Explanatory Note: This Amendment No. 13 (this Amendment) amends and
supplements the Statement on Schedule 13D filed on June 9, 2014, as amended by Amendment No. 1 on Schedule 13D/A filed on February 1, 2016, Amendment No. 2 on Schedule 13D/A filed on February 22, 2016, Amendment No. 3
on Schedule 13D/A filed on July 21, 2016, Amendment No. 4 on Schedule 13D/A filed on November 30, 2016, Amendment No. 5 on Schedule 13D/A filed on July 18, 2017, Amendment No. 6 on Schedule 13D/A filed on August 4,
2017, Amendment No. 7 on Schedule 13D/A filed on August 30, 2017, Amendment No. 8 on Schedule 13D/A filed on February 27, 2018, Amendment No. 9 on Schedule 13D/A filed on September 10, 2018 (Amendment
No. 9), Amendment No. 10 on Schedule 13D/A filed on August 5, 2019, Amendment No. 11 on Schedule 13D/A filed on December 4, 2020 and Amendment No. 12 on Schedule 13D/A filed on
February 23, 2021 (as previously amended, the Original Schedule 13D, and as further amended by this Amendment, the Schedule 13D/A), with the Securities and Exchange Commission (the
Commission) relating to the limited partner interests in Enable Midstream Partners, LP, a Delaware limited partnership (the Issuer or Partnership). Prior to Amendment
No. 9 filed jointly by CenterPoint Energy, Inc., a Texas corporation (CenterPoint), and CenterPoint Energy Midstream, Inc., a Delaware Corporation (CNP Midstream), the Original Schedule 13D
was filed jointly by CenterPoint and CenterPoint Energy Resources Corp., a Delaware corporation (CERC). Unless set forth below, all previous Items of the Original Schedule 13D are unchanged. Capitalized terms used herein
which are not defined herein have the meanings set forth in the Original Schedule 13D.
Item 4. Purposes of Transactions
Item 4 of the Schedule 13D is hereby amended and supplemented with the following additional disclosures:
Completion of the Partnership Merger
On
February 16, 2021, the Partnership entered into an Agreement and Plan of Merger (the Merger Agreement) with Energy Transfer LP, a Delaware limited partnership (Energy Transfer), Elk Merger Sub
LLC, a Delaware limited liability company and a direct wholly owned subsidiary of Energy Transfer (Merger Sub), Elk GP Merger Sub LLC, a Delaware limited liability company and a direct wholly owned subsidiary of Energy
Transfer (GP Merger Sub and, together with Energy Transfer and Merger Sub, the Energy Transfer Parties), the General Partner of the Partnership (the General Partner and,
together with the Partnership, the Enable Parties), and, solely for the purposes of Section 2.1(a)(i) therein, LE GP, LLC, a Delaware limited liability company and sole general partner of Energy Transfer
(Energy Transfer GP), and solely for the purposes of Section 1.1(b)(i) therein, CenterPoint.
On December 2, 2021, the Partnership completed its previously announced merger with Energy Transfer. Pursuant to the terms of the Merger Agreement, on
December 2, 2021, (i) Merger Sub merged with and into the Partnership (the LP Merger), with the Partnership surviving the LP Merger as a wholly owned subsidiary of Energy Transfer, (ii) GP Merger Sub merged with
and into the General Partner (the GP Merger and, together with the LP Merger, the Mergers), with the General Partner surviving the GP Merger as a direct wholly owned subsidiary of Energy Transfer
and (iii) CenterPoint contributed, assigned, transferred, conveyed and delivered to Energy Transfer, and Energy Transfer acquired, assumed, accepted and received from CenterPoint, all of CenterPoints right, title and interest in each 10%
Series A Fixed-to-Floating Non-Cumulative Redeemable Perpetual Preferred Unit representing a limited partner
interest in the Partnership (the Series A Preferred Units) issued and outstanding in exchange for 0.0265 newly issued 7.125% Series G Fixed-Rate Reset Cumulative Redeemable Perpetual Preferred Units of Energy Transfer (the
Energy Transfer Series G Preferred Units).
Pursuant to the terms of the Merger Agreement, on December 2, 2021, (i) Energy
Transfer acquired 100% of the Partnerships outstanding equity interests, resulting in the exchange of common units representing limited partner interests (the Common Units) of the Partnership owned by CenterPoint at
the transaction exchange ratio of 0.8595x Energy Transfer common units for each Common Unit, (ii) CenterPoint received $5 million in cash in exchange for its interest in the General Partner and (iii) CenterPoint received approximately
$385 million (liquidation preference) of Energy Transfer Series G Preferred Units in exchange for the Series A Preferred Units owned by CenterPoint.