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NEW YORK (TheStreet) -- Here's what Jim Cramer had to say about some of the stocks during the Mad Money Lightning Round Wednesday evening:

Nisource(NI) - Get Report: "I'm a fan but you need to wait until the yield goes higher."

Clean Energy Fuels(CLNE) - Get Report: "I like the concept, but not the stock. The country is not ready for natural gas vehicles yet."

Halozyme Therapeutics(HALO) - Get Report: "That's a terrific company but be careful at the 52-week high."

Vanguard Natural Resources (VNR) : "Too risky. That 10% yield is a red flag."

American Electric Power(AEP) - Get Report: "I think it's fine. That's a good company."

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At the time of publication, Cramer's Action Alerts PLUS had no position in stocks mentioned.