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Morgan, Lewis & Bockius LLP

John K. Gisleson

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Morgan, Lewis & Bockius LLP

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John Gisleson is a partner in the environmental practice at Morgan Lewis. With a particular focus on energy, environmental, construction, and financial matters, he represents clients across a range of business litigation issues. He has tried cases in the construction, energy, environmental, financial institution, manufacturing, real estate, retail, securities, and waste industries. John has served as lead trial counsel in both defending and prosecuting matters, and has represented clients in arbitration. For more information, view his bio at


John is a fellow of the Academy of Trial Lawyers of Allegheny County, an organization limited to 250 elected lawyers engaged in civil trial practice in US state and federal courts.


University of Notre Dame, 1988, B.A., cum laude; Catholic University of America, Columbus School of Law, 1991, J.D.

United States: Industry focus

Energy litigation: conventional power

Within: Energy litigation: conventional power

Defending Southern California Gas Company in multiple lawsuits arising from the high-profile Aliso Canyon storage leak has formed a large portion of Morgan, Lewis & Bockius LLP's recent work. Notably, Los Angeles-based Jim Dragna and others succeeded in reaching a $8.5m settlement for the client with California’s South Coast Air Quality Management District. Elsewhere, a group led by DC-based Brad Fagg successfully represented Duke Energy in a class action in which the plaintiffs sought class certification for over a million customers, injunctive relief and the disgorgement of rates collected under Florida’s Nuclear Cost Recovery System. Besides these highlights, the team handles commercial litigation and breach-of-contract cases for conventional energy clients. Michelle Pector (Houston), John Gisleson (Pittsburgh) and Ezra Church (Philadelphia) are also recommended. The group was fortified by numerous promotions and new additions to the litigation practice in 2018.

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Energy litigation: oil and gas

Within: Energy litigation: oil and gas

International arbitration, construction-related litigation, regulatory litigation and enforcement proceedings are some key areas of activity for Morgan, Lewis & Bockius LLP's energy litigation practice. Recent highlights include a team led by Jim Dragna (Los Angeles) and Bryan Killian  (DC) acting for Anadarko Petroleum in six climate change lawsuits brought by municipalities and cities in California; the cases are currently on appeal at the Ninth Circuit. Elsewhere, Pittsburgh-based John Gisleson and others are representing Noble Energy in a statewide class action arising from the allegation that the client underpaid natural gas royalties to certain royalty owners, who are claiming millions of dollars in damages. Brad Fagg (DC), Michelle Pector (Houston) and Winstol Carter (Houston) are some key contacts. A number of internal promotions and additions have reinforced the team; of particular note is the arrival of Kenneth Polite in the Philadelphia office, who was former vice president and chief compliance officer at Entergy.

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Environment: litigation

Within: Environment: litigation

‚ÄėShrewd, responsive and exceedingly well prepared‚Äô, Morgan, Lewis & Bockius LLP¬†handles high-stakes complex matters involving environmental litigation, crisis management, mass tort, multiparty hazardous waste proceedings and compliance issues. It is representing key client Anadarko Petroleum in three lawsuits seeking damages and other relief for the alleged climate change impacts of oil and gas exploration and development; respected Los Angeles-based practice head James Dragna¬†leads the case. In Pittsburgh,¬†John Gisleson¬†is recommended. David Schrader¬†in Los Angeles, deputy practice leader John McGahren¬†in Princeton, and Thomas Lotterman¬†and Duke McCall¬†in Washington DC, are other names to note. Camarin Madigan¬†moved to Perkins Coie LLP¬†in February 2019.

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