http://tapseis.anl.gov/guide/what.cfm
The pipeline transports crude oil produced in several oil fields on Alaska's North Slope. The largest of these is Prudhoe Bay; other fields include Kuparuk, Endicott, Milne Point, Pt. McIntyre, and most recently, Alpine. The pipeline system was built in 1974 - 1977 and has moved over 13 billion barrels of crude oil. The peak daily throughput of 2.03 million barrels per day was reached in 1988. The current rate is approximately 1 million barrels per day (2001).