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A total of 119 heavy-oil fields are located in the Middle and Far East and Oceania, in 19 countries. Of these, 12 have ultimate recoveries of more than 500 million barrels, and nine of more than 1000 million barrels. About 97% of the total resource of 120,000 million barrels is found in the Middle East. Twelve giant fields account for 95% of the total oil. An estimated 25.7 billion barrels remains to be discovered. Numerous bitumen deposits are found throughout the area. These are in the form of rock asphalt, which has been quarried in many places, and seepages. None of the bitumen deposits is large enough to serve as a source of oil, but many are or have been used to obtain road asphalt.

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