Berkshire Hathaway boosts stake in Occidental Petroleum to about 28% December 22, 2023December 22, 2023
Buffett’s Berkshire Hathaway buys 5.99 million more Occidental shares September 28, 2022September 28, 2022
Stephen Chazen, long-time Occidental Petroleum executive, dies at 76 September 23, 2022September 23, 2022