| Individual/Entity | Most Recent Trans. | Shares Owned as of Trans. Date |
|---|
ARMSTRONG WILLIAM L
Director | Option Exercise
2012-01-24 | 17,358
2012-01-24 | BELL JOHN R.
Officer | Ownership Statement
2012-03-06 | 18,800
2012-03-06 | FOUTCH RANDY A
Director | Option Exercise
2013-03-20 | 4,122
2013-03-20 | HELM GORDON K
Officer | Acquisition (Non Open Market)
2012-12-03 | 27,668
2012-12-03 | HELMERICH HANS
Officer | Disposition (Non Open Market)
2013-03-26 | 2,647,250
2013-03-26 | HELMERICH W H III
Director | Disposition (Non Open Market)
2011-12-08 | 1,935,915
2011-12-08 | LINDSAY JOHN W
Officer | Option Exercise
2013-05-16 | 87,401
2013-05-16 | MACKEY STEVEN R
Officer | Sale
2012-12-12 | 29,919
2012-12-12 | PETRIE THOMAS A.
Director | Ownership Statement
2012-06-05 | 5,000
2012-06-05 | ROBILLARD DONALD F JR
Director | Purchase
2013-03-18 | 2,000
2013-03-18 | ROONEY L F III
Director | Disposition (Non Open Market)
2012-12-27 | 0
2012-12-27 | RUST EDWARD B JR
Director | Option Exercise
2012-05-03 | 14,158
2012-05-03 | TARDIO JUAN PABLO
Officer | Disposition (Non Open Market)
2012-12-13 | 19,011
2012-12-13 | ZEGLIS JOHN D
Director | Option Exercise
2012-12-16 | 25,927
2012-12-16 |
|
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