Stater Bros. Markets, the largest locally owned Supermarket Chain in Southern California, has signed a multi-year agreement with its online home delivery service partner WhyRunOut.Com to expand the delivery service to 12 additional marketing areas served by Stater Bros. Supermarkets.Between October 2000 and January 2001, Stater Bros. will expand the WhyRunOut.Com home delivery service to include a total of four Orange County Stater Bros. Supermarkets and three Northern San Diego County Stater Bros. Supermarkets. During this same time period, the service will be introduced to Stater Bros. customers in Riverside County (from four Stater Bros. Supermarkets), San Bernardino County (from two Stater Bros. Supermarkets), and Los Angeles County (from two Stater Bros. Supermarkets).Stater Bros. first began testing the WhyRunOut.Com home delivery service in May 2000 from a South Orange County Stater Bros. Supermarket. In July 2000, the delivery service was expanded to include two Northern San Diego County Stater Bros. Supermarkets. With the addition of 12 Supermarket locations, Stater Bros. will soon be selling to online customers from 15 of its Supermarket locations.Stater Bros.' customers can currently access the WhyRunOut.Com home delivery service from either the Stater Bros. web site (