| XSF | | Eastern Gas-North Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XOR | | Eastern Gas-North Physical Gas Daily Spot | Natural Gas | IEPA | |
| XSG | | Eastern Gas-North Physical Inside FERC | Natural Gas | IEPA | |
| XJP | | Eastern Gas-South Physical Basis LD1 | Natural Gas | IEPA | |
| XJM | | Eastern Gas-South Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XJL | | Eastern Gas-South Physical Fixed Price Spot | Natural Gas | IEPA | |
| XJO | | Eastern Gas-South Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XJN | | Eastern Gas-South Physical Gas Daily Spot | Natural Gas | IEPA | |
| XJQ | | Eastern Gas-South Physical Inside FERC | Natural Gas | IEPA | |
| XXN | | EGT Flex Physical Basis LD1 | Natural Gas | IEPA | |
| XXK | | EGT Flex Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XXJ | | EGT Flex Physical Fixed Price Spot | Natural Gas | IEPA | |
| XXM | | EGT Flex Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XXL | | EGT Flex Physical Gas Daily Spot | Natural Gas | IEPA | |
| XXO | | EGT Flex Physical Inside FERC | Natural Gas | IEPA | |
| XSX | | EP Keystone Physical Basis LD1 | Natural Gas | IEPA | |
| XSU | | EP Keystone Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XST | | EP Keystone Physical Fixed Price Spot | Natural Gas | IEPA | |
| XSW | | EP Keystone Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XSV | | EP Keystone Physical Gas Daily Spot | Natural Gas | IEPA | |
| XSY | | EP Keystone Physical Inside FERC | Natural Gas | IEPA | |
| XVK | | EP SJ Blanco Pool Physical Basis LD1 | Natural Gas | IEPA | |
| XVH | | EP SJ Blanco Pool Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XVG | | EP SJ Blanco Pool Physical Fixed Price Spot | Natural Gas | IEPA | |
| XVJ | | EP SJ Blanco Pool Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XVI | | EP SJ Blanco Pool Physical Gas Daily Spot | Natural Gas | IEPA | |
| XVL | | EP SJ Blanco Pool Physical Inside FERC | Natural Gas | IEPA | |
| YIA | | Florida Gas Zone 3 Physical Basis LD1 | Natural Gas | IEPA | |
| YHW | | Florida Gas Zone 3 Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YHV | | Florida Gas Zone 3 Physical Fixed Price Spot | Natural Gas | IEPA | |
| YHY | | Florida Gas Zone 3 Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YHX | | Florida Gas Zone 3 Physical Gas Daily Spot | Natural Gas | IEPA | |
| YHZ | | Florida Gas Zone 3 Physical Inside FERC | Natural Gas | IEPA | |
| YEG | | GTN Kingsgate Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YEF | | GTN Kingsgate Physical Fixed Price Spot | Natural Gas | IEPA | |
| YEJ | | GTN Kingsgate Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YEI | | GTN Kingsgate Physical Gas Daily Spot | Natural Gas | IEPA | |
| XWU | | GTN Stanfield Physical Basis LD1 | Natural Gas | IEPA | |
| XWR | | GTN Stanfield Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XWQ | | GTN Stanfield Physical Fixed Price Spot | Natural Gas | IEPA | |
| XWT | | GTN Stanfield Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XWS | | GTN Stanfield Physical Gas Daily Spot | Natural Gas | IEPA | |
| XGA | | Henry Physical Basis LD1 | Natural Gas | IEPA | |
| XGB | | Henry Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XGF | | Henry Physical Fixed Price Spot | Natural Gas | IEPA | |
| XGC | | Henry Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XGG | | Henry Physical Gas Daily Spot | Natural Gas | IEPA | |
| XGD | | Henry Physical Inside FERC | Natural Gas | IEPA | |
| XZD | | HSC HPL Pool Physical Basis LD1 | Natural Gas | IEPA | |
| XZA | | HSC HPL Pool Physical Fixed Price Monthly | Natural Gas | IEPA | |