The see-saw gas prices saw an overall 3.5-cent increase in the United States last week, but a very slight drop locally, according to AAA’s Fuel Gauge Report.

In the Bucks and Montgomery counties, the average price for self-serve regular unleaded gasoline is $3.927 per gallon, which is .2 cents lower from a week ago, 7.9 cents higher than a month ago and 44.4 cents higher than a year ago.

This skewing of national prices started last week in California, the report states, when the average price for a gallon in that state hit $4.671. Low supplies, plus a power outage at an Exxon refinery prevented it from producing gas, caused that nearly 50-cent hike.

Crude oil prices, however, continues to drop as global demand weakens.

Locally, the cheapest prices for regular are:

• $3.84 at Vigilante Liberty, 1214 Bristol Pike
• $3.86 at C P Sunoco, 3340 Bristol Rd
• $3.86 at Fred Dimeo, 3585 Bristol Rd

If you spotted a better price, tell us in comments.