| Crude Oil and Natural Gas Drilling Activity | |
| Period: |  |
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2006 | 2007 | 2008 | 2009 | 2010 | 2011 | View History |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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1,649 | 1,768 | 1,879 | 1,089 | 1,546 | 1,879 | 1949-2011 | ||||||
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1,559 | 1,695 | 1,814 | 1,046 | 1,514 | 1,846 | 1949-2011 | ||||||
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90 | 72 | 65 | 44 | 31 | 32 | 1949-2011 | ||||||
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274 | 297 | 379 | 278 | 591 | 984 | 1973-2011 | ||||||
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1,372 | 1,466 | 1,491 | 801 | 943 | 887 | 1973-2011 | ||||||
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2,364 | 2,388 | 2,515 | 1,722 | 1,854 | 2,075 | 1973-2011 | ||||||
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| - = 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: 9/7/2012 |
| Next Release Date: 10/5/2012 |
