Callon Petroleum Company announced that Russell Parker is expected to join the Company as Senior Vice President and Chief Operating Officer in late June 2023. Mr. Parker will succeed Dr. Jeff Balmer who plans to retire upon his successor's appointment. Russell Parker is an experienced leader with more than 20 years of operations and strategic leadership that spans public and private energy companies including EP Energy, Phoenix Natural Resources, Chief Oil & Gas, and Hilcorp Energy.

He most recently served as President and Chief Executive Officer of EP Energy and brings extensive experience enhancing operational efficiencies, developing talented teams, and executing strategic transactions. Dr. Balmer is retiring from Callon after a successful career that spans 35 years in the oil and gas industry including nearly five years at Callon. Mr. Parker was previously President and Chief Executive Officer of EP Energy from 2017 to 2022, where he led the company's strategic repositioning following emergence from bankruptcy and oversaw improvements in capital efficiency, well productivity, and safety and environmental performance.

Prior to joining EP Energy, Mr. Parker served as Chief Executive Officer of Apollo-backed Phoenix Natural Resources and President of Chief Oil & Gas. Earlier in his career he spent over a decade with Hilcorp Energy Company where he held positions of increasing responsibility across their engineering and operations functions for its Texas, Louisiana and Utica operations. Mr. Parker holds a Bachelor of Science in Petroleum and Geosystems Engineering from The University of Texas at Austin.