ABBCO

ALSKA CHADUX CORP.

AL SHAHBA ENG.

ALYESKA PIPELINE

ALYESKA PUMP AND EQUIP SVCS

AMBAR ENVIR.

ACS (US ARMY)

ARCO ALASKA

AMSA

ARMCO

BITOR AMERICA

BIROR- S. AMERICA

BOSTON LINE

BOWING INTERNATIONAL

BREG INTERNATIONAL

BRITISH PETROLEUM- COLUMBIA S. AMERICA

CADILLAC PLASTICS

CAROLINA B, INC.

CAPE CANAVERAL MARINE SVCS.

CAYMAN ISL.-DEPT OF ENVIRONMENT

CENEX

CENTRAL TRADING & DEVELOPMENT

CLEAN CASCO BAY

CLEAN AMERICA

CLEAN RIVERS CO-OP CO.

CLG

CLIFF BERRY, INC.

COLONIAL PIPELINE

COSTAL FUELS MARKETING

CONCOCO

CONCOCO PIPELINE CORPORATION

CON-EDISON UTILITY

CSX TRANSPORTATION

DELAWARE BAY & RIVER CORP.

DESA

DISNEYLAND USA

DISNEYLAND EUROPE

DISNEYLAND BAHAMAS

E.E.S., INC.

E.R.R., INC.

EASTERN MASTER PUMP

ECOPETROL

ELECTRIC ENERGY, INC.

FLORIDA POWER, INC.

G.P.C.

GARNER ENVIRONMENTAL

GEORGIA ENVIRONMENTAL

GARY BAR, INC.

GULF-COAST ENVIRONMENTAL

HAFIA REFINERY, ISRAEL

HARTEC-RUSSIA

HESS REFINERY

HOWARD ENVIRONMENTAL

INTERNATIONAL TOOL AND SUPPLY

JBF-SCIENTIFIC

JAMESTOWN MARINE

JOYMAI ENVIRONMENTAL

JINWON INDUSTRIES

KOREAN MARINE POLICE

KOMIOIL-RUSSIA

LCM CORP.

LA ESSPONJA DEL TEIDE, S.L.

LAGOVEN-S. AMERICA

LUKOIL-RUSSIA

M-3, INC.

MASTER PUMP

MARATHON OIL

MARATHON OIL REFINERY

MAROVEN-S. AMERICA

MARTIN MARIETTA

MOBILE OIL CO.

MONTANA CO-OP

NATIONAL RESPONSE CORPORATION

OIL EQUIPMENT

PANAMA CANAL COMMISSION

PEMEX

SAN-DAN, ISRAEL

US AIR FORCE

US ARMY

US EPA

US NAVY