Supply Explorer
Rack market

Madison, WI

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

OPIS rack code 420 Gasoline & diesel Biodiesel Ethanol
terminals
8
pipeline systems delivering
1
refineries in market
0
refineries supplying market
2
people in the trade area
1,037,594
gal/day gasoline · estimated demand
1,356,854
gal/day diesel · estimated demand
499,558

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
CHS Petroleum Terminal-McFarland T-39-WI-3065 McFarland, WI West Shore Pipeline
CITGO - McFarland T-39-WI-3067 McFarland, WI West Shore Pipeline
Flint Hills Resources Madison T-39-WI-3072 McFarland, WI West Shore Pipeline
Sunoco Midstream LLC T-39-WI-3083 McFarland, WI West Shore Pipeline
US Venture - Madison T-39-WI-3088 Madison, WI West Shore Pipeline
US Venture. - Madison T-39-WI-3079 McFarland, WI West Shore Pipeline
US Venture. - McFarland T-39-WI-3085 McFarland, WI West Shore Pipeline
West Shore Pipeline Company - McFarland T-72-WI-0002 McFarland, WI West Shore 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
West Shore Pipeline 8 1 0 2

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; 2 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. No running refinery is located in this market (nearest rack market, within 50 miles).
Refinery Location Via Link
BP Whiting Refinery Whiting, IN West Shore Pipeline per research
CITGO Lemont Refinery Lemont, IL West Shore Pipeline per research

Trade area

people in the trade area · 2025 estimate
1,037,594
rank of 422 rack markets by people
#104
gallons of gasoline a day · estimate, 2025
1,356,854
gallons of diesel a day · estimate, 2025
499,558
counties wholly in this market
1
counties shared with other markets
16
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
Dane County WI 100% 590,375 642,297 159,887 590,375 6
Rock County WI 64% 106,509 126,318 62,896 166,472 28
Sauk County WI 87% 58,254 98,781 34,846 66,652 42
Jefferson County WI 61% 52,483 79,526 27,163 86,505 27
Columbia County WI 80% 46,610 98,344 58,844 58,132 30
Walworth County WI 25% 26,479 34,162 6,447 106,127 46
Green County WI 71% 26,386 34,570 9,459 37,227 29
Dodge County WI 26% 22,925 34,077 11,143 89,097 41
Monroe County WI 38% 17,865 36,179 34,600 46,572 91
Iowa County WI 74% 17,645 40,043 10,569 23,951 42
Juneau County WI 49% 12,935 34,182 49,010 26,649 74
Vernon County WI 40% 12,505 20,869 6,083 31,443 85
Adams County WI 51% 11,146 14,959 4,685 21,752 69
Stephenson County IL 25% 10,814 10,501 3,162 43,220 51
Richland County WI 63% 10,658 21,236 7,180 17,036 62
Marquette County WI 44% 7,076 15,408 8,952 15,927 55
Lafayette County WI 40% 6,934 15,403 4,633 17,478 49

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 a supply 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. The figure shown is the lowest route that starts where product enters the pipeline system; where a second pipeline is needed to reach here, both are costed. 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 · product adder
5.72
¢/gal · line-haul tariff · published
3.45
¢/gal · carrying cost · calculated
0.45
¢/gal · pipeline loss · estimate
0.31
¢/gal · terminaling · estimate
1.50
days financed
8.9

Route used: from Lemont on West Shore Pipeline to Madison (FERC No. 71.61.0 item Table of Rates).

How this adder is worked, line by line
Line ¢/gal Basis Source or working
Line-haul tariff 3.455 published West Shore Pipeline FERC No. 71.61.0 item Table of Rates: Lemont (Will County), IL → Madison (Dane County), WI, 145.10 ¢/bbl
Carrying cost 0.449 calculated $3.120000/gal × 5.9200% ÷ 365 × 8.881 days (1.381 in transit, 2.50 waiting on the cycle, 5.00 in terminal inventory); transit estimated: 133 pipeline miles at 4.0 mph (general estimate)
Pipeline loss 0.312 estimate flat estimate $0.0031/gal, applied 1 time
Terminaling 1.500 estimate Flat estimate: no fee on file for this terminal
Product adder 5.716 Sum of the lines above, over the origin spot price

Every published route, lowest adder first (2 of 2). Origins are priced at the same index here. "Origin must be cheaper by" is how far below the price at the origin of the route used above 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
Lemont (Will County), IL West Shore Pipeline Madison (Dane County), WI 8 terminals 3.45 0.45 0.31 1.50 5.72 8.9 — FERC No. 71.61.0 item Table of Rates
East Chicago (Lake County), IN West Shore Pipeline Madison (Dane County), WI 8 terminals 3.52 0.46 0.31 1.50 5.79 9.1 0.08 FERC No. 71.61.0 item Table of Rates

Diesel: product adder

¢/gal · product adder
6.14
¢/gal · line-haul tariff · published
3.45
¢/gal · carrying cost · calculated
0.70
¢/gal · pipeline loss · estimate
0.49
¢/gal · terminaling · estimate
1.50
days financed
8.9

Route used: from Lemont on West Shore Pipeline to Madison (FERC No. 71.61.0 item Table of Rates).

How this adder is worked, line by line
Line ¢/gal Basis Source or working
Line-haul tariff 3.455 published West Shore Pipeline FERC No. 71.61.0 item Table of Rates: Lemont (Will County), IL → Madison (Dane County), WI, 145.10 ¢/bbl
Carrying cost 0.702 calculated $4.870000/gal × 5.9200% ÷ 365 × 8.881 days (1.381 in transit, 2.50 waiting on the cycle, 5.00 in terminal inventory); transit estimated: 133 pipeline miles at 4.0 mph (general estimate)
Pipeline loss 0.487 estimate flat estimate $0.0049/gal, applied 1 time
Terminaling 1.500 estimate Flat estimate: no fee on file for this terminal
Product adder 6.143 Sum of the lines above, over the origin spot price

Every published route, lowest adder first (2 of 2). Origins are priced at the same index here. "Origin must be cheaper by" is how far below the price at the origin of the route used above 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
Lemont (Will County), IL West Shore Pipeline Madison (Dane County), WI 8 terminals 3.45 0.70 0.49 1.50 6.14 8.9 — FERC No. 71.61.0 item Table of Rates
East Chicago (Lake County), IN West Shore Pipeline Madison (Dane County), WI 8 terminals 3.52 0.72 0.49 1.50 6.22 9.1 0.08 FERC No. 71.61.0 item Table of Rates
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, 2026-10-26. Diesel: OilPriceAPI HEATING_OIL_USD, 2026-10-26. These are the New York Harbor futures benchmarks, not a Gulf Coast price.
  • Interest rate: SOFR 3.92% (2026-10-23) + 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 (once for each pipeline on a two-pipeline route), 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, and tariffs that state no loss term.
  • Terminaling: the carrier's terminal charge where its tariff states one (marked *), otherwise a flat 1.5¢/gal estimate.
  • Which route sets the figure: the lowest one that starts at a supply origin. On Colonial that is Houston. A rate that starts part-way along a pipeline, or at a secondary origin, stays in the table but does not set the figure. Where a rate starts at a point another carrier delivers to, the first carrier's lowest rate into that point is added, with its loss and time in the pipe; terminaling is charged once. The same is done where one pipeline files the movement as two rates. Which origins are treated this way is our own review of each system, not a statement in a tariff.
  • 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 Lemont on West Shore Pipeline
3.46
¢/gal · cheapest diesel · from Lemont on West Shore Pipeline
3.46
¢/gal · cheapest jet fuel · from Lemont on West Shore Pipeline
3.46
Published line-haul rates into a terminal here, cheapest first (2 of 2 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 6 conditional tariff fees listed on each pipeline page.
Origin Pipeline Delivery point Product ¢/bbl ¢/gal Refineries at the origin Tariff
Lemont (Will County), IL West Shore Pipeline Madison (Dane County), WI gasoline, distillate, jet fuel 145.10 3.46 CITGO Lemont Refinery FERC No. 71.61.0 item Table of Rates
East Chicago (Lake County), IN West Shore Pipeline Madison (Dane County), WI gasoline, distillate, jet fuel 147.77 3.52 BP Whiting Refinery FERC No. 71.61.0 item Table of Rates

Supply resilience

pipeline supply
One pipeline
pipeline systems delivering
1
terminals on two or more pipelines
0
terminals with no pipeline tariff
0

One pipeline system delivers here: West Shore Pipeline. An outage on it leaves the market to truck, rail or water.

If a pipeline system goes down

Pipeline system Terminals it reaches here With no other pipeline Which
West Shore Pipeline 8 8 CHS Petroleum Terminal-McFarland; CITGO - McFarland; Flint Hills Resources Madison; Sunoco Midstream LLC; US Venture - Madison; US Venture. - Madison; US Venture. - McFarland; West Shore Pipeline Company - McFarland

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
-5.61
¢/gal over Chicago ethanol · highest
-5.56

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
US Venture. - Madison -5.61 truck ADM Clinton IA (Clinton, IA) 115
CITGO - McFarland -5.60 truck ADM Clinton IA (Clinton, IA) 115
West Shore Pipeline Company - McFarland -5.59 truck ADM Clinton IA (Clinton, IA) 115
US Venture - Madison -5.59 truck ADM Clinton IA (Clinton, IA) 115
Flint Hills Resources Madison -5.59 truck ADM Clinton IA (Clinton, IA) 115
US Venture. - McFarland -5.58 truck ADM Clinton IA (Clinton, IA) 115
CHS Petroleum Terminal-McFarland -5.56 truck ADM Clinton IA (Clinton, IA) 116
Sunoco Midstream LLC -5.56 truck ADM Clinton IA (Clinton, IA) 116

Nearby rack markets

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

Rack market Miles Terminals Pipelines
Waupun, WI 56 1 —
Rockford, IL 58 5 1
Milwaukee, WI 66 11 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.