The average price of a gallon of self-serve regular  gasoline in the Inland Empire dropped today for the sixth consecutive day, falling a half-cent to $3.973.

   The average price in Riverside and San Bernardino counties is 3.8 cents less than one week ago and 14.7 cents lower than one year ago but 13.9 cents more than one month ago, according to figures from the AAA and Oil Price  Information Service.

   The falling prices follow a 10-day streak of rising prices.

   The dropping prices are the result of a resolution of supply issues that had caused the latest increases in prices, according to Marie Montgomery of  the Automobile Club of Southern California.