@misc{indiciae3eb8436662b0,
  title = {U.S. Geological Survey assessment model for undiscovered conventional oil, gas and NGL resources; the seventh approximation},
  author = {James W. Schmoker and Timothy R. Klett},
  year = {1999},
  doi = {10.3133/b2165},
  url = {https://pubs.usgs.gov/publication/b2165},
  note = {Source identifier: b2165}
}