State prices
Above normalMontana propane prices
Current residential price: $2.179/gal. EIA weekly survey (October-March).
Data through Oct 26, 2026 · source last checked Oct 31, 2026 · page revised Oct 29, 2026
Cite
- Residential
About this data
- Source
- EIA State Heating Oil and Propane Program survey
- Series
- Residential retail propane price
- Basis
- Residential, retail
- Geography
- Montana
- Unit
- $/gal
- Calculation
- Weekly survey, Oct-Mar heating season
- Last observation
- Oct 26, 2026
- Update frequency
- Weekly, Oct-Mar
Now $2.179/gal, 10.9% above the 5-yr median.
Montana residential propane prices stood at $2.179/gal in the week ending October 26, 10.9% above the five-year median for this period. Year over year, prices are up 15.2%.
| Period | Current | Prior | Change |
|---|---|---|---|
| Week over week | $2.179/gal | $2.168/gal | +0.5% |
| Year over year | $2.179/gal | $1.891/gal | +15.2% |
| vs 5-yr median | $2.179/gal | $1.964/gal | +10.9% |
| Heating season | Weeks | Average | Low (week) | High (week) | vs Rocky Mountain average |
|---|---|---|---|---|---|
| 2026-27 (so far) | 4 | $2.100/gal | $1.914/gal (Oct 5) | $2.179/gal (Oct 26) | -19.7 cents |
| 2025-26 | 26 | $2.024/gal | $1.840/gal (Oct 6) | $2.199/gal (Mar 16) | -16.7 cents |
| 2024-25 | 26 | $2.167/gal | $1.882/gal (Oct 14) | $2.382/gal (Mar 3) | -11.9 cents |
| 2023-24 | 26 | $2.093/gal | $1.913/gal (Oct 16) | $2.225/gal (Feb 5) | -16.1 cents |
| 2022-23 | 26 | $2.370/gal | $2.268/gal (Oct 3) | $2.462/gal (Mar 6) | -10.9 cents |
| 2021-22 | 26 | $2.300/gal | $2.045/gal (Oct 4) | $2.514/gal (Mar 14) | -22.8 cents |
Each season runs October through March. The average is the simple mean of that season's weekly readings, and the low and high name their survey week. The last column is Montana's residential price minus the Rocky Mountain residential average over the same weeks, per gallon.
| Measure | Value |
|---|---|
| Homes heating with propane | 59,447 |
| Share of occupied homes | 13.0% |
| Occupied homes (all fuels) | 458,859 |
| National rank by propane share | #6 of 51 |
Previous weeks
Week of Oct 19, 2026
Montana residential propane rose to $2.168/gal through October 19, up 1.3% on the week and 13.3% above the five-year median. Year over year, prices are up 15.6%.
Week of Oct 12, 2026
Montana propane residential prices reached $2.141/gal the week ending October 12, up 11.9% from the prior week and 14.3% year over year. Prices sat 11.6% above the five-year median.
Week of Oct 5, 2026
Montana residential propane stands at $1.914/gal, up 4.0% from a year ago. The price sits 0.4% below the 5-year median.
Week of Mar 30, 2026
Montana residential propane was $2.121/gal in the Mar 30 survey, down 3.5% on the week. The price sits 10.6% below the 4-year median. Year-over-year, Montana is 8.7% cheaper.
About Montana propane prices
Montana carries one of the highest propane heating shares in the country and some of its longest delivery routes. Refineries at Billings and Laurel and gas processing in the eastern part of the state put some supply in state, but reaching a ranch in the northeast corner still means a long haul on winter roads. Cold arrives early here and stays, which makes a dealer's fall fill schedule matter more than any single week's price.
EIA builds this number by calling retail dealers in Montana each week of the October to March heating season and averaging what they report, published Wednesday afternoon. The survey stops for the summer and picks back up in October. EIA publishes no wholesale price for Montana, so the chart carries the residential line alone. The wholesale series runs at the regional level instead, on the Rocky Mountain price page. The Census Bureau's American Community Survey, on five-year estimates, puts propane as the main heating fuel in 13.0% of occupied Montana homes, well above the national middle. That is a large block of homes to keep supplied through a cold January.
For context beyond one state, Montana sits in the Rocky Mountain district: regional prices and Rockies and West Coast propane stocks. The propane usage calculator will estimate your fill cost at this price: gallons per burner-hour from an appliance's rating, gallons a year, and how long a tank of a given size lasts between deliveries.
Common questions
What is the current propane price in Montana?
Montana's residential propane price is $2.179/gal as of Oct 26, 2026, the latest reading in EIA's weekly heating-season survey. The chart above carries the full history and the table shows the week-over-week move.
When is propane most expensive in Montana?
In EIA's weekly survey, which runs October through March, Montana's residential price set its season high in March in four of the last five heating seasons and February in one. The season low came in October in each of the last five heating seasons. From low to high the price moved an average of 36.7 cents a season, and the table above lists each season's high and low week. The regional wrinkle is that Rocky Mountain demand is spread thin across mountain counties and high plains, where the heating season runs long and a delivery route can be a long one. Why propane prices rise in winter has the mechanics.
How does the Montana propane price compare with the Rocky Mountain average?
Montana's residential propane price averaged below the Rocky Mountain average in each of the last five heating seasons, by between 10.9 cents and 22.8 cents a gallon. In the Oct 26, 2026 survey Montana was at $2.179/gal against $2.377/gal for the Rocky Mountain average. The seasons table above gives the gap season by season, and Rocky Mountain propane prices carries the district's own chart.
Why is there no wholesale propane price for Montana?
EIA publishes no state-level wholesale (rack) price for Montana, so the chart above carries the residential line alone. The wholesale series runs at the regional level instead, on the Rocky Mountain price page, and the Mont Belvieu spot price is the national wholesale benchmark. How propane is priced walks through the delivered-service stack that separates a rack gallon from a delivered one.