SK Energy secures 20 pct stake in Viet Nam oil field

South Korea's SK Energy said on Monday it had secured a 20% stake in an oil field in Viet Nam currently under exploration.

"We secured the stake in late May, but since the oil field is in the very initial stages of exploration, we don't have any details on estimated or proven reserves," said SK Energy's spokeswoman.

Shares of SK Energy rose 1.75%, trading at 116,500 won as of 0131 GMT, outperforming the wider market's 0.36% loss.

Australia's Santos Ltd owns the majority 50% stake in the 123 oil field on the east coast of Viet Nam, and the remaining 30% is owned by state-run Petrovietnam, SK Energy said.

SK Energy is the country's top refiner with a capacity of running 1.115 million barrels per day of crude.