(Rule 13d-101)
Information to be Included in Statements Filed Pursuant to § 240.13d-1(a) and
Amendments Thereto Filed Pursuant to § 240.13d-2(a)

Under the Securities Exchange Act of 1934
(Amendment No. 1)*

(Name of Issuer)

(Title of Class of Securities)

(CUSIP Number)

(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

(Date of Event Which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of §§ 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. o

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See § 240.13d-7 for other parties to whom copies are to be sent.

* The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

(1) Includes (i) 8,000,000 Common Units held of record by USA Compression GP, LLC and (ii) 38,056,228 Common Units held of record by Energy Transfer Operating, L.P.

(2) Based on a total of 96,600,171 Common Units outstanding as of July 30, 2019.

2

(1) Includes (i) 8,000,000 Common Units held of record by USA Compression GP, LLC and (ii) 38,056,228 Common Units held of record by Energy Transfer Operating, L.P.

(2) Based on a total of 96,600,171 Common Units outstanding as of July 30, 2019.

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(1) Includes (i) 8,000,000 Common Units held of record by USA Compression GP, LLC and (ii) 38,056,228 Common Units held of record by Energy Transfer Operating, L.P.

(2) Based on a total of 96,600,171 Common Units outstanding as of July 30, 2019.

4

(1) Based on a total of 96,600,171 Common Units outstanding as of July 30, 2019.

5

(1) Includes (i) 8,000,000 Common Units held of record by USA Compression GP, LLC and (ii) 38,056,228 Common Units held of record by Energy Transfer Operating, L.P.

(2) Based on a total of 96,600,171 Common Units outstanding as of July 30, 2019.

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(1) Includes (i) 8,000,000 Common Units held of record by USA Compression GP, LLC and (ii) 38,056,228 Common Units held of record by Energy Transfer Operating, L.P.

(2) Based on a total of 96,600,171 Common Units outstanding as of July 30, 2019.

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(1) Includes (i) 8,000,000 Common Units held of record by USA Compression GP, LLC and (ii) 38,056,228 Common Units held of record by Energy Transfer Operating, L.P.

(2) Based on a total of 96,600,171 Common Units outstanding as of July 30, 2019.

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EXPLANATORY NOTE

This Amendment No. 1 to Schedule 13D (this “Amendment No. 1”) amends and supplements the Statement on Schedule 13D filed with the United States Securities and Exchange Commission on April 11, 2018 (the “Statement”), relating to the common units representing limited partner interests (each a “Common Unit”) of USA Compression Partners, LP (the “Issuer”). Capitalized terms used herein without definition shall have the meaning set forth in the Statement.

Item 2.                                    Identity and Background

Item 2 is amended and restated in its entirety as follows:

(a)                                             This Schedule 13D is filed jointly by:

(i)                         Energy Transfer LP, a Delaware limited partnership (formerly, Energy Transfer Equity, L.P.) (“ET”);

(ii)                      LE GP, LLC, a Delaware limited liability company (“LE GP”);

(iii)                   Kelcy L. Warren (“Mr. Warren”);

(iv)                  USA Compression GP, LLC, a Delaware limited liability company (“USAC GP”);

(v)                     Energy Transfer Partners, L.L.C., a Delaware limited liability company (“ETP LLC”);

(vi)                  Energy Transfer Partners GP, L.P., a Delaware limited partnership (“ETP GP”); and

(vii)               Energy Transfer Operating, L.P., a Delaware limited partnership (formerly, Energy Transfer Partners, L.P.) (“ETO” and, collectively with ET, LE GP, Mr. Warren, USAC GP, ETP LLC and ETP GP, the “Reporting Persons”).

Information concerning the executive officers and board of directors or managers of each of the Reporting Persons, as applicable (collectively, the “Listed Persons”), including name, business address, present principal occupation or employment, and citizenship is listed on the attached Schedule I, which is incorporated herein by reference.

(b)                                             The address for each of the Reporting Persons except for USAC GP is 8111 Westchester Drive, Suite 600, Dallas, Texas 75225. The address for USAC GP is 100 Congress Avenue, Suite 450, Austin, TX 78701.

(c)                                              The principal business of ETO is to provide midstream services to producers and consumers of natural gas, NGLs, crude oil and refined products through its subsidiaries. The general partner of ETO is ETP GP. The principal business of ETP GP is serving as the general partner of ETO. The general partner of ETP GP is ETP LLC.  The principal business of ETP LLC is to serve as the general partner of ETP GP and to own certain equity securities of other entities, including 100% of the limited liability company interests in USAC GP.  The principal business of ET is to own all of the interests in the general partner of ETO and certain equity securities of ETO, to acquire interests in other publicly traded partnerships, and to pursue certain opportunities to acquire or construct natural gas midstream or transportation assets. The general partner of ET is LE GP.  The principal business of LE GP is serving as the general partner of ET. Mr. Warren is a United States citizen. His principal occupation is Chairman of the Board and Chief Executive Officer of ETP LLC and Chairman of the Board and Chief Executive Officer of LE GP.  The principal business of USAC GP is to serve as the general partner of the Issuer.

(d)-(e)                           During the past five years, none of the Reporting Persons, and none of the Listed Persons, (i) has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors) or (ii) was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction and as a result of such proceeding was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities laws or finding any violation with respect to such laws.

(f)                                               ETO, ETP GP, ETP LLC, ET, LE GP and USAC GP are each organized under the laws of the State of Delaware.

Mr. Warren is a citizen of the United States of America.  He is the Chairman of the Board and Chief Executive Officer of ETP LLC and Chairman of the Board and Chief Executive Officer of LE GP.

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Item 4.         Purpose of Transaction

Item 4 of the Statement is amended and supplemented as follows:

Simplification Transaction

ET and ETO completed the merger of ETO with a wholly-owned subsidiary of ET in a unit-for-unit exchange (the “Energy Transfer Merger”).  Immediately prior to the closing of the Energy Transfer Merger, ETP LLC contributed 12,466,912 Common Units of the Issuer and 100% of the limited liability company interests in USAC GP to ETO in exchange for common units representing limited partner interests in ETO.  As a result, ETO became the record holder of the Common Units of the Issuer previously held of record by ETP LLC and may be deemed to share beneficial ownership of the Common Units held of record by USAC GP.

Conversion of Class B Units

As previously disclosed, on April 2, 2018, ETO received 6,397,965 Class B units representing limited partner interests in the Issuer (the “Class B Units”) as partial consideration for ETO’s contribution to the Issuer of all of the outstanding membership interests in CDM Resource Management LLC and CDM Environmental & Technical Services LLC, which operated ETO’s compression business.

Pursuant to the terms of the Class B Units, the Class B Units converted into Common Units on a one-for-one basis (the “Class B Conversion”) for no additional consideration on July 30, 2019, the first business day following the record date attributable to the quarter ended June 30, 2019.

Item 5.         Interest in Securities of the Issuer

Item 5 is hereby amended and restated in its entirety as follows:

(a)-(b)                          After giving effect to the Class B Conversion, 96,600,171 Common Units were outstanding. USAC GP and ETO are the record holders of 8,000,000 and 38,056,228 Common Units, respectively. Mr Warren is the Chairman of the Board and holds a majority interest in LE GP, which is the general partner of ET. ET is the sole owner of ETP LLC, which is the general partner of ETP GP, which is the general partner of ETO. ETO is the sole owner of USAC GP, which is the general partner of the Issuer. As a result, each of the foregoing entities and individuals may be deemed to beneficially own the Common Units held of record by USAC GP and ETO, which represent approximately 47.7% of the total issued and outstanding Common Units.

(c)                                              Except as described in Item 4, during the past 60 days the Reporting Person has not effected any transaction in the Common Units.

(d)                                             Except as otherwise described herein, no other person other than the Reporting Persons is known to have the right to receive or the power to direct the receipt of distributions from, or the proceeds of sale of, the Common Units described in this Item 5.

(e)                                              Not applicable.

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SIGNATURES

After reasonable inquiry and to the best of their knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct.

August 5, 2019

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Schedule I

Energy Transfer Partners, L.L.C.

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LE GP, LLC

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USA Compression GP, LLC

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