حفر وسبر، معدات

RIGSERV LTD

WOOD & DAVIDSON LIMITED

APPLUS RTD UK LIMITED

HOLEMASTERS (SCOTLAND) LTD

KCA DEUTAG (UK) LTD

RAEBURN DRILLING & GEOTECHNICAL LTD

N.U.B. ENGINEERING LTD

PETROLEUM MANUFACTURING SERVICES LIMITED

X C D LTD

CORE DRILLING SPECIALIST

ROCKLIFT LTD

RAM TUBULARS (SCOTLAND) LTD

QUICK DRILL LTD

ELECTRO-FLOW CONTROLS LIMITED

SPECIALISED PETROLEUM SERVICES INTERNATIONAL (BRANCH) LTD

DIAMOND DRILLING (INVERNESS) LTD

NATIONAL OILWELL (U.K.) LTD

CORE TEC

J B SITE INVESTIGATIONS

GEOLINK (UK) LTD

TRANSOCEAN DRILLING LTD

SIGMA 3 (NORTH SEA) LIMITED

ORWELL GROUP LIMITED

GLOBAL LIFTING SERVICES LIMITED

ELMAR SERVICES LIMITED

VENTURE OILFIELD SERVICES LTD

DOLPHIN DRILLING

STENA DRILLING LTD

A C DRILLING

R J BLASTING LTD