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 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 *
Baker Christopher J.
  2. Issuer Name and Ticker or Trading Symbol
Quintana Energy Services Inc. [QES]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
See Remarks
(Last)
(First)
(Middle)
1415 LOUISIANA STREET, SUITE 2900
3. Date of Earliest Transaction (Month/Day/Year)
02/09/2019
(Street)

HOUSTON, TX 77002
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 02/09/2019   M(1)   12,667 A (2) 93,654 D  
Common stock 02/09/2019   F   4,347 (3) D $ 4.95 89,307 D  
Common stock 02/09/2019   M(4)   7,600 A (2) 96,907 D  
Common stock 02/09/2019   F   2,608 (5) D $ 4.95 94,299 D  

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
Restricted Stock Unit (2) 02/09/2019   M     12,668   (1)   (1) Common stock 12,668.00 $ 0 25,332 (1) D  
Performance Share Unit (6) 02/09/2019   M     7,600   (4)   (4) Common stock 7,600.00 $ 0 15,200 (4) D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Baker Christopher J.
1415 LOUISIANA STREET, SUITE 2900
HOUSTON, TX 77002
      See Remarks  

Signatures

 /s/ Max L. Bouthillette, attorney-in-fact   02/12/2019
**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) Represents the conversion upon vesting of certain restricted stock units into common stock of the Company. As previously reported on April 20, 2018, the reporting person was granted 38,000 restricted stock units on April 18, 2018, of which one-third vested on February 9, 2019 in accordance with the Company's 2018 Long Term Incentive Plan. Vesting shall occur on the remaining restricted stock units on the first and second anniversaries of February 9, 2019.
(2) Each restricted stock unit represents the right to receive, upon vesting, one share of Company common stock.
(3) Reflects 4,347 shares withheld by the Company at the market price of $4.95 per share to fund the payment of taxes for the restricted stock unit conversion.
(4) Represents the conversion upon vesting of certain performance share units (PSUs) into common stock of the Company. As previously reported on April 20, 2018, the reporting person was previously awarded 76,000 under the Company's Long Term Incentive Plan on April 18, 2018. The PSUs vest and are settled when they have performance vested in accordance with certain achieved goals that are based on (i) relative total stockholder return and (ii) absolute total stockholder return. It has been determined that 22,800 of those PSUs are earned and eligible for vesting. On February 9, 2019, one-third of the PSUs earned were vested and settled. Should the reporting person satisfy the service requirement applicable to such earned performance units, vesting shall occur on the remaining PSUs in equal installments on the first and second anniversaries of February 9, 2019
(5) Reflects 2,608 shares withheld by the Company at the market price of $4.95 per share to fund the payment of taxes for the performance share unit conversion.
(6) Each performance share unit represents the right to receive, upon vesting, one share of Company common stock.
 
Remarks:
Executive Vice President and Chief Operating Officer

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