75 years ago today, on October 6, 1950 (August 25, 1950), the world's longest oil pipeline was completed. On October 6, 1950, the world's longest oil pipeline was delivered. It ran from the oil-rich US state-owned oil fields of the Persian Gulf in the east to Sidon on the Mediterranean coast in the west, with a total length of 1,066 miles. This YouTube is worth 250 million dollars, shares 332,000 tons of steel, and was built for the Arab American Oil Company.