| Case Number | Case Title | Open Date | Closed Date |
| 09-0587-GA-PIP | NORTHEAST OHIO NATURAL GAS CORPORATION | 07/13/2009 | |
| 09-0918-GA-PIP | DUKE ENERGY OHIO INC | 10/07/2009 | |
| 13-1208-GA-PIP | THE EAST OHIO GAS COMPANY DBA DOMINION EAST OHIO | 05/17/2013 | |
| 13-1236-GA-PIP | OHIO GAS COMPANY | 05/22/2013 | |
| 13-1285-GA-PIP | VECTREN ENERGY DELIVERY OF OHIO INC | 05/30/2013 | |
| 13-1290-GA-PIP | EASTERN NATURAL GAS | 05/31/2013 | |
| 13-1291-GA-PIP | PIKE NATURAL GAS | 05/31/2013 | |
| 16-0490-GA-PIP | Ohio Valley Gas Corporation | 06/14/2016 | |
| 21-0410-GA-PIP | GLENWOOD ENERGY OF OXFORD | 01/13/2021 | |
| 21-0411-GA-PIP | OHIO GAS COMPANY | 01/13/2021 | |
| 21-0418-GA-PIP | DUKE ENERGY OHIO | 01/13/2021 | |
| 21-0419-GA-PIP | DOMINION ENERGY OHIO | 01/12/2021 | |
| 21-0420-GA-PIP | VECTREN ENERGY DELIVERY OF OHIO | 01/13/2021 | |
| 21-0421-GA-PIP | COLUMBIA GAS OF OHIO | 01/12/2021 | |
| 22-0409-GA-PIP | Northeast Ohio Natural Gas Corp. | 01/03/2022 | |
| 22-0411-GA-PIP | Ohio Gas Company | 01/03/2022 | |
| 22-0416-GA-PIP | Suburban Natural Gas Company | 01/03/2022 | |
| 22-0418-GA-PIP | Duke Energy Ohio, Inc. | 01/03/2022 | |
| 22-0419-GA-PIP | The East Ohio Gas Company d/b/a Dominion Energy Ohio | 01/04/2022 | |
| 22-0420-GA-PIP | Vectren Energy Delivery of Ohio, Inc. d/b/a CenterPoint Energy Ohio | 01/03/2022 | |
| 22-0421-GA-PIP | Columbia Gas of Ohio, Inc. | 01/03/2022 | |
| 23-0032-GA-PIP | OHIO VALLEY GAS CORPORATION | 01/11/2023 | |
| 23-0407-GA-PIP | EASTERN NATURAL GAS COMPANY | 01/03/2023 | |
| 23-0409-GA-PIP | NORTHEAST OHIO NATURAL GAS CORP | 01/03/2023 | |
| 23-0410-GA-PIP | GLENWOOD ENERGY OF OXFORD INC | 01/03/2023 | |
| 23-0411-GA-PIP | OHIO GAS COMPANY | 01/03/2023 | |
| 23-0414-GA-PIP | PIKE NATURAL GAS COMPANY | 01/03/2023 | |
| 23-0416-GA-PIP | SUBURBAN NATURAL GAS COMPANY | 01/03/2023 | |
| 23-0418-GA-PIP | DUKE ENERGY OHIO INC | 01/03/2023 | |
| 23-0419-GA-PIP | THE EAST OHIO GAS COMPANY d/b/a DOMINION ENERGY OHIO | 01/03/2023 | |
| 23-0420-GA-PIP | VECTREN ENERGY DELIVERY OF OHIO INC d/b/a CENTERPOINT ENERGY OHIO | 01/03/2023 | |
| 23-0421-GA-PIP | COLUMBIA GAS OF OHIO INC | 01/03/2023 | |