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Energy Glossary
View History:
Monthly
Annual
Download Data (XLS File)
U.S. Crude Oil Developmental Wells Drilled (Number of Elements)
Decade
Year-0
Year-1
Year-2
Year-3
Year-4
Year-5
Year-6
Year-7
Year-8
Year-9
1940's
19,946
1950's
22,229
21,416
21,514
23,342
26,156
28,196
28,261
25,419
22,029
22,341
1960's
20,937
20,280
20,516
18,821
18,686
17,119
15,584
14,343
13,377
13,284
1970's
12,211
11,194
10,693
9,525
12,788
15,966
16,602
17,581
18,010
19,530
1980's
31,182
41,236
37,022
35,336
40,697
33,581
18,129
15,284
12,791
9,623
1990's
11,781
11,434
8,521
8,255
6,422
7,278
8,264
10,011
6,693
4,158
2000's
7,707
8,456
6,476
7,702
8,324
10,103
12,578
12,566
16,953
-
= No Data Reported;
--
= Not Applicable;
NA
= Not Available;
W
= Withheld to avoid disclosure of individual company data.
Release Date: 10/8/2009
Next Release Date: 11/6/2009
Referring Pages:
Crude Oil and Natural Gas Exploratory and Development Wells