Q. how many gallons of oil was spilled during the exxon valdez?

The Exxon Valdez spilled approximately 11 million gallons of oil.  For comparison, the Gulf of Mexico oil spill is estimated to be releasing 210,000 gallons per day.  Over 30 days, that would be around 6,300,000 gallons, so in 2 months, that spill will surpass the Valdez spill.