Occidental shares were up 0.5% to $48.61 Tuesday. The Berkshire equity portfolio of about $300 billion is overseen by CEO Warren Buffett. Oc

Occidental Petroleum (OXY) is not just another oil company. It’s a heavyweight in fossil fuel production, chemicals, and carbon capture

Berkshire Hathaway Inc. (NYSE: BRKa), led by Warren Buffett, increased its stake in Occidental Petroleum Corporation (NYSE: OXY) as the stock traded near two-year lows. A recent SEC filing revealed that Berkshire

Occidental Petroleum shares escaped a broader market downdraft Wednesday after Warren Buffett's Berkshire Hathaway disclosed it had bought more of the oil company's stock. Berkshire snapped up almost $36 million of Occidental shares late last week,

The Omaha, Nebraska-based conglomerate scooped up 763,000 shares of the Houston-based oil and gas producer on Friday for $35.7 million, according to a filing.