Occidental Petroleum leads 2026 oil and gas stocks with a 46% gain, narrowly beating peers and sector ETF.

In 2026, Occidental Petroleum led oil and gas stocks with a 46% gain, slightly ahead of EOG Resources and ConocoPhillips, both up 43%. The sector ETF XOP rose 45%, outperforming two of the three companies and nearly matching Occidental. This tight race suggests investors might prefer the diversified ETF over single stocks, as the premium for picking Occidental was modest. Going forward, investors should watch if Occidental pulls ahead or if the group remains closely matched, influencing whether to hold individual stocks or the ETF.