I believe Diamondback Energy (NASDAQ: FANG ) is, as they call themselves, a (must-own) Permian pure-play, with best-in-class execution, high-quality assets, and an investment-grade balance sheet, which we’ll look into below. Right now, the stock is trading at quite an interesting level, with theAs of 2025, I've got over 10 years of researching companies. In total, throughout my investing life, I estimate that I researched (in depth) well over 1000 companies, from commodities like oil, natural gas, gold and ...