| La Grange Plant | Gas processing plant | Fayette County, TX | Energy Transfer | In service |
| La Plata # 7 CDP CS | Compressor station | NM | Chevron U.s. A. Inc. | |
| La Plata 9 1 CDP | Compressor station | NM | Hilcorp Energy Company | |
| La Plata CDP # 2 C.S. | Compressor station | NM | Chevron U.s. A. Inc. | |
| La Veta Gas Plant | Gas processing plant | Huerfano County, CO | Tabula Rasa Energy LLC | In service |
| La-Pan | Underground storage | Clay County, TX | Atmos Pipeline - Texas | In service |
| LaBarge-Shute Creek Treating Facility | Gas processing plant | WY | ExxonMobil | |
| Lacey Storage | Underground storage | Barry County, MI | Semco Energy Gas Company | In service |
| Ladder Creek | Gas processing plant | Cheyenne County, CO | DCP Operating Company, LP | In service |
| Lafayette | Gas processing plant | Mckean County, PA | MSL Oil & Gas Corp. | In service |
| Laguna CS | Compressor station | NM | Transwestern Pipeline Company, LLC | |
| Laguna Seca | Compressor station | NM | Harvest Four Corners, LLC | |
| Lake Bloomington | Underground storage | Mclean County, IL | Nicor | In service |
| Lake Charles LNG | LNG import terminal | LA | Energy Transfer | In service |
| Lake Creek Compressor Station | Compressor station | Woods County, OK | ET Gathering & Processing, LLC | |
| Lake Dallas | Underground storage | Denton County, TX | Atmos Pipeline - Texas | In service |
| Lake LaRose Gas Plant | Gas processing plant | St. Martin Parish, LA | Whiskey Bay Gathering Company | In service |
| Lake Loop Compressor Station | Compressor station | NM | Harvest Four Corners, LLC | |
| Lake Murray Compressor Station | Compressor station | Carter County, OK | Bounty Transfer LLC | |
| Lamar Compressor Station | Compressor station | Hughes County, OK | Arkoma Resources LLC | |
| Lambert Compressor Station | Compressor station | Alfalfa County, OK | ET Gathering & Processing, LLC | |
| Lanai Oil Company Inc terminal | Terminal | HI | Lanai Oil Company Inc | |
| Lancaster Plant | Gas processing plant | Weld County, CO | Anadarko Petroleum Corp | In service |
| Lang Compressor Station | Compressor station | Garvin County, OK | ET Gathering & Processing, LLC | |
| Langley Processing Plant | Gas processing plant | Floyd County, KY | Markwest Energy Partners, L.P. | In service |
| Largo Compressor Station | Compressor station | NM | Enterprise Crude Oil LLC | |
| Larose Processing Plant | Gas processing plant | Lafourche Parish, LA | Williams Energy, LLC | In service |
| Larue Compressor Station | Compressor station | NM | Lucid Artesia Company | |
| Lassus Brothers Oil Huntington terminal | Terminal | IN | Lassus Brothers Oil Inc | |
| Lateral #1 CS | Compressor station | NM | Chevron U.s. A. Inc. | |
| Lateral #2 CS | Compressor station | NM | Chevron U.s. A. Inc. | |
| Lateral 4 CS | Compressor station | NM | Chevron U.s. A. Inc. | |
| Lateral A-59 Compressor Station | Compressor station | NM | Harvest Four Corners, LLC | |
| Latigo | Underground storage | Arapahoe County, CO | Colorado Interstate Gas Company, L.L.C. | In service |
| Laurel | Underground storage | Hocking County, OH | Columbia Gas Transmission, LLC | In service |
| Laverne C Booster Station | Compressor station | Harper County, OK | DCP Operating Company, LP | |
| Laverne Central Booster Station | Compressor station | Harper County, OK | DCP Operating Company, LP | |
| Laverne Compressor Station | Compressor station | Beaver County, OK | ET Gathering & Processing, LLC | |
| Law Booster Station | Compressor station | Texas County, OK | DCP Operating Company, LP | |
| Lawtons Storage | Underground storage | Erie County, NY | National Fuel Gas Supply Corporation | In service |
| Lea County Field Department | Compressor station | NM | Southern Union Gas Services, LTD | |
| Lea Midstream, LLC | Compressor station | NM | Lea Midstream, LLC | |
| Lee 11 | Underground storage | Calhoun County, MI | Semco Energy Gas Company | In service |
| Lee 2 | Underground storage | Calhoun County, MI | Semco Energy Gas Company | In service |
| Lee 8 | Underground storage | Calhoun County, MI | Lee 8 Storage Partnership | In service |
| Leedey Compressor Station | Compressor station | Roger Mills County, OK | Oneok Field Services Inc | |
| Leedey Crescendo Compressor Station | Compressor station | Roger Mills County, OK | Oneok Field Services Inc | |
| Leedey Natural Gas Processing | Gas processing plant | Roger Mills County, OK | ONEOK Inc. | In service |
| Leesville | Gas processing plant | Carroll County, OH | Utica East Ohio Midstream LLC | In service |
| Leidy Tamarack | Underground storage | Potter County, PA | Dominion Energy Transmission Co | In service |