Management Team

Will Hickey
Co-Chief Executive Officer
Mr. Hickey has served as our Co-Chief Executive Officer and a Director since September 2022. Prior to that, he co-founded Colgate Energy with Mr. Walter in 2015 and served as Colgate’s President & Co-Chief Executive Officer and a member of Colgate’s Board of Managers. Prior to the formation of Colgate, Mr. Hickey worked for the energy private equity firm EnCap Investments where he evaluated and monitored investments across the oil and gas space with a focus on the Permian Basin. Prior to that, Mr. Hickey worked for Pioneer Natural Resources where he rotated through numerous engineering positions including Chief of Staff to the Chief Operating Officer. Mr. Hickey received his Bachelor of Science in Petroleum Engineering from the University of Texas at Austin. Mr. Hickey also holds a Masters of Business Administration from Southern Methodist University.
Bio
James Walter
Co-Chief Executive Officer
Mr. Walter has served as our Co-Chief Executive Officer and a Director since September 2022. Prior to that, he co-founded Colgate Energy with Mr. Hickey in 2015 and served as Colgate’s President & Co-Chief Executive Officer and as a member of Colgate’s Board of Managers. Prior to the formation of Colgate, Mr. Walter worked for the energy private equity firm Denham Capital where he evaluated and monitored investments across the oil and gas space with a focus on the Permian Basin. Prior to that, Mr. Walter worked for Boston Consulting Group, primarily focusing on evaluating upstream assets for leading exploration and production companies. Mr. Walter received his Bachelor of Arts in the Plan II Honors Program and a Bachelor of Business Administration in Finance from the University of Texas at Austin.
Bio
Matt Garrison
Executive Vice President and Chief Operating Officer
Mr. Garrison has served as our Chief Operating Officer since September 2022. Prior to that, he served as Centennial Resource Development’s Chief Operating Officer. From October 2016 until he was appointed as Chief Operating Officer in April 2020, he served as Centennial’s Vice President of Geosciences. Mr. Garrison previously served as Division Exploration Manager for EOG Resources, Inc. in its Midland Division from 2014 to 2016, where his primary responsibilities included the Exploration and Development of the company’s Delaware Basin assets, as well as the geologic assessment of EOG’s acquisition of Yates Petroleum in 2016. Prior to that, Mr. Garrison was a senior project geologist responsible for the development of EOG’s Delaware Basin assets. Mr. Garrison also worked in EOG’s Fort Worth Division as a project geologist from 2007 to 2011, focused on both the Barnett gas play in Johnson County and the Barnett combo play in Montague and Cooke County. Mr. Garrison received his Bachelor of Science in Geology from Texas A&M University and his Master of Science in Geology from Oklahoma State University.
Bio
George Glyphis
Executive Vice President and Chief Financial Officer
Mr. Glyphis has served as our Chief Financial Officer since September 2022. Prior to that, he served as Centennial Resource Development’s Chief Financial Officer. From July 2014 until he was appointed as the company’s Chief Financial Officer in October 2016, he served as Vice President and Chief Financial Officer of Centennial Resource Production, LLC (“CRP”). Prior to joining CRP, Mr. Glyphis was a Managing Director in the Oil & Gas Investment Banking practice at J.P. Morgan, where his client base comprised primarily upstream and integrated oil & gas companies. In his 21 years at J.P. Morgan, Mr. Glyphis led the origination and execution of transactions including initial public offerings, equity follow-on offerings, high yield and investment grade bond offerings, corporate mergers and acquisitions, asset acquisition and divestitures, and reserve-based and corporate lending. Mr. Glyphis received his Bachelor of Arts from the University of Virginia.
Bio
John Bell
Executive Vice President & General Counsel
Mr. Bell has served as our General Counsel since September 2022. Prior to that, he served as Senior Vice President, Commercial at Colgate Energy. From August 2017 until he assumed the Senior Vice President role in January 2021, he served as Colgate’s Vice President and General Counsel. Prior to that, Mr. Bell practiced law at Vinson & Elkins LLP in the corporate group focusing on mergers, acquisitions, and private equity transactions in the oil and gas space. Mr. Bell received his Bachelor of Arts from the University of Texas at Austin. He received his J.D. from the University of Texas School of Law, as well as his Master of Business Administration from the University of Texas at Austin.
Bio
Brandon Gaynor
Executive Vice President of Business Development and Strategy
Mr. Gaynor has served as our Executive Vice President of Business Development and Strategy since September 2022. Prior to that, he served as Senior Vice President of Business Development and Strategy at Colgate Energy. Prior to joining Colgate in 2016, Mr. Gaynor worked at Concho Resources in numerous roles including Land Lead for the Southern Delaware Basin and the New Mexico Shelf. Mr. Gaynor also has experience as an independent landman in Midland, Texas, where he focused on title, leasing, and due diligence for oil and gas properties in the Permian Basin. Mr. Gaynor received his Bachelor of Arts from Baylor University and his J.D. from Indiana University - Bloomington.
Bio
Robert Shannon
Executive Vice President of Corporate Services
Mr. Shannon has served as our Executive Vice President of Corporate Services since September 2022. Previously, he served as Vice President and Chief Accounting Officer of Colgate Energy since March 2016. Prior to that, Mr. Shannon served as the Controller of Burnett Petroleum, an independent oil and gas exploration company focused on domestic onshore operations. Mr. Shannon has also previously worked in the Audit Group of KPMG LLP, primarily focused on upstream oil and gas companies. Mr. Shannon received his Bachelor of Business Administration from the Business Honors Program and his Master in Professional Accounting from the University of Texas at Austin.
Bio
Brent Jensen
Senior Vice President and Chief Accounting Officer
Mr. Jensen has served as our Chief Accounting Officer since September 2022. Prior to that, he served as Chief Accounting Officer of Centennial Resource Development. Prior to joining Centennial in 2017, Mr. Jensen worked at Whiting Petroleum Corporation for 12 years and held roles of increasing responsibility including as Vice President, Finance, and Treasurer, as well as Controller and Treasurer. He was the designated principal accounting officer at Whiting from 2006 through 2017. Mr. Jensen was previously with PricewaterhouseCoopers L.L.P. in Houston and Los Angeles, where he held various positions in their oil and gas audit practice since 1994. He has over 24 years of oil and gas accounting experience and is a Certified Public Accountant inactive. Mr. Jensen received his Bachelor of Arts from the University of California, Los Angeles.
Bio
Chad MacDonald
Senior Vice President & Deputy General Counsel
Mr. MacDonald has served as our Deputy General Counsel since September 2022. Prior to that, he served as Vice President and Associate General Counsel of Centennial Resource Development. He previously held other legal roles at Centennial, including Assistant General Counsel and Senior Attorney. Prior to joining Centennial in 2018, he was an Associate at Latham & Watkins LLP, where he focused on advising public and private clients on mergers and acquisitions, private equity transactions, and capital markets transactions. Mr. MacDonald also previously served as an Associate at Paul Hastings LLP. Mr. MacDonald received his Bachelor’s degree from the University of Denver and his J.D. degree from Vanderbilt University Law School.
Bio
Casey McCain
Senior Vice President of Production Operations
Mr. McCain has served as our Senior Vice President of Production Operations since September 2022. Prior to that, he served as Senior Vice President, Operations of Colgate Energy, serving the company in various roles since August 2016. Prior to that, Mr. McCain served as Senior Production Engineer at Matador. He also served in numerous operational and reservoir engineering roles at Encana Corporation and as a Mewbourne Oil Company Drilling Engineer. Mr. McCain received his Bachelor of Science in Petroleum Engineering from Texas Tech University.
Bio
Clayton Smith
Senior Vice President of Development Operations
Mr. Smith has served as our Senior Vice President of Development Operations since September 2022. Prior to that, he served as Vice President of Operations of Centennial Resource Development. He joined Centennial in April 2017 as Senior Completions Engineer and was promoted to Completions Manager in January 2018 and Vice President of Operations in November 2018. Prior to that, he served as a Senior Completion Engineer for EOG Resources, Inc. in the Midland Division, working on EOG’s completion activities in Reeves County, Texas, and Lea and Eddy Counties, New Mexico. Prior to that, Mr. Smith worked in EOG’s Corpus Christi Division in production, drilling, and completion engineering roles, with a focus on South Texas conventional assets. Mr. Smith received his Bachelor of Science in Petroleum Engineering from Texas A&M University. He is a member of the Society of Petroleum Engineers.
Bio
Kathleen Phillips
Senior Vice President, People Strategy & Integration
Ms. Phillips has served as our Senior Vice President of People Strategy & Integration since September 2022. Prior to that, she served as Vice President of Human Resources at Centennial Resource Development. Prior to assuming that role in August 2017, she served as Centennial’s Director of Human Resources. Ms. Phillips worked for QEP Resources, Inc. from 2010 to 2016, where she held several positions including the Director of Training, Development and Recruiting and the Director of Benefits. Earlier in her career, Ms. Phillips worked in the Human Resources department of Suncor Energy from 2006 to 2010 and as a benefits consultant at Marsh & McLennan from 1998 to 2005. Ms. Phillips received her Bachelor of Arts from Texas Christian University and a Master of Public Affairs from the Lyndon B. Johnson School of Public Policy at The University of Texas at Austin.
Bio
William Weidig
Senior Vice President of Finance
Mr. Weidig has served as our Senior Vice President of Finance since September 2022. Prior to that, he served as Vice President of Finance and Treasurer of Centennial Resource Development. Prior to his appointment as a Vice President in February 2019, he was Centennial’s Director of Corporate Finance. He was previously an Associate and Analyst in the Oil & Gas Investment Banking practice at J.P. Morgan. While at J.P. Morgan, he provided transaction advisory and execution services to a variety of public and private clients, primarily within the upstream and midstream space. Mr. Weidig originally joined J.P. Morgan as an Analyst in the Global Conflicts Office of the Investment Bank, where he led the analysis of new business opportunities for potential conflicts of interest and related risks across all industries. Mr. Weidig received his Bachelor of Arts from Brown University.
Bio