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Energy Glossary
Crude Oil and Natural Gas Drilling Activity
Period:
Monthly
Annual
Download Series History
Definitions, Sources & Notes
Data Series
Sep-07
Oct-07
Nov-07
Dec-07
Jan-08
Feb-08
View
History
Rotary Rigs in Operation
1,783
1,762
1,798
1,811
1,749
1,765
1973-2008
By Site
Onshore
1,718
1,713
1,737
1,749
1,690
1,709
1973-2008
Offshore
65
49
61
62
60
56
1973-2008
By Type
Crude Oil
302
321
341
338
321
331
1973-2008
Natural Gas
1,475
1,435
1,451
1,468
1,421
1,426
1973-2008
Active Well Service Rig Count
2,418
2,395
2,408
2,420
2,476
2,455
1973-2008
Last Updated 04/02/2008
-
= No Data Reported;
--
= Not Applicable;
NA
= Not Available;
W
= Withheld to avoid disclosure of individual company data.
Notes:
Rotary rigs in operation are reported weekly. Monthly data are averages of 4- or 5-week reporting periods, not calendar months. Annual data are averages over 52 or 53 weeks, not calendar year. Published data are rounded to the nearest whole number. Geographic coverage is the 50 States and the District of Columbia. See Definitions, Sources, and Notes link above for more information on this table.
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