These guys would have it taken care of in their lunch break...
Top 10 worst oil spills (MSNBC)Many of us think of the Exxon Valdez oil spill as a particularly bad one, but with about 42,800 tons of oil spilled, it doesn't rank as one of the 10 worst ever.
According to this one the Ixtoc 1 was far worse.
Oil Spills and Disasters1979 June 3, Gulf of Mexico: exploratory oil well Ixtoc 1 blew out, spilling an estimated 140 million gallons of crude oil into the open sea. Although it is one of the largest known oil spills, it had a low environmental impact.
More info on the environmental impact of Ixtoc 1.
Gulf Oil Spill a "Dead Zone in the Making"?Infauna, or small organisms such as clams and tubeworms that live in ocean sediments, are vital food sources for shorebirds and other coastal animals.
After the 1979 Ixtoc oil spill in the Gulf of Mexico, the area's infauna were reduced by up to 90 percent, Tunnell said—a potential reason many bird species left the area in the wake of the nine-month-long spill.
However, there may be a bright side: Organisms at the bottom of the food chain reproduce more rapidly than bigger animals, Tunnell pointed out by email. After the Ixtoc spill, infauna returned to pre-spill levels within about a year.
Now, as far as how much oil is leaking from Deepwater Horizon...
Oil Spills and Disasters2010 April 24, Gulf of Mexico: The Deepwater Horizon, a semi-submersible drilling rig, sank on April 22, after an April 20th explosion on the vessel. ... In addition, U.S. Coast Guard investigators discovered a leak in the wellhead itself. As much as 25,000 barrels (1,050,000 gallons) of oil per day were leaking into the water, threatening wildlife along the Louisiana Coast.
So even if this estimate of 1.05 million gallons per day is correct, and most people think that's absurd, in the 40 days since the explosion that would be 40 million gallons. That still doesn't get it into the top 10.