April 1999
Industry At A Glance

99-04_us-geophysical-activity.html (Apr-1999)

A monthly magazine offering industry news, statistics and technical editorial to the oil and gas drilling, exploration and production industry.
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April 1999 Vol. 220 No. 4 

U.S. Geophysical Activity

      Seismic crews working
Regions March
1999
  Feb.
  1999
March
1998

Rocky Mountains 7 7 1
Mid-Continent 8 7 11
Southwest 16 18 16
Gulf Coast 21 27 32
Offshore 47 48 48
Others 12 14 16

Totals 111 121 124
Source: Petroleum Information Corp. / Dwight's World Geophysical News

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