Dawson Geophysical Company http://www.dawson3d.com/
Acquires and analyzes 3-d seismic data used in determining whether subsurface geologic conditions appear favorable for the accumulation of oil and natural gas. (Nasdaq: DWSN).
Don Hallett, PhD http://www.hallett.info/
Emphasis on Libia, North Sea and North Africa. In association with other specialist consulting groups, offers a complete range of exploration and production services.