Berkshire Hathaway bought more stock in Occidental Petroleum in recent days, purchasing 3.7 million shares of the energy company and bringing its ownership to 211.7 million shares, a 23.5% stake, according to a filing late Monday.

Berkshire Hathaway (ticker: BRK.A, BRK.B) CEO Warren Buffett continues to take advantage of the weakness in oil and natural-gas prices to purchase stock in Occidental Petroleum (OXY) below $60 a share. 

Source: finance.yahoo.com