The Alaska corporation commonly known as Alyeska Pipeline Company was founded in 1970 to design, construct, operate and maintain a pipeline to transport oil from the fields on the North Slope of Alaska where oil was discovered in 1968 to an ice-free deep-water port in Valdez, Alaska. The pipeline was built between March 1975 and June 1977, running from the North Slope fields at Prudhoe Bay to the Marine Terminal at Valdez on Prince William Sound. Alyeska then went on to operate and maintain TAPS. The first oil flowed into the pipeline on June 20, 1977, and the first tanker load departed from Valdez on August 1, 1977.