Is Clean Energy Fuels Corp. a Buy?

A few years ago, it seemed obvious that the bus and truck fleets in the U.S. would soon transition to natural gas. The fuel was less expensive than diesel, it's cleaner, and domestic supplies are plentiful. Making the switch was smart business and an environmental win.

But conditions in energy markets have changed rapidly since Clean Energy Fuels (NASDAQ: CLNE) was a hot stock on the market. Oil prices dropped by more than half and maybe most importantly there are big competitors to natural gas on the horizon. And these are competitors the entire natural gas fuel industry is going to have a hard time fighting.

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Source: Fool.com