| XXT | | Opal Physical Basis LD1 | Natural Gas | IEPA | |
| XXQ | | Opal Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XXP | | Opal Physical Fixed Price Spot | Natural Gas | IEPA | |
| XXS | | Opal Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XXR | | Opal Physical Gas Daily Spot | Natural Gas | IEPA | |
| XXU | | Opal Physical Inside FERC | Natural Gas | IEPA | |
| XIL | | Panhandle Physical Basis LD1 | Natural Gas | IEPA | |
| XII | | Panhandle Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XIH | | Panhandle Physical Fixed Price Spot | Natural Gas | IEPA | |
| XIK | | Panhandle Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XIJ | | Panhandle Physical Gas Daily Spot | Natural Gas | IEPA | |
| XIM | | Panhandle Physical Inside FERC | Natural Gas | IEPA | |
| XGQ | | PG&E Citygate Physical Basis LD1 | Natural Gas | IEPA | |
| XGR | | PG&E Citygate Physical Fixed Price Monthly | Natural Gas | IEPA | |
| XGV | | PG&E Citygate Physical Fixed Price Spot | Natural Gas | IEPA | |
| XGS | | PG&E Citygate Physical Gas Daily Monthly | Natural Gas | IEPA | |
| XGW | | PG&E Citygate Physical Gas Daily Spot | Natural Gas | IEPA | |
| XGT | | PG&E Citygate Physical Natural Gas Intelligence | Natural Gas | IEPA | |
| DQI | | PG&E Topock Physical Basis LD1 | Natural Gas | IEPA | |
| YUX | | PG&E Topock Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YUW | | PG&E Topock Physical Fixed Price Spot | Natural Gas | IEPA | |
| YUZ | | PG&E Topock Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YUY | | PG&E Topock Physical Gas Daily Spot | Natural Gas | IEPA | |
| YV0 | | PG&E Topock Physical Natural Gas Intelligence | Natural Gas | IEPA | |
| YV9 | | Pine Prairie Physical Basis LD1 | Natural Gas | IEPA | |
| YV8 | | Pine Prairie Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YV7 | | Pine Prairie Physical Fixed Price Spot | Natural Gas | IEPA | |
| BK1 | | Pine Prairie Physical Gas Daily Monthly | Natural Gas | IEPA | |
| Z5J | | Pine Prairie Physical Gas Daily Spot | Natural Gas | IEPA | |
| BK2 | | Pine Prairie Physical Inside FERC | Natural Gas | IEPA | |
| ZAC | | REX Cheyenne Comp Pool Physical Basis LD1 | Natural Gas | IEPA | |
| ZAA | | REX Cheyenne Comp Pool Physical Fixed Price Monthly | Natural Gas | IEPA | |
| ZAB | | REX Cheyenne Comp Pool Physical Fixed Price Spot | Natural Gas | IEPA | |
| ZAD | | REX Cheyenne Comp Pool Physical Gas Daily Monthly | Natural Gas | IEPA | |
| ZAE | | REX Cheyenne Comp Pool Physical Gas Daily Spot | Natural Gas | IEPA | |
| ZAF | | REX Cheyenne Comp Pool Physical Inside FERC | Natural Gas | IEPA | |
| YAU | | Rex E-ANR Physical Basis LD1 | Natural Gas | IEPA | |
| YAT | | Rex E-ANR Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YAS | | Rex E-ANR Physical Fixed Price Spot | Natural Gas | IEPA | |
| YAW | | Rex E-ANR Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YAV | | Rex E-ANR Physical Gas Daily Spot | Natural Gas | IEPA | |
| YAX | | Rex E-ANR Physical Natural Gas Intelligence | Natural Gas | IEPA | |
| YVV | | REX E-MidW Physical Basis LD1 | Natural Gas | IEPA | |
| YVR | | REX E-MidW Physical Fixed Price Monthly | Natural Gas | IEPA | |
| YVQ | | REX E-MidW Physical Fixed Price Spot | Natural Gas | IEPA | |
| YVT | | REX E-MidW Physical Gas Daily Monthly | Natural Gas | IEPA | |
| YVS | | REX E-MidW Physical Gas Daily Spot | Natural Gas | IEPA | |
| YVU | | REX E-MidW Physical Inside FERC | Natural Gas | IEPA | |
| YW1 | | REX E-NGPL Physical Basis LD1 | Natural Gas | IEPA | |
| YVX | | REX E-NGPL Physical Fixed Price Monthly | Natural Gas | IEPA | |