| Calyon Securities (USA) Inc. |
Mark S. Urness |
212-408-5683 |
| Jefferies & Company, Inc. |
Stephen D. Gengaro |
973-912-2694 |
| Simmons & Company International |
William Herbert |
713-223-7898 |
| Stifel Nicolaus & Company, Inc. |
R. Thaddeus Vayda |
443-224-1318 |
| Tudor, Pickering, Holt & Co. |
Tillery/Nieuwoudt |
713-333-2964 |