MIRENCO, INC.
                             STOCK OPTION AGREEMENT

     A  NONQUALIFIED  STOCK OPTION for a total of  Two-hundred  Eighty  Thousand
(280,000)  Shares  of  Common  Stock  ("Shares"),  of  Mirenco,  Inc.,  an  Iowa
corporation,  ("Company"),  is hereby granted to Darrell Jolley ("Participant"),
on the date and at the price determined as provided herein,  and in all respects
subject to the terms,  definitions and provisions of this Agreement and the 1999
Common  Stock  Compensation  Plan  adopted  by the  Company  on the  31st day of
December, 1999 ("Plan"), which is incorporated by reference herein.  Capitalized
terms used but not defined herein, have the same meaning herein as in the Plan.

          1.   OPTION PRICE.  The option price is Five Dollars  ($5.00) for each
               Share.

          2.   METHOD OF EXERCISING THE OPTION.

               (a)  DATE  OF  VESTING.   Subject  to  other   restrictions   and
          limitations  in the Plan,  this Option  plan will  continue to vest as
          long as the undersigned is employed by Mirenco:

                         January 1, 2000           20,000
                         March 31, 2000            20,000
                         June 30, 2000             20,000
                         September 30, 2000        20,000
                         January 1, 2001           20,000
                         March 31, 2001            20,000
                         June 30, 2001             20,000
                         September 30, 2001        20,000
                         January 1, 2002           15,000
                         March 31, 2002            15,000
                         June 30, 2002             15,000
                         September 30, 2002        15,000
                         January 1, 2003           15,000
                         March 31, 2003            15,000
                         June 30, 2003             15,000
                         September 30, 2003        15,000



                  (b) MINIMUM  SHARES.  This Option may be exercised in whole or
         in part,  but not for less than Five  Hundred  (500)  Shares at any one
         time,  unless fewer than Five Hundred (500) Shares are then purchasable
         under the Option and the Option is then being  exercised as to all such
         Shares.

                  (c) WRITTEN  NOTICE.  This Option may be exercised only by the
         Participant,   Participant's   legal   representative,    Participant's
         beneficiary,  or Participant's  guardian, as provided in the Plan. This
         Option  may be  exercised  by giving  written  notice  to the  Company,
         addressed to the attention of the Secretary of the Company. Such notice
         shall   (i)  be  signed  by  the   Participant,   Participant's   legal
         representative,  beneficiary,  or guardian  entitled  to  exercise  the
         Option and, if being exercised by any person other than Participant, be
         accompanied by proof, satisfactory to the Secretary for the Company, of
         the  right of such  person  to  exercise  the  Option;  (ii)  state the
         person(s) in whose name the stock certificates for such Shares is to be
         registered, and the street address and the tax identification or social
         security number of such  person(s);  (iii) specify the number of Shares
         then elected to be purchased with respect to the Option and the date of
         exercise thereof,  which date shall be at least five (5) days after the
         giving of such notice; (iv) contain such representations and agreements
         as may be satisfactory  to the Secretary for the Company,  and unless a
         Registration Statement under the Securities Act of 1933, as amended, is
         in  effect  with  respect  to the  Shares  to be  purchased,  contain a
         representation  of  Participant,  Participant's  legal  representative,
         Participant's  beneficiary,  or Participant's guardian, that the Shares
         are being acquired for investment, and that the Shares will not be sold
         or  otherwise  transferred  except in  compliance  with all  applicable
         securities  laws and  regulations  and all  requirements  of any  stock
         exchange  or market  upon which  such  Shares  are then  listed  and/or
         traded;  and (v) be  accompanied by payment in full of the Option Price
         of the Shares to be purchased.

                  (d) PAYMENT OF OPTION PRICE. The Option Price upon exercise of
         this Option  shall be payable to the Company in full (i) in cash or its
         equivalent (acceptable cash equivalents shall be determined at the sole
         discretion of the Company);  (ii) at the sole discretion of the Company
         and upon such terms and conditions as the Company shall approve, by any
         other  method of payment  as  provided  for in the Plan,  or (iii) by a
         combination of (i) and (ii).

                  (e) REGISTRATION  RIGHTS. As promptly as practicable after the
         Company's  listing on any NASDAQ or other  exchange,  the Company shall
         cause the shares underlying this Option to be registered for trading by
         use of S-8 or other  registration  statement  filed with the Securities
         and Exchange Commission.

                  (f) CERTIFICATES.  As promptly as practicable after receipt of
         such  written  notice,  required  representations,   payment,  and  the
         satisfaction  of  any  other  requirement  or  provision  of  the  Plan
         applicable  hereto,  the Company shall cause to be issued and delivered
         to the Participant,  Participant's legal representative,  Participant's
         beneficiary, or Participant's guardian,  certificates for the Shares so
         purchased,  registered  in the name as specified in the written  notice
         and endorsed with any appropriate restrictive legends.



     3.   TRANSFERABILITY OF OPTION.

                  (a) IN  GENERAl.  This  Option  may not be sold,  transferred,
         pledged, assigned or otherwise alienated or hypothecated, other than by
         will  or by the  laws  of  descent  and  distribution.  Subject  to the
         applicable  provisions of the Plan,  Participant may designate a person
         or persons to receive in the event of Participant's  death, this Option
         or any Shares  pursuant  thereto,  to which  Participant  would then be
         entitled.  Such  designation  shall be made upon a form provided by the
         Company  substantially in the form of Exhibit A attached hereto,  which
         may be revoked or amended in writing by the Participant.

                  (b)  ABSENCE  OF  BENEFICIARY.  In the  event of the  death of
         Participant  and in the  absence of a  beneficiary  validly  designated
         under the Plan who is living at the time of  Participant's  death,  the
         Company  shall deliver this Option and any Shares  pursuant  thereto to
         the executor or  administrator  of the estate of Participant,  or if no
         such executor or administrator  has been appointed (to the knowledge of
         the Company),  the Company, in its discretion,  may deliver this Option
         and any  Shares  pursuant  thereto  to the spouse or to any one or more
         dependents or relatives of Participant,  or if no spouse,  dependent or
         relative  is known to the  Company,  then to such  other  person as the
         Company may designate.

                  (c)  CREDITOR  STATUS.  This  Option  and any  Shares  payable
         pursuant  thereto  (1)  may  not  be  taken,   either   voluntarily  or
         involuntarily,   for  the  satisfaction  of  the  debts  of,  or  other
         obligations  or claims  against,  the  Participant,  the  Participant's
         beneficiary or any other person, including claims for alimony, support,
         separate maintenance and claims in bankruptcy proceedings and (2) shall
         not be  subject  in  any  manner  to  anticipation,  sale,  alienation,
         transfer,   assignment,   pledge,   encumbrance,   charge,  attachment,
         garnishment,   levy  or   execution   by   Participant,   Participant's
         beneficiary,  the  creditors of either,  and any other  person.  In the
         event of a violation or attempted  violation of any of the restrictions
         and/or  provisions  of  this  subsection,  the  Company  has  the  sole
         discretion  and  authority  to  terminate  this  Option   (without  any
         compensation  therefore) by written notice to Participant  and it shall
         thereupon become null and void.

     4. ADDITIONAL RESTRICTIONS ON EXERCISE. This Option may not be exercised if
the issuance of shares upon such  exercise  would  constitute a violation of any
applicable  federal or state  securities or other law or regulation,  including,
without  limitation,  the  Internal  Revenue Code of 1986,  as amended,  and the
Securities  Act of 1933,  as  amended.  As a condition  to the  exercise of this
Option,  the Company may require the person  exercising  this Option to make any
representation  or warranty to the Company as may be required by applicable  law
or  regulation  or other  restriction  or  agreement  binding  upon or otherwise
affecting the Shares of the Company.



     5.  BINDING  EFFECT.  This  Agreement  shall be binding on and inure to the
benefit of the Participant's beneficiaries and legal representatives

     6. DATE OF GRANT. This Option was granted by the Company on the 31st day of
December, 1999.



                                                      MIRENCO, INC.



                                                  By: /s/ Dwayne Fosseen
                                                      ------------------
                                                     Dwayne Fosseen, CEO






                                 ACKNOWLEDGMENT

     Participant  acknowledges receipt of a copy of the Plan, a copy of which is
attached hereto,  and represents that the Participant is familiar with the terms
and provisions thereof,  and hereby accepts this Option subject to all the terms
and  provisions  thereof.  Participant  hereby  agrees to  accepting as binding,
conclusive and final all decisions or  interpretations of the Committee relating
to the administration of the Plan.

Dated this 6th day of June, 2000.

                                              /s/ DR Jolley
                                              -------------
                                             Participant (please sign)


                                              Darrell Jolley
                                              -----------------------
                                             Participant (please type or print)


                                              4224 Fair Oaks
                                              -----------------
                                              Street Address


                                              Grapevine     TX       76051
                                              ----------------------------
                                              City          State    Zip Code


                                              ###-##-####
                                              -----------
                                              Social Security Number



                                    EXHIBIT A
                           DESIGNATION OF BENEFICIARY

         Pursuant to the provisions of the 1999 Common Stock  Compensation  Plan
(the  "Plan")  of  Mirenco,  Inc.  (the  "Company").  I hereby  revoke all prior
designations  (if  any)  of  primary  and  secondary  beneficiaries  and  hereby
designate the following persons as my primary and secondary  beneficiaries of my
Option for 280,000 Shares of the Company which was granted to me on the 31st day
of December, 1999 pursuant to the Plan.

PRIMARY BENEFICIARY(IES)
- ------------------------

Name:        Cynthia Y. Jolley        Relationship:  Wife      Percentage:100%
Address:     4224 Fair Oaks, Grapevine, TX 76051

Name:        _____N/A_______________  Relationship:  _______   Percentage: _____
Address:     ___________________________________________________________________

SECONDARY BENEFICIARY(IES)
- --------------------------

Name:        Daniel Jolley            Relationship:  son       Percentage:  50%
Address:     4224 Fair Oaks

Name:        Caitlyn Jolley           Relationship:  daughter  Percentage:  50%
Address:     4224 Fair Oaks

Name:          N/A                    Relationship:  ________  Percentage: ____%
Address:     ___________________________________________________________________

     I RESERVE THE RIGHT TO REVOKE OR CHANGE ANY BENEFICIARY  DESIGNATION AT ANY
TIME AND WITHOUT NOTICE TO CURRENT OR PRIOR BENEFICIARIES.

Darrell Jolley                                            /s/ DR Jolley
- --------------                                            -------------
Participant Name (Please Print)                           Participant Signature

6/6/00
- ------
Date of Designation