Montana Propane Prices in 2026
16 EIA surveys, Jan 5, 2026 to Oct 19, 2026 (year in progress)
Last updated
- Average
- $2.115
- High
- $2.199
- Mar 16
- Low
- $1.914
- Oct 5
- Against 2025
- Down −$0.007 (−0.3%)
- change in average
In 2026 so far, EIA published 16 residential propane prices for Montana. They averaged $2.115 a gallon, from a low of $1.914 on October 5, 2026 to a high of $2.199 on March 16, 2026.
The average was 0.3% below 2025’s $2.122.
EIA surveys only during the heating season in most years, so there are no Montana values for April, May, June, July, August and September.
Week by week
Every survey in 2026
| Month | Survey dates and prices | Month average |
|---|---|---|
| January | Jan 5$2.092Jan 12$2.099Jan 19$2.101Jan 26$2.112 | $2.101 |
| February | Feb 2$2.108Feb 9$2.111Feb 16$2.120Feb 23$2.122 | $2.115 |
| March | Mar 2$2.116Mar 9$2.123Mar 16$2.199Mar 23$2.199Mar 30$2.121 | $2.152 |
| October | Oct 5$1.914Oct 12$2.141Oct 19$2.168 | $2.074 |
Source: U.S. Energy Information Administration, weekly propane residential price table. Prices exclude taxes.
Propane — weekly Montana, CSV (12 rows, from 2026-02-02 to 2026-10-19)
Columns: survey_date, area, fuel, price_usd_per_gallon_excl_taxes. Prices are residential, in dollars per gallon ($/gal), excluding taxes. Source: EIA.