Past and currently proposed reserve-growth models are compared to aid in the
selection of a suitable algorithm for use in the ongoing National Oil and Gas
Assessment Project. The reserve-growth models use past annual volumetric changes
of fields and reservoirs that have been grouped by age.
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Digital tabular data used in this report are available as separate files.
Computers and software may use the data without transcription from the Portable
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The file names correspond to each of the 16 tables-for example, table1.tab.
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Discovery table showing recoverable oil in oil fields based on the Energy Information Administration (1977 through 1996) dataset.
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Discovery table showing recoverable gas in gas fields based
on the Energy Information Administration (1977 through 1996) dataset.
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Discovery table showing recoverable oil in oil fields based
on the NRG Associates Fields (1982 through 1998) dataset.
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Discovery table showing recoverable gas in gas fields based
on the NRG Associates Fields (1982 through 1998) dataset.
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Discovery table showing recoverable oil in oil reservoirs
based on the NRG Associates Reservoirs (1982 through 1998) dataset.
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Discovery table showing recoverable gas in gas reservoirs
based on the NRG Associates Reservoirs (1982 through 1998) dataset.
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Growth factors from the Arrington Model - 1996 (Arrington,
1960).
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Growth factors from the Mean of U.S. Lower 48 Annual Growth
Factors - 1996 model.
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Growth factors from the MMS Federal Offshore - 1996 model
(Lore and others, 1996).
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Growth factors from the NRG U.S. Lower 48 Fields Monotone
- 1998 model (E.D. Attanasi, written commun., 2001).
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Growth factors from the NRG U.S. Lower 48 Reservoirs Monotone
- 1998 model (E.D. Attanasi, written commun., 2001).
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Growth factors from the U.S. Lower 48 Mean - 1991 model (Schmoker
and Klett, 2000).
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Growth factors from the U.S. Lower 48 Monotone - 1991 model
(Root and others, 1997).
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Growth factors from the U.S. Lower 48 Monotone - 1996 model
(E.D. Attanasi, written commun., 2001).
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Recoverable oil and natural gas volumes by age and type in
conventional fields and reservoirs of the Lower 48 United States, located
onshore and in State waters, as reported in the Energy Information Administration
(1996) and NRG Associates (1998) databases.
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Estimated additions to U.S. reserves using forecast functions
derived from the various reserve-growth models for conventional fields located
onshore and in State waters of the Lower 48 United States.
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