<PAGE>
   AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 19, 2000
                                                    REGISTRATION NO. 333-
================================================================================
                        SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8

              REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                                UNIT CORPORATION
              (Exact name of registrant as specified in its charter)

                             1000 KENSINGTON TOWER I
                                 7130 SOUTH LEWIS
                              TULSA, OKLAHOMA 74136
                                  (918) 493-7700
     DELAWARE          (Name, address, including zip code,      73-1283193
  (State or other        and telephone number, including     (I.R.S. Employer
  jurisdicition of         area code, of Registrant's       Identificaiton No.)
  incorporation or        principal executive offices)
   organization)

                     UNIT CORPORATION AMENDED AND RESTATED'
                               STOCK OPTION PLAN
                           (Full title of the a Plan)

                                 MARK E. SCHELL
                                 GENERAL COUNSEL
                                 UNIT CORPORATION
          1000 KENSINGTON TOWER I, 7130 SOUTH LEWIS, TULSA, OKLAHOMA 74136
                                 (918) 493-7700
 (Name, address, including zip code, and telephone number, including area code,
                               of agent for service)

                                     COPY TO:
                               LYNNWOOD R. MOORE, JR.
                                  CONNER & WINTERS,
                             A PROFESSIONAL CORPORATION
                               3700 FIRST PLACE TOWER
                                 15 EAST 5TH STREET
                             TULSA, OKLAHOMA 74103-4344
                                   (918) 586-5711

                          CALCULATION OF REGISTRATION FEE
================================================================================

    Title of      Amount to      Proposed       Proposed        Amount of
   securities        be          maximum        maximum        registration
     to be       registered      offering       aggregate          fee
   registered        (1)         price per      offering
                                 share (2)      price (2)
--------------------------------------------------------------------------------

     Common       1,200,000       $13.09       $15,708,000       $4,146.91
    Stock (3)       shares

================================================================================

     (1) The indicated number of shares to be registered represents additional
shares issuable under the Unit Corporation Amended and Restated Stock Option
Plan (the "Plan") that are not covered by prior registration statements. Two
prior registration statements, No. 33-19652, filed January 14, 1988, and No. 33-
44103, filed November 19, 1991, cover the initial 1,500,000 shares of common
stock authorized pursuant to the Plan.

     (2) For purposes of determining the registration fee, the maximum per share
and aggregate offering prices have been determined pursuant to Rule 457(h) of
the Securities Act of 1933 on the basis of the average of high and low prices of
the common stock reported on the New York Stock Exchange on June 16, 2000

     (3) Each share of Common Stock is accompanied by a preferred share purchase
right pursuant to the Rights Agreement, dated May 19, 1995, with ChaseMellon
Shareholder Services, L.L.C., as Rights Agent.













































<PAGE>
                     GENERAL INSTRUCTIONS -- PARAGRAPH E.
                    REGISTRATION OF ADDITIONAL SECURITIES

     This Registration Statement on Form S-8 of Unit Corporation relates to the
registration of additional securities of the same class as other securities for
which a registration statement is already effective. On May 3, 2000, the
shareholders of Unit Corporation approved amendments to the Unit Corporation
Amended and Restated Stock Option Plan (the "Plan") that increased by 1,200,000
shares the total number of shares of common stock available for issuance upon
exercise of options granted thereunder. The total number of shares covered by
the Plan, since its inception, is 2,700,000. This Registration Statement
incorporates by reference all prior registration statements filed on Form S-8
with respect to the Plan, including Registration Statements Nos. 33-19652 and
33-44103.

                                    PART I
              INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS

     Information required by Part I of Form S-8 to be contained in the Section
10(a) Prospectus is omitted from this Registration Statement in accordance with
Rule 428 under the Securities Act of 1933, as amended (the "Securities Act"),
and the Note to Part I of Form S-8.

                                   PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

     The following documents previously filed by the
Registrant with the Commission pursuant to the Securities Exchange Act of 1934,
as amended (the "Exchange Act") are hereby incorporated by reference:

          (a) The Registrant's Annual Report on Form 10-K for the year ended
              December 31, 1999;

          (b) The Registrant's Quarterly Report on Form 10-Q for the quarter
              ended March 31, 2000; and

          (c) Description of the Registrant's Common
              Stock contained in the Registrant's Registration Statement on Form
              S-3 (File No. 333-83551) and all amendments or reports filed for
              the purpose of updating such description.

     All other reports and other documents filed by the Registrant pursuant to
Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this
Registration Statement and prior to the termination of this offering shall be
incorporated by reference into this Registration Statement and shall be deemed
to be a part of this Registration Statement from the date of filing of such
reports and documents. Any statement contained herein or in a document
incorporated by reference shall be deemed to be modified or superseded for
purposes of this Registration Statement to the extent that a statement contained
in this Registration Statement or in any other subsequently filed document which
also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Registration Statement.

ITEM 4.  DESCRIPTION OF SECURITIES.

     Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

     The legality of the securities being registered
hereunder will be passed upon by Mark E. Schell, General Counsel and Secretary
of the Registrant. At May 25, 2000, Mr. Schell was the beneficial owner of
73,358 shares of the Registrant's common stock and is a participant in various
employee benefit plans offered to officers and employees of the Registrant.

                                       1

















































<PAGE>
ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Article 4 of the By-Laws of the Registrant provides for indemnification of
any person who is, or is threatened to be made, a witness in or a party to any
proceeding by reason of his position as a director, officer, or employee of the
Registrant, to the extent authorized by applicable law including, but not
limited to, the Delaware General Corporation Law.  Pursuant to Section 145 of
the Delaware General Corporation Law a corporation generally has the power to
indemnify its present and former directors, officers, employees and agents
against expenses and liabilities incurred by them in connection with any suit to
which they are, or are threatened to be made, a party by reason of their serving
in such positions so long as they acted in good faith and in a manner they
reasonably believed to be in, or not opposed to, the best interests of the
corporation, and with respect to any criminal action, they had no reasonable
cause to believe their conduct was unlawful.  With respect to suits by or in the
right of a corporation, however, indemnification is generally limited to
attorney's fees and other expenses and is not available if such person is
adjudged to be liable to the corporation unless the court determines that
indemnification is appropriate.  In addition, a corporation has the power to
purchase and maintain insurance for such persons.  Article 4 of the By-laws also
expressly provides that the power to indemnify authorized thereby is not
exclusive of any rights granted to present and former directors, officers,
employees and agents, under any bylaw, agreement, vote of stockholders or
disinterested directors, or otherwise.

     Article Nine of the Registrant's Charter eliminates in certain
circumstances the monetary liability of our directors for a breach of their
fiduciary duty as directors.  These provisions do not eliminate the liability of
a director

     .    for a breach of the director's duty of loyalty to the Registrant or to
          its stockholders;

     .    for acts or omissions not in good faith or which involve intentional
          misconduct or knowing violation of law;

     .    under Section 174 of the Delaware General Corporation Law (relating to
          the declaration of dividends and purchase or redemption of shares in
          violation of the Delaware General Corporation Law); or

     .    for transactions from which the director derived an improper personal
          benefit.

     The Registrant has purchased directors and officers liability insurance
that would indemnify its  directors and officers against damages arising out of
certain kinds of claims that might be made against them based on their
negligent acts or omissions while acting in their capacity as such.

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

     Not applicable.

ITEM 8. EXHIBITS.

Exhibit
Number         Description of Exhibits
               -----------------------
4.1   --  Form of Common Stock Certificate of Unit Corporation (incorporated
          herein by reference to Exhibit 4.1 to Form S-3 (file No. 333-83551).
4.2   --  Rights Agreement between the Company and Chemical Bank, Rights Agent
          (incorporated herein by reference to Exhibit 1 to the Company's Form
          8-A filed with the SEC on May 23, 1995).
5     --  Opinion of Mark E. Schell, Tulsa, Oklahoma (filed herewith).
15    --  Letter of PricewaterhouseCoopers LLP regarding unaudited interim
          financial information (filed herewith).
23.1  --  Consent of PricewaterhouseCoopers LLP, independent accountants (filed
          herewith).
23.2  --  Consent of Mark E. Schell (included in Exhibit 5).
24.1  --  Power of Attorney (included on the signature page to this registration
          statement).
99    --  Unit Corporation Amended and Restated Stock Option Plan.


                                       2













































<PAGE>
ITEM 9. UNDERTAKINGS.

     (a) The undersigned Registrant hereby undertakes:

          (1) To file, during any period in which offers or sales are being
              made, a post-effective amendment to this registration statement:

              (i)   To include any prospectus required by section 10(a)(3) of
                    the Securities Act;

              (ii)  To reflect in the prospectus any facts or events arising
                    after the effective date of this registration statement (or
                    the most recent post-effective amendment thereof) which,
                    individually or in the aggregate, represent a fundamental
                    change in the information set forth in the registration
                    statement.  Notwithstanding the foregoing, any increase or
                    decrease in the volume of securities offered (if the total
                    dollar value of securities offered would not exceed that
                    which was registered) and any deviation from the low or high
                    end of the estimated maximum offering range may be reflected
                    in the form of a prospectus filed with the Commission
                    pursuant to Rule 424(b) if, in the aggregate, the changes in
                    volume and price represent no more than a 20% change in the
                    maximum aggregate offering price set forth in the
                    "Calculation of Registration Fee" table in the effective
                    registration statement;

              (iii) To include any material information with respect to the plan
                    of distribution not previously disclosed in this
                    registration statement or any material change to such
                    information in this registration statement;

          provided, however, that paragraphs (i) and (ii) above do not apply if
          the information required to be included in a post-effective amendment
          by those paragraphs is contained in periodic reports filed by the
          Registrant pursuant to section 13 or section 15(d) of the Securities
          Exchange Act of 1934 ("Exchange Act") that are incorporated by
          reference in this registration statement.

          (2) That, for the purpose of determining any liability under the
              Securities Act, each such post-effective amendment shall be deemed
              to be a new registration statement relating to the securities
              offered therein, and the offering of such securities at that time
              shall be deemed to be the initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment
              any of the securities being registered which remain unsold at the
              termination of the offering.

     (b)  The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to section 13(a) or section 15(d) of the
Exchange Act that is incorporated by reference in this registration statement
shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.

     (c)  Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the Registrant pursuant to the provisions described under Item 6 above, or
otherwise, the Registrant has been advised that in the opinion of the Securities
and Exchange Commission, such indemnification is against public policy as
expressed in the Securities Act and is, therefore, unenforceable.  In the
event that a claim for indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person
in connection with the securities being registered, the Registrant will, unless,
in the opinion of its counsel, the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.


                                       3












































<PAGE>
                                  SIGNATURES
     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Tulsa, State of Oklahoma, on June 19, 2000.

                                     Unit Corporation

                                     By:  /s/ King P. Kirchner
                                          --------------------
                                          King P. Kirchner,
                                          Chief Executive Officer

     KNOW ALL MEN BY THESE PRESENTS, that each individual whose signature
appears below constitutes and appoints Mark E. Schell and King P. Kirchner, and
each of them, his true and lawful attorneys-in-fact and agents with full power
of substitution, for him and in his name, place and stead, in any and all
capacities, to sign any and all amendments (including post-effective amendments)
to this registration statement, and to file the same, with all exhibits thereto,
and all documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as he
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or his or their substitutes, may lawfully
do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated on June 19, 2000.

                  Name                                Title

          /s/ King P. Kirchner               Chief Executive Officer
          -----------------------------      Chairman of the Board
          King P. Kirchner


          /s/ John G. Nikkel                 President and
          -----------------------------      Director
          John G. Nikkel


          /s/ Earle Lamborn                  Vice President and
          -----------------------------      Director
          Earle Lamborn

                                             Vice President, Treasurer
          /s/ Larry D. Pinkston              and Chief Financial Officer
          -----------------------------      (Principal Financial Officer)
          Larry D. Pinkston

                                             Controller
          /s/ Stanley W. Belitz              (Principal Accounting Officer)
          -----------------------------
          Stanley W. Belitz

                                       4
<PAGE>
          /s/ William B. Morgan              Director
          -----------------------------
          William B. Morgan


          /s/ Don Cook                       Director
          -----------------------------
          Don Cook


          /s/ J. Michael Adcock              Director
          -----------------------------
          J. Michael Adcock


          /s/ John S. Zink                   Director
          -----------------------------
          John S. Zink


          /s/ John H. Williams               Director
          -----------------------------
          John H. Williams


































                                       5

<PAGE>
                              INDEX TO EXHIBITS

Exhibit
Number                     Description of Exhibits
                           -----------------------
4.1   --  Form of Common Stock Certificate of Unit Corporation (incorporated
          herein by reference to Exhibit 4.1 to Form S-3 (file No. 333-83551).
4.2   --  Rights Agreement between the Company and Chemical Bank, Rights Agent
          (incorporated herein by reference to Exhibit 1 to the Company's Form
          8-A filed with the SEC on May 23, 1995).
5     --  Opinion of Mark E. Schell, Tulsa, Oklahoma (filed herewith).
15    --  Letter of PricewaterhouseCoopers LLP regarding unaudited interim
          financial information (filed herewith).
23.1  --  Consent of PricewaterhouseCoopers LLP, independent accountants (filed
          herewith).
23.2  --  Consent of Mark E. Schell (included in Exhibit 5).
24.1  --  Power of Attorney (included on the signature page to this registration
          statement).
99    --  Unit Corporation Amended and Restated Stock Option Plan.






































                                       6
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AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 19, 2000
                                                    REGISTRATION NO. 333-
================================================================================
                        SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8

              REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933

                                UNIT CORPORATION
              (Exact name of registrant as specified in its charter)

                             1000 KENSINGTON TOWER I
                                 7130 SOUTH LEWIS
                              TULSA, OKLAHOMA 74136
                                  (918) 493-7700
     DELAWARE          (Name, address, including zip code,      73-1283193
  (State or other        and telephone number, including     (I.R.S. Employer
  jurisdicition of         area code, of Registrant's       Identificaiton No.)
  incorporation or        principal executive offices)
   organization)

                     UNIT CORPORATION AMENDED AND RESTATED'
                               STOCK OPTION PLAN
                           (Full title of the a Plan)

                                 MARK E. SCHELL
                                 GENERAL COUNSEL
                                 UNIT CORPORATION
          1000 KENSINGTON TOWER I, 7130 SOUTH LEWIS, TULSA, OKLAHOMA 74136
                                 (918) 493-7700
 (Name, address, including zip code, and telephone number, including area code,
                               of agent for service)

                                     COPY TO:
                               LYNNWOOD R. MOORE, JR.
                                  CONNER & WINTERS,
                             A PROFESSIONAL CORPORATION
                               3700 FIRST PLACE TOWER
                                 15 EAST 5TH STREET
                             TULSA, OKLAHOMA 74103-4344
                                   (918) 586-5711

                          CALCULATION OF REGISTRATION FEE
================================================================================

    Title of      Amount to      Proposed       Proposed        Amount of
   securities        be          maximum        maximum        registration
     to be       registered      offering       aggregate          fee
   registered        (1)         price per      offering
                                 share (2)      price (2)
--------------------------------------------------------------------------------

     Common       1,200,000       $13.09       $15,708,000       $4,146.91
    Stock (3)       shares

================================================================================

     (1) The indicated number of shares to be registered represents additional
shares issuable under the Unit Corporation Amended and Restated Stock Option
Plan (the "Plan") that are not covered by prior registration statements. Two
prior registration statements, No. 33-19652, filed January 14, 1988, and No. 33-
44103, filed November 19, 1991, cover the initial 1,500,000 shares of common
stock authorized pursuant to the Plan.

     (2) For purposes of determining the registration fee, the maximum per share
and aggregate offering prices have been determined pursuant to Rule 457(h) of
the Securities Act of 1933 on the basis of the average of high and low prices of
the common stock reported on the New York Stock Exchange on June 16, 2000

     (3) Each share of Common Stock is accompanied by a preferred share purchase
right pursuant to the Rights Agreement, dated May 19, 1995, with ChaseMellon
Shareholder Services, L.L.C., as Rights Agent.
GENERAL INSTRUCTIONS -- PARAGRAPH E.
                    REGISTRATION OF ADDITIONAL SECURITIES

     This Registration Statement on Form S-8 of Unit Corporation relates to the
registration of additional securities of the same class as other securities for
which a registration statement is already effective. On May 3, 2000, the
shareholders of Unit Corporation approved amendments to the Unit Corporation
Amended and Restated Stock Option Plan (the "Plan") that increased by 1,200,000
shares the total number of shares of common stock available for issuance upon
exercise of options granted thereunder. The total number of shares covered by
the Plan, since its inception, is 2,700,000. This Registration Statement
incorporates by reference all prior registration statements filed on Form S-8
with respect to the Plan, including Registration Statements Nos. 33-19652 and
33-44103.

                                    PART I
              INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS

     Information required by Part I of Form S-8 to be contained in the Section
10(a) Prospectus is omitted from this Registration Statement in accordance with
Rule 428 under the Securities Act of 1933, as amended (the "Securities Act"),
and the Note to Part I of Form S-8.

                                   PART II
               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

ITEM 3.  INCORPORATION OF DOCUMENTS BY REFERENCE.

     The following documents previously filed by the
Registrant with the Commission pursuant to the Securities Exchange Act of 1934,
as amended (the "Exchange Act") are hereby incorporated by reference:

          (a) The Registrant's Annual Report on Form 10-K for the year ended
              December 31, 1999;

          (b) The Registrant's Quarterly Report on Form 10-Q for the quarter
              ended March 31, 2000; and

          (c) Description of the Registrant's Common
              Stock contained in the Registrant's Registration Statement on Form
              S-3 (File No. 333-83551) and all amendments or reports filed for
              the purpose of updating such description.

     All other reports and other documents filed by the Registrant pursuant to
Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this
Registration Statement and prior to the termination of this offering shall be
incorporated by reference into this Registration Statement and shall be deemed
to be a part of this Registration Statement from the date of filing of such
reports and documents. Any statement contained herein or in a document
incorporated by reference shall be deemed to be modified or superseded for
purposes of this Registration Statement to the extent that a statement contained
in this Registration Statement or in any other subsequently filed document which
also is or is deemed to be incorporated by reference herein modifies or
supersedes such statement. Any such statement so modified or superseded shall
not be deemed, except as so modified or superseded, to constitute a part of this
Registration Statement.

ITEM 4.  DESCRIPTION OF SECURITIES.

     Not applicable.

ITEM 5.  INTERESTS OF NAMED EXPERTS AND COUNSEL.

     The legality of the securities being registered
hereunder will be passed upon by Mark E. Schell, General Counsel and Secretary
of the Registrant. At May 25, 2000, Mr. Schell was the beneficial owner of
73,358 shares of the Registrant's common stock and is a participant in various
employee benefit plans offered to officers and employees of the Registrant.

                                       1
ITEM 6.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.

     Article 4 of the By-Laws of the Registrant provides for indemnification of
any person who is, or is threatened to be made, a witness in or a party to any
proceeding by reason of his position as a director, officer, or employee of the
Registrant, to the extent authorized by applicable law including, but not
limited to, the Delaware General Corporation Law.  Pursuant to Section 145 of
the Delaware General Corporation Law a corporation generally has the power to
indemnify its present and former directors, officers, employees and agents
against expenses and liabilities incurred by them in connection with any suit to
which they are, or are threatened to be made, a party by reason of their serving
in such positions so long as they acted in good faith and in a manner they
reasonably believed to be in, or not opposed to, the best interests of the
corporation, and with respect to any criminal action, they had no reasonable
cause to believe their conduct was unlawful.  With respect to suits by or in the
right of a corporation, however, indemnification is generally limited to
attorney's fees and other expenses and is not available if such person is
adjudged to be liable to the corporation unless the court determines that
indemnification is appropriate.  In addition, a corporation has the power to
purchase and maintain insurance for such persons.  Article 4 of the By-laws also
expressly provides that the power to indemnify authorized thereby is not
exclusive of any rights granted to present and former directors, officers,
employees and agents, under any bylaw, agreement, vote of stockholders or
disinterested directors, or otherwise.

     Article Nine of the Registrant's Charter eliminates in certain
circumstances the monetary liability of our directors for a breach of their
fiduciary duty as directors.  These provisions do not eliminate the liability of
a director

     .    for a breach of the director's duty of loyalty to the Registrant or to
          its stockholders;

     .    for acts or omissions not in good faith or which involve intentional
          misconduct or knowing violation of law;

     .    under Section 174 of the Delaware General Corporation Law (relating to
          the declaration of dividends and purchase or redemption of shares in
          violation of the Delaware General Corporation Law); or

     .    for transactions from which the director derived an improper personal
          benefit.

     The Registrant has purchased directors and officers liability insurance
that would indemnify its  directors and officers against damages arising out of
certain kinds of claims that might be made against them based on their
negligent acts or omissions while acting in their capacity as such.

ITEM 7.  EXEMPTION FROM REGISTRATION CLAIMED.

     Not applicable.

ITEM 8. EXHIBITS.

Exhibit
Number         Description of Exhibits
               -----------------------
4.1   --  Form of Common Stock Certificate of Unit Corporation (incorporated
          herein by reference to Exhibit 4.1 to Form S-3 (file No. 333-83551).
4.2   --  Rights Agreement between the Company and Chemical Bank, Rights Agent
          (incorporated herein by reference to Exhibit 1 to the Company's Form
          8-A filed with the SEC on May 23, 1995).
5     --  Opinion of Mark E. Schell, Tulsa, Oklahoma (filed herewith).
15    --  Letter of PricewaterhouseCoopers LLP regarding unaudited interim
          financial information (filed herewith).
23.1  --  Consent of PricewaterhouseCoopers LLP, independent accountants (filed
          herewith).
23.2  --  Consent of Mark E. Schell (included in Exhibit 5).
24.1  --  Power of Attorney (included on the signature page to this registration
          statement).
99    --  Unit Corporation Amended and Restated Stock Option Plan.

                                       2
ITEM 9. UNDERTAKINGS.

     (a) The undersigned Registrant hereby undertakes:

          (1) To file, during any period in which offers or sales are being
              made, a post-effective amendment to this registration statement:

              (i)   To include any prospectus required by section 10(a)(3) of
                    the Securities Act;

              (ii)  To reflect in the prospectus any facts or events arising
                    after the effective date of this registration statement (or
                    the most recent post-effective amendment thereof) which,
                    individually or in the aggregate, represent a fundamental
                    change in the information set forth in the registration
                    statement.  Notwithstanding the foregoing, any increase or
                    decrease in the volume of securities offered (if the total
                    dollar value of securities offered would not exceed that
                    which was registered) and any deviation from the low or high
                    end of the estimated maximum offering range may be reflected
                    in the form of a prospectus filed with the Commission
                    pursuant to Rule 424(b) if, in the aggregate, the changes in
                    volume and price represent no more than a 20% change in the
                    maximum aggregate offering price set forth in the
                    "Calculation of Registration Fee" table in the effective
                    registration statement;

              (iii) To include any material information with respect to the plan
                    of distribution not previously disclosed in this
                    registration statement or any material change to such
                    information in this registration statement;

          provided, however, that paragraphs (i) and (ii) above do not apply if
          the information required to be included in a post-effective amendment
          by those paragraphs is contained in periodic reports filed by the
          Registrant pursuant to section 13 or section 15(d) of the Securities
          Exchange Act of 1934 ("Exchange Act") that are incorporated by
          reference in this registration statement.

          (2) That, for the purpose of determining any liability under the
              Securities Act, each such post-effective amendment shall be deemed
              to be a new registration statement relating to the securities
              offered therein, and the offering of such securities at that time
              shall be deemed to be the initial bona fide offering thereof.

          (3) To remove from registration by means of a post-effective amendment
              any of the securities being registered which remain unsold at the
              termination of the offering.

     (b)  The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act, each filing of the
Registrant's annual report pursuant to section 13(a) or section 15(d) of the
Exchange Act that is incorporated by reference in this registration statement
shall be deemed to be a new registration statement relating to the securities
offered therein, and the offering of such securities at that time shall be
deemed to be the initial bona fide offering thereof.

     (c)  Insofar as indemnification for liabilities arising under the
Securities Act may be permitted to directors, officers and controlling persons
of the Registrant pursuant to the provisions described under Item 6 above, or
otherwise, the Registrant has been advised that in the opinion of the Securities
and Exchange Commission, such indemnification is against public policy as
expressed in the Securities Act and is, therefore, unenforceable.  In the
event that a claim for indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action,
suit or proceeding) is asserted by such director, officer or controlling person
in connection with the securities being registered, the Registrant will, unless,
in the opinion of its counsel, the matter has been settled by controlling
precedent, submit to a court of appropriate jurisdiction the question whether
such indemnification by it is against public policy as expressed in the
Securities Act and will be governed by the final adjudication of such issue.

                                       3
SIGNATURES
     Pursuant to the requirements of the Securities Act of 1933, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8 and has duly caused this registration
statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Tulsa, State of Oklahoma, on June 19, 2000.

                                     Unit Corporation

                                     By:  /s/ King P. Kirchner
                                          --------------------
                                          King P. Kirchner,
                                          Chief Executive Officer

     KNOW ALL MEN BY THESE PRESENTS, that each individual whose signature
appears below constitutes and appoints Mark E. Schell and King P. Kirchner, and
each of them, his true and lawful attorneys-in-fact and agents with full power
of substitution, for him and in his name, place and stead, in any and all
capacities, to sign any and all amendments (including post-effective amendments)
to this registration statement, and to file the same, with all exhibits thereto,
and all documents in connection therewith, with the Securities and Exchange
Commission, granting unto said attorneys-in-fact and agents, full power and
authority to do and perform each and every act and thing requisite and necessary
to be done in and about the premises, as fully to all intents and purposes as he
might or could do in person, hereby ratifying and confirming all that said
attorneys-in-fact and agents, or his or their substitutes, may lawfully
do or cause to be done by virtue hereof.

     Pursuant to the requirements of the Securities Act of 1933, this
registration statement has been signed by the following persons in the
capacities indicated on June 19, 2000.

                  Name                                Title

          /s/ King P. Kirchner               Chief Executive Officer
          -----------------------------      Chairman of the Board
          King P. Kirchner

          /s/ John G. Nikkel                 President and
          -----------------------------      Director
          John G. Nikkel

          /s/ Earle Lamborn                  Vice President and
          -----------------------------      Director
          Earle Lamborn

                                             Vice President, Treasurer
          /s/ Larry D. Pinkston              and Chief Financial Officer
          -----------------------------      (Principal Financial Officer)
          Larry D. Pinkston

                                             Controller
          /s/ Stanley W. Belitz              (Principal Accounting Officer)
          -----------------------------
          Stanley W. Belitz

                                       4
/s/ William B. Morgan              Director
          -----------------------------
          William B. Morgan

          /s/ Don Cook                       Director
          -----------------------------
          Don Cook

          /s/ J. Michael Adcock              Director
          -----------------------------
          J. Michael Adcock

          /s/ John S. Zink                   Director
          -----------------------------
          John S. Zink

          /s/ John H. Williams               Director
          -----------------------------
          John H. Williams

                                       5
INDEX TO EXHIBITS

Exhibit
Number                     Description of Exhibits
                           -----------------------
4.1   --  Form of Common Stock Certificate of Unit Corporation (incorporated
          herein by reference to Exhibit 4.1 to Form S-3 (file No. 333-83551).
4.2   --  Rights Agreement between the Company and Chemical Bank, Rights Agent
          (incorporated herein by reference to Exhibit 1 to the Company's Form
          8-A filed with the SEC on May 23, 1995).
5     --  Opinion of Mark E. Schell, Tulsa, Oklahoma (filed herewith).
15    --  Letter of PricewaterhouseCoopers LLP regarding unaudited interim
          financial information (filed herewith).
23.1  --  Consent of PricewaterhouseCoopers LLP, independent accountants (filed
          herewith).
23.2  --  Consent of Mark E. Schell (included in Exhibit 5).
24.1  --  Power of Attorney (included on the signature page to this registration
          statement).
99    --  Unit Corporation Amended and Restated Stock Option Plan.

                                       6