that. 42, 000 gallons is 1, 000 barrels. (1 barrel is 42 US gallons.) So, we're now talking about 5000 barrels of oil/day. Remember the Exxon Valdez ? The EV carried, get this, up to 1.48 million barrels of oil. It spilled 10.8 million gallons-- 257, 143 barrels. We will call this