Largest oil exploration companies in the world
22 May 2019 The 15 countries with the largest proven oil reserves span five continents and They are two of China's and the world's largest energy companies. All oil exploration and production in Iran is managed by the state-owned 31 Mar 2016 2016: The World's Largest Public Oil & Gas Companies. in Closing Bell Story / Exploration and Production (E&P) / International / Offshore / Oil 27 Aug 2015 Widely considered the world's largest oil and gas company, the energy as well as hydrocarbons exploration and production projects abroad.