The quest to build a nationwide network of compressed natural gas (CNG) fueling stations was once seen as the lonely pursuit of Newport Beach, California-based Clean Energy Fuels. But that quest is now shared by several companies building CNG stations around the US(NGW Oct. 7'13).
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机译：建立覆盖全国的压缩天然气（CNG）加油站网络的追求曾经被视为对总部位于加利福尼亚州纽波特比奇的Clean Energy Fuels的孤独追求。但是现在，美国各地正在建设CNG加气站的几家公司也共同承担了这一任务（NGW，10月7日）。
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