| EXPLORATION COMPANIES |
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 MOL Pakistan Oil & Gas Co. B.V.
OMV Pakistan.
Hycarbex INC
Pakistan Oilfield Limited.
Pakistan Petroleum Limited.
Mari Gas Company Ltd.
Lasmo Oil Pakistan Limited
Petroleum Exploration Pakistan Limited. (PEL)
British Petroleum Pakistan formerly UTP
Premier Exploration (Pakistan) Limited.
Canadian Occidental Petroleum Limited.
Ranger Oil Limited.
OGDCL (Oil & Gas Development Corporation Ltd.)
PAIGE.
RDC International. |
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| SEISMIC COMPANIES |
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Western Geco (Formerly Western Atlas Int’l )
Bureau of Geophysical Prospecting (BGP Pakistan)
Geofizyka KARAKOW.
Compagnie General Geophisque (CGG).
Asia Geophysical Services.
Siesmograph Service Limited (SSL).
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| DRILLING COMPANIES |
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Sedco Forex.
Seaco Shclumberger International Inc.
Pride Forasol.
Great Wall Drilling Company.
Deutag Drilling.
Oil & Gas Drilling Company (OGEC) (KRAKOW)
Oil & Gas Engineering Co. (SPA). |
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| SERVICES COMPANIES |
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Dowell Schlumberger S.A.
Anadril International Inc.
Halliburton Inc.
Sperry Sun Drilling Services.
Geoservices Inc.
Bakers Hughes INTEQ International Limited.
Willbros Middle East Inc.
Techno Engineering Services (PVT) Ltd.
China National Logging (CNLC)
Shahzad International.
Data Processing China National Petroleum. |
