Texas Weekly Gas Price Update

September 21, 2026

Average gasoline prices in Texas have risen 10.0 cents per gallon in the last week, averaging $3.93/g today, according to GasBuddy’s survey of 13,114 stations in Texas. Prices in Texas are 30.9 cents per gallon higher than a month ago and stand $1.23/g higher than a year ago. The national average price of diesel has increased 30.7 cents compared to a week ago and stands at $6.490 per gallon.

According to GasBuddy price reports, the cheapest station in Texas was priced at $3.39/g yesterday while the most expensive was $5.94/g, a difference of $2.55/g. The lowest price in the state yesterday was $3.39/g while the highest was $5.94/g, a difference of $2.55/g.

The national average price of gasoline has risen 18.5 cents per gallon in the last week, averaging $4.44/g today. The national average is up 34.4 cents per gallon from a month ago and stands $1.30/g higher than a year ago, according to GasBuddy data compiled from more than 11 million weekly price reports covering over 150,000 gas stations across the country.

Historical gasoline prices in Texas and the national average going back five years:
September 21, 2025: $2.70/g (U.S. Average: $3.14/g)
September 21, 2024: $2.74/g (U.S. Average: $3.19/g)
September 21, 2023: $3.36/g (U.S. Average: $3.83/g)
September 21, 2022: $3.13/g (U.S. Average: $3.67/g)
September 21, 2021: $2.82/g (U.S. Average: $3.19/g)

Neighboring areas and their current gas prices:
Midland Odessa- $4.06/g, up 17.6 cents per gallon from last week’s $3.88/g.
San Antonio- $3.90/g, up 5.9 cents per gallon from last week’s $3.84/g.
Austin- $3.90/g, up 6.4 cents per gallon from last week’s $3.84/g.

“Average gasoline prices rose in virtually every state over the last week, with 45 states seeing increases of more than 3 cents per gallon, led by the Great Lakes region where refinery issues sent Michigan, Indiana, Illinois, Ohio, and Wisconsin all up more than 30 cents per gallon,” said Patrick De Haan, head of petroleum analysis at GasBuddy. “Diesel rose in every state, with five states seeing increases exceeding 50 cents per gallon, as continued strikes on Russian oil refineries tighten global diesel supply- a pressure further amplified in the Great Lakes by regional refinery issues. Any broader directional change will depend heavily on overseas developments, and with new Houthi attacks and fresh U.S.-Iran escalations, the outlook remains deeply uncertain.”

GasBuddy®, a PDI Technologies company, is North America’s trusted fuel savings platform, helping consumers fuel up for less for over 25 years. With over 100 million app downloads, GasBuddy delivers real-time prices at 150,000+ stations and tangible savings through Pay with GasBuddy+™. It is the most authoritative source of station-level fuel pricing data, updating averages 288 times daily from the broadest mix of inputs— spotter reports, direct station integrations, and transactional data.

SOURCE GasBuddy