# Rock Springs, WY rack market

Rock Springs, WY wholesale fuel rack market. 1 terminal posts there, delivered by Pioneer Pipeline. 1 running refinery can reach it by published route, 0 confirmed.

- Terminals: 1 (#232 of 422 rack markets by terminals)
- Pipeline systems delivering: Pioneer Pipeline
- Refineries that can reach it: 1 (0 confirmed or named in a tariff, 1 per research, the rest inferred from a shared city)
- Trade area (estimate): 77,794 people across 10 counties (8 shared with other markets)
- Estimated fuel demand in the trade area: 169,188 gal/day gasoline, 241,450 gal/day diesel (state taxed gallons, FHWA 2025, split by EPA county vehicle miles)
- Fuel taxes in Wyoming (state + federal, ¢/gal, EIA July 1, 2026, before local taxes): gasoline 42.4, diesel 48.4; taxed at terminal rack
- Pipeline supply: One pipeline system delivers here: Pioneer Pipeline. An outage on it leaves the market to truck, rail or water.
- Terminal operators: 1; largest Phillips 66 with 1 of 1 terminals (by count, not volume)
- Pump price, regular gasoline (PADD 4, EIA, 2026-10-26): $4.458/gal
- Pump price, diesel (PADD 4, EIA, 2026-10-26): $6.521/gal

## Cheapest published pipeline route in, by product (line-haul only)
- gasoline: 3.05 ¢/gal from Sinclair Station, Carbon County, Wyoming on Pioneer Pipeline (F.E.R.C. No. 64.28.0)
- diesel: 3.05 ¢/gal from Sinclair Station, Carbon County, Wyoming on Pioneer Pipeline (F.E.R.C. No. 64.28.0)
- jet fuel: 3.05 ¢/gal from Sinclair Station, Carbon County, Wyoming on Pioneer Pipeline (F.E.R.C. No. 64.28.0)

## Terminals
- Phillips 66 Pipeline - Rock Springs (T-83-WY-4051), Rock Springs, WY — Pioneer Pipeline

## Refineries that can supply it
- HF Sinclair Parco Refinery (Sinclair, Wyoming), Sinclair, WY — via Pioneer Pipeline (per research)

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Source: Thinking On Energy Supply Explorer — https://thinkingonenergy.com/supply/market/market-rock-springs-wy/
Built from published FERC pipeline tariffs, EIA-820, the IRS Terminal Control Number list and sourced research. Rates are line-haul only. Cite as: Thinking On Energy, Supply Explorer, 2026-10-29.