Supply Explorer
Rack market

Convent/Garyville, LA

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

OPIS rack code 623 Gasoline & diesel
terminals
6
pipeline systems delivering
1
refineries in market
3
refineries supplying market
13
people in the trade area
560,330
gal/day gasoline · estimated demand
742,566
gal/day diesel · estimated demand
267,275

Terminals in this market

The racks that post prices in this market. Pipelines = systems with a tariff delivery point at the terminal.
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Terminal TCN Location Delivered by
Equilon Enterprises LLC T-72-LA-2361 Covent, LA Inland Waterways
Garyville Refining Logistics T-72-LA-2418 Garyville, LA no pipeline tariff on file
IMTT Avondale & St Rose T-72-LA-2377 Saint Rose, LA no pipeline tariff on file
Marathon Oil Garyville T-72-LA-2363 Garyville, LA no pipeline tariff on file
Mt. Airy Terminal T-72-LA-2423 Mt.Airy, LA no pipeline tariff on file
Valero Refining - New Orleans T-72-LA-2408 Norco, LA no pipeline tariff on file

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
Inland Waterways 1 1 3 13

Refineries that can supply this market

Running refineries that can reach a terminal here by published route, including across connecting carriers, confirmed links first. 3 are confirmed or named in a tariff; 10 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. Located in this market (nearest rack market, within 50 miles): Marathon Garyville Refinery; Valero St. Charles Refinery (Norco Refinery); Shell Norco Manufacturing Complex (Norco Refinery).
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Refinery Location Via Link
Marathon Garyville Refinery Garyville, LA Inland Waterways named in a tariff
Shell Norco Manufacturing Complex (Norco Refinery) Norco, LA Inland Waterways named in a tariff
Valero St. Charles Refinery (Norco Refinery) Norco, LA Inland Waterways named in a tariff
Chalmette Refinery Chalmette, LA Inland Waterways per research
Ergon Refining Vicksburg Refinery Vicksburg, MS Inland Waterways per research
ExxonMobil Baton Rouge Refinery Baton Rouge, LA Inland Waterways per research
Flint Hills Resources Pine Bend Refinery Saint Paul, MN Inland Waterways per research
Krotz Springs Refinery Krotz Springs, LA Inland Waterways per research
Phillips 66 Lake Charles Refinery (Lake Charles Manufacturing Complex) Westlake, LA Inland Waterways per research
Placid Refining Company Port Allen Refinery Port Allen, LA Inland Waterways per research
Valero Memphis Refinery Memphis, TN Inland Waterways per research
Valero Meraux Refinery Meraux, LA Inland Waterways per research
Wood River Refinery Wood River, IL Inland Waterways per research

Trade area

people in the trade area · 2025 estimate
560,330
rank of 422 rack markets by people
#192
gallons of gasoline a day · estimate, 2025
742,566
gallons of diesel a day · estimate, 2025
267,275
counties wholly in this market
0
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.
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County State Share here People counted here Gasoline gal/day Diesel gal/day County population Miles
Jefferson Parish LA 21% 88,437 81,437 24,162 431,398 43
St. Tammany Parish LA 28% 78,988 104,116 39,866 279,108 43
Livingston Parish LA 41% 64,262 82,737 32,809 155,036 31
Tangipahoa Parish LA 38% 53,697 76,450 31,828 141,346 42
Ascension Parish LA 36% 48,867 64,304 23,545 135,105 26
Terrebonne Parish LA 42% 44,061 44,663 10,919 104,163 52
Lafourche Parish LA 40% 37,982 47,036 11,702 95,505 38
St. John the Baptist Parish LA 91% 36,183 67,234 28,517 39,875 8
St. Charles Parish LA 59% 29,927 53,142 19,451 50,586 13
St. Mary Parish LA 35% 16,354 22,508 5,549 46,552 63
St. James Parish LA 83% 15,684 38,099 13,170 18,938 16
Washington Parish LA 28% 12,699 11,036 2,874 44,937 64
Assumption Parish LA 56% 11,033 14,901 3,656 19,720 34
Hancock County MS 20% 9,173 16,474 10,569 46,873 67
Pike County MS 23% 9,074 13,564 7,334 38,712 80
St. Helena Parish LA 36% 3,917 4,869 1,327 10,758 56

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

No published pipeline rate into a terminal here is on file yet. Markets supplied by truck, rail or water have no tariff to read.

Supply resilience

pipeline supply
One pipeline
pipeline systems delivering
1
terminals on two or more pipelines
0
terminals with no pipeline tariff
5

One pipeline system delivers here: Inland Waterways. 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
Inland Waterways 1 1 Equilon Enterprises LLC

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
+17.43
¢/gal over Chicago ethanol · highest
+17.92

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
Equilon Enterprises LLC +17.43 rail Arkalon Ethanol LLC (Liberal, KS) 1,039
Garyville Refining Logistics +17.43 rail Arkalon Ethanol LLC (Liberal, KS) 1,043
Mt. Airy Terminal +17.43 rail Arkalon Ethanol LLC (Liberal, KS) 1,041
Marathon Oil Garyville +17.91 rail Arkalon Ethanol LLC (Liberal, KS) 1,052
Valero Refining - New Orleans +17.92 rail Arkalon Ethanol LLC (Liberal, KS) 1,060
IMTT Avondale & St Rose +17.92 rail Arkalon Ethanol LLC (Liberal, KS) 1,067

Nearby rack markets

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

Rack market Miles Terminals Pipelines
New Orleans, LA 27 4 1
Chalmette, LA 35 3 —
Baton Rouge, LA 44 4 2

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.