LAWYER PROFILE
Gregory Krock

Gregory Krock

USA 2026

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Ranked in 1 practice area

About

Provided by Mayer Brown LLP

Practice Areas

A problem-solving trial lawyer with decades of experience, Gregory Krock represents energy companies throughout the United States before state, federal and appellate courts.

Greg's aggressive advocacy has resulted in courtroom success, and his broad and deep knowledge of the oil and gas industry often enables him to negotiate cost-effective business resolutions of his clients' disputes.

Greg served as lead counsel in Butler v. Powers, a landmark case in which the Pennsylvania Supreme Court upheld the state's "Dunham Rule" and preserved thousands of leases in the Marcellus Shale region. Since this victory, Greg has represented oil and gas companies in virtually all aspects of the industry: lease, toxic tort and insurance disputes involving Pennsylvania wells; pipeline disputes in West Virginia and Ohio; class action royalty and pipeline disputes in Wyoming; injunction matters in Texas involving offshore platforms and wells; and commodities trading lawsuits in New York and Texas.

Greg also represents corporate clients embroiled in financial, contract, trade secret and shareholder disputes. Additionally, he assists in matters involving First Amendment issues faced by public transit agencies.

Chambers Review

Provided by Chambers

Chambers Guide to the USA

Energy & Natural Resources - Pennsylvania

Band 2
Band 2

Individual Editorial

Gregory Krock excels in contentious matters, with clients regularly turning to him in disputes involving oil and gas, coal and electric utilities.

Strengths

Provided by Chambers

  • Greg knows the area of oil and gas very well.

    Energy & Natural ResourcesChambers Guide to the USA

Ranked Individuals at Mayer Brown LLP (182)

California

California: Northern

District of Columbia

Illinois

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