| AAAdm Artco | Camanche | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BMBituminous Materials and Supply, LP | Des Moines | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| BSBlacktop Service Co-plant #5-allison | Allison | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| CCCessford Construction Co-plant 2 | Le Grand | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| COCity of Davenport Public Works Center | Davenport | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| DMDes Moines Asphalt & Paving CO - North Plant | Johnston | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| FHFlint Hills Resources Lp, Algona, Ia | Algona | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| GAGrimes Asphalt & Paving | Des Moines | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| ILInroads, LLC | Elkhart | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| ILInroads, LLC | Des Moines | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| NANorris Asphalt Paving Co-plant 450 | Harvey | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| OMOmg Midwest Dba Cessford Construction CO | Burlington | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| OMOmg Midwest INC | Johnston | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RGRed Giant Oil Company | Council Bluffs | IA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| RGRiverstone Group, INC - Bettendorf | Bettendorf | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RURs Used Oil Services INC - Former Site of | Des Moines | IA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| SCSta-bilt Construction CO - Harlan | Harlan | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| WQWendling Quarries, INC - Atalissa / Moscow Plant | Moscow | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| AWAqua Waste Water Eaters | Richland | IA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| BCBituma Corporation | Marquette | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| ILInroads, LLC | Des Moines | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MIManatt's, INC. | Ames | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| MCMathy Construction CO Plant 4 | Anamosa | IA | Petroleum and Coal Products Manufacturing324121 | — | ◇ UNVERIFIED |
| RIRock Island Lubricants Company | Eldridge | IA | Petroleum and Coal Products Manufacturing324191 | — | ◇ UNVERIFIED |
| SCSullivan Coatings | Newton | IA | Petroleum and Coal Products Manufacturing324122 | — | ◇ UNVERIFIED |
| WLW2fuel LLC | Keokuk | IA | Petroleum and Coal Products Manufacturing324110 | — | ◇ UNVERIFIED |
