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): February 5, 2013

KEY ENERGY SERVICES, INC.

(Exact name of registrant as specified in its charter)

1301 McKinney Street, Suite 1800

Houston, Texas 77010

(Address of principal executive offices and Zip Code)

713-651-4300

(Registrant’s telephone number, including area code)

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:

Item 7.01 Regulation FD Disclosure.

Key Energy Services, Inc. (the “Company”) plans to present at the 2013 Credit Suisse Energy Summit, on February 6, 2013 in Vail, Colorado. As previously announced in a news release issued by the Company on January 22, 2013, this presentation will be available via live webcast. A replay of the presentation will also be available at the Company’s website, www.keyenergy.com, under “Investor Relations”. During the presentation, among other matters, the Company plans to discuss the following:

A copy of the slides to be used in connection with the presentation is attached as Exhibit 99.1, and is incorporated herein by reference. The information contained in this Item 7.01 shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, except as shall be expressly set forth by specific reference in such a filing.

* * * *

This Current Report on Form 8-K, the attached presentation materials and the Company’s webcast presentation contain “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Any matters that are not of historic fact are forward-looking statements. These forward-looking statements are based on the Company’s current expectations, estimates and projections about the Company, its industry, its management’s beliefs and certain assumptions made by management, including the Company’s activity levels and capital expenditure expectations. No assurance can be given that such expectations, estimates or projections will prove to have been correct. Whenever possible, these forward-looking statements are identified by words such as “expects,” “believes,” “anticipates” and similar phrases.

Because such statements involve risks and uncertainties, the Company’s actual results and performance may differ materially from the results expressed or implied by such forward-looking statements. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements. Other important risk factors that may affect the Company’s business, results of operations and financial position are discussed in its most recently filed Annual Report on Form 10-K, recent Quarterly Reports on Form 10-Q, recent Current Reports on Form 8-K and in other Securities and Exchange Commission filings. Unless otherwise required by law, the Company also disclaims any obligation to update its view of any such risks or uncertainties or to announce publicly the result of any revisions to the forward-looking statements made here. However, readers should review carefully reports and documents that the Company files periodically with the Securities and Exchange Commission.

Item 9.01 Financial Statements and Exhibits.

SIGNATURE

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

Exhibit Index