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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-08
Sep-08
Oct-08
Nov-08
Dec-08
Jan-09
View
History
Rotary Rigs in Operation
1,987
2,014
1,976
1,935
1,782
1,553
1973-2009
By Site
Onshore
1,920
1,942
1,903
1,872
1,716
1,487
1973-2009
Offshore
67
72
73
63
66
66
1973-2009
By Type
Crude Oil
397
417
422
426
391
328
1973-2009
Natural Gas
1,581
1,585
1,542
1,498
1,380
1,215
1973-2009
Active Well Service Rig Count
2,611
2,612
2,591
2,469
2,342
2,152
1973-2009
-
= 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: 3/3/2009
Next Release Date: 4/2/2009