| Eagleclaw Gas Gathering, LLC | Owner/operator | Midland, TX | | 1 |
| Eagleclaw Midstream Ventures | Owner/operator | Midland, TX | | 7 |
| Eagleridge Gu, LLC | Owner/operator | | | 52 |
| Eagleridge Operating, LLC | Owner/operator | Dallas, TX | | 45 |
| Earth Pipeline Services, Inc. | Contractor | | 2 | |
| Earth View LLC | Contractor | | | |
| Earthstone Operating, LLC | Owner/operator | Midland, TX | | 1 |
| East Cheyenne Gas Storage, LLC | Owner/operator | Lakewood, CO | 6 | 2 |
| East Dakotas Renewable Energy, LLC | Owner/operator | Detroit, MI | | 1 |
| East Kentucky Midstream | Owner/operator | Jackson, KY | | 1 |
| East Kentucky Power Corporation | Owner/operator | Winchester, KY | | 1 |
| East Resources Inc | Owner/operator | Vienna, WV | | 1 |
| East River Energy Inc | Owner/operator | | | 1 |
| East Tennessee Natural Gas, LLC | Owner/operator | Houston, TX | 21 | 2 |
| East Texas Industrial Gas LLC | Owner/operator | | | |
| East Texas Pipeline Company LLC | Owner/operator | Houston, TX | | 3 |
| East Texas Pipeline Utility, LLC | Owner/operator | | | 2 |
| East Texas Renewables | Owner/operator | McKinney, TX | | 2 |
| Eastern American Corp | Owner/operator | | | |
| Eastern Gas Transmission and Storage, In | Owner/operator | | 2 | |
| Eastern Gas Transmission and Storage, Inc. | Owner/operator | Bridgeport, WV | 20 | 37 |
| Eastern North Carolina Natural Gas | Owner/operator | | | |
| Eastern North Carolina PL Co | Owner/operator | | 2 | |
| Eastern Pipe Line Company | Owner/operator | | | 1 |
| Eastern Shore Natural Gas Company | Owner/operator | Dover, DE | 32 | 2 |
| Eastern Shore Parkesburg Line | Owner/operator | | 1 | |
| Eastern Utilities Contracting Corporation | Contractor | NY | | |
| Eastern Utilities Services, LLC | Contractor | | | |
| Eastman Gas Company, LLC | Owner/operator | Longview, TX | | 11 |
| Eastok Pipeline LLC | Owner/operator | Midland, TX | | 1 |
| Easton Energy Pipelines LLC | Owner/operator | Houston, TX | | 6 |
| Eastrans, LLC | Owner/operator | | | 9 |
| Eaton Rapids Gas Storage System | Owner/operator | | | 1 |
| Eav Operator, LLC Dba Kronos Energy | Owner/operator | Houston, TX | | 1 |
| Echo Canyon Pipeline, LLC | Owner/operator | Barnhart, TX | | 8 |
| Eco Energy Natural Gas LLC | Owner/operator | Franklin, TN | | 2 |
| Eco-Energy DSTR Services LLC | Owner/operator | | | 1 |
| Eco-Energy Distribution Services LLC | Owner/operator | | | 3 |
| Ecoelectrica L.p. | Owner/operator | Penuelas, PR | 4 | |
| Ecology and Environment, Inc. | Third-party inspection | Lancaster, NY | | |
| Economy/stone Midstream Fuel LLC | Owner/operator | | | 1 |
| Edge Gathering Virtual Pipelines 2 LLC | Owner/operator | Dallas, TX | | |
| Edgewater Midstream Pasadena LLC | Owner/operator | Houston, TX | | 22 |
| Edinburg Renewables, LLC | Owner/operator | McKinney, TX | | 2 |
| Edison Mission Operation & Maintenance | Owner/operator | | | |
| Edison Mission Operations And Maintenance | Owner/operator | | | |
| Edmond Citylink LLC | Owner/operator | Edmond, OK | | 1 |
| Efs Midstream LLC | Owner/operator | Irving, TX | | 1 |
| Egan Hub Partners, L.p. | Owner/operator | | | 1 |
| Egan Hub Storage, LLC | Owner/operator | Houston, TX | 3 | 1 |