Gulf Coast · week of September 21, 2026
Gas prices in the Gulf Coast
Drivers across the Gulf Coast paid $3.97 a gallon for regular this week (September 21, 2026). That's −50.6¢ compared with the U.S. average and +12.0¢ from a week earlier. Diesel in the region: $6.18.
regional average
$3.972
EIA weekly survey
$3.972regional average
+12.0¢change in a week
+$1.26change in a year
$6.177diesel
Gas prices by state
| State | Regular | Price from | Diesel | Gas tax | With federal |
|---|---|---|---|---|---|
| Alabama | $3.972 | Gulf Coast | $6.177 | 31.0¢ | 49.4¢ |
| Arkansas | $3.972 | Gulf Coast | $6.177 | 25.0¢ | 43.4¢ |
| Louisiana | $3.972 | Gulf Coast | $6.177 | 20.9¢ | 39.3¢ |
| Mississippi | $3.972 | Gulf Coast | $6.177 | 24.4¢ | 42.8¢ |
| New Mexico | $3.972 | Gulf Coast | $6.177 | 18.9¢ | 37.3¢ |
| Texas | $3.929 | state survey | $6.177 | 20.0¢ | 38.4¢ |
Regular gas, weekly average · Gulf Coast
September 30, 2024: $2.695 · September 21, 2026: $3.972 · min $2.372 · max $3.989
Diesel, weekly average · Gulf Coast
September 30, 2024: $3.212 · September 21, 2026: $6.177 · min $3.097 · max $6.177