Key Energy Group, Inc.
                          Two Tower Center, 20th Floor
                           East Brunswick, New Jersey



                                November 13, 1998

James J. Byerlotzer
125 Grant
San Antonio, Texas 78209


                              EMPLOYMENT AGREEMENT
                               (this "Agreement")

Dear Jim:

Key  Energy  Group,  Inc.,  a Maryland  corporation  (the  "Company"),  with its
principal  offices at the address set forth above,  and you, an individual  with
your home address set forth above, agree as follows:

1.  Employment;  Term. The Company agrees to employ you, and you agree to devote
your  full time and best  efforts  to serve as the  Company  as  Executive  Vice
President of Permian Basin Operations.  Your employment will commence  effective
as of the date  hereof  and  continue  until this  Agreement  is  terminated  in
accordance with Section 3 hereof.

2. Salary;  Expenses;  Benefits.  From the date hereof  until this  Agreement is
terminated in accordance with Section 3 hereof, the Company will pay a salary to
you at the annual  rate of  $170,000  per year (the "Base  Salary"),  payable in
substantially  equal  installments  in accordance  with the  Company's  existing
payroll practices,  but no less frequently than monthly.  You will be reimbursed
by the Company for reasonable travel,  lodging, meal and other expenses incurred
by you in connection with performing your services  hereunder in accordance with
the Company's  policies from time to time in effect.  From the date hereof until
this  Agreement is terminated in accordance  with Section 3 hereof,  you will be
entitled to such  benefits,  including,  without  limitation,  group medical and
dental , accident and disability  insurance,  retirement  plans and supplemental
and excess retirement  benefits as the Company may provide from time to time for
its similarly situated management personnel.


3. Termination.

                                                  
(a)  Termination  by Company  for  Cause.  The  Company  shall have the right to
     terminate your employment under this Agreement for Cause (as defined below)
     at any  time  without  obligation  to  make  any  further  payments  to you
     hereunder other than any salary or expense  reimbursement  payments owed to
     you under Section 2 hereof through the date of termination. As used in this
     Agreement, the term "Cause" shall mean the willful and continued failure by
     you to  substantially  perform your duties  hereunder  (other than any such
     wilful or continued  failure resulting from your incapacity due to physical
     or mental illness or physical  injury),  or the willful  engaging by you in
     misconduct  which is  materially  injurious to the Company,  monetarily  or
     otherwise,  or  your  conviction  of a  felony  by  a  court  of  competent
     jurisdiction.

(b)  Termination  by  Company  upon  Disability  or Death.  If you die or become
     totally and  permanently  disabled  so that you are unable to perform  your
     obligations  hereunder by reasons  involving  physical or mental illness or
     physical  injury,  then the Company shall have the right to terminate  your
     employment  under this Agreement,  effective on the date of such disability
     or death,  without obligation to make any further payments to you hereunder
     other than any salary or expense  reimbursement  payments owed to you under
     Section 2 hereof through the date of termination.

(c)  Termination  by  Employee.  You  shall  have the  right to  terminate  your
     employment  under this  Agreement  for any reason by giving at least thirty
     (30)  days'  written  notice to the  Company,  with the  Company  having no
     obligation  to make any further  payments to you  hereunder  other than any
     salary or expense reimbursement payments owed to you under Section 2 hereof
     through the date of termination.

(d)  Termination  by  Company  other than for Cause,  Disability  or Death.  The
     Company shall have the right,  upon at least ten (10) days' written notice,
     to terminate your employment under this Agreement for any reason other than
     for Cause,  disability or death at any time without  obligation to make any
     further  payments  to you  hereunder  other  than (i) any salary or expense
     reimbursement  payments owed to you under Section 2 hereof through the date
     of termination and (ii) the payments provided for in Section 3(e) hereof.


    
(e)  Severance   Compensation.   In  the  event  your  employment  hereunder  is
     terminated by the Company other than for Cause,  death or disability within
     six (6) months  following a Change of Control (as defined below),  you will
     be entitled to severance  compensation in the amount of $170,000 payable in
     twelve (12) equal  monthly  installments  on the last day of each  calendar
     month  commencing  on the last  day of the  calendar  month  on  which  the
     termination  date  occurs.  In  the  event  your  employment  hereunder  is
     otherwise  terminated  by the  Company  other  than  for  Cause,  death  or
     disability, you will be entitled to severance compensation in the amount of
     $85,000  payable in six (6) equal monthly  installments  on the last day of
     each calendar  month  commencing  on the last day of the calendar  month on
     which the  termination  date occurs.  As used in this  Agreement,  the term
     "Change  of  Control"   shall  mean  any  one  or  more  of  the  following
     occurrences:  (i) an event or series of events by which any person or group
     of persons shall,  as a result of a tender or exchange  offer,  open market
     purchase,   privately   negotiated  purchase,   merger,   consolidation  or
     otherwise,  have become the  beneficial  owner  (within the meaning of Rule
     13d-3 under the Securities  Exchange Act, as amended) of 50% or more of the
     combined voting power of the then outstanding  capital stock of the Company
     entitled to vote for the election of directors  ("Voting Stock"),  (ii) the
     Company is merged  with or into  another  corporation  with the effect that
     immediately  after such  transaction  the  stockholders of the Company hold
     less than a majority of the combined  voting power of the then  outstanding
     Voting Stock of the person surviving such transaction,  or (iii) the direct
     or indirect, sale, lease, exchange or other transfer to any person or group
     of persons of all or substantially all of the assets of the Company.

4. Limitation on  Competition.  From the date hereof until the later to occur of
(i) the date this  Agreement is terminated  in accordance  with Section 3 hereof
and (ii) the date of the last  severance  payment made to you under Section 3(e)
hereof, you shall not, directly or indirectly, without the prior written consent
of the  Company,  participate  or engage  in,  whether as a  director,  officer,
employee, advisor, consultant, stockholder, partner, joint venturer, owner or in
any other capacity,  any business engaged in the business of furnishing oilfield
services (a "Competing  Enterprise")  anywhere in the continental United States,
Argentina or any other  geographic  region in which the Company  (including  its
subsidiaries and affiliates)  conducts its business from time to time; provided,
however,  that you shall not be deemed to be  participating  or  engaging in any
such business  solely by virtue of your  ownership of not more than five percent
of any class of stock or other securities which is publicly traded on a national
securities  exchange or in a recognized  over-the-counter  market; and, for that
same period of time,  you shall not,  directly  or  indirectly,  solicit,  raid,
entice  or  otherwise  induce  any  employee  of  the  Company  or  any  of  its
subsidiaries to be employed by a Competing Enterprise.

If this  Agreement  correctly  sets forth your  understanding  of the  agreement
between the Company and you,  please  indicate your agreement  hereto by signing
this Agreement in the space for that purpose below.

KEY ENERGY GROUP, INC.

By:                                                           
Name:                                                         
Title:                                                        


ACCEPTED AND AGREED
as of the date first written above:



James J. Byerlotzer