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Energy Glossary
Crude Oil and Natural Gas Drilling Activity
Period:
Monthly
Annual
Download Series History
Definitions, Sources & Notes
Data Series
Apr-08
May-08
Jun-08
Jul-08
Aug-08
Sep-08
View
History
Rotary Rigs in Operation
1,829
1,863
1,902
1,932
1,987
2,014
1973-2008
By Site
Onshore
1,765
1,794
1,834
1,865
1,920
1,941
1973-2008
Offshore
64
68
67
67
67
73
1973-2008
By Type
Crude Oil
358
375
383
380
397
417
1973-2008
Natural Gas
1,461
1,478
1,510
1,543
1,581
1,585
1973-2008
Active Well Service Rig Count
2,498
2,546
2,554
2,567
2,611
2,612
1973-2008
-
= 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.
Release Date: 10/31/2008
Next Release Date: 11/28/2008