TY - RPRT TI - Petroleum systems and geologic assessment of undiscovered oil and gas, Cotton Valley Group and Travis Peak-Hosston Formations, East Texas Basin and Louisiana-Mississippi Salt Basins Provinces of the Northern Gulf Coast Region AU - U.S. Geological Survey Gulf Coast Region Assessment Team PY - 2006 DO - 10.3133/ds69e UR - https://pubs.usgs.gov/publication/ds69E ID - ds69E ER -