On this page
How the Indiana gas options differ
The OUCC describes NIPSCO Choice as voluntary and warns that enrolling may or may not save money. NIPSCO continues to charge for transportation and distribution.
Verify that this is a NIPSCO gas account and confirm its eligible class. Other Indiana utilities require their own program and tariff review.
Utility and commercial service map
This map covers the utility routes represented by our Indiana city guides. It is not an exhaustive statewide utility or supplier roster. A community or county listing does not confirm an individual service address.
| Gas service company | Review route | Classification to establish |
|---|---|---|
| CenterPoint Energy Indiana North | CenterPoint Indiana North transportation | Indiana North sales or transportation schedule and applicable annual/daily-use category |
| NIPSCO | NIPSCO Choice versus utility supply | NIPSCO gas class, zone and Choice eligibility |
| CenterPoint Energy Indiana South | CenterPoint Energy Indiana South commercial service | Indiana South commercial sales or qualified transportation schedule |
| Citizens Gas | Citizens Gas delivery agreement | Citizens Gas tariff class and eligibility for the requested delivery service |
CenterPoint Energy Indiana North: CenterPoint Indiana North transportation
Indiana North’s gas tariff identifies Indiana Gas Company as the operating company and lists its own service locations and rate schedules. Keep it separate from CenterPoint Indiana South, Ohio and Houston: the common brand does not make the transportation eligibility rules interchangeable.
Cost scope: Customer-facility charges, supply component and transport/pooling charges. Operating question: Pool operator, agency agreement, usage qualification and delivery start.
Centerpoint In North Tariff Alternate. Centerpoint In North Tariff Alternate.
NIPSCO: NIPSCO Choice versus utility supply
The Indiana OUCC describes NIPSCO Choice as voluntary and warns that a customer may or may not save money. NIPSCO still provides transportation and distribution. Its gas tariff lists community zones, so the gas account and applicable zone matter even where electricity comes from another company.
Cost scope: Utility gas-cost adjustment versus supplier supply charges and fees. Operating question: Contract exit charges, switching requirements and return terms.
Program Indiana. NIPSCO tariff: gas communities, counties and service zones.
CenterPoint Energy Indiana South: CenterPoint Energy Indiana South commercial service
Indiana South’s tariff identifies Southern Indiana Gas and Electric Company and its own sales, school/government and volume-based transportation schedules. These differ from Indiana North. Confirm annual and maximum-day usage before treating a large-volume transportation offer as suitable for an Evansville business.
Cost scope: Sales gas cost versus transportation, customer-facility and pooling charges. Operating question: Annual/daily-use qualification, pool operator and service agreement.
Citizens Gas: Citizens Gas delivery agreement
Citizens’ gas delivery agreement addresses utility delivery of gas received from the end-use customer or its third-party supplier at the city gate. It incorporates the service tariffs filed with the IURC. A delivery agreement and the supplier contract cover different obligations.
Cost scope: Utility gas delivery and administrative charges versus third-party gas supply. Operating question: Executed delivery agreement, supplier responsibility and utility acceptance.
Territory and program exceptions to keep visible
NIPSCO’s gas community index places Elkhart in Zone A. Retain the tariff zone when obtaining a transportation or pooling response; a county or mailing city alone is not the operating classification. Elkhart source notes.
A practical Indiana account decision
Compare supplier contract terms, return-to-utility conditions and any switch-related charges. Evaluate a price-protection product separately from ordinary utility gas cost adjustment service.
Record the utility’s legal service company, commercial rate code, billed unit and supply arrangement in one account row. Keep a separate row for each meter even where a supplier offers one master agreement. Normalize gas units before entering rates; compare constant supply prices and fees only after the available service and cost scope are clear.
Explore Indiana by decision
- How to check commercial gas supplier choice
- Five practical checks before expecting gas savings
- Compare commercial gas suppliers beyond the headline rate
- Match seasonal gas usage to contract pricing
- Worked commercial gas cost examples
- How to verify gas program and tariff changes
- Reduce gas use without confusing it with rate savings
- Build a gas budget without pretending to predict prices
Indiana city evidence
Use the city guide for community-specific source notes. Exact meter eligibility still requires utility confirmation.
Sources and review notes
- Centerpoint In North Tariff Alternate
- Indiana OUCC NIPSCO Choice
- NIPSCO tariff: gas communities, counties and service zones
- Centerpoint In South Tariff
- Citizens Gas Delivery
- Citizens Gas Territory
- EIA: natural gas customer choice and eligibility
- EIA: natural gas volume, heat content and energy units
Reviewed October 16, 2026. Program information can change. Confirm the effective utility tariff, supplier availability and written offer before proceeding. Examples and planning tools are educational; they are not executable quotes or verified customer results.