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Jim W. Mogg, age 68, was elected Chairman of the Board on October 30, 2018. He has served as a director since August 2013. Mr. Mogg has also served on the board of directors of ONEOK, Inc., a publicly traded diversified energy company since July 2007. Mr. Mogg also served as a director of ONEOK Partners, L.P., a publicly traded master limited partnership that operated natural gas and natural gas liquids gathering, processing, pipelines, and fractionation assets from August 2009 until its merger with a subsidiary of ONEOK, Inc. in June of 2017. Mr. Mogg served as Chairman of the Board of DCP Midstream GP, LLC, the general partner of DCP Midstream Partners, L.P., ("DCP Midstream") from August 2005 to April 2007. From January 2004 to September 2006, Mr. Mogg served as Group Vice President, Chief Development Officer and advisor to the Chairman of Duke Energy Corporation. Additionally, Duke Energy affiliates, Crescent Resources and TEPPCO Partners, LP ("TEPPCO") reported to Mr. Mogg. Mr. Mogg served as President and Chief Executive Officer of DCP Midstream, LLC from December 1994 to March 2000, and as Chairman, President and Chief Executive Officer from April 2000 through December 2003. DCP Midstream was the general partner of TEPPCO and, as a result, Mr. Mogg was Vice Chairman of TEPPCO from April 2000 to May 2002 and Chairman from May 2002 to February 2005. Mr. Mogg also serves on the board of directors of Bill Barrett Corporation, an exploration and production company, where he is currently the non-executive Chairman. Finally, Mr. Mogg serves on the Board of the Southwestern Oklahoma State University Foundation.