@misc{indiciaef8ca6eb7e984,
  title = {Estimates of undiscovered conventional resources of oil and gas for Federal Lands, and for Indian and Native Lands of the Continental United States},
  author = {G.L. Dolton and R. F. Mast and R. A. Crovelli},
  year = {1990},
  doi = {10.3133/ofr90705},
  url = {https://pubs.usgs.gov/publication/ofr90705},
  note = {Source identifier: ofr90705}
}