| WFS Moore CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Navajo CDP CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS North Crandall CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Pipken CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Pump Mesa CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Rosa Compressor Station | Compressor station | NM | Willams Four Corners, LLC | |
| WFS SJ 29-6 #4 CDP CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS SJ 30-8 #1 CDP CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Snowshoe Straddle CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Trunk B CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Trunk G CS | Compressor station | NM | Willams Four Corners, LLC | |
| WFS Trunk N Compressor Station | Compressor station | NM | Willams Four Corners, LLC | |
| WPMT NGL | Gas processing plant | Yoakum County, TX | Occidental Permian Limited Partnership | In service |
| WPMT NGL Plant | Gas processing plant | Gaines County, TX | | |
| WSP USA Spindletop | Underground storage | Jefferson County, TX | WSP USA Inc. | In service |
| WT Terminal Oswego LLC | Terminal | NY | WT Terminal Oswego LLC | |
| Wadley Compressor Station | Compressor station | Pittsburg County, OK | Sanguine Gas Exploration, LLC | |
| Waha Plant | Gas processing plant | Pecos County, TX | ETC Field Services LLC | In service |
| Wakita Compressor Station | Compressor station | Grant County, OK | Targa Pipeline Midcontinent Westok LLC | |
| Wald Ranch Compressor Station | Compressor station | Blaine County, OK | ET Gathering & Processing, LLC | |
| Walker Compressor Station | Compressor station | Woodward County, OK | Targa Pipeline Midcontinent Westok LLC | |
| Wamsutter Condensate Stabilization Facility | Gas processing plant | WY | Wamsutter, LLC | |
| Ward Compressor Station Northern Rows Compressor Station | Compressor station | Canadian County, OK | Oneok Field Services Inc | |
| Wardville Compressor Station | Compressor station | Atoka County, OK | ET Gathering & Processing, LLC | |
| Warrior Asphalt Tuscaloosa terminal | Terminal | AL | Warrior Asphalt Inc | |
| Washington | Underground storage | St. Landry Parish, LA | Transcontinental Gas Pipeline Compan | In service |
| Washington 10 Complex | Underground storage | Macomb County, MI | Michigan Consolidated Gas Company | In service |
| Washington Ranch | Underground storage | Eddy County, NM | El Paso Natural Gas Company, L.L.C. | In service |
| Washita Compressor Station | Compressor station | Carter County, OK | Xto Energy Inc | |
| Washita River Compressor Station | Compressor station | Washita County, OK | ET Gathering & Processing, LLC | |
| Waskom | Gas processing plant | Harrison County, TX | | |
| Waskom Gas Processing | Gas processing plant | Harrision County, TX | Enable Midstream Partners, LP | In service |
| Wasson ODC Unit CO2 Removal Plant | Gas processing plant | Yoakum County, TX | Occidental Permian Limited Partnership | In service |
| Wastewater Treatment Plant | Gas processing plant | Comanche County, OK | American Water MSG | |
| Watco Transloading Dravosburg terminal | Terminal | PA | Watco Transloading LLC | |
| Waterfront Enterprises Gateway Terminal | Terminal | CT | Waterfront Enterprises Inc | |
| Waterfront Petroleum Jefferson Asphalt Terminal | Terminal | MI | Waterfront Petroleum | |
| Waterfront Petroleum Terminal Dearborn | Terminal | MI | Waterfront Petroleum Terminal | |
| Waterville | Underground storage | Waseca County, MN | Centerpoint Energy | In service |
| Watford City Gas Plant | Gas processing plant | McKenzie County, ND | Hiland Partners, Kinder Morgan | In service |
| Watkins Compressor Site | Compressor station | Beaver County, OK | DCP Operating Company, LP | |
| Watkins Compressor Station | Compressor station | Marshall County, OK | Targa Pipeline Midcontinent LLC | |
| Watonga Booster Station | Compressor station | Blaine County, OK | DCP Operating Company, LP | |
| Watonga Compressor Station | Compressor station | Blaine County, OK | Markwest Oklahoma Gas Company, LLC | |
| Wattenberg Gas Plant | Gas processing plant | Adams County, CO | Anadarko Petroleum Corp | In service |
| Waukomis Booster Station | Compressor station | Garfield County, OK | Mustang Gas Products, LLC | |
| Waukomis Compressor Station | Compressor station | Garfield County, OK | Targa Pipeline Midcontinent Westok LLC | |
| Waverly | Underground storage | Morgan County, IL | Southwest Gas Storage Company | In service |
| Way South Compressor Station | Compressor station | Kingfisher County, OK | Bce-Mach III Midstream Holdings LLC | |
| Way South Compressor Station 1 | Compressor station | Kingfisher County, OK | Bce-Mach III Midstream Holdings LLC | |