Between December 1941 and August 1945, the United States and its allies consumed about how many barrels of oil?

• A. 7 billion barrels
• B. 5 billion barrels
• C. 9 billion barrels
• D. 12 billion barrels

Answer: (A)

Fuel use in WWII grew to enormous levels because ships, aircraft, tanks, trains, and factories all ran on petroleum. The period from December 1941 to August 1945 covers the major wartime years, so the Allied effort demanded a massive daily burn of oil to keep combat and logistics moving. If you estimate roughly five million barrels a day and multiply by about 1,370 days, you get around 6.8 to 7.0 billion barrels. That aligns with the general scale historians assign to Allied oil consumption over those years, making about seven billion the best estimate. The other options would require daily usage figures that don’t fit the sustained wartime demand.