DEMAND NOTE

$150,000.00                                         EAST BRUNSWICK, NEW JERSEY
                                                                AUGUST 3, 1999


FOR VALUE RECEIVED, and intending to be legally bound hereby, THOMAS K.
GRUNDMAN, an individual (the "Borrower") promises to pay to the order of KEY
ENERGY SERVICES, INC., a Maryland corporation (the "Lender"), having an
address of Two Tower Center, 20th Floor, East Brunswick, New Jersey 08816,
the sum of ONE HUNDRED FIFTY  THOUSAND AND 00/100 DOLLARS ($150,000.00),
together with accrued, unpaid interest thereon at the rate hereinafter
provided.  THE BORROWER UNDERSTANDS AND ACKNOWLEDGES THAT IF THE EVENTS
SPECIFIED IN SECTION 3 OF THIS NOTE OCCUR, THE LENDER MAY DEMAND PAYMENT
HEREUNDER AT ANY TIME FOR ANY REASON WHATSOEVER AND THAT UPON SUCH DEMAND,
THE BORROWER SHALL BE IMMEDIATELY OBLIGATED TO PAY THE LENDER THE LESSER OF
(i) THE OUTSTANDING BALANCE HEREUNDER, OR (ii) THE AMOUNT DEMANDED.

A.   TERMS OF NOTE.

     1.   INTEREST. Except as provided in Section A.3 and A.5 of this Note,
          interest on the principal balance outstanding hereunder shall accrue
          at the rate equal to the greater of (i) 6.125% per annum and (ii) the
          federal short term rate as specified in Section 1274(d)(1) of the
          Internal Revenue Code.

     2.   FORGIVENESS OF PRINCIPAL AND INTEREST PAYMENTS.  Payments of
          principal and accrued interest on this Note shall be forgiven by
          the Lender as follows:

          (a)  On each of July 1, 2000, July 1, 2001 and July 1, 2002 BUT ONLY
          if the Borrower's employment relationship with the Lender pursuant to
          that certain Employment Agreement dated as of July 1, 1999 between the
          Borrower and the Lender (the "Employment Agreement") shall not have
          been terminated on or prior to such payment date, Fifty Thousand and
          00/100 Dollars ($50,000) of principal together with any interest on
          the outstanding principal balance under this Note accrued through such
          payment date not previously forgiven shall be forgiven on such payment
          date.

          (b)  In the event that the Borrower's employment relationship with the
          Lender pursuant to the Employment Agreement is terminated (i) by the
          Borrower for a Good



          Reason (as defined in the Employment Agreement) or (ii) by the Company
          other than for Cause (as defined in the Employment Agreement),
          including termination for Disability (as defined in the Employment
          Agreement) or death, then the entire amount of the principal balance
          outstanding under this Note together with any interest on the
          outstanding principal balance under this Note accrued through the
          date of such termination not previously forgiven shall be forgiven
          on the date of such termination.

     3.   DEMAND PAYMENT.  In the event the Borrower's employment relationship
          with the Lender pursuant to the Employment Agreement is terminated (i)
          by the Borrower for any reason other than a Good Reason or (ii) by the
          Lender for Cause, then all or a portion of the amount of the principal
          balance outstanding under this Note together with any  interest on the
          outstanding principal balance under this Note accrued  through the
          date of such termination not previously forgiven (the "Demand Amount")
          shall become due and payable immediately upon demand by the Lender.
          From and after such termination date, interest on any unpaid portion
          of the Demand Amount shall accrue at the rate specified in Section A.1
          of this Note until demand is made therefor after which time interest
          shall accrue at the rate specified in Section A.5 of this Note.

     4.   DEMAND PAYMENT TERMS.  All payments made hereunder shall be in
          immediately available funds and in lawful currency of the United
          States of America.  All payments made hereunder shall be made to the
          Lender at the address set forth in this Note or at such other address
          as the Lender shall notify the Borrower of in writing.

     5.   DEFAULT RATE.  Following a demand for payment hereunder, interest will
          be assessed on that portion of the Demand Amount for which demand was
          made, at a rate which is two percent (2%) higher than the rate
          otherwise charged hereunder (the "Default Rate") provided that at no
          time shall the Default Rate exceed the highest rate of interest
          allowed by law.  Such Default Rate of interest shall also be charged
          on the amounts owed by the Borrower to the Lender pursuant to any
          judgments entered in favor of Lender pursuant to this Note.

     6.   PREPAYMENT.  This Note may be prepaid in whole or in part without
          prepayment penalty or premium.  All payments received on this Note may
          be applied in such order as the Lender in its sole discretion shall
          determine.

B.   DEFINITIONS.  As used herein, the term "Note" means this Demand Note and
     all amendments and modifications hereto in effect from time to time.

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C.   REMEDIES.

     1.   ACCELERATION OF LIABILITIES; RIGHTS OF LENDER.  Upon and following a
          demand for payment hereunder and the failure of the Borrower to pay
          the amount demanded, at the Lender's option, this Note shall
          immediately become due and payable in full, all without protest,
          presentment, demand or further notice of any kind to the Borrower, all
          of which are expressly waived.  Upon and following a demand hereunder
          and failure of the Borrower to pay the amount demanded, the Lender, at
          its option, may exercise any and all rights and remedies it has under
          this Note and under applicable law, including, without limitation, the
          right to charge and collect interest on the principal portion of the
          balance hereunder at the Default Rate.  Upon and following a demand
          hereunder and failure of the Borrower to pay the amount demanded, the
          Lender may proceed to protect and enforce the Lender's rights under
          this Note and/or under applicable law by action at law, in equity, or
          other appropriate proceeding.

     2.   CONFESSION OF JUDGMENT.

          Upon and following a demand for payment hereunder and the failure of
          the Borrower to pay the amount demanded within thirty (30) days of
          demand, the Borrower hereby authorizes and empowers any attorney of
          any court of record or the prothonotary or clerk of any county in the
          Commonwealth of New Jersey, or in any jurisdiction where permitted by
          law or the clerk of any United States District Court, to appear for
          the Borrower in any and all actions which may be brought hereunder and
          enter and confess judgment against the Borrower or any of them in
          favor of the Lender for such sums as are due or may become due
          hereunder, together with costs of suit and actual collection costs
          including, without limitation, reasonable attorneys' fees equal to
          five percent (5%) of the amounts then due and owing but in no event
          less than $3000 with or without declaration.  If a copy of this Note
          verified by affidavit of any officer of the Lender shall have been
          filed in such action, it shall not be necessary to file the original
          thereof as a warrant of attorney, any practice or usage to the
          contrary notwithstanding.

     3.   BANKRUPTCY EVENT.  In the event Borrower commences any bankruptcy,
          reorganization, debt arrangement, or other case or proceeding under
          the United States Bankruptcy Code or under any similar foreign,
          federal, state, or local statute, or any dissolution or liquidation
          proceeding, or makes a general assignment for the benefit of
          creditors, or takes any action for the purpose of effecting the
          foregoing or if any bankruptcy, reorganization, debt arrangement, or
          other case or proceeding under the United States Bankruptcy Code or
          under any similar foreign, federal, state or local statute, or any
          dissolution or liquidation proceeding is involuntarily commenced
          against or in respect of Borrower or an order for relief is entered in
          any such proceeding (collectively, a "Bankruptcy Event") the Lender
          shall be deemed to have

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          made a demand for payment of all amounts outstanding hereunder
          immediately prior to such Bankruptcy Event.

     4.   REMEDIES CUMULATIVE; NO WAIVER.  The rights, powers and remedies
          hereunder are cumulative and concurrent, and are not exclusive of any
          other right, power or remedy available to the Lender.  No failure or
          delay on the part of the Lender in the exercise of any right, power or
          remedy shall operate as a waiver thereof, nor shall any single or
          partial exercise of any right, power or remedy preclude any other or
          further exercise thereof, or the exercise of any other right, power or
          remedy.

D.   MISCELLANEOUS.

     1.   WAIVER.  The Borrower (a) waives presentment, protest, notice of
          protest, and notice of dishonor of this Note; and (b) consents to any
          and all extensions of time, renewals, waivers, or modifications that
          may be granted by the Lender with respect to the payment or other
          provisions of this Note.

     2.   NOTICES.  Notices and communications under this Note shall be in
          writing and shall be given by either (i) hand-delivery, (ii) first
          class mail (postage prepaid), or (iii) reliable overnight commercial
          courier (charges prepaid) to the addresses listed in this Note.
          Notice by overnight courier shall be deemed to have been given and
          received on the date scheduled for delivery.  Notice by mail shall be
          deemed to have been given and received three (3) calendar days after
          the date first deposited in the United States Mail.  Notice by
          hand-delivery shall be deemed to have been given and received upon
          delivery.  A party may change its address by giving written notice to
          the other party as specified herein.

     3.   COSTS AND EXPENSES.  The Borrower shall promptly  reimburse Lender for
          all reasonable costs and expenses which the Lender may incur after a
          demand for payment in connection with the interpretation, perfection,
          protection of collateral, monitoring, administration and enforcement
          of this Note, the collection of all amounts due under this Note, and
          all amendments, modifications, consents and/or waivers, if any, to
          this Note. The Borrower's reimbursement obligations under this
          Paragraph shall survive any termination of this Note.

     4.   GOVERNING LAW.  This Note shall be construed in accordance with and
          governed by the substantive laws of the Commonwealth of New Jersey
          without reference to conflict of laws principles.

     5.   INTEGRATION; AMENDMENT.  This Note constitutes the sole agreement of
          the parties with respect to the subject matter hereof and thereof and
          supersedes all oral negotiations and prior writings with respect to
          the subject matter hereof and thereof.  No amendment of this Note, and
          no waiver of any one or more of the provisions hereof shall be
          effective unless set forth in writing and signed by the parties
          hereto.

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     6.   SUCCESSORS AND ASSIGNS.  This Note (a) shall be binding upon the
          Borrower and the Lender and, where applicable, their respective heirs,
          executors, administrators, successors and permitted assigns, and (b)
          shall inure to the benefit of the Borrower and the Lender and, where
          applicable, their respective heirs, executors, administrators,
          successors and permitted assigns; provided, however, that the Borrower
          may not assign its rights or obligations hereunder or any interest
          herein without the prior written consent of the Lender, and any such
          assignment or attempted assignment by the Borrower shall be void and
          of no effect with respect to the Lender.

     7.   SEVERABILITY.  The illegality, unenforceability or inconsistency of
          any provision of this Note or any instrument or agreement required
          hereunder shall not in any way affect or impair the legality,
          enforceability or consistency of the remaining provisions of this Note
          or any instrument or agreement required hereunder.

     8.   JUDICIAL PROCEEDINGS; WAIVERS.  THE BORROWER AND THE LENDER
          ACKNOWLEDGE AND AGREE THAT (a) ANY SUIT, ACTION OR PROCEEDING, WHETHER
          CLAIM OR COUNTERCLAIM, BROUGHT OR INSTITUTED BY THE LENDER OR THE
          BORROWER OR ANY SUCCESSOR OR ASSIGN OF THE LENDER OR THE BORROWER, ON
          OR WITH RESPECT TO THIS NOTE OR THE DEALINGS OF THE PARTIES WITH
          RESPECT HERETO, OR THERETO, SHALL BE TRIED ONLY BY A COURT AND NOT BY
          A JURY AND EACH PARTY WAIVES THE RIGHT TO TRIAL BY JURY; (b) EACH
          WAIVES ANY RIGHT IT MAY HAVE TO CLAIM OR RECOVER, IN ANY SUCH SUIT,
          ACTION OR PROCEEDING, ANY SPECIAL, EXEMPLARY, PUNITIVE OR
          CONSEQUENTIAL DAMAGES OR ANY DAMAGES OTHER THAN, OR IN ADDITION TO,
          ACTUAL DAMAGES; AND (c) THIS SECTION D.8 IS A SPECIFIC AND MATERIAL
          ASPECT OF THIS NOTE AND THE LENDER WOULD NOT EXTEND CREDIT TO THE
          BORROWER IF THE WAIVERS SET FORTH IN THIS SECTION WERE NOT A PART OF
          THIS NOTE.


IN WITNESS WHEREOF, the Borrower has duly executed and delivered to the Lender
this Note as of the day and year first above written.


                                       /s/ Thomas K. Grundman
                                       ------------------------------
                                       THOMAS K. GRUNDMAN