Though widely used for decades to fuel home heating systems, utility boilers, and industrial furnaces, natural gas has still accounted for far less of the energy consumed in the United States than has oil.
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Anatural gas has still accounted for far less of the energy consumed in the United States than has oil
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Bnatural gas has still accounted for far less of the energy consumed in the United States as oil
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Cnatural gas still has accounted for far less of the energy consumed in the United States as oil has
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Dstill far less of the energy consumed in the United States has been accounted for by natural gas as by oil
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Estill far less of the energy consumed in the United States has been accounted for by natural gas than has oil
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