Supply Explorer
Rack market

Seattle, WA

#46 of 422 U.S. rack markets by terminals

OPIS rack city 962 Gasoline & diesel Renewable diesel Aviation gasoline Biodiesel Ethanol
terminals
6
pipeline systems delivering
2
refineries confirmed
0
more per research or by route
4
people in the trade area
2,884,773
gal/day gasoline · estimated demand
2,031,504
gal/day diesel · estimated demand
531,896

Terminals in this market

The racks that post prices in this market. Pipelines = systems with a tariff delivery point at the terminal.
Terminal TCN Location Delivered by
Kinder Morgan Liquids Terminals LLC T-91-WA-4406 Seattle, WA Olympic Pipeline, Coastal Marine
Olympic Pipe Line Company - Renton T-91-WA-4435 Renton, WA Olympic Pipeline
Phillips 66 Pipeline Renton Terminal T-91-WA-4404 Renton, WA Olympic Pipeline
Seaport Midstream Partners LLC - Seattle Terminal T-91-WA-4425 Seattle, WA Olympic Pipeline, Coastal Marine
Shell Oil Products US Seattle Operations T-91-WA-4408 Seattle, WA Olympic Pipeline, Coastal Marine
Swissport Fueling Incorporated T-91-WA-4431 Seattle, WA Olympic Pipeline

Pipelines delivering to this market

Each system with a tariff delivery point at one of this market’s terminals, and how many running refineries can ship on it to here.

Pipeline system Terminals here Delivery points Refineries confirmed All reachable
Olympic Pipeline 6 3 0 4
Coastal Marine 3 3 0 1

Refineries that can supply this market

Running refineries that can reach a terminal here by published route, including across connecting carriers, confirmed links first. 0 are confirmed or named in a tariff; 4 are per research; 0 are inferred because the refinery shares a city with a tariff origin. Capacity, contracts and who actually ships are not known from tariffs.
Refinery Location Via Link
BP Cherry Point Refinery Ferndale, WA Olympic Pipeline per research
HF Sinclair Puget Sound Refinery Anacortes, WA Olympic Pipeline, Coastal Marine per research
Marathon Anacortes Refinery Anacortes, WA Olympic Pipeline per research
Phillips 66 Ferndale Refinery Ferndale, WA Olympic Pipeline per research

Trade area

people in the trade area · 2025 estimate
2,884,773
rank of 422 rack markets by people
#18
gallons of gasoline a day · estimate, 2025
2,031,504
gallons of diesel a day · estimate, 2025
531,896
counties wholly in this market
0
counties shared with other markets
15
An estimate of who lifts here. Each county goes to its nearest rack market with terminals; a market within 1.5 times that distance (or 25 miles more) shares it, up to 4 markets, weighted toward the closer one and the one with more terminals. Distances are straight-line from the county’s centre. Shares of a county always add to 100%, so the people counted across all markets add back to the U.S. total.
County State Share here People counted here Gasoline gal/day Diesel gal/day County population Miles
King County WA 70% 1,645,678 1,116,830 276,489 2,344,939 23
Snohomish County WA 49% 422,703 277,312 76,689 870,656 45
Pierce County WA 29% 277,830 192,615 47,341 946,288 33
Kitsap County WA 74% 209,782 133,797 31,537 283,374 19
Thurston County WA 33% 100,923 80,210 21,954 304,261 47
Grays Harbor County WA 48% 37,845 36,933 9,783 78,144 77
Mason County WA 47% 33,533 24,074 6,621 71,165 42
Chelan County WA 38% 31,474 27,058 7,566 81,941 82
Clallam County WA 34% 26,440 20,493 5,678 78,202 84
Island County WA 30% 25,826 13,566 3,724 85,657 48
Lewis County WA 23% 20,545 25,090 8,778 88,062 65
Kittitas County WA 42% 20,336 48,066 25,090 48,803 81
Jefferson County WA 42% 14,349 16,185 4,696 33,970 61
Okanogan County WA 28% 12,483 14,207 4,516 45,230 138
Pacific County WA 20% 4,988 5,045 1,429 24,357 96

Fuel demand is an estimate: each state’s taxed gallons for the year (FHWA) are split among its counties by where the driving happens (EPA county vehicle miles, weighted by how much fuel each vehicle type burns), then shared to markets as above. Every state adds back to its FHWA total. Gasoline includes the ethanol blended into it; diesel is FHWA’s special fuels. Expect diesel to be least reliable along long-haul corridors, where trucks buy fuel in one county and burn it in another. Population: U.S. Census Bureau county estimates.

How good is it? Checked in October 2026 against the county retail sales Iowa and California publish: for gasoline, about 3–5% of gallons landed in the wrong rack market and a typical market was within 5–6%. For diesel, 14–21% landed in the wrong market and a typical market was 30–45% off, with truck-stop corridors such as Bakersfield and Stockton under-counted. Treat gasoline as a working estimate and diesel as a rough guide.

Cost to serve this market by pipeline

What it costs to move a gallon here from each pipeline origin at filed tariff rates: line-haul, the cost of financing the product on the way and in the tank, pipeline loss, and terminaling. It is a cost at filed rates, not a market price: add it to the origin spot price for a delivered cost. Lines marked "estimate" are placeholders until the pipeline or terminal figure is on file; in the routes table, * marks a figure taken from the tariff.

Gasoline: product adder

¢/gal · lowest adder
3.01
¢/gal · line-haul tariff · published
0.74
¢/gal · carrying cost · calculated
0.44
¢/gal · pipeline loss · estimate
0.33
¢/gal · terminaling · estimate
1.50
days financed
8.4

Lowest route: from Bayview, Skagit County on Olympic Pipeline to Renton, King County (WUTC No. 57 item Route 06).

How the lowest adder is worked, line by line
Line ¢/gal Basis Source or working
Line-haul tariff 0.744 published Olympic Pipeline WUTC No. 57 item Route 06: Bayview, Skagit County → Renton, King County, 31.26 ¢/bbl
Carrying cost 0.441 calculated $3.260000/gal × 5.9000% ÷ 365 × 8.367 days (0.867 in transit, 2.50 waiting on the cycle, 5.00 in terminal inventory); transit estimated: 83 pipeline miles at 4.0 mph (general estimate)
Pipeline loss 0.326 estimate flat estimate $0.0033/gal, applied 1 time
Terminaling 1.500 estimate Flat estimate: no fee on file for this terminal
Product adder 3.011 Sum of the lines above, over the origin spot price

Every published route, lowest adder first (12 of 12). Origins are priced at the same index here. "Origin must be cheaper by" is how far below the lowest route's origin a route's own origin price has to be before that route wins.

Origin Pipeline Delivery point Terminals Line-haul Carrying Loss Terminaling Adder ¢/gal Days Origin must be cheaper by Tariff
Bayview, Skagit County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 0.74 0.44 0.33 1.50 3.01 8.4 — WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Bayview, Skagit County Olympic Pipeline Seattle, King County only point in the city 4 terminals 0.85 0.44 0.33 1.50 3.11 8.3 0.10 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Bayview, Skagit County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 0.88 0.44 0.33 1.50 3.15 8.4 0.14 WUTC No. 57 item Route 05 effective 2024: check for a newer filing
Anacortes, Skagit County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 1.25 0.44 0.33 1.50 3.52 8.4 0.51 WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Anacortes, Skagit County Olympic Pipeline Seattle, King County only point in the city 4 terminals 1.36 0.44 0.33 1.50 3.62 8.3 0.61 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Anacortes, Skagit County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 1.39 0.44 0.33 1.50 3.66 8.4 0.65 WUTC No. 57 item Route 05 effective 2024: check for a newer filing
Ferndale, Whatcom County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 1.52 0.46 0.33 1.50 3.81 8.7 0.79 WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Cherry Point, Whatcom County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 1.58 0.46 0.33 1.50 3.87 8.7 0.86 WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Ferndale, Whatcom County Olympic Pipeline Seattle, King County only point in the city 4 terminals 1.63 0.45 0.33 1.50 3.91 8.6 0.90 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Ferndale, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 1.66 0.46 0.33 1.50 3.94 8.7 0.93 WUTC No. 57 item Route 05 effective 2024: check for a newer filing
Cherry Point, Whatcom County Olympic Pipeline Seattle, King County only point in the city 4 terminals 1.69 0.45 0.33 1.50 3.97 8.6 0.96 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Cherry Point, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 1.72 0.46 0.33 1.50 4.01 8.7 1.00 WUTC No. 57 item Route 05 effective 2024: check for a newer filing

Diesel: product adder

¢/gal · lowest adder
3.35
¢/gal · line-haul tariff · published
0.74
¢/gal · carrying cost · calculated
0.64
¢/gal · pipeline loss · estimate
0.47
¢/gal · terminaling · estimate
1.50
days financed
8.4

Lowest route: from Bayview, Skagit County on Olympic Pipeline to Renton, King County (WUTC No. 57 item Route 06).

How the lowest adder is worked, line by line
Line ¢/gal Basis Source or working
Line-haul tariff 0.744 published Olympic Pipeline WUTC No. 57 item Route 06: Bayview, Skagit County → Renton, King County, 31.26 ¢/bbl
Carrying cost 0.636 calculated $4.700000/gal × 5.9000% ÷ 365 × 8.367 days (0.867 in transit, 2.50 waiting on the cycle, 5.00 in terminal inventory); transit estimated: 83 pipeline miles at 4.0 mph (general estimate)
Pipeline loss 0.470 estimate flat estimate $0.0047/gal, applied 1 time
Terminaling 1.500 estimate Flat estimate: no fee on file for this terminal
Product adder 3.350 Sum of the lines above, over the origin spot price

Every published route, lowest adder first (12 of 12). Origins are priced at the same index here. "Origin must be cheaper by" is how far below the lowest route's origin a route's own origin price has to be before that route wins.

Origin Pipeline Delivery point Terminals Line-haul Carrying Loss Terminaling Adder ¢/gal Days Origin must be cheaper by Tariff
Bayview, Skagit County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 0.74 0.64 0.47 1.50 3.35 8.4 — WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Bayview, Skagit County Olympic Pipeline Seattle, King County only point in the city 4 terminals 0.85 0.63 0.47 1.50 3.45 8.3 0.10 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Bayview, Skagit County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 0.88 0.63 0.47 1.50 3.49 8.4 0.14 WUTC No. 57 item Route 05 effective 2024: check for a newer filing
Anacortes, Skagit County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 1.25 0.64 0.47 1.50 3.86 8.4 0.51 WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Anacortes, Skagit County Olympic Pipeline Seattle, King County only point in the city 4 terminals 1.36 0.63 0.47 1.50 3.96 8.3 0.61 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Anacortes, Skagit County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 1.39 0.64 0.47 1.50 4.00 8.4 0.65 WUTC No. 57 item Route 05 effective 2024: check for a newer filing
Ferndale, Whatcom County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 1.52 0.66 0.47 1.50 4.15 8.7 0.80 WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Cherry Point, Whatcom County Olympic Pipeline Renton, King County Phillips 66 Pipeline Renton Terminal; Olympic Pipe Line Company - Renton 1.58 0.66 0.47 1.50 4.21 8.7 0.86 WUTC No. 57 item Route 06 effective 2024: check for a newer filing
Ferndale, Whatcom County Olympic Pipeline Seattle, King County only point in the city 4 terminals 1.63 0.65 0.47 1.50 4.25 8.6 0.90 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Ferndale, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 1.66 0.66 0.47 1.50 4.29 8.7 0.94 WUTC No. 57 item Route 05 effective 2024: check for a newer filing
Cherry Point, Whatcom County Olympic Pipeline Seattle, King County only point in the city 4 terminals 1.69 0.65 0.47 1.50 4.31 8.6 0.96 WUTC No. 57 item Route 04 effective 2024: check for a newer filing
Cherry Point, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County Swissport Fueling Incorporated 1.72 0.66 0.47 1.50 4.35 8.7 1.00 WUTC No. 57 item Route 05 effective 2024: check for a newer filing
Inputs and assumptions behind these figures
  • Product value (for carrying cost and loss only): the prior day's spot price. Gasoline: OilPriceAPI GASOLINE_RBOB_USD, 2026-10-07. Diesel: OilPriceAPI HEATING_OIL_USD, 2026-10-07. These are the New York Harbor futures benchmarks, not a Gulf Coast price.
  • Interest rate: SOFR 3.90% (2026-10-06) + 2.0 points.
  • Transit (estimate): straight-line miles between the tariff origin and delivery point × 1.15, at 4.0 mph unless the pipeline has its own figure.
  • Days financed (estimate): transit, plus half a 5-day shipping cycle waiting to lift, plus 5 days of stock at the terminal.
  • Pipeline loss: the charge or volume deduction the tariff states, where it states one (marked *; a deduction is costed at the product value above). Otherwise an estimate of 0.10% of product value per pipeline, two for a joint rate; that includes pipelines that share out actual losses without publishing a figure.
  • Terminaling: the carrier's terminal charge where its tariff states one (marked *), otherwise a flat 1.5¢/gal estimate.
  • Rates used: each pipeline's ordinary filed rate. Committed, volume-tier, discount and bid rates are left out, as are conditional fees (shown on each pipeline page), additives, taxes and the value of line space.
  • Assumption set in force from 2026-10-01; review by 2027-01-01.

Published line-haul rates, all products and rate types

¢/gal · cheapest gasoline · from Bayview, Skagit County on Olympic Pipeline
0.74
¢/gal · cheapest diesel · from Bayview, Skagit County on Olympic Pipeline
0.74
Published line-haul rates into a terminal here, cheapest first (24 of 24 routes). Add the origin spot price for a delivered cost; compare that with the rack price for the netback. Not included: terminal throughput and rack fees, and the 3 conditional tariff fees listed on each pipeline page.
Origin Pipeline Delivery point Product ¢/bbl ¢/gal Refineries at the origin Tariff
Bayview, Skagit County Olympic Pipeline Renton, King County gasoline, distillate 31.26 0.74 WUTC No. 57 item Route 06
Bayview, Skagit County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 35.74 0.85 WUTC No. 57 item Route 04
Bayview, Skagit County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 37.11 0.88 WUTC No. 57 item Route 05
Bayview, Skagit County Olympic Pipeline Renton, King County gasoline, distillate 39.61 0.94 WUTC No. 57 item Route 06
Bayview, Skagit County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 44.03 1.05 WUTC No. 57 item Route 04
Bayview, Skagit County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 45.40 1.08 WUTC No. 57 item Route 05
Anacortes, Skagit County Olympic Pipeline Renton, King County gasoline, distillate 52.63 1.25 HF Sinclair Puget Sound Refinery; Marathon Anacortes Refinery WUTC No. 57 item Route 06
Anacortes, Skagit County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 57.05 1.36 HF Sinclair Puget Sound Refinery; Marathon Anacortes Refinery WUTC No. 57 item Route 04
Anacortes, Skagit County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 58.47 1.39 HF Sinclair Puget Sound Refinery; Marathon Anacortes Refinery WUTC No. 57 item Route 05
Anacortes, Skagit County Olympic Pipeline Renton, King County gasoline, distillate 60.91 1.45 HF Sinclair Puget Sound Refinery; Marathon Anacortes Refinery WUTC No. 57 item Route 06
Ferndale, Whatcom County Olympic Pipeline Renton, King County gasoline, distillate 63.95 1.52 Phillips 66 Ferndale Refinery WUTC No. 57 item Route 06
Anacortes, Skagit County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 65.32 1.56 HF Sinclair Puget Sound Refinery; Marathon Anacortes Refinery WUTC No. 57 item Route 04
Cherry Point, Whatcom County Olympic Pipeline Renton, King County gasoline, distillate 66.46 1.58 BP Cherry Point Refinery WUTC No. 57 item Route 06
Anacortes, Skagit County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 66.79 1.59 HF Sinclair Puget Sound Refinery; Marathon Anacortes Refinery WUTC No. 57 item Route 05
Ferndale, Whatcom County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 68.44 1.63 Phillips 66 Ferndale Refinery WUTC No. 57 item Route 04
Ferndale, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 69.83 1.66 Phillips 66 Ferndale Refinery WUTC No. 57 item Route 05
Cherry Point, Whatcom County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 70.95 1.69 BP Cherry Point Refinery WUTC No. 57 item Route 04
Ferndale, Whatcom County Olympic Pipeline Renton, King County gasoline, distillate 72.32 1.72 Phillips 66 Ferndale Refinery WUTC No. 57 item Route 06
Cherry Point, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 72.32 1.72 BP Cherry Point Refinery WUTC No. 57 item Route 05
Cherry Point, Whatcom County Olympic Pipeline Renton, King County gasoline, distillate 74.79 1.78 BP Cherry Point Refinery WUTC No. 57 item Route 06
Ferndale, Whatcom County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 76.77 1.83 Phillips 66 Ferndale Refinery WUTC No. 57 item Route 04
Ferndale, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 78.13 1.86 Phillips 66 Ferndale Refinery WUTC No. 57 item Route 05
Cherry Point, Whatcom County Olympic Pipeline Seattle, King County same city (inferred) gasoline, distillate 79.21 1.89 BP Cherry Point Refinery WUTC No. 57 item Route 04
Cherry Point, Whatcom County Olympic Pipeline Sea-Tac International Airport, King County gasoline, distillate 80.58 1.92 BP Cherry Point Refinery WUTC No. 57 item Route 05

Supply resilience

pipeline supply
Limited
pipeline systems delivering
2
terminals on two or more pipelines
3
terminals with no pipeline tariff
0

Two pipeline systems deliver here: one can cover for the other where a terminal is on both.

If a pipeline system goes down

Pipeline system Terminals it reaches here With no other pipeline Which
Olympic Pipeline 6 3 Olympic Pipe Line Company - Renton; Phillips 66 Pipeline Renton Terminal; Swissport Fueling Incorporated
Coastal Marine 3 0

Counts pipeline systems with a tariff delivery point here, not capacity, storage or contracts. A system with two lines into the market still counts once, and a terminal with one pipeline may also receive by truck, rail or water. For a refinery or pipeline outage across every market it touches, open that facility’s page.

Delivered ethanol cost

¢/gal over Chicago ethanol · lowest in the market
+24.63
¢/gal over Chicago ethanol · highest
+24.64

An estimate for each terminal: the cheapest of published rail rates and trucking from the nearest plants, plus basis, transload, terminaling and carrying cost. Each terminal page shows the build-up line by line.

Terminal ¢/gal over Chicago By From Miles
Olympic Pipe Line Company - Renton +24.63 rail Arkalon Ethanol LLC (Liberal, KS) 1,781
Phillips 66 Pipeline Renton Terminal +24.63 rail Arkalon Ethanol LLC (Liberal, KS) 1,783
Swissport Fueling Incorporated +24.63 rail Arkalon Ethanol LLC (Liberal, KS) 1,786
Kinder Morgan Liquids Terminals LLC +24.64 rail Arkalon Ethanol LLC (Liberal, KS) 1,795
Seaport Midstream Partners LLC - Seattle Terminal +24.64 rail Arkalon Ethanol LLC (Liberal, KS) 1,795
Shell Oil Products US Seattle Operations +24.64 rail Arkalon Ethanol LLC (Liberal, KS) 1,795

Nearby rack markets

Rack markets within 75 miles (straight line): where a buyer here could also lift.

Rack market Miles Terminals Pipelines
Tacoma, WA 18 4 2
Anacortes, WA 73 4 1

Rates are pipeline line-haul transcribed from published FERC tariffs; every figure cites its tariff and item. Cost to serve (netback) adds origin spot price and destination fees. "Confirmed" links match a tariff delivery point to the facility; "same city" means the point is in the facility's city — plausible, not proof; "per research" means the facility's research profile names the pipeline as an outlet.