neo potential worth a read , page-2

Heres a Resource Summary from the web site i used in the last post

With respect to undiscovered conventional hydrocarbon resources in the San Joaquin Basin Province, the USGS estimated means of 1.7 trillion cubic feet of gas (TCFG), 393 million barrels of oil (MMBO), and 86 million barrels of total natural gas liquids (MMBNGL) for the five total petroleum systems (exclusive of reserve growth in existing oil and gas fields). Well over half of both the mean undiscovered gas resource (62 percent, 1 TCFG) and the mean NGL resource (67 percent, or 57 MMBNGL) is in the Deep Fractured Pre-Monterey Assessment Unit of the Eocene-Miocene Composite Total Petroleum System (table 1). Of the mean 393 MMB of total undiscovered oil, about 328 MMBO (83 percent) is estimated to be in five assessment units of the Miocene Total Petroleum System, and 46 MMBO (12 percent) is estimated for the Eocene West Side Fold Belt Assessment Unit of the Eocene Composite Total Petroleum System (table 1). Nearly 31 percent, or 121 MMB, of the total mean undiscovered oil resource in the San Joaquin Basin Province is estimated to be in the Central Basin Monterey Diagenetic Traps Assessment Unit.

Potential reserve growth in existing oil and gas fields in the San Joaquin Basin Province was calculated during our study. Based on the analyses of recovery efficiencies and remaining oil-in-place, we estimated that another 3.5 billion barrels of oil may be added to reserves in existing fields. Most additional reserves may come from improved recovery in diatomite reservoirs of the Miocene Monterey Formation. This estimate of potential reserve growth suggests that most oil in the future may come from existing fields rather than from new oil field discoveries in the San Joaquin Basin.