FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   CHAI TRUST CO LLC 2. Date of Event Requiring Statement (Month/Day/Year) 11/09/2018 3. Issuer Name and Ticker or Trading Symbol Exterran Corp [EXTN] (Last) (First) (Middle) TWO NORTH RIVERSIDE PLAZA, SUITE 600 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) CHICAGO, IL 60606 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) 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) Common Stock 447,567 I By EGI-Fund (05-07) Investors, L.L.C. (1) Common Stock 332,327 I By EGI-Fund (08-10) Investors, L.L.C. (2) Common Stock 908,742 I By EGI-Fund (11-13) Investors, L.L.C. (3) Common Stock 1,849,806 I By EGI-Fund B, L.L.C. (4) Common Stock 76,850 I By EGI-Fund C, L.L.C. (5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		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)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
CHAI TRUST CO LLC TWO NORTH RIVERSIDE PLAZA SUITE 600 CHICAGO, IL 60606	Â	Â	Â	Â

Signatures

Chai Trust Company, LLC; By: /s/ Philip G. Tinkler, Chief Financial Officer		11/14/2018
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Chai Trust Company, LLC is the non-member manager of EGI-Fund (05-07) Investors, L.L.C. and accordingly may be deemed to beneficially own these shares of Common Stock held directly by EGI-Fund (05-07) Investors, L.L.C.
(2)	Chai Trust Company, LLC is the non-member manager of EGI-Fund (08-10) Investors, L.L.C. and accordingly may be deemed to beneficially own these shares of Common Stock held directly by EGI-Fund (08-10) Investors, L.L.C.
(3)	Chai Trust Company, LLC is the non-member manager of EGI-Fund (11-13) Investors, L.L.C. and accordingly may be deemed to beneficially own these shares of Common Stock held directly by EGI-Fund (11-13) Investors, L.L.C.
(4)	Chai Trust Company, LLC is the managing member of EGI-Fund B, L.L.C. and accordingly may be deemed to beneficially own these shares of Common Stock held directly by EGI-Fund B, L.L.C.
(5)	Chai Trust Company, LLC is the managing member of EGI-Fund C, L.L.C. and accordingly may be deemed to beneficially own these shares of Common Stock held directly by EGI-Fund C, L.L.C.

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