Using a geology-based assessment methodology, the U.S. Geological Survey estimated undiscovered, technically recoverable mean resources of 8.5 billion barrels of oil and 66 trillion cubic feet of gas in continuous accumulations in the Upper Cretaceous Eagle Ford Group and associated Cenomanian-Turonian strata in onshore lands of the U.S. Gulf Coast region, Texas.

Using a geology-based assessment methodology, the U.S. Geological Survey assessed undiscovered, technically recoverable continuous mean resources of 46.3 billion barrels of oil and 281 trillion cubic feet of gas in the Wolfcamp shale and Bone Spring Formation of the Delaware Basin in the Permian Basin Province, southeast New Mexico and west Texas.

Building on a geology-based assessment of undiscovered, technically recoverable petroleum resources in the Eagle Ford Group in south Texas, the U.S. Geological Survey has estimated the required water and proppant demands and formation water production volumes associated with possible future development of these petroleum resources. The results of the water and proppant assessment are presented here, along with related drilling information and relevant water budget volumes for the region.

Figure 1. Map of Northern Alaska showing boundaries of the six assessment units (AUs) in the National Petroleum Reserve in Alaska (NPR-A) and adjacent areas. Assessment units include State waters. Older AUs assessed in 2010 are not shown.

The USGS quantitatively assessed undiscovered continuous oil and gas resources in two AUs within the Ordovician Point Pleasant/ Utica-Lower Paleozoic TPS (table 2). The estimated means for total undiscovered resources in the AUs are 1,819 million barrels of oil (MMBO), or 1.8 billion barrels of oil, with an F95-F5 range from 388 to 4,008 MMBO; 117,211 billion cubic feet of gas (BCFG), or 117.2 trillion cubic feet of gas, with an F95-F5 range from 21,324 to 281,108 BCFG; and 985 million barrels of natural gas liquids (MMBNGL) with an F95-F5 range from 160 to 2,522 MMBNGL.