| 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 | |
| EIR | | EIA End of Draw Index | Natural Gas | IFED | |
| EIO | | EIA End of Storage Index | Natural Gas | IFED | |
| CTP | | Enable Gas Basis Future | Natural Gas | IFED | |
| CTI | | Enable Gas Index Future | Natural Gas | IFED | |
| CTS | | Enable Gas Swing Future | Natural Gas | IFED | |
| DWN | | Enbridge Dawn Basis Future | Natural Gas | IFED | |
| CVW | | Enbridge Dawn Index Future | Natural Gas | IFED | |
| CVX | | Enbridge Dawn Swing Future | Natural Gas | IFED | |
| E2B | | Enbridge Station 2 Basis Future | Natural Gas | IFED | |
| E2I | | Enbridge Station 2 Index Future | Natural Gas | IFED | |
| E2S | | Enbridge Station 2 Swing Future | Natural Gas | IFED | |
| LDB | | Entain plc | Single Stock Options | IFLO | |
| 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 | |
| PER | | EP Permian Basis Future | Natural Gas | IFED | |
| FQP | | EP Permian Fixed Price Future | Natural Gas | IFED | |
| PEI | | EP Permian Index Future | Natural Gas | IFED | |
| PES | | EP Permian Swing Future | Natural Gas | IFED | |
| SNJ | | EP San Juan Basis Future | Natural Gas | IFED | |
| OPU | | EP San Juan Fixed Price Future | Natural Gas | IFED | |
| SNI | | EP San Juan Index Future | Natural Gas | IFED | |
| SNS | | EP San Juan Swing Future | Natural Gas | IFED | |
| 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 | |
| EWB | | EP West Texas Basis Future | Natural Gas | IFED | |
| EWI | | EP West Texas Index Future | Natural Gas | IFED | |
| EWS | | EP West Texas Swing Future | Natural Gas | IFED | |
| XOZ | | ERCOT Ancillary Services Non-Spin ATC Daily Fixed Price | Electricity | IEPA | |
| XQU | | ERCOT Ancillary Services Non-Spin ATC Fixed Price | Electricity | IEPA | |
| XT0 | | ERCOT Ancillary Services Regulation Down ATC Daily Fixed Price | Electricity | IEPA | |
| XT1 | | ERCOT Ancillary Services Regulation Down ATC Fixed Price | Electricity | IEPA | |
| XT2 | | ERCOT Ancillary Services Regulation Up ATC Daily Fixed Price | Electricity | IEPA | |
| XT3 | | ERCOT Ancillary Services Regulation Up ATC Fixed Price | Electricity | IEPA | |
| XT4 | | ERCOT Ancillary Services Responsive Reserve Service ATC Daily Fixed Price | Electricity | IEPA | |
| XT5 | | ERCOT Ancillary Services Responsive Reserve Service ATC Fixed Price | Electricity | IEPA | |
| ECR | | ERCOT Capacity Responsive Reserve Future | Electricity | IFED | |
| ECY | | ERCOT Contingency Reserve Service Future | Electricity | IFED | |
| EDF | | ERCOT Daily Load Future | Electricity | IFED | |
| ERB | | ERCOT Houston 345 KV Real-Time HE 1800-2200 Fixed Price Future | Electricity | IFED | |