| PKM Cochin Mankato Minnesota terminal | Terminal | MN | PKM Cochin LLC | |
| PKM Cochin Maxbass terminal | Terminal | ND | PKM Cochin LLC | |
| PKM Cochin Milford Indiana terminal | Terminal | IN | PKM Cochin LLC | |
| Pacific Booster Station | Compressor station | Canadian County, OK | DCP Operating Company, LP | |
| Pacific Terminal Services Portland | Terminal | OR | Pacific Terminal Services Inc | |
| Pack Mule Compressor Station | Compressor station | Roger Mills County, OK | ET Gathering & Processing, LLC | |
| Packsaddle Compressor Station | Compressor station | Ellis County, OK | Oneok Field Services Inc | |
| Paden Plant | Gas processing plant | Okfuskee County, OK | Kinder Morgan (Scissortail Energy LLC), Petrolink Energy LLC | In service |
| Paduca Breaks CGF | Compressor station | NM | Delaware Basin Midstream LLC | |
| Painter | Gas processing plant | Uinta County, WY | Merit Energy Company, North Shore Exploration & Production LLC | In service |
| Paktank Terminal Los Angeles Vopak Terminal Los Angeles Inc | Terminal | CA | Paktank Terminal Los Angeles | |
| Palermo | Gas processing plant | ND | Aux Sable | |
| Palo Duro G And P Oklahoma County Line Compressor Station | Compressor station | Washita County, OK | Palo Duro G And P Oklahoma LP | |
| Palo Duro G And P Oklahoma Mayfield Compressor Station | Compressor station | Beckham County, OK | Palo Duro G And P Oklahoma LP | |
| Palo Duro Gas Plant | Gas processing plant | NM | Lucid Artesia Company | |
| Palo Duro Pipelines Texas Gathering Cheyenne Compressor Station | Compressor station | Roger Mills County, OK | Palo Duro Pipelines (texas Gathering), L.p. | |
| Pan Pacific Broken Bow Plant | Gas processing plant | Mccurtain County, OK | Pan Pacific | |
| PanHandle P1 | Compressor station | NM | Pre-Ongard Well Operator | |
| Panhandle Eastern Pipeline Seiling Compressor Station | Compressor station | Dewey County, OK | Panhandle Eastern Pipe Line Company, LP | |
| Panhandle P-1 Compressor Station | Compressor station | NM | Transwestern Pipeline Company, LLC | |
| Panhandle Superplant | Gas processing plant | Hutchinson County, TX | DCP Operating Company, LP | In service |
| Panola | Gas processing plant | Panola County, TX | Enable Texola G&P, LLC | In service |
| Panola Central Compressor Station | Compressor station | Latimer County, OK | CH4 Midstream, LLC | |
| Panola Compressor Station | Compressor station | Latimer County, OK | ET Gathering & Processing, LLC | |
| Panola East Compressor Station | Compressor station | Latimer County, OK | CH4 Midstream, LLC | |
| Panola II Processing Plant | Gas processing plant | Panola County, TX | BTA Gas Processing LLC | In service |
| Panola South Compressor Station | Compressor station | Latimer County, OK | CH4 Midstream, LLC | |
| Panola Treating Plant | Gas processing plant | Latimer County, OK | CH4 Midstream, LLC | |
| Panther Compressor Station | Compressor station | Logan County, OK | Otter Creek Midstream | |
| Panther Creek Compressor Station | Compressor station | Garvin County, OK | DCP Operating Company, LP | |
| Panther Creek Gas Plant | Gas processing plant | Custer County, OK | Oneok Field Services Inc | |
| Panther Creek Natural Gas Processing | Gas processing plant | Custer County, OK | ONEOK Inc. | In service |
| Panther Mountain Compressor Station | Compressor station | Pittsburg County, OK | Petrolink Energy LLC | |
| Panther Plant | Gas processing plant | Upton County, TX | Energy Transfer | In service |
| Papco Newport News terminal | Terminal | VA | Papco Inc | |
| Par Hawaii Kamuela terminal | Terminal | HI | Par Hawaii Inc | |
| Par Hawaii Refining Hilo terminal | Terminal | HI | Par Hawaii Refining, LLC | |
| Par Hawaii Refining Lihue terminal | Terminal | HI | Par Hawaii Refining, LLC | |
| Par Hawaii Refining Maui terminal | Terminal | HI | Par Hawaii Refining, LLC | |
| Par Hawaii Refining Par Hawaii Refining Hilo terminal | Terminal | HI | Par Hawaii Refining, LLC | |
| Par Hawaii Refining Sand Island terminal | Terminal | HI | Par Hawaii Refining, LLC | |
| Parachute Creek Gas Plants | Gas processing plant | Garfield County, CO | Williams | In service |
| Parker Compressor Station | Compressor station | Coal County, OK | ET Gathering & Processing, LLC | |
| Partello | Underground storage | Calhoun County, MI | Michigan Gas Utilities Co | In service |
| Pascagoula Gas Processing Plant | Gas processing plant | Jackson County, MS | Enterprise Gas Processing, LLC | In service |
| Patrick Draw Gas Plant | Gas processing plant | Sweetwater County, WY | Anadarko Petroleum Corp | In service |
| Patsy Compressor Station | Compressor station | Okfuskee County, OK | Petrolink Energy LLC | |
| Patterson II Plant | Gas processing plant | St. Mary Parish, LA | Plains Gas Solutions, LLC | In service |
| Paul Lucille Compressor Station | Compressor station | Caddo County, OK | Bounty Transfer LLC | |
| Pauls Valley Compressor Station | Compressor station | Garvin County, OK | Enerfin Gathering LLC | |