/s/ Thomas E. Jorden Thomas E. Jorden, Chairman of the Board, Chief Executive Officer and President | /s/ G. Mark Burford G. Mark Burford, Senior Vice President and Chief Financial Officer | |||||||
/s/ Joseph R. Albi Joseph R. Albi, Director | /s/ Paul N. Eckley Paul N. Eckley, Director | |||||||
/s/ Hans Helmerich Hans Helmerich, Director | /s/ Kathleen A. Hogenson Kathleen A. Hogenson, Director | |||||||
/s/ Harold R. Logan, Jr. Harold R. Logan, Jr., Director | /s/ Floyd R. Price Floyd R. Price, Director | |||||||
/s/ Monroe W. Robertson Monroe W. Robertson, Director | /s/ Lisa A. Stewart Lisa A. Stewart, Director | |||||||
/s/ Frances M. Vallejo Frances M. Vallejo, Director | ||||||||