Our Team

Richard D. Weber

Richard D. Weber, Chairman & CEO

Rich is a founding partner of PennEnergy Resources, LLC and currently serves as Chairman and Chief Executive Officer of PennEnergy Resources, LLC, a private equity backed independent oil & gas operator focused on the Marcellus Shale in Pennsylvania. Read More
Gregory D. Muse

Gregory D. Muse, President & COO

Greg is a founding partner of PennEnergy Resources and currently serves as President and Chief Operating Officer. 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 300 technical and operations personnel in the development of over 100 Marcellus horizontal wells. Read More
John M. Johnston

John M. Johnston, Executive Vice President & Chief Development Officer

John joined PennEnergy Resources in September 2011 as Executive Vice President and was appointed to the Board of Directors of the company in October 2012. His responsibilities include all exploration & development of the Company’s upstream assets, guiding the Company’s Business Development, and is actively engaged in all corporate strategic, financial and operational decisions. He is also on the Board of Directors of Pine Run Midstream, and was also on the Board of Directors of Cardinal PA Midstream, since sold to Energy Transfer Partners. Read More
Mark C. Lang

Mark C. Lang, Chief Financial Officer

Mark joined PennEnergy Resources in October 2011 as Chief Financial Officer. Prior, he was Chief Accounting Officer and Corporate Controller of Tollgrade Communications Inc. responsible for all domestic and international finance, accounting, SEC reporting and internal controls as well as an integral part of the finance effort for the sale of Tollgrade Communications, Inc. to Golden Gate Capital in May 2011. Read More
S. Casey Bowers

S. Casey Bowers, Senior VP & General Counsel

Casey joined PennEnergy Resources in November 2011 as Vice President Land and General Counsel. Prior to joining PennEnergy, Mr. Bowers served as Vice President of Open Flow Gas Supply Corporation from 2007 through 2011. While at Open Flow, Mr. Bowers was personally responsible for all land, legal and business development matters including guiding Open Flow through a significant and successful Marcellus Shale exploration and production joint venture project. Mr. Bowers also lead the development and implementation of Open Flow’s Health, Safety and Environmental compliance programs. Read More
Douglas G. Mehan

Douglas G. Mehan, Vice President – Health, Environmental & Safety

Doug joined PennEnergy Resources in February 2012 and is a Certified Safety Professional and Pennsylvania licensed Professional Geologist with over 30 years’ experience in geology and in the health, safety, and environmental field. Mr. Mehan is responsible for the development and implementation of HES policies and programs; ensuring compliance with regulatory requirements; communicating & negotiating with regulators; and the development of sustainable environmental management systems including leadership of company ESG (Environmental Social & Governance) priorities. Read More
Brian W. Boyer

Brian W. Boyer, Vice President - E&P Operations

Brian joined PennEnergy Resources in October 2018 as a Production Manager. During his first two years, his knowledge of the business and high-level performance resulted in promotions to Production Operations Director and finally VP of E&P Operations. His current role oversees drilling, completions, civil operations and construction, permitting, water management, production operations, as well as facility construction and maintenance. Read More