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UK todayPetrol174.9pDiesel199.9p6,537 forecourtsUS this weekRegular$4.47Diesel$6.38EIA average

Gas prices in Louisiana

Regular gas costs an average of $3.92 a gallon in Louisiana, and diesel $5.96, based on the Gulf Coast regional figure for the week of September 28, 2026. That's 55 cents below the national average.

EIA doesn't publish a separate average for Louisiana, so this is the Gulf Coast average, which covers Louisiana. Prices at individual stations vary.

FuelLouisianaU.S. average
Regular$3.92$4.47
Diesel$5.96$6.38

What gas costs in Louisiana

Filling a 15-gallon tank with regular costs about $58.80. A 300-mile road trip in a car that gets 25 mpg uses 12 gallons, which comes to about $47.04.

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Frequently asked questions

How much is gas in Louisiana right now?

Regular gas averages $3.92 a gallon based on the Gulf Coast regional figure for the week of September 28, 2026.

How much is diesel in Louisiana?

Diesel averages $5.96 a gallon based on the Gulf Coast figure.

How much does it cost to fill up in Louisiana?

A 15-gallon tank of regular costs about $58.80 at the average price.

Where do these prices come from?

The U.S. Energy Information Administration surveys retail gas stations every week and publishes averages for the nation, regions and nine states every Monday.

Gas prices in Gulf Coast over time

Since 6 October 2025, the typical price of regular gas has risen by 121 cents.

$1.92$3.09$4.27$5.45$6.63NovJanMarMayJulSept
RegularDiesel

Weekly averages from the U.S. Energy Information Administration. See national price history.

Gas prices in other states