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  2. Oil well - Wikipedia

    en.wikipedia.org/wiki/Oil_well

    The pumpjack, such as this one located south of Midland, is a common sight in West Texas. An oil well is a drillhole boring in Earth that is designed to bring petroleum oil hydrocarbons to the surface.

  3. Bumi Resources - Wikipedia

    en.wikipedia.org/wiki/Bumi_Resources

    PT Bumi Resources Tbk is one of the largest mining companies in Indonesia and is structured as a holding company. [3] In the 2012 Forbes Global 2000, Bumi Resources was ranked as the 1898th-largest public company in the world. [4] It is the biggest producer of thermal coal in Indonesia and is majority owned by the Bakrie Group. [5]