| XVC | | Transco Station 85 (Zone 4) Physical Gas Daily Spot | Natural Gas | IEPA | |
| YFK | | Transco Z5 South Physical Basis LD1 | Natural Gas | IEPA | |
| YFG | | Transco Z5 South Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YFF | | Transco Z5 South Physical Fixed Price Spot | Natural Gas | IEPA | |
| YFI | | Transco Z5 South Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YFH | | Transco Z5 South Physical Gas Daily Spot | Natural Gas | IEPA | |
| YFJ | | Transco Z5 South Physical Inside FERC | Natural Gas | IEPA | |
| XWO | | Transco Z6 (NY) Physical Basis LD1 | Natural Gas | IEPA | |
| XWL | | Transco Z6 (NY) Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XWK | | Transco Z6 (NY) Physical Fixed Price Spot | Natural Gas | IEPA | |
| XWN | | Transco Z6 (NY) Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XWM | | Transco Z6 (NY) Physical Gas Daily Spot | Natural Gas | IEPA | |
| XWP | | Transco Z6 (NY) Physical Inside FERC | Natural Gas | IEPA | |
| YFE | | Transco Z6 Sta-210 Physical Basis LD1 | Natural Gas | IEPA | |
| YFA | | Transco Z6 Sta-210 Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YEZ | | Transco Z6 Sta-210 Physical Fixed Price Spot | Natural Gas | IEPA | |
| YFC | | Transco Z6 Sta-210 Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YFB | | Transco Z6 Sta-210 Physical Gas Daily Spot | Natural Gas | IEPA | |
| YFD | | Transco Z6 Sta-210 Physical Inside FERC | Natural Gas | IEPA | |
| X7J | | Transco-165 Physical Basis LD1 | Natural Gas | IEPA | |
| X7G | | Transco-165 Physical Fixed Price Monthly | Natural Gas | IEPA | |
| X7H | | Transco-165 Physical Fixed Price Spot | Natural Gas | IEPA | |
| X7K | | Transco-165 Physical Gas Daily Monthly | Natural Gas | IEPA | |
| X7L | | Transco-165 Physical Gas Daily Spot | Natural Gas | IEPA | |
| X7M | | Transco-165 Physical Inside FERC | Natural Gas | IEPA | |
| XMR | | Trunkline Z1A Physical Basis LD1 | Natural Gas | IEPA | |
| XMO | | Trunkline Z1A Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XMN | | Trunkline Z1A Physical Fixed Price Spot | Natural Gas | IEPA | |
| XMQ | | Trunkline Z1A Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XMP | | Trunkline Z1A Physical Gas Daily Spot | Natural Gas | IEPA | |
| XMS | | Trunkline Z1A Physical Inside FERC | Natural Gas | IEPA | |
| ENB | | UK OCM Gas Spot | Natural Gas | NDCM | |
| XT8 | | Waha Physical Basis LD1 | Natural Gas | IEPA | |
| XT7 | | Waha Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XT6 | | Waha Physical Fixed Price Spot | Natural Gas | IEPA | |
| XU0 | | Waha Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XT9 | | Waha Physical Gas Daily Spot | Natural Gas | IEPA | |
| XU1 | | Waha Physical Inside FERC | Natural Gas | IEPA | |
| Z48 | | White River Physical Basis LD1 | Natural Gas | IEPA | |
| Z44 | | White River Physical Fixed Price Monthly | Natural Gas | IEPA | |
| Z43 | | White River Physical Fixed Price Spot | Natural Gas | IEPA | |
| Z46 | | White River Physical Gas Daily Monthly | Natural Gas | IEPA | |
| Z45 | | White River Physical Gas Daily Spot | Natural Gas | IEPA | |
| Z47 | | White River Physical Inside FERC | Natural Gas | IEPA | |