FANG / Diamondback Energy, Inc. - Документы SEC, Годовой отчет, Доверенное заявление

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Specif

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 4, 2025 DIAMONDBACK ENERGY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 4, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2025 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2025 FINANCIAL AND OPERATING RESULTS Midland, TX (August 4, 2025) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the second quarter ended June 30, 2025. SECOND QUARTER 2025 AND RECENT HIGHLIGHTS •Average oil production of 495.7 MBO/d (919.9 MBOE/d) •Net cas

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (August 4, 2025) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statements

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 10, 2025 DIAMONDBACK ENERGY,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 10, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numbe

Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 12, 2025 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission F

, 2025, by and among the Company, as borrower, the lenders and other parties party thereto, and Wells Fargo Bank, National Association, as administrative agent (incorporated by reference to Exhibit 10.

Exhibit 10.1 SIXTEENTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT This SIXTEENTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) dated as of June 12, 2025 is among: DIAMONDBACK ENERGY, INC., a Delaware corporation, as the Parent Guarantor (the “Parent Guarantor”), DIAMONDBACK E&P LLC, a Delaware limited liability company (the “Borrower”), each of the Len

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 2, 2025 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 June 2, 2025 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission Fi

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 21, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Speci

Diamondback Energy, Inc. Amended and Restated Senior Management Severance Plan, adopted effective as of April 6, 2025 (including a form of participation agreement attached thereto as Schedule C).

Exhibit 10.1 DIAMONDBACK ENERGY, INC. AMENDED AND RESTATED SENIOR MANAGEMENT SEVERANCE PLAN Effective as of April 6, 2025 TABLE OF CONTENTS Page ARTICLE 1 PURPOSE AND SCOPE 1 Section 1.1 Introduction 1 Section 1.2 Purpose 1 Section 1.3 Plan Status 1 ARTICLE 2 ELIGIBILITY FOR SEVERANCE BENEFITS 1 Section 2.1 Payments and Benefits upon an Eligible Termination (Unrelated to a Change in Control) 1 Sec

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (May 5, 2025) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statements and

DIAMONDBACK ENERGY, INC. ANNOUNCES FIRST QUARTER 2025 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES FIRST QUARTER 2025 FINANCIAL AND OPERATING RESULTS Midland, TX (May 5, 2025) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the first quarter ended March 31, 2025. FIRST QUARTER 2025 AND RECENT HIGHLIGHTS •Average oil production of 475.9 MBO/d (850.7 MBOE/d) •Net cash pro

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 5, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Number)

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 16, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

DIAMONDBACK ENERGY, INC. PROVIDES OPERATIONAL UPDATE FOR THE FIRST QUARTER OF 2025

Exhibit 99.1 DIAMONDBACK ENERGY, INC. PROVIDES OPERATIONAL UPDATE FOR THE FIRST QUARTER OF 2025 MIDLAND, Texas, April 16, 2025 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) provided an operational update for the first quarter of 2025. The Company is releasing this information to provide flexibility to opportunistically continue its stock repurchase pro

About Diamondback Core Values MESSAGE FROM OUR CHAIRMAN AND CEO PROXY SUMMARY PROPOSAL 1 ELECTION OF DIRECTORS CORPORATE GOVERNANCE MATTERS AUDIT COMMITTEE REPORT EXECUTIVE OFFICERS COMPENSATION DISCUSSION AND ANALYSIS COMPENSATION TABLES STOCK OWNER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Proxy Statement Definitiv

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )

DIAMONDBACK ENERGY, INC. - DEF A 14A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. ) Filed by the Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted b

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 9, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File

UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS

Exhibit 99.1 UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS On September 10, 2024, (the “Closing Date”), Diamondback Energy, Inc., (“Diamondback”, “we,” “us,” or “our”) completed the previously announced acquisition of Endeavor Parent, LLC (“Endeavor” and such acquisition, the “Acquisition”) by acquiring 100% of the equity interests in Endeavor (the “Endeavor Interests”). The aggregate consi

As filed with the Securities and Exchange Commission on April 7, 2025

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on April 7, 2025 Registration No.

Filing Fee Table.

Calculation of Filing Fee Tables S-3 Diamondback Energy, Inc. Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective

to the Form 8-K, File No 001-35700, filed by the Company with the SEC on March 21, 2025).

Exhibit 10.1 Execution version Term Loan Credit Agreement Dated as of March 21, 2025 among Diamondback Energy, Inc., as Parent Guarantor Diamondback E&P LLC, as Borrower, Bank of America, N.A., as Administrative Agent, and the Lenders party hereto BofA Securities, Inc., Barclays bank plc, pnc capital markets, llc and Td securities (usa) llc, as Joint Lead Arrangers and Joint Bookrunners barclays b

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 21, 2025 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission

, by and among the Company, as borrower, the lenders and other parties party thereto, and Wells Fargo Bank, National Association, as administrative agent (incorporated by reference to Exhibit 10.

Exhibit 10.2 EXECUTION VERSION FIFTEENTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT This FIFTEENTH AMENDMENT TO SECOND AMENDED AND RESTATED CREDIT AGREEMENT (this “Amendment”) dated as of March 21, 2025 is among: DIAMONDBACK ENERGY, INC., a Delaware corporation, as the Parent Guarantor (the “Parent Guarantor”), DIAMONDBACK E&P LLC, a Delaware limited liability company (the “Borrower

Third Supplemental Indenture, dated as of March 20, 2025, between Diamondback Energy, Inc., Diamondback E&P LLC and Computershare Trust Company, National Association, as Trustee (incorporated by reference to Exhibit 4.2 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on March 20, 2025).

Exhibit 4.2 DIAMONDBACK ENERGY, INC., as the Company, DIAMONDBACK E&P LLC, as the Subsidiary Guarantor, and COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION, as the Trustee 5.550% Senior Notes due 2035 THIRD SUPPLEMENTAL INDENTURE Dated as of March 20, 2025 to the INDENTURE Dated as of December 13, 2022 TABLE OF CONTENTS Page ARTICLE I SCOPE OF SUPPLEMENTAL INDENTURE; GENERAL; THE NOTES 2 SECTION

DIAMONDBACK ENERGY, INC. ANY GUARANTORS PARTY HERETO COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION Dated as of December 13, 2022 DEBT SECURITIES DIAMONDBACK ENERGY, INC. Certain Sections of this Indenture relating to Sections 310 through 318, inc

Exhibit 4.1 DIAMONDBACK ENERGY, INC. and ANY GUARANTORS PARTY HERETO to COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION Trustee INDENTURE Dated as of December 13, 2022 DEBT SECURITIES DIAMONDBACK ENERGY, INC. Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939 Trust Indenture Act Section Indenture Section Section 310(a)(1) 609 (a

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 March 20, 2025 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 March 6, 2025 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission F

Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc. Diamondback E&P LLCM(1) (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc.

PROSPECTUS SUPPLEMENT (to Prospectus dated November 21, 2022)

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(2) Registration File No. 333-268495 PROSPECTUS SUPPLEMENT (to Prospectus dated November 21, 2022) $1,200,000,000   DIAMONDBACK ENERGY, INC. 5.550% Senior Notes due 2035 Diamondback Energy, Inc., a Delaware Corporation (the “Company,” “Issuer,” “our,” “we,” or “us”) is offering $1,200,000,000 aggregate principal amount of its 5.550% senior notes due 2

Diamondback Energy Prices Offering of Senior Notes

Exhibit 99.1 Diamondback Energy Prices Offering of Senior Notes March 6, 2025 MIDLAND, Texas, March 6, 2025 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”) announced today that it has priced an offering (the “Notes Offering”) of $1,200,000,000 in aggregate principal amount of 5.550% senior notes that will mature on April 1, 2035 (the “Notes”). The price to the public is

DIAMONDBACK ENERGY, INC. $1,200,000,000 5.550% Senior Notes due 2035 UNDERWRITING AGREEMENT

Exhibit 1.1 DIAMONDBACK ENERGY, INC. $1,200,000,000 5.550% Senior Notes due 2035 UNDERWRITING AGREEMENT March 6, 2025 BofA Securities, Inc. Barclays Capital Inc. PNC Capital Markets LLC TD Securities (USA) LLC As Representatives of the several Underwriters named in Schedule A c/o BofA Securities, Inc. One Bryant Park New York, New York 10036 c/o Barclays Capital Inc. 745 Seventh Avenue New York, N

PRICING TERM SHEET $1,200,000,000 5.550% Senior Notes due 2035

Filed Pursuant to Rule 433 Registration No. 333-268495 March 6, 2025 PRICING TERM SHEET $1,200,000,000 5.550% Senior Notes due 2035 The information in this pricing term sheet supplements the registration statement and the preliminary prospectus supplement and supersedes the information in the registration statement and the preliminary prospectus supplement to the extent inconsistent with the infor

This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed. This preliminary pro

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration File No. 333-268495 This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Specified in Its Chart

Subsidiaries of the Registrant.

Exhibit 21.1 Diamondback Energy, Inc. Significant Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Diamondback E&P LLC Delaware Eclipse Merger Sub II, LLC Delaware Endeavor Energy Resources, L.P. Texas QEP Energy Company Delaware QEP Resources, Inc. Delaware Viper Energy Partners LLC Delaware

Insider Trading Policy.

Exhibit 19.1 INSIDER TRADING POLICY Introduction This Insider Trading Policy (the “Policy”) provides the standards of Diamondback Energy, Inc. (“Diamondback”), Viper Energy, Inc. (“Viper”) and their respective direct and indirect subsidiaries (collectively, the “Company”) on trading and causing the trading of any and all securities of the Company (“Company securities”) or the securities of other c

Sixth Amended and Restated Supplemental Policy Concerning Trading in Securities of the Company and its Subsidiaries by Certain Designated Persons.

Exhibit 19.2 DIAMONDBACK ENERGY, INC. SIXTH AMENDED AND RESTATED SUPPLEMENTAL POLICY CONCERNING TRADING IN SECURITIES OF THE COMPANY AND ITS SUBSIDIARIES BY CERTAIN DESIGNATED PERSONS (As adopted February 4, 2025) This policy supplements, and is in addition to, the Insider Trading Policy of Diamondback Energy, Inc. (Nasdaq: FANG) (the “Company”), Viper Energy, Inc. (Nasdaq: VNOM) (“Viper,” and col

, with respect to an audit of the proved reserves, future production and income attributable to certain royalty interests of Viper Energy, Inc., a subsidiary of Diamondback Energy, Inc., as of December 31, 202

Exhibit 99.2 VIPER ENERGY, INC. Estimated Future Reserves and Income Attributable to Certain Royalty Interests SEC Parameters As of December 31, 2024 /s/ Marsha E. Wellmann /s/ Raza Rizvi Marsha E. Wellmann, P.E. Raza Rizvi TBPELS License No. 116149 Senior Petroleum Engineer Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT COMPANY PETROLEUM CON

Description of the Company’s Securities

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following is a summary of common stock of Diamondback Energy, Inc. (the “Company,” “we,” “us,” and “our”), which is the only class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended. The following summary is not complete. You

Form of Performance-Vesting Restricted Stock Unit Agreement.

Exhibit 10.12 Restricted Stock Unit Award (#) O-PSU25- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) performance-based Restricted Stock Units (this “Performance Award”) under the Company’s 2021 Amended and Resta

Form of Time Vesting Restricted Stock Unit Award Agreement.

Exhibit 10.11 Restricted Stock Unit Award (#) O-RSU25- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) time-based Restricted Stock Units under the Company’s 2021 Amended and Restated Equity Incentive Plan (the “Pl

, with respect to an audit of the proved reserves, future production and income attributable to certain leasehold interests of Diamondback Energy, Inc. as of December 31, 202

Exhibit 99.1 DIAMONDBACK ENERGY, INC. Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2024 /s/ Marsha E. Wellmann /s/ Raza Rizvi Marsha E. Wellmann, P.E. Raza Rizvi TBPELS License No. 116149 Senior Petroleum Engineer Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT C

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 24, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File N

DIAMONDBACK ENERGY, INC. ANNOUNCES FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL AND OPERATING RESULTS; INCREASES BASE DIVIDEND

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES FOURTH QUARTER AND FULL YEAR 2024 FINANCIAL AND OPERATING RESULTS; INCREASES BASE DIVIDEND Midland, TX (February 24, 2025) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the fourth quarter and full year ended December 31, 2024. FOURTH QUARTER 2024 HIGHLIGHTS •Average prod

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (February 24, 2025) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statemen

DIAMONDBACK ENERGY, INC. ANNOUNCES LEADERSHIP TRANSITION PLAN AND ADDITIONAL UPDATES TO EXECUTIVE TEAM AND BOARD OF DIRECTORS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES LEADERSHIP TRANSITION PLAN AND ADDITIONAL UPDATES TO EXECUTIVE TEAM AND BOARD OF DIRECTORS • Travis D. Stice to step down as Chief Executive Officer, effective as of the Company’s 2025 Annual Meeting of Stockholders; will remain as Executive Chairman through the Company’s 2026 Annual Meeting of Stockholders • Kaes Van’t Hof, current President, will a

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 20, 2025 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commissi

500 WEST TEXAS AVENUE, SUITE 100 ∙ MIDLAND, TEXAS 79701

Exhibit 10.1 February 20, 2025 Travis D. Stice c/o Diamondback Energy, Inc. 500 West Texas Ave. Suite 100 Midland, TX 79701 Re: Service as Executive Chairman Dear Travis: On behalf of Diamondback Energy, Inc. (the “Company”) and its Board of Directors (the “Board”), I want to thank you for your many years of service to the Company, during which you have demonstrated remarkable leadership and have

Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 14, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File N

Diamondback Energy, Inc. Announces Midland Basin Acquisition

Exhibit 99.1 Diamondback Energy, Inc. Announces Midland Basin Acquisition MIDLAND, Texas, Feb. 18, 2024 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or “the Company”) today announced that it has entered into a definitive purchase agreement to acquire certain subsidiaries of Double Eagle IV Midco, LLC (“Double Eagle”) in exchange for approximately 6.9 million shares of

Executive Officers and Directors of Diamondback Energy, Inc. and Diamondback E&P LLC

EX-99.1 2 exhibit99-1.htm Executive Officers and Directors of Diamondback Energy, Inc. and Diamondback E&P LLC Name Class A Common Stock Beneficially Owned Percentage of Class Beneficially Owned Principal Occupation Travis D. Stice 106,169 * Chief Executive Officer and Chairman of the Board M. Kaes Van’t Hof 35,362 * President and Chief Financial Officer Daniel N. Wesson 2,500 * Executive Vice Pre

DIAMONDBACK ENERGY, INC. ANNOUNCES APPOINTMENT TO THE BOARD OF DIRECTORS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES APPOINTMENT TO THE BOARD OF DIRECTORS Midland, Texas, February 3, 2025 (GLOBE NEWSWIRE) – Travis Stice, Chief Executive Officer and Chairman of the Board of Directors (the “Board”) of Diamondback Energy, Inc. (NASDAQ: FANG) ("Diamondback" or the "Company"), is pleased to announce that effective February 3, 2025, the Company added Darin G. Holderness

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 3, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 13, 2025 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

FANG / Diamondback Energy, Inc. / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

SC 13G/A 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Diamondback Energy, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 25278X109 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of this Statement) Check the appropriate

JOINT FILING AGREEMENT

EX-99 2 Rule13DJointFilingAgreement.htm JOINT FILING AGREEMENT JOINT FILING AGREEMENT The undersigned hereby agree that this Schedule 13G (the “Schedule 13G”) with respect to the common stock of Diamondback Energy, Inc. is, and any additional amendment thereto signed by each of the undersigned shall be, filed on behalf of each undersigned pursuant to and in accordance with the provisions of 13d-1(

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As S

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 4, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (November 4, 2024) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statement

DIAMONDBACK ENERGY, INC. ANNOUNCES THIRD QUARTER 2024 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES THIRD QUARTER 2024 FINANCIAL AND OPERATING RESULTS Midland, TX (November 4, 2024) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the third quarter ended September 30, 2024. THIRD QUARTER 2024 HIGHLIGHTS •As previously announced, closed merger with Endeavor Energy Resource

FANG / Diamondback Energy, Inc. / STATE STREET CORP Passive Investment

SC 13G/A 1 DiamondbackEnergyInc.htm SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* DIAMONDBACK ENERGY INC (Name of Issuer) COMMON STOCK (Title of Class of Securities) 25278X109 (CUSIP Number) September 30, 2024 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to designate the rule p

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 10, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

Diamondback Energy, Inc. Announces Revised Third Quarter Production and Capital Guidance

Exhibit 99.1 Diamondback Energy, Inc. Announces Revised Third Quarter Production and Capital Guidance Midland, TX (October 1, 2024) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced revised Q3 2024 production and capital guidance. This guidance has been updated to give effect to the Endeavor Energy Resources, L.P. (“Endeavor”) merger, which was completed on

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 1, 2024 DIAMONDBACK ENERG

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 1, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Num

FANG / Diamondback Energy, Inc. / Greth Lyndal - SC 13D/A Activist Investment

SC 13D/A 1 ef20036278sc13da.htm SC 13D/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D/A Under the Securities Exchange Act of 1934 (Amendment No. 1)* Diamondback Energy, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Titles of Class of Securities) 25278X109 (CUSIP Number) Hillary H. Holmes 811 Main Street, Suite 3000 Houston, Texas 77002 (346)

Diamondback Energy Announces Launch of Secondary Common Stock Offering

Exhibit 99.1 Diamondback Energy Announces Launch of Secondary Common Stock Offering September 19, 2024 MIDLAND, Texas, September 19, 2024 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”) announced today the launch of an underwritten public offering of 11,270,000 shares of its common stock by certain Legacy Endeavor Stockholders (the “Selling Stockholders”), subject to mar

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 September 19, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commiss

12,770,000 Shares of Common Stock DIAMONDBACK ENERGY, INC. Common Stock UNDERWRITING AGREEMENT

Exhibit 1.1 Execution Version 12,770,000 Shares of Common Stock DIAMONDBACK ENERGY, INC. Common Stock UNDERWRITING AGREEMENT September 19, 2024 EVERCORE GROUP L.L.C. CITIGROUP GLOBAL MARKETS INC. J.P. MORGAN SECURITIES LLC As Representatives of the Several Underwriters, c/o Evercore Group L.L.C. 55 East 52nd Street New York, NY 10055 c/o Citigroup Global Markets Inc. 388 Greenwich Street New York,

Diamondback Energy Announces Pricing of Upsized Secondary Common Stock Offering

Exhibit 99.2 Diamondback Energy Announces Pricing of Upsized Secondary Common Stock Offering September 19, 2024 MIDLAND, Texas, September 19, 2024 (GLOBE NEWSWIRE) – Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”) announced today the upsize and pricing of an underwritten public offering of 12,770,000 shares of its common stock (the “Secondary Offering”) by certain Legacy Endeavor Stockhold

  PROSPECTUS SUPPLEMENT 12,770,000 Shares

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(7) Registration File No. 333-282225   PROSPECTUS SUPPLEMENT   12,770,000 Shares   Diamondback Energy, Inc.   Common Stock This prospectus supplement relates to the resale of up to an aggregate of 12,770,000 shares of common stock of Diamondback Energy, Inc., a Delaware corporation, by the securityholders named in this prospectus supplement (the “sell

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 18, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File

Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K/A (Amendment No. 1) CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 September 9, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of inco

UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS

Exhibit 99.2 UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS On September 10, 2024, (the “Closing Date”), Diamondback Energy, Inc., (“Diamondback”, “we,” “us,” or “our”) completed the previously announced acquisition of Endeavor Parent, LLC (“Endeavor” and such acquisition, the “Acquisition”) by acquiring 100% of the equity interests in Endeavor (the “Endeavor Interests”). The aggregate consider

SUBJECT TO COMPLETION, DATED SEPTEMBER 19, 2024 PRELIMINARY PROSPECTUS SUPPLEMENT 11,270,000 Shares

TABLE OF CONTENTS The information in this prospectus supplement is not complete and may be changed.

Fifth Amended and Restated Bylaws of the Company, adopted as of September 18, 2024 (incorporated by reference to Exhibit 3.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on September 18, 2024).

Exhibit 3.1 FIFTH AMENDED AND RESTATED BYLAWS OF DIAMONDBACK ENERGY, INC. A DELAWARE CORPORATION (THE “CORPORATION”) ADOPTED AS OF SEPTEMBER 18, 2024 FIFTH AMENDED AND RESTATED BYLAWS OF DIAMONDBACK ENERGY, INC. ARTICLE I OFFICES Section 1.1 Registered Office. The registered office of the Corporation within the State of Delaware shall be located at either (a) the principal place of business of the

As filed with the Securities and Exchange Commission on September 19, 2024

S-3ASR 1 ny20035826x1s3asr.htm S-3ASR TABLE OF CONTENTS As filed with the Securities and Exchange Commission on September 19, 2024 Registration No. 333-   UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter)         Delaware     45-4502

Endeavor Parent, LLC

Exhibit 99.1 Endeavor Parent, LLC Interim Report Six Months Ended June 30, 2024 and 2023 ENDEAVOR PARENT, LLC INTERIM REPORT FOR THE SIX MONTHS ENDED JUNE 30, 2024 TABLE OF CONTENTS Page Consolidated Balance Sheets 1 Consolidated Statements of Operations and Comprehensive Income (loss) 2 Consolidated Statements of Members’ Equity and Accumulated Other Comprehensive Income (loss) 3 Consolidated Sta

Table 1: Newly Registered and Carry Forward Securities

Calculation of Filing Fee Tables S-3 Diamondback Energy, Inc. Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered Proposed Maximum Offering Price Per Unit Maximum Aggregate Offering Price Fee Rate Amount of Registration Fee Carry Forward Form Type Carry Forward File Number Carry Forward Initial Effective

JOINT ACQUISITION STATEMENT PURSUANT TO RULE 13d-1(k)(1)

EX-99.1 2 ef20035853ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 JOINT ACQUISITION STATEMENT PURSUANT TO RULE 13d-1(k)(1) The undersigned acknowledge and agree that the foregoing statement on Schedule 13D is filed on behalf of each of the undersigned and that all subsequent amendments to this statement on Schedule 13D shall be filed on behalf of each of the undersigned without the necessity of filing addi

FANG / Diamondback Energy, Inc. / Greth Lyndal - SC 13D Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 (Amendment No. )* Diamondback Energy, Inc. (Name of Issuer) Common Stock, par value $0.01 per share (Titles of Class of Securities) 25278X109 (CUSIP Number) Hillary H. Holmes 811 Main Street, Suite 3000 Houston, Texas 77002 (346) 718-6600 (Name, Address and Telephone Numbe

POWER OF ATTORNEY

EX-99.2 3 ef20035853ex99-2.htm EXHIBIT 99.2 Exhibit 99.2 POWER OF ATTORNEY The undersigned hereby constitute and appoint Lyndal Stephens Greth, and each of them, the lawful attorneys-in-fact and agents with full power and authority to execute and file on the undersigned’s behalf, any and all instruments including Forms 3, 4 and 5, and Schedules 13D and 13G (collectively, the “Filings”), and any am

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 September 9, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 September 9, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commissi

Stockholders Agreement, by and among the Company and the initial stockholders named therein, dated September 10, 2024 (incorporated by reference to Exhibit 10.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on September 10, 2024).

Exhibit 10.1 EXECUTION VERSION STOCKHOLDERS AGREEMENT DATED AS OF SEPTEMBER 10, 2024 TABLE OF CONTENTS Page ARTICLE I INTRODUCTORY MATTERS 1 1.1 Defined Terms 1 1.2 Other Defined Terms 7 1.3 Construction 8 ARTICLE II CORPORATE GOVERNANCE MATTERS 9 2.1 Composition of the Board 9 2.2 Qualification of Stephens Designee 10 2.3 Service on Specified Boards 11 2.4 Resignations 11 2.5 Committee 12 ARTICLE

Diamondback Energy, Inc. Closes Merger with Endeavor Energy Resources, L.P.

Exhibit 99.1 Diamondback Energy, Inc. Closes Merger with Endeavor Energy Resources, L.P. September 10, 2024 MIDLAND, Texas, September 10, 2024 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), today announced that it has closed its merger with Endeavor Energy Resources, L.P. (“Endeavor”). “We are pleased to announce the closing of this transformative merger, creating a ‘m

Certificate of Amendment No. 1 to Second Amended and Restated Certificate of Incorporation of the Company (incorporated by reference to Exhibit 3.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on September 10, 2024).

Exhibit 3.1 Certificate of Amendment No. 1 to the Second Amended and Restated Certificate of Incorporation of Diamondback Energy, Inc. (Pursuant to Section 242 of the General Corporation Law of the State of Delaware) Diamondback Energy, Inc., a corporation organized and existing under the laws of the State of Delaware (the “Corporation”), hereby certifies as follows: 1. The name of the Corporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Specif

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 5, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (August 5, 2024) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statements

DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2024 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2024 FINANCIAL AND OPERATING RESULTS Midland, TX (August 5, 2024) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the second quarter ended June 30, 2024. SECOND QUARTER 2024 HIGHLIGHTS •Average production of 276.1 MBO/d (474.7 MBOE/d) •Net cash provided by o

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 11, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numbe

Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 6, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Number

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Speci

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 30, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (April 30, 2024) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statements

DIAMONDBACK ENERGY, INC. ANNOUNCES FIRST QUARTER 2024 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES FIRST QUARTER 2024 FINANCIAL AND OPERATING RESULTS Midland, TX (April 30, 2024) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the first quarter ended March 31, 2024. FIRST QUARTER 2024 HIGHLIGHTS •Average production of 273.3 MBO/d (461.1 MBOE/d) •Net cash provided by ope

Diamondback Energy, Inc. Receives Stockholder Approval for Proposed Transaction with Endeavor Energy Resources, L.P.

Exhibit 99.1 Diamondback Energy, Inc. Receives Stockholder Approval for Proposed Transaction with Endeavor Energy Resources, L.P. MIDLAND, Texas, April 26, 2024 (GLOBAL NEWSWIRE) – Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced that its stockholders have approved the issuance of shares of Diamondback common stock in connection with the proposed business co

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 26, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission

PROXY SUMMARY PROPOSAL 1 ELECTION OF DIRECTORS CORPORATE GOVERNANCE MATTERS AUDIT COMMITTEE REPORT EXECUTIVE OFFICERS COMPENSATION DISCUSSION AND ANALYSIS COMPENSATION TABLES STOCK OWNERSHIP STOCK PERFORMANCE GRAPH CERTAIN RELATIONSHIPS AND RELATED T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Proxy Statement Definitiv

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 14A PROXY STATEMENT PURSUANT TO SECTION 14(a) OF THE SECURITIES EXCHANGE ACT OF 1934 (Amendment No.

DIAMONDBACK ENERGY, INC., as the Company, DIAMONDBACK E&P LLC, as the Subsidiary Guarantor, COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION, as the Trustee 5.200% Senior Notes due 2027 5.150% Senior Notes due 2030 5.400% Senior Notes due 2034 5.750

Exhibit 4.2 EXECUTION VERSION DIAMONDBACK ENERGY, INC., as the Company, DIAMONDBACK E&P LLC, as the Subsidiary Guarantor, and COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION, as the Trustee 5.200% Senior Notes due 2027 5.150% Senior Notes due 2030 5.400% Senior Notes due 2034 5.750% Senior Notes due 2054 5.900% Senior Notes due 2064 SECOND SUPPLEMENTAL INDENTURE Dated as of April 18, 2024 to the

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 18, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission

Second Supplemental Indenture, dated as of April 18, 2024, between Diamondback Energy, Inc., Diamondback E&P LLC and Computershare Trust Company, National Association, as Trustee (including the form of the Notes (incorporated by reference to Exhibit 4.2 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on April 18, 2024).

Exhibit 4.2 EXECUTION VERSION DIAMONDBACK ENERGY, INC., as the Company, DIAMONDBACK E&P LLC, as the Subsidiary Guarantor, and COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION, as the Trustee 5.200% Senior Notes due 2027 5.150% Senior Notes due 2030 5.400% Senior Notes due 2034 5.750% Senior Notes due 2054 5.900% Senior Notes due 2064 SECOND SUPPLEMENTAL INDENTURE Dated as of April 18, 2024 to the

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 18, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 18, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 April 9, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission F

DIAMONDBACK ENERGY, INC. $850,000,000 5.200% Senior Notes due 2027

Exhibit 1.1 Execution Version DIAMONDBACK ENERGY, INC. $850,000,000 5.200% Senior Notes due 2027 $850,000,000 5.150% Senior Notes due 2030 $1,300,000,000 5.400% Senior Notes due 2034 $1,500,000,000 5.750% Senior Notes due 2054 $1,000,000,000 5.900% Senior Notes due 2064 UNDERWRITING AGREEMENT April 9, 2024 Citigroup Global Markets Inc. BofA Securities, Inc. TD Securities (USA) LLC As Representativ

Diamondback Energy Prices Offering of Senior Notes

Exhibit 99.1 Diamondback Energy Prices Offering of Senior Notes April 9, 2024 MIDLAND, Texas, April 9, 2024 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”) announced today that it has priced an offering (the “Notes Offering”) of $850,000,000 in aggregate principal amount of 5.200% senior notes that will mature on April 18, 2027 (the “2027 Notes”), $850,000,000 in aggrega

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

DIAMONDBACK ENERGY, INC. $850,000,000 5.200% Senior Notes due 2027

Exhibit 1.1 Execution Version DIAMONDBACK ENERGY, INC. $850,000,000 5.200% Senior Notes due 2027 $850,000,000 5.150% Senior Notes due 2030 $1,300,000,000 5.400% Senior Notes due 2034 $1,500,000,000 5.750% Senior Notes due 2054 $1,000,000,000 5.900% Senior Notes due 2064 UNDERWRITING AGREEMENT April 9, 2024 Citigroup Global Markets Inc. BofA Securities, Inc. TD Securities (USA) LLC As Representativ

Exhibit 99.1

Exhibit 99.1 Diamondback Energy Prices Offering of Senior Notes April 9, 2024 MIDLAND, Texas, April 9, 2024 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”) announced today that it has priced an offering (the “Notes Offering”) of $850,000,000 in aggregate principal amount of 5.200% senior notes that will mature on April 18, 2027 (the “2027 Notes”), $850,000,000 in aggrega

Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc. Diamondback E&P LLC(1) (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc.

PROSPECTUS SUPPLEMENT (to Prospectus dated November 21, 2022)

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(2) Registration File No. 333-268495 PROSPECTUS SUPPLEMENT (to Prospectus dated November 21, 2022) $5,500,000,000   DIAMONDBACK ENERGY, INC. $850,000,000 5.200% Senior Notes due 2027 $850,000,000 5.150% Senior Notes due 2030 $1,300,000,000 5.400% Senior Notes due 2034 $1,500,000,000 5.750% Senior Notes due 2054 $1,000,000,000 5.900% Senior Notes due 2

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 10, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

PRICING TERM SHEET $850,000,000 5.200% Senior Notes due 2027 $850,000,000 5.150% Senior Notes due 2030 $1,300,000,000 5.400% Senior Notes due 2034 $1,500,000,000 5.750% Senior Notes due 2054 $1,000,000,000 5.900% Senior Notes due 2064

Filed Pursuant to Rule 433 Registration No. 333-268495 April 9, 2024 PRICING TERM SHEET $850,000,000 5.200% Senior Notes due 2027 $850,000,000 5.150% Senior Notes due 2030 $1,300,000,000 5.400% Senior Notes due 2034 $1,500,000,000 5.750% Senior Notes due 2054 $1,000,000,000 5.900% Senior Notes due 2064 The information in this pricing term sheet supplements the registration statement and the prelim

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULES OF ENDEAVOR PARENT, LLC

Exhibit 99.1 INDEX TO CONSOLIDATED FINANCIAL STATEMENTS AND SUPPLEMENTAL SCHEDULES OF ENDEAVOR PARENT, LLC Page REPORT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS F-2 Consolidated Balance Sheets as of December 31, 2023 and 2022 F-5 Consolidated Statements of Operations and Comprehensive Income for the Years Ended December 31, 2023, 2022 and 2021 F-6 Consolidated Statements of Members’ Equity for t

MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ENDEAVOR

Exhibit 99.2 MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS OF ENDEAVOR Recent developments Endeavor Parent, LLC’s (together with its subsidiaries, “Endeavor”) board of managers voted to convert Endeavor’s U.S. federal income tax status from an S-Corporation to a C-Corporation effective January 1, 2024. The members of Endeavor also consented to the conversion

This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed. This preliminary pro

TABLE OF CONTENTS Filed Pursuant to Rule 424(b)(5) Registration File No. 333-268495 This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed. This preliminary prospectus supplement and the accompanying prospectus are not an offe

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 April 8, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 April 8, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission F

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box:  ☐ Preliminary Proxy Statement  ☐ Con

CALCULATION OF FILING FEE TABLE Schedule 14A (Form Type) Diamondback Energy, Inc. (Exact Name of Registrant as Specific in its Charter) Table 1: Transaction Valuation

Exhibit 107 CALCULATION OF FILING FEE TABLE Schedule 14A (Form Type) Diamondback Energy, Inc.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A (Rule 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ☒ Filed by a Party other than the Registrant  ☐ Check the appropriate box: ☒ Preliminary Proxy Statement  ☐ Conf

Diamondback Energy, Inc. 500 West Texas Ave., Suite 1200 Midland, TX 79701

Exhibit 2.1 Diamondback Energy, Inc. 500 West Texas Ave., Suite 1200 Midland, TX 79701 March 18, 2024 Endeavor Parent, LLC 110 N. Marienfeld Street Midland, TX 79701 Attention: William F. Krueger, Vice President and General Counsel E-mail: [email protected] Endeavor Manager, LLC 110 N. Marienfeld Street Midland, TX 79701 Attention: William F. Krueger, Vice President and General Counsel E-mail

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 March 18, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 March 18, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 March 18, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission

Letter Agreement, amending the Merger Agreement, by and among the Company, Endeavor, Merger Sub I, Merger Sub II and the Company Representative, dated March 18, 2024 (incorporated by reference to Exhibit 2.1 to the Form 8-K, File No 001-35700, filed by the Company with the SEC on March 18, 2024).

Exhibit 2.1 Diamondback Energy, Inc. 500 West Texas Ave., Suite 1200 Midland, TX 79701 March 18, 2024 Endeavor Parent, LLC 110 N. Marienfeld Street Midland, TX 79701 Attention: William F. Krueger, Vice President and General Counsel E-mail: [email protected] Endeavor Manager, LLC 110 N. Marienfeld Street Midland, TX 79701 Attention: William F. Krueger, Vice President and General Counsel E-mail

VNOM / Viper Energy, Inc. / Diamondback Energy, Inc. Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D (Rule 13d-101) Under the Securities Exchange Act of 1934 (Amendment No.

VNOM / Viper Energy, Inc. / Diamondback Energy, Inc. Activist Investment

SC 13D/A 1 formsc13da-viper.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D (Rule 13d-101) Under the Securities Exchange Act of 1934 (Amendment No. 1)* INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULE 13d-1(a) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2(a) Viper Energy, Inc. (Name of Issuer) Class A Common Stock, $0.000001 Par Value (Ti

Fourteenth Amendment to Second Amended and Restated Credit Agreement, dated as of March 6, 2024, by and among the Company, as borrower, the lenders and other parties party thereto, and Wells Fargo Bank, National Association, as administrative agent (incorporated by reference to Exhibit 10.2 to the Form 8-K, File No 001-35700, filed by the Company with the SEC on March 6, 2024).

Exhibit 10.2 EXECUTION VERSION Fourteenth Amendment to Second Amended and Restated Credit Agreement Dated as of March 6, 2024 among Diamondback Energy, Inc., as Parent Guarantor Diamondback E&P LLC, as Borrower, Wells Fargo Bank, National Association, as Administrative Agent, and The Lenders Party Hereto Wells Fargo Securities, LLC, As Sole Book runner And Sole Lead Arranger PNC Bank, National Ass

Term Loan Credit Agreement, dated as of February 29, 2024, by and among the Company,

Exhibit 10.1 EXECUTION VERSION Term loan credit agreement Dated as of february 29, 2024 among diamondback energy, inc., as parent guarantor diamondback e&p lLC, as borrower, citibank, n.a., as administrative agent, and the lenders party hereto citibank, n.a., BofA securities, inc., The toronto-dominion bank, new york branch, goldman sachs bank usa, morgan stanley senior funding, inc. And wells far

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 29, 2024 Date of Report (date of earliest event reported) Diamondback Energy, Inc. (Exact name of Registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commissi

Fourteenth Amendment to Second Amended and Restated Credit Agreement Dated as of March 6, 2024 Diamondback Energy, Inc., as Parent Guarantor Diamondback E&P LLC, as Borrower, Wells Fargo Bank, National Association, as Administrative Agent, The Lender

Exhibit 10.2 EXECUTION VERSION Fourteenth Amendment to Second Amended and Restated Credit Agreement Dated as of March 6, 2024 among Diamondback Energy, Inc., as Parent Guarantor Diamondback E&P LLC, as Borrower, Wells Fargo Bank, National Association, as Administrative Agent, and The Lenders Party Hereto Wells Fargo Securities, LLC, As Sole Book runner And Sole Lead Arranger PNC Bank, National Ass

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 29, 2024 Date of Report (date of earliest event reported) Diamondback Ener

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 February 29, 2024 Date of Report (date of earliest event reported) Diamondback Energy, Inc. (Exact name of Registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commissi

Term loan credit agreement Dated as of february 29, 2024 diamondback energy, inc., as parent guarantor diamondback e&p lLC, as borrower, citibank, n.a., as administrative agent, the lenders party hereto citibank, n.a., BofA securities, inc., The toro

Exhibit 10.1 EXECUTION VERSION Term loan credit agreement Dated as of february 29, 2024 among diamondback energy, inc., as parent guarantor diamondback e&p lLC, as borrower, citibank, n.a., as administrative agent, and the lenders party hereto citibank, n.a., BofA securities, inc., The toronto-dominion bank, new york branch, goldman sachs bank usa, morgan stanley senior funding, inc. And wells far

, with respect to an audit of the proved reserves, future production and income attributable to certain leasehold interests of Diamondback Energy, Inc. as of

Exhibit 99.1 DIAMONDBACK ENERGY, INC. Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2023 /s/ Marsha E. Wellmann /s/ Raza Rizvi Marsha E. Wellmann, P.E. Raza Rizvi TBPELS License No. 116149 Senior Petroleum Engineer Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT C

Subsidiaries of the Registrant.

Exhibit 21.1 Diamondback Energy, Inc. Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Diamondback E&P LLC Delaware QEP Energy Company Delaware QEP Resources, Inc. Delaware Viper Energy Partners LLC Delaware

2024 Form of Time Vesting Restricted Stock Unit Award Agreement (incorporated by reference to Exhibit 10.9 to the Form 10-K, File No. 001-35700, filed by the Company with the SEC on February 22, 2024).

Exhibit 10.9 Restricted Stock Unit Award (#) O-RSU24- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) time-based Restricted Stock Units under the Company’s 2021 Amended and Restated Equity Incentive Plan (the “Pla

Amendment No. 1 to Diamondback Energy, Inc. Amended and Restated Senior Management Severance Plan, adopted effective as of February 11, 2024.

Exhibit 10.13 DIAMONDBACK ENERGY, INC. AMENDED AND RESTATED SENIOR MANAGEMENT SEVERANCE PLAN AMENDMENT NO. 1 This Amendment No. 1 (this “Amendment”) to the Diamondback Energy, Inc. Amended and Restated Senior Management Severance Plan (the “Plan”) is dated and effective as of February 11, 2024. 1. Amendment. Section 9.1(i) of the Plan is hereby amended to add the following paragraph at the end of

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Specified in Its Chart

with respect to an audit of the proved reserves, future production and income attributable to certain royalty interests of

Exhibit 99.2 VIPER ENERGY, INC. Estimated Future Reserves and Income Attributable to Certain Royalty Interests SEC Parameters As of December 31, 2023 /s/ Marsha E. Wellmann /s/ Raza Rizvi Marsha E. Wellmann, P.E. Raza Rizvi TBPELS License No. 116149 Senior Petroleum Engineer Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT COMPANY PETROLEUM CON

escription of the Co

Exhibit 4.1 DESCRIPTION OF THE REGISTRANT’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following is a summary of common stock of Diamondback Energy, Inc. (the “Company,” “we,” “us,” and “our”), which is the only class of securities registered under Section 12 of the Securities Exchange Act of 1934, as amended. The following summary is not complete. You

Amendment No. 1 to 2021 Amended and Restated Diamondback Energy, Inc. Equity Incentive Plan

Exhibit 10.2 2021 AMENDED AND RESTATED DIAMONDBACK ENERGY, INC. EQUITY INCENTIVE PLAN AMENDMENT NO. 1 This Amendment No. 1 (this “Amendment”) to the Amended and Restated Diamondback Energy, Inc. Equity Incentive Plan (the “Plan”) is dated and effective as of February 11, 2024. 1. Amendment. Section 2(h) of the Plan is hereby amended to add the following paragraph at the end of the existing text: F

Diamondback Energy Inc. Clawback Policy

Exhibit 97.1 DIAMONDBACK ENERGY, INC. CLAWBACK POLICY (Effective Date: October 2, 2023) Purpose Diamondback Energy, Inc. (the “Company”) is committed to conducting business with integrity, in accordance with high ethical standards and in compliance with all applicable laws, rules and regulations, including those regarding the presentation of the Company’s financial information to the public. As a

2024 Form of Performance-Vesting Restricted Stock Unit Agreement (incorporated by reference to Exhibit 10.10 to the Form 10-K, File No. 001-35700, filed by the Company with the SEC on February 22, 2024).

Exhibit 10.10 Restricted Stock Unit Award (#) O-PSU24- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) performance-based Restricted Stock Units (this “Performance Award”) under the Company’s 2021 Amended and Resta

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No.  ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

DIAMONDBACK ENERGY, INC. ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES FOURTH QUARTER AND FULL YEAR 2023 FINANCIAL AND OPERATING RESULTS Midland, TX (February 20, 2024) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the fourth quarter and full year ended December 31, 2023. FOURTH QUARTER 2023 HIGHLIGHTS •Average production of 273.1 MBO/d (46

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (February 20, 2024) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statemen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 20, 2024 DIAMONDBACK ENE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 20, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File N

FANG / Diamondback Energy, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0755-diamondbackenergyinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 10)* Name of issuer: Diamondback Energy Inc Title of Class of Securities: Common Stock CUSIP Number: 25278X109 Date of Event Which Requires Filing of this Statement: December 29, 2023 Check the appropriate box to

Agreement and Plan of Merger, dated as of February 11, 2024, by and among the Company, Endeavor, Merger Sub I, Merger Sub II and the Company Representative (for purposes of certain sections set forth therein) (incorporated by reference to Exhibit 2.1 to the Form 8-K, File No 001-35700, filed by the Company with the SEC on February 12, 2024).

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER among DIAMONDBACK ENERGY, INC. ECLIPSE MERGER SUB I, LLC, ECLIPSE MERGER SUB II, LLC ENDEAVOR MANAGER, LLC (solely for purposes of Section 1.8, Section 2.2, Section 2.3, Section 5.10, Section 5.22, Section 5.23, Section 8.2, Section 8.6, Section 8.7, Section 8.8, and Section 8.9), and ENDEAVOR PARENT, LLC Dated as of February 11, 2024 TABLE OF CONTENTS Page

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 February 11, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 February 11, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commissi

STOCKHOLDERS AGREEMENT DATED AS OF [●], 202[●] Table of Contents

Exhibit 99.1 FINAL FORM STOCKHOLDERS AGREEMENT DATED AS OF [●], 202[●] Table of Contents Page Article I INTRODUCTORY MATTERS 2 1.1 Defined Terms 2 1.2 Other Defined Terms 8 1.3 Construction 9 Article II CORPORATE GOVERNANCE MATTERS 9 2.1 Composition of the Board 9 2.2 Qualification of Stephens Designee 10 2.3 Service on Specified Boards 11 2.4 Resignations 12 2.5 Committee 12 Article III VOTING MA

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

1 Creating the Must-Own Permian Pure Play February 12, 2024 Cautionary Statement Forward-Looking Statements This communication contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Sect

Exhibit 99.3 1 Creating the Must-Own Permian Pure Play February 12, 2024 Cautionary Statement Forward-Looking Statements This communication contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act of 1934, as amended, which involve risks, uncertainties, and assumptions. All statements, other than statemen

AGREEMENT AND PLAN OF MERGER DIAMONDBACK ENERGY, INC. ECLIPSE MERGER SUB I, LLC, ECLIPSE MERGER SUB II, LLC ENDEAVOR MANAGER, LLC (solely for purposes of Section 1.8, Section 2.2, Section 2.3, Section 5.10, Section 5.22, Section 5.23, Section 8.2, Se

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER among DIAMONDBACK ENERGY, INC. ECLIPSE MERGER SUB I, LLC, ECLIPSE MERGER SUB II, LLC ENDEAVOR MANAGER, LLC (solely for purposes of Section 1.8, Section 2.2, Section 2.3, Section 5.10, Section 5.22, Section 5.23, Section 8.2, Section 8.6, Section 8.7, Section 8.8, and Section 8.9), and ENDEAVOR PARENT, LLC Dated as of February 11, 2024 TABLE OF CONTENTS Page

1 Creating the Must-Own Permian Pure Play February 12, 2024 Cautionary Statement Forward-Looking Statements This communication contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Sect

Exhibit 99.3 1 Creating the Must-Own Permian Pure Play February 12, 2024 Cautionary Statement Forward-Looking Statements This communication contains “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Exchange Act of 1934, as amended, which involve risks, uncertainties, and assumptions. All statements, other than statemen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 February 11, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934 February 11, 2024 Date of Report (Date of Earliest Event Reported) DIAMONDBACK ENERGY, INC. (Exact name of registrant as specified in its charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commissi

Diamondback Energy, Inc. and Endeavor Energy Resources, L.P. to Merge to Create a Premier Permian Independent Oil and Gas Company

Exhibit 99.2 Diamondback Energy, Inc. and Endeavor Energy Resources, L.P. to Merge to Create a Premier Permian Independent Oil and Gas Company MIDLAND, Texas, Feb. 12, 2024 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) and Endeavor Energy Resources, L.P. (“Endeavor”), today announced that they have entered into a definitive merger agreement under which

STOCKHOLDERS AGREEMENT DATED AS OF [●], 202[●] Table of Contents

Exhibit 99.1 FINAL FORM STOCKHOLDERS AGREEMENT DATED AS OF [●], 202[●] Table of Contents Page Article I INTRODUCTORY MATTERS 2 1.1 Defined Terms 2 1.2 Other Defined Terms 8 1.3 Construction 9 Article II CORPORATE GOVERNANCE MATTERS 9 2.1 Composition of the Board 9 2.2 Qualification of Stephens Designee 10 2.3 Service on Specified Boards 11 2.4 Resignations 12 2.5 Committee 12 Article III VOTING MA

Diamondback Energy, Inc. and Endeavor Energy Resources, L.P. to Merge to Create a Premier Permian Independent Oil and Gas Company

Exhibit 99.2 Diamondback Energy, Inc. and Endeavor Energy Resources, L.P. to Merge to Create a Premier Permian Independent Oil and Gas Company MIDLAND, Texas, Feb. 12, 2024 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) and Endeavor Energy Resources, L.P. (“Endeavor”), today announced that they have entered into a definitive merger agreement under which

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. )

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. ) Filed by the Registrant ☑ Filed by a Party other than the Registrant ☐ Check the appropriate box: ☐ Preliminary Proxy Statement ☐ Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)

FANG / Diamondback Energy, Inc. / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

SC 13G 1 SEC13GFiling.htm SEC SCHEDULE 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Diamondback Energy, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 25278X109 (CUSIP Number) December 29, 2023 (Date of Event Which Requires Filing of this Statement) Check the appropriate box t

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): January 10, 2024 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 6, 2023 DIAMONDBACK ENER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 6, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

DIAMONDBACK ENERGY, INC. ANNOUNCES THIRD QUARTER 2023 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES THIRD QUARTER 2023 FINANCIAL AND OPERATING RESULTS Midland, TX (November 6, 2023) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the third quarter ended September 30, 2023. THIRD QUARTER 2023 HIGHLIGHTS •Average production of 266.1 MBO/d (452.8 MBOE/d) •Net cash provided

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (November 6, 2023) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statement

Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 10, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Specif

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 31, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numbe

DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2023 FINANCIAL AND OPERATING RESULTS; INCREASES BASE DIVIDEND

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2023 FINANCIAL AND OPERATING RESULTS; INCREASES BASE DIVIDEND Midland, TX (July 31, 2023) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the second quarter ended June 30, 2023. SECOND QUARTER 2023 HIGHLIGHTS •Average production of 263.1 MBO/d (449.9 MBOE/d)

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (July 31, 2023) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. Please see the information regarding forward-looking statements a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 11, 2023 DIAMONDBACK ENERGY,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): July 11, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numbe

Fourth Amended and Restated Bylaws of the Company, adopted as of June 8, 2023 (incorporated by reference to Exhibit 3.2 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on June 14, 2023).

Exhibit 3.2 FOURTH AMENDED AND RESTATED BYLAWS OF DIAMONDBACK ENERGY, INC. A DELAWARE CORPORATION (THE “CORPORATION”) ADOPTED AS OF JUNE 8, 2023 FOURTH AMENDED AND RESTATED BYLAWS OF DIAMONDBACK ENERGY, INC. ARTICLE I OFFICES Section 1.1 Registered Office. The registered office of the Corporation within the State of Delaware shall be located at either (a) the principal place of business of the Cor

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders, Financial Statements and Exhibits, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): June 8, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Number

Second Amended and Restated Certificate of Incorporation of the Company (incorporated by reference to Exhibit 3.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on June 14, 2023).

Exhibit 3.1 SECOND AMENDED AND RESTATED CERTIFICATE OF INCORPORATION OF DIAMONDBACK ENERGY, INC. Diamondback Energy, Inc., a corporation organized and existing under the laws of the State of Delaware, hereby certifies as follows: 1. The name of the corporation is Diamondback Energy, Inc. The date of filing of its original Certificate of Incorporation with the Secretary of the State of Delaware was

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 ☐ TRANSITION REPORT PURSUANT TO

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Speci

LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC.

Exhibit 99.2 LETTER TO STOCKHOLDERS ISSUED BY DIAMONDBACK ENERGY, INC. Midland, TX (May 1, 2023) Diamondback Stockholders, This letter is meant to be a supplement to our earnings release and is being furnished to the Securities and Exchange Commission (SEC) and released to our stockholders simultaneously with our earnings release. The intent of this new form of communication is to increase transpa

DIAMONDBACK ENERGY, INC. ANNOUNCES FIRST QUARTER 2023 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES FIRST QUARTER 2023 FINANCIAL AND OPERATING RESULTS Midland, TX (May 1, 2023) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the first quarter ended March 31, 2023. FIRST QUARTER 2023 HIGHLIGHTS •Average production of 251.4 MBO/d (425.0 MBOE/d) •Net cash provided by operat

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): May 1, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Number)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Proxy Statement Definitiv

Notice of Annual Meeting of Stockholders PROPOSAL 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Proxy Statement Definitiv

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 20, 2023 DIAMONDBACK ENERGY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): April 20, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

Notice of Annual Meeting of Stockholders PROPOSAL 1

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by Registrant Filed by a Party other than the Registrant Check the appropriate box: Preliminary Proxy Statement Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) Definitive Proxy Statement Definitiv

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 28, 2023 DIAMONDBACK ENERGY

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): March 28, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

DIAMONDBACK ENERGY, INC. ANNOUNCES RETIREMEMT OF BOARD MEMBER

EX-99.1 Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES RETIREMEMT OF BOARD MEMBER Midland, Texas, March 30, 2023 (GLOBE NEWSWIRE) – On March 28, 2023, Michael P. Cross, who has been a member of the Board of Directors (the “Board”) of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) for over a decade since the Company’s initial public offering and who currently also serves

US9233721060 / VERDE CLEAN FUELS INC / Diamondback Energy, Inc. Activist Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13D (Rule 13d-101) Under the Securities Exchange Act of 1934 (Amendment No.

2023 Form of Time Vesting Restricted Stock Unit Award Agreement.

Exhibit 10.8 Restricted Stock Unit Award (#) O-RSU23- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) time-based Restricted Stock Units under the Company’s 2021 Amended and Restated Equity Incentive Plan (the “Pla

of the proved reserves, future production and income attributable to certain royalty interests of Viper Energy Partners LP, a subsidiary of Diamondback Energy, Inc., as of December 31, 202

Exhibit 99.2 VIPER ENERGY PARTNERS, LP Estimated Future Reserves and Income Attributable to Certain Royalty Interests SEC Parameters As of December 31, 2022 /s/ Marsha E. Wellmann /s/ Raza Rizvi Marsha E. Wellmann, P.E. Raza Rizvi TBPELS License No. 116149 Senior Petroleum Engineer Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT COMPANY PETROL

2022 Form of Performance-Vesting Restricted Stock Unit Agreement.

Exhibit 10.7 Restricted Stock Unit Award (#) O-PSU22- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) performance-based Restricted Stock Units (this “Performance Award”) under the Company’s 2021 Amended and Restat

2023 Form of Performance-Vesting Restricted Stock Unit Agreement.

Exhibit 10.9 Restricted Stock Unit Award (#) O-PSU23- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) performance-based Restricted Stock Units (this “Performance Award”) under the Company’s 2021 Amended and Restat

2022 Form of Time Vesting Restricted Stock Unit Award Agreement.

Exhibit 10.6 Restricted Stock Unit Award (#) O-RSU22- DIAMONDBACK ENERGY, INC. 2021 AMENDED AND RESTATED EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD CERTIFICATE THIS IS TO CERTIFY that Diamondback Energy, Inc., a Delaware corporation (the “Company”), has granted you (“Participant”) time-based Restricted Stock Units under the Company’s 2021 Amended and Restated Equity Incentive Plan (the “Pla

of the proved reserves, future production and income attributable to certain leasehold interests of Diamondback Energy, Inc. as of December 31, 202

Exhibit 99.1 DIAMONDBACK ENERGY, INC. Estimated Future Reserves and Income Attributable to Certain Leasehold and Royalty Interests SEC Parameters As of December 31, 2022 /s/ Marsha E. Wellmann /s/ Raza Rizvi Marsha E. Wellmann, P.E. Raza Rizvi TBPELS License No. 116149 Senior Petroleum Engineer Senior Vice President [SEAL] RYDER SCOTT COMPANY, L.P. TBPELS Firm Registration No. F-1580 RYDER SCOTT C

Subsidiaries of the Registrant.

Exhibit 21.1 Diamondback Energy, Inc. Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Diamondback E&P LLC Delaware QEP Energy Company Delaware QEP Resources, Inc. Delaware Viper Energy Partners LLC Delaware

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Specified in Its Chart

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 21, 2023 DIAMONDBACK ENE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): February 21, 2023 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File N

DIAMONDBACK ENERGY, INC. ANNOUNCES FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL AND OPERATING RESULTS; INCREASES BASE DIVIDEND

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES FOURTH QUARTER AND FULL YEAR 2022 FINANCIAL AND OPERATING RESULTS; INCREASES BASE DIVIDEND Midland, TX (February 21, 2023) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the fourth quarter and full year ended December 31, 2022. FOURTH QUARTER 2022 HIGHLIGHTS •Average prod

FANG / Diamondback Energy Inc / Guidon Energy Holdings LP - SC 13G/A Passive Investment

SC 13G/A 1 d375935dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Diamondback Energy, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 25278X109 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of This Statement) Check the appropriate box to d

FANG / Diamondback Energy Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SC 13G/A 1 tv0731-diamondbackenergyinc.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 9)* Name of issuer: Diamondback Energy Inc. Title of Class of Securities: Common Stock CUSIP Number: 25278X109 Date of Event Which Requires Filing of this Statement: December 30, 2022 Check the appropriate box to

As filed with the Securities and Exchange Commission on January 31, 2023

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on January 31, 2023 Registration No.

Calculation of Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Diamondback Energy, Inc.

Subsidiaries of Diamondback Energy, Inc.

Exhibit 21.1 Significant Subsidiaries of the Registrant 1. Diamondback E&P LLC, a Delaware limited liability company 2. Viper Energy Partners LLC, a Delaware limited liability company 3. QEP Resources, Inc., a Delaware corporation 4. QEP Energy Company, a Delaware corporation

First Supplemental Indenture, dated as of December 13, 2022, among Diamondback Energy, Inc., Diamondback E&P LLC and Computershare Trust Company, National Association, as trustee (including the form of 6.250% Senior Notes due 2053) (incorporated by reference to Exhibit 4.2 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on December 13, 2022).

Exhibit 4.2 DIAMONDBACK ENERGY, INC., as the Company DIAMONDBACK E&P LLC, as the Subsidiary Guarantor and COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION, as the Trustee 6.250% Senior Notes due 2053 FIRST SUPPLEMENTAL INDENTURE Dated as of December 13, 2022 to the INDENTURE Dated as of December 13, 2022 TABLE OF CONTENTS Page Article I SCOPE OF SUPPLEMENTAL INDENTURE; GENERAL; THE NOTES 2 SECTIO

Indenture, dated as of December 13, 2022, between Diamondback Energy, Inc. and Computershare Trust Company, National Association, as trustee (incorporated by reference to Exhibit 4.1 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on December 13, 2022).

Exhibit 4.1 DIAMONDBACK ENERGY, INC. and ANY GUARANTORS PARTY HERETO to COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION Trustee INDENTURE Dated as of December 13, 2022 DEBT SECURITIES DIAMONDBACK ENERGY, INC. Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939 Trust Indenture Act Section Indenture Section Section 310(a)(1) 609 (a

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 13, 2022 DIAMONDBACK ENE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): December 13, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File N

Underwriting Agreement, dated November 29, 2022, among Diamondback Energy, Inc., Diamondback E&P LLC and

Exhibit 1.1 Execution Version DIAMONDBACK ENERGY, INC. $650,000,000 6.250% Senior Notes due 2053 UNDERWRITING AGREEMENT November 29, 2022 TD Securities (USA) LLC Citigroup Global Markets Inc. Truist Securities, Inc. As Representatives of the several Underwriters named in Schedule A c/o TD Securities (USA) LLC 1 Vanderbilt Avenue, 11th Floor New York, New York 10017 c/o Citigroup Global Markets Inc

Diamondback Energy Prices Offering of Senior Notes

Exhibit 99.1 Diamondback Energy Prices Offering of Senior Notes November 29, 2022 MIDLAND, Texas, November 29, 2022 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?) announced today that it has priced an offering (the ?Notes Offering?) of $650,000,000 in aggregate principal amount of 6.250% senior notes that will mature on March 15, 2053 (the ?Notes?). The price to the pub

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 29, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File N

P R O S P E C T U S S U P P L E M E N T (to Prospectus dated November 21, 2022) Diamondback Energy, Inc. $650,000,000 6.250% Senior Notes due 2053

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(2)? ?Registration File No. 333-268495? P?R?O?S?P?E?C?T?U?S S?U?P?P?L?E?M?E?N?T (to Prospectus dated November 21, 2022) Diamondback Energy, Inc. $650,000,000 6.250% Senior Notes due 2053 We are offering $650,000,000 aggregate principal amount of our 6.250% Senior Notes due 2053 (the ?notes?). The notes will mature on March 15, 2053. Interest on the n

Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc. Diamondback E&P LLC(1) (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc.

As filed with the Securities and Exchange Commission on November 30, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 30, 2022 Registration No.

Calculation of Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Table Form S-3 (Form Type) Diamondback Energy, Inc.

Subsidiaries of Diamondback Energy, Inc.

Exhibit 21.1 Significant Subsidiaries of the Registrant 1. Diamondback E&P LLC, a Delaware limited liability company 2. Viper Energy Partners LLC, a Delaware limited liability company 3. QEP Resources, Inc., a Delaware corporation 4. QEP Energy Company, a Delaware corporation

PRICING TERM SHEET $650,000,000 6.250% Senior Notes due 2053

Filed Pursuant to Rule 433 Registration No. 333-268495 November 29, 2022 PRICING TERM SHEET $650,000,000 6.250% Senior Notes due 2053 The information in this pricing term sheet supplements the registration statement and the preliminary prospectus supplement and supersedes the information in the registration statement and the preliminary prospectus supplement to the extent inconsistent with the inf

SUBJECT TO COMPLETION, DATED NOVEMBER 29, 2022 P R E L I M I N A R Y P R O S P E C T U S S U P P L E M E N T (to Prospectus dated November 21, 2022) Diamondback Energy, Inc. $    % Senior Notes due 2053

TABLE OF CONTENTS This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed.

Form of Indenture between Diamondback Energy, Inc., any guarantors party thereto and Computershare Trust Company, National Association, as trustee (including form of Debt Security).

Exhibit 4.18 DIAMONDBACK ENERGY, INC. and ANY GUARANTORS PARTY HERETO to COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION Trustee INDENTURE Dated as of [], 202 DEBT SECURITIES DIAMONDBACK ENERGY, INC. Certain Sections of this Indenture relating to Sections 310 through 318, inclusive, of the Trust Indenture Act of 1939 Trust Indenture Act Section Indenture Section Section 310(a)(1) 609 (a)(2) 609

As filed with the Securities and Exchange Commission on November 21, 2022

TABLE OF CONTENTS As filed with the Securities and Exchange Commission on November 21, 2022 Registration No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 16, 2022 DIAMONDBACK ENE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 16, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File N

Calculation of Filing Fee Table.

Exhibit 107 Calculation of Filing Fee Tables Form S-3 (Form Type) Diamondback Energy, Inc.

Form T-1 Statement of Eligibility of Trustee.

EX-25.1 7 tm2230948d2ex25-1.htm EXHIBIT 25.1 Exhibit 25.1 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE x CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE PURSUANT TO SECTION 305(b)(2) Computershare Trust Company, National Association (Exact n

Diamondback Energy, Inc. Announces Northern Midland Basin Acquisition

EX-99.1 2 diamondbackex991-11x21x22.htm EX-99.1 Diamondback Energy, Inc. Announces Northern Midland Basin Acquisition November 16, 2022 MIDLAND, Texas, Nov. 16, 2022 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or “the Company”) today announced that it has entered into a definitive purchase agreement to acquire all leasehold interest and related assets of Lario Permian

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As S

DIAMONDBACK ENERGY, INC. ANNOUNCES THIRD QUARTER 2022 FINANCIAL AND OPERATING RESULTS

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES THIRD QUARTER 2022 FINANCIAL AND OPERATING RESULTS Midland, TX (November 7, 2022) - Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or the “Company”) today announced financial and operating results for the third quarter ended September 30, 2022. THIRD QUARTER 2022 HIGHLIGHTS •Average production of 224.3 MBO/d (390.6 MBOE/d) •Cash flow from ope

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 7, 2022 DIAMONDBACK ENER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): November 7, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

Sixth Supplemental Indenture, dated as of October 28, 2022, among Diamondback Energy, Inc., Diamondback E&P LLC and Computershare Trust Company, National Association (including the form of 6.250% Senior Notes due 2033) (incorporated by reference to Exhibit 4.2 to the Form 8-K, File No. 001-35700, filed by the Company with the SEC on October 28, 2022).

Exhibit 4.2 DIAMONDBACK ENERGY, INC., as the Company DIAMONDBACK E&P LLC, as the Subsidiary Guarantor and COMPUTERSHARE TRUST COMPANY, NATIONAL ASSOCIATION, as the Trustee 6.250% Senior Notes due 2033 SIXTH SUPPLEMENTAL INDENTURE Dated as of October 28, 2022 to the INDENTURE Dated as of December 5, 2019 TABLE OF CONTENTS Page Article I SCOPE OF SUPPLEMENTAL INDENTURE; GENERAL; THE NOTES 2 SECTION

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 28, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

Diamondback Energy Prices Offering of Senior Notes

Exhibit 99.1 Diamondback Energy Prices Offering of Senior Notes October 17, 2022 MIDLAND, Texas, October 17, 2022 (GLOBE NEWSWIRE) - Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?) announced today that it has priced an offering (the ?Notes Offering?) of $1,100,000,000 in aggregate principal amount of 6.250% senior notes that will mature on March 15, 2033 (the ?Notes?). The price to the pub

Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 17, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

Underwriting Agreement, dated October 17, 2022, among Diamondback Energy, Inc., Diamondback E&P LLC and BofA Securities, Inc., Barclays Capital Inc. and Scotia Capital (USA) Inc., as representatives of the several underwriters named therein.

Exhibit 1.1 Execution Version DIAMONDBACK ENERGY, INC. $1,100,000,000 6.250% Senior Notes due 2033 UNDERWRITING AGREEMENT October 17, 2022 BofA Securities, Inc. Barclays Capital Inc. Scotia Capital (USA) Inc. As Representatives of the several Underwriters named in Schedule A c/o BofA Securities, Inc. One Bryant Park New York, New York 10036 c/o Barclays Capital Inc. 745 Seventh Avenue New York, Ne

Diamondback Energy, Inc. $1,100,000,000 6.250% Senior Notes due 2033

TABLE OF CONTENTS ?Filed Pursuant to Rule 424(b)(2)? ?Registration File No. 333-234764? P R O S P E C T U S??S U P P L E M E N T (to Prospectus dated November 18, 2019) Diamondback Energy, Inc. $1,100,000,000 6.250% Senior Notes due 2033 We are offering $1,100,000,000 aggregate principal amount of our 6.250% Senior Notes due 2033 (the ?notes.?) The notes will mature on March 15, 2033. Interest on

Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc. Diamondback E&P LLC(1) (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities

Exhibit 107 Calculation of Filing Fee Tables Form 424(b)(2) (Form Type) Diamondback Energy, Inc.

PRICING TERM SHEET $1,100,000,000 6.250% Senior Notes due 2033

Filed Pursuant to Rule 433 Registration No. 333-234764 October 17, 2022 PRICING TERM SHEET $1,100,000,000 6.250% Senior Notes due 2033 The information in this pricing term sheet supplements the registration statement and the preliminary prospectus supplement and supersedes the information in the registration statement and the preliminary prospectus supplement to the extent inconsistent with the in

SUBJECT TO COMPLETION, DATED OCTOBER 17, 2022

TABLE OF CONTENTS This preliminary prospectus supplement relates to an effective registration statement under the Securities Act of 1933, as amended, but the information in this preliminary prospectus supplement is not complete and may be changed.

Diamondback Energy, Inc. Announces Midland Basin Acquisition

Exhibit 99.1 Diamondback Energy, Inc. Announces Midland Basin Acquisition Midland, TX (October 11, 2022) – Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback” or “the Company”) today announced that it has entered into a definitive purchase agreement to acquire all leasehold interest and related assets of FireBird Energy LLC (“FireBird”) in exchange for 5.86 million shares of Diamondback common

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 11, 2022 DIAMONDBACK ENER

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): October 11, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Nu

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): September 28, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File

Third Amended and Restated Bylaws of Diamondback Energy, Inc. (incorporated by reference to Exhibit 3.1 to the Form 8-K, File No. 001-35700, filed by Diamondback Energy, Inc. with the SEC on October 3, 2022).

Exhibit 3.1 THIRD AMENDED AND RESTATED BYLAWS OF DIAMONDBACK ENERGY, INC. A DELAWARE CORPORATION (THE ?CORPORATION?) ADOPTED AS OF SEPTEMBER 28, 2022 THIRD AMENDED AND RESTATED BYLAWS OF DIAMONDBACK ENERGY, INC. ARTICLE I OFFICES Section 1.1 Registered Office. The registered office of the Corporation within the State of Delaware shall be located at either (a) the principal place of business of the

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 ☐ TRANSITION REPORT PURSUANT TO S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-35700 Diamondback Energy, Inc. (Exact Name of Registrant As Specif

Filed by Diamondback Energy, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Rattler Midstream LP Commission File N

Filed by Diamondback Energy, Inc. Pursuant to Rule 425 under the Securities Act of 1933, as amended and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934, as amended Subject Company: Rattler Midstream LP Commission File No.: 001-38919 Date: August 1, 2022 DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2022 FINANCIAL AND OPERATING RESULTS; INCREASES SHARE REPURCHASE

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (Date of earliest event reported): August 1, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of Registrant as Specified in Charter) DE 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File Numb

DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2022 FINANCIAL AND OPERATING RESULTS; INCREASES SHARE REPURCHASE AUTHORIZATION TO $4 BILLION

Exhibit 99.1 DIAMONDBACK ENERGY, INC. ANNOUNCES SECOND QUARTER 2022 FINANCIAL AND OPERATING RESULTS; INCREASES SHARE REPURCHASE AUTHORIZATION TO $4 BILLION Midland, TX (August 1, 2022) - Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback? or the ?Company?) today announced financial and operating results for the second quarter ended June 30, 2022. SECOND QUARTER 2022 HIGHLIGHTS ?Average producti

500 West Texas Avenue Suite 1200 Midland, Texas 79701 INFORMATION STATEMENT NOTICE OF ACTION BY WRITTEN CONSENT MERGER – WE ARE NOT ASKING YOU FOR A PROXY AND YOU ARE REQUESTED NOT TO SEND US A PROXY

424B3 1 d352901d424b3.htm 424B3 Table of Contents Filed Pursuant to Rule 424(b)(3) Registration No. 333-265558 On May 15, 2022, Diamondback Energy, Inc. (“Diamondback”) entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Rattler Midstream LP (“Rattler”), Rattler Midstream GP LLC, the general partner of Rattler (the “General Partner”), and Bacchus Merger Sub Company, a wholly

Diamondback Energy, Inc. July 26, 2022

Diamondback Energy, Inc. July 26, 2022 VIA EDGAR United States Securities and Exchange Commission The Division of Corporation Finance Office of Energy & Transportation 100 F Street, N.E. Washington, D.C. 20549-3561 Attn: Michael Purcell Karina Dorin Re: Diamondback Energy, Inc. (the ?Registrant?) Registration Statement on Form S-4, as amended File No. 333-265558 Ladies and Gentlemen: Reference is

Consent of Evercore Group L.L.C.

Exhibit 99.1 CONSENT OF EVERCORE GROUP L.L.C. July 21, 2022 Conflicts Committee of the Board of Directors of Rattler Midstream GP LLC, the general partner of Rattler Midstream LP 500 West Texas Avenue, Suite 1200 Midland, Texas 79701 Members of the Conflicts Committee: We hereby consent to (i) the inclusion of our opinion letter, dated May 15, 2022, to the Conflicts Committee of the Board of Direc

As filed with the Securities and Exchange Commission on July 21, 2022

Table of Contents As filed with the Securities and Exchange Commission on July 21, 2022 Registration No.