Occidental Petroleum (OXY) is a low-cost player in oil and gas, especially in the Permian Basin. They can still make money even if crude stays below $60. They're also moving into carbon capture, with a large facility about to open in Texas. Buffett's Berkshire owns about 27% of OXY, worth $11B. Even with these strengths, OXY didn't make Motley Fool's current top 10 stock picks.