Mr. Muse is a founding partner of PennEnergy Resources, LLC and currently serves as Chief Executive Officer. Through the end of 2024, served as President and Chief Operating Officer. Along with his partner Mr. Weber, Mr. Muse led the start-up of PennEnergy growing the company into one largest privately-owned natural gas producers in the nation. PennEnergy has built a consolidated acreage position of nearly 200,000 acres in the core of the prolific Marcellus Shale in southwest Pennsylvania. The company has consistently developed some of the most productive wells in play and today operates approximately 450 wells. Despite the headwinds of volatile and often depressed commodity prices, PennEnergy has consistently generated significant free cash flow by maintaining one the lowest cost structures in the industry. In 2018, PennEnergy successfully acquired and integrated the assets of Rex Energy Corporation; formerly a public company that had filed for bankruptcy. Since its inception, PennEnergy has religiously adhered to its Core Values and followed a formula of prudently allocating capital to generate high risk-adjusted returns to its unitholders.

Prior to co-founding PennEnergy, Mr. Muse was the Senior Vice President for Marcellus Operations at Atlas Energy Resources, LLC from 2010 to 2011. During this time, he built, led, and managed a team of over three hundred technical and operations personnel in the development of over one hundred Marcellus horizontal wells. Before joining Atlas in 2010, Mr. Muse had a 28-year career with Marathon Oil Company beginning in 1982 spanning numerous technical, management and leadership roles across the U.S. including Offshore Gulf of Mexico and Alaska, Appalachia Marcellus Shale, Wyoming, West Texas, New Mexico, East & South Texas, Louisiana, Oklahoma, Arkansas, and Mississippi. In these positions, Mr. Muse managed the technical, operational, and business management aspects of these assets including engineering, geology, land, regulatory, drilling, completion, production, safety, and environmental activities. Mr. Muse also held corporate positions at Marathon including Worldwide Unconventional Shale Development Manager, Global Procurement Manager and Strategic Sourcing Manager.

Mr. Muse is a past Executive Committee Member of the Marcellus Shale Coalition and Board Member of the Independent Oil and Gas Association of Pennsylvania and was a past member of several other Oil & Gas Associations during his career including Texas Oil & Gas Association, New Mexico Oil & Gas Association, East Texas Engineering Association, Society of Petroleum Engineers, and the American Institute of Chemical Engineers. Mr. Muse also served on the Board of the United Way in Hobbs, New Mexico. Mr. Muse graduated from Rose-Hulman Institute of Technology, in Terre Haute, Indiana in 1982 with a B.S. in Chemical Engineering and participated in Executive Management training and courses at Kelly School of Business at Indiana University Bloomington. 

Greg Muse

Chief Executive Officer

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