AAC GRUP S.A., Spain
AGIP SPA, Italy
AGRICOLA D'ARSEGO DI GIOVANNA GRECO CARNAROLI E C SAS, Italy
AMERADA HESS LTD, United Kingdom
AMERADA HESS NORSE AS, Norway
APPLICATION DES GAZ, France
ARAN ENERGY PLC, Eire
ARCO BRITISH LTD, United Kingdom
ARCO NETHERLANDS INC, Netherlands
ASCOSMIT CO. LTD, United Kingdom
ATTOCK OIL CO. LTD, United Kingdom
B P EXPLORATION OPERATING CO. LTD, United Kingdom
B P OIL U K LTD, United Kingdom
BAROID CORPORATION LTD, United Kingdom
BEB ERDGAS UND ERDOEL GMBH, Germany
BLYSTAD GROUP PLC, United Kingdom
BP ITALIA SPA, Italy
BP NEDERLAND BV, Netherlands
BP NEDERLAND HOLDINGS BV, Netherlands
BRIGITTA ERDGAS UND ERDOEL GESELLSCHAFT MBH, Germany
BRITISH PETROLEUM CO. PLC, United Kingdom
BRITISH PIPE COATERS LTD, United Kingdom
BRITISH-AMERICAN TOBACCO (MAURITIUS) PLC, United Kingdom
BRITOIL PLC, United Kingdom
BURMAH CASTROL PLC, United Kingdom
C. DEILMANN AG, Germany
C. DEILMANN GMBH, Germany
CAMARA ARROCERA DE AMPOSTA S. C. AGRICOLA Y SECCION DE CREDITO D, Spain
CHEVRON OIL COMPANY OF SPAIN (SUCURSAL EN ESPANA), Spain
CHEVRON PETROLEUM (U K) LTD, United Kingdom
CHEVRON U K LTD, United Kingdom
CHILLINGTON CORPORATION PLC, United Kingdom
CLOVIS MATTON NV, Belgium
CLUFF RESOURCES PLC, United Kingdom
COALITE GROUP LTD, United Kingdom
COMPAGNIA NAPOLETANA DI ILLUMINAZIONE E SCALDAMENTO COL GAS SPA, Italy
CONOCO (U K) LTD, United Kingdom
CONOCO MINERALOEL GMBH, Germany
CONOCO NORWAY INC., Norway
CONSOLIDATED GOLD FIELDS LTD, United Kingdom
CONTINENTAL NETHERLANDS OIL COMP., Netherlands
CONTINENTALE ITALIANA SPA, Italy
COOP TABACCHI VERONA SOC COOP ARL, Italy
COOP. AGRICOLA CORDOBESA DE CULTIVADORES DE ALGODON, Spain
COPAREX, France
DALGETY PLC, United Kingdom
DANSK NATURGAS A/S, Denmark
DANSK OLIE OG NATURGAS A/S, Denmark
DAVIES & NEWMAN HOLDINGS PLC, United Kingdom
DEMINEX JAVA OEL GMBH, Germany
DEMINEX SYRIA GMBH, Germany
DEMINEX-DEUTSCHE ERDOELVERSORGUNGS GMBH, Germany
DEMINEX-DEUTSCHE ERDOELVERSORGUNGS-GESELLSCHAFT MBH, Germany
DEN NORSKE STATS OLJESELSKAP AS, Norway
DEUTSCHE BP GMBH, Germany
DEUTSCHE SCHACHTBAU- UND TIEFBOHR-GESELLSCHAFT MBH, Germany
DU PONT CONID SPA, Italy
ELF AQUITAINE (STE NATL), France
ELF AQUITAINE ANGOLA, France
ELF AQUITAINE NORGE AS, Norway
ELF AQUITAINE U K (HOLDINGS) PLC, United Kingdom
ELF ITALIANA SPA, Italy
ELF PETROLAND BV, Netherlands
ELPEE GAS BV, Netherlands
ENI ENTE NAZIONALE IDROCARBURI, Italy
ENTERPRISE OIL PLC, United Kingdom
ERAMET SLN, France
ERG PETROLI SPA, Italy
ESSO DE RECHERCHES ET D'EXPLOITATION PETROLIERE (SOCIETE), France
ESSO U K PLC, United Kingdom
EXPLORATION & PRODUCTION SERVICES (HOLDINGS) LTD, United Kingdom
EXPLORATION & PRODUCTION SERVICES (NORTH SEA) LTD, United Kingdom
FERRUM HOLDINGS PLC, United Kingdom
FINA EXPLORATION NORWAY, Norway
FINANCIERE DESQUENNE ET GIRAL, France
FLEXTECH PLC, United Kingdom
FUCHS PETROLUB AG, Switzerland
G.J. MOLLEN H/O FIRMA B. MOLLEN EN ZN., Netherlands
GAS UND OEL GMBH, Germany
GEARHART (UNITED KINGDOM) LTD, United Kingdom
GECO GEOPHYSICAL CO. LTD, United Kingdom
GEOSERVICES, France
GLOBAL MARINE DRILLING CO., United Kingdom
HALLIBURTON HOLDINGS LTD, United Kingdom
HALLIBURTON ITALIANA SPA HOWCO ITALIANA, Italy
HAUGESUND MEKANISKE VERKSTED AS, Norway
HERMANN VON RAUTENKRANZ INTERNATIONALE TIEFBOHRGESELLSCHAFT MBH, Germany
HUNTING OILFIELD SERVICES LTD, United Kingdom
HUNTING PLC, United Kingdom
K C A DRILLING LTD, United Kingdom
KELT ENERGY PLC, United Kingdom
KLEINWANZLEBENER SAATZUCHT AG, Germany
KONINKLIJKE NEDERLANDSE PETROLEUM MAATSCHAPPIJ, Netherlands
KUWAIT PETROLEUM REFINING (DANMARK) A/S, Denmark
KWS KLEIN WANZLEBENER SAATZUCHT AG, Germany
L A S M O PLC, United Kingdom
LAWRIE GROUP PLC, United Kingdom
LOFFLAND NABORS U K LTD, United Kingdom
MARATHON OIL U K LTD, United Kingdom
MARATHON PETROLEUM IRELAND LTD., Eire
MOBIL ERDGAS-ERDOEL GMBH, Germany
MOBIL EXPLORATION NORWAY INC AS, Norway
MOBIL OIL AG, Germany
MORAN HOLDINGS PLC, United Kingdom
NOBLE DRILLING (U K) LTD, United Kingdom
NORDDEUTSCHE ERDGAS-AUFBEREITUNGS- GMBH, Germany
NORGES HYPOTEKINSTITUTT AS, Norway
NORPIPE AS, Norway
NORSK AGIP AS, Norway
NORSK HYDRO AS, Norway
NORTH SEA ASSETS PLC, United Kingdom
NORWEGIAN OIL CONSORTIUM AS, Norway
NYNAS NV, Belgium
O I L LTD, United Kingdom
OCCIDENTAL PETROLEUM (CALEDONIA) LTD, United Kingdom
OCENA WILSONS (HOLDINGS) PLC, United Kingdom
OMV AKTIEN GMBH, Austria
PENINSULAR & ORIENTAL STEAM NAVIGATION CO., United Kingdom
PERGINE SPA, Italy
PETREX SPA, Italy
PETROL HOLDING AS, Norway
PETROLEOS DE PORTUGAL (PETROGAL) S.A., Portugal
PETROREP (STE), France
PFEIFER & LANGEN, Germany
PHILLIPS PETROLEUM CO. UNITED KINGDOM LTD, United Kingdom
PHILLIPS PETROLEUM COMPANY NORWAY, Norway
PRESS OFFSHORE LTD, United Kingdom
R T Z CORPORATION PLC, United Kingdom
RASMUSSEN GRUPPEN, Norway
RCO CRUDE OIL, Germany
REPSOL S.A., Spain
REPSOL EXPLORACION S.A., Spain
RGV ROHOEL-GEWINNUNGS- UND VERARBEITUNGS-GMBH, Germany
RIGBLAST GROUP LTD, United Kingdom
ROHOL AUFSUCHUNGS GESELLSCHAFT M.B.H., Austria
ROYAL CHAMPIGNON, France
SAGA PETROLEUM AS, Norway
SAIPEM SPA, Italy
SCHLUMBERGER ITALIANA SPA, Italy
SEDCO FLOREX DRILLING SERVICES LTD, United Kingdom
SHELL (SWITZERLAND) AG, Switzerland
SHELL U K LTD, United Kingdom
SIDLAW GROUP PLC, United Kingdom
SMEDVIG 1989 LTD, United Kingdom
SNAMPROGETTI SPA, Italy
SOCIETA' GASDOTTI DEL MEZZOGGIORNO SGM SPA, Italy
SOCIETA' PETROLIFERA ITALIANA SPA, Italy
SOL SPA, Italy
SPT SRL, Italy
STATOIL A/S, Denmark
SUCRERIE (COMPAGNIE FRANCAISE DE), France
SWEDEGAS AB, Sweden
TEXACO LTD, United Kingdom
TOTAL INDONESIE, France
TOTAL MARINE NORSK AS, Norway
TOTAL OIL MARINE PLC, United Kingdom
TRITON FRANCE, France
TROOST HOUDSTERMAATSCHAPPIJ BV, Netherlands
ULTRAMAR PLC, United Kingdom
VANOL HOLDING AG, Switzerland
VEBA OIL LIBYA GMBH, Germany
VEBA OIL NEDERLAND BV, Netherlands
VILMORIN, France
WILLIAMSON TEA HOLDINGS PLC, United Kingdom
WINTERSHALL AG, Germany