A recent decline in
Occidental Petroleum
share price could have prompted
Berkshire Hathaway
to add to its large stake in the big energy company.
Berkshire Hathaway (ticker: BRK.A, BRK.B) holds 188.4 million shares of Occidental Petroleum (OXY), a 20.2% stake. Berkshire has accumulated that interest this year, with its last purchases coming in early August.
Source: https://www.barrons.com/articles/warren-buffett-berkshire-hathaway-occidental-petroleum-stock-price-51664312979?siteid=yhoof2&yptr=yahoo