Walt Zwirko / WFAA.com

Prices have dropped well below $3.80 along Highway 380 in Denton.

IRVING — The fall in the price of crude oil is reflected with a drop in the average retail cost of gasoline in Texas this week.

AAA Texas on Friday reported a 7-cent decline in gasoline prices, settling at an average $3.92 per gallon.

The average price was lower in North Texas: $3.89 in Dallas, $3.88 in Fort Worth.

AAA Texas says Corpus Christi had the least expensive gasoline statewide this week, at $3.86 per gallon.

The most expensive gasoline average in Texas could be found in the Austin-San Marcos areas and El Paso, at $3.93.

Association spokesman Dan Ronan says a drop in crude oil prices usually takes a few weeks to catch up at gas stations. Ronan says if oil prices continue downward, drivers could see additional relief at the pump.

Nationally, the average price for self-serve regular slipped 9 cents, to reach $4.02.