Ms. Cepak has served as a director of Patterson-UTI since August 2014. Ms. Cepak has served as a director of Ranger Oil Corporation, an upstream oil and gas company, since September 2019, as a director of California Resources Corporation, an upstream oil and gas company, since October 2020 (and as chair since April 2021) and as a director of EnLink Midstream, LLC, a midstream company, since December 2021. Ms. Cepak served as the Chief Financial Officer of Energy XXI Gulf Coast, Inc., an upstream oil and gas company, from August 2017 to October 2018. Ms. Cepak served as the Chief Financial Officer of KLR Energy (and, subsequent to its business combination, Rosehill Resources Inc., an upstream oil and gas company) from January 2015 to June 2017. Ms. Cepak served as a director of Yates Petroleum Corporation, a privately owned, independent oil and gas exploration and production company, from October 2015 to October 2016. Ms. Cepak served four years as the Chief Financial Officer of EPL Oil & Gas, Inc., and was further appointed Executive Vice President in January 2014, and she served in those roles until June 2014, when EPL was sold. Ms. Cepak began her career with EPL as a Senior Asset Management Engineer, a position she held until she was appointed Director of Corporate Reserves in September 2001. Ms. Cepak was named EPL’s Director of Investor Relations in April 2006 and Vice President, Treasurer and Investor Relations in July 2008. In July 2009, Ms. Cepak was designated as EPL’s Principal Financial Officer and, in September 2009, she was appointed Senior Vice President. Ms. Cepak has more than 25 years of energy industry experience and prior to joining EPL, she was a Senior Reservoir Engineer with Exxon Production Company and ExxonMobil Company with operational roles including reservoir engineering and subsurface completion engineering for numerous offshore Gulf of Mexico properties. Ms. Cepak holds a B.S. in Engineering from the University of Illinois and a Masters of Business Administration in Management with a concentration in Finance from Tulane University.