Document:

Exhibit 10.57

                      BOSTON COMMUNICATIONS GROUP, INC.

                     1996 EMPLOYEE STOCK PURCHASE PLAN

                              AMENDMENT NO. 3

                              August 12, 1999

	This Amendment is made to the 1996 Employee Stock Purchase Plan (the
"Plan"), which was approved by the Board of Directors of Boston Communications
Group, Inc. (the "Company") on April 25, 1996, and by its stockholders on April
26, 1996, and amended by the Board of Directors on August 29, 1996 and May 20,
1999.

	Section 2(a) of the Plan which reads as follows:

		"(a) they are regularly employed by the Company or a Designated
Subsidiary for more than 20 hours a week and for more than five months in a
calendar year; and"

		is hereby deleted.

This Amendment shall be effective for the Plan Period commencing September 1,
1999.

Except as herein provided, all other terms and conditions of the Plan remain
unchanged and in full force and effect.

	This Amendment No. 3 to the Plan was adopted by the Board of Directors
of the Company on the 12th day of August, 1999.

						ATTEST:

						/s/ Alan J. Bouffard
						Alan J. Bouffard, ClerkEQUIVA
                                                                 TRADING COMPANY
                                   Shell, Texaco & Saudi Aramco Working Together

FEBRUARY  22,  1999

NOVA  ENERGY  INC
400  E  1st  ST  STE  203
CASPER  WY  82601

ATTN:  DON  BRAUSE

                                        RE:     LEASE PURCHASE AGREEMENT NUMBER:
                                                95871RO1
DEAR  MR.  BRAUSE:

     This  confirms  our  understanding  to  amend  the  referenced agreement to
conform  with  the enclosed Attachment(s)-012.  Please include Attachment(s)-012
effective  FEBRUARY  1,  1999,  with  your  copy  of the referenced agreement as
replacing  Attachment(s)-011.

     Please  verify  this  agreement  by  signing  and returning one of enclosed
originals  to  the  attention  of  Diana  L.  May.

                                    Regards,

                                    /s/SHERYL DAVIS
                                    --------------------------------------------
                                    SHERYL  DAVIS
                                    TRADING  MANAGER  -  ONSHORE

NOVA  ENERGY  INC

         /s/Don  Brause
   --------------------------------
By:      Don  Brause

Date:       3/3/99   (HAND  DATED)
     -----------------------------

:dlm

                 P.O.  Box  4604                  Houston,  TX  77252-4604

<PAGE>
<TABLE>
<CAPTION>
Lease   Lease   PROPERTY NAME                          PAY    TAX   PRICE  PRICE     PURCHASE
Holder  Number  COUNTY, STATE         OPERATOR NAME    TERMS  STAT  BASIS  DIFF.     DECIMAL
<C>     <C>     <S>                   <C>              <C>    <C>   <C>    <C>       <C>
                CAREY FEDERAL #2
       35014    CAMPBELL, WY          NOVA ENERGY INC  DB      A    TWF    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                FULLER FED 4-3-13
       55260    FREMONT,WY            NOVA ENERGY INC  DB      A    QWB    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                WOOD B 14-1
       38550    CROOK, WY             NOVA ENERGY INC  DB      A    WSF    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                NOVA 24-33
       55785    CROOK, WY             NOVA ENERGY INC  DB      A    TWP    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                MILLER 6-11
       50425    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                MILLER 6-15
       50743    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                WHITEHEAD4-11
       50653    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                WHITEHEAD4-13
       50654    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                WHITEHEAD12-1
50659  50660    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                WHITEHEAD12-7
50669  50661    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                CHAMPLIN 69 AMOCO #1
50677  53542    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                CHAMPLIN 69 AMOCO #2
50677  53543    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                CHAMPLIN 69 AMOCO #4
50677  53544    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                18}4WHITEHEAD
       55715    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                MORRIS 24-12
55735  55722    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                SRTI24-12
55714  55725    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                SRTI24-6
55714  55725    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                SRTI24-10
55714  55726    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                24}4MORRIS
55735  55729    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                MORRIS13-8
55734  55730    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                MORRIS14-16DE
55735  55731    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                WHITEHEADB-15
55736  55749    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                WHITEHEAD12-16
       55751    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                MORRIS13-4
50509  55755    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------

                MORRIS14-8
50509  55756    ELBERT, CO            NOVA ENERGY INC  DB      A    ECQ    +1.1000*  1.0000000
       -----    --------------------  ---------------  --      -    ---    --------  ---------
</TABLE>

<PAGE>
EQUIVA  TRADING  COMPANY
PAGE  3
COMPANY  NAME                :   NOVA  ENERGY  INC
ETCO / OTHER CO CONTRACT     :   95871ROI   /
EFFECTIVE  DATE              :   FEBRUARY  1,  1999

                                      NOTES
                                      -----

PAYMENT  TERMS
------------------------
DB   =  BY  ETCO  TO  INDIVIDUL  INTEREST  OWNERS

TAX  STATUS
-------------------------
A     =  ETCO  IS  FIRST  PURCHASER.   ETCO  WILL  COLLECT  AND  REMIT

PRICE  BASIS
-------------------------

TWF  =  EQUIVA  POSTED  PRICE  FOR  WYOMING SWEET (OTHER) DEEMED AT 40.0 GRAVITY
        IN  EFFECT  ON  DATE  OF  DELIVERY
QWB  =  EQUIVA  POSTED PRICE FOR WYOMING SWEET (OTHER) DEEMED AT 40.0 GRAVITY **
WSF  =  EQUIVA  POSTED  PRICE  FOR  WYOMING  SWEET  (OTHER)  **
TWP  =  EQUIVA  POSTED  PRICE  FOR  WYOMING  SWEET  (OTHER) IN EFFECT ON DATE OF
        DELIVERY  FOR  GRAVITY  DELIVERED
ECQ  =  EQUIVA POSTED PRICE FOR COLORADO EASTERN SWEET DEEMED AT 40.0 GRAVITY **

OTHER
---------------------------

*    =  INDICATES  CHANGE  MADE  ON  REFERENCED  EFFECTIVE  DATE.

**   =  FOR  PRICING  PURPOSES,  CRUDE  OIL  SHALL  BE  DEEMED  TO  HAVE  BEEN
        DELIVERED  IN  EQUAL  DAILY  QUANTITIES  DURING  EACH  CALENDAR  MONTH.

<PAGE>

                 TEXACO TRADING AND TRANSPORTATION INC.     1670 Broadway
                                                            Denver CO 80202-4899
                                                            303-861-4475

JULY   8,  1992

NOVA  ENERGY  INC
2055  S  COFFMAN
CASPER,  WY  62604-0000

ATTN:  DON  BRAUSE

                                          RE:   LEASE PURCHASE AGREEMENT NUMBER:
                                                95871ROI
DEAR  MR.  BRAUSE:

This  confirms Texaco Trading and Transportation Inc's ("TTTI") agreement to buy
and  NOVA  ENERGY  INC's ("Seller")  agreement to sell and deliver crude oil
production from the lease(s) described in the enclosed Attachment(s) to carriers
designated  by  TTTI.  Provisions relating to crude type(s), decimal interest(s)
for purchases from each lease, price, payment for crude oil and payment of taxes
are stated in Attachment(s).

This  agreement  will  continue  from  the date indicated on Attachment(s) until
cancellation  by  either  party 30 days after written notice to the other and is
also  subject  to  the  terms and conditions stated in the General Provisions, a
copy  of  which  is  attached  hereto  and  made  a  part  hereof.

Please  verify this agreement by signing and returning the enclosed copy of this
letter  to  the  attention  of  the  undersigned.

                                          Regards,

                                          /s/  W.  R.  Coughlin
                                          -------------------------
                                          W.  R.  Coughlin
                                          TEXACO TRADING AND TRANSPORTATION INC.

NOVA  ENERGY  INC
By:
   -----------------------------
Date:
     ---------------------------

<PAGE>
Texaco  Trading  and  Transportation  Inc.  General  Provisions

     1.     The  specific  agreement  terms  stated  on  page  one  and  on  the
Attachrnent(s)  to  this  agreement  shall  control  over  the following general
provisions  and  altogether  comprise  an integrated contract between Texaco and
Seller.
     2.     The  term  "crude  oil"  as used in this agreement shall include all
marketable  liquid  hydrocarbons.
     3.     All  crude  oil  delivered  to  TTTI  under  this agreement shall be
merchantable  crude  oil.  Title  and risk of loss shall pass to TTTI as soon as
TTTI  receives such crude oil into its custody or that of any carrier designated
by  it.
     4.     TTTI  shall  compute  quantity  and quality and make corrections for
temperature  and  deductions for impurities according to the prevailing API/ASTM
standards  in  effect  at  the  time  and  place  of  delivery  and the laws and
regulations  prescribed  by  the  governmental  authorities having jurisdiction.
     5.     Seller  warrants  that  all crude oil delivered under this agreement
will  be  produced  and  delivered  in  compliance  with all applicable laws and
regulations; and free of any and all claims against title when received by TTTI.
     6.     If  TTTI  makes payment to the individual owners of interests in the
crude oil to be delivered to TTTI under this agreement, Seller agrees to provide
accurate  information  concerning  each  owner's title sufficient to enable TTTI
to  make  such  payments  to  protect, indemnify and hold harmless TTTI from any
claims  resulting  from  errors or omissions in such information. TTTI agrees to
protect,  indemnify  and  hold  harmless  Seller  from any claims resulting from
errors  or  omissions  made  by  TTTI in making  payments in accordance with the
information  provided  by  Seller.
     7.     If payment by TTTI to Seller includes payment for interests owned by
others  in  the crude oil, Seller agrees to pay all persons and entities who may
have  any right, title or interest in and to the crude oil and further agrees to
protect,  indemnify  and  hold  harmless TTTI from any claims for payment by any
such  persons  and  entities.
     8.     Neither  party  shall be liable to the other for failure or delay in
making or  accepting  delivery hereunder to the extent such failure or delay may
be due to  compliance with acts, orders, regulations or requests of any federal,
state or  local  civilian or military authority or any persons purporting to act
therefor;  riots;  strikes;  labor  difficulties;  action  of  the  elements;
transportation difficulties; any subsequently enacted law or regulation having a
material  adverse  economic  impact  upon either party's ability to perform this
agreement;  or  any  other  cause  reasonably  beyond the control of such Party,
whether  similar  or  not.
     9.     This  agreement  shall be governed by the laws of the state in which
the crude  oil  is  produced.
     10.    In addition to the legal rights provided by the terms and provisions
of this document, the Seller may have certain statutory rights under the laws of
the  state  of  production.

<PAGE>
                                    TEXACO  TRADING  AND  TRANSPORTATION  INC.

                                                         ATTACHMENT  1-000
                                                         RECEIPT  LEASES
COMPANY  NAME             :  NOVA ENERGY INC
TTTI / OTHER CO CONTRACT  :  95871RDl  /
EFFECTIVE  DATE           :  JUNE 1, 1992

<TABLE>
<CAPTION>
Lease   Lease   PROPERTY NAME                                 PAY    TAX   PRICE  PRICE       PURCHASE
Holder  Number  COUNTY, STATE                OPERATOR NAME    TERMS  STAT  BASIS  DIFF.       DECIMAL
<C>     <C>     <S>                          <C>              <C>    <C>   <C>    <C>         <C>
------  ------  ---------------------------  ---------------  -----  ---  ------  ----------  ----------
        50425   MILLER 6-11                  NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

        50473   MILLER 6-11                  NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

50509   50509   MORRIS 13-4, 14-8 HDR        NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

        50653   WHITEHEAD 4-11               NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

        50654   WHITEHEAD 4-13               NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

50659   50659   WHITEHEAD 12-1, 12-7 HEADER  NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

        50650   WHITEHEAD 12-1               NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

50659   50661   WHITEHEAD 12-7               NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

        50677   CHAMPLIN 569 AMOCO E-1       NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

55714   55714   SARTI                        NOVA ENERGY INC  DB     A    CN         +O.4000   1.0000000
                ELBERT, CO

        55715   18-4 WHITEHEAD               NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT, CO

55735   55722   24-12 MORRIS                 NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT, CO

55714   55724   24-2 SARTI                   NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT, CO

55714   55725   24-6 SARTI                   NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

55714   55726   24-10 SARTI                  NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT, CO

55735   55729   24-4 MORRIS                  NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT. CO

55734   55730   13-8 MORRIS                  NOVA ENERGY INC  DB     A    CN         +0.4000   1.0000000
                ELBERT, CO

55735   55731   14-16 MORRIS                 NOVA ENERGY INC  DB     A    CN         +0.4000  l.0000000
                ELBERT. CO
</TABLE>
<PAGE>

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