Trans-Alaska Pipeline: Projections of Long-Term Viability Are Uncertain

Pursuant to a congressional request, GAO assessed the reasonableness of the Department of Energy's (DOE): (1) minimum operating level estimate for the Trans-Alaska Pipeline System (TAPS); (2) economic model used to estimate oil production at the North Slope; and (3) estimate for oil field development in the Arctic National Wildlife Refuge (ANWR).