| NYMEX Appalachian Coal | DAY BEHIND |
Sep '10  |
USD / TON |
| Last | 60.75 |
| Oct '10 |
USD / TON |
| Last | 67.25 |
| Nov '10 |
USD / TON |
| Last | 62.50 |
| Dec '10 |
USD / TON |
| Last | 62.50 |
| Jan '11 |
USD / TON |
| Last | 64.50 |
| Feb '11 |
USD / TON |
| Last | 64.50 |
| Mar '11 |
USD / TON |
| Last | 64.50 |
| Apr '11 |
USD / TON |
| Last | 67.00 |
| May '11 |
USD / TON |
| Last | 67.00 |
| Jun '11 |
USD / TON |
| Last | 0.00 |
| Jul '11 |
USD / TON |
| Last | 0.00 |
| Aug '11 |
USD / TON |
| Last | 0.00 |