اهم الشركات النفطية العالمية
www.petrochina.com
www.bp.com
www.antonoil.com
www.slb.com
www.petex.com
www.weatherford.com
www.shell.com
www.petronas.com
www.chevron.com
www.conocophilips.com
www.gazprom.com
www.halliburton.com
www.petrobras.com.br
www.oxy.com
www.exxonmobil.com
www.apachecorp.com
www.oman-oil.com
www.qp.com.qa
www.saudiaramco.com
www.kec.com.kw
assembling and design : J.H. Al-Joumaa