@misc{indiciae002cead48e65, title = {USGS assessment of undiscovered oil and gas resources for the Oligocene Frio and Anahuac formations, U.S. Gulf of Mexico coastal plain and state waters: Review of assessment units}, author = {Sharon M. Swanson and Alexander W. Karlsen and Peter D. Warwick}, year = {2007}, doi = {10.5724/gcs.07.27.0341}, url = {https://pubs.usgs.gov/publication/70195420}, note = {Source identifier: 70195420} }