| Karnes C/f #12 Drip | Gas processing plant | Karnes County, TX | | |
| Kastler Dew Point Plant | Gas processing plant | Daggett County, UT | Dominion Energy Questar Pipeline, LLC | In service |
| Katie Compressor Station | Compressor station | Garvin County, OK | ET Gathering & Processing, LLC | |
| Katie Lateral Compressor Station | Compressor station | Washita County, OK | Oneok Field Services Inc | |
| Katy Booster Station | Compressor station | Oklahoma County, OK | Oklahoma Gas Gathering LLC | |
| Katy Hub & Storage | Underground storage | Fort Bend County, TX | Enstor Katy Storage & Transplp | In service |
| Kauai Petroleum Co LTD terminal | Terminal | HI | Kauai Petroleum Co LTD | |
| Kayla West Compressor Station | Compressor station | Mcintosh County, OK | Abundance Energy Services LLC | |
| Kayser Compressor Station | Compressor station | Washita County, OK | Diversified Production | |
| Keelor Storage | Underground storage | Mckean County, PA | National Fuel Gas Supply Corporation | In service |
| Keg Shell Fed 35 O CTB | Compressor station | NM | Cog Operating LLC | |
| Kellogg Compressor Station | Compressor station | Logan County, OK | ET Gathering & Processing, LLC | |
| Kellyville Booster Station | Compressor station | Creek County, OK | Petrolink Energy LLC | |
| Kellyville Compressor Station | Compressor station | Creek County, OK | Oneok Gas Transportation, LLC | |
| Kelsey 1 31 Compressor Station | Compressor station | Beckham County, OK | Latigo Petroleum LLC | |
| Kelton Gas Plant | Gas processing plant | Wheeler County, TX | Durango Midstream | In service |
| Kenai | Underground storage | Kenai Peninsula County, AK | Hilcorp Alaska, LLC | In service |
| Kenai LNG | LNG export terminal | AK | Trans-Foreland | In service |
| Kennedy Lost Creek | Underground storage | Lewis County, WV | Dominion Energy Transmission Co | In service |
| Kenny CS - Beeline Gas Systems | Compressor station | NM | Beeline Gas Systems | |
| Kenova | Gas processing plant | Kanawha County, WV | Markwest Energy Partners, L.P. | In service |
| Kensington | Gas processing plant | Columbiana County, OH | Utica East Ohio Midstream LLC | In service |
| Kent 1 6 Compressor Station | Compressor station | Pittsburg County, OK | Trinity Operating Usg LLC | |
| Kentucky Compressor Station | Compressor station | Grady County, OK | Blue Mountain Midstream LLC | |
| Keota | Underground storage | Washington County, IA | Natural Gas Pipeline Company of America LLC | In service |
| Keota Gas Plant | Gas processing plant | Weld County, CO | Noble Midstream Services, LLC | In service |
| Kermit | Gas processing plant | Mingo County, WV | Core Appalachia Operating LLC | In service |
| Kerns Canaan Pod 5 Compressor Station | Compressor station | Pittsburg County, OK | Markwest Oklahoma Gas Company, LLC | |
| Ketchum Ranch Compressor Station | Compressor station | Stephens County, OK | Targa Pipeline Midcontinent LLC | |
| Kettle Booster Station | Compressor station | Roger Mills County, OK | DCP Operating Company, LP | |
| Kettle Island | Underground storage | Bell County, KY | Delta Natural Gas Co Inc | |
| Key Petrol LLC terminal | Terminal | TX | Key Petrol LLC | |
| Keyera Energy Kei Hull Terminal | Terminal | TX | Keyera Energy, Inc. | |
| Keyera Energy Wildhorse Terminal | Terminal | OK | Keyera Energy, Inc. | |
| Keyes Compressor Station | Compressor station | Cimarron County, OK | Colorado Interstate Gas Company, L.L.C. | |
| Keystone | Gas processing plant | Winkler County, TX | ETC Field Services LLC | In service |
| Keystone Gas Plant | Gas processing plant | Warren County, PA | Elkhorn Gas Processing | In service |
| Keystone Plant | Gas processing plant | Butler County, PA | Markwest Liberty Midstream & Resources, LLC | In service |
| Kilgore Station | Compressor station | Gregg County, TX | | |
| Kilo Compressor Station | Compressor station | Coal County, OK | VM Arkoma Stack, LLC | |
| Kinder Morgan Calnev P L Barstow terminal | Terminal | CA | Kinder Morgan Calnev P L LLC | |
| Kinder Morgan Calnev P L Las Vegas terminal | Terminal | NV | Kinder Morgan Calnev P L LLC | |
| Kinder Morgan Carteret terminal | Terminal | NJ | Kinder Morgan | |
| Kinder Morgan Energy Partner Harbor Island terminal | Terminal | WA | Kinder Morgan Energy Partner LP | |
| Kinder Morgan Euless Loading Facility terminal | Terminal | TX | Kinder Morgan | |
| Kinder Morgan Galena Park West GP West Chemical terminal | Terminal | TX | Kinder Morgan Galena Park West LLC | |
| Kinder Morgan Harvey terminal | Terminal | LA | Kinder Morgan | |
| Kinder Morgan Keystone Gas Storage Keystone | Underground storage | Winkler County, TX | Kinder Morgan Keystone Gas Storage, LLC | In service |
| Kinder Morgan Liq TRMNLS Carson terminal | Terminal | CA | Kinder Morgan Liq TRMNLS LLC | |
| Kinder Morgan Liq TRMNLS Pasadena terminal | Terminal | TX | Kinder Morgan Liq TRMNLS LLC | |