by the Staff of the CEC)


  • Joint Energy Symposium held by Duke University and the University of North Carolina held at Duke University
  • Special programs at Carnegie-Mellon University, the University of New Mexico Law School and the University of Toledo Law School
  • Faculty for the Institute of Public Utilities Annual Regulatory Studies Program at Michigan State University ("Camp NARUC")
  • Guest lecturer at the University of California's Boalt Law School in Berkeley, California and the Vermont Law School in South Royalton, Vermont


  • Second Trial Court Upholds Local Zoning Authority Over the Development of the Marcellus Shale in New York, Client Advisory, March 5, 2012. 
  • Court Fires First Shot in Local Authority Battle Over the Development of the Marcellus Shale in New York, Client Advisory, February 24, 2012. 
  • CSAPR Is Stayed – What Are The Real World Ramifications?, Client Advisory, February 3, 2012. 

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