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 12, 2005

                                Unit Corporation

             (Exact name of registrant as specified in its charter)



           Oklahoma                    1-9260                73-1283193
(State or other jurisdiction  (Commission File Number)    (I.R.S. Employer
      of incorporation)                                  Identification No.)



       7130 South Lewis, Suite 1000, Tulsa, Oklahoma           74136
          (Address of principal executive offices)           (Zip Code)


       Registrant's telephone number, including area code: (918) 493-7700

                                 Not Applicable
          (Former name or former address, if changed since last report)

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:


    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))



Section 7 - Regulation FD.

Item 7.01 Regulation FD Disclosure.
          ------------------------

     On May 12, 2005, the Company issued a press release announcing that its
wholly owned subsidiary, Unit Petroleum Company, has signed a purchase and sale
agreement to acquire certain oil and natural gas properties from a private
company for approximately $24.1 million in cash.

     The press release furnished as an exhibit to this report includes
forward-looking statements within the meaning of the Securities Act of 1933 and
the Securities Exchange Act of 1934. Such forward-looking statements are subject
to certain risks and uncertainties, as disclosed by the Company from time to
time in its filings with the Securities and Exchange Commission. As a result of
these factors, the Company's actual results may differ materially from those
indicated or implied by such forward-looking statements.

Section 9 - Financial Statements and Exhibits.

Item 9.01 Financial Statements and Exhibits.
          ---------------------------------

(a) Financial Statements of Businesses Acquired.
    --------------------------------------------

Not Applicable.


(b) Pro Forma Financial Information.
    --------------------------------

Not Applicable.


(c) Exhibits.
    ---------


     99.1  Unit Corporation press release dated May 12, 2005.


                                   SIGNATURES

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.


                                  Unit Corporation


Date: May 16, 2005           By:  /s/ David T. Merrill
                                  ----------------------
                                  Name:  David T. Merrill
                                  Title:  Chief Financial Officer &
                                          Treasurer






                                       2


                                 EXHIBIT INDEX
                                 -------------

Exhibit No.  Description

    99.1     Unit Corporation press release dated May 12, 2005.