Commercial vs Residential Propane Price Per Gallon
Commercial accounts pay less per gallon than residential walk-in customers. This page covers the size of the discount, why it exists, the contract structures, and the data sources for each segment.
Why commercial pays less
The commercial discount is not goodwill. It is a direct translation of three operational facts. First, volume. A typical commercial account (restaurant, light manufacturing, school district, small institutional kitchen) consumes between 1,500 and 8,000 gallons per year, against a residential heating customer at 400 to 1,200 gallons. The dealer's fixed cost per customer (regulator service, leak check, account administration, billing, emergency call coverage) spreads across many more gallons for a commercial account, so the per-gallon recovery requirement drops. Second, route economics. A delivery to a commercial site is typically a single large fill (2,000 to 4,000 gallons in one stop) against a residential partial fill of 400 to 800 gallons. The bobtail truck cost per gallon delivered is meaningfully lower for the commercial stop. Third, contract structure. Commercial accounts are usually under signed supply contracts that lock in a margin formula (Mont Belvieu plus an agreed differential, or a fixed-price-period), eliminating the dealer's pricing risk premium that walk-in residential customers implicitly pay.
The combined effect is that for the same delivery date and the same propane out of the same bobtail, a commercial account on a multi-year contract might pay around $2.30 per gallon while the will-call residential customer down the road pays $2.67. The dealer is not discriminating; the dealer is recovering different fixed and risk costs from different customer classes. The largest industrial accounts (cement plants running propane peak shaving, large agricultural crop-drying operations, propane autogas fleet refueling) can negotiate even further down, sometimes within a dime of the residential-supplier wholesale benchmark.
The EIA series for each segment
The U.S. Energy Information Administration publishes weekly residential propane prices (W_EPLLPA_PRS_NUS_DPG) and weekly residential-supplier wholesale prices (W_EPLLPA_PWR_NUS_DPG) during the heating season. EIA does not publish a separate weekly commercial propane price series. Commercial pricing is estimated from NPGA (National Propane Gas Association) dealer surveys and from individual state propane association benchmarks. The estimated range on this page is built from those sources plus published commercial contract examples (school district procurement filings are a useful public source).
For natural gas, by contrast, the EIA publishes explicit commercial and industrial weekly prices alongside residential. The reason propane lacks this segmentation publicly is the fragmentation of the retail propane market: roughly 3,500 to 4,000 retail propane dealers nationally, against far fewer natural gas utilities, makes a publishable commercial average harder to construct.
Contract structures used in commercial propane
Three contract structures dominate commercial propane supply, each with different price implications for the buyer.
Cost-plus contracts
The commercial account pays Mont Belvieu (or Conway, or a named rack posting) on the day of delivery plus an agreed differential. The differential typically runs 60 to 120 cents per gallon depending on volume, delivery distance, and contract length. The buyer carries all the price risk: if Mont Belvieu rallies, the bill rises with it. The seller carries no price risk on the propane itself, only on the delivery operation. This is the most common structure for medium-volume commercial accounts (3,000 to 20,000 gallons per year).
Fixed-price contracts
The commercial account locks in a per-gallon price for a defined volume over a defined period, typically the heating season. The dealer offsets the price exposure with forward purchases at the rack. The buyer pays a small premium (5 to 15 cents per gallon over a likely cost-plus equivalent) for the price certainty. This structure is favoured by buyers who need budget predictability (school districts, municipal facilities, restaurants on tight margins).
Cap contracts
A hybrid: the buyer pays the current market price up to a ceiling, beyond which the dealer absorbs further increases. The cap costs a premium of 10 to 25 cents per gallon over a straight cost-plus. The buyer gets upside protection without giving up downside opportunity. Caps are common in agricultural propane where a crop-drying season can blow up the budget if November runs unusually wet.
Volume tiers in commercial pricing
Within the commercial segment, price drops with volume in discrete tiers. A typical dealer tier sheet might look like:
| Annual volume | Customer class | Typical discount vs residential |
|---|---|---|
| Under 500 gallons | Light residential | Reference price |
| 500 to 1,200 gallons | Heavy residential | 5 to 10% |
| 1,500 to 5,000 gallons | Light commercial | 8 to 15% |
| 5,000 to 20,000 gallons | Medium commercial | 12 to 20% |
| 20,000 to 100,000 gallons | Heavy commercial | 18 to 30% |
| Above 100,000 gallons | Industrial / agricultural / autogas fleet | 25 to 45% |
Estimated from NPGA and state propane association dealer surveys, plus publicly available school district and municipal procurement filings. Actual contract terms vary by dealer and region.
Practical implications for residential customers
A residential customer cannot directly negotiate to a commercial tier, but the framing matters. If your household consumes 800 gallons per year (a typical fully-propane-heated midwest home), you should expect to qualify for the heavy residential band (5 to 10% discount vs the EIA average) if you ask. The mechanisms for this are: signing an annual-volume commitment in writing, joining a buying group (some state propane associations and farm cooperatives run residential buying groups), or moving from will-call to automatic delivery (which improves the dealer's route economics). The published EIA average is the headline price, not the negotiated price.
The propane gas association in your state often publishes guidance on residential negotiation. Iowa Propane Gas Association, for example, publishes annual fact sheets that include guidance on contract types and what is reasonable to ask a dealer for. The NPGA national consumer site (propane.com) is the higher-level industry consumer resource.
What commercial contracts do not always tell you
A lower per-gallon price often comes with terms a residential customer would not accept. Volume commitments are a common one: the commercial buyer commits to a minimum gallons per year and pays a penalty for falling short. Take-or-pay clauses are essentially the same idea with a different name. Tank ownership is another: many commercial contracts require the customer to own the tank rather than lease, which moves the installation cost from the dealer to the customer and changes the cash flow profile. Service-only contracts (the dealer maintains the tank and equipment but the customer is free to source propane elsewhere) are increasingly common at the larger commercial volumes; they shift the price negotiation to a competitive bid process.
Related
- Restaurant propane price per gallon
- Agricultural propane price per gallon
- Forklift propane price per gallon
- Autogas (propane) price per gallon for fleets
- Wholesale propane price per gallon
FAQ
Does EIA publish a commercial propane price?
Not separately. EIA publishes residential and residential-supplier wholesale weekly during the heating season. Commercial pricing is estimated from NPGA dealer surveys and state association data.
How much can I realistically save by signing an annual contract?
For a residential customer using 800 gallons per year, an annual-volume commitment typically saves 5 to 10% versus the will-call walk-in price. Commercial-size accounts save more. The negotiation lever is the annual volume commitment in writing plus a switch from will-call to automatic delivery.
What is the difference between cost-plus and fixed-price contracts?
Cost-plus means you pay the wholesale benchmark on the day of delivery plus an agreed differential. Fixed-price means you lock in a per-gallon price for a defined volume and period. Fixed-price costs a small premium (5 to 15 cents per gallon) in exchange for budget certainty.
Is the commercial price the same as the wholesale price?
No. Commercial pricing sits between residential retail and wholesale. The largest commercial accounts can land within 10 to 20 cents per gallon of the residential-supplier wholesale benchmark; smaller commercial accounts pay considerably more.