ANWR's Index Total area, in square miles, of the Arctic National Wildlife Refuge: 30,900 Total area, in square miles, of the state of South Carolina: 30,111 Total area, in square miles, of the National Petroleum Reserve-Alaska: 35,900 Number of years that the Navy didn't pump oil in the National Petroleum Reserve-Alaska, preserving it for a "major national emergency": 43 Number of major wars that the US took part in during that time: 3 Number of months after the Department of the Interior gained control of the NPR-A that drilling activity began: 13 Approximate number of wells on Alaska's north slope: 500+ Gallons of waste produced by these wells each year: 840,000 Average number of days between "major incidents" on the Alaska pipeline since 1979: 10 Millions of gallons of toxic pollutants that were pumped onto roads or open tundra by oil companies in 1985: 13 Total area, in acres, of the ANWR's 1002 Area: 1,500,000 Number of species of birds found in the 1002 Area: 180 Number of continents where these same birds are observed as having an impact on those ecosystems: 5 Percent change in the body fat of snow geese after feeding in the 1002 Area for three weeks: +400 Amount that the price of gas would be affected by the introduction of ANWR oil to the market: 23 cents Number of years before ANWR oil would reach the market: 15 Number of months before ANWR oil is used up, and prices return to previous rates: 9 Billions of barrels of oil used by Americans each year: 7 Estimated barrels of oil, in billions, that are economically recoverable in the ANWR: 5.3 Percentage chance that this oil can be recovered and be profitable: 50% Assumed market value of oil to make extraction profitable: $24 Current market value of Alaska North Slope Crude Oil: $24.99 Current market value of Middle Eastern (Dubai) Crude Oil: $23.18 Number of days since December, 1996 that the market value of Alaskan oil has exceeded that of Dubai oil: 13 Number of miles of heavy equipment trails created by seismic exploration of the 1002 Area during the winters of 1984, 1985: 2,500 Approximate number of miles of these scars that are still visible in the tundra today: 425 Estimated number of miles of scarring to be caused just by seismic exploration if the ANWR is opened to drilling: ??? Number of caribou in the 1002 Area's Porcupine Caribou Herd: 129,000 Ratio of area used by the Central Arctic Caribou herd to that of the Porcupine Herd: 5:1 Ratio of number of caribou in the Central Arctic Herd to that of the Porcupine Herd: 1:6 Number of miles that caribou move away from human disturbance to find birthing grounds: 1.5 Distance in miles between seismic trails projected as necessary for oil exploration in the ANWR: 1/2 Millions of gallons of ANWR water available to create the necessary ice-roads for "low-impact" oil drilling: 9 Miles of roads able to be created from this water: 10 Distance, in miles, from the nearest pipeline to ANWR oil: 50