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Date	Form	Description	View
1/5/2010	4	Statement of Changes in Beneficial Ownership for SCHELL MARK E
1/5/2010	4	Statement of Changes in Beneficial Ownership for Cromling John
12/21/2009	4	Statement of Changes in Beneficial Ownership for PINKSTON LARRY D
12/1/2009	4	Statement of Changes in Beneficial Ownership for GEORGE KAISER FAMILY FOUNDATION
11/12/2009	4	Statement of Changes in Beneficial Ownership for HILDEBRAND STEVEN B
11/3/2009	10-Q	Quarterly Report
11/3/2009	8-K	Current Report
9/18/2009	4	Statement of Changes in Beneficial Ownership for PINKSTON LARRY D
8/4/2009	10-Q	Quarterly Report
8/4/2009	8-K	Current Report
7/8/2009	4	Statement of Changes in Beneficial Ownership for GEORGE KAISER FAMILY FOUNDATION
6/26/2009	11-K	Annual Report of Employee Stock Plans
6/4/2009	8-K	Current Report
6/2/2009	4/A	Amended Statement of Changes in Beneficial Ownership for WILLIAMS JOHN H
6/2/2009	4/A	Amended Statement of Changes in Beneficial Ownership for Sullivan Robert J Jr
6/2/2009	4/A	Amended Statement of Changes in Beneficial Ownership for NIKKEL JOHN G
6/2/2009	4/A	Amended Statement of Changes in Beneficial Ownership for MORGAN WILLIAM B
6/2/2009	4/A	Amended Statement of Changes in Beneficial Ownership for KIRCHNER KING P
6/2/2009	4/A	Amended Statement of Changes in Beneficial Ownership for HILDEBRAND STEVEN B
6/2/2009	4/A	Amended Statement of Changes in Beneficial Ownership for CHRISTOPHER GARY R

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