Committee Composition Audit Committee Compensation Committee Finance Committee HSE & Engineering Committee Nominating & Governance Committee Kevin S. Corbett Audit Committee Nominating & Governance Committee Julie H. Edwards Compensation Committee Finance Committee Nominating & Governance Committee Gordon T. Hall Compensation Committee Finance Committee Nominating & Governance Committee Roger W. Jenkins Audit Committee HSE & Engineering Committee Scott D. Josey Audit Committee HSE & Engineering Committee Jon A. Marshall Compensation Committee Finance Committee HSE & Engineering Committee = Chairperson = Member = Financial Expert