Charles R. Crisp has served as a director of the Company since its formation in October 2005. He was President and Chief Executive Officer of Coral Energy, LLC, a subsidiary of Shell, from 1999 until his retirement in November 2000, and President and Chief Operating Officer of Coral from January 1998 through February 1999; prior to this he served as President of the power generation group of Houston Industries and, between 1988 and 1996, as President, Chief Operating Officer and a director of Tejas. Mr. Crisp is a director of EOG Resources Inc. (NYSE: EOG) and was previously a director of Intercontinental Exchange Inc. (NYSE: ICE) from 2002 until May 2022 and Southern Company Gas from 2003 until April 2023.