Diamondback Energy, Inc. issued a notice of redemption providing for the redemption of $650 million aggregate principal amount of the company?s 0.900% Senior Notes due 2023, representing all of the outstanding 2023 Notes, at a redemption price equal to 100% of the principal amount thereof, plus accrued and unpaid interest on the 2023 Notes redeemed to but not including the redemption date, which is scheduled for October 31, 2021. Payment of the redemption price is scheduled to be made on November 1, 2021.