Jurong Island Underground Oil Storage is the first underground oil storage in Southeast Asia built by Singapore on Jurong Island. This oil storage costs S $ 950 million and is located 150 meters below the sea floor and below the surface. . The project is mainly divided into the first and second development stages. After all development, it can save 60 hectares of land area and can store 2.77 million cubic meters or 17.8 million barrels of oil. The initial stage of Jurong Island's underground oil storage was constructed by Japan's Sato Kogyo at a cost of 50 million yuan, including two "big wells" 130 meters deep underground-access shafts and Two "start-up galleries" near the bottom of the shaft (entering and exiting the shaft to the underground tunnel).