Why are propane prices rising slower than inflation?
Propane & firewood: +1.9% in the 12 months to September 2026 (U.S. Consumer Price Index), versus +3.7% for prices overall. 1-month +0.6%, 3-month +0.5%, 5-year +4.4%.
Inflation check: Rising slower than inflation. +1.9% in a year, versus +3.7% for prices overall (0.5× the overall rate).
The short answer
- Residential propane, kerosene, and firewood prices rose 1.9% over the 12 months to September 2026, lagging overall inflation of 3.7% due to record domestic natural gas liquids production and historically high storage inventories. [1] [2]
- Prices remain insulated from broader inflationary pressures over five years because abundant domestic shale byproduct supplies have offset winter demand spikes and growing export volumes. [2]
What's driving the price
Political, regulatory and trade factors
- Chinese tariffs on U.S. propane exports (Feb 2025 to Sep 2025), State Council Tariff Commission of China: China enacted a 10% tariff on U.S. propane imports in February 2025 that escalated to 125% in April 2025 before returning to 10% in May 2025, causing U.S. propane exports to China to drop 28% in 2025 and backing up additional fuel into domestic storage. [pushed prices down] [2]
Macro factors: supply, weather, disease, energy
- Winter heating demand and cold weather spikes (Sep 2023 to Feb 2025): Consecutive winter heating seasons, punctuated by severe cold weather in January 2024 and January 2025, increased heating fuel consumption and pushed wholesale Mont Belvieu propane prices from $0.70 per gallon in August 2023 to $0.97 per gallon in January 2025, according to the U.S. Energy Information Administration. [pushed prices up] [3] [4]
- Spring thaw and post-winter inventory accumulation (Feb 2025 to Sep 2025): Plunging space-heating demand after the winter season allowed total U.S. propane ending stocks tracked by the U.S. Energy Information Administration to climb from 43.1 million barrels in March 2025 to 103.4 million barrels by late September 2025, driving wholesale and retail prices down sharply. [pushed prices down] [1]
- Record domestic natural gas and natural gas liquids output (Oct 2021 to Sep 2026): A five-year boom in Lower 48 natural gas extraction generated record volumes of propane as a processing byproduct, expanding total inventories past 107 million barrels by August 2026 and capping five-year category price growth at 4.4%. [pushed prices down] [1] [2]
- Surging global petrochemical and export demand (Oct 2025 to Sep 2026): U.S. propane exports climbed to an average of 2 million barrels per day in the first half of 2026 and hit an all-time monthly high of 2.1 million barrels per day in April 2026 due to strong shipments to South Asia, which lifted wholesale Mont Belvieu prices to $0.88 per gallon by September 2026. [pushed prices up] [2] [5]
Retail, brand and seasonal factors
- Pre-winter dealer markup and delivery cost adjustments (May 2026 to Sep 2026): Local fuel dealers and firewood yards adjusted retail prices upward ahead of the 2026–2027 heating season to absorb driver labor costs, local truck transport expenses, and seasonal holding margins. [pushed prices up] [5] [6]
Supply chain right now
- Primary extraction and processing (stable): Abundant natural gas plant processing and stable domestic timber harvesting supply record base volumes of byproduct fuel and wood stock. [2]
- Wholesale bulk transport and cavern storage (moderate): Underground hub storage at locations like Mont Belvieu remains well stocked, though heavy export terminal shipments create competition for pipeline and terminal access. [2] [3]
- Local retail delivery and dealer distribution (moderate): Local delivery routes face persistent costs for truck maintenance, commercial driver wages, and residential tank servicing as the winter delivery season begins. [6]
Researched 2026-10-18 with Google Search. Every point links to its sources; unsourced claims were removed.
Propane & firewood prices, last 12 months
| Month | Change from a year earlier |
|---|---|
| September 2026 | +1.9% |
| August 2026 | +0.6% |
| July 2026 | −0.5% |
| June 2026 | −1.6% |
| May 2026 | +0.6% |
| April 2026 | +2.1% |
| March 2026 | −4.1% |
| February 2026 | −5.5% |
| January 2026 | −7.9% |
| December 2025 | −5.9% |
| November 2025 | −5.9% |
| September 2025 | −3.9% |
| August 2025 | −2.2% |
Source: U.S. Bureau of Labor Statistics, Consumer Price Index (CPI-U), series CUUR0000SEHE02.
Sources
- Weekly U.S. Propane and Propylene Ending Stocks Excluding Propylene at Terminal (Thousand Barrels) (eia.gov)
- U.S. exports of propane reached records in the first half of 2026 - U.S. Energy Information Administration (EIA) (eia.gov)
- Short-Term Energy Outlook - U.S. Energy Information Administration (EIA) (eia.gov)
- U.S. propane prices have traded higher so far this winter compared with last winter - U.S. Energy Information Administration (EIA) (eia.gov)
- Heating Oil & Propane Prices by State (Winter 2026-27) (startbusinessbystate.com)
- US Firewood Market Size, Share, Competitive Analysis and Growth Forecast 2032 (maximizemarketresearch.com)