Since January 2015, Mr. Langford has performed services as a consultant regarding upstream energy investments, strategies and management. Previously, Mr. Langford was employed by Newfield Exploration Co.as Senior Corporate Advisor-Corporate Office from March 2012 until December 2012, General Manager, Mid-Continent Business Unit from April 2011 until February 2012, and Vice President, Corporate Development from February 2009 until March 2011. Mr. Langford was retired from January 2013 until December 2014. In addition to Newfield, Mr. Langford has worked with Cockrell Oil & Gas, British Gas Exploration America, Tenneco Oil Company, Tenneco Inc and Exxon USA in various technical and managerial positions. Mr. Langford holds a B.S. degree in Mechanical Engineering from Auburn University.