Warren Buffett increases his Occidental Petroleum stake: Does it have potential?

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Occidental Petroleum (NYSE: OXY) Delayed: 60.09 --0 (-0%)
Previous Close $60.09    52 Week High $78.48 
Open $60.09    52 Week Low $58.24 
Day High $60.09    P/E 8.19 
Day Low $60.09    EPS $7.34 
Volume 34,940