Mark Ellis

Mr. Ellis was elected to the Board in 2017 and was appointed Non-Executive Chairman of the Board in February 2020. He served as a director and President and Chief Executive Officer of Linn Energy, Inc., the reorganized successor to Linn Energy, LLC (“LINN”), which filed for bankruptcy in the federal bankruptcy court, Southern District of Texas, in May 2016. From January 2010 until his retirement from LINN in August 2018, Mr. Ellis was the President and Chief Executive Officer and a director of LINN. From 2012 until August 2018, Mr. Ellis also served as Chairman of LINN’s board of directors. Prior to joining LINN in 2006, Mr. Ellis served in varying roles of increasing responsibility for Burlington Resources and ConocoPhillips. Mr. Ellis holds a B.S. in Petroleum Engineering from Texas A&M University.

Bart Brookman

Mr. Brookman, the Company’s President and Chief Executive Officer (“CEO”), was appointed to the Board in January 2015, simultaneously with his appointment as the Company’s CEO. Mr. Brookman joined the Company in July 2005 as Senior Vice President—Exploration and Production; he was appointed to the position of Executive Vice President and Chief Operating Officer in June 2013 and then served as President and Chief Operating Officer from June 2014 through December 2014. Prior to joining PDC, Mr. Brookman worked for Patina Oil and Gas and its predecessor Snyder Oil from 1988 until 2005 in a series of operational and technical positions of increasing responsibility, ending his service at Patina as Vice President of Operations. Mr. Brookman holds a B.S. in Petroleum Engineering from the Colorado School of Mines and a M.S. in Finance from the University of Colorado.

Pamela Butcher

Pamela R. Butcher serves as an independent director on the Boards of Pilot Chemical Corp, Trecora Resources, and is a member of the US Bank Regional Advisory Board. She is chair of the Nominating Governance committee for Trecora and serves on the Compensation committees at both Trecora and Pilot. Additionally, she serves in a Special Advisor role for the Chairman of Pilot.  For the previous eleven years she was the CEO and President of the Pilot Chemical Corp delivering significant revenue and profit growth along with five accretive acquisitions. Prior to joining Pilot, she worked 29 years for The Dow Chemical Company (now Dow Inc.) where she held a variety of executive leadership positions including Business Vice President of Specialty Chemicals, Vice President of Corporate Marketing & Sales and Vice President and General Manager of Adhesives and Sealants. She was a distinguished recipient of Dow’s Genesis Award for people excellence, which is Dow’s highest recognition for people leadership. Previously, she also served on the board of trustees for the Chemical Educational Foundation, on the Boards of the American Cleaning Institute, the Ohio Manufacturers’ Association and numerous community organizations. Pam holds a bachelor’s degree in Agronomy and a Master of Science Degree from Purdue University. In addition, she is a graduate of the Northwestern University Marketing Executive Program and has participated in the Prince of Wales Sustainability Conference and the Asian Master Class on Asian Business. She is a member of the National Association of Corporate Directors and has completed the Director Professionalism® Class.

Paul Korus

Mr. Korus joined the Board in January 2020 in connection with the closing of the merger with SRC Energy Inc. (“SRC”). Mr. Korus was previously the Senior Vice President and Chief Financial Officer of Cimarex Energy Co. from September 2002 until his retirement in 2015, and held the same positions with its predecessor, Key Production Company, from 1999 through 2002. Mr. Korus has been a director of Whiting Petroleum since September 2020 and a director of Antero Resources Corporation since December of 2018. He was a member of the board of directors of SRC from June 2016 until January 2020. Mr. Korus was also a director of Antero Midstream Partners LP from January 2019 until its merger with Antero Midstream GP LP in March 2019. His previous experience also includes approximately five years as an oil and gas research analyst at an investment banking firm. He began his oil and gas career in 1982 with Apache Corporation where he held positions in corporate planning, information technology and investor relations. From 2011 to 2019, Mr. Korus served on the UND College of Business and Public Administration Alumni Advisory Council and was its chairperson from 2017 to 2019. Mr. Korus is a former CPA. Mr. Korus holds a B.S. in Economics and M.S. in Accounting from the University of North Dakota.

David Parke

Mr. Parke, who joined the Board in 2003, has over 30 years of investment banking experience. He has served as a Managing Director of Gordian Investments LLC since October 2014. He has also been a member of the Life Science Advisory Group of IP Group plc since July 2018. From June 2011 until October 2014, he was a Managing Director in the investment banking group of Burrill Securities LLC, an investment banking firm. From 2006 until June 2011, he was a Managing Director of Boenning & Scattergood, Inc., a regional investment bank. Prior to joining Boenning & Scattergood, from October 2003 to November 2006, he was a Director with the investment banking firm Mufson Howe Hunter & Company LLC. From 1992 through 2003, Mr. Parke was Director of Corporate Finance of Investec, Inc. and its predecessor, Pennsylvania Merchant Group Ltd., both investment banking companies. Prior to joining Pennsylvania Merchant Group, Mr. Parke served in the corporate finance departments of Wheat First Butcher & Singer, now part of Wells Fargo, and Legg Mason, Inc., now part of Stifel Nicolaus. Mr. Parke holds a B.S. in Finance from Lehigh University and an M.B.A. from the Wharton School at the University of Pennsylvania.

Lynn Peterson

Mr. Peterson joined the Board in January 2020 in connection with the closing of the merger with SRC. Mr. Peterson was appointed President, Chief Executive Officer and director of Whiting Petroleum Corporation (“Whiting”) in September 2020. He was the Chairman of the Board, Chief Executive Officer and President of SRC from May 2015 until January 2020. He was a co-founder of Kodiak Oil & Gas Corporation (“Kodiak”), and served Kodiak as a director (2001-2014) and as its President, Chief Executive Officer (2002-2014) and as its President, Chief Executive Officer (2002-2014) and Chairman of the Board (2011-2014) until its acquisition by Whiting Petroleum Corporation in December 2014. Mr. Peterson has been a member of the board of directors of Denbury Resources Inc. since May 2017. Mr. Peterson has over 35 years of industry experience. Mr. Peterson holds a B.S. in Accounting from Northern Colorado University.

Carlos Sabater

Mr. Sabater joined the board in May 2021.  Mr. Sabater is an accomplished global business executive and certified public accountant with nearly 40 years of leadership, corporate governance, accounting and financial reporting experience.  Mr. Sabater serves on the Board of KBR, Inc. (NYSE: KBR), a U.S. based company operating in the fields of science, technology and engineering.  During his extensive career at Deloitte & Touche LLP (“Deloitte”), he served in various senior leadership and operational roles, including CEO for both the U.S. and global audit practices and as the managing partner for all of Deloitte’s businesses across North and South America. Mr. Sabater led various risk, governance, audit, finance, compensation and global committees during his service as an elected board member for the Deloitte firms in the U.S., Mexico, Central and Latin America, the Caribbean and Bermuda. Mr. Sabater was born in Cuba immigrating to the U.S. as a child, is fluent in Spanish, and holds a Bachelor of Business Administration in Accounting and Finance from Florida International University.

Diana Sands

Ms. Sands was appointed to the Board in February 2021. She retired in 2020 from the Boeing Company (“Boeing”) as an Executive Officer and Senior Vice President, Office of Internal Governance and Administration, a role she held since 2016. Reporting to the CEO and the audit committee, Ms. Sands oversaw a diverse team including corporate audit, ethics & investigations, compliance risk management, security, and internal services. During her 20-year career at Boeing, Ms. Sands served in several financial and governance roles with increasing responsibility, including Director of Corporate Treasury, Vice President Investor Relations, Financial Planning & Analysis, and Corporate Controller. Prior to Boeing, she served in finance roles at General Motors Corporation and Ameritech Communications, Inc., among others. Ms. Sands currently serves on the boards of SP+ (Nasdaq: SP) and National Philanthropic Trust, and is Board Chair for Start Early, a non-profit champion for quality early learning. Ms. Sands holds a Bachelor of Business Administration from University of Michigan and an M.B.A. from the Kellogg School of Management at Northwestern University.


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Four Decades of Profitable Growth


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