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 ^*

Seki Bryce

2. Date of Event Requiring Statement (MM/DD/YYYY) 1/1/2018

3. Issuer Name and Ticker or Trading Symbol

PIONEER ENERGY SERVICES CORP [PES]

(Last) (First) (Middle)

1250 NE LOOP 410 #1000

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

_____ Director _____ 10% Owner
___ X ___ Officer (give title below) _____ Other (specify below)
VP General Counsel /

(Street)

SAN ANTONIO, TX 78209

(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)
Common Stock	15801	D

*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)
Employee Stock Option (right to buy)	⁽¹⁾	1/31/2022	Common Stock	7107	$8.92	D
Restricted Stock Units	⁽³⁾	⁽³⁾	Common Stock	924	⁽²⁾	D
Restricted Stock Units	⁽⁴⁾	⁽⁴⁾	Common Stock	4737	⁽²⁾	D
Restricted Stock Units	⁽⁵⁾	⁽⁵⁾	Common Stock	6000	⁽²⁾	D

Explanation of Responses:
(1)	The options are fully exercisable as of 01/08/2018
(2)	Restricted stock units convert into common stock on a one-for-one basis.
(3)	On January 29,2015, the reporting person was granted 2,772 restricted stock units, vesting one-third on January 29,2016, one-third on January 29,2017, and the final one-third on January 29,2018.
(4)	On January 28,2016, the reporting person was granted 7,105 restricted stock units, vesting one-third on January 28,2017, one-third on January 28,2018, and the final one-third on January 28,2019.
(5)	On May 23,2016, the reporting person was granted 9,000 restricted stock units, vesting one-third on May 23,2017, one-third on May 23,2018, and the final one-third on May 23,2019.

Reporting Owners
Reporting Owner Name / Address	Relationships
Reporting Owner Name / Address	Director	10% Owner	Officer	Other
Seki Bryce 1250 NE LOOP 410 #1000 SAN ANTONIO, TX 78209			VP General Counsel

Signatures
Bryce T Seki		1/8/2018
^** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
*	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).
Note:	File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.