Chemicals and 2 other

Owner

NOWSCO WELL SERVICE LTD.

Jul 5, 1994

Chemicals

Owner

NOWSCO WELL SERVICE LTD.

—

Electrical and Scientific Apparatus and 2 other

Owner

NOWSCO WELL SERVICE LTD.

—

Computer and Scientific

Owner

NOWSCO WELL SERVICE LTD.

Nov 7, 1989
STRATA VISION

Computer and Scientific

Owner

NOWSCO WELL SERVICE LTD.

Oct 24, 1989
FRACSURE

Treatment of Materials

Owner

NOWSCO WELL SERVICE LTD.

Jan 29, 1991