Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link.

NEW YORK (TheStreet) -- On Monday, Sept. 29, 2014, Chief Financial Officer at Clean Energy Fuels (CLNE) - Get Report , Richard R. Wheeler, purchased a total of 170,000 shares of Clean Energy Fuels stock by exercising option contracts that gave him the right to purchase the shares for $2.96 each. This increased Mr. Wheeler's total position to 170,000 shares.

The share acquisition followed the Sept. 26, 2014 sale by CFO Mr. Wheeler of 160,444 shares at an average price of $8.52. The sale had briefly eliminated Mr. Wheeler's insider position in Clean Energy Fuels, before reaffirming his faith in company prospects by re-establishing a modestly larger position.

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Separately, TheStreet Ratings team rates CLEAN ENERGY FUELS CORP as a "sell" with a ratings score of D+. TheStreet Ratings Team has this to say about their recommendation:

"We rate CLEAN ENERGY FUELS CORP (CLNE) a SELL. This is driven by a few notable weaknesses, which we believe should have a greater impact than any strengths, and could make it more difficult for investors to achieve positive results compared to most of the stocks we cover. The company's weaknesses can be seen in multiple areas, such as its deteriorating net income, disappointing return on equity, poor profit margins, weak operating cash flow and generally high debt management risk."

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