Esco Kuwait
- Stocks oil field equipment and spare parts; includes details on services, contacts, and product list.
- http://www.escokuwait.com/

Kuwait Oil Company
- Explores, develops and produces hydrocarbon resources; includes news, company profile, job openings, photo gallery.
- http://www.kockw.com/

EQUATE Petrochemical Company
- Stand-alone petrochemical complex in Safat, which produces and distributes polyethylene and ethylene glycol. Includes profile, news, projects, and contact data.
- http://www.equate.com/

Kuwait National Petroleum Company
- One of the largest oil complexes in the world, housing oil refineries in Mina Abdulla, Mina Ahmadi and Shuaiba. Includes company news, impact of the Iraqi invasion, photo gallery, news and events, and job openings.
- http://www.knpc.com.kw/