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, 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 currently sits on the boards of both Coloradans for Responsible Energy Development (CRED) and Protect Colorado. He 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

Ms. Butcher joined the Board in February 2022. She currently serves as a director of Pilot Chemical Company since 2016. Ms. Butcher previously served as director of Trecora Resources from November 2016 until its acquisition by Balmoral Funds, LLC in June 2022, and as a director of Gruden Topco Holdings, LP/Quality Distribution, Inc.. Since 2010, Ms. Butcher served as President and Chief Operating Officer of Pilot and later became CEO until she retired in January 2021. 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 US Bank Regional Advisory Board, 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 Company’s merger with SRC Energy Inc.. He currently serves as a Director of Chord Energy (NASDAQ: CHRD) since July 2022.  Prior to that, Mr. Korus served as a director of Whiting Petroleum Corporation until its merger with Oasis Petroleum, Inc. in July 2022, forming Chord. He also formerly served as a director of Crestwood Equity GP LLC and Crestwood Equity Partners LP from July to September 2022, a director of SRC from June 2016 until January 2020, a director of Antero Midstream Partners LP from January until March 2019, and a director of Antero Resources Corporation from December 2018 to June 2021.  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.  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 holds a Bachelor of Science degree in Economics and a Master of Science degree in Accounting from the University of North Dakota. He is also a former CPA.

Lynn Peterson

Mr. Peterson joined the Board in January 2020 in connection with the closing of the Company’s merger with SRC Energy Inc. He currently serves as Executive Chairman of Chord Energy (NASDAQ: CHRD) since July 2022 and as a director of Denbury Resources Inc. (NYSE: DEN) since May 2017.  Mr. Peterson previously served as Whiting’s President, Chief Executive Officer and as a director from September 2020 until its merger with Oasis Petroleum, Inc. in July 2022, forming Chord.  Mr. Peterson 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  and served Kodiak as a director (2001-2014) and as its President, Chief Executive Officer (2002-2014) and Chairman of the Board (2011-2014) until its acquisition by Whiting in December 2014. Mr. Peterson has over 35 years of industry experience. Mr. Peterson holds a Bachelors of Science in Accounting from University of Northern Colorado.

Carlos Sabater

Mr. Sabater joined the Board in May 2021.   He currently serves as a Director of each of KBR, Inc. (NYSE: KBR) and Pool Corporation (NASDAQ: POOL).  Mr. Sabater retired from Deloitte Touche Tohmatsu Limited in 2020 as a senior global partner. Over the course of his nearly 40-year career with Deloitte, Mr. Sabater 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, is a licensed certified public accountant and holds a Bachelor of Business Administration in Accounting and Finance from Florida International University.

Diana Sands

Ms. Sands joined the Board in February 2021. She currently serves on the Board of SP+ (Nasdaq: SP). Ms. Sands retired in 2020 from the Boeing Company 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 serves on the non-profit boards of National Philanthropic Trust and Start Early. She 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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