| URUnited R.t.m., INC. | Los Angeles | CA | — | ◇ UNVERIFIED |
| USUnites States Coastguard Ca | San Pedro | CA | — | ◇ UNVERIFIED |
| UUnocal | Saugus | CA | — | ◇ UNVERIFIED |
| URUnocal Retort | Unk | CO | — | ◇ UNVERIFIED |
| UOUS Oil and Refining CO Marine Terminal | Tacoma | WA | — | ◇ UNVERIFIED |
| UPUS Postal Service | Portland | OR | — | ◇ UNVERIFIED |
| VAValero Arkansas City Terminal | Arkansas City | KS | — | ◇ UNVERIFIED |
| VBValero Benicia Asphalt Plant | Benicia | CA | — | ◇ UNVERIFIED |
| VCValero Corner Store 2351 | Sweeny | TX | — | ◇ UNVERIFIED |
| VMValero Marketing and Supply Company | Meraux | LA | — | ◇ UNVERIFIED |
| VOValero Olympic Tank Farm | Wilmington | CA | — | ◇ UNVERIFIED |
| VPValero Partners Three Rivers | Three Rivers | TX | — | ◇ UNVERIFIED |
| VRValero Refinery Three Rivers | Three Rivers | TX | — | ◇ UNVERIFIED |
| VRValero Refining Company | Benicia | CA | — | ◇ UNVERIFIED |
| VTValero Texas City Refinery Fire | Texas City | TX | — | ◇ UNVERIFIED |
| VIVenta INC | Broomfield | CO | — | ◇ UNVERIFIED |
| VRVentura Refining and Transmission, LLC / Thomas Rfnry | Thomas | OK | — | ◇ UNVERIFIED |
| VWVeolia Water North America Operating Services, LLC | Corpus Christi | TX | — | ◇ UNVERIFIED |
| VOVertex Oil Swap (vrtxsw) - Marrero Terminal | Marrero | LA | — | ◇ UNVERIFIED |
| VPVicksburg Petroleum Products LLC | Vicksburg | MS | — | ◇ UNVERIFIED |
| VEVillage Electric Plant | Merrillan | WI | — | ◇ UNVERIFIED |
| VTVopak Terminal Perth Amboy | Perth Amboy | NJ | — | ◇ UNVERIFIED |
| VAVulcan Asphalt Company | Cordova | AL | — | ◇ UNVERIFIED |
| WLW2fuel LLC | Keokuk | IA | — | ◇ UNVERIFIED |
| WTWa317935129 - Tesoro Refining & Marketing Company LLC | Anacortes | WA | — | ◇ UNVERIFIED |
| WBWa317935426 - B P West Coast Products LLC | Blaine | WA | — | ◇ UNVERIFIED |
| WTWa317936423 - Tesoro Refining & Marketing Company LLC | Anacortes | WA | — | ◇ UNVERIFIED |
| WSWa317938698 - S&s Petroleum INC | Yakima | WA | — | ◇ UNVERIFIED |
| WBWa317950185 - Bp West Coast Products LLC | Bellevue | WA | — | ◇ UNVERIFIED |
| W2Waste 2 Energy Env. | Casa Grande | AZ | — | ◇ UNVERIFIED |
| WRWestern Refinery | Jamestown | NM | — | ◇ UNVERIFIED |
| WRWestern Refining - Gallup Refinery | Gallup | NM | — | ◇ UNVERIFIED |
| WRWestern Refining Terminals LLC - Cottage Grove | Cottage Grove | MN | — | ◇ UNVERIFIED |
| WSWestern Slope Refining CO | Fruita | CO | — | ◇ UNVERIFIED |
| WGW G Tomko INC | Finleyville | PA | — | ◇ UNVERIFIED |
| WCWhitehead Construction Asphalt Plant | Pascagoula | MS | — | ◇ UNVERIFIED |
| WCWhitehead Construction Company Inc, Whitehead Asphalt Plant | Pascagoula | MS | — | ◇ UNVERIFIED |
| WRWilco Refining LLC | Albany | KY | — | ◇ UNVERIFIED |
| WFWingate Fractionator | Rehoboth | NM | — | ◇ UNVERIFIED |
| WIWolco, INC. | Saint Louis | MO | — | ◇ UNVERIFIED |
| WEWorld Energy Elk Grove LLC | Elk Grove | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CO #2 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Company #68 | Huntington Beach | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CORP | Bakersfield | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Co, Ss# 17 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil CO Ss# 63 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #1 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #106 | Rancho Mirage | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing CO #13 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Company | Fullerton | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Company #42 | Newport Beach | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Co., Ss #60 | Los Angeles | CA | — | ◇ UNVERIFIED |
| WOWorld Oil Marketing Co, Station #65 | West Hollywood | CA | — | ◇ UNVERIFIED |
| YCYellowstone Cody Refinery | Cody | WY | — | ◇ UNVERIFIED |
| ZEZenith Energy Terminals Holdings LLC - Portland Terminal | Portland | OR | — | ◇ UNVERIFIED |