Thompson Jere W III plan to sell securities of Diamondback Energy, Inc. under Form 144

Thompson Jere W III filed Form 144 to notify SEC of plan to sell 1000 units of Diamondback Energy, Inc. securities around 2026-05-15, with aggregate market value of $203,160.00. The total outstanding units is 281313297.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 03/06/2026, sold 750 units for $136260.00; On 03/16/2026, sold 750 units for $136851.00;