| Kindermorgan Southeast Terminals Chesapeake | Terminal | VA | Kindermorgan Southeast Terminals LLC | |
| Kindermorgan Southeast Terminals Spartanburg | Terminal | SC | Kindermorgan Southeast Terminals LLC | |
| Kindermorgan Tampa Terminal | Terminal | FL | Kindermorgan | |
| King Booster Station | Compressor station | Kingfisher County, OK | DCP Operating Company, LP | |
| King Ranch Gas Plant | Gas processing plant | Kleberg County, TX | ETC Texas Pipeline, Ltd. | In service |
| Kingfisher | Gas processing plant | Kingfisher County, OK | DCP Operating Company, LP | In service |
| Kingfisher Compressor Station | Compressor station | Kingfisher County, OK | Markwest Oklahoma Gas Company, LLC | |
| Kingfisher East Compressor Station | Compressor station | Kingfisher County, OK | Mustang Gas Products, LLC | |
| Kingfisher Midstream, LLC | Gas processing plant | Kingfisher County, OK | Kingfisher Midstream, LLC | In service |
| Kingfisher West Compressor Station | Compressor station | Kingfisher County, OK | Mustang Gas Products, LLC | |
| Kingman Gas Plant | Gas processing plant | Kingman County, KS | Durango Midstream | In service |
| Kinter | Underground storage | Indiana County, PA | Peoples Gas Company LLC | In service |
| Kion Compressor Station | Compressor station | Blaine County, OK | ET Gathering & Processing, LLC | |
| Kiowa Compressor Station | Compressor station | Pittsburg County, OK | ET Gathering & Processing, LLC | |
| Kiowa Treating Plant | Gas processing plant | Pittsburg County, OK | Kinder Morgan Treating LP | |
| Kirby Hills | Underground storage | Solano County, CA | Lodi Gas Storage, LLC | In service |
| Kirk Ranch (bobby Burns #1) | Underground storage | Fremont County, WY | Black Hills Energy | In service |
| Kirkwood | Underground storage | Hopkins County, KY | Atmos Energy Inc | In service |
| Kitty Gas Plant | Gas processing plant | WY | | |
| Kleffman D Compressor Station | Compressor station | Texas County, OK | DCP Operating Company, LP | |
| Knight Compressor Station | Compressor station | Beckham County, OK | Palo Duro Pipelines (texas Gathering), L.p. | |
| Knights Compressor Station | Compressor station | Ellis County, OK | ET Gathering & Processing, LLC | |
| Knowles Road Compressor Station | Compressor station | Beaver County, OK | ET Gathering & Processing, LLC | |
| Knutson | Gas processing plant | ND | Legacy Reserves Operating LP | |
| Knutson Gas Plant | Gas processing plant | Billings County, ND | Summit Resources | |
| Koch Fertilizer Plant | Gas processing plant | Garfield County, OK | Koch Fertilizer Enid LLC | |
| Kolvin Booster Station | Compressor station | Creek County, OK | Skye Ok LLC | |
| Konold | Underground storage | Pratt County, KS | Mid-Continent Market Center | In service |
| Kovar CCF Compressor Station | Compressor station | Stephens County, OK | Bounty Transfer LLC | |
| Kraken Compressor Station | Compressor station | NM | Eog Resources Inc | |
| Kremlin Calcining Plant | Gas processing plant | Garfield County, OK | Oxbow Calcining LLC | |
| Kremlin Compressor Station | Compressor station | Garfield County, OK | Targa Pipeline Midcontinent Westok LLC | |
| Kripple Kreek Gas Plant | Gas processing plant | Montague County, TX | Pecan Pipeline Co | In service |
| Krotz Springs Gas Plant | Gas processing plant | St. Landry Parish, LA | JP Oil Company, LLC | In service |
| Kutz Gas Plant | Gas processing plant | San Juan County, NM | Williams Midstream Services, LLC | In service |
| Kutz Y-Station | Compressor station | NM | Harvest Four Corners, LLC | |
| L C Kelly 1/11 CDP | Compressor station | NM | Hilcorp Energy Company | |
| L C Kelly 16 CDP | Compressor station | NM | Hilcorp Energy Company | |
| L C Kelly 2 CDP | Compressor station | NM | Hilcorp Energy Company | |
| L C Kelly 8 CDP | Compressor station | NM | Hilcorp Energy Company | |
| L-35 Straddle Compressor Station | Compressor station | NM | Hilcorp Energy Company | |
| L-6 Straddle Compressor Station | Compressor station | NM | Hilcorp Energy Company | |
| LBC Baton Rouge terminal | Terminal | LA | LBC Baton Rouge | |
| LBC Houston Seabrook terminal | Terminal | TX | LBC Houston, L.p. | |
| LM4 Gas Plant | Gas processing plant | Mckenzie County, ND | Targa/Hess JV | |
| La Cosa Compressor Station | Compressor station | NM | Harvest Four Corners, LLC | |
| La Feria Terminal | Terminal | TX | | |
| La Gloria | Gas processing plant | Jim Wells County, TX | DCP Operating Company, LP | In service |
| La Goleta | Underground storage | Santa Barbara County, CA | Southern California Gas Co | In service |
| La Grange | Gas processing plant | Fayette County, TX | | |