As revealed by Q3 2023 securities filings, legendary investor Warren Buffett increased his holdings in Occidental Petroleum (NYSE: OXY), further solidifying Berkshire Hathaway‘s commitment to the energy giant. With consistent purchases in recent years, Buffett’s conglomerate now commands an impressive stake, nearing 28% of Occidental. Today, on January 8, the company’s shares experienced a notable decline at the market opening, reaching their lowest point in almost a month. What caused OXY’s drop?At the tim ...