Below is a list of Oil Trough AR zip codes. For your research we have also included Oil Trough Area Code, Time Zone, UTC and the local Independence County FIPS Code. Each Oil Trough Arkansas zip code has a center Longitude / Latitude point (the Oil Trough center is -91.462997436523 / 35.629100799561). For your convenience we have also indicated if that zip code in Oil Trough observes Daylight Savings time.