Diamondback Energy, INC. (FANG) SEC Filings — 2026 1 SEC filing for Diamondback Energy, INC. (FANG) in 2026. FilingsDiamondback Energy Files 8-K Report — 8-K · Apr 6, 2026 ExploreAll FANG Filings · FANG 2025 · All 2026 Filings