| Christopher Riley | Archer Daniels Midland Company | Opposing | GA88 |
| Jon Murphy | Casey's General Stores | Undecided | GA88 |
| Tom Cope | Casey's General Stores | Undecided | GA88 |
| Kellie Paschke | FUELIowa (PMCI) | Supporting | GA88 |
| Troy Skinner | FUELIowa (PMCI) | Supporting | GA88 |
| Doug Struyk | Iowa Biodiesel Board | Undecided | GA88 |
| Doug Struyk | Iowa Biodiesel Board | Opposing | GA88 |
| Jennifer Dorman | Iowa Biodiesel Board | Undecided | GA88 |
| Jennifer Dorman | Iowa Biodiesel Board | Opposing | GA88 |
| Jim Carney | Iowa Biodiesel Board | Undecided | GA88 |
| Jim Carney | Iowa Biodiesel Board | Opposing | GA88 |
| Maison Bleam | Iowa Department of Agriculture & Land Stewardship | Undecided | GA88 |
| Bobby Martens | Iowa Institute for Cooperatives | Undecided | GA88 |
| Katie Hall | Iowa Institute for Cooperatives | Undecided | GA88 |
| Mike St. Clair | Iowa Institute for Cooperatives | Undecided | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Opposing | GA88 |
| Mike Heller | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Nathan Hohnstein | Iowa Renewable Fuels Association (IRF) | Opposing | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Opposing | GA88 |
| Paula Feltner | Iowa Renewable Fuels Association (IRF) | Undecided | GA88 |
| Doug Struyk | Iowa Soybean Association | Undecided | GA88 |
| Doug Struyk | Iowa Soybean Association | Opposing | GA88 |
| Jennifer Dorman | Iowa Soybean Association | Undecided | GA88 |
| Jennifer Dorman | Iowa Soybean Association | Opposing | GA88 |
| Jim Carney | Iowa Soybean Association | Undecided | GA88 |
| Jim Carney | Iowa Soybean Association | Opposing | GA88 |
| Jake Ketzner | KWIK Trip, Inc. | Undecided | GA88 |
| Larry Blixt | KWIK Trip, Inc. | Undecided | GA88 |
| Matt McKinney | Kum and Go, L.C. | Undecided | GA88 |
| RG Schwarm | Kum and Go, L.C. | Undecided | GA88 |
| Christopher Rants | Magellan Midstream Partners | Undecided | GA88 |
| John Cacciatore | Magellan Midstream Partners | Undecided | GA88 |
| Justin Hupfer | Magellan Midstream Partners | Undecided | GA88 |
| Kate Walton | POET, LLC | Opposing | GA88 |
| Kate Walton | POET, LLC | Undecided | GA88 |
| Matt Eide | POET, LLC | Opposing | GA88 |
| Matt Eide | POET, LLC | Undecided | GA88 |
| Mike Heller | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA88 |
| Paula Feltner | Petroleum Marketers Management Insurance Company (PMMIC) | Undecided | GA88 |
| Kent Hartwig | Renewable Energy Group (REG) | Undecided | GA88 |
| Craig Schoenfeld | Valero Energy Corporation | Undecided | GA88 |