UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 or 15(d) of

the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): May 24, 2016

PIONEER ENERGY SERVICES CORP.

(Exact name of registrant as specified in its charter)

Texas	1-8182	74-2088619
(State or other jurisdiction of incorporation)	(Commission File Number)	(IRS Employer Identification No.)

1250 NE Loop 410, Suite 1000 San Antonio, Texas	78209
(Address of principal executive offices)	(ZIP Code)

Registrant's telephone number, including area code: (855) 884-0575

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):

[ ]  Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

[ ]  Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

[ ]  Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

[ ]  Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 7.01 Regulation FD Disclosure.

From time to time, senior management of Pioneer Energy Services (the “Company”) meets with groups of investors and business analysts. The slides attached to this report have been prepared in connection with management's participation in such meetings and participation in the UBS Global Oil and Gas Conference on May 24, 2016. The slides provide an update on the Company's operations and certain recent developments, which among others, include the following:

• Drilling

◦ April month-to-date utilization was 40%; current utilization is 42% based on a total fleet of 31 rigs

◦ All rigs in Colombia are currently idle

• Well Servicing

◦ April month-to-date utilization was 37% as compared to 44% in the prior quarter

◦ May month-to-date utilization is approximately 40%

• Coiled Tubing

◦ April month-to-date utilization was 18% as compared to 24% in the prior quarter

The slides are included in Exhibit 99.1 to this report and are incorporated herein by reference. The slides are available on the Company's website at www.pioneeres.com.

Safe Harbor Statement

Statements contained in this report and Exhibit 99.1 to this report that state the Company's or its management's expectations and assumptions about future events are forward-looking statements intended to be covered by the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. It is important to note that the Company's actual results could differ materially from those projected or assumed in such forward-looking statements. Factors that could affect those results include, among others, those mentioned in the Company's annual report on Form 10-K for the fiscal year ended December 31, 2015 which has been filed with the Securities and Exchange Commission.

Item 9.01 Financial Statements and Exhibits.

(d)Exhibits.

99.1Slides for Company presentations to be used from time to time.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

PIONEER ENERGY SERVICES CORP.

/s/ Lorne E. Phillips

Lorne E. Phillips

Executive Vice President and Chief Financial Officer

Dated: May 24, 2016