TECHNICALLY RECOVERABLE RESOURCES IN CONTINUOUS-TYPE DEPOSITS

                    
Sandstones, Shales, and Chalks


     Sixty-one continuous-type plays were defined for the 1995 National
Assessment, of which 47 were assessed. Of the assessed plays, 34 were
gas plays and 13 were oil plays. The predominant reservoir rock is
sandstone for 32 plays, shale for 20 plays, and carbonate for 9 plays.
Although the plays are geographically diverse, none are in Alaska and
none extend into State offshore waters (fig. 6).

     Technically recoverable hydrocarbon resources from continuous-
type accumulations are substantial (table 4). Estimated natural gas
resources range between 219 TCFG (95th fractile) and 417 TCFG (5th
fractile), with a mean of 308 TCFG; those for crude oil range between
1.5 and 2.7 BBO, with a mean of 2.1 BBO; those for natural gas liquids
range between 1.1 and 3.5 BBNGL, with a mean of 2.1 BBNGL.

Note: Table 4 was subdivided into various Regions:


Table4a contains Regions 2, 3, 4, 6

Table4b contains Region 8