Gas prices rose to over $4 in Los Angeles County for the first time since Nov. 6.
Average prices increased to an average of $4.06 in L.A. County, up from $3.62 a month ago, but still below the highest recorded average price of $4.70 on Oct. 9, 2012, according to AAA.
In Pacific Palisades, the lowest price for regular gasoline as of Monday was $4.06 at the 76 Station at 15400 Sunset Blvd., according to Gas Buddy.
The Los Angeles County average price is the highest in the state and the only region where it is above $4. The lowest average price is $3.712 in Modesto.
The increasing prices are the result of high oil prices, Middle East tension, maintenance at refineries that reduces supplies and investors shifting their money into the gasoline market "earlier and earlier," according to Jeffrey Spring of the Automobile Club of Southern California.
City News Service contributed to this report.