Wyoming propane, regional benchmark
Wyoming propane prices: $2.27 a gallon
Latest EIA residential survey, week ending 30 March 2026, the final release of the 2025-26 heating season. Weekly updates resume in October; the wholesale benchmark below is live.
EIA does not survey Wyoming on its own. The figure here is the Rocky Mountain (PADD 4) regional average, the closest published benchmark; real Wyoming quotes can sit well either side of it.
Gas geology on the doorstep and a heating season as long as any in the lower 48, sold into the second-least-densely-populated state in the country: what a Wyoming household pays turns almost entirely on how far the bobtail has to drive.
Latest EIA residential propane price
Source: EIA State Heating Oil and Propane Program, regional residential series. Refreshed automatically every Tuesday in season; wholesale daily.
Wyoming at a glance
Benchmark$2.27/gal
vs US ($2.67)15% below
500-gal fill (400 usable)$906
Week by week, 2025-26 season
Rocky Mountain (PADD 4), the nearest published series to Wyoming
Every point is an EIA survey week. This season the series ran from a low of $2.06 (6 Oct) to a high of $2.29 (23 Mar). Against the same week a year earlier it is -6%.
$2.06
Season low
6 October 2025
$2.29
Season high
23 March 2026
$2.40
Same week last year
31 March 2025, now -6%
$0.85
Wholesale today
Mont Belvieu spot, 15 September 2026, +17c vs a month ago
Source: EIA State Heating Oil and Propane Program, residential propane, full-service delivery, published October to March. Wholesale is the Mont Belvieu, TX spot price; retail usually follows it by four to eight weeks, which makes it the best off-season signal of where Wyoming prices are heading.
What a fill costs in Wyoming at $2.27
Tanks fill to 80% of their stated size to leave room for expansion, so a 500-gallon tank takes about 400 gallons. The right-hand column is the difference against the same fill at the US average.
| Tank | Usable gallons | Fill at $2.27 | vs US ($2.67) |
|---|---|---|---|
| 100 gal | 80 gal | $181 | -$33 |
| 250 gal | 200 gal | $453 | -$82 |
| 500 gal | 400 gal | $906 | -$163 |
| 1000 gal | 800 gal | $1813 | -$326 |
A Wyoming home heating on propane through a typical winter burns 1,000 to 1,500 gallons, so fuel alone runs about $2266 to $3399 at this price, before tank rent or a service plan. The average is a benchmark, not a quote: enter your ZIP to ask up to three local dealers what they would charge you.
Wyoming against its West neighbours
The West splits into two clusters. Hawaii and Alaska are the most expensive US markets on import-only logistics, and California and the Pacific Northwest sit above the national average on long supply chains. The Mountain States, Wyoming with Colorado, Idaho, Montana, Utah and New Mexico, share the PADD 4 footprint and run at or below the national mark thanks to in-state NGL production and refining. Wyoming lands near the bottom of that cluster.
| State | Price/gal | 500-gal fill | vs US ($2.67) |
|---|---|---|---|
| Montana | $2.12 | $848 | -21% |
| Wyoming (regional est.) | $2.27 | $906 | -15% |
| Colorado | $2.30 | $921 | -14% |
| Utah | $2.34 | $935 | -13% |
| Idaho | $2.40 | $959 | -10% |
| Arizona (regional est.) | $2.72 | $1088 | +2% |
| New Mexico (regional est.) | $2.93 | $1172 | +10% |
| Nevada (regional est.) | $2.95 | $1180 | +10% |
| Oregon (regional est.) | $2.98 | $1192 | +11% |
| Washington (regional est.) | $3.02 | $1208 | +13% |
| California (regional est.) | $3.42 | $1368 | +28% |
| Alaska (regional est.) | $3.85 | $1540 | +44% |
| Hawaii (regional est.) | $4.15 | $1660 | +55% |
| West average | $2.88 | $1152 | +8% |
States marked regional est. are not surveyed individually by EIA and carry their PADD regional figure. Full table on prices by state.
Why Wyoming runs 15% under the national average
The reasons are structural, not seasonal: local gas geology, in-state refining, and a small, dispersed customer base that is nearly all cold-climate primary heat. The one drag pulling the other way is the cost of reaching ranch country.
Powder River and Green River Basin NGL.
Wyoming hosts two of PADD 4's most prolific gas-processing footprints. Plants in the Powder River Basin (Campbell, Converse, Sheridan counties) and the Green River Basin (Sweetwater, Sublette counties) strip propane and other NGLs out of the raw gas stream and feed in-state and regional terminals. That removes the long-haul rail-from-Texas leg that inflates Northeast prices, and a short supply chain means less per-gallon overhead baked in before the bobtail ever leaves the yard.
In-state refining at Sinclair and Cheyenne.
The refinery at Sinclair in Carbon County and the HF Sinclair refinery in Cheyenne, Laramie County, both yield LPG as a byproduct alongside gasoline and diesel. Combined with the Casper-area refining and pipeline footprint, most Wyoming population centres draw propane sourced within 50 to 200 miles. Compare that to a state like Connecticut, where every gallon arrives via rail-to-truck from Pennsylvania or beyond; each handoff is a margin layer Wyoming retailers simply do not have to cover.
Natural-gas grid keeps propane a rural primary-heat fuel.
Casper, Cheyenne and most Wyoming towns sit on Black Hills Energy natural-gas distribution, so residential propane concentrates in the rural ranching counties and the mountain and second-home communities outside the gas mains. That keeps the propane customer base small, but the households that do use it are cold-climate primary-heat homes burning serious annual volume, which gives suppliers steady, high-gallon accounts rather than the small supplemental loads typical of southern states.
Ranch-route economics, the offsetting drag.
Wyoming's roughly six-people-per-square-mile density means a Sweetwater or Carbon County route can cover 80 to 120 miles to serve a handful of ranch tanks, against 20 miles for 15 suburban tanks in Casper. That route premium is real and is why an actual rural quote almost always lands above the regional average. Owning your tank and grouping deliveries with neighbours on the same route are the two biggest levers for shaving it, plus a fall pull from ag drying and barn heat that lets suppliers run fuller routes in harvest season.
Buying propane well in Wyoming: four moves that decide the bill
A good shortlist is step one. On a high-use ranch or mountain account, the gap between a careless fill and a well-run propane account is real money across a Wyoming winter. Here is where it is won.
01
Vet the supplier yourself
Wyoming has no consumer licence lookup, so ask directly. Confirm the operator's bulk plant has State Fire Marshal approval, ask for NFPA 58 certification on installs, and confirm DOT hazmat credentials for drivers. Check membership at rmpropane.org as a credibility signal, not a licence.
02
Lock the summer rate
PADD 4 wholesale bottoms out May through August. Most Wyoming suppliers run pre-buy and cap-price enrolment across that window. On a 1,000-gallon home, locking 10 to 15% under winter spot is worth roughly $272 to $408 a year. Prefer a cap-price contract, which keeps the savings if wholesale falls, over a flat pre-buy, and ask whether unused prepaid gallons roll forward.
03
Quote local against national
Wyoming runs a two-tier market: family independents and national carriers. In rural counties the spread between the cheapest local and the priciest national quote can be wide, so pull one written quote from each. If you own your tank, say so up front, it removes the switching penalty leased-tank customers face.
04
Check LIEAP eligibility
Wyoming's LIHEAP program, LIEAP, run by the Department of Family Services, helps propane households at or below 60% of state median income (about $67,041 for a family of four), paid toward your supplier. Apply October through April at lieapwyo.org or on (800) 246-4221. Crisis Intervention covers a near-empty tank or broken furnace within 18 business hours.
Rated by customers
Wyoming propane dealers worth calling first
A short, hand-checked list with strong public review scores, spread across the state. Ratings were read from the platforms named in August 2026 and move over time; a high score is where to start, not a guarantee. Get three written quotes whoever you call.
Star Valley & Jackson (western Wyoming)
Fall River Propane
Etna, Wyoming
4.9160+ reviews, Birdeye (company-wide, ID/WY/MT)
Independent delivering to Star Valley and the Jackson Hole area since 1999, one of the few western-Wyoming operators with a large public review base, though that score spans its three-state footprint.
See the reviews ›Wind River / Fremont County (central Wyoming)
Pirate Propane
Lander, Wyoming
4.414 reviews, Chamber of Commerce
Fremont County's locally owned operator, delivering to residential, ranch and state accounts across the Lander and Riverton basin. Rating is for the Lander location.
See the reviews ›Northeast & central Wyoming
Blakeman Propane
Gillette, Wyoming
3.89 reviews, Birdeye
Family-owned multi-branch supplier with yards in Gillette, Casper, Cody, Buffalo, Sundance and Rawlins, covering a wide swath of eastern and central Wyoming. Rating is for the Gillette location.
See the reviews ›Wyoming propane, the questions people ask
Does this page list every licensed propane dealer in Wyoming?
No, and we will not pretend otherwise. Wyoming does not publish a browsable, consumer-facing per-dealer LP-gas registry the way Wisconsin, Texas or Florida do, so this page carries no full state dealer directory and no fabricated one. The Wyoming State Fire Marshal enforces the state LP-Gas Code, adopted as NFPA 58 (2020 edition), for tank installation and bulk-plant safety, but that is a safety-code authority, not a searchable list of retail sellers you can look a company up in. What we offer instead is a hand-checked shortlist of real, well-reviewed operators by region, plus an honest call-list for the towns where public reviews are too thin to rank fairly: Butch's Propane (Cheyenne, southeast and Laramie County, local residential, commercial and agricultural delivery), D & C Propane (Mills, greater Casper, locally owned and serving homes and small business) and Western States Propane (Riverton, Wind River Basin, a long-running operator for residential, ag and industrial accounts). Those three are not rated here; confirm current service area and licensing before you commit, and use the ZIP finder for your exact town. National carriers also serve most Wyoming towns and belong in your quote set as the national tier.
How do I vet a Wyoming propane supplier if there is no licence lookup?
Put the vetting burden on the supplier. Wyoming regulates the trade lighter than most states: the State Fire Marshal (wsfm.wyo.gov) adopts and enforces NFPA 58 for installs and bulk storage, while much day-to-day compliance sits at county level (local fire and building authorities permit tank installs) or federal (US DOT for hazmat and bobtail delivery, OSHA for plant operations). Before you sign, ask a prospective supplier to confirm their bulk plant has State Fire Marshal approval, ask for proof of NFPA 58 certification on installs, and confirm DOT hazmat credentials for their delivery drivers. Membership in the Rocky Mountain Propane Association (rmpropane.org) or the National Propane Gas Association (npga.org) is a useful credibility signal but is not a state licence. Then get the quote in writing with per-gallon price, delivery fee, tank rental and any minimum-delivery surcharge itemised.
Am I eligible for Wyoming LIEAP propane assistance?
Wyoming runs the federal LIHEAP block grant as the Low Income Energy Assistance Program (LIEAP), administered by the Wyoming Department of Family Services (DFS) and funded through the US Department of Health and Human Services. Households at or below 60% of state median income qualify; for the 2025-2026 program year that is roughly $67,041 for a family of four and about $45,587 for a two-person household. Propane is explicitly covered alongside natural gas, electricity, wood, pellets and coal, with the seasonal benefit generally paid straight to your heating-fuel supplier. Priority goes to households that include someone aged 60 or older, a person with a disability, or a child age 5 or under. The heating-assistance application window runs October 1 through April 30. Apply online through the DFS utility-assistance portal at lieapwyo.org or call (800) 246-4221; a separate Crisis Intervention and Prevention component handles emergencies such as a near-empty tank, a broken furnace, or a shut-off notice, with heat-loss situations addressed within 18 business hours of application.
Why does this page show Wyoming as a regional PADD 4 figure instead of a state number?
Because EIA's State Heating Oil and Propane Program (SHOPP) does not publish a state-level residential propane series for Wyoming. The price shown here, $2.27 a gallon, is the PADD 4 (Rocky Mountain) regional estimate that EIA does publish, used as the Wyoming proxy. PADD 4 covers Colorado, Idaho, Montana, Utah and Wyoming, five states inside the same NGL-extraction and refining footprint with similar climate-driven demand. It is a reasonable stand-in because Wyoming sits squarely in that supply region, but it is a regional average, not a Wyoming-only survey, so a real quote in a rural county can land meaningfully above it.
Why are ranch-route propane fills more than the EIA average?
Wyoming has the second-lowest population density of any US state, roughly six people per square mile, with customers spread across vast ranching country in Sweetwater, Carbon, Albany, Park and Sheridan counties. A bobtail that serves four or five ranch tanks across 90 or 100 miles costs the supplier far more per gallon delivered than an urban Casper or Cheyenne route filling 15 tanks inside 20 miles. Suppliers recover that with a per-mile delivery surcharge, a higher minimum-delivery quantity (often 200 to 300 gallons rather than a 100-gallon urban minimum), a will-call premium over auto-fill, or a flat rural per-gallon uplift. Against the $2.27 regional figure, a real ranch-route quote is commonly 10 to 25% higher. The levers you control: own your tank outright so you can shop every fill, schedule deliveries to coincide with neighbouring tanks on the same route, and book an off-peak summer fill.
How does Jackson Hole and Yellowstone demand affect what I pay?
Two opposing pulls. Yellowstone, Grand Teton and their gateway towns (Jackson, Cody) generate concession-grade summer demand from lodges, RV parks and food-service operators that runs opposite the residential winter peak; that year-round volume base is generally helpful for local suppliers' route economics. The exception is Teton County second-home demand: Jackson Hole holds one of the highest concentrations of high-end seasonal residences in the country, many propane-heated, and the resulting winter spike in a sparsely populated county lets suppliers charge a meaningful premium over what a comparable household would pay in Casper or Cheyenne. If you heat a home in Teton County, quoting two or three suppliers and owning your tank matter more than almost anywhere else in the state.
When is the cheapest time to buy propane in Wyoming, and how should I run a tank through a hard winter?
Late spring through midsummer, roughly May to August, is when PADD 4 wholesale bottoms out: residential demand is near zero while Powder River Basin and Green River Basin gas processing keeps NGL supply steady. Most Wyoming suppliers run pre-buy and cap-price enrolment across that window; pre-buy locks a per-gallon rate for next winter's deliveries, while a cap-price contract sets a ceiling but still lets you benefit if wholesale falls. On a 1,000-gallon annual household, locking 10 to 15% under winter-spot rates is worth about $272 to $408 a year. Through the winter itself, three rules matter in a state where Casper, Sheridan and Jackson regularly see lows of -20F to -40F: never let the tank fall below 30% (vapour pressure on the coldest days struggles to keep up with furnace draw and you risk loss-of-fire); top up in late October before the season opens and again in late December if you are under 50%; and if drifted county roads can keep a bobtail away for a week or more, size up to a 1,000-gallon tank so you can ride out the gap. Read every contract for rollover of unused pre-paid gallons and cancellation terms if you sell the property.
Keep reading
All Wyoming dealers
Wyoming propane dealers by city and ZIP.
Dealers near you
Enter a ZIP to see the closest dealers and ask up to three for a price.
Propane prices today
The daily wholesale benchmark and the live state summer surveys.
Prices by state
All 50 states side by side, with regional context.
What a fill costs
Tank sizes, the 80% rule and the national refill guide.
How to pay less
Pre-buy timing, switching, owned versus leased tanks.
500-gallon tank cost
Buy, install and refill costs for the most common rural-Wyoming tank size.