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Energy Glossary
Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Area:
U.S. Total
Lower 48 States
Federal Offshore
Federal Offshore, Pacific (California)
Federal Offshore, Gulf of Mexico (Louisiana)
Federal Offshore, Gulf of Mexico (Texas)
Alaska
Alabama
Arkansas
California
CA, Coastal Region Onshore
CA, Los Angeles Basin Onshore
CA, San Joaquin Basin Onshore
CA, State Offshore
Colorado
Florida
Illinois
Indiana
Kansas
Kentucky
Louisiana
North Louisiana
LA, South Onshore
LA, State Offshore
Michigan
Mississippi
Montana
Nebraska
New Mexico
NM, East
NM, West
North Dakota
Ohio
Oklahoma
Pennsylvania
Texas
TX, RRC District 1
TX, RRC District 2 Onshore
TX, RRC District 3 Onshore
TX, RRC District 4 Onshore
TX, RRC District 5
TX, RRC District 6
TX, RRC District 7B
TX, RRC Distict 7C
TX, RRC District 8
TX, RRC District 8A
TX, RRC District 9
TX, RRC District 10
TX, State Offshore
Utah
West Virginia
Wyoming
Miscellaneous
Period:
Annual
Download Series History
Definitions, Sources & Notes
Show Data By:
Data Series
Area
2002
2003
2004
2005
2006
2007
View
History
Proved Reserves as of 12/31
5,009
5,120
4,691
4,483
4,096
3,905
1980-2007
Changes in Reserves During Year
Adjustments (+,-)
3
8
3
0
-3
3
1980-2007
Revision Increases (+)
521
376
450
253
471
372
1980-2007
Revision Decreases (-)
403
686
562
305
555
324
1980-2007
Sales (-)
24
225
234
42
257
218
2000-2007
Acquisitions (+)
35
243
218
24
272
219
2000-2007
Extensions (+)
125
115
99
68
71
122
1980-2007
New Field Discoveries (+)
290
702
27
201
21
18
1980-2007
New Reservoir Discoveries in Old Fields (+)
110
93
65
29
24
56
1980-2007
Estimated Production (-)
483
515
495
436
431
439
1980-2007
-
= No Data Reported;
--
= Not Applicable;
NA
= Not Available;
W
= Withheld to avoid disclosure of individual company data.
Notes:
Miscellaneous includes Arizona, Missouri, Nevada, New York, South Dakota, Tennessee, and Virginia. The production estimates in this table are based on data reported on Form EIA-23, "Annual Survey of Domestic Oil and Gas Reserves." They many differ from the official Energy Information Administration production data for crude oil contained in the "Petroleum Supply Annual." See Definitions, Sources, and Notes link above for more information on this table.
Release Date: 2/10/2009
Next Release Date: 1/29/2010
