Arctic National Wildlife Refuge:
An Assessment of Interior's Estimate of an Economically Viable Oil Field
RCED-93-130: Published: Jul 9, 1993. Publicly Released: Aug 10, 1993.
Pursuant to a congressional request, GAO reviewed the accuracy of the Department of the Interior's 1991 estimate of potential oil resources in the Arctic National Wildlife Refuge (ANWR), focusing on whether: (1) economically viable quantities exist; (2) Interior used an adequate methodology; and (3) Interior's geologic and economic assumptions were reasonable.
GAO found that: (1) although the extent of ANWR oil resources is not known, Interior used the best available geologic and geophysical data in developing its estimate; (2) Interior used generally accepted methodologies to determine that substantial oil reserves could be contained in the ANWR coastal plain; (3) Interior's estimate did not fully account for how future oil prices will affect economically viable quantities of oil; and (4) additional cost factors including oil field size, pipeline transportation, and preventative environmental measures could also affect Interior's estimate.