| American Petroleum Institute - API Ohio | — | Jan-Apr13 |
| Christian B. Zeigler | American Petroleum Institute - API Ohio | — | May-Aug13 |
| Christina Polesovsky | American Petroleum Institute - API Ohio | — | Jan-Apr13 |
| Robert N Eshenbaugh, Jr | American Petroleum Institute - API Ohio | — | Jan-Apr13 |
| Attorney General's Office | — | Sep-Dec13 |
| Charles Willoughby | Attorney General's Office | — | Jan-Apr13 |
| Erica Wilson | Attorney General's Office | — | Jan-Apr13 |
| Kristin Strobel | Attorney General's Office | — | Jan-Apr13 |
| William O'Gorman | Attorney General's Office | — | Jan-Apr14 |
| Kevin R Schmidt | Chesapeake Energy | — | Jan-Apr14 |
| Matthew Hammond | Chesapeake Energy | — | Jan-Apr14 |
| Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr13 |
| Andrew Minton | Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr13 |
| Stephen Nielson | Chevron U.S.A. Inc. and its Affiliates | — | Sep-Dec14 |
| William L Byers, IV | Chevron U.S.A. Inc. and its Affiliates | — | Jan-Apr13 |
| Coalition of Ohio Regional Districts | — | Jan-Apr13 |
| Andrew Huffman | Coalition of Ohio Regional Districts | — | Jan-Apr13 |
| Brooke A Cheney | Coalition of Ohio Regional Districts | — | Jan-Apr13 |
| Kelly C O'Reilly | Coalition of Ohio Regional Districts | — | Jan-Apr13 |
| Matthew S Whitehead | Coalition of Ohio Regional Districts | — | Jan-Apr13 |
| Victor F Hipsley | Coalition of Ohio Regional Districts | — | Jan-Apr13 |
| County Commissioners' Association of Ohio | — | Jan-Apr13 |
| Joshua Hahn | County Commissioners' Association of Ohio | — | Jan-Apr13 |
| Larry L Long | County Commissioners' Association of Ohio | — | Jan-Apr13 |
| Melissa Bacon | Department of Health | — | Jan-Apr13 |
| Enterprise Products Company | — | Jan-Apr13 |
| Delbert Fore | Enterprise Products Company | — | Jan-Apr13 |
| Nathanael Jonhenry | Enterprise Products Company | — | Jan-Apr13 |
| Timothy J Cosgrove | Enterprise Products Company | — | Jan-Apr13 |
| Environmental Defense Fund, Incorporated | — | May-Aug13 |
| Gary E Smith, Jr. | Environmental Defense Fund, Incorporated | — | May-Aug13 |
| Josh Rubin | Environmental Defense Fund, Incorporated | — | May-Aug13 |
| Governor's Office | — | Jan-Apr13 |
| Benjamin Kanzeg | Governor's Office | — | Jan-Apr13 |
| Beth Hansen | Governor's Office | — | Jan-Apr13 |
| Brad Barger | Governor's Office | — | Jan-Apr13 |
| Craig Butler | Governor's Office | — | Jan-Apr13 |
| Elle Decot | Governor's Office | — | Jan-Apr14 |
| Eric Poklar | Governor's Office | — | May-Aug13 |
| Erik Yassenoff | Governor's Office | — | Jan-Apr13 |
| Jai Chabria | Governor's Office | — | Jan-Apr13 |
| James W. Sheppard, III | Governor's Office | — | Jan-Apr13 |
| Jeff Polesovsky | Governor's Office | — | Jan-Apr13 |
| Kimberly Kutschbach | Governor's Office | — | Jan-Apr13 |
| Madison Whalen | Governor's Office | — | Jan-Apr14 |
| Matt Carle | Governor's Office | — | Jan-Apr13 |
| Megan Fitzmartin | Governor's Office | — | Sep-Dec13 |
| Scott Blake | Governor's Office | — | Jan-Apr13 |
| Wayne Struble | Governor's Office | — | Jan-Apr13 |
| Eric Poklar | Governor's Office of Health Transformation | — | May-Aug13 |
| Hess Corporation | — | Jan-Apr13 |
| Jeffrey T DeLeone | Hess Corporation | — | Jan-Apr13 |
| Matthew Forney | Hess Corporation | — | Jan-Apr13 |
| League of Women Voters of Ohio | — | May-Aug13 |
| Carrie L Davis | League of Women Voters of Ohio | — | May-Aug13 |
| Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr13 |
| Courtney Saunders | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | May-Aug13 |
| Daniel P Leite | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr13 |
| Kurt L Leib | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr13 |
| William J Schedel, Jr | Marathon Petroleum Corporation & its Subsidiaries and Affiliates | — | Jan-Apr13 |
| MarkWest Energy Partners, L.P. | — | Jan-Apr13 |
| Jeffrey T DeLeone | MarkWest Energy Partners, L.P. | — | Jan-Apr13 |
| Matthew Forney | MarkWest Energy Partners, L.P. | — | Jan-Apr13 |
| National Waste & Recycling Association | — | May-Aug13 |
| Thomas P Pappas | National Waste & Recycling Association | — | May-Aug13 |
| Willa J Ebersole | National Waste & Recycling Association | — | May-Aug13 |
| Ohio Chamber of Commerce | — | May-Aug13 |
| Charlotte B Hickcox | Ohio Chamber of Commerce | — | May-Aug13 |
| Ohio Department of Natural Resources | — | Jan-Apr13 |
| Andrew Ware | Ohio Department of Natural Resources | — | Jan-Apr13 |
| Ben Pendery | Ohio Department of Natural Resources | — | Jan-Apr13 |
| Brittney Colvin | Ohio Department of Natural Resources | — | Jan-Apr13 |
| Brock Miskimen | Ohio Department of Natural Resources | — | Sep-Dec13 |
| Erik Mikkelson | Ohio Department of Natural Resources | — | May-Aug13 |
| Frederick Shimp | Ohio Department of Natural Resources | — | Jan-Apr13 |
| Gary Obermiller | Ohio Department of Natural Resources | — | May-Aug14 |
| Glen Cobb | Ohio Department of Natural Resources | — | Jan-Apr13 |
| James Zehringer | Ohio Department of Natural Resources | — | Jan-Apr13 |
| Karl R. Gebhardt | Ohio Department of Natural Resources | — | Jan-Apr13 |
| Michael Williams | Ohio Department of Natural Resources | — | May-Aug13 |
| Robert Boyles | Ohio Department of Natural Resources | — | Jan-Apr14 |
| Thomas Johnston | Ohio Department of Natural Resources | — | Sep-Dec14 |
| Tim Biggam | Ohio Department of Natural Resources | — | Sep-Dec14 |
| William Damschroder | Ohio Department of Natural Resources | — | Jan-Apr13 |
| Ohio Environmental Council | — | Jan-Apr13 |
| Jack Shaner | Ohio Environmental Council | — | Jan-Apr13 |
| Kristy Meyer | Ohio Environmental Council | — | Jan-Apr13 |
| Trent Dougherty | Ohio Environmental Council | — | Jan-Apr13 |
| Ohio Environmental Protection Agency | — | Jan-Apr13 |
| Annie van Blaricom | Ohio Environmental Protection Agency | — | Jan-Apr13 |
| Laura H. Factor | Ohio Environmental Protection Agency | — | Jan-Apr13 |
| Scott Nally | Ohio Environmental Protection Agency | — | Jan-Apr13 |
| Tracy S Freeman | Ohio Environmental Protection Agency | — | Jan-Apr13 |
| Ohio League of Conservation Voters | — | May-Aug13 |
| Aaron M Ockerman | Ohio League of Conservation Voters | — | Jan-Apr13 |
| Donald Hollister | Ohio League of Conservation Voters | — | May-Aug13 |
| Ohio Oil Gathering Corporation | — | Jan-Apr13 |
| Jeffrey T DeLeone | Ohio Oil Gathering Corporation | — | Jan-Apr13 |
| Matthew Forney | Ohio Oil Gathering Corporation | — | Jan-Apr13 |
| Ohio Oil and Gas Association | — | Jan-Apr13 |
| Brian Hickman | Ohio Oil and Gas Association | — | Jan-Apr13 |
| Penny Seipel | Ohio Oil and Gas Association | — | Jan-Apr13 |
| Thomas E. Stewart | Ohio Oil and Gas Association | — | Jan-Apr13 |
| Ohio Petroleum Marketers & Convenience Store Association | — | Sep-Dec14 |
| Ohio Township Association | — | Jan-Apr13 |
| Andrew Huffman | Ohio Township Association | — | Jan-Apr13 |
| Brooke A Cheney | Ohio Township Association | — | Jan-Apr13 |
| Heidi M Fought | Ohio Township Association | — | Jan-Apr13 |
| Kelly C O'Reilly | Ohio Township Association | — | Jan-Apr13 |
| Matthew DeTemple | Ohio Township Association | — | Jan-Apr13 |
| Matthew S Whitehead | Ohio Township Association | — | Jan-Apr13 |
| Victor F Hipsley | Ohio Township Association | — | Jan-Apr13 |
| Sierra Club - Ohio Chapter | — | Jan-Apr13 |
| Jed Thorp | Sierra Club - Ohio Chapter | — | Jan-Apr13 |
| Waste Management of Ohio, Inc. | — | Jan-Apr13 |
| Kathryn A Trent | Waste Management of Ohio, Inc. | — | Jan-Apr13 |