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
                                                                                  
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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 *

Tucker Brian L
2. Issuer Name and Ticker or Trading Symbol

PIONEER ENERGY SERVICES CORP [ PES ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                    _____ 10% Owner
__X__ Officer (give title below)    _____ Other (specify below)
EVP, COO
(Last)          (First)          (Middle)

1250 NE LOOP 410 #1000
3. Date of Earliest Transaction (MM/DD/YYYY)

4/30/2020
(Street)

SAN ANTONIO, TX 78209
(City)        (State)        (Zip)
4. 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 Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. 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 4/30/2020  A  41852 (1)A$0 183326 D  
Common Stock 4/30/2020  F  10190 (2)D$.02 173136 D  

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security3. Trans. Date3A. Deemed Execution Date, if any4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date7. Title and Amount of Securities Underlying Derivative Security
(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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount or Number of Shares

Explanation of Responses:
(1) These shares were issued pursuant to the vesting of shares under a performance-based restricted stock unit award granted under the Pioneer Energy Services Corp. Amended and Restated 2007 Incentive Plan. The performance criteria achieved was based upon the Company's EBITDA growth, EBITDA return on capital employed, and total shareholder return growth versus a defined group of eleven peer companies over a three-year performance period.
(2) These shares were withheld by the issuer to pay for the applicable withholding tax due upon vesting.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director10% OwnerOfficerOther
Tucker Brian L
1250 NE LOOP 410 #1000
SAN ANTONIO, TX 78209


EVP, COO

Signatures
Bryce Seki, Attorney-in-fact for Brian L. Tucker5/1/2020
**Signature of Reporting PersonDate