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NEW YORK ( TheStreet) -- Here's what Jim Cramer had to say on CNBC's "Squawk On The Street" Tuesday: Cramer continues to believe there may be a bottom forming in natural gas, which would make shares of Cabot Oil & Gas ( COG) attractive. He was also upbeat on Clean Energy Fuels ( CLNE), saying that our country needs more natural gas filling stations, and Clean Energy builds them. Turning to retail, Cramer noted that Wal-Mart ( WMT) is now trading near the levels it reached before reporting disappointing results. He also took on the bears attacking Amazon.com's ( AMZN) valuation. Cramer said this stock has been overvalued ever since it came public but it still goes higher. Cramer responded to a research report downgrading Microsoft ( MSFT) because of slowing PC sales -- "No kidding." Finally, Cramer said shares of Starbucks ( SBUX) have been hurt by weakness in Europe, so he's hopeful that a pickup in Asia will be just what the company needs. --Written by Scott Rutt in Washington, D.C. To email Scott about this article, click here: Scott Rutt Follow Scott on Twitter @ScottRutt or get updates on Facebook, ScottRuttDC To watch replays of Cramer's video segments, visit the Mad Money page on CNBC.