| David Scott | American Petroleum Institute | Undecided | GA86 |
| Drew Klein | Americans For Prosperity | Undecided | GA86 |
| Susan Walter | Black Hills Energy | Undecided | GA86 |
| James Piazza, Jr. | International Union of Operating Engineers-Local 234 | Undecided | GA86 |
| Brian Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Gary Nims | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Marty Ryan | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Peggy Aguilar | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Rita Carter | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Sheila Corsbie | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Stephanie Fawkes-Lee | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Walden Paige | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| William Steward | Iowa Annual Conference of United Methodist Church | Supporting | GA86 |
| Linda Kinman | Iowa Association of Water Agencies | Undecided | GA86 |
| Neila Seaman | Iowa Chapter of Sierra Club | Supporting | GA86 |
| Jess Mazour | Iowa Citizens for Community Improvement Action Fund | Supporting | GA86 |
| Jim Obradovich | Iowa Environmental Council | Supporting | GA86 |
| Eric Bradley | Iowa Environmental Health Association | Supporting | GA86 |
| Angela Davis | Iowa Farmland, LLC | Undecided | GA86 |
| Bill Wimmer | Iowa Farmland, LLC | Undecided | GA86 |
| Charlie Wishman | Iowa Federation of Labor, AFL-CIO | Undecided | GA86 |
| Susan Guy | Iowa Interfaith Power & Light | Supporting | GA86 |
| Brad Epperly | Iowa Propane Gas Association | Undecided | GA86 |
| Paula Dierenfeld | Iowa Propane Gas Association | Undecided | GA86 |
| Scott Sundstrom | Iowa Propane Gas Association | Undecided | GA86 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA86 |
| tom fey | Iowa State Building and Construction Trades Council | Opposing | GA86 |
| Tom Cope | Koch Companies Public Sector, LLC and Affiliates | Undecided | GA86 |
| Erich Schmidt | Laborers International Union of North America | Undecided | GA86 |
| John Pederson | Missouri River Energy Services | Undecided | GA86 |
| Kelly Nuckolls | Missouri River Energy Services | Undecided | GA86 |
| Matt Eide | Missouri River Energy Services | Undecided | GA86 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA86 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA86 |
| Mark Cooper | South Central Iowa Federation of Labor AFL-CIO | Undecided | GA86 |