Indiana Natural Gas Corporation provides service in 7 southern Indiana counties: Bartholomew, Brown, Crawford, Dubois, Lawrence, Harrison, and Orange.
To compare average natural gas bills, see the IURC's monthly residential surveys. Key components of a natural gas bill include gas costs and base rates.
2023-24 Rate Case
Indiana Natural Gas Corporation requested a rate increase under Cause No. 45889.
The IURC approved a settlement agreement between the OUCC and the utility in a Jan. 17, 2024 final order.
The OUCC filed supporting testimony regarding the settlement agreement on Sept. 29, 2023.
The utility filed its petition and the following testimony on May 17, 2023:
The OUCC issued a June 29, 2023 news release to invite written comments through Aug. 23. 2023.
Gas Costs
Natural gas utilities buy gas for their customers in a competitive wholesale market. Indiana law allows utilities to adjust rates every three months to recover changes in those costs, which can go up or down. These costs comprise a significant portion of a residential bill and are recovered through the Gas Cost Adjustment (GCA) process.
Indiana Natural Gas Corp.’s GCA rate adjustments are approved every three months under IURC Cause Number 37418. Orders approving rate adjustments include specific bill impacts and are available from the electronic files on the IURC website.
To search:
- Go to https://iurc.portal.in.gov/
- Click the “Start” button under “Search for a Docketed Case”
- Enter the Cause Number noted above
- The most recent GCA case will appear first
Base Rates
Base rates cover a utility's operational, maintenance, and capital costs. Investor-owned utilities are allowed to earn a return on base rates.
The IURC approved Indiana Natural Gas Corporation's base rates in 2014.
Additional OUCC Resources
6-10-2025