Unocal Corporation announced that an exploration well on the Arthit project in the Gulf of Thailand has discovered natural gas and condensate. The Arthit-15-1X discovery well tested at a combined daily rate of 41 million cubic feet and 1,657 barrels of condensate from five zones. The well confirmed net pay of 462 feet in 35 gas-bearing zones. Located on block 15A in the Gulf of Thailand, the discovery well is 21 miles northeast of the Bongkot field, which is operated by PTT Exploration and Production Public Company Limited (PTTEP). Unocal Thailand, Ltd., holds a minimum sixteen percent working interest in the prospect. PTTEP is operator and holds an eighty percent working interest. MOECO Thailand Co., Ltd., holds the remaining four percent interest.