Coastal Energy Company (Coastal) is an international oil and gas exploration and development company with operations in offshore Thailand and Malaysia. The Company holds a 100% working interest in Blocks G5/43 and G5/50 in the Gulf of Thailand, as well as varying interests onshore northeast Thailand, including over 13.7% interest in the Phu Horm gas field. The combined area of the blocks is approximately 4,926 square kilometers (1.22 million acres), which is across the Songkhla, Nakhon and Ko Kra basins. The Company holds a net of over 13.7% working interest in the Hess-operated Sinphuhorm gas field located in northeastern Thailand. The Company’s KBM Cluster fields are located within 20 kilometers of each other in a water depth of 60 meters.