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The world's biggest oil and gas companies
2013-11-12 01:00:00| Hydrocarbons Technology
Six of the world's top 10 oil and gas companies are state-owned. Saudi Aramco is the world's biggest, both in terms of production and reserves, while US-based ExxonMobil is the largest among publicly traded oil and gas companies. Hydrocarbons-technol
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Category:Energy and Environment