| American Petroleum Institute - API Ohio | — | Jan-Apr17 |
| Christian B. Zeigler | American Petroleum Institute - API Ohio | — | Jan-Apr17 |
| Christina Polesovsky | American Petroleum Institute - API Ohio | — | Jan-Apr17 |
| Christopher N Slagle | American Petroleum Institute - API Ohio | — | Jan-Apr17 |
| Gregory J Lestini | American Petroleum Institute - API Ohio | — | Jan-Apr17 |
| Kurtis A Tunnell | American Petroleum Institute - API Ohio | — | Jan-Apr17 |
| Matt Koppitch | American Petroleum Institute - API Ohio | — | May-Aug17 |
| Antero Resources | — | Sep-Dec17 |
| Jim Samuel | Antero Resources | — | Sep-Dec17 |
| Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr17 |
| Andrew Minton | Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr17 |
| Greg Bennett | Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr17 |
| Stephen Nielson | Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr17 |
| William L Byers, IV | Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr17 |
| City of Dayton | — | Sep-Dec18 |
| Ductile Iron Pipe Research Association | — | Jan-Apr17 |
| Andrew Minton | Ductile Iron Pipe Research Association | — | Jan-Apr17 |
| Greg Bennett | Ductile Iron Pipe Research Association | — | Jan-Apr17 |
| Jason Mauk | Ductile Iron Pipe Research Association | — | Jan-Apr18 |
| William L Byers, IV | Ductile Iron Pipe Research Association | — | Jan-Apr17 |
| Equinor USA Onshore Properties Inc. | — | Jan-Apr17 |
| Andrew Minton | Equinor USA Onshore Properties Inc. | — | Jan-Apr17 |
| Greg Bennett | Equinor USA Onshore Properties Inc. | — | Jan-Apr17 |
| Stephen Nielson | Equinor USA Onshore Properties Inc. | — | Jan-Apr17 |
| William L Byers, IV | Equinor USA Onshore Properties Inc. | — | Jan-Apr17 |
| Exxon Mobil Corporation | — | Jan-Apr17 |
| Courtney Saunders | Exxon Mobil Corporation | — | Jan-Apr17 |
| Daniel P Leite | Exxon Mobil Corporation | — | Jan-Apr17 |
| Kurt L Leib | Exxon Mobil Corporation | — | Jan-Apr17 |
| Robert N Eshenbaugh, Jr | Exxon Mobil Corporation | — | Jan-Apr17 |
| Governor's Office | — | Jan-Apr17 |
| Beth Hansen | Governor's Office | — | Jan-Apr17 |
| Dawn Larzelere | Governor's Office | — | Jan-Apr17 |
| Merle Madrid | Governor's Office | — | Jan-Apr17 |
| Michael Fraizer | Governor's Office | — | Jan-Apr17 |
| Tim Biggam | Governor's Office | — | Sep-Dec17 |
| Wayne Struble | Governor's Office | — | Jan-Apr17 |
| Hess Corporation | — | Jan-Apr17 |
| Jeffrey T DeLeone | Hess Corporation | — | Jan-Apr17 |
| Matthew Forney | Hess Corporation | — | Jan-Apr17 |
| Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr17 |
| Courtney Saunders | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr17 |
| Daniel P Leite | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr17 |
| David Blatnik | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr17 |
| Kurt L Leib | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr17 |
| Robert N Eshenbaugh, Jr | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr17 |
| Mountaineer NGL Storage | — | Jan-Apr17 |
| Christopher N Slagle | Mountaineer NGL Storage | — | Jan-Apr17 |
| Gregory J Lestini | Mountaineer NGL Storage | — | Jan-Apr17 |
| Ohio Chamber of Commerce | — | Jan-Apr17 |
| Zachary Frymier | Ohio Chamber of Commerce | — | Jan-Apr17 |
| Ohio Department of Natural Resources | — | Jan-Apr17 |
| Andrew Ware | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Bethany McCorkle | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Bradley Bales | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Brock Miskimen | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Frederick Shimp | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Gary Obermiller | Ohio Department of Natural Resources | — | Jan-Apr17 |
| James Zehringer | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Katie Hegarty | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Robert Boyles | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Ryan Frazee | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Thomas Johnston | Ohio Department of Natural Resources | — | Jan-Apr17 |
| Jeffrey T DeLeone | Ohio Oil Gathering Corporation | — | Jan-Apr17 |
| Matthew Forney | Ohio Oil Gathering Corporation | — | Jan-Apr17 |
| Ohio Oil and Gas Association | — | Jan-Apr17 |
| Brian Hickman | Ohio Oil and Gas Association | — | Jan-Apr17 |
| Jeffrey T DeLeone | Ohio Oil and Gas Association | — | Jan-Apr17 |
| Matthew Forney | Ohio Oil and Gas Association | — | Jan-Apr17 |
| Penny Seipel | Ohio Oil and Gas Association | — | Jan-Apr17 |
| Shawn Bennett | Ohio Oil and Gas Association | — | Jan-Apr17 |
| Waste Management of Ohio, Inc. | — | Jan-Apr17 |
| Kathryn A Trent | Waste Management of Ohio, Inc. | — | Jan-Apr17 |