TY - RPRT TI - Wells drilled for oil and gas deeper than 20,000 feet in the conterminous United States and offshore AU - K. I. Takahashi AU - Kimberley I. Cunningham PY - 1983 DO - 10.3133/ofr83922 UR - https://pubs.usgs.gov/publication/ofr83922 ID - ofr83922 ER -