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): August 6, 1997



                                Mar Ventures Inc.
              ----------------------------------------------------
             (Exact name of registrant as specified in its charter)



             Delaware                    0-20879             95-4580642
    ---------------------------       ---------------     ------------------
   (State or other jurisdiction      (Commission File       (IRS Employer
         of incorporation)                Number)         Identification No.)



                1675 Broadway, Suite 1150, Denver, Colorado 80202
                -------------------------------------------------
               (Address of principal executive offices) (Zip Code)


        Registrant's telephone number, including area code (303) 825-3748
                                                            -------------



<PAGE>

Item 1. Changes in Control of Registrant.
        --------------------------------

     The Registrant, on August 6, 1997, purchased all the ownership interests of
PYR Energy,  LLC ("PYR") in exchange for  4,000,000  shares of the  Registrant's
$.001  par  value  common  stock  (the  "Common  Stock").  As a  result  of this
transaction,  PYR, which is an oil and gas  exploration  company,  became wholly
owned by the  Registrant  and the members of PYR  obtained  43.7  percent of the
Registrant's  outstanding  Common Stock. The members of PYR immediately prior to
this transaction consisted of D. Scott Singdahlsen,  Dirk McDermott,  Gregory B.
Barnett, Tommye Barnett, Interactive Earth Sciences Corporation, and PinOak Inc.

     The Registrant  agreed,  in connection  with the  transaction  with PYR, to
appoint each of Mr. Singdahlsen, Mr. Barnett and Keith F. Carney as directors of
the  Company.  The three  persons  who served on the Board of  Directors  of the
Registrant  prior to the  consummation of the transaction with PYR have resigned
so that the Board  now  consists  solely of  Messrs.  Singdahlsen,  Barnett  and
Carney.


Item 2. Acquisition or Disposition of Assets
        ------------------------------------

     The Registrant  acquired all the ownership  interests of PYR as a result of
the transactions  described above in "Item 1. Changes in Control of Registrant".
Any necessary financial  statements  concerning the Registrant's  acquisition of
PYR will be filed by amendment on or before October 20, 1997.


Item 4.  Changes in Registrant's Certifying Accountant
         ---------------------------------------------

     On August 13, 1997, the Registrant engaged Wheeler Wasoff,  P.C. of Denver,
Colorado as the  Registrant's  independent  accountant to replace Farber & Hass,
which was  dismissed  on that date.  This  decision was approved by the Board of
Directors of the Registrant.  The Board of Directors  believes it is in the best
interests of the Registrant for its accountant to be located in the same city as
the Registrant's principal executive offices.

     The  independent  auditor's  report of Farber & Hass  with  respect  to the
Registrant's  (i) balance  sheet as of August 31, 1996,  and (ii)  statements of
operations, shareholders' equity and cash flows for the period July 2, 1996 (the
date of the  Registrant's  inception) to August 31, 1996, was modified as to the
uncertainty  about the  Registrant's  ability to  continue  as a going  concern.
Farber & Hass's prior  report did not  otherwise  contain an adverse  opinion or
disclaimer of opinion, and it was not qualified or modified as to audit scope or
accounting principals.  There have not been any disagreements with Farber & Hass
on any  matter of  accounting  principals  or  practices,  financial  statements
disclosure or auditing scope or procedure. The Registrant has requested Farber &
Hass to furnish the  Registrant  with a letter  addressed to the  Securities And
Exchange  Commission  (the "  Commission")  stating  whether it agrees  with the
statements  made in this Item 4. The Registrant has further  requested  Farber &
Hass to provide that letter as promptly as possible so that the  Registrant  can
file the letter with the Commission within ten business days after the filing of
this report on Form 8-K.


                                       2

<PAGE>




Item 5. Other Events.
        ------------

     Press Release.  The press release of the Registrant  dated August 19, 1997,
which is filed as an exhibit hereto, is incorporated herein by reference.



Item 7. Financial Statements And Exhibits.
        ---------------------------------

         (c) Exhibits.

                                  Exhibit Index
                                  -------------

Exhibit
Number            Description
------            -----------

99.1              Press release dated August 19, 1997.



                                    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.


Date:  August 19, 1997                      MAR VENTURES INC.



                                            By: /s/  D. Scott Singdahlsen
                                                --------------------------------
                                                D. Scott Singdahlsen
                                                President





                                       3
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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): August 6, 1997

                                Mar Ventures Inc.
              ----------------------------------------------------
             (Exact name of registrant as specified in its charter)

             Delaware                    0-20879             95-4580642
    ---------------------------       ---------------     ------------------
   (State or other jurisdiction      (Commission File       (IRS Employer
         of incorporation)                Number)         Identification No.)

                1675 Broadway, Suite 1150, Denver, Colorado 80202
                -------------------------------------------------
               (Address of principal executive offices) (Zip Code)

        Registrant's telephone number, including area code (303) 825-3748
                                                            -------------
Item 1. Changes in Control of Registrant.
        --------------------------------

     The Registrant, on August 6, 1997, purchased all the ownership interests of
PYR Energy,  LLC ("PYR") in exchange for  4,000,000  shares of the  Registrant's
$.001  par  value  common  stock  (the  "Common  Stock").  As a  result  of this
transaction,  PYR, which is an oil and gas  exploration  company,  became wholly
owned by the  Registrant  and the members of PYR  obtained  43.7  percent of the
Registrant's  outstanding  Common Stock. The members of PYR immediately prior to
this transaction consisted of D. Scott Singdahlsen,  Dirk McDermott,  Gregory B.
Barnett, Tommye Barnett, Interactive Earth Sciences Corporation, and PinOak Inc.

     The Registrant  agreed,  in connection  with the  transaction  with PYR, to
appoint each of Mr. Singdahlsen, Mr. Barnett and Keith F. Carney as directors of
the  Company.  The three  persons  who served on the Board of  Directors  of the
Registrant  prior to the  consummation of the transaction with PYR have resigned
so that the Board  now  consists  solely of  Messrs.  Singdahlsen,  Barnett  and
Carney.

Item 2. Acquisition or Disposition of Assets
        ------------------------------------

     The Registrant  acquired all the ownership  interests of PYR as a result of
the transactions  described above in "Item 1. Changes in Control of Registrant".
Any necessary financial  statements  concerning the Registrant's  acquisition of
PYR will be filed by amendment on or before October 20, 1997.

Item 4.  Changes in Registrant's Certifying Accountant
         ---------------------------------------------

     On August 13, 1997, the Registrant engaged Wheeler Wasoff,  P.C. of Denver,
Colorado as the  Registrant's  independent  accountant to replace Farber & Hass,
which was  dismissed  on that date.  This  decision was approved by the Board of
Directors of the Registrant.  The Board of Directors  believes it is in the best
interests of the Registrant for its accountant to be located in the same city as
the Registrant's principal executive offices.

     The  independent  auditor's  report of Farber & Hass  with  respect  to the
Registrant's  (i) balance  sheet as of August 31, 1996,  and (ii)  statements of
operations, shareholders' equity and cash flows for the period July 2, 1996 (the
date of the  Registrant's  inception) to August 31, 1996, was modified as to the
uncertainty  about the  Registrant's  ability to  continue  as a going  concern.
Farber & Hass's prior  report did not  otherwise  contain an adverse  opinion or
disclaimer of opinion, and it was not qualified or modified as to audit scope or
accounting principals.  There have not been any disagreements with Farber & Hass
on any  matter of  accounting  principals  or  practices,  financial  statements
disclosure or auditing scope or procedure. The Registrant has requested Farber &
Hass to furnish the  Registrant  with a letter  addressed to the  Securities And
Exchange  Commission  (the "  Commission")  stating  whether it agrees  with the
statements  made in this Item 4. The Registrant has further  requested  Farber &
Hass to provide that letter as promptly as possible so that the  Registrant  can
file the letter with the Commission within ten business days after the filing of
this report on Form 8-K.

                                       2
Item 5. Other Events.
        ------------

     Press Release.  The press release of the Registrant  dated August 19, 1997,
which is filed as an exhibit hereto, is incorporated herein by reference.

Item 7. Financial Statements And Exhibits.
        ---------------------------------

         (c) Exhibits.

                                  Exhibit Index
                                  -------------

Exhibit
Number            Description
------            -----------

99.1              Press release dated August 19, 1997.

                                    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.

Date:  August 19, 1997                      MAR VENTURES INC.

                                            By: /s/  D. Scott Singdahlsen
                                                --------------------------------
                                                D. Scott Singdahlsen
                                                President

                                       3