Donald R Sinclair

Donald R. Sinclair has served as President and as a director of the general partner of Western Gas Partners, LP since October 2009. In January 2010, he also became the Chief Executive Officer of the general partner of Western Gas Partners, LP. Mr. Sinclair has served as a director and as President and Chief Executive Officer of the general partner of Western Gas Equity Partners, LP since September 2012. Prior to joining Western Gas, Mr. Sinclair was a founding partner and served as President of Ceritas Energy, LLC, a midstream energy company headquartered in Houston with operations in Texas, Wyoming and Utah from February 2003 to September 2009. Earlier in his career, Mr. Sinclair was President of Duke Energy Trading and Marketing LLC, one of the nation's largest marketers of natural gas and wholesale electric power, and served as Chairman of the Energy Risk Committee for Duke Energy Corporation. Prior to joining Duke, Mr. Sinclair served as Senior Vice President of Tenneco Energy and as President of Tenneco Energy Resources. Previously, as one of the original principals and officers at Dynegy, Inc. (formerly NGC Corporation), he served for eight years in various officer positions, including Senior Vice President and Chief Risk Officer, where he was in charge of all risk management activities and commercial operations.