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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
3,633
3,452
3,376
3,435
3,389
3,322
1977-2007
Changes in Reserves During Year
Adjustments (+,-)
18
-18
3
16
13
-6
1977-2007
Revision Increases (+)
223
190
210
177
243
248
1977-2007
Revision Decreases (-)
85
107
97
70
125
144
1977-2007
Sales (-)
6
58
142
4
120
10
2000-2007
Acquisitions (+)
25
49
147
23
130
38
2000-2007
Extensions (+)
88
9
42
147
27
27
1977-2007
New Field Discoveries (+)
0
0
0
0
0
0
1977-2007
New Reservoir Discoveries in Old Fields (+)
0
0
0
0
8
0
1977-2007
Estimated Production (-)
257
246
239
230
222
220
1977-2007
-
= 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: 11/10/2008
Next Release Date: 10/16/2009
