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Gulf Coast (PADD 3) Gas Prices — What You Need to Know

Gas prices on the Gulf Coast have climbed to $3.69 per gallon for regular unleaded, marking a jump of 10.2 cents over the past week. This price level sits above the national average and reflects the region's unique refinery-dependent supply chain and seasonal summer driving demand. The weekly increase suggests upward momentum, though Gulf Coast prices typically track closely with crude oil movements given the area's massive refining capacity.

At $3.69 per gallon, filling a typical 15-gallon tank will cost about $55.35, roughly $1.53 more than it would have cost a week ago. The Gulf Coast's diesel premium is notably wide at $1.40 per gallon above regular, reflecting tighter diesel supplies and stronger demand from commercial shipping along the Mississippi River and ports. This region's prices tend to be slightly above the national average due to Texas fuel taxes (20 cents per gallon state excise tax) and Louisiana's 20-cent excise tax, among the highest in the nation.

What Drives Gas Prices in Gulf Coast (PADD 3)?

The Gulf Coast refining corridor—stretching from Houston through the Louisiana coast—processes nearly half of America's crude oil, making local pipeline access and refinery utilization rates the primary price drivers for PADD 3. State fuel taxes in Texas (20 cents) and Louisiana (20 cents) are built into every gallon sold here, pushing prices higher than regions with lower state levies. Summer driving season demand, combined with federal Reid vapor pressure (RVP) blending rules that require cleaner-burning fuel in the warm months, increases production costs and limits supply flexibility.

From Crude Oil to the Pump

WTI crude is trading at $88.58 per barrel while Brent is at $96.12, and these benchmark prices typically reach Gulf Coast pumps within two to six weeks as refineries process new crude into finished gasoline. The $7.54 spread between Brent and WTI reflects global crude dynamics and can pressure Gulf Coast prices upward when Brent rallies, since many refineries blend imported crude into their feedstock. The recent 10-cent weekly jump suggests refineries have been working through higher-cost crude batches or facing operational constraints that reduce supply.

💡 Money-Saving Tip: Gulf Coast drivers should consider filling up on Monday or Tuesday mornings, when regional prices typically dip before the week's demand surge; apps like GasBuddy help identify the cheapest stations in real time across Houston, New Orleans, and other major metro areas. Where available, ethanol-blended E10 fuel is typically 3 to 5 cents cheaper per gallon and performs well in Gulf Coast summer heat, making it a smart savings choice for compatible vehicles.

Price Outlook for Gulf Coast (PADD 3)

With WTI holding near $88 and Brent at $96, crude prices appear relatively stable, suggesting the Gulf Coast may see prices plateau or decline modestly over the next two weeks unless tropical weather disrupts Gulf refinery operations. Watch the National Hurricane Center forecasts closely through August, as any storm surge affecting the refinery corridor could tighten supply and push prices higher before the end of summer.