@misc{indiciae15eb75ad6ca0,
  title = {Oil and gas resource assessment areas, 1992: Lower 48 states},
  author = {G.L. Dolton and K. L. Varnes and D. L. Gautier and J. K. Baird},
  year = {1992},
  doi = {10.3133/ofr92696},
  url = {https://pubs.usgs.gov/publication/ofr92696},
  note = {Source identifier: ofr92696}
}