Gregory J. Krock Partner

Greg Krock is an accomplished litigator who represents clients in matters involving the oil and gas, electric utilities, coal and commodity trading industries. His experience includes litigating contract disputes, unfair competition claims, toxic tort cases, and lease disputes before state, federal and appellate courts.

Greg is well-known in the energy market for his expertise litigating disputes which occur throughout the lifecycle of oil and gas production – from access to mineral rights to supply contracts. For example, Greg has litigated lease disputes with landowners (including bad faith pooling cases), toxic tort claims involving hydraulic fracturing, multi-million dollar contract disputes between drilling companies and their contractors, unfair competition claims against a natural gas service provider, and a myriad of disputes involving the construction of natural gas pipelines.

Greg served as lead counsel in Butler v. Powers, in which the Pennsylvania Supreme Court ruled for Krock’s client, preserving the state’s so-called “Dunham Rule” and affirming that natural gas rights are separate from mineral rights in the state. The opinion protected thousands of lease deals between landowners and developers in the state’s Marcellus Shale region.

In addition to his energy litigation practice, Greg has litigated disputes involving unfair competition, covenants not to compete, trade secrets and confidentiality agreements.  He has also represented corporate clients embroiled in financial, contract and shareholder disputes.

In light of his energy-related experience, Greg has repeatedly been asked to speak and comment on oil and gas developments in the Appalachian region.  He also periodically speaks at seminars involving restrictive covenants and the protection of trade secrets. 


Energy Experience

Obtained allowance of appeal and then prevailed in the Pennsylvania Supreme Court in the highly-publicized Butler case involving whether a reference to “minerals” in deed includes Marcellus Shale gas.

Obtained a defense verdict in an arbitration in which the plaintiff sought to recover approximately $8 million in damages arising from an oil and gas company's alleged bad faith unitization.

Defended one of the largest national gas producers in the United States in a lawsuit involving the alleged underpayment of royalties.

Represented an oil producer in an arbitration involving the calculation of working interest payments associated with wells in North Dakota.

Assisted an oil and gas services company in responding to grand jury subpoenas involving the construction of an interstate pipeline.

Defended a natural gas producer in an alleged price manipulation and fiduciary duty lawsuit in West Virginia.

Represented an oilfield service company in multiple lawsuits involving the construction of the Mariner East Pipeline in Pennsylvania.

Represented an oil and gas trade association in litigation involving the constitutionality of the well permitting process in Pennsylvania.

Obtained summary judgement on behalf of drilling service companies in a toxic tort action involving the alleged release of hydraulic fracturing chemicals.

Obtained a defense verdict on behalf of an international commodities trading company in a three-day trial involving a multimillion dollar dispute. The trial involved issues of first impression regarding the cancellation of book transfers in the petroleum industry.

Obtained a $220 million verdict in a five-week jury trial involving a breach of contract and fraudulent misrepresentation associated with the coal, coke and steel industry. The verdict, which included $100 million in punitive damages, was reported by the National Law Journal’s VerdictSearch to be the seventh-largest jury verdict in 2007.

Obtained a defense verdict in a landowner's lawsuit to cancel and oil and gas lease for failure to timely remit delay rentals.

Defended an electric utility in several multi-million dollar lawsuits arising out of contact with overhead power lines.

Handled a five-day arbitration involving a $100 million dispute in conjunction with a long-term coal supply agreement.

Obtained the dismissal of an action against an oil and gas engineering company involving trade secrets and unfair competition.

Commercial Litigation Experience

Represented an international tire manufacturer in a contract and trademark infringement dispute with its joint venture partner.

Represented a security alarm financing company in a multi-million dollar fraud action to prevent a debtor from avoiding its obligations.

Secured the dismissal of negligence and fiduciary duty claims against a national bank involving allegedly unauthorized withdrawals.

Secured the dismissal of an action against the FDIC seeking to rescind the sale of banking assets.

Obtained a non-jury verdict on behalf of a national roofing company to recover money converted by its joint venture partner.

Represented employers in enjoining or otherwise remedying their former employees' violation of their restrictive covenant agreements, misappropriation of trade secrets, or unfair competition.

Defended an international accounting firm in a professional negligence action brought by the producer of coke for use in the steelmaking process.  The two-week jury trial involved novel issues surrounding the monetization of tax credits available for unconventional fuels.

Defended a transit company in First Amendment actions arising out of its advertising policy.

Secured an order dismissing a $5 million breach of contract claim against a national transportation company.  The dismissal was affirmed the Superior Court of Pennsylvania.

  • University of Pittsburgh School of Law, JD, magna cum laude, Order of the Coif, Editor, Law Review, 1996
  • The University of North Carolina at Chapel Hill, BS, with distinction, Phi Beta Kappa, 1993

Member, Energy and Mineral Law Foundation

Member, Allegheny County Bar Association

Member, American Bar Association

Member, Marcellus Shale Coalition

Mentor, Leadership Council on Legal Diversity

Pro bono counsel, Protection From Abuse program, Neighborhood Legal Services Association

Former Board Member, Bridgeville Public Library

  • Speaker, "Midstream Litigation Update," 12th Law of Shale Plays Conference, September 1-2, 2021
  • Speaker, "Does COVID-19 Excuse Performance of Oil and Gas Contracts? A Primer on Force Majeure and Related Doctrines," 11th Law of Shale Plays Conference, September 10, 2020
  • Moderator and Speaker, "Hydraulic Fracturing Disputes and Litigation," Half Moon Education Inc., August 2015
  • Speaker, "Unconventional Oil & Gas Litigation – A Look Backwards and Forwards," ABA Roundtable, March 2014
  • Speaker, "Restrictive Covenants and Computer Forensics," Pennsylvania Bar Institute, December 2013
  • Speaker, "Litigation Update Panel," 4th Law of Shale Plays Conference, Institute for Energy Law, June 2013
  • Speaker, "The Dunham Rule Lives! Pa. Supreme Court Ruling in Butler v. Powers and Its Effect," Pennsylvania Bar Institute, May 2013
  • Speaker, "Restrictive Covenants and Trade Secrets in Pennsylvania," Pennsylvania Bar Institute, January 2009
  • Pennsylvania
  • Ohio
  • West Virginia
  • U.S. Court of Appeals for the 3rd Circuit
  • U.S. Court of Appeals for the 4th Circuit
  • U.S. Court of Appeals for the 9th Circuit
  • U.S. District Court for the Eastern District of Pennsylvania
  • U.S. District Court for the Middle District of Pennsylvania
  • U.S. District Court for the Western District of Pennsylvania
  • U.S. District Court for the Northern District of Ohio
  • U.S. District Court for the Northern District of West Virginia
  • U.S. District Court for the Southern District of West Virginia
  • U.S. Supreme Court

Selected for inclusion in The Best Lawyers in America, Commercial Litigation, 2018-2022

Selected for inclusion in “Legal 500 United States,” Energy Litigation: Oil and Gas, 2021

  • Author, The Ongoing Battle Over Gas Royalty Calculations in Pennsylvania, The Pennsylvania Bar Association Quarterly, Vol. LXXXVII, No 3, July 2016
  • Author, Oil and Gas Property Rights: Disputes Involving Deeds and Leases, The Pennsylvania Bar Association Quarterly, Vol. LXXXVII, No 3, July 2016
  • Author, Preparing for and Defending Accounting Liability Litigation, The Pennsylvania Bar Association Quarterly, Vol. LXXXVII, No 3, 2006
Back to top