Horizon Oil Acquires 75% Stake in Exxon’s Thai Subsidiary / Latest / By mark Horizon Oil Ltd. is paying $30 million for the 75% stake in Exxon Mobil Exploration and Production Khorat Inc., plus an additional $7.5 million in contingency payments. Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Related