Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN 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. Issuer Name and Ticker or Trading Symbol
Exterran Corp [EXTN] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
(Last)
(First)
(Middle)
TWO NORTH RIVERSIDE PLAZA, SUITE 600		 3. Date of Earliest Transaction (Month/Day/Year)
12/06/2018
(Street)

CHICAGO, IL 60606		 4. If Amendment, Date Original Filed(Month/Day/Year)
 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 12/06/2018   P   10,640 A $ 21.2612 (1) 943,749 I By EGI-Fund C, L.L.C. (4)
Common Stock 12/07/2018   P   50,000 A $ 21.6386 (2) 993,749 I By EGI-Fund C, L.L.C. (4)
Common Stock 12/10/2018   P   58,500 A $ 21.0018 (3) 1,052,249 I By EGI-Fund C, L.L.C. (4)
Common Stock               447,567 I By EGI-Fund (05-07) Investors, L.L.C. (5)
Common Stock               332,327 I By EGI-Fund (08-10) Investors, L.L.C. (6)
Common Stock               908,742 I By EGI-Fund (11-13) Investors, L.L.C. (7)
Common Stock               1,849,806 I By EGI-Fund B, L.L.C. (8)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) 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		        

Signatures

 Chai Trust Company, LLC; By: /s/ Philip G. Tinkler, Chief Financial Officer   12/10/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(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) The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $20.95 to $21.55, inclusive. The reporting person undertakes to provide to Exterran Corporation., any security holder of Exterran Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price within the ranges set forth in footnotes (1) through (3).
(2) The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $21.32 to $22.00, inclusive.
(3) The price reported in Column 4 is a weighted average price. The shares were purchased in multiple transactions at prices ranging from $20.60 to $21.30, inclusive.
(4) 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.
(5) 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.
(6) 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.
(7) 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.
(8) 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.

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