oil, necessary for the manufacture of gasoline, Diesel oil and navy fuel:
The Dutch East Indies and Burmah: Too far away to serve as a source of supply in the present shortage of tank steamers.
Persia: Remote, and on the Mediterranean route. Submarines have destroyed many tankers on this route. Production small.
Russian Fields: Available only to the Russian Allies.
Roumania: In German hands.
Galicia: In Austrian hands.
United States: Practically the only source of crude oil and gasoline supply for our allies and our own forces.
But see annexed report of Hearing before Senate Committee, No. 1, page 32. The Department of the Interior gives the following figures:
| Year | Consumption | Percentage Increase | Production | Drawn from Stock |
| 1914 | 247,015,396 | |||
| 1915 | 276,399,918 | 12 | 281,000,000 | None |
| 1916 | 312,000,000 | 13 | 296,000,000 | 18,500,000 |
| 1917 | 353,000,000 | 13 | 286,990,000 | 67,000,000 |
Note that the Interior Department calculates a shortage of 67,000,000 barrels of petroleum in the United States for purely peace purposes for 1917. Elsewhere in the Report of the Hearing, note statement by the Bureau of Mines that it calculates an additional shortage of 20,000,000 for war purposes. Since this estimate it has been determined to build and operate from 35,000 to
