Offshore staff

HOUSTON --TGS-Nopec Geophysical Co. has completed acquiring Parallel Data Systems Inc. for $56.4 million and TGS shares.

The acquisition will increase TGS' processing capacity and will add new imaging technologies, the company says. It also will accelerate commercialization of next-generation seismic imaging technologies, including wide azimuth 3D.

5/15/2007