| Case Number | Case Title | Open Date | Closed Date |
| 07-0590-GA-ALT | DUKE ENERGY OHIO INC | 05/15/2007 | 10/29/2015 |
| 07-0830-GA-ALT | EAST OHIO GAS COMPANY DBA DOMINION EAST OHIO | 07/20/2007 | 03/21/2011 |
| 07-1081-GA-ALT | VECTREN ENERGY DELIVERY | 09/28/2007 | 08/17/2023 |
| 08-0940-GA-ALT | EASTERN NATURAL GAS COMPANY | 08/01/2008 | 03/18/2020 |
| 08-0941-GA-ALT | PIKE NATURAL GAS COMPANY | 08/01/2008 | 03/18/2020 |
| 11-2401-GA-ALT | IN THE MATTER OF THE APPLICATION OF THE EAST OHIO GAS COMPANY DBA DOMINION EAST OHIO FOR APPROVAL TO MODIFY AND FURTHER ACCELERATE ITS PIPELINE INFRAS | 04/11/2011 | 08/13/2015 |
| 11-5515-GA-ALT | COLUMBIA GAS OF OHIO INC | 12/09/2011 | 03/01/2021 |
| 12-1687-GA-ALT | DUKE ENERGY OHIO INC | 06/07/2012 | 08/29/2023 |
| 13-1571-GA-ALT | VECTREN ENERGY DELIVERY OF OHIO INC | 07/02/2013 | 03/01/2021 |
| 14-1622-GA-ALT | Duke Energy Ohio, Inc. | 09/17/2014 | 11/14/2017 |
| 15-0362-GA-ALT | THE EAST OHIO GAS COMPANY D/B/A DOMINION EAST OHIO | 02/19/2015 | 02/15/2017 |
| 16-2422-GA-ALT | Columbia Gas of Ohio, Inc | 12/27/2016 | 10/22/2018 |
| 17-0594-GA-ALT | SUBURBAN NATURAL GAS COMPANY | 04/25/2017 | 12/15/2017 |
| 17-2202-GA-ALT | Columbia Gas of Ohio Inc | 10/27/2017 | 09/01/2023 |
| 17-2484-GA-ALT | Duke Energy Ohio | 12/12/2017 | 09/01/2023 |
| 18-0049-GA-ALT | VECTREN ENERGY DELIVERY OF OHIO INC | 01/03/2018 | 09/01/2023 |
| 18-0299-GA-ALT | VECTREN ENERGY DELIVERY OF OHIO, INC. | 02/21/2018 | 09/01/2023 |
| 18-1722-GA-ALT | MATTER OF THE APPLICATION OF NORTHEAST OHIO NATURAL GAS CORP. | 11/27/2018 | 09/05/2023 |
| 19-0791-GA-ALT | In the Matter of the Application of Duke Energy Ohio, Inc. for Approval of an Alternative Form of Regulation | 04/01/2019 | 09/05/2023 |
| 19-1354-GA-ALT | Ohio Gas Company | 07/01/2019 | 09/05/2023 |
| 20-1427-GA-ALT | In the Matter of the Application of Northeast Ohio Natural Gas Corp. for Approval of Alternative Regulation | 08/26/2020 | 09/12/2023 |
| 21-0124-GA-ALT | SUBURBAN NATURAL GAS COMPANY | 02/11/2021 | 05/01/2023 |