Gas prices are four cents lower in Western Pennsylvania this week at $3.766 per gallon, according to AAA East Central’s Gas Price Report.

The average price of unleaded self-serve gasoline in Beaver County is $3.768.

The national average for a gallon of gas fell five cents over the last week to $3.36. The main reason is the price of oil, which fell into the mid $70s per barrel, nearly $5 cheaper than earlier this month. Today’s national average of $3.36 is 14 cents less than a month ago and 24 cents less than a year ago.

According to new data from the Energy Information Administration (EIA), gas demand increased slightly from 8.27 million barrels per day to 8.91 million barrels per day last week. Meanwhile, total domestic gasoline stocks decreased by 1.8 million barrels to 240.1 million barrels last week. However, decreasing oil prices have contributed to pushing pump prices lower.

Crude prices have declined over the last few weeks due to the strengthening of the dollar and market concerns about increasing domestic oil inventories. EIA reported that total domestic commercial crude inventories increased substantially by 7.6 million barrels to 479 million barrels last week.