Refuse remains a growth driver for Clean Energy Fuels. Image source: Clean Energy Fuels.Natural gas refueling leader Clean Energy Fuels Corp. (NASDAQ: CLNE) is set to report first-quarter financial results on May 5. And as has become customary for the company, it recently issued an extensive press release detailing a number of recent deals the company has signed with customers, giving some indication that the growth story isn't over, even with oil prices still half what they were two years ago. Let's take a closer look at what to expect with Clean Energy Fuels' reports, and the two things that bear watching closely. Continue reading