| NYMEX Henry Hub | DAY BEHIND |
Sep '10  |
USD / MMBTU |
| Last | 4.9070 |
| Change |  0.0790 (1.64 %) |
| Oct '10 |
USD / MMBTU |
| Last | 4.9230 |
| Change | 0.0780 (1.61 %) |
| Nov '10 |
USD / MMBTU |
| Last | 5.0660 |
| Change | 0.0560 (1.12 %) |
| Dec '10 |
USD / MMBTU |
| Last | 5.2520 |
| Change | 0.0440 (0.84 %) |
| Jan '11 |
USD / MMBTU |
| Last | 5.3880 |
| Change | 0.0460 (0.86 %) |
| Feb '11 |
USD / MMBTU |
| Last | 5.3560 |
| Change | 0.0510 (0.96 %) |
| Mar '11 |
USD / MMBTU |
| Last | 5.2480 |
| Change | 0.0350 (0.67 %) |
| Apr '11 |
USD / MMBTU |
| Last | 5.0470 |
| Change | 0.0590 (1.18 %) |
| May '11 |
USD / MMBTU |
| Last | 5.0580 |
| Change | 0.0590 (1.18 %) |
| Jun '11 |
USD / MMBTU |
| Last | 5.0900 |
| Change | 0.0780 (1.56 %) |
| Jul '11 |
USD / MMBTU |
| Last | 5.1350 |
| Change | 0.0750 (1.48 %) |
| Aug '11 |
USD / MMBTU |
| Last | 5.1770 |
| Change | 0.0650 (1.27 %) |