| Waynard Compressor Station | Compressor station | Woods County, OK | Targa Pipeline Midcontinent Westok LLC | |
| Wayne | Underground storage | Ashland County, OH | Columbia Gas Transmission, LLC | In service |
| Waynoka Plant | Gas processing plant | Woods County, OK | Targa Pipeline Midcontinent Westok LLC, Tpl Mid-Continent Westok, LLC | In service |
| Weatherford Compressor Station | Compressor station | Custer County, OK | Bounty Transfer LLC | |
| Weaver | Underground storage | Ashland County, OH | Columbia Gas Transmission, LLC | In service |
| Webb | Underground storage | Grant County, OK | Southern Star Central Gas Pipeline, Inc. | In service |
| Webb Booster Station | Compressor station | Dewey County, OK | DCP Operating Company, LP | |
| Webber Tanks Inc terminal | Terminal | ME | Webber Tanks Inc | |
| Webster | Underground storage | Allegheny County, PA | Equitrans, L.P. | In service |
| Wellendorf Storage | Underground storage | Mckean County, PA | National Fuel Gas Supply Corporation | In service |
| Wellington | Underground storage | Lorain County, OH | Columbia Gas Transmission, LLC | In service |
| Wells Compressor Station | Compressor station | Mcintosh County, OK | Wentworth Operating CO | |
| Wellston Compressor Station | Compressor station | Lincoln County, OK | Petrolink Energy LLC | |
| Welty Compressor Station | Compressor station | Okfuskee County, OK | Enable Oklahoma Intrastate Transmission, LLC | |
| Wendlandt Compressor Station | Compressor station | Haskell County, OK | Abundance Energy Services LLC | |
| West Carney Compressor Station | Compressor station | Logan County, OK | Superior Midstream, LLC | |
| West Chitwood Booster Station | Compressor station | Grady County, OK | DCP Operating Company, LP | |
| West Clear Lake | Underground storage | Harris County, TX | Kinder Morgan Tejas Pipeline | In service |
| West Columbus | Underground storage | St. Clair County, MI | Michigan Consolidated Gas Company | In service |
| West Dollarhide Drinkard Unit Bat | Gas processing plant | NM | Chevron U.s. A. Inc. | |
| West Durham Compressor Station | Compressor station | Roger Mills County, OK | Oneok Field Services Inc | |
| West Edmond Compressor Station | Compressor station | Logan County, OK | DCP Operating Company, LP | |
| West El Reno Compressor Station | Compressor station | Canadian County, OK | Oneok Field Services Inc | |
| West Foss Compressor Station | Compressor station | Roger Mills County, OK | Oneok Field Services Inc | |
| West Greenville | Underground storage | Muhlenberg County, KY | Texas Gas Transmission, LLC | In service |
| West Hackberry Salt Dome Crude Oil Storage | Underground storage | LA | | |
| West Hackberry Salt Dome LPG Storage | Underground storage | LA | | |
| West Hackberry Salt Dome Natural Gas Storage | Underground storage | LA | | |
| West Independence Storage | Underground storage | Allegany County, NY | National Fuel Gas Supply Corporation | In service |
| West Kinta Compressor Station | Compressor station | Haskell County, OK | Merit Energy Company | |
| West Lenapah Compressor Station | Compressor station | Nowata County, OK | Nfcda Energy LLC | |
| West Lucien Compressor Station | Compressor station | Garfield County, OK | ET Gathering & Processing, LLC | |
| West Marlow Compressor Station | Compressor station | Stephens County, OK | ET Gathering & Processing, LLC | |
| West Paradigm Compressor Station | Compressor station | Seminole County, OK | Petrolink Energy LLC | |
| West Peetz/lewis Creek | Underground storage | Logan County, CO | East Cheyenne Gas Storage, LLC | In service |
| West Plant | Gas processing plant | Oklahoma County, OK | Haskell Lemon Group LLC | |
| West Purcell Compressor Station | Compressor station | Mcclain County, OK | Enerfin Gathering LLC | |
| West Rusk CDP | Compressor station | Rusk County, TX | | |
| West Smallwood Compressor Station | Compressor station | Custer County, OK | Oneok Field Services Inc | |
| West Union NGL Extraction Plant | Gas processing plant | Doddridge County, WV | Dominion Energy Transmission Co | In service |
| West Wilburton Compressor Station | Compressor station | Pittsburg County, OK | ET Gathering & Processing, LLC | |
| West Womack Compressor Station | Compressor station | Lincoln County, OK | Petrolink Energy LLC | |
| Western Emulsions Billings terminal | Terminal | MT | Western Emulsions Inc | |
| Western Emulsions Wei North Salt Lake terminal | Terminal | UT | Western Emulsions Inc | |
| Western Emulsions Wei Woods Cross terminal | Terminal | UT | Western Emulsions Inc | |
| Western Farmers Anadarko Plant | Gas processing plant | Caddo County, OK | Western Farmers Electric Cooperative | |
| Western Hospah Station | Compressor station | NM | Western Refining Pipeline Company | |
| Westmore Fuels terminal | Terminal | NY | Westmore Fuels | |
| Westwin Elements Pilot Plant | Gas processing plant | Comanche County, OK | Westwin Elements | |
| Wetumka | Gas processing plant | Hughes County, OK | ET Gathering & Processing, LLC, Enable Products LLC | In service |