| YHB | | TCO A04 Pool Physical Gas Daily Spot | Natural Gas | IEPA | |
| YHD | | TCO AO4 Pool Physical Inside FERC | Natural Gas | IEPA | |
| XJD | | TCO Physical Basis LD1 | Natural Gas | IEPA | |
| XJA | | TCO Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XIZ | | TCO Physical Fixed Price Spot | Natural Gas | IEPA | |
| XJC | | TCO Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XJB | | TCO Physical Gas Daily Spot | Natural Gas | IEPA | |
| XJE | | TCO Physical Inside FERC | Natural Gas | IEPA | |
| XUC | | TETCO ELA Physical Basis LD1 | Natural Gas | IEPA | |
| XTY | | TETCO ELA Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XTX | | TETCO ELA Physical Fixed Price Spot | Natural Gas | IEPA | |
| XUB | | TETCO ELA Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XUA | | TETCO ELA Physical Gas Daily Spot | Natural Gas | IEPA | |
| XUD | | TETCO ELA Physical Inside FERC | Natural Gas | IEPA | |
| XND | | TETCO M1 30 Physical Basis LD1 | Natural Gas | IEPA | |
| XNA | | TETCO M1 30 Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XMZ | | TETCO M1 30 Physical Fixed Price Spot | Natural Gas | IEPA | |
| XNC | | TETCO M1 30 Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XNB | | TETCO M1 30 Physical Gas Daily Spot | Natural Gas | IEPA | |
| XNE | | TETCO M1 30 Physical Inside FERC | Natural Gas | IEPA | |
| YAI | | TETCO M2 (Receipt) Physical Basis LD1 | Natural Gas | IEPA | |
| YAH | | TETCO M2 (Receipt) Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YAG | | TETCO M2 (Receipt) Physical Fixed Price Spot | Natural Gas | IEPA | |
| YAK | | TETCO M2 (Receipt) Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YAJ | | TETCO M2 (Receipt) Physical Gas Daily Spot | Natural Gas | IEPA | |
| YAL | | TETCO M2 (Receipt) Physical Inside FERC | Natural Gas | IEPA | |
| XZV | | TETCO M3 Physical Basis LD1 | Natural Gas | IEPA | |
| XZS | | TETCO M3 Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XZR | | TETCO M3 Physical Fixed Price Spot | Natural Gas | IEPA | |
| XZU | | TETCO M3 Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XZT | | TETCO M3 Physical Gas Daily Spot | Natural Gas | IEPA | |
| XZW | | TETCO M3 Physical Inside FERC | Natural Gas | IEPA | |
| XTV | | TETCO STX Physical Basis LD1 | Natural Gas | IEPA | |
| XTS | | TETCO STX Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XTR | | TETCO STX Physical Fixed Price Spot | Natural Gas | IEPA | |
| XTU | | TETCO STX Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XTT | | TETCO STX Physical Gas Daily Spot | Natural Gas | IEPA | |
| XTW | | TETCO STX Physical Inside FERC | Natural Gas | IEPA | |
| XVQ | | TETCO WLA Physical Basis LD1 | Natural Gas | IEPA | |
| XVN | | TETCO WLA Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XVM | | TETCO WLA Physical Fixed Price Spot | Natural Gas | IEPA | |
| XVP | | TETCO WLA Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XVO | | TETCO WLA Physical Gas Daily Spot | Natural Gas | IEPA | |
| XVR | | TETCO WLA Physical Inside FERC | Natural Gas | IEPA | |
| Z1P | | TGP - Zone 1, Station 87 Pool Physical Basis LD1 | Natural Gas | IEPA | |
| Z1M | | TGP - Zone 1, Station 87 Pool Physical Fixed Price Monthly | Natural Gas | IEPA | |
| Z1L | | TGP - Zone 1, Station 87 Pool Physical Fixed Price Spot | Natural Gas | IEPA | |
| Z1O | | TGP - Zone 1, Station 87 Pool Physical Gas Daily Monthly | Natural Gas | IEPA | |
| Z1N | | TGP - Zone 1, Station 87 Pool Physical Gas Daily Spot | Natural Gas | IEPA | |
| Z87 | | TGP - Zone 1, Station 87 Pool Physical Inside FERC | Natural Gas | IEPA | |