By KATHY SHIRLEY
EXPLORER Correspondent
TABLE 4.
The Composition of Recent Reserve Additions by Type of Addition
and Geologic Age on the Gulf of Mexico OCS Shelf.
|
Table 4. The Composition of Recent Reserve Additions by Type of
Addition and Geologic Age on the Gulf of Mexico OCS Shelf.
Geologic Age
|
New Reservoir Discoveries
(million BOE)
|
Additions to Older Reservoirs
(million BOE)
|
Total 1991-1998 Additions
(million BOE)
|
|
Pleistocene
|
290
|
754
|
1,044
|
|
Pliocene
|
591
|
2,312
|
2,903
|
|
Miocene
|
819
|
1,568
|
2,387
|
|
Oligocene
|
6
|
0
|
6
|
|
Cretaceous
|
4
|
0
|
4
|
|
Jurassic
|
60
|
163
|
223
|
|
Total
|
1,770
|
4,797
|
6,567
|
Source: NRG Associates, The Significant Oil and Gas Fields
of the Gulf of Mexico Database
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