| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date | ADCOCK J MICHAEL
Director | Option Exercise
7-Apr-08 | 0
7-Apr-08 | BELITZ STANLEY W
Officer | Disposition (Non Open Market)
31-Aug-08 | 17,744
31-Aug-08 | CHRISTOPHER GARY R
Director | Purchase
1-Dec-08 | 6,000
1-Dec-08 | COOK DON
Director | Sale
30-May-08 | 6,980
30-May-08 | CROMLING JOHN
Officer | Option Exercise
21-May-08 | 21,210
21-May-08 | GEORGE KAISER FAMILY FOUNDATION
Beneficial Owner (10% or more) | Purchase
8-Jul-09 | 7,555,123
8-Jul-09 | GUIDRY BRAD
Officer | Disposition (Non Open Market)
15-May-08 | 12,838
15-May-08 | HAYES DON A
Officer | Disposition (Non Open Market)
17-Feb-09 | 8,530
17-Feb-09 | HILDEBRAND STEVEN B
Director | Purchase
11-Nov-09 | 1,200
11-Nov-09 | KIRCHNER KING P
Director | Option Exercise
21-May-08 | 148,820
21-May-08 | MERRILL DAVID T
Officer | Disposition (Non Open Market)
5-Jan-09 | 15,933
5-Jan-09 | MORGAN WILLIAM B
Director | Option Exercise
2-Mar-09 | 7,500
2-Mar-09 | NIKKEL JOHN G
Director | Sale
26-Mar-08 | 132,989
26-Mar-08 | PARKS ROBERT
Officer | Sale
28-May-08 | 11,394
28-May-08 | PINKSTON LARRY D
Officer | Sale
17-Sep-09 | 58,147
17-Sep-09 | SCHELL MARK E
Officer | Disposition (Non Open Market)
5-Jan-09 | 29,608
5-Jan-09 |
|
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