Initial Statement of Beneficial Ownership (3)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 Estimated average burden hours per response... 0.5
	Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

1. Name and Address of Reporting Person ^*

Leininger Christopher M

2. Date of Event Requiring Statement (MM/DD/YYYY) 3/31/2020

3. Issuer Name and Ticker or Trading Symbol

Summit Midstream Partners, LP [SMLP]

(Last) (First) (Middle)

C/O ENERGY CAPITAL PARTNERS II, LP, 12680 HIGH BLUFF DRIVE, SUITE 400

4. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__X__ Director _____ 10% Owner
_____ Officer (give title below) ___X___ Other (specify below)
/ See Remarks.

(Street)

SAN DIEGO, CA 92130

(City) (State) (Zip)

5. If Amendment, Date Original Filed(MM/DD/YYYY)

6. Individual or Joint/Group Filing(Check Applicable Line)

_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)

*Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)*
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivate Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security		6. Nature of Indirect Beneficial Ownership (Instr. 5)

Explanation of Responses:

Remarks:
The Reporting Person is a director of Summit Midstream GP, LLC, the general partner of the Issuer (the "General Partner"). The Issuer is managed by the directors and executive officers of the General Partner. The Reporting Person also is an employee of Energy Capital Partners II, LLC, the general partner of the general partner of Energy Capital Funds II, LP and certain of its affiliates (collectively the "ECP Entities"). The ECP Entities are affiliates of Summit Midstream Partners, LLC, which is the sole owner of the General Partner. The Reporting Person is not deemed to beneficially own, and disclaims any beneficial ownership of, any common units or subordinated units of the Issuer held by the General Partner or Summit Midstream Partners, LLC.

No securities are beneficially owned.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Leininger Christopher M C/O ENERGY CAPITAL PARTNERS II, LP 12680 HIGH BLUFF DRIVE, SUITE 400 SAN DIEGO, CA 92130	X			See Remarks.