HalliburtonCompanyprovidesvariousproductsandservices to the energy industry for the exploration, development, andproductionofoilandnatural gasworldwide.
Chesapeake Energy Corp. is an independent oilandgascompany engaged in the development, exploration, acquisition and production of onshore natural gasandoil reserves.
Concho Resources Inc. (Concho) is an independent oiland natural gascompany engaged in the acquisition, developmentandexploration of oiland natural gas properties.