| Lime Creek | Oil | Interstate Power and Light Co | 90.2 MW |
| Ames GT | Oil | City of Ames - (IA) | 78.7 MW |
| Indianola | Oil | Indianola Municipal Utilities | 40.9 MW |
| Pella Peaking | Oil | City of Pella - (IA) | 28 MW |
| Waverly Municipal Electric North Plant | Oil | Waverly Municipal Elec Utility | 25.1 MW |
| Mt Pleasant | Oil | City of Mt Pleasant - (IA) | 24 MW |
| Spencer Gas Turbine | Oil | City of Spencer - (IA) | 23.8 MW |
| Forest City Light Plant | Oil | City of Forest City- (IA) | 22 MW |
| Amana Society Service Company | Oil | Amana Society Service Co | 21.6 MW |
| Webster City | Oil | City of Webster City - (IA) | 21.3 MW |
| Shenandoah | Oil | MidAmerican Energy Co | 20 MW |
| Waterloo Lundquist | Oil | MidAmerican Energy Co | 18 MW |
| Lake Mills | Oil | City of Lake Mills | 17.7 MW |
| Winterset | Oil | City of Winterset - (IA) | 17.6 MW |
| West Liberty | Oil | City of West Liberty - (IA) | 16.5 MW |
| Algona | Oil | City of Algona - (IA) | 16.1 MW |
| Alliant SBD 9106 Rockwell CR | Oil | Industrial Energy Applications Inc | 16 MW |
| Knoxville Industrial | Oil | MidAmerican Energy Co | 16 MW |
| NCAH Central Utility Plant | Oil | National Centers for Animal Health | 14.1 MW |
| Story City | Oil | City of Story City - (IA) | 13.9 MW |
| South Plant (IA) | Oil | Waverly Municipal Elec Utility | 12 MW |
| Alliant SBD 9107 JBS USA | Oil | Industrial Energy Applications Inc | 11.4 MW |
| Lamoni Municipal Utilities | Oil | City of Lamoni - (IA) | 10.5 MW |
| Bellevue | Oil | City of Bellevue - (IA) | 9.8 MW |
| Montezuma | Oil | City of Montezuma - (IA) | 9.8 MW |
| Tipton | Oil | City of Tipton - (IA) | 9.3 MW |
| Wilton | Oil | City of Wilton - (IA) | 9.2 MW |
| Laurens | Oil | City of Laurens - (IA) | 9.1 MW |
| John Deere Dubuque Works | Oil | John Deere Dubuque Works | 9 MW |
| Grundy Center City Light Plant | Oil | Grundy Center Mun Light & Power | 8.7 MW |
| Maquoketa 2 | Oil | City of Maquoketa - (IA) | 8 MW |
| NLMU Diesel | Oil | New London Municipal Utilities | 8 MW |
| North Generation Plant | Oil | City of Greenfield - (IA) | 8 MW |
| Manning | Oil | City of Manning | 7.9 MW |
| Cascade | Oil | Cascade Municipal Utilities | 7.2 MW |
| Corning | Oil | City of Corning - (IA) | 6.8 MW |
| West Bend | Oil | City of West Bend | 6.7 MW |
| Milford | Oil | City of Milford - (IA) | 6.5 MW |
| State Center | Oil | City of State Center - (IA) | 6.3 MW |
| Alliant SBD0201 Ingredion | Oil | Industrial Energy Applications Inc | 6.1 MW |
| Lenox | Oil | City of Lenox - (IA) | 6.1 MW |
| Farmers Electric Cooperative - Kalona | Oil | Farmers Electric Coop - (IA) | 6 MW |
| Alliant SBD 8602 Marion Sub | Oil | Industrial Energy Applications Inc | 5.6 MW |
| Alliant SBD 9203 Profol | Oil | American Profol Incorporated | 5.6 MW |
| Phoenix Investors, LLC | Oil | Industrial Energy Applications Inc | 5.4 MW |
| Coon Rapids II | Oil | City of Coon Rapids | 5.4 MW |
| La Porte | Oil | La Porte City Utilities | 5.4 MW |
| Sumner | Oil | City of Sumner - (IA) | 5.4 MW |
| Sibley One | Oil | City of Sibley - (IA) | 5.2 MW |
| Downtown Generation Plant | Oil | City of Greenfield - (IA) | 5 MW |
| Panora | Oil | City of Panora - (IA) | 4.5 MW |
| Durant | Oil | City of Durant - (IA) | 4.4 MW |
| Gilliam South | Oil | City of Stuart - (IA) | 4.3 MW |
| Bancroft | Oil | Bancroft Municipal Utilities | 4.2 MW |
| Alliant SBD 9403 Aegon DC | Oil | Industrial Energy Applications Inc | 4.1 MW |
| Hopkinton | Oil | City of Hopkinton - (IA) | 4.1 MW |
| Alta Municipal Utilities | Oil | City of Alta - (IA) | 4 MW |
| Lake Park | Oil | City of Lake Park - (IA) | 4 MW |
| Traer East | Oil | City of Traer - (IA) | 4 MW |
| Villisca Municipal Power Plant | Oil | City of Villisca - (IA) | 4 MW |
| West Diesel Generation Unit | Oil | City of Pocahontas - (IA) | 4 MW |
| Ogden | Oil | City of Ogden - (IA) | 3.9 MW |
| Alliant SBD 9205 A Y McDonald | Oil | Industrial Energy Applications Inc | 3.6 MW |
| South Strawberry | Oil | City of Strawberry Point | 3.6 MW |
| Alliant SBD 9301 Prairie Farms | Oil | Industrial Energy Applications Inc | 3.5 MW |
| Traer Main | Oil | City of Traer - (IA) | 3.5 MW |
| Harlan | Oil | Harlan Municipal Utilities - (IA) | 3.4 MW |
| Graettinger | Oil | City of Graettinger - (IA) | 3.1 MW |
| Anita | Oil | City of Anita - (IA) | 2.9 MW |
| Rockford | Oil | City of Rockford- (IA) | 2.9 MW |
| Stuart (IA) | Oil | City of Stuart - (IA) | 2.8 MW |
| Gowrie | Oil | Gowrie Municipal Utilities | 2.5 MW |
| Rock Rapids | Oil | Rock Rapids Municipal Utility | 2.5 MW |
| Brooklyn City North Plant | Oil | City of Brooklyn - (IA) | 2.3 MW |
| Brooklyn | Oil | City of Brooklyn - (IA) | 2.3 MW |
| Dike City Power Plant | Oil | City of Dike | 2.2 MW |
| Alliant SBD 9201 Norplex | Oil | Industrial Energy Applications Inc | 2.1 MW |
| Anderson Erickson | Oil | Anderson Erickson Dairy | 2 MW |
| Coggon | Oil | Coggon Municipal Light Plant | 2 MW |
| Primghar | Oil | City of Primghar - (IA) | 2 MW |
| Traer South | Oil | City of Traer - (IA) | 2 MW |
| Dayton (IA) | Oil | City of Dayton - (IA) | 1.8 MW |
| Earlville | Oil | City of Earlville - (IA) | 1.8 MW |
| Wapsie Valley Creamery Back Up Generator | Oil | Wapsie Valley Creamery | 1.8 MW |
| West Receiving | Oil | City of Denison - (IA) | 1.8 MW |
| Grand Junction | Oil | City of Grand Junction - (IA) | 1.7 MW |
| Alliant SBD 9206 Donaldson | Oil | Industrial Energy Applications Inc | 1.6 MW |
| McGregor | Oil | City of McGregor- (IA) | 1.5 MW |
| Sibley No Two | Oil | City of Sibley - (IA) | 1.1 MW |