Delta Liquid Energy will work with you to create a residential, commercial, industrial, bulk or agricultural propane supply plan to meet your business or personal LPG needs. DLE’s nine bulk plants, along with two rail facilities and a RV specialty shop, serve the following California Counties: Monterey, San Luis Obispo, Santa Barbara, Ventura, Fresno, Kings, Tulare, Kern, Los Angeles, Orange, Riverside, and San Bernardino.