Chairman & Chief Executive Officer
Steven C. Dixon has served as the CEO and Chairman of the Board of Directors of Tapstone Energy, LLC since December 2016. Mr. Dixon has more than 37 years of experience in the oil and natural gas industry. Prior to joining Tapstone, Mr. Dixon served in various roles for Chesapeake Energy Corporation, including acting CEO, Executive Vice President – Operations and Geosciences and COO, Executive Vice President – Operations and COO, Senior Vice President – Production and Vice President – Exploration. He holds a Bachelor of Science degree in Geology from the University of Kansas. He served as a member of the Board of Directors for Rice Energy Inc. and is a member of the Society of Petroleum Engineers, the American Association of Petroleum Geologists and the Advisory Board to the University of Kansas.
Senior Vice President – CFO
David M. Edwards is a seasoned oil and gas executive with extensive experience in the areas of mergers and acquisitions, financial reporting systems and both financial strategy and long term budgetary oversight. From April 2014 to October 2014, Mr. Edwards served as Senior Vice President for Tapstone Energy, LLC and was later appointed as Senior Vice President and Chief Financial Officer of Tapstone Energy from October 2014 to June 2018. Mr. Edwards has since returned to Tapstone Energy, LLC in July 2020 and now serves as our Senior Vice President and Chief Financial Officer. Prior to this, from June 2018 to December 2019, Mr. Edwards was the Chief Financial Officer of Roan LLC. Additionally, Mr. Edwards has held various roles in the Finance department of SandRidge Energy, Inc. from October 2010 to February 2014. From 2007 until 2010, Mr. Edward worked in Equity Research at UBS Investment Bank, covering publicly traded companies in the Energy sector. Mr. Edwards holds a Bachelor of Science degree in Applied Mathematics from Brown University.
Vice President – Land & General Counsel
Robert P. Costello has served as General Counsel and Vice President – Land of Tapstone Energy, LLC since November 2013. Mr. Costello has more than 37 years of experience in the oil and natural gas industry. Prior to joining Tapstone, Mr. Costello was Division Counsel – Mid-Continent, responsible for the legal affairs of land and operations at Chesapeake Energy Corporation. Prior to Chesapeake, Mr. Costello was in the private practice of law in Oklahoma City focused primarily on oil and gas litigation and transactions representing various larger operators in Oklahoma. In his years prior to his graduation from the University of Tulsa Law School, Mr. Costello was a landman with Getty Oil Company, and with AMR Energy Corp. He graduated from the University of Oklahoma in 1981 with a Bachelor of Business Administration in Petroleum Land Management. Mr. Costello is currently an Adjunct Professor of Law at Oklahoma City University School of Law. He serves as a member the Board of Directors of OKOGA-OIPA.
Vice President – Human Resources
Sabreena Coleman joined Tapstone Energy, LLC in May 2017 as the Vice President – Human Resources. Ms. Coleman has more than 21 years of Human Resources experience with 12 years of experience in the oil and natural gas industry. Prior to joining Tapstone, Ms. Coleman served as the Director of Benefits for Sandridge Energy, Inc. from May 2014 – November 2016. She served in various roles at Chesapeake Energy Corporation from October 2007 – April 2014, including Senior Director – HR Compliance, and Employee Relations and Compliance Manager. Ms. Coleman holds a Senior Professional in Human Resources Certification and is a member of the Society of Human Resource Management. Ms. Coleman received a Bachelor of Accounting Degree from the University of Oklahoma.
Vice President – Accounting & Controller
Josh M. Kerbo joined Tapstone Energy, LLC in March 2014 and serves as the Vice President – Accounting and Controller. Mr. Kerbo has over 10 years of finance and accounting experience in the oil and natural gas industry. Prior to joining Tapstone, Mr. Kerbo held various management positions from 2009 to 2014, including Accounting Manager at SandRidge Energy, Inc. From 2007 to 2009, he served as Division Controller at Diamondback Energy Services. Mr. Kerbo started his career in 2000 at Dobson Communications Corporation where he oversaw various Financial Reporting and Accounting functions. Mr. Kerbo holds a Bachelor of Science in Accounting from Oklahoma State University.
Vice President – Geoscience
Patrick S. McBride joined Tapstone Energy, LLC in April of 2017 as the Vice President – Geoscience. Before joining Tapstone, Mr. McBride served for seven years in various management and technical roles at Chesapeake Energy Corporation. Mr. McBride started his career in the oil and natural gas industry as a Geologist at Dominion E&P, Occidental Oil & Gas, and Unocal 76. Mr. McBride holds a Bachelor of Science in Geology and a Master of Science in Geology, both from West Virginia University.
Vice President – Operations
Rich McClanahan joined Tapstone Energy, LLC in April 2018 as Vice President – Operations. Prior to joining Tapstone, Mr. McClanahan served as Vice President of Completions at Chesapeake Energy Corporation. Mr. McClanahan held various managerial, engineering and field positions at Devon Energy, Kerr-McGee Corporation, Deminex and Trigg Drilling Company during his career. Mr. McClanahan holds a Bachelor of Science in Petroleum Engineering Technology from Oklahoma State University and is a member of the Society of Petroleum Engineers.