RTLR / Rattler Midstream Lp - Unit - Документы SEC, Годовой отчет, Доверенное заявление

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EX-99.A 2 d399628dex99a.htm EX-99.A EXHIBIT A AGREEMENT TO FILE JOINT ACQUISITION STATEMENTS AGREEMENT made this 2nd day of FEBRUARY, 2021 by and between Delaware Funds® by Macquarie listed on Annex A hereto, Macquarie Investment Management Business Trust, Macquarie Management Holdings, Inc, and the Macquarie Parties listed on Annex B hereto (collectively referred to as the “parties”). WHEREAS, th

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EX-99.B 3 d399628dex99b.htm EX-99.B Exhibit 99.B EXHIBIT B Powers of Attorney for Macquarie Group Limited and Macquarie Bank Limited incorporated by reference to 13G filings made by Macquarie Group Limited and Macquarie Bank Limited on May 25, 2021. Page 13 of 13

RTLR / Rattler Midstream LP Common Units / CARDINAL CAPITAL MANAGEMENT LLC /CT Passive Investment

SC 13G/A 1 d920517013g-a.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Rattler Midstream LP (Name of Issuer) Common Units (Title of Class of Securities) 75419T103 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rul

RTLR / Rattler Midstream LP Common Units / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

SC 13G/A 1 d399628dsc13ga.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. 1)* Rattler Midstream LP (Name of Issuer) Common Shares (Title of Class of Securities) 75419T103 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to desi

RTLR / Rattler Midstream LP Common Units / Capital World Investors - 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. 2 )* Rattler Midstream LP (Name of Issuer) Common Stock (Title of Class of Securities) 75419T103 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box t

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-38919 RATTLER MIDSTREAM LP (Exact name of registrant as specified in its

As filed with the Securities and Exchange Commission on August 24, 2022

As filed with the Securities and Exchange Commission on August 24, 2022 Registration No.

Diamondback Energy, Inc. and Rattler Midstream LP Announce Completion of Merger

Exhibit 99.1 Diamondback Energy, Inc. and Rattler Midstream LP Announce Completion of Merger MIDLAND, Texas, Aug. 24, 2022 (GLOBE NEWSWIRE) ? Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?) and Rattler Midstream LP (NASDAQ: RTLR) (?Rattler?) today announced the completion of the previously announced merger between Rattler and Diamondback. The merger resulted in Diamondback acquiring all of

Regulation FD Disclosure, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Termination of a Material Definitive Agreement, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

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 24, 2022 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (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): August 3, 2022 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number)

Fourth Amendment to the Credit Agreement, dated as of June 8, 2022, among Rattler Midstream Operating LLC, as borrower, Rattler Midstream LP, as parent, each of the undersigned guarantors together with the parent as guarantors, Wells Fargo, National Association, as administrative agent, and the lenders from time to time party thereto.

Exhibit 10.1 FOURTH AMENDMENT TO CREDIT AGREEMENT This FOURTH AMENDMENT TO CREDIT AGREEMENT (this ?Amendment?), dated as of June 8, 2022, is among: Rattler Midstream LP, a Delaware limited partnership (the ?Parent?); Rattler Midstream Operating LLC, a Delaware limited liability company (the ?Borrower?); each of the undersigned guarantors (together with the Parent, the ?Guarantors?); each of the Le

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 001-38919 Rattler Midstream LP (Exact Name of Registrant As Specified

Rattler Midstream LP Consolidated Balance Sheets (unaudited, in thousands) June 30, December 31, 2022 2021 Assets Current assets: Cash $ 17,784 $ 19,897 Accounts receivable—related-party 54,620 58,154 Accounts receivable—third-party, net 7,971 9,415

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS SECOND QUARTER 2022 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, August 3, 2022 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating results for the second quarter end

RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS SECOND QUARTER 2022 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, August 3, 2022 (GLOBE NEWSWIRE) -- Rattler Midstream LP (NASDAQ: RTLR) (“Rattler” or the “Company”), a subsidi

RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS SECOND QUARTER 2022 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, August 3, 2022 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating results for the second quarter ended June 30, 2

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

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14C INFORMATION Information Statement Pursuant to Section 14(c) of the Securities Exchange Act of 1934 Check the appropriate box: ? Preliminary Information Statement ? Confidential, for use of the Commission only (as permitted by Rule 14c-5(d)(2)) ? Definitive Information Statement Rattler Midstream

Filed by Rattler Midstream LP 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.:

Filed by Rattler Midstream LP 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.

RTLR / Rattler Midstream LP Common Units / KAYNE ANDERSON CAPITAL ADVISORS LP - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.2) Rattler Midstream LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 75419T103 (CUSIP Number) Check the following box if a fee is being paid with this statement [ ]. (A fee is not required only if the filing person: (1) has a previous statemen

Diamondback Energy, Inc. Announces Agreement to Acquire Publicly Held Units of Rattler Midstream LP

Exhibit 99.1 Diamondback Energy, Inc. Announces Agreement to Acquire Publicly Held Units of Rattler Midstream LP MIDLAND, Texas, May 16, 2022 (GLOBE NEWSWIRE) ? Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?) and Rattler Midstream LP (NASDAQ: RTLR) (?Rattler?) today announced that, on May 15, 2022, they entered into a definitive agreement for Diamondback to acquire all of the publicly held

Entry into a Material Definitive Agreement, 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 Date of report (Date of earliest event reported): May 16, 2022 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number) (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 Date of report (Date of earliest event reported): May 16, 2022 RATTLER MIDSTREAM LP

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 16, 2022 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number) (I

Diamondback Energy, Inc. Announces Agreement to Acquire Publicly Held Units of Rattler Midstream LP

Exhibit 99.1 Diamondback Energy, Inc. Announces Agreement to Acquire Publicly Held Units of Rattler Midstream LP MIDLAND, Texas, May 16, 2022 (GLOBE NEWSWIRE) ? Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?) and Rattler Midstream LP (NASDAQ: RTLR) (?Rattler?) today announced that, on May 15, 2022, they entered into a definitive agreement for Diamondback to acquire all of the publicly held

Agreement and Plan of Merger, dated as of May 15, 2022, by and among Diamondback Energy, Inc., Rattler Midstream GP LLC, Bacchus Merger Sub Company and Rattler Midstream LP

Exhibit 2.1 Execution Version AGREEMENT AND PLAN OF MERGER by and among DIAMONDBACK ENERGY, INC., RATTLER MIDSTREAM GP LLC, BACCHUS MERGER SUB COMPANY and RATTLER MIDSTREAM LP MAY 15, 2022 TABLE OF CONTENTS Page Article I DEFINED TERMS; CONSTRUCTION 2 Section 1.1 Definitions 2 Section 1.2 Interpretation 12 Article II THE MERGER 14 Section 2.1 The Merger and Surviving Entity 14 Section 2.2 Closing

Agreement and Plan of Merger, dated as of May 15, 2022, by and among Diamondback Energy, Inc., Rattler Midstream GP LLC, Bacchus Merger Sub Company and Rattler Midstream LP (incorporated by reference to Exhibit 2.1 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 16, 2022

Exhibit 2.1 Execution Version AGREEMENT AND PLAN OF MERGER by and among DIAMONDBACK ENERGY, INC., RATTLER MIDSTREAM GP LLC, BACCHUS MERGER SUB COMPANY and RATTLER MIDSTREAM LP MAY 15, 2022 TABLE OF CONTENTS Page Article I DEFINED TERMS; CONSTRUCTION 2 Section 1.1 Definitions 2 Section 1.2 Interpretation 12 Article II THE MERGER 14 Section 2.1 The Merger and Surviving Entity 14 Section 2.2 Closing

Diamondback Energy, Inc. Announces Agreement to Acquire Publicly Held Units of Rattler Midstream LP

Exhibit 99.1 Diamondback Energy, Inc. Announces Agreement to Acquire Publicly Held Units of Rattler Midstream LP MIDLAND, Texas, May 16, 2022 (GLOBE NEWSWIRE) ? Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?) and Rattler Midstream LP (NASDAQ: RTLR) (?Rattler?) today announced that, on May 15, 2022, they entered into a definitive agreement for Diamondback to acquire all of the publicly held

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 16, 2022 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): May 16, 2022 DIAMONDBACK ENERGY, INC. (Exact Name of registrant as specified in charter) Delaware 001-35700 45-4502447 (State or other jurisdiction of incorporation) (Commission File

Agreement and Plan of Merger, dated as of May 15, 2022, by and among Diamondback Energy, Inc., Rattler Midstream GP LLC, Bacchus Merger Sub Company and Rattler Midstream LP

Exhibit 2.1 Execution Version AGREEMENT AND PLAN OF MERGER by and among DIAMONDBACK ENERGY, INC., RATTLER MIDSTREAM GP LLC, BACCHUS MERGER SUB COMPANY and RATTLER MIDSTREAM LP MAY 15, 2022 TABLE OF CONTENTS Page Article I DEFINED TERMS; CONSTRUCTION 2 Section 1.1 Definitions 2 Section 1.2 Interpretation 12 Article II THE MERGER 14 Section 2.1 The Merger and Surviving Entity 14 Section 2.2 Closing

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, 2022 ☐ 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, 2022 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Registrant As Specified

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 3, 2022 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number) (I.

$80 - $100

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS FIRST QUARTER 2022 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, May 3, 2022 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating results for the first quarter ended Ma

List of Subsidiaries of the Registrant

Exhibit 21.1 Rattler Midstream LP Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Rattler Holdings LLC Delaware Rattler Midstream Operating LLC Delaware Rattler Ajax Processing LLC Delaware Rattler OMOG LLC Delaware Tall City Towers 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, 2021 OR ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Registrant As Specified in Its Charter)

Supplemental Indenture, dated as of December 22, 2021, among Rattler Holdings LLC, as guaranteeing subsidiary, Rattler Midstream LP, as issuer, Rattler Midstream Operating LLC, Tall City Towers LLC, Rattler OMOG LLC and Rattler Ajax Processing LLC, as the other guarantors, and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.5 of the Registrant's Current Report on Form 10-K (File No. 333-226645) filed on February 24, 2022).

EXHIBIT 4.5 SUPPLEMENTAL INDENTURE SUPPLEMENTAL INDENTURE (this ?Supplemental Indenture?), dated as of December 22, 2021, among Rattler Holdings LLC, a Delaware limited liability company (the ?Guaranteeing Subsidiary?), a subsidiary of Rattler Midstream LP (or its permitted successor), a Delaware limited partnership (the ?Company?), the Company, the other Guarantors (as defined in the Indenture re

Supplemental Indenture, dated as of December 8, 2021, among Rattler WTG LLC, as guaranteeing subsidiary, Rattler Midstream LP, as issuer, Rattler Midstream Operating LLC, Tall City Towers LLC, Rattler OMOG LLC and Rattler Ajax Processing LLC, as the other guarantors, and Wells Fargo Bank, National Association, as trustee (incorporated by reference to Exhibit 4.4 of the Registrant's Current Report on Form 10-K (File No. 333-226645) filed on February 24, 2022).

EXHIBIT 4.4 SUPPLEMENTAL INDENTURE SUPPLEMENTAL INDENTURE (this ?Supplemental Indenture?), dated as of December 8, 2021, among Rattler WTG LLC, a Delaware limited liability company (the ?Guaranteeing Subsidiary?), a subsidiary of Rattler Midstream LP (or its permitted successor), a Delaware limited partnership (the ?Company?), the Company, the other Guarantors (as defined in the Indenture referred

$80 - $100

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS FOURTH QUARTER 2021 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, February 23, 2022 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating results for the fourth quarter

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 23, 2022 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Numbe

RTLR / Rattler Midstream LP Common Units / CARDINAL CAPITAL MANAGEMENT LLC /CT Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

RTLR / Rattler Midstream LP Common Units / MACQUARIE GROUP LTD - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 0)* Rattler Midstream LP (Name of Issuer) Common Shares (Title of Class of Securities) 75419T103 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this S

RTLR / Rattler Midstream LP Common Units / Zimmer Partners, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) (Amendment No.

RTLR / Rattler Midstream LP Common Units / Clearbridge Investments, LLC Passive Investment

SC 13G/A 1 ratt21a2.htm CUSIP NO. 75419T103 13G Page 1 of 7 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Rattler Midstream LP (Name of Issuer) Common Units (Title of Class of Securities) 75419T103 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the app

RTLR / Rattler Midstream LP Common Units / KAYNE ANDERSON CAPITAL ADVISORS LP - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.1) Rattler Midstream LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 75419T103 (CUSIP Number) Check the following box if a fee is being paid with this statement [ ]. (A fee is not required only if the filing person: (1) has a previous statemen

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): December 21, 2021 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Numbe

Amended and Restated Services and Secondment Agreement, dated as of December 22, 2021, by and among Diamondback Energy, Inc., Diamondback E&P LLC, Rattler Midstream GP LLC, Rattler Midstream LP, Rattler Holdings LLC and Rattler Midstream Operating LLC.

EXHIBIT 10.2 AMENDED AND RESTATED SERVICES AND SECONDMENT AGREEMENT AMONG DIAMONDBACK ENERGY, INC. DIAMONDBACK E&P LLC RATTLER MIDSTREAM GP LLC RATTLER MIDSTREAM LP RATTLER HOLDINGS LLC AND RATTLER MIDSTREAM OPERATING LLC AMENDED AND RESTATED SERVICES AND SECONDMENT AGREEMENT This Amended and Restated Services and Secondment Agreement (this ?Agreement?), dated as of December 22, 2021, is entered i

Third Amendment to Credit Agreement, dated as of December 21, 2021, among Rattler Midstream Operating LLC, as borrower, Rattler Midstream LP, as parent, Wells Fargo Bank, National Association, as administrative agent, and the lenders from time to time party thereto.

EXHIBIT 10.1 THIRD AMENDMENT TO CREDIT AGREEMENT This THIRD AMENDMENT TO CREDIT AGREEMENT (this ?Amendment?), dated as of December 21, 2021, is among: Rattler Midstream LP, a Delaware limited partnership (the ?Parent?); Rattler Midstream Operating LLC, a Delaware limited liability company (the ?Borrower?); each of the undersigned guarantors (together with the Parent, the ?Guarantors?); each of the

Third Amended and Restated Limited Liability Company Agreement of Rattler Midstream Operating LLC (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on December 27, 2021).

EXHIBIT 3.1 THIRD AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT OF RATTLER MIDSTREAM OPERATING LLC TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 2 Section 1.1 Definitions 2 Section 1.2 Construction 11 ARTICLE II ORGANIZATION 11 Section 2.1 Formation 11 Section 2.2 Name 11 Section 2.3 Registered Office; Registered Agent; Principal Office; Other Offices 11 Section 2.4 Purpose and Business

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, 2021 ☐ TRANSITION REPORT PURSUANT

Table of Contents 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, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of R

$30 - $40

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS THIRD QUARTER 2021 FINANCIAL AND OPERATING RESULTS AND STRATEGIC TRANSACTIONS MIDLAND, Texas, November 3, 2021 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating result

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 3, 2021 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number

Regulation FD Disclosure, 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 Date of report (Date of earliest event reported): October 19, 2021 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number

Purchase and Sale Agreement, dated October 19, 2021, by and among Diamondback E&P LLC, QEP Energy Company and Guidon Anchor LLC, as seller, and Rattler Midstream Operating LLC, as purchaser (incorporated by reference to Exhibit 2.1 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on October 21, 2021).

Exhibit 2.1 Execution Version PURCHASE AND SALE AGREEMENT DATED OCTOBER 19, 2021, BY AND AMONG DIAMONDBACK E&P LLC, QEP ENERGY COMPANY AND GUIDON ANCHOR LLC AS SELLER, AND RATTLER MIDSTREAM OPERATING LLC AS PURCHASER TABLE OF CONTENTS Page ARTICLE I DEFINITIONS AND RULES OF CONSTRUCTION 1 Section 1.1 Definitions 1 Section 1.2 Rules of Construction 12 ARTICLE II SALE AND TRANSFER OF ASSETS; CLOSING

Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Announces Drop Down Transaction

Exhibit 99.1 Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Announces Drop Down Transaction Midland, TX (October 21, 2021) ? Rattler Midstream LP (NASDAQ: RTLR) (?Rattler?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced that Rattler Midstream Operating LLC entered into a definitive purchase agreement to acquire certain water midstream ass

Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Announces Strategic Midland Basin Gas Gathering & Processing Joint Venture

Exhibit 99.1 Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Announces Strategic Midland Basin Gas Gathering & Processing Joint Venture MIDLAND, Texas, Oct. 12, 2021 (GLOBE NEWSWIRE) - On October 5, 2021 Rattler Midstream LP (NASDAQ: RTLR) (?Rattler?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), and a private affiliate of an investment fund, completed a

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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 5, 2021 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number)

RTLR / Rattler Midstream LP Common Units / KAYNE ANDERSON CAPITAL ADVISORS LP - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 Rattler Midstream LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 75419T103 (CUSIP Number) Check the following box if a fee is being paid with this statement [ ]. (A fee is not required only if the filing person: (1) has a previous statement on file reporti

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, 2021 ☐ TRANSITION REPORT PURSUANT TO S

Table of Contents 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, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Regist

$30 - $50

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS SECOND QUARTER 2021 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, August 4, 2021 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating results for the second quarter end

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 4, 2021 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.2) Rattler Midstream LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) (CUSIP Number)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.2) Rattler Midstream LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 75419T103 (CUSIP Number) Check the following box if a fee is being paid with this statement [ ]. (A fee is not required only if the filing person: (1) has a previous statemen

Quarterly Report - 10-Q

Table of Contents 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, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Regis

$60 - $80

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS FIRST QUARTER 2021 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, May 4, 2021 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating results for the first quarter ended Ma

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 4, 2021 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number) (I.

2021 Form of Phantom Unit Agreement (incorporated by reference to Exhibit 10.19 of the Registrant’s Annual Report on Form 10-K (File No. 001-38919) filed on February 25, 2021).

Exhibit 10.19 RATTLER MIDSTREAM LP LONG-TERM INCENTIVE PLAN FORM OF PHANTOM UNIT AGREEMENT THIS PHANTOM UNIT AGREEMENT (this ?Agreement?) is made and entered into by and between Rattler Midstream GP LLC, a Delaware limited liability company (the ?General Partner?), and (?you?), effective as of (the ?Date of Grant?). WHEREAS, Rattler Midstream LP, a Delaware limited partnership (the ?Partnership?),

Annual Report - 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, 2020 OR ? TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Registrant As Specified in Its Charter)

$60 - $80

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS FOURTH QUARTER AND FULL YEAR 2020 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, February 24, 2021 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (?Rattler? or the ?Company?), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (?Diamondback?), today announced financial and operating results for the f

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, 2021 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Numbe

Joint Filing Agreement

Exhibit B Joint Filing Agreement In accordance with Rule 13d-1(k) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing on behalf of each of them of a single statement on Schedule 13G (including amendments thereto) with respect to the common units representing limited partner interests of Rattler Midstream LP, a Delaware corporation, and that this Agreement may be included as an exhibit to such joint filing.

Group Members

Exhibit A Group Members HITE Hedge Asset Management LLC James M. Jampel HITE Hedge LP HITE MLP LP HITE Hedge QP LP HITE Energy LP HITE Hedge Offshore Ltd.

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. 1)*

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. 1)* Rattler Midstream LP (Name of Issuer) Common units representing limited partner interests (Title of Class of Securities) 75419T103 (CUSIP Number) December

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Rattler Midstream LP (Name of Issuer) Common Stock (Title of Class of Securities) 75419T103 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which this S

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. TWO )*

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. TWO )* Rattler Midstream Partners, LP (Name of Issuer) Common units representing limited partner interests (Title of Class of Securities) 75419T103 (CUSIP Num

CUSIP NO. 75419T103 13G Page 1 of 7

ratt20a1.htm - Generated by SEC Publisher for SEC Filing CUSIP NO. 75419T103 13G Page 1 of 7 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Rattler Midstream LP (Name of Issuer) Common Units (Title of Class of Securities) 75419T103 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing

January 29, 2021

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 (AMENDMENT NO.1) Rattler Midstream LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 75419T103 (CUSIP Number) Check the following box if a fee is being paid with this statement [ ]. (A fee is not required only if the filing person: (1) has a previous statemen

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) (Amendment No.1) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) (Amendment No.

Quarterly Report - 10-Q

Table of Contents 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, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of R

, 2020, to the Credit Agreement, dated May 18, 2019, as amended on October 23, 2019, by and among Rattler Midstream Operating LLC, as borrower, Rattler Midstream LP, as parent, Wells Fargo Bank, National Association, as the administrative agent, and certain lenders from time to time party thereto.

Exhibit 10.3 SECOND AMENDMENT TO CREDIT AGREEMENT DATED AS OF NOVEMBER 2, 2020 AMONG RATTLER MIDSTREAM LP, AS PARENT, RATTLER MIDSTREAM OPERATING LLC, AS BORROWER, WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT, THE LENDERS PARTY HERETO, AND WELLS FARGO SECURITIES, LLC, CREDIT SUISSE SECURITIES (USA) LLC, JPMORGAN CHASE BANK, N.A., AND MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPO

$125 - $150

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS THIRD QUARTER 2020 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, November 4, 2020 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (“Rattler” or the “Company”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), today announced financial and operating results for the third quarter end

Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

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, 2020 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number

Quarterly Report - 10-Q

Table of Contents 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, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Regist

$125 - $150

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS SECOND QUARTER 2020 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, August 5, 2020 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (“Rattler” or the “Company”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), today announced financial and operating results for the second quarter end

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, 2020 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number)

Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, 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 Date of Report (Date of earliest event reported): July 9, 2020 RATTLER MIDSTREAM LP (Exact name of registrant as specified in its charter) Delaware 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File

Purchase Agreement, dated July 9, 2020, by and among Rattler Midstream LP, Rattler Midstream GP LLC, Rattler Midstream Operating LLC, Tall City Towers LLC, Rattler OMOG LLC, Rattler Ajax Processing LLC and Goldman Sachs & Co. LLC, as representative of the several initial purchasers named therein (incorporated by reference to Exhibit 10.1 of the Registrant's Current Report on Form 8-K (File 001-38919) filed on July 14, 2020).

EX-10.1 Exhibit 10.1 $500,000,000 RATTLER MIDSTREAM LP 5.625% Senior Notes due 2025 PURCHASE AGREEMENT July 9, 2020 Goldman Sachs & Co. LLC As Representative of the several Purchasers named in Schedule A c/o Goldman Sachs & Co. LLC 200 West Street New York, New York 10282-2198 Ladies and Gentlemen: Introductory. Rattler Midstream LP, a Delaware limited partnership (the “Partnership”), agrees with

Indenture, dated as of July 14, 2020, among Rattler Midstream LP, as issuer, Rattler Midstream Operating LLC, Tall City Towers LLC, Rattler Ajax Processing LLC, and Rattler OMOG LLC, as guarantors, and Wells Fargo Bank, National Association, as trustee (including the form of Rattler Midstream LP’s 5.625% Senior Notes due 2025) (incorporated by reference to Exhibit 4.1 to the Form 8-K, File No. 001-38919, filed by Rattler Midstream LP with the SEC on July 14, 2020).

EX-4.1 Exhibit 4.1 RATTLER MIDSTREAM LP AND EACH OF THE GUARANTORS PARTY HERETO 5.625% SENIOR NOTES DUE 2025 INDENTURE Dated as of July 14, 2020 WELLS FARGO BANK, NATIONAL ASSOCIATION Trustee TABLE OF CONTENTS Page ARTICLE 1 DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.01 Definitions 1 Section 1.02 Other Definitions 28 Section 1.03 Limited Incorporation by Reference of Trust Indenture Act

Subordinated Promissory Note, dated as of July 14, 2020, made by Rattler Midstream Operating LLC payable to Rattler Midstream LP (incorporated by reference to Exhibit 10.2 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on July 14, 2020).

EX-10.2 Exhibit 10.2 SUBORDINATED PROMISSORY NOTE THIS NOTE HAS NOT BEEN AND WILL NOT BE REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED, OR THE SECURITIES LAWS OF ANY STATE OR ANY OTHER JURISDICTION AND MAY NOT BE SOLD, TRANSFERRED, OR OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER SUCH ACT AND APPLICABLE STATE SECURITIES LAWS OR PURSUANT TO AN APPLICAB

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): July 9, 2020 RATTLER MIDSTREAM LP (Exact name of registrant as specified in its charter) Delaware 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File

Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Prices $500 Million Offering of 5.625% Senior Notes

EX-99.1 Exhibit 99.1 Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Prices $500 Million Offering of 5.625% Senior Notes Midland, TX, (July 9, 2020) (GLOBE NEWSWIRE) – Rattler Midstream LP (NASDAQ: RTLR) (“Rattler”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), announced today that it has priced at par an offering of $500 million aggregate principal amou

RTLR / Rattler Midstream LP Common Units / KAYNE ANDERSON CAPITAL ADVISORS LP - SC 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G UNDER THE SECURITIES EXCHANGE ACT OF 1934 Rattler Midstream LP (Name of Issuer) COMMON UNITS (Title of Class of Securities) 75419T103 (CUSIP Number) Check the following box if a fee is being paid with this statement [ ]. (A fee is not required only if the filing person: (1) has a previous statement on file reporti

Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Launches $500 Million Offering of Senior Notes

EX-99.1 Exhibit 99.1 Rattler Midstream LP, a Subsidiary of Diamondback Energy, Inc., Launches $500 Million Offering of Senior Notes MIDLAND, Texas, July 07, 2020 (GLOBE NEWSWIRE) — Rattler Midstream LP (NASDAQ: RTLR) (“Rattler”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), announced today that it proposes to offer, subject to market conditions and other factors, $500 m

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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): July 7, 2020 RATTLER MIDSTREAM LP (Exact name of registrant as specified in its charter) Delaware 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File

First Amendment to Amended and Restated Produced and Flowback Water Gathering and Disposal Agreement by and between Diamondback E&P LLC, Energen Resources Corporation, Diamondback O&G LLC and Rattler Midstream Operating LLC, effective as of May 5, 2020 (incorporated by reference to Exhibit 10.4 of the Registrant’s Quarterly Report on Form 10-Q (File No. 001-38919) filed on May 8, 2020).

Exhibit 10.4 INFORMATION IN THIS EXHIBIT IDENTIFIED BY BRACKETS AND THREE ASTERISKS [***] IS CONFIDENTIAL AND HAS BEEN EXCLUDED PURSUANT TO ITEM 601(B)(10)(IV) OF REGULATION S-K BECAUSE IT (I) IS NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO THE REGISTRANT IF PUBLICLY DISCLOSED. Execution Version FIRST AMENDMENT TO PRODUCED AND FLOWBACK WATER GATHERING AND DISPOSAL AGREEMENT This Fi

Quarterly Report - 10-Q

Table of Contents 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, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Regis

First Amendment to Freshwater Purchase and Services Agreement by and between Diamondback E&P LLC, Diamondback O&G LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of May 5, 2020 (incorporated by reference to Exhibit 10.5 of the Registrant’s Quarterly Report on Form 10-Q (File No. 001-38919) filed on May 8, 2020).

Exhibit 10.5 INFORMATION IN THIS EXHIBIT IDENTIFIED BY BRACKETS AND THREE ASTERISKS [***] IS CONFIDENTIAL AND HAS BEEN EXCLUDED PURSUANT TO ITEM 601(B)(10)(IV) OF REGULATION S-K BECAUSE IT (I) IS NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO THE REGISTRANT IF PUBLICLY DISCLOSED. Execution Version FIRST AMENDMENT TO FRESHWATER PURCHASE AND SERVICES AGREEMENT This First Amendment to F

First Amendment to Amended and Restated Crude Oil Gathering Agreement by and between Diamondback E&P LLC, Energen Resources Corporation, Diamondback O&G LLC and Rattler Midstream Operating LLC, effective as of May 5, 2020 (incorporated by reference to Exhibit 10.2 of the Registrant’s Quarterly Report on Form 10-Q (File No. 001-38919) filed on May 8, 2020).

Exhibit 10.2 INFORMATION IN THIS EXHIBIT IDENTIFIED BY BRACKETS AND THREE ASTERISKS [***] IS CONFIDENTIAL AND HAS BEEN EXCLUDED PURSUANT TO ITEM 601(B)(10)(IV) OF REGULATION S-K BECAUSE IT (I) IS NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO THE REGISTRANT IF PUBLICLY DISCLOSED. Execution Version FIRST AMENDMENT TO CRUDE OIL GATHERING AGREEMENT This First Amendment to Amended and Re

Second Amendment to Gas Gathering and Compression Agreement by and between Diamondback E&P LLC, Diamondback O&G LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of May 5, 2020 (incorporated by reference to Exhibit 10.3 of the Registrant’s Quarterly Report on Form 10-Q (File No. 001-38919) filed on May 8, 2020).

Exhibit 10.3 INFORMATION IN THIS EXHIBIT IDENTIFIED BY BRACKETS AND THREE ASTERISKS [***] IS CONFIDENTIAL AND HAS BEEN EXCLUDED PURSUANT TO ITEM 601(B)(10)(IV) OF REGULATION S-K BECAUSE IT (I) IS NOT MATERIAL AND (II) WOULD LIKELY CAUSE COMPETITIVE HARM TO THE REGISTRANT IF PUBLICLY DISCLOSED. Execution Version SECOND AMENDMENT TO GAS GATHERING AND COMPRESSION AGREEMENT This Second Amendment to Ga

Rattler Midstream LP Guidance

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS FIRST QUARTER 2020 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, May 6, 2020 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (“Rattler” or the “Company”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), today announced financial and operating results for the first quarter ended Ma

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 6, 2020 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number) (I.

RTLR / Rattler Midstream LP Common Units / Zimmer Partners, LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G (Rule 13d-102) (Amendment No.

Description of Securities of the Registrant.

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 the common units of Rattler Midstream LP (the “Partnership,” “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.

RTLR / Rattler Midstream LP Common Units 10-K - Annual Report - 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, 2019 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Registrant As Specified in Its Charter)

List of Subsidiaries of the Registrant.

Exhibit 21.1 Rattler Midstream LP Subsidiaries of Registrant Name of Subsidiary Jurisdiction of Incorporation Rattler Midstream Operating LLC Delaware Rattler Ajax Processing LLC Delaware Rattler OMOG LLC Delaware Tall City Towers LLC Delaware

2020 Form of Phantom Unit Agreement (incorporated by reference to Exhibit 10.41 of the Registrant’s Annual Report on Form 10-K (File No. 001-38919) filed on February 26, 2020).

RATTLER MIDSTREAM LP LONG-TERM INCENTIVE PLAN FORM OF PHANTOM UNIT AGREEMENT THIS PHANTOM UNIT AGREEMENT (this “Agreement”) is made and entered into by and between Rattler Midstream GP LLC, a Delaware limited liability company (the “General Partner”), and (“you”), effective as of (the “Date of Grant”).

Rattler Midstream LP Guidance

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS FOURTH QUARTER AND FULL YEAR 2019 FINANCIAL AND OPERATING RESULTS; INCREASES DISTRIBUTION MIDLAND, Texas, February 18, 2020 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (“Rattler” or the “Company”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), today announced financial and ope

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 18, 2020 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Numbe

RTLR / Rattler Midstream LP Common Units / TORTOISE CAPITAL ADVISORS, L.L.C. Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G* (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 (AMENDMENT NO. ONE )* Rattler Midstream LP (Name of Issuer) Common Units Representing Limited Partner Interests (Title of Class of Securities) 75419T103 (CUSIP Number) Decem

RTLR / Rattler Midstream LP Common Units / Clearbridge Investments, LLC - NONE Passive Investment

Schedule 13G UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. n/a )* RATTLER MIDSTREAM LP (Name of Issuer) Partnership Shares (Title of Class of Securities) 75419T103 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pur

RTLR / Rattler Midstream LP Common Units / HITE Hedge Asset Management LLC Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, DC 20549 SCHEDULE 13G* Under the Securities Exchange Act of 1934 Rattler Midstream LP (Name of Issuer) Common units representing limited partner interests (Title of Class of Securities) 75419T103 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which th

RELIANCE GATHERING, LLC Financial Statements September 30, 2019 and 2018

EX-99.2 Table of Contents Exhibit 99.2 RELIANCE GATHERING, LLC Financial Statements September 30, 2019 and 2018 Table of Contents RELIANCE GATHERING, LLC Table of Contents Page Financial Statements: Balance Sheets 1 Statements of Income 2 Statements of Members’ Equity 3 Statements of Cash Flows 4 Notes to Financial Statements 5 Table of Contents RELIANCE GATHERING, LLC Balance Sheets September 30,

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 Date of Report (Date of earliest event reported): January 24, 2020 (November 7, 2019) RATTLER MIDSTREAM LP (Exact name of registrant as specified in its charter) DE 001-38919 83-1404608 (State or other jurisdictio

Rattler Midstream LP Unaudited Pro Forma Combined Balance Sheet As of September 30, 2019 Partnership Historical* Pro Forma Adjustments Partnership Pro Forma (In thousands, except unit amounts) Assets Current assets: Cash $ 2,694 $ — 2,694 Accounts re

EX-99.3 Exhibit 99.3 Rattler Midstream LP Unaudited Pro Forma Combined Balance Sheet As of September 30, 2019 Partnership Historical* Pro Forma Adjustments Partnership Pro Forma (In thousands, except unit amounts) Assets Current assets: Cash $ 2,694 $ — 2,694 Accounts receivable—related party 29,858 — 29,858 Accounts receivable—third party 2,894 — 2,894 Fresh water inventory 13,039 — 13,039 Other

RELIANCE GATHERING, LLC Financial Statements December 31, 2018 and 2017 (With Independent Auditors’ Report Thereon)

EX-99.1 Table of Contents Exhibit 99.1 RELIANCE GATHERING, LLC Financial Statements December 31, 2018 and 2017 (With Independent Auditors’ Report Thereon) Table of Contents RELIANCE GATHERING, LLC Table of Contents Page Independent Auditors’ Report 1 Financial Statements: Balance Sheets 2 Statements of Income 3 Statements of Members’ Equity 4 Statements of Cash Flows 5 Notes to Financial Statement

Rattler Midstream LP, A Subsidiary of Diamondback Energy, Inc., Announces Closing of Reliance Gathering Acquisition

Exhibit 99.1 Rattler Midstream LP, A Subsidiary of Diamondback Energy, Inc., Announces Closing of Reliance Gathering Acquisition Midland, TX (November 12, 2019) - Rattler Midstream LP (Nasdaq: RTLR) ("Rattler"), a subsidiary of Diamondback Energy, Inc. (Nasdaq: FANG) ("Diamondback"), announced today the closing of the previously announced acquisition of Reliance Gathering, LLC (“Reliance Gathering

Regulation FD Disclosure, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

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, 2019 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number

RTLR / Rattler Midstream LP Common Units 10-Q - Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED September 30, 2019 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Registrant As

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 5, 2019 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number

Rattler Midstream LP Guidance

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS THIRD QUARTER 2019 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, November 5, 2019 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) (“Rattler” or the “Company”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) (“Diamondback”), today announced financial and operating results for the third quarter end

First Amendment to the Credit Agreement, dated as of October 23, 2019, by and among Rattler Midstream Operating LLC, as borrower, Rattler Midstream LP, as parent, Wells Fargo Bank, National Association, as the administrative agent, and certain lenders from time to time party thereto (incorporated by reference to Exhibit 10.1 of Rattler Midstream LP’s Form 8-K (File 001-38919) filed on October 28, 2019).

Exhibit 10.1 FIRST AMENDMENT TO CREDIT AGREEMENT AND GUARANTY AND SECURITY AGREEMENT DATED AS OF OCTOBER 23, 2019 AMONG RATTLER MIDSTREAM LP, AS PARENT, RATTLER MIDSTREAM OPERATING LLC, AS BORROWER, WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT, THE LENDERS PARTY HERETO, AND WELLS FARGO SECURITIES, LLC, CREDIT SUISSE SECURITIES (USA) LLC, JPMORGAN CHASE BANK, N.A., AND MERRILL LY

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 Date of report (Date of earliest event reported): October 23, 2019 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number

Regulation FD Disclosure, 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 3, 2019 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number)

Rattler Midstream, a subsidiary of Diamondback Energy, and Oryx Midstream Announce Joint Acquisition of Reliance Gathering

Exhibit 99.1 Rattler Midstream, a subsidiary of Diamondback Energy, and Oryx Midstream Announce Joint Acquisition of Reliance Gathering Midland, TX (October 3, 2019) - Rattler Midstream LP (Nasdaq: RTLR) ("Rattler"), a subsidiary of Diamondback Energy, Inc. (Nasdaq: FANG) ("Diamondback"), and Oryx Midstream (“Oryx”), a portfolio company of Stonepeak Infrastructure Partners, announced today that th

RTLR / Rattler Midstream LP Common Units 10-Q - Quarterly Report - 10-Q

Table of Contents UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT UNDER SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 FOR THE QUARTERLY PERIOD ENDED June 30, 2019 OR ☐ TRANSITION REPORT UNDER SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 Commission File Number 001-38919 Rattler Midstream LP (Exact Name of Registrant As Spec

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 6, 2019 RATTLER MIDSTREAM LP (Exact Name of Registrant as Specified in Charter) DE 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission File Number)

Rattler Midstream LP

Exhibit 99.1 RATTLER MIDSTREAM LP, A SUBSIDIARY OF DIAMONDBACK ENERGY, INC., REPORTS SECOND QUARTER 2019 FINANCIAL AND OPERATING RESULTS MIDLAND, Texas, August 6, 2019 (GLOBE NEWSWIRE) - Rattler Midstream LP (NASDAQ: RTLR) ("Rattler" or the “Company”), a subsidiary of Diamondback Energy, Inc. (NASDAQ: FANG) ("Diamondback"), today announced financial and operating results for the second quarter end

RTLR / Rattler Midstream LP Common Units / TORTOISE CAPITAL ADVISORS, L.L.C. Passive Investment

SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 13G (Rule 13d-102) INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1(b), (c), AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO RULE 13d-2 Rattler Midstream LP (Name of Issuer) Common Units Representing Limited Partner Interests (Title of Class of Securities) 75419T103 (CUSIP Number) May 31, 2019 (Date of Event

RTLR / Rattler Midstream LP Common Units S-8 - - S-8

S-8 As filed with the Securities and Exchange Commission on May 29, 2019 Registration No.

Services and Secondment Agreement, dated as of May 28, 2019, by and among Diamondback Energy, Inc., Diamondback E&P LLC, Rattler Midstream GP LLC, Rattler Midstream LP, and Rattler Midstream Operating LLC (incorporated by reference to Exhibit 10.6 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-10.6 Exhibit 10.6 SERVICES AND SECONDMENT AGREEMENT AMONG DIAMONDBACK ENERGY, INC. DIAMONDBACK E&P LLC RATTLER MIDSTREAM GP LLC RATTLER MIDSTREAM LP AND RATTLER MIDSTREAM OPERATING LLC SERVICES AND SECONDMENT AGREEMENT This Services and Secondment Agreement (this “Agreement”), dated as of May 28, 2019 (the “Effective Date”), is entered into among Diamondback Energy, Inc., a Delaware corporation

Tax Sharing Agreement, dated as of May 28, 2019, by and between Diamondback Energy, Inc. and Rattler Midstream Operating LLC (incorporated by reference to Exhibit 10.7 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-10.7 Exhibit 10.7 TAX SHARING AGREEMENT BY AND BETWEEN DIAMONDBACK ENERGY, INC. AND RATTLER MIDSTREAM OPERATING LLC TAX SHARING AGREEMENT This Tax Sharing Agreement (the “Agreement”), dated this 28 day of May 2019, is entered into by and between DIAMONDBACK ENERGY, INC. (“DBE”), a Delaware corporation, and RATTLER MIDSTREAM OPERATING LLC (“Rattler”), a Delaware limited liability company. RECITA

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Entry into a Material Definitive Agreement, Material Modification to Rights of Security Holders, Unregistered Sales of Equity Securities, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant, Completion of Acquisition or Disposition of Assets

8-K 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 22, 2019 RATTLER MIDSTREAM LP (Exact name of registrant as specified in its charter) Delaware 001-38919 83-1404608 (State or other jurisdiction of incorporation) (Commission F

First Amended and Restated Limited Liability Company Agreement of Rattler Midstream GP LLC (incorporated by reference to Exhibit 3.3 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-3.3 Exhibit 3.3 FIRST AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT OF RATTLER MIDSTREAM GP LLC TABLE OF CONTENTS ARTICLE I DEFINITIONS Section 1.1 Definitions 1 Section 1.2 Construction 3 ARTICLE II ORGANIZATION Section 2.1 Formation 3 Section 2.2 Name 4 Section 2.3 Registered Office; Registered Agent; Principal Office; Other Offices 4 Section 2.4 Purpose and Business 4 Section 2.5

Exchange Agreement, dated as of May 28, 2019, by and among Rattler Midstream LP, Rattler Midstream GP LLC, Rattler Midstream Operating LLC and Energen Resources Corporation (incorporated by reference to Exhibit 10.1 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-10.1 Exhibit 10.1 EXCHANGE AGREEMENT BY AND AMONG ENERGEN RESOURCES CORPORATION RATTLER MIDSTREAM OPERATING LLC RATTLER MIDSTREAM GP LLC AND RATTLER MIDSTREAM LP TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.1 Definitions 1 Section 1.2 Gender 4 ARTICLE II EXCHANGE 4 Section 2.1 Redemption and Purchase Rights 4 Section 2.2 Expiration 7 Section 2.3 Adjustment 7 ARTICLE III MISCELLANEOU

Rattler Midstream LP Long-Term Incentive Plan, adopted effective as of May 22, 2019, (incorporated by reference to Exhibit 10.3 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-10.3 Exhibit 10.3 RATTLER MIDSTREAM LP LONG-TERM INCENTIVE PLAN 1. Purpose of the Plan. The Rattler Midstream LP Long-Term Incentive Plan (the “Plan”) has been adopted effective as of May 22, 2019 (the “Effective Date”) by Rattler Midstream GP LLC, a Delaware limited liability company, the general partner (“General Partner”) of Rattler Midstream LP, a Delaware limited partnership (the “Partners

Credit Agreement, dated May 28, 2019, by and among Rattler Midstream Operating LLC, as borrower, Rattler Midstream LP, as parent, Wells Fargo Bank, National Association, as the administrative agent, and certain lenders from time to time party thereto (incorporated by reference to Exhibit 10.2 to Rattler Midstream LP’s Form 8-K, File No. 001-38919, filed by Rattler Midstream LP with the SEC on May 29, 2019).

EX-10.2 Exhibit 10.2 Execution Version CREDIT AGREEMENT DATED AS OF MAY 28, 2019 AMONG RATTLER MIDSTREAM LP, As PARENT, RATTLER MIDSTREAM OPERATING LLC, AS BORROWER, WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT, THE LENDERS PARTY HERETO, AND WELLS FARGO SECURITIES, LLC, CREDIT SUISSE SECURITIES (USA) LLC, JPMORGAN CHASE BANK, N.A., AND MERRILL LYNCH, PIERCE, FENNER & SMITH INCOR

2019 Form of Phantom Unit Agreement (incorporated by reference 2019 Form of Phantom Unit Agreement (incorporated by reference to Exhibit 10.8 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019). Exhibit 10.8 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-10.8 Exhibit 10.8 RATTLER MIDSTREAM LP LONG-TERM INCENTIVE PLAN FORM OF PHANTOM UNIT AGREEMENT THIS PHANTOM UNIT AGREEMENT (this “Agreement”) is made and entered into by and between Rattler Midstream GP LLC, a Delaware limited liability company (the “General Partner”), and (“you”), effective as of (the “Date of Grant”). WHEREAS, Rattler Midstream LP, a Delaware limited partnership (the “Partner

Underwriting Agreement, dated as of May 22, 2019, by and among Rattler Midstream LP, Rattler Midstream GP LLC, Rattler Midstream Operating LLC, Diamondback Energy, Inc. and the several underwriters named therein.

EX-1.1 Exhibit 1.1 Execution Version RATTLER MIDSTREAM LP 38,000,000 Common Units Representing Limited Partner Interests UNDERWRITING AGREEMENT May 22, 2019 CREDIT SUISSE SECURITIES (USA) LLC BOFA SECURITIES, INC. J.P. MORGAN SECURITIES LLC As Representatives of the several Underwriters named in Schedule I c/o Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, New York 10010-3629 c

First Amended and Restated Agreement of Limited Partnership of Rattler Midstream LP, dated May 28, 2019 (incorporated by reference to Exhibit 3.1 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-3.1 Exhibit 3.1 FIRST AMENDED AND RESTATED AGREEMENT OF LIMITED PARTNERSHIP OF RATTLER MIDSTREAM LP TABLE OF CONTENTS Page ARTICLE I DEFINITIONS Section 1.1 Definitions 1 Section 1.2 Construction 10 ARTICLE II ORGANIZATION Section 2.1 Formation 11 Section 2.2 Name 11 Section 2.3 Registered Office; Registered Agent; Principal Office; Other Offices 11 Section 2.4 Purpose and Business 11 Section 2

Registration Rights Agreement, dated May 28, 2019, by and between Rattler Midstream LP and Energen Resources Corporation (incorporated by reference to Exhibit 4.1 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-4.1 Exhibit 4.1 REGISTRATION RIGHTS AGREEMENT BY AND BETWEEN RATTLER MIDSTREAM LP AND ENERGEN RESOURCES CORPORATION REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is made and entered into as of May 28, 2019, by and between Rattler Midstream LP, a Delaware limited partnership (the “Partnership”), and Energen Resources Corporation, an Alabama corporation (“Ene

Second Amended and Restated Limited Liability Company Agreement of Rattler Midstream Operating LLC (incorporated by reference to Exhibit 3.2 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-3.2 Exhibit 3.2 SECOND AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT OF RATTLER MIDSTREAM OPERATING LLC TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.1 Definitions 1 Section 1.2 Construction 10 ARTICLE II ORGANIZATION 11 Section 2.1 Formation 11 Section 2.2 Name 11 Section 2.3 Registered Office; Registered Agent; Principal Office; Other Offices 11 Section 2.4 Purpose and B

Form of Indemnification Agreement (incorporated by reference to Exhibit 10.4 of the Registrant’s Current Report on Form 8-K (File 001-38919) filed on May 29, 2019).

EX-10.4 Exhibit 10.4 FORM OF INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (the “Agreement”) is made and entered into as of May 22, 2019 by and among Rattler Midstream LP, a Delaware limited partnership (the “Partnership”), Rattler Midstream GP LLC, a Delaware limited liability company and general partner of the Partnership (the “General Partner”), and (“Indemnitee”). WITNESSETH THAT: W

Equity Contribution Agreement, dated as of May 28, 2019, by and between Rattler Midstream LP and Rattler Midstream Operating LLC.

EX-10.5 Exhibit 10.5 EQUITY CONTRIBUTION AGREEMENT BY AND BETWEEN RATTLER MIDSTREAM LP AND RATTLER MIDSTREAM OPERATING LLC EQUITY CONTRIBUTION AGREEMENT This Equity Contribution Agreement (this “Agreement”), dated as of May 28, 2019, is entered into by and between Rattler Midstream LP, a Delaware limited partnership (the “Partnership”), and Rattler Midstream Operating LLC, a Delaware limited liabi

Rattler Midstream LP 38,000,000 Common Units Representing Limited Partner Interests

Table of Contents Filed Pursuant to Rule 424(b)(4) Registration No. 333-226645 PROSPECTUS Rattler Midstream LP 38,000,000 Common Units Representing Limited Partner Interests This is the initial public offering of common units representing limited partner interests in Rattler Midstream LP. We are offering 38,000,000 common units in this offering. Prior to this offering, there has been no public mar

Form 8-A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 8-A FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES PURSUANT TO SECTION 12(b) OR 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 RATTLER MIDSTREAM LP (Exact name of registrant as specified in its charter) Delaware 83-1404608 (State of incorporation or organization) (I.R.S. Employer Identification No.) 500 West Texas Avenue

As filed with the Securities and Exchange Commission on May 22, 2019

As filed with the Securities and Exchange Commission on May 22, 2019 Registration No.

RTLR / Rattler Midstream LP Common Units CORRESP - -

Acceleration Request May 20, 2019 Via EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

RTLR / Rattler Midstream LP Common Units CORRESP - -

Acceleration Request RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 May 20, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporate Finance 100 F Street, N.

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESP RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 May 13, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

As filed with the Securities and Exchange Commission on May 13, 2019

Table of Contents As filed with the Securities and Exchange Commission on May 13, 2019 Registration No.

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESP RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 May 9, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

RTLR / Rattler Midstream LP Common Units CORRESP - -

begin 644 filename2 M)5!$1BTQ+C8-)>+CS],-"C$@,"!O8FH*/#PO365T861A=&$@,B P(%(O4&%G M97,@,R P(%(O5'EP92]#871A;&]G/CX*96YD;V)J"C(@,"!O8FH*/#PO3&5N M9W1H(#,R-C8O4W5B='EP92]834PO5'EP92]-971A9&%T83X^G)E4WI.

Gas Gathering and Compression Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018 (incorporated by reference to Exhibit 10.4 of Amendment No. 6 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on May 6, 2019).

Exhibit 10.4 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version GAS GATHERING AND COMPRESSION AGREEMENT BY AND B

Amended and Restated Crude Oil Gathering Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018 (incorporated by reference to Exhibit 10.6 of Amendment No. 6 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on May 6, 2019).

Exhibit 10.6 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version AMENDED AND RESTATED CRUDE OIL GATHERING AGREEME

As filed with the Securities and Exchange Commission on May 6, 2019

Table of Contents As filed with the Securities and Exchange Commission on May 6, 2019 Registration No.

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESP RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 May 6, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

Amended and Restated Produced and Flowback Water Gathering and Disposal Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018 (incorporated by reference to Exhibit 10.7 of Amendment No. 6 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on May 6, 2019).

Exhibit 10.7 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version AMENDED AND RESTATED PRODUCED AND FLOWBACK WATER

Freshwater Purchase and Services Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018 (incorporated by reference to Exhibit 10.8 of Amendment No. 6 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on May 6, 2019).

Exhibit 10.8 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version FRESHWATER PURCHASE AND SERVICES AGREEMENT BY AN

RTLR / Rattler Midstream LP Common Units CORRESP - -

Response Letter RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 April 25, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESP RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 April 4, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

As filed with the Securities and Exchange Commission on April 4, 2019

Table of Contents As filed with the Securities and Exchange Commission on April 4, 2019 Registration No.

As filed with the Securities and Exchange Commission on March 13, 2019

Table of Contents As filed with the Securities and Exchange Commission on March 13, 2019 Registration No.

Form of Phantom Unit Agreement

Exhibit 10.14 RATTLER MIDSTREAM LP LONG-TERM INCENTIVE PLAN FORM OF PHANTOM UNIT AGREEMENT THIS PHANTOM UNIT AGREEMENT (this ?Agreement?) is made and entered into by and between Rattler Midstream GP LLC, a Delaware limited liability company (the ?General Partner?), and (?you?), effective as of (the ?Date of Grant?). WHEREAS, Rattler Midstream LP, a Delaware limited partnership (the ?Partnership?),

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESP RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 March 13, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESP RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 February 27, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

RTLR / Rattler Midstream LP Common Units CORRESP - -

begin 644 filename2 M)5!$1BTQ+C8-)>+CS],-"C$@,"!O8FH*/#PO365T861A=&$@,B P(%(O4&%G M97,@,R P(%(O5'EP92]#871A;&]G/CX*96YD;V)J"C(@,"!O8FH*/#PO3&5N M9W1H(#,R-C8O4W5B='EP92]834PO5'EP92]-971A9&%T83X^G)E4WI.

Form of Rattler LLC Credit Agreement

Exhibit 10.3 FORM OF CREDIT AGREEMENT DATED AS OF [?], 2019 AMONG RATTLER MIDSTREAM LP, AS PARENT, RATTLER MIDSTREAM OPERATING LLC, AS BORROWER, WELLS FARGO BANK, NATIONAL ASSOCIATION, AS ADMINISTRATIVE AGENT, THE LENDERS PARTY HERETO, AND WELLS FARGO SECURITIES, LLC, CREDIT SUISSE SECURITIES (USA) LLC, JPMORGAN CHASE BANK, N.A., AND MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED, AS JOINT LEA

Gas Gathering and Compression Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018

Exhibit 10.4 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version GAS GATHERING AND COMPRESSION AGREEMENT BY AND B

Amended and Restated Produced and Flowback Water Gathering and Disposal Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018

Exhibit 10.7 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version AMENDED AND RESTATED PRODUCED AND FLOWBACK WATER

Contribution Agreement among Diamondback Energy, Inc., Diamondback E&P LLC, Energen Resources Corporation, Rattler Midstream Operating LLC and Tall City Towers LLC, effective as of January 1, 2019 (incorporated by reference to Exhibit 2.2 of Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on February 20, 2019).

Exhibit 2.2 Execution Version CONTRIBUTION AGREEMENT AMONG DIAMONDBACK ENERGY, INC., DIAMONDBACK E&P LLC, ENERGEN RESOURCES CORPORATION, RATTLER MIDSTREAM OPERATING LLC AND TALL CITY TOWERS LLC EFFECTIVE AS OF JANUARY 1, 2019 CONTRIBUTION AGREEMENT This Contribution Agreement (this ?Agreement?), is entered into on February 18, 2019, by and among Diamondback Energy, Inc., a Delaware corporation (?D

Amended and Restated Crude Oil Gathering Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018

Exhibit 10.6 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version AMENDED AND RESTATED CRUDE OIL GATHERING AGREEME

Freshwater Purchase and Services Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of January 1, 2018

EX-10.8 10 d596284dex108.htm EX-10.8 Exhibit 10.8 CERTAIN INFORMATION IN THIS EXHIBIT HAS BEEN REDACTED BECAUSE CONFIDENTIAL TREATMENT FOR SUCH INFORMATION HAS BEEN REQUESTED. THE REDACTED MATERIAL HAS BEEN SEPARATELY FILED WITH THE SECURITIES AND EXCHANGE COMMISSION, AND THE INFORMATION HAS BEEN MARKED AT THE APPROPRIATE PLACE WITH BRACKETS AND THREE ASTERISKS [***]. Execution Version FRESHWATER

Powers of Attorney (contained on the signature page to this Registration Statement)

Table of Contents As filed with the Securities and Exchange Commission on February 19, 2019 Registration No.

Form of Underwriting Agreement (including form of Lock-Up Agreement)

Exhibit 1.1 RATTLER MIDSTREAM LP [ ? ] Common Units Representing Limited Partner Interests UNDERWRITING AGREEMENT [ ? ], 2019 CREDIT SUISSE SECURITIES (USA) LLC MERRILL LYNCH, PIERCE, FENNER & SMITH INCORPORATED J.P. MORGAN SECURITIES LLC As Representatives of the several Underwriters named in Schedule I c/o Credit Suisse Securities (USA) LLC Eleven Madison Avenue New York, New York 10010-3629 c/o

First Amendment to Gas Gathering and Compression Agreement by and between Diamondback E&P LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), effective as of September 5, 2018 (incorporated by reference to Exhibit 10.5 of Amendment No. 3 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on February 20, 2019).

Exhibit 10.5 Execution Version FIRST AMENDMENT TO GAS GATHERING AND COMPRESSION AGREEMENT This First Amendment to Gas Gathering and Compression Agreement (this ?Amendment?) is executed on September 5, 2018 by and between Diamondback E&P LLC, a Delaware limited liability company (?Producer?) and Rattler Midstream LLC, a Delaware limited liability company (?Gatherer?). Producer and Gatherer may be r

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESPONDENCE RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 February 19, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

Lease Amendment No. 19 effective January 16, 2017 to Lease Agreement dated as of April 19, 2011, as amended, by and between Fasken Midland, LLC and Diamondback E&P LLC.

Exhibit 10.34 LEASE AMENDMENT # 19 DIAMONDBACK E & P LLC (Suite 400) FASKEN MIDLAND LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of January 16, 2017 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Lease Amendment #1 dated June 6, 2011, Lease Amendme

Form of Equity Contribution Agreement

Exhibit 10.13 FORM OF EQUITY CONTRIBUTION AGREEMENT BY AND BETWEEN RATTLER MIDSTREAM LP AND RATTLER MIDSTREAM OPERATING LLC FORM OF EQUITY CONTRIBUTION AGREEMENT This Equity Contribution Agreement (this ?Agreement?), dated as of , 2019, is entered into by and between Rattler Midstream LP, a Delaware limited partnership (the ?Partnership?), and Rattler Midstream Operating LLC, a Delaware limited li

Form of Indemnification Agreement

Exhibit 10.11 FORM OF INDEMNIFICATION AGREEMENT THIS INDEMNIFICATION AGREEMENT (the ?Agreement?) is made and entered into as of , 2019 by and among Rattler Midstream LP, a Delaware limited partnership (the ?Partnership?), Rattler Midstream GP LLC, a Delaware limited liability company and general partner of the Partnership (the ?General Partner?), and [ ] (?Indemnitee?). WITNESSETH THAT: WHEREAS, h

Lease Amendment No. 24 effective September 1, 2018 to Lease Agreement dated as of April 19, 2011, as amended, by and between Tall City Towers LLC and Diamondback E&P LLC.

Exhibit 10.39 FASKEN CENTER LEASE AMENDMENT #24 DIAMONDBACK E & P LLC (Suite 50) TALL CITY TOWERS LLC, successor to Fasken Midland LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of September 1, 2018 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Leas

Lease Amendment No. 25 effective September 20, 2018 to Lease Agreement dated as of April 19, 2011, as amended, by and between Tall City Towers LLC and Diamondback E&P LLC.

Exhibit 10.40 FASKEN CENTER LEASE AMENDMENT #25 DIAMONDBACK E & P LLC (Suite 820) TALL CITY TOWERS LLC, successor to Fasken Midland LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of September 20, 2018 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Le

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESPONDENCE RATTLER MIDSTREAM LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 January 22, 2019 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

Form of First Amended and Restated Limited Liability Company Agreement of Rattler Midstream GP LLC

Exhibit 3.9 FORM OF FIRST AMENDED AND RESTATED LIMITED LIABILITY COMPANY AGREEMENT OF RATTLER MIDSTREAM GP LLC TABLE OF CONTENTS ARTICLE I DEFINITIONS Section 1.1 Definitions 1 Section 1.2 Construction 3 ARTICLE II ORGANIZATION Section 2.1 Formation 3 Section 2.2 Name 4 Section 2.3 Registered Office; Registered Agent; Principal Office; Other Offices 4 Section 2.4 Purpose and Business 4 Section 2.5

Form of Exchange Agreement

Exhibit 10.9 FORM OF EXCHANGE AGREEMENT BY AND AMONG DIAMONDBACK ENERGY, INC. RATTLER MIDSTREAM OPERATING LLC RATTLER MIDSTREAM GP LLC AND RATTLER MIDSTREAM LP TABLE OF CONTENTS Page ARTICLE I DEFINITIONS 1 Section 1.1 Definitions 1 Section 1.2 Gender 4 ARTICLE II EXCHANGE 4 Section 2.1 Redemption and Purchase Rights 4 Section 2.2 Expiration 7 Section 2.3 Adjustment 7 ARTICLE III MISCELLANEOUS PRO

Certificate of Amendment to the Certificate of Limited Partnership of Rattler Midstream LP (incorporated by reference to Exhibit 3.2 of Amendment No. 2 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on January 22, 2019).

Exhibit 3.2 CERTIFICATE OF AMENDMENT TO THE CERTIFICATE OF LIMITED PARTNERSHIP OF RATTLER MIDSTREAM PARTNERS LP The undersigned, desiring to amend the Certificate of Limited Partnership of Rattler Midstream Partners LP (the ?Partnership?), pursuant to the provisions of Section 17-202 of the Revised Uniform Limited Partnership Act of the State of Delaware, does hereby certify as follows: 1. The nam

As filed with the Securities and Exchange Commission on January 22, 2019

Table of Contents As filed with the Securities and Exchange Commission on January 22, 2019 Registration No.

Form of Phantom Unit Agreement

Exhibit 10.14 RATTLER MIDSTREAM LP LONG-TERM INCENTIVE PLAN PHANTOM UNIT AGREEMENT THIS PHANTOM UNIT AGREEMENT (this ?Agreement?) is made and entered into by and between Rattler Midstream GP LLC, a Delaware limited liability company (the ?General Partner?), and (?you?), effective as of (the ?Date of Grant?). WHEREAS, Rattler Midstream LP, a Delaware limited partnership (the ?Partnership?), acting

Lease Amendment No. 21 effective October 4, 2017 to Lease Agreement dated as of April 19, 2011, as amended, by and between Fasken Midland, LLC and Diamondback E&P LLC.

Exhibit 10.36 LEASE AMENDMENT # 21 DIAMONDBACK E & P LLC (Suite 1400) FASKEN MIDLAND LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of October 4, 2017 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Lease Amendment #1 dated June 6, 2011, Lease Amendme

Certificate of Amendment to the Certificate of Formation of Rattler Midstream Operating LLC (formerly Rattler Midstream LLC) (incorporated by reference to Exhibit 3.6 of Amendment No. 2 to the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on January 22, 2019).

Exhibit 3.6 CERTIFICATE OF AMENDMENT TO THE CERTIFICATE OF FORMATION OF RATTLER MIDSTREAM LLC The undersigned, desiring to amend the Certificate of Formation of Rattler Midstream LLC (the ?Company?), pursuant to the provisions of the Delaware Limited Liability Company Act, does hereby certify as follows: 1. Name of Company is Rattler Midstream LLC. 2. The Certificate of Formation of the Company wa

Lease Amendment No. 23 effective September 1, 2018 to Lease Agreement dated as of April 19, 2011, as amended, by and between Tall City Towers LLC and Diamondback E&P LLC.

Exhibit 10.38 LEASE AMENDMENT #23 DIAMONDBACK E & P LLC (Suite 1410) TALL CITY TOWERS LLC, successor to Fasken Midland LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of September 1, 2018 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Lease Amendment

Lease Amendment No. 22 effective March 6, 2018 to Lease Agreement dated as of April 19, 2011, as amended, by and between Tall City Towers LLC and Diamondback E&P LLC.

Exhibit 10.37 LEASE AMENDMENT # 22 DIAMONDBACK E & P LLC (Suite 500) TALL CITY TOWERS LLC, successor to Fasken Midland LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of March 6, 2018 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Lease Amendment #1 d

Lease Amendment No. 18 effective January 16, 2017 to Lease Agreement dated as of April 19, 2011, as amended, by and between Fasken Midland, LLC and Diamondback E&P LLC.

Exhibit 10.33 LEASE AMENDMENT # 18 DIAMONDBACK E & P LLC (Suite 1425) FASKEN MIDLAND LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of January 16, 2017 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Lease Amendment #1 dated June 6, 2011, Lease Amendm

Form of Rattler Midstream LP 2018 Long-Term Incentive Plan

Exhibit 10.1 FORM OF RATTLER MIDSTREAM LP LONG-TERM INCENTIVE PLAN 1. Purpose of the Plan. The Rattler Midstream LP Long-Term Incentive Plan (the ?Plan?) has been adopted effective as of [ ] (the ?Effective Date?) by Rattler Midstream GP LLC, a Delaware limited liability company, the general partner (?General Partner?) of Rattler Midstream LP, a Delaware limited partnership (the ?Partnership?). Th

Lease Amendment No. 20 effective January 16, 2017 to Lease Agreement dated as of April 19, 2011, as amended, by and between Fasken Midland, LLC and Diamondback E&P LLC.

Exhibit 10.35 LEASE AMENDMENT # 20 DIAMONDBACK E & P LLC (Suite 1445) FASKEN MIDLAND LLC (hereinafter called ?Lessor?) and DIAMONDBACK E & P LLC, successor to Windsor Permian, LLC (hereinafter called ?Lessee?), effective as of January 16, 2017 (the ?Effective Date?), do hereby amend that certain Lease Agreement dated April 19, 2011, as amended by Lease Amendment #1 dated June 6, 2011, Lease Amendm

Form of Services and Secondment Agreement

Exhibit 10.2 FORM OF SERVICES AND SECONDMENT AGREEMENT AMONG DIAMONDBACK ENERGY, INC. DIAMONDBACK E&P LLC RATTLER MIDSTREAM GP LLC RATTLER MIDSTREAM LP AND RATTLER MIDSTREAM OPERATING LLC 1 FORM OF SERVICES AND SECONDMENT AGREEMENT This Services and Secondment Agreement (this ?Agreement?), dated as of [?], 2019 (the ?Effective Date?), is entered into among Diamondback Energy, Inc., a Delaware corp

Form of Registration Rights Agreement

Exhibit 10.10 REGISTRATION RIGHTS AGREEMENT BY AND BETWEEN RATTLER MIDSTREAM LP AND DIAMONDBACK ENERGY, INC. REGISTRATION RIGHTS AGREEMENT THIS REGISTRATION RIGHTS AGREEMENT (this ?Agreement?) is made and entered into as of [?], 2019, by and between Rattler Midstream LP, a Delaware limited partnership (the ?Partnership?), and Diamondback Energy, Inc., a Delaware corporation (the ?Sponsor?). WHEREA

Form of Tax Sharing Agreement

Exhibit 10.12 FORM OF TAX SHARING AGREEMENT BY AND AMONG DIAMONDBACK ENERGY, INC. AND RATTLER MIDSTREAM OPERATING LLC TAX SHARING AGREEMENT This Tax Sharing Agreement (the ?Agreement?), dated this [ ] day of [ ], is entered into by and among DIAMONDBACK ENERGY, INC. (?DBE?), a Delaware corporation, and RATTLER MIDSTREAM OPERATING LLC (?Rattler?), a Delaware limited liability company. RECITALS WHER

Amended and Restated Contribution Agreement among Diamondback Energy, Inc., Diamondback E&P LLC, Diamondback O&G LLC and Rattler Midstream Operating LLC (formerly Rattler Midstream LLC), dated as of July 31, 2018

Exhibit 2.1 Execution Version AMENDED AND RESTATED CONTRIBUTION AGREEMENT AMONG DIAMONDBACK ENERGY, INC. DIAMONDBACK E&P LLC DIAMONDBACK O&G LLC AND RATTLER MIDSTREAM LLC DATED AS OF JULY 31, 2018 AMENDED AND RESTATED CONTRIBUTION AGREEMENT This Amended and Restated Contribution Agreement (this ?Agreement?), dated as of July 31, 2018, is entered into by and among Diamondback Energy, Inc., a Delawa

As filed with the Securities and Exchange Commission on October 5, 2018

Table of Contents As filed with the Securities and Exchange Commission on October 5, 2018 Registration No.

List of Subsidiaries of Rattler Midstream LP

Exhibit 21.1 Rattler Midstream Partners LP List of Subsidiaries Name Jurisdiction of Organization Rattler Midstream LLC Delaware Tall City Towers LLC Delaware

Consent of Director Nominee, Steven E. West

EX-23.7 Exhibit 23.7 CONSENT OF DIRECTOR NOMINEE Pursuant to Rule 438 of Regulation C promulgated under the Securities Act of 1933, as amended (the “Securities Act”), in connection with the Registration Statement on Form S-1 of Rattler Midstream Partners LP filed with the Securities and Exchange Commission (File No. 333-226645) (the “Registration Statement”), the undersigned hereby consents to bei

RTLR / Rattler Midstream LP Common Units CORRESP - -

CORRESPONDENCE RATTLER MIDSTREAM PARTNERS LP 500 West Texas Avenue Suite 1200 Midland, Texas 79701 October 5, 2018 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance Mail Stop 3561 100 F.

Certificate of Amendment to the Certificate of Formation of Rattler Midstream Operating LLC (formerly White Fang Energy LLC) (incorporated by reference to Exhibit 3.4 of the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on August 7, 2018).

Exhibit 3.4 CERTIFICATE OF AMENDMENT TO THE CERTIFICATE OF FORMATION OF WHITE FANG ENERGY LLC The undersigned, desiring to amend the Certificate of Formation of White Fang Energy LLC (the ?Company?), pursuant to the provisions of the Delaware Limited Liability Company Act, does hereby certify as follows: 1. The name of the Company is White Fang Energy LLC. 2. The Certificate of Formation of the Co

Powers of Attorney (contained on the signature page to this Registration Statement)

Table of Contents As filed with the Securities and Exchange Commission on August 7, 2018 Registration No.

Certificate of Limited Partnership of Rattler Midstream LP (incorporated by reference to Exhibit 3.1 of the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on August 7, 2018).

Exhibit 3.1 CERTIFICATE OF LIMITED PARTNERSHIP OF RATTLER MIDSTREAM PARTNERS LP This Certificate of Limited Partnership of Rattler Midstream Partners LP (the ?Limited Partnership?), dated July 27, 2018, is being executed and filed by the undersigned general partner to form a limited partnership under the Delaware Revised Uniform Limited Partnership Act (6 Del. C. ? 17-101, et seq.) FIRST. The name

Certificate of Formation of Rattler Midstream Operating LLC (formerly White Fang Energy LLC) (incorporated by reference to Exhibit 3.3 of the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on August 7, 2018).

Exhibit 3.3 CERTIFICATE OF FORMATION OF WHITE FANG ENERGY LLC This Certificate of Formation of White Fang Energy LLC is being duly executed and filed by the undersigned, as an authorized person, to form a limited liability company under the Delaware Limited Liability Company Act (6 Del. C. ? 18-101, et seq.). FIRST. The name of the limited liability company formed hereby is ?White Fang Energy LLC.

Certificate of Formation of Rattler Midstream GP LLC (incorporated by reference to Exhibit 3.6 of the Registrant’s Registration Statement on Form S-1 (File No. 333-226645) filed on August 7, 2018).

Exhibit 3.6 CERTIFICATE OF FORMATION OF RATTLER MIDSTREAM GP LLC This Certificate of Formation of Rattler Midstream GP LLC (the ?Company?), dated July 27, 2018, is being duly executed and filed by the undersigned, as an authorized person, to form a limited liability company under the Delaware Limited Liability Company Act (6 Del. C. ?18-101, et seq.) FIRST. The name of the limited liability compan