1969 Santa Barbara oil spill the platform since Unocal sold its Santa Barbara Channel operations in 1996. 1969 Santa Barbara oil spill The Santa Barbara oil spill occurred in January and February 1969 in the Santa Barbara Channel, near the city of Santa Barbara in Southern California. It was the largest oil spill in United States waters by that time, and now ranks third after the 2010 Deepwater Horizon and 1989 Exxon Valdez spills. It remains the largest oil spill to have occurred in the waters off California. The source of the spill was a blow-out on January 28, 1969, from the coast on Union
Ashland oil spill Ashland oil spill The Ashland oil spill was an oil spill that occurred on January 2, 1988 into the Monongahela River near the town of Jefferson Hills, Pennsylvania, approximately 20 miles upstream from the city of Pittsburgh. Ashland Oil Company Inc. (currently known as Ashland Inc.) owned a facility near the Monongahela River in Jefferson, PA (now Jefferson Hills). On January 2, 1988, a four-million gallon tank was used for the first time after being dismantled (from an Ohio location) and rebuilt in Pennsylvania. It was this tank, holding approximately 3.5 million gallons of diesel oil, that failed and collapsed,