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Energy Glossary
Crude Oil and Natural Gas Drilling Activity
Period:
Monthly
Annual
Download Series History
Definitions, Sources & Notes
Data Series
Aug-09
Sep-09
Oct-09
Nov-09
Dec-09
Jan-10
View
History
Rotary Rigs in Operation
980
1,009
1,044
1,107
1,172
1,267
1973-2010
By Site
Onshore
949
976
1,011
1,071
1,136
1,225
1973-2010
Offshore
31
33
33
36
37
42
1973-2010
By Type
Crude Oil
279
293
312
362
404
433
1973-2010
Natural Gas
691
704
722
734
758
822
1973-2010
Active Well Service Rig Count
1,653
1,579
1,613
1,625
1,625
1,706
1973-2010
-
= 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.
Release Date: 3/3/2010
Next Release Date: 4/2/2010