Source : Pacific Marine Review, Volume 25, February 1928. The "Lamp," organ of the Standard Oil Company, reports that on December 1, 1927, there were 1173 tankers afloat throughout the world, with an aggregate of 9,271,581 deadweight tons. Of this number 402 vessels of 3,756,076 tons were of American register. Of the present world's fleet about 14 percentare motor driven, compared with 3 per cent in 1913. Only 30 of the present American vessels, with 173,000 tonnage, are motor driven. The Standard Oil Company on December 1 had in operation 96 vessels, aggregating 1,025,115 deadweight tons, of which 38 vessels of 481,065 tons are under the American flag.