July 29, 2008
Securities and Exchange Commission
Division of Corporation Finance
100 F Street, N.E.
Washington, D.C. 20549-7010
Attention: Ms. Lily Dang
| Re: | |
| | Form 10-K for Fiscal Year Ended December 31, 2007 |
| | Filed March 14, 2008 |
| | Definitive Proxy Statement on Schedule 14A |
| | Filed March 25, 2008 |
| | Form 10-Q for Fiscal Quarter Ended March 31, 2008 |
| | Filed May 9, 2008 |
| | Response Letters Dated June 10 and June 13, 2008 |
| | File No. I-10924 |
Dear Ms. Dang:
As we discussed in our telephone conversation this morning, we are preparing detailed responses to the comments set forth in the Staff’s letter of July 16, 2008 and will furnish our responses to the Staff not later than August 13, 2008.
Please call Mike Pollard at (432) 688-3029 if you have any questions or need any additional information.
| | Sincerely, |
| | |
| | /s/ Mel G. Riggs |
| | Mel G. Riggs |
| | Senior Vice President and |
| | Chief Financial Officer |
cc: Nabil Nehme (KPMG LLP)
William R. Volk (Vinson & Elkins L.L.P.)
