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TWO WARREN PLACE, TULSA, OK
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8-K
12/09/19
8-K
12/05/19
8-K
11/27/19
8-K
11/07/19
8-K
09/16/19
8-K
08/08/19
8-K
06/19/19
8-K
05/20/19
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Financial
10-Q
11/07/19
10-Q
08/09/19
10-Q
05/08/19
10-K
02/28/19
10-Q
11/08/18
10-Q
08/09/18
10-Q
05/09/18
10-K
02/26/18
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Prospectus
15-12B
12/23/19
EFFECT
12/16/19
EFFECT
12/16/19
EFFECT
12/16/19
EFFECT
12/16/19
EFFECT
12/16/19
425
11/27/19
425
11/27/19
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Proxies
DEFM14A
10/30/19
DEF 14A
04/12/19
DEF 14A
04/13/18
PRE 14A
03/16/18
DEF 14A
04/13/17
PRE 14A
03/20/17
DEFA14A
06/16/16
DEF 14A
04/13/16
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Ownership
SC 13G/A
02/14/20
SC 13D/A
12/10/19
4
12/09/19
SC 13G/A
12/09/19
4
12/06/19
4
12/06/19
4
12/06/19
4
12/06/19
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SEC Correspondence
S-8 POS
12/11/19
S-8 POS
12/11/19
S-8 POS
12/11/19
S-8 POS
12/11/19
POS AM
12/11/19
POS AM
12/11/19
POS AM
12/11/19
POS AM
12/11/19
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