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Lightning Round OT: Houston American Energy, Sina and More

Houston American Energy : Cramer likes this Houston-based oil company's stock as a speculative play. However, he is more interested in high-yielding master limited partnerships, like Kinder Morgan Energy Partners.

Louisiana-Pacific : As Japan rebuilds following a series of natural disasters, Cramer thinks lumber companies could benefit. He prefers Weyerhaeuser over LPX, though.

Sina SINA: The China-based Internet company reported disappointing first-quarter earnings on Wednesday. With its stock down, Cramer would not sell shares now.

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