The U. S. Geological Survey is compiling a series of oil and gas maps that the Survey will publish as an oil and gas atlas of the United States. The maps in the series will synthesize information both on the national scale and for individual basins, and will include geologic, geochemical, geophysical, and exploratory data.

The maps displayed are the preliminary publications (open-file reports) of this new series. The national-scale maps for the conterminous United States show (1) location and names of basins, (2) total thickness of sedimentary rocks, (3) location of oil and gas wells drilled deeper than 15,000 ft (4,500 m), and (4) location of oil and gas wells drilled deeper than 20,000 ft (6,000 m). Basin maps of the north slope of Alaska show (1) well locations, (2) isopachs, and (3) structure contours.

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