TY - RPRT TI - 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 AU - Sharon M. Swanson AU - Alexander W. Karlsen AU - Peter D. Warwick PY - 2007 DO - 10.5724/gcs.07.27.0341 UR - https://pubs.usgs.gov/publication/70195420 ID - 70195420 ER -