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                                                                     EXHIBIT 4.3


                            Form of Right Certificate

Certificate No. R-                                                      Rights
                                                                   -----

         NOT EXERCISABLE AFTER JUNE 30, 2008 OR EARLIER IF REDEMPTION OR
         EXCHANGE OCCURS. THE RIGHTS ARE SUBJECT TO REDEMPTION AT $.01
         PER RIGHT AND TO EXCHANGE ON THE TERMS SET FORTH IN THE RIGHTS
         AGREEMENT. UNDER CERTAIN CIRCUMSTANCES, RIGHTS BENEFICIALLY
         OWNED BY ACQUIRING PERSONS (AS DEFINED IN SECTION 1 OF THE
         RIGHTS AGREEMENT) OR ANY SUBSEQUENT HOLDER OF SUCH RIGHTS MAY
         BECOME NULL AND VOID.

                                Right Certificate
                             PARKER DRILLING COMPANY


         This certifies that _____________________________, or registered
assigns, is the registered owner of the number of Rights set forth above, each
of which entitles the owner thereof, subject to the terms, provisions and
conditions of the Rights Agreement, dated as of July 14, 1998 (the "Rights
Agreement"), between PARKER DRILLING COMPANY, a Delaware corporation (the
"Company"), and NORWEST BANK MINNESOTA, N.A. (the "Rights Agent"), to purchase
from the Company at any time after the Distribution Date (as such term is
defined in the Rights Agreement) and prior to 5:00 p.m., Eastern time, on June
30, 2008, at the Corporate Trust Office of the Rights Agent (or at the office of
its successor as Rights Agent), one one-thousandth (1/1000) of a fully paid
non-assessable share of Junior Participating Preferred Stock, $1.00 par value
per share (the "Preferred Shares"), of the Company, at a purchase price of
$30.00 per one one-thousandth (1/1000) of a Preferred Share (the "Purchase
Price"), upon presentation and surrender of this Right Certificate with the Form
of Election to Purchase duly executed. The number of Rights evidenced by this
Right Certificate (and the number of one one-thousandths of a Preferred Share
which may be purchased upon exercise hereof) set forth above, and the Purchase
Price set forth above, are the number and Purchase Price as of ____, 1998 based
on the Preferred Shares as constituted at such date. As provided in the Rights
Agreement, the Purchase Price and the number of one one-thousandths of a
Preferred Share which may be purchased upon the exercise of the Rights evidenced
by this Right Certificate are subject to modification and adjustment upon that
happening of certain events.
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         This Right Certificate is subject to all of the terms, provisions and
conditions of the Rights Agreement, which terms, provisions and conditions are
hereby incorporated herein by reference and made a part hereof and to which
Rights Agreement reference is hereby made for a full description of the rights,
limitations of rights, obligations, duties and immunities hereunder of the
Rights Agent, the Company and the holders of the Right Certificates. Copies of
the Rights Agreement are on file at the principal executive offices of the
Company and the Corporate Trust Office of the Rights Agent.

         This Right Certificate, with or without other Right Certificates, upon
surrender at the Corporate Trust Office of the Rights Agent, may be exchanged
for another Right Certificate or Right Certificates of like tenor and date
evidencing Rights entitling the holder to purchase a like aggregate number of
Preferred Shares as the Rights evidenced by the Right Certificate or Right
Certificates surrendered shall have entitled such holder to purchase. If this
Right Certificate shall be exercised in part, the holder shall be entitled to
receive upon surrender hereof another Right Certificate or Right Certificates
for the number of whole Rights not exercised.

         Subject to the provisions of the Rights Agreement, the Rights evidenced
by this Certificate (i) may be redeemed by the Company at a redemption price of
$.01 per Right or (ii) may be exchanged by the Company in whole or in part for
Preferred Shares or shares of the Company's common stock, $0.16 2/3 par value
per share.

         No fractional Preferred Shares will be issued upon the exercise of any
Right or Rights evidenced hereby (other than fractions which are integral
multiples of one one-thousandth of a Preferred Share, which may, at the election
of the Company, be evidenced by depository receipts), but in lieu thereof a cash
payment will be made, as provided in the Rights Agreement.

         No holder of this Right Certificate shall be entitled to vote or
receive dividends or be deemed for any purpose the holder of the Preferred
Shares or of any other securities of the Company which may at any time be
issuable on the exercise hereof, nor shall anything contained in the Rights
Agreement or herein be construed to confer upon the holder hereof, as such, any
of the rights of a stockholder of the Company or any right to vote for the
election of directors or upon any matter submitted to stockholders at any
meeting thereof, or to give or withhold consent to any corporate action, or to
receive notice of meetings or other actions affecting stockholders (except as
provided in the Rights Agreement), or to receive dividends or subscription
rights, or otherwise, until the Right or Rights evidenced by this Right
Certificate shall have been exercised as provided in the Rights Agreement.

         This Right Certificate shall not be entitled to any benefit under the
Rights Agreement or be valid or obligatory for any purpose until it shall have
been authenticated by the Right Agent.


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         WITNESS the facsimile signatures of the proper officers of the Company
and its corporate seal.

Dated as of                    ,     .
            -------------------  ----

                                                   PARKER DRILLING COMPANY



                                                   By:
                                                      ------------------------
                                                         James J. Davis
                                                         Senior Vice President


Authentication:

This is one of the Right Certificates referred to in the within-mentioned Rights
Agreement.


Norwest Bank Minnesota, N.A., as Rights Agent



By:
   ---------------------------------------- 
        Authorized Signature


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                   [Form of Reverse Side of Right Certificate]

                               FORM OF ASSIGNMENT

             (To be executed by the registered holder if such holder
                   desires to transfer the Right Certificate)


         FOR VALUE RECEIVED, ___________________________ hereby sells, assigns
and transfers unto ___________________________________________________________
______________________________________________________________________________
                  (Please print name and address of transferee)

this Right Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint ____________________Attorney,
to transfer the within Right Certificate on the books of the within-named 
Company, with full power of substitution.

Dated as of                    ,     .
            -------------------  ----

                                                       -----------------------
                                                               Signature

Signature Guaranteed:

         Signatures must be guaranteed by an eligible guarantor institution
(a bank, stockbroker, savings and loan association or credit union with
membership in an approved signature guarantee medallion program) pursuant to
Rule 17Ad-15 of the Securities Exchange Act of 1934.

- ------------------------------------------------------------------------------

                    [To be executed if statement is correct]

         The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).


                                                       -----------------------
                                                               Signature

- ------------------------------------------------------------------------------



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            [Form of Reverse Side of Right Certificate -- continued]

                          FORM OF ELECTION TO PURCHASE
                      (To be executed if holder desires to
                         exercise the Right Certificate)

TO PARKER DRILLING COMPANY

         The undersigned hereby irrevocably elects to exercise _____________
Rights represented by this Right Certificate to purchase the Preferred Shares
(or other securities) issuable upon the exercise of such Rights and requests
that certificates for such Preferred Shares (or other securities) be issued in
the name of:

Please insert social security
or other identifying number:

- ----------------------------

- -------------------------------------------------------------------------------
                        (Please print name and address)

- -------------------------------------------------------------------------------

If such number of Rights shall not be all the Rights evidenced by this Right
Certificate, a new Right Certificate for the balance remaining of such Rights
shall be registered in the name of and delivered to:

Please insert social security
or other identifying number:



- ----------------------------

- -------------------------------------------------------------------------------
                        (Please print name and address)

Dated as of                    ,     .
            -------------------  ----

                                                       -----------------------
                                                               Signature



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            [Form of Reverse Side of Right Certificate -- continued]

Signature Guaranteed:

         Signatures must be guaranteed by an eligible guarantor institution 
(a bank, stockbroker, savings and loan association or credit union with
membership in an approved signature guarantee medallion program) pursuant to
Rule 17Ad-15 of the Securities Exchange Act of 1934.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

                    [To be executed if statement is correct]

         The undersigned hereby certifies that the Rights evidenced by this
Right Certificate are not beneficially owned by an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement).

                                                       -----------------------
                                                               Signature

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

                                     NOTICE

         The signature in the foregoing Form of Assignment or Form of Election
to Purchase must conform to the name as written upon the face of this Right
Certificate in every particular, without alteration or enlargement or any change
whatsoever.

         In the event the certification set forth above in the Form of
Assignment or the Form of Election to Purchase, as the case may be, is not
completed, the Company and the Rights Agent will deem the beneficial owner of
the Rights evidenced by this Right Certificate to be an Acquiring Person or an
Affiliate or Associate thereof (as defined in the Rights Agreement) and such
Assignment or Election to Purchase will not be honored.


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