| Jackson Plant | Gas processing plant | Jackson County, TX | Energy Transfer | In service |
| Jackson Prairie | Underground storage | Lewis County, WA | Puget Sound Energy | In service |
| Jacksonville LNG | LNG export terminal | FL | | Approved |
| Jal #3 Plant | Gas processing plant | Lea County, NM | ETC Field Services LLC | In service |
| Jal 3 GP | Gas processing plant | NM | ET Gathering & Processing, LLC | |
| Jal 4 CS | Compressor station | NM | ET Gathering & Processing, LLC | |
| Jal Farm Tank Booster 1287 | Compressor station | NM | Plains Marketing, L.p. | |
| Jal South CS | Compressor station | NM | Southern Union Gas Services, LTD | |
| James Compressor Station | Compressor station | Kingfisher County, OK | Markwest Oklahoma Gas Company, LLC | |
| James Lake Plant | Gas processing plant | Ector County, TX | | |
| James Raley Compressor Station | Compressor station | Texas County, OK | Scout Energy Management LLC | |
| James Ranch Compressor Station | Compressor station | NM | Energy Transfer Partners LP | |
| Jameson | Gas processing plant | Coke County, TX | | |
| Jameson Plant | Gas processing plant | Coke County, TX | West Texas Gas Processing LP | In service |
| Janie Compressor Station | Compressor station | Caddo County, OK | Bounty Transfer LLC | |
| Jayhawk Gas Plant | Gas processing plant | Grant County, KS | Linn Energy | In service |
| Jebro Cheyenne terminal | Terminal | WY | Jebro Incorporated | |
| Jebro Corson terminal | Terminal | SD | Jebro Incorporated | |
| Jebro Sioux City terminal | Terminal | IA | Jebro Incorporated | |
| Jebro Waco terminal | Terminal | TX | Jebro Incorporated | |
| Jefferson Compressor Facility | Compressor station | Major County, OK | Tall Oak Midcon, LLC | |
| Jefferson Energy Terminal | Terminal | TX | Jefferson Gulf Coast Energy Partners | |
| Jefferson Island Salt Dome Natural Gas Storage | Underground storage | LA | | |
| Jefferson Island Storage & Hub LLC | Underground storage | Iberia Parish, LA | Jefferson Island Storage And Hub LLC | In service |
| Jefferson Transload Railport | Terminal | TX | | |
| Jerry Compressor Station | Compressor station | Hughes County, OK | Mustang Fuel Corp | |
| Jesse Compressor Station | Compressor station | Coal County, OK | Petrolink Energy LLC | |
| Jet Compressor Station | Compressor station | Alfalfa County, OK | ET Gathering & Processing, LLC | |
| Jett Booster Station | Compressor station | Beaver County, OK | DCP Operating Company, LP | |
| Jewell Gas Plant | Gas processing plant | WY | Pecan Pipeline (wyoming) LLC | |
| Jicarilla A Ridge Lateral | Compressor station | NM | Hilcorp Energy Company | |
| Jicarilla Apache CDP | Compressor station | NM | Hilcorp Energy Company | |
| Jimmerson CDP | Compressor station | Rusk County, TX | | |
| Joaquin Plant | Gas processing plant | Shelby County, TX | Enable Midstream Partners, LP | In service |
| John Lee Station | Gas processing plant | Burleson County, TX | | |
| John W Stone Oil DSTR Gretna terminal | Terminal | LA | John W Stone Oil DSTR LLC | |
| John W Stone Oil Distributor Belle Chasse terminal | Terminal | LA | John W Stone Oil Distributor LLC | |
| John W Stone Oil Distributor Venice terminal | Terminal | LA | John W Stone Oil Distributor LLC | |
| Johnston City | Underground storage | Williamson County, IL | Ameren Illinois Company | In service |
| Junction Compressor Station | Compressor station | Garvin County, OK | DCP Operating Company, LP | |
| K 9 Compressor Station | Compressor station | Grant County, OK | ET Gathering & Processing, LLC | |
| K Ranch Los Compad Pal CF | Compressor station | Mcmullen County, TX | | |
| K. Petroleum Inc., Grafton Compressor | Compressor station | WV | | |
| KM Liquids Terminals Galena Park | Terminal | TX | KM Liquids Terminals LLC | |
| KM Liquids Terminals Pasadena Truck Rack | Terminal | TX | KM Liquids Terminals LLC | |
| Kalkaska Gas Processing | Gas processing plant | Kalkaska County, MI | Merit Energy Company | In service |
| Kane Gas Plant | Gas processing plant | McKean County, PA | Elkhorn Gas Processing | In service |
| Kaplan Plant | Gas processing plant | Vermilion Parish, LA | PSI Midstream Partners, LP | In service |
| Kappa Compressor Station | Compressor station | Kingfisher County, OK | Markwest Oklahoma Gas Company, LLC | |
| Karbach Compressor Station | Compressor station | Kingfisher County, OK | Tom-Stack | |