Read the quantity before comparing prices
Identify whether the bill uses Ccf, Mcf, therms or another measure. Ccf represents one hundred cubic feet and Mcf one thousand cubic feet; therms measure energy rather than volume. A heat-content conversion is needed to move between volume and energy. Use the factor shown by the utility for the applicable period rather than treating all gas as having a universal exact energy content.
Find the supplier and commodity arrangement
Determine whether the account uses a default utility commodity arrangement, a competitive supplier or a transportation service. Review the supplier’s product description and quoted unit. A gas utility can continue delivery and meter functions when a separate supplier provides the commodity. If the bill is split, include both invoices in the budget rather than comparing only the smaller one.
Explain fixed fees and weather exposure
A customer or delivery charge can remain during low-use months. Heating-related consumption can rise when conditions are colder even if the supply rate is fixed. Check billed days, estimates, operating hours and equipment performance before attributing the increase to price. For an indexed product, identify both the published index and the contract’s basis or other adjustments.
Reconcile a quote with the bill
Convert quantities and rates to a common basis, list known fees and mark exclusions. Ask whether the quote includes balancing, transport or other applicable charges. A lower unit price with an additional monthly fee may not be lower at your usage. Keep the calculation separate from emergency service instructions; use the gas utility’s current safety directions for any suspected leak.
A practical example
Illustrative explanation, not a customer outcome.
At an explicitly assumed 1,000 Btu per cubic foot, 1 Mcf equals 10 Ccf and 10 therms. At 1,030 Btu per cubic foot, the same 1 Mcf equals 10.3 therms. Our converter lets you enter the bill’s heat-content assumption.
Put the review into practice
| Review step | What to record |
|---|---|
| Match units | Use the bill’s volume and heat-content basis. |
| Model seasonality | Keep monthly quantities instead of assuming flat heating use. |
| Read the product | Identify fixed components, index, basis and fees. |
| Keep safety separate | Follow the utility’s current emergency instructions. |
Questions worth asking
Is Mcf the same as MMBtu?
No. One measures volume and the other energy. Conversion needs heat content.
Do delivery charges disappear with a gas supplier?
No. Review the continuing utility delivery charges separately.
Continue the comparison
Sources and scope
Reviewed October 15, 2026. Follow the source’s own data period, effective dates and current terms. Examples are hypothetical unless expressly identified as a dated published result. A source is context, not a guarantee of eligibility or a product endorsement.