The Exxon Valdez oil tanker ran aground in Prince William Sound, Alaska, 25 years ago on March, 24, 1989. Some 10.8 million gallons of oil leaked into the southeast Alaska estuary in what, for 20 years, was the worst oil spill in U.S. history. As a result of the grounding and spill new regulations were imposed on the oil industry, but oil spills have occurred with a horrific regularity. The Macondo well explosion in April 2010 killed 11 workers on an offshore platform in the Gulf of Mexico. The resulting BP Deepwater Horizon oil Spill leaked 210 million gallons of oil, nearly 20 times the amount of oil of the Exxon Valdez. Since then four oil pipelines have burst in the United States pouring oil into the Kalamazoo and Yellowstone rivers, a neighborhood in Mayflower, Arkansas, and a wheat field in North Dakota. Trains with cars full of oil derailed and exploded in Quebec killing as many as 47 people. A train full of oil derailed and spilled in North Dakota Dec. 30, 2013. The Russian State oil company Gazprom, which has left thousands of Siberian acres and wetlands covered in oil, is drilling oil wells in the Russian Arctic. Multinational corporation Shell has secured permits for drilling in the Alaskan Arctic. An Arctic oil spill is only a matter of time as these companies are not capable of avoiding disaster.