Warren Buffett's position in Occidental Petroleum (OXY) has grown to 255 million shares, valued at over $13 billion. Speculation is rising that Buffett may increase his holdings further, potentially causing a 3-4% spike in after-hours trading. The stock has shown volatility, with significant buy volume and a recent reversal attempt around the 50.35ish support and 51.31ish area. The Put/Call ratio stands at 17k/86k, indicating bullish sentiment among investors. Traders are watching the 200-Week SMA for potential buying opportunities.