This is one stock Buffett simply cannot stop buying.Berkshire Hathaway (BRK.A 0.89%) (BRK.B 0.93%) has been accumulating a position in Occidental Petroleum (OXY 0.47%) for some time and now owns more than 27% of the oil company. In this video, I sit down with energy sector expert Tyler Crowe to take a closer look at whether Occidental could be a smart buy while it's trading at a 52-week low.*Stock prices used were the morning prices of Sept. 12, 2024. The video was published on Sept. 13, 2024. ...