X0609 4 2026-06-04 0001539838 Diamondback Energy, Inc. FANG 0002080063 SGF FANG Holdings, LP false C/O SGF CAPITAL LLC, KEVIN T. KEEN 8111 DOUGLAS AVE., SUITE 1200 DALLAS TX 75225 true 0002021141 Greth Lyndal false C/O SGF CAPITAL LLC, KEVIN T. KEEN 8111 DOUGLAS AVENUE, SUITE 1200 DALLAS TX 75225 true false Common Stock 2026-06-04 4 S 0 10000000 204.25 D 74036722 D On June 4, 2026, SGF FANG Holdings, LP, a Delaware limited partnership, sold 10,000,000 shares of common stock of Diamondback Energy, Inc., par value $0.01 per share, pursuant to Rule 144 under the Securities Act of 1933, as amended. /s/ Kevin T. Keen, Attorney in fact 2026-06-05