Based on the aggregated intelligence of 180,000-plus investors participating in Motley Fool CAPS, the Fool's free investing community, alternative-fuel provider Clean Energy Fuels (CLNE -0.87%) has earned a coveted five-star ranking.

With that in mind, let's take a closer look at Clean Energy and see what CAPS investors are saying about the stock right now.

Clean Energy facts

Headquarters (founded)

Seal Beach, Calif. (2001)

Market Cap

$1.1 billion

Industry

Oil and gas refining and marketing

Trailing-12-Month Revenue

$321.1 million

Management

Co-Founder/CEO Andrew Littlefair

CFO Richard Wheeler

Return on Equity (average, past 3 years)

(8.9%)

Cash/Debt

$178.7 million / $338.0 million

Competitors

Atlas Copco

Chesapeake Energy

Mansfield Oil

Sources: S&P Capital IQ and Motley Fool CAPS.

On CAPS, 97% of the 1,742 members who have rated Clean Energy believe the stock will outperform the S&P 500 going forward.

Just last week, one of those bulls, LouPerna, succinctly summed up the Clean Energy bull case for our community:

With [natural gas] prices low and with major portions of the Natural Gas Hwy complete, industry has a compelling reason to switch to natural gas. This should lead to major revenue and profit increases over the next few years. The wide moat should discourage competition

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