Both, large oil spills and medium sized oil spills (7-700 tonnes) are decreasing. Menu. The following table lists the largest oil spills in U.S. history. Oil spill, leakage of petroleum onto the surface of a large body of water. Updated February 11, 2017 | Infoplease Staff. Sustainability for All. … Oceanic oil spills became a major environmental problem in the 1960s, chiefly as a result of intensified petroleum exploration and production on continental shelves and the use of supertankers capable of transporting more than 500,000 metric tons of oil. The Gulf oil spill is officially the largest accidental spill in world history. Ten Largest Oil Spills in the U.S. BACKGROUND. As the name implies, an oil spill refers to any uncontrolled release of crude oil, gasoline, fuels, or other oil by-products into the environment.Oil spills can pollute land, air, or water. Spills can also wreak havoc on the economies of coastal communities by forcing the closure of fisheries, driving away tourists, or temporarily shutting down navigation routes. The Ixtoc I oil well exploded in the Gulf of Mexico in June 1979. Rank Date Cause Source Location Spill Volume; 1. A summary of the top 20 major spills that have occurred since the TORREY CANYON in 1967 is given below. Major oil spills are bad for the environment because they damage wildlife, marine ecosystems, and coastal environments. Ixtoc I oil well: 454,000 tons. The Atlantic Empress disaster killed 26 crew members and is the largest ship-based oil spill. It occurred in Prince William Sound, Alaska and spilled around 10.8 million gallons (40.8 million liters) and impacted 1,100 miles (1,609 km) of coast. The release of oil and chemicals into our coastal waterways is a major problem. Major Oil Spills . The oil spill caused by Saddam Hussein’s military is the largest oil spill in history. In 1991, Iraqi President Saddam Hussein asserted that the nation of Kuwait was historically Iraqi territory and moved his army to take control of the Kuwaiti oil fields. The date of the spill, circumstances surrounding the spill, and amount of oil spilled are also given. Home. It is of note that 19 of the 20 largest spills recorded occurred before the year 2000. It’s one of the 10 largest onshore oil spills in the country since 2010, when an Enbridge pipeline released more than 800,000 gallons of oil in Michigan, according to the Star Tribune. Included in the trade statistics is the trade of LNG, LPG, naphtha, gasoline, jet fuel, kerosene, light oil, heavy fuel oil and others, according to the source ( UNCTAD ). br/>To learn more about large oil spills visit NOAA's Office of Response and Restoration. 2. For example, the Exxon-Valdez oil spill in 1989 was the largest spill in United States history. This happened as the worldwide trade of petroleum and gas products increased. 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