Former chief financial officer of Marathon Oil Corporation Independent director Age 71 Director since 2015 Career highlights Ms. Clark was chief financial officer and executive vice president of Marathon Oil Corporation from 2007 to 2013 and senior vice president and chief financial officer from 2004 to 2007. Prior to Marathon, she served as chief financial officer of Nuevo Energy Company and Santa Fe Snyder Corporation. Ms. Clark has served as a director of Goldman Sachs BDC, Dell Inc. and Exterran Holdings, Inc. She also serves as a director of environmental nonprofit Resources for the Future. Key skills and experience Keen appreciation for audit and financial control matters Oversight of large multinational companies, including one in the technology industry Other current public company directorships EOG Resources, Inc. Other public company directorships in the last five years None