'Mad Money' Lightning Round: ConocoPhillips Is Terrific

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

US Airways Group : "That stock is a buy buy buy if that American deal goes through."

Rambus : "I think it's time to ring the register. It's not exciting technology anymore."

Matador Resources : "You're passing up on EOG Resources if you're buying that one and I'd rather see you in EOG or Carrizo Oil & Gas ."

Petrobras : "I reiterate that I like it."

Alcoa : "That stock is creeping up. Next stop, $12."

Merck : "Here's the problem -- that's old pharma. I say don't buy."

ConocoPhillips : "I think that's a terrific investment."

United Rentals : "I think they tell a good story and is worth $80 a share."

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-- Written by Scott Rutt in Washington, D.C.

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