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How the Maine gas options differ
The Maine PUC describes bundled and transportation-only options for most commercial and industrial customers under each utility’s terms and conditions. A supplier registration does not ensure an offer is available.
Confirm the distribution company, metering requirements and incremental transportation costs. A supplier’s willingness to serve a small account is a commercial question.
Utility and commercial service map
This map covers the utility routes represented by our Maine 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 |
|---|---|---|
| Unitil | Maine commercial transportation-only service | Legal distribution company, commercial class and transportation metering requirements |
| Summit Natural Gas of Maine | Maine commercial transportation-only service | Legal distribution company, commercial class and transportation metering requirements |
Maine commercial transportation-only service — 2 represented gas companies
Represented companies: Unitil; Summit Natural Gas of Maine.
Maine PUC describes bundled and transportation-only choices for most commercial and industrial customers under each utility’s terms. The economics include any incremental metering and transportation costs. A registered supplier is not proof that it will quote this particular business or load.
Cost scope: Bundled utility cost versus supplier gas, transportation, metering and data fees. Operating question: Supplier willingness to serve, transition charges and return-to-bundled-service terms.
Maine Commercial. Summit Natural Gas of Maine: municipalities, commercial classes and tariff; Unitil: natural gas and electric service communities.
Territory and program exceptions to keep visible
Presque Isle does not appear on Unitil’s reviewed Maine gas town list. That omission is not proof that every premises lacks gas. Establish the actual fuel and distributor before asking for a pipeline-gas supplier quote; Presque Isle Electric & Gas Co-op is a Michigan utility, not evidence of service in Maine. Presque Isle source notes.
A practical Maine account decision
A metering or data-service cost can outweigh a small commodity difference. Include one-time conversion and recurring costs in the comparison, then ask how the account can return to bundled 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 Maine 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
Maine city evidence
Use the city guide for community-specific source notes. Exact meter eligibility still requires utility confirmation.
Sources and review notes
- Maine PUC commercial choice
- Summit Natural Gas of Maine: municipalities, commercial classes and tariff
- Unitil: natural gas and electric service communities
- 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.