@misc{indiciae19baa3a26cdf,
  title = {Global oil assessments and the search for non-OPEC oil},
  author = {C.D. Masters},
  year = {1986},
  doi = {10.3133/ofr86373},
  url = {https://pubs.usgs.gov/publication/ofr86373},
  note = {Source identifier: ofr86373}
}