Berkshire Hathaway Inc has increased its stake in Occidental Petroleum to 16.4%, acquiring over 795,000 shares valued at approximately $9 billion. This move comes as Occidental's stock experiences a 4.2% uptick, fueled by a robust quarterly free cash flow of $2.4 billion and year-to-date returns of 85.19%. Despite earlier volatility, Berkshire's investment underscores confidence in Occidental's strong financial performance and potential for significant earnings growth.