| EKI | | ERCOT Houston 345KV Day-Ahead Off-Peak Fixed Price Future | Electricity | IFED | |
| EKF | | ERCOT Houston 345KV Day-Ahead Peak Fixed Price Future | Electricity | IFED | |
| HEC | | ERCOT Houston 345KV Hub Day-Ahead Off-Peak Daily Fixed Price Future | Electricity | IFED | |
| HEA | | ERCOT Houston 345KV Hub Day-Ahead Peak Daily Fixed Price Future | Electricity | IFED | |
| YFP | | ERCOT Houston 345kV Hub HE 0700-2200, 7x Daily Fixed Price | Electricity | IEPA | |
| YFQ | | ERCOT Houston 345kV Hub HE 0700-2200, 7x Fixed Price | Electricity | IEPA | |
| YGX | | ERCOT Houston 345kV Hub HR HE 0700-2200, 7x | Electricity | IEPA | |
| EDK | | ERCOT Houston 345KV Hub Real-Time Peak 7x16 Fixed Price Future | Electricity | IFED | |
| XOE | | ERCOT Houston 345kV Physical ATC Daily Fixed Price | Electricity | IEPA | |
| XRU | | ERCOT Houston 345kV Physical ATC Fixed Price | Electricity | IEPA | |
| YCK | | ERCOT Houston 345kV Physical HE 0700-1100 Fixed Price | Electricity | IEPA | |
| XOG | | ERCOT Houston 345kV Physical HE 1-6, 23, 24, 7x Daily Fixed Price | Electricity | IEPA | |
| XPK | | ERCOT Houston 345kV Physical HE 1-6, 23, 24, 7x Fixed Price | Electricity | IEPA | |
| Y1U | | ERCOT Houston 345kV Physical HE 1000-1700 Fixed Price 5x | Electricity | IEPA | |
| Y1T | | ERCOT Houston 345kV Physical HE 1000-1700 Fixed Price 5x Daily Fixed Price | Electricity | IEPA | |
| Y1M | | ERCOT Houston 345kV Physical HE 1000-1700 Fixed Price 7x | Electricity | IEPA | |
| Y1L | | ERCOT Houston 345kV Physical HE 1000-1700 Fixed Price 7x Daily Fixed Price | Electricity | IEPA | |
| XNY | | ERCOT Houston 345kV Physical HE 1200-2200 Daily Fixed Price | Electricity | IEPA | |
| XSB | | ERCOT Houston 345kV Physical HE 1200-2200 Fixed Price | Electricity | IEPA | |
| X1O | | ERCOT Houston 345kV Physical HE 1800-2200 Fixed Price 7x | Electricity | IEPA | |
| X1N | | ERCOT Houston 345kV Physical HE 1800-2200 Fixed Price 7x Daily | Electricity | IEPA | |
| XRY | | ERCOT Houston 345kV Physical HR ATC | Electricity | IEPA | |
| YCP | | ERCOT Houston 345kV Physical HR HE 0700-1100 | Electricity | IEPA | |
| XQD | | ERCOT Houston 345kV Physical HR HE 1-6, 23, 24, 7x | Electricity | IEPA | |
| XQG | | ERCOT Houston 345kV Physical HR HE 1200-2200 | Electricity | IEPA | |
| YDB | | ERCOT Houston 345kV Physical HR HE 1700-2200 | Electricity | IEPA | |
| X1U | | ERCOT Houston 345kV Physical HR HE 1800-2200 7x | Electricity | IEPA | |
| XQF | | ERCOT Houston 345kV Physical HR Off-Peak | Electricity | IEPA | |
| XQE | | ERCOT Houston 345kV Physical HR Off-Peak Weekend HE 0700-2200 | Electricity | IEPA | |
| YDV | | ERCOT Houston 345kV Physical HR Peak HE 0700-1100,1700-2200 | Electricity | IEPA | |
| XQC | | ERCOT Houston 345kV Physical HR Peak HE 0700-2200 | Electricity | IEPA | |
| XNZ | | ERCOT Houston 345kV Physical Off-Peak Daily Fixed Price | Electricity | IEPA | |
| XPM | | ERCOT Houston 345kV Physical Off-Peak Fixed Price | Electricity | IEPA | |
| XOF | | ERCOT Houston 345kV Physical Off-Peak Weekend HE 0700-2200 Daily Fixed Price | Electricity | IEPA | |
| XPL | | ERCOT Houston 345kV Physical Off-Peak Weekend HE 0700-2200 Fixed Price | Electricity | IEPA | |
| YCJ | | ERCOT Houston 345kV Physical Peak HE 0700-1100 Daily Fixed Price | Electricity | IEPA | |
| YDO | | ERCOT Houston 345kV Physical Peak HE 0700-1100,1700-2200 Daily Fixed Price | Electricity | IEPA | |
| YDP | | ERCOT Houston 345kV Physical Peak HE 0700-1100,1700-2200 Fixed Price | Electricity | IEPA | |
| XOH | | ERCOT Houston 345kV Physical Peak HE 0700-2200 Daily Fixed Price | Electricity | IEPA | |
| XPJ | | ERCOT Houston 345kV Physical Peak HE 0700-2200 Fixed Price | Electricity | IEPA | |
| YCU | | ERCOT Houston 345kV Physical Peak HE 1700-2200 Daily Fixed Price | Electricity | IEPA | |
| YCV | | ERCOT Houston 345kV Physical Peak HE 1700-2200 Fixed Price | Electricity | IEPA | |
| ECJ | | ERCOT Houston 345KV Real-Time 7x8 Fixed Price Future | Electricity | IFED | |
| ER0 | | ERCOT Houston 345KV Real-Time Daily HE 1800-2200 Fixed Price Future, 7X | Electricity | IFED | |
| ER5 | | ERCOT Houston 345KV Real-Time Daily TB4 Fixed Price Future, 7X | Electricity | IFED | |
| ERM | | ERCOT Houston 345KV Real-Time HE 1000-1700, 7X | Electricity | IFED | |
| HED | | ERCOT Houston 345KV Real-Time Off-Peak Daily Fixed Price Future | Electricity | IFED | |
| HEB | | ERCOT Houston 345KV Real-Time Off-Peak Fixed Price Future | Electricity | IFED | |
| EDB | | ERCOT Houston 345KV Real-Time Peak 2x16 Fixed Price Future | Electricity | IFED | |
| EHD | | ERCOT Houston 345KV Real-Time Peak Daily Fixed Price Future | Electricity | IFED | |