"The Gulf of Mexico is an area where such natural seepage occurs at a very high rate. Of the 200,000 metric tons of oil seepage that is thought to occur each year, about 150,000 metric tons escapes from the floor of the Gulf of Mexico."
150,000 / 365 = 411 metric tons a day
411 * 2,205 pounds per metric ton = 906,255 pounds
At 7 pounds per gallon: 906,255 pounds / 7 = 129,465 gallons a day naturally.
Ho hum.
Adding a third again as much isn’t exactly “ho hum”.