| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date | CHIEFTAIN CAPITAL MANAGEMENT INC Beneficial Owner (10% or more) | Sale 17-Nov-09 | 1,536,975 17-Nov-09 | CRAIN JAMES C Director | Acquisition (Non Open Market) 13-Aug-09 | 27,705 13-Aug-09 | DAVIS BARRY E Officer | Purchase 6-Mar-09 | 1,587,745 6-Mar-09 | DAVIS JOE A Officer | Disposition (Non Open Market) 1-Jul-09 | 37,056 1-Jul-09 | DAVIS WILLIAM W Officer | Disposition (Non Open Market) 5-Feb-09 | 168,819 5-Feb-09 | ECHOLS LELDON E Director | Acquisition (Non Open Market) 13-Aug-09 | 10,603 13-Aug-09 | LAFIELD JACK M Officer | Disposition (Non Open Market) 16-Jan-09 | 193,621 16-Jan-09 | LUBAR SHELDON B Director | Acquisition (Non Open Market) 13-Aug-09 | 546,074 13-Aug-09 | MARTIN CECIL E JR Director | Acquisition (Non Open Market) 13-Aug-09 | 10,603 13-Aug-09 | MCADEN SUSAN J Officer | Sale 17-Nov-09 | 14,270 17-Nov-09 | MURCHISON ROBERT F Director | Acquisition (Non Open Market) 13-Aug-09 | 228,052 13-Aug-09 | PURGASON ROBERT S Officer | Disposition (Non Open Market) 16-Nov-09 | 50,268 16-Nov-09 | WALES JAMES R Officer | Automatic Sale 27-Dec-07 | 663,569 27-Dec-07 |
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