LOS ANGELES—The average prices of a gallon of self-serve regular gasoline in Los Angeles and Orange counties rose Oct. 5 to their highest amounts since Oct. 23, 2012, with further increases expected. The Los Angeles County average price rose three-tenths of a cent for the second consecutive day to $4.422, according to figures from the AAA and the Oil Price Information Service. It is 1.3 cents more than one week ago, 1.8 cents higher than one month ago, and $1.223 greater than one year ago. The average price has risen $1.19 since the start of the year because of higher oil prices and increased demand for gasoline following the end of pandemic-related restrictions. The Orange County average price rose nine-tenths of a cent to $4.387, one day after dropping one-tenth of a cent. It is 1.9 cents more than one week ago, 1.6 cents higher than one month ago and …