Delaware
|
1-3920
|
71-0268502
|
(State
or other
|
(Commission
|
(IRS
Employer
|
jurisdiction
|
File
Number)
|
Identification
Number)
|
of
incorporation)
|
5314
S. Yale Avenue, Suite 1000, Tulsa, Oklahoma
|
74135
|
(Address
of principal executive offices)
|
(Zip
Code)
|
99.1
|
Press
Release, dated July 30, 2007.
|
Date: July 31, 2007 | By: /s/ Beth B. Hood | |
Name: Beth B. Hood | ||
Title: Vice President and Chief Financial Officer |