Port Isabel Average Gas Price
| Regular | Mid-Grade | Premium | Diesel | E85 | |
|---|---|---|---|---|---|
| Month Ago Avg. | $3.05 | $3.51 | $3.85 | $3.93 | - |
Highest Recorded Average Gas Price In Port Isabel Year to Date
| Price | Date | |
|---|---|---|
| Diesel | $4.07 | 09/14/26 |
| Regular | $3.09 | 09/02/26 |
Top 10 Gas Stations & Cheap Fuel Prices in Port Isabel
Valero in Port Isabel (102 E. Queen Isabella Blvd.)
102 E. Queen Isabella Blvd., Port Isabel, Texas,
$4.03
Sep 23, 2026
0¢ Cashback
Valero in Port Isabel (102 E. Queen Isabella Blvd.)
102 E. Queen Isabella Blvd.Port IsabelTexas78578USA
Sunoco in Port Isabel (1685 TX-100)
1685 SH-100, Port Isabel, Texas,
$4.09
Sep 23, 2026
0¢ Cashback
Sunoco in Port Isabel (1685 TX-100)
1685 SH-100Port IsabelTexas78578USA
Murphy USA in Port Isabel (1405 Hwy 100)
1405 SH-100, Port Isabel, Texas,
$4.11
Sep 23, 2026
0¢ Cashback
Murphy USA in Port Isabel (1405 Hwy 100)
1405 SH-100Port IsabelTexas78578USA
Murphy USA in Port Isabel (1405 Hwy 100)
1405 Hwy 100, Port Isabel, Texas,
$4.80
Sep 23, 2026
0¢ Cashback
Murphy USA in Port Isabel (1405 Hwy 100)
1405 Hwy 100Port IsabelTexas78578US
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Gas Data Methodology
The fuel prices published in this guide are based on the results of research completed by Way.com’s data team. Using a mix of external and internal data, we analyzed millions of prices across U.S. ZIP codes and globally.