Международные нефтегазовые компании:

•       Amerada Hess

•       BP

•       ChevronTexaco

•       ConocoPhillips

•       ExxonMobil

•       Kerr-McGee

•       Marathon Oil

•       Occidental Petroleum

•       Petro-Canada

•       Shell

•       Total

Международные компании по Проектированию-Закупкам-Строительству:

•       ABB Lummus Global

•       Aker Kvaerner

•       Bechtel

•       Brown & Root / Halliburton
Fluor Daniel

•       Hanover

•       Hyundai (HDEC / HHI)

•       Mustang Engineering

•       MW Kellogg

•       Samsung (SEC / SHI)

•       SKEC

•       Technip

Национальные нефтяные компании :

•       ADNOC / ADCO / ADMA-OPCO

•       China National Offshore Oil Corp. Chinese Petroleum Corp

•       Ecopetrol Colombia

•       GASCO

•       Khalda Petroleum

•       Kuwait Oil Co.

•       ONGC India

•       Pertamina Indonesia

•       PEMEX

•       Petrobras
PetroEcuador

•       Petroperu

•       PetroVietnam

•       PDVSA

•       PDO Oman

•       Qatar Petroleum

•       Repsol

•       Saudi Aramco

•       Sonatrach Algeria

Прочие компании:

•       Anadarko

•       British Gas

•       Cabot Oil & Gas

•       Chesapeake Energy

•       Citgo

•       Denbury Resources

•       Devon Energy

•       Diamond Shamrock / Valero

•       El Paso Corp.

•       EOG Resources

•       Fina Oil & Chemicals

•       Firestone

•       Goodyear Tire & Rubber

•       Koch Industries

•       Maxus Energy

•       Noble Energy

•       Pogo Producing

•       Saudi Hadeed

•       Saudi Texaco

•       Schlumberger

•       Unocal

•       Williams

•       YPF