Troy A. Cook Ronald R. Charpentier Donald L. Gautier Timothy R. Klett Mahendra K. Verma Robert T. Ryder Emil Attanasi P.A. Freeman Phoung A. Le Marilyn E. Tennyson 2012 The U.S. Geological Survey (USGS) recently completed an estimate of volumes of technically recoverable, conventional oil that could eventually be added to reserves in nine selected major oil fields in the San Joaquin Basin in central California. The mean total volume of potential oil reserves that might be added in the nine fields using improved oil-recovery technologies was estimated to be about 6.5 billion barrels of oil. application/pdf 10.3133/fs20123050 en U.S. Geological Survey Assessment of remaining recoverable oil in selected major oil fields of the San Joaquin Basin, California reports