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Energy Glossary
Crude Oil Proved Reserves, Reserves Changes, and Production
(Million Barrels)
Data Series:
Proved Reserves as of 12/31
Adjustments (+,-)
Revision Increases (+)
Revision Decreases (-)
Sales (-)
Acquisitions (+)
Extensions (+)
New Field Discoveries (+)
New Reservoir Discoveries in Old Fields (+)
Estimated Production (-)
Period:
Annual
Download Series History
Definitions, Sources & Notes
Show Data By:
Data Series
Area
2003
2004
2005
2006
2007
2008
View
History
U.S. Total
709
960
1,101
1,176
792
478
2000-2008
Lower 48 States
709
960
1,064
1,176
776
478
2000-2008
Federal Offshore
243
218
24
272
219
34
2000-2008
Pacific (California)
0
97
0
0
20
0
2000-2008
Gulf of Mexico (Louisiana)
230
119
23
215
195
33
2000-2008
Gulf of Mexico (Texas)
13
2
1
57
4
1
2000-2008
Alaska
0
0
37
0
16
0
2000-2008
Alabama
0
0
0
14
1
1
2000-2008
Arkansas
2
0
4
0
0
0
2000-2008
California
49
147
23
130
38
20
2000-2008
Coastal Region Onshore
12
17
1
47
9
3
2000-2008
Los Angeles Basin Onshore
26
0
22
49
21
10
2000-2008
San Joaquin Basin Onshore
11
115
0
34
8
7
2000-2008
State Offshore
0
15
0
0
0
0
2000-2008
Colorado
2
13
55
68
1
2
2000-2008
Florida
0
0
0
0
14
0
2000-2008
Illinois
0
0
1
1
0
1
2000-2008
Indiana
0
0
0
3
0
0
2000-2008
Kansas
2
11
4
1
0
0
2000-2008
Kentucky
0
0
0
0
0
1
2000-2008
Louisiana
38
29
26
39
41
19
2000-2008
North
0
1
1
2
6
17
2000-2008
South Onshore
19
21
19
34
35
2
2000-2008
State Offshore
19
7
6
3
0
0
2000-2008
Michigan
21
0
0
2
3
0
2000-2008
Mississippi
1
5
11
7
6
1
2000-2008
Montana
5
10
7
50
38
41
2000-2008
Nebraska
0
1
0
0
0
0
2000-2008
New Mexico
15
72
44
90
43
10
2000-2008
East
15
72
43
90
43
10
2000-2008
West
0
0
1
0
0
0
2000-2008
North Dakota
7
32
6
140
52
21
2000-2008
Ohio
0
0
0
1
0
0
2000-2008
Oklahoma
21
58
80
45
28
99
2000-2008
Pennsylvania
0
0
0
0
0
0
2000-2008
Texas
242
281
723
198
222
215
2000-2008
RRC District 1
0
2
2
24
1
0
2000-2008
RRC District 2 Onshore
3
1
3
2
2
0
2000-2008
RRC District 3 Onshore
15
9
5
10
46
1
2000-2008
RRC District 4 Onshore
2
0
15
0
2
0
2000-2008
RRC District 5
8
1
7
0
0
0
2000-2008
RRC District 6
6
2
1
18
3
6
2000-2008
RRC District 7B
5
6
1
3
2
6
2000-2008
RRC Distict 7C
3
9
63
40
33
62
2000-2008
RRC District 8
144
129
325
75
95
122
2000-2008
RRC District 8A
53
112
292
25
28
13
2000-2008
RRC District 9
2
4
5
1
0
1
2000-2008
RRC District 10
1
5
4
0
10
4
2000-2008
State Offshore
0
1
0
0
0
0
2000-2008
Utah
25
27
0
76
1
1
2000-2008
West Virginia
0
0
0
0
0
0
2000-2008
Wyoming
36
56
56
37
69
12
2000-2008
Miscellaneous
0
0
0
2
0
0
2000-2008
-
= 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: 10/29/2009
Next Release Date: 10/29/2010
