Transaction Details

Footnotes

These securities were sold by TBS Legacy Investments, Ltd. in which the Stice 2023 Children's Trust holds 100% of the limited partnership units. Mr. Stice's adult children are the beneficiaries of the Stice 2023 Children's Trust. | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $140.91 per share to $141.89 per share, inclusive. The reporting person undertakes to provide to Diamondback Energy, Inc., any security holder of Diamondback Energy, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote and in footnotes 4 through 9. | The Stice 2023 Children's Trust for the benefit of Mr. Stice's adult children is the limited partner of TBS Legacy Investments, Ltd. Mr. Stice and his spouse serve as the trustees of the Stice 2023 Children's Trust and, as a result, may be deemed to have beneficial ownership of the securities in which their adult children have a pecuniary interest. Further, Stice Management, LLC serves as the general partner of TBS Legacy Investments, Ltd. Mr. Stice and his spouse hold 100% of the membership interests in Stice Management, LLC, of which Mr. Stice is the manager. | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $141.92 per share to $142.91 per share, inclusive. | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $143.00 per share to $143.92 per share, inclusive. | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $144.025 per share to $145.00 per share, inclusive. | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $145.08 per share to $146.025 per share, inclusive. | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $146.165 per share to $147.08 per share, inclusive. | The price reported in Column 4 is a weighted average sale price. These shares were sold in multiple transactions at prices ranging from $147.36 per share to $147.51 per share, inclusive. | These securities are held by Stice Investments, Ltd., which is managed by Stice Management, LLC, its general partner. Mr. Stice and his spouse hold 100% of the membership interests in Stice Management, LLC, of which Mr. Stice is the manager.