Document:

<PAGE>

                                                                   Exhibit 10.10

                    Master Confidential Disclosure Agreement

                                  by and among

                        Schlumberger Technologies, Inc.,

                      Schlumberger Technology Corporation,

                                 Schlumberger BV

                                       and

                                  NPTest, Inc.

                                _______ __, 2002

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                    Page
                                                                                    ----
<S>                                                                                  <C>
  ARTICLE I DEFINITIONS ........................................................     1
  ---------------------
     Section 1.1     Ancillary Agreements.......................................     1
     -----------     --------------------
     Section 1.2     Confidential Information...................................     1
     -----------     ------------------------
     Section 1.3     Confidentiality Period.....................................     2
     -----------     ----------------------
     Section 1.4     Disclosing Party...........................................     2
     -----------     ----------------
     Section 1.5     Highly Confidential Information............................     2
     -----------     -------------------------------
     Section 1.6     Master Separation and Sale Agreement.......................     2
     -----------     ------------------------------------
     Section 1.7     Person.....................................................     2
     -----------     ------
     Section 1.8     Prior Transfers ...........................................     2
     -----------     ---------------
     Section 1.9     Receiving Party............................................     2
     -----------     ---------------
     Section 1.10    Separation Date............................................     3
     ------------    ---------------
     Section 1.11    Subsidiary.................................................     3
     ------------    ----------
     Section 1.12    Third Party................................................     3
     ------------    -----------
     Section 1.13    Transaction Agreements.....................................     3
     ------------    ----------------------

  ARTICLE II CONFIDENTIALITY ...................................................     3
  --------------------------
     Section 2.1     Confidentiality And Non-Use Obligations....................     3
     -----------     ---------------------------------------
     Section 2.2     Disclosure To Sublicensees.................................     3
     -----------     --------------------------
     Section 2.3     Contract Manufacturers.....................................     3
     -----------     ----------------------
     Section 2.4     Residuals..................................................     3
     -----------     ---------
     Section 2.5     Compelled Disclosure.......................................     4
     -----------     --------------------
     Section 2.6     No Restriction On Disclosing Party.........................     4
     -----------     ----------------------------------
     Section 2.7     No Restriction On Reassignment.............................     4
     -----------     ------------------------------
     Section 2.8     Third Party Restrictions...................................     4
     -----------     ------------------------
  ARTICLE III WARRANTY DISCLAIMER ..............................................     4
  -------------------------------

  ARTICLE IV CONFIDENTIALITY OF AGREEMENT ......................................     4
  ---------------------------------------

  ARTICLE V TERM AND TERMINATION ...............................................     5
  ------------------------------

     Section 5.1     Term.......................................................     5
     -----------     ----
     Section 5.2     Survival...................................................     5
     -----------     --------
  ARTICLE VI DISPUTE RESOLUTION ................................................     5
  -----------------------------

  ARTICLE VII MISCELLANEOUS PROVISIONS .........................................     5
  ------------------------------------
</TABLE>

<PAGE>

<TABLE>
<S>                                                                               <C>
     Section 7.1     Export Restrictions........................................    5
     -----------     -------------------
     Section 7.2     No Implied Licenses........................................    6
     -----------     -------------------
     Section 7.3     Infringement Suits.........................................    6
     -----------     ------------------
     Section 7.4     No Other Obligations.......................................    6
     -----------     --------------------
     Section 7.5     Entire Agreement...........................................    6
     -----------     ----------------
     Section 7.6     Governing Law..............................................    6
     -----------     --------------
     Section 7.7     Descriptive Headings.......................................    6
     -----------     --------------------
     Section 7.8     Notices....................................................    6
     -----------     -------
     Section 7.9     Binding Effect; Assignment.................................    7
     -----------     --------------------------
     Section 7.10    Severability...............................................    8
     ------------    ------------
     Section 7.11    Failure Or Indulgence Not Waiver; Remedies Cumulative. ....    8
     ------------    -----------------------------------------------------
     Section 7.12    Amendment..................................................    8
     ------------    ---------
     Section 7.13    Counterparts...............................................    8
     ------------    ------------
     Section 7.14    Authority..................................................    8
     ------------    ---------
</TABLE>

                                       ii

<PAGE>

                    MASTER CONFIDENTIAL DISCLOSURE AGREEMENT

     This Master Confidential Disclosure Agreement (the "Agreement") is
effective as of _______ __, 2002 (the "Effective Date"), by and among
Schlumberger Technologies, Inc., a Delaware corporation ("STI"), Schlumberger
Technology Corporation, a Texas corporation ("STC"), Schlumberger BV, a company
organized and existing under the laws of the Netherlands ("SBV" and, together
with STI, and STC, "Schlumberger"), and NPTest, Inc. ("NPT"), a Delaware
corporation.

                                    RECITALS

     WHEREAS, STI and SBV collectively own all of the currently issued and
outstanding common stock of NPT;

     WHEREAS, NPT is engaged in the NPT Business (as such term is defined in the
Master Separation and Sale Agreement);

     WHEREAS, the parties have entered into a Master Separation and Sale
Agreement in connection with the Separation, as there described; and

     WHEREAS, as provided in the Master Separation and Sale Agreement, the
parties desire to set forth certain agreements regarding Confidential
Information (as defined below).

     NOW, THEREFORE, in consideration of the foregoing and the covenants and
agreements set forth below, the parties hereto agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

         For the purpose of this Agreement the following capitalized terms are
defined in this Article I and shall have the meaning specified herein:

     Section 1.1  Ancillary Agreements. "Ancillary Agreements" has the meaning
set forth in the Master Separation and Sale Agreement.

     Section 1.2  Confidential Information."Confidential Information" means
business information, technical data, know-how and other information which is
not otherwise in the public domain and of which the owner actively undertakes to
restrict or control the disclosure to Third Parties in a manner reasonably
intended to maintain its confidentiality, and which (i) the Disclosing Party
disclosed to the Receiving Party or the Receiving Party had access to on or
before the Separation Date, (ii) is the subject of any Transaction Agreement and
known to or in the possession of the Receiving Party as of the Separation Date
or (iii) is disclosed to the Receiving Party pursuant to any Transaction
Agreement for a period of one year after the Effective Date. Confidential
Information may include information relating to, by way of example, research,
products, services, customers, markets, software, developments, inventions,

<PAGE>

processes, designs, drawings, engineering, marketing or finances, and may be in
writing, disclosed orally or learned by inspection of computer programming code,
equipment or facilities.

          (b)     Confidential Information of Third Parties that is known to,
in the possession of or acquired by a Receiving Party pursuant to a relationship
with the Disclosing Party shall be deemed the Disclosing Party's Confidential
Information for purposes herein.

          (c)     Notwithstanding the foregoing provisions of this Section 1.2,
Confidential Information shall exclude information that: (i) was in the
Receiving Party's possession before receipt from the Disclosing Party and
obtained from a source other than the Disclosing Party and other than through
the prior relationship of the Disclosing Party and the Receiving Party before
the Separation Date; (ii) is or becomes a matter of public knowledge through no
fault of the Receiving Party; (iii) is rightfully received by the Receiving
Party from a Third Party without a duty of confidentiality; (iv) is disclosed by
the Disclosing Party to a Third Party without a duty of confidentiality on the
Third Party; (v) is independently developed by the Receiving Party; or (vi) is
disclosed by the Receiving Party with the Disclosing Party's prior written
approval.

     Section 1.3  Confidentiality Period. "Confidentiality Period" means, (i)
with respect to Confidential Information that is not Highly Confidential
Information, five years, and (ii) with respect to Highly Confidential
Information, in perpetuity, after either (a) the Separation Date with respect to
Confidential Information of the Disclosing Party that is known to or in the
possession of the Receiving Party as of the Separation Date or (b) the date of
disclosure with respect to Confidential Information that is disclosed by the
Disclosing Party to the Receiving Party after the Separation Date.

     Section 1.4  Disclosing Party. "Disclosing Party" means the party owning or
disclosing the relevant Confidential Information.

     Section 1.5  Highly Confidential Information. "Highly Confidential
Information" means Confidential Information that is computer source code for
products that are commercially released or for which substantial steps have been
taken to commercialization.

     Section 1.6  Master Separation and Sale Agreement. "Master Separation and
Sale Agreement" means that certain Master Separation and Sale Agreement by and
among STI, STC, SBV and NPT.

     Section 1.7  Person. "Person" means an individual, a partnership, a
corporation, a limited liability company, an association, a joint stock company,
a trust, a joint venture, an unincorporated organization and a governmental
entity or any department, agency or political subdivision thereof.

     Section 1.8  Prior Transfers. "Prior Transfers" has the meaning set forth
in the Master Separation and Sale Agreement.

     Section 1.9  Receiving Party. "Receiving Party" means the non-owning party
or recipient of the relevant Confidential Information.

                                        2

<PAGE>

          Section 1.10  Separation Date. "Separation Date" has the meaning set
forth in the Master Separation and Sale Agreement.

          Section 1.11  Subsidiary. "Subsidiary" has the meaning set forth in
the Master Separation and Sale Agreement.

          Section 1.12  Third Party. "Third Party" means a Person other than
Schlumberger and its Subsidiaries and NPT and its Subsidiaries.

          Section 1.13  Transaction Agreements. "Transaction Agreements" mean
the Master Separation and Sale Agreement, the Ancillary Agreements and the
agreements executed in connection with the Prior Transfers.

                                   ARTICLE II

                                 CONFIDENTIALITY

          Section 2.1   Confidentiality And Non-Use Obligations. During the
Confidentiality Period, the Receiving Party shall (i) protect the Confidential
Information of the Disclosing Party by using at least the same degree of care,
but no less than a reasonable degree of care, to prevent the unauthorized use,
dissemination, or publication of the Confidential Information as Receiving Party
uses to protect its own confidential information of a like nature, (ii) not use
such Confidential Information in violation of any use restriction in any
Transaction Agreement, and (iii) not disclose such Confidential Information to
any Third Party, except as expressly permitted under this Agreement, or in the
Transaction Agreements or in any other agreements entered into between the
parties in writing, without prior written consent of the Disclosing Party.

          Section 2.2   Disclosure To Sublicensees. The Receiving Party has the
right to disclose to its sublicensees permitted under a Transaction Agreement
portions of Confidential Information as reasonably necessary in the exercise of
the Receiving Party's sublicense rights under such Transaction Agreement,
subject to the sublicensee's agreement in writing to confidentiality and non-use
terms at least as protective of the Disclosing Party as the provisions of this
Agreement.

          Section 2.3   Contract Manufacturers. The Receiving Party has the
right to disclose to its contract manufacturers permitted under any Transaction
Agreement portions of the Confidential Information as reasonably necessary in
the exercise of the Receiving Party's "have made" rights under any Transaction
Agreement, subject to the contract manufacturer's agreement in writing to
confidentiality and non-use terms at least as protective of the Disclosing Party
as the provisions of this Agreement.

          Section 2.4   Residuals. Notwithstanding any other provision of this
Agreement, the Receiving Party shall be free, and the Disclosing Party hereby
grants to the Receiving Party, except as otherwise provided in this Section 2.4,
the right, to use or exploit for any purpose and without restriction the
Residuals resulting from access to or work with the Confidential Information of
the Disclosing Party. "Residuals" means information retained in the unaided
memory of an individual who has had access to Confidential Information. The
Receiving Party shall have no obligation to pay royalties for any use of
Residuals. However, this Section 2.4

                                        3

<PAGE>

does not grant the Receiving Party any rights under any patents or copyrights
(including derivative works) of the Disclosing Party.

          Section 2.5   Compelled Disclosure. If the Receiving Party or any of
its respective Subsidiaries believes that it will be compelled by a court or
other authority to disclose Confidential Information of the Disclosing Party, it
shall (i) give the Disclosing Party prompt written notice so that the Disclosing
Party may take steps to oppose such disclosure, and (ii) cooperate with the
Disclosing Party in its attempts, if any, to legally oppose such disclosure. If
the Receiving Party complies with the above, it shall not be prohibited from
complying with such requirement to disclose, but shall take all reasonable steps
to make such disclosure subject to a suitable protective order or otherwise
prevent unrestricted or public disclosure.

          Section 2.6   No Restriction On Disclosing Party. Nothing in this
Agreement shall restrict the Disclosing Party from using, disclosing, or
disseminating its own Confidential Information in any way.

          Section 2.7   No Restriction On Reassignment. This Agreement shall not
restrict reassignment of the Receiving Party's employees.

          Section 2.8   Third Party Restrictions. Nothing in the Agreement
supersedes any restriction imposed by Third Parties on their Confidential
Information, and there is no obligation on the Disclosing Party to conform Third
Party agreements to the terms of this Agreement.

                                  ARTICLE III

                               WARRANTY DISCLAIMER

     EACH PARTY ACKNOWLEDGES AND AGREES THAT ALL CONFIDENTIAL INFORMATION IS
PROVIDED ON AN "AS IS, WHERE IS" BASIS AND THAT NEITHER PARTY NOR ANY OF ITS
SUBSIDIARIES HAS MADE OR WILL MAKE ANY WARRANTY WHATSOEVER, EXPRESS, IMPLIED OR
STATUTORY, INCLUDING, WITHOUT LIMITATION, ANY WARRANTIES CONCERNING THE QUALITY
OR COMPLETENESS OF THE INFORMATION, ITS SUITABILITY FOR USE, AND ANY IMPLIED
WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE,
ENFORCEABILITY OR NON- INFRINGEMENT. EACH PARTY ACKNOWLEDGES THAT IT IS SOLELY
RESPONSIBLE FOR ANY RESULTS OBTAINED FROM THE USE OF THE INFORMATION DISCLOSED
HEREUNDER AND EACH PARTY HEREBY IRREVOCABLY WAIVES ANY CLAIMS IT MAY HAVE OR
LATER MAY HAVE AGAINST THE OTHER IN CONNECTION WITH SUCH RESULTS.

                                   ARTICLE IV

                          CONFIDENTIALITY OF AGREEMENT

     Each party agrees that the terms and conditions of the Transaction
Agreements marked as confidential shall be treated as Confidential Information
and that neither party will disclose such terms or conditions to any Third Party
without the prior written consent of the other party,

                                       4

<PAGE>

provided, however, that each party may disclose such terms and conditions of
such agreements marked as confidential:

          (a)     as required by any court or other governmental body (subject
to Section 2.5);

          (b)     as otherwise required by law (subject to Section 2.5);

          (c)     in confidence, to legal counsel of the parties, accountants,
and other professional advisors;

          (d)     in confidence to banks, investors and other financing sources
and their advisors;

          (e)     in connection with the enforcement of this Agreement or rights
under this Agreement; or

          (f)     in confidence, in connection with an actual or prospective
merger or acquisition or similar transaction.

                                   ARTICLE V

                              TERM AND TERMINATION

     Section 5.1  Term. This Agreement shall remain in full force and effect
unless and until terminated by the mutual written agreement of the parties.

     Section 5.2  Survival. Articles 2 (with respect to Confidential Information
acquired or disclosed prior to the date of termination), 3, 4, 6 and 7 shall
survive any termination of this Agreement.

                                   ARTICLE VI

                               DISPUTE RESOLUTION

     The terms of the provisions entitled "Dispute Resolution" in the Master
Separation and Sale Agreement shall apply to any claims or controversies or
disputes arising hereunder among the parties to this Agreement.

                                  ARTICLE VII

                            MISCELLANEOUS PROVISIONS

     Section 7.1  Export Restrictions. Both parties shall adhere to all
applicable laws, regulations and rules relating to the export of technical data
where such laws, regulations or rules are applicable to the Information in
question, and shall not export or reexport any technical data included in the
Information, any products received from Disclosing Party, or the direct product

                                       5

<PAGE>

of such technical data, to any proscribed country listed in such applicable
laws, regulations and rules unless properly authorized.

     Section 7.2  No Implied Licenses. Nothing contained in this Agreement shall
be construed as conferring any rights by implication, estoppel or otherwise,
under any intellectual property right, other than the rights expressly granted
in this Agreement with respect to Confidential Information and those licenses
expressly granted in certain of the other Ancillary Agreements. Neither party is
required hereunder to furnish or disclose to the other any technical or other
information.

     Section 7.3  Infringement Suits. Neither party shall have any obligation
hereunder to institute any action or suit against Third Parties for
misappropriation of any of its Confidential Information or to defend any action
or suit brought by a Third Party that alleges infringement of any intellectual
property rights by the Receiving Party's authorized use of the Disclosing
Party's Confidential Information.

     Section 7.4  No Other Obligations. NEITHER PARTY ASSUMES ANY
RESPONSIBILITIES OR OBLIGATIONS WHATSOEVER, OTHER THAN THE RESPONSIBILITIES AND
OBLIGATIONS EXPRESSLY SET FORTH IN THIS AGREEMENT OR A SEPARATE WRITTEN
AGREEMENT BETWEEN THE PARTIES.

     Section 7.5  Entire Agreement. This Agreement, the Master Separation and
Sale Agreement, the other Ancillary Agreements, and the Exhibits and Schedules
referenced or attached hereto and thereto, and the agreements executed in
connection with the Prior Transfers constitute the entire agreement between the
parties with respect to the subject matter hereof and thereof and shall
supersede all prior written and oral and all contemporaneous oral agreements and
understandings with respect to the subject matter hereof and thereof.

     Section 7.6  Governing Law. This Agreement shall be construed in accordance
with and all Disputes hereunder shall be governed by the laws of the State of
Delaware, excluding its conflict of law rules and the United Nations Convention
on Contracts for the International Sale of Goods.

     Section 7.7  Descriptive Headings. The headings contained in this
Agreement, in any Exhibit hereto and in the table of contents to this Agreement
are for reference purposes only and shall not affect in any way the meaning or
interpretation of this Agreement. Any capitalized term used in any Exhibit but
not otherwise defined therein, shall have the meaning assigned to such term in
this Agreement. When a reference is made in this Agreement to an Article or a
Section or an Exhibit, such reference shall be to an Article or Section of, or
an Exhibit to, this Agreement unless otherwise indicated.

     Section 7.8  Notices. Notices, offers, requests or other communications
required or permitted to be given by either party pursuant to the terms of this
Agreement shall be given in writing to the respective parties to the following
addresses:

                                        6

<PAGE>

          if to STI:

                      Schlumberger Technologies, Inc.
                      [To Come]
                      Attention:   [__________]
                      Telephone:   [__________]
                      Facsimile:   [__________]

          if to SBV:

                      Schlumberger BV
                      [To Come]
                      Attention:   [__________]
                      Telephone:   [__________]
                      Facsimile:   [__________]

          if to STC:

                      Schlumberger Technology Corporation
                      [To Come]
                      Attention:   [__________]
                      Telephone:   [__________]
                      Facsimile:   [__________]

          if to NPT:

                      NPTest, Inc.
                      [To Come]
                      Attention:   General Counsel
                      Telephone:   [__________]
                      Facsimile:   [__________]

or to such other address as the party to whom notice is given may have
previously furnished to the other in writing as provided herein. Any notice
involving non-performance, termination, or renewal shall be sent by hand
delivery, recognized overnight courier or, within the United States, may also be
sent via certified mail, return receipt requested. All other notices may also be
sent by fax, confirmed by first class mail. All notices shall be deemed to have
been given and received on the earlier of actual delivery or three days from the
date of postmark.

     Section 7.9  Binding Effect; Assignment. No party may, directly or
indirectly, in whole or in part, whether by operation of law or otherwise,
assign or transfer this Agreement, without the other parties' prior written
consent, and any attempted assignment, transfer or delegation without such prior
written consent shall be voidable at the sole option of such other parties.
Notwithstanding the foregoing, each party (or its permitted successive assignees
or transferees hereunder) may assign or transfer this Agreement as a whole
without consent to an entity that succeeds to all or substantially all of the
business or assets of such party. Without

                                        7

<PAGE>

limiting the foregoing, this Agreement will be binding upon and inure to the
benefit of the parties and their permitted successors and assigns.

     Section 7.10  Severability. If any term or other provision of this
Agreement or the Exhibits attached hereto is determined by a court,
administrative agency or arbitrator to be invalid, illegal or incapable of being
enforced by any rule of law or public policy, all other conditions and
provisions of this Agreement shall nevertheless remain in full force and effect
so long as the economic or legal substance of the transactions contemplated
hereby is not affected in any manner materially adverse to either party. Upon
such determination that any term or other provision is invalid, illegal or
incapable of being enforced, the parties hereto shall negotiate in good faith to
modify this Agreement so as to effect the original intent of the parties as
closely as possible in an acceptable manner to the end that transactions
contemplated hereby are fulfilled to the fullest extent possible.

     Section 7.11  Failure Or Indulgence Not Waiver; Remedies Cumulative. No
failure or delay on the part of either party hereto in the exercise of any right
hereunder shall impair such right or be construed to be a waiver of, or
acquiescence in, any breach of any representation, warranty or agreement herein,
nor shall any single or partial exercise of any such right preclude other or
further exercise thereof or of any other right.

     Section 7.12  Amendment. No change or amendment will be made to this
Agreement except by an instrument in writing signed on behalf of each of the
parties to such agreement.

     Section 7.13  Counterparts. This Agreement, including the Ancillary
Agreements and the Exhibits and Schedules hereto and thereto and the other
documents referred to herein or therein, may be executed in counterparts, each
of which shall be deemed to be an original but all of which shall constitute one
and the same agreement.

     Section 7.14  Authority. Each of the parties hereto represents to the other
that (a) it has the corporate or other requisite power and authority to execute,
deliver and perform this Agreement, (b) the execution, delivery and performance
of this Agreement by it have been duly authorized by all necessary corporate or
other action, (c) it has duly and validly executed and delivered this Agreement,
and (d) this Agreement is a legal, valid and binding obligation, enforceable
against it in accordance with its terms subject to applicable bankruptcy,
insolvency, reorganization, moratorium or other similar laws affecting
creditors' rights generally and general equity principles.

                                        8

<PAGE>

     WHEREFORE, the parties have signed this Master Confidential Disclosure
Agreement effective as of the date first set forth above.

Schlumberger Technologies, Inc.               NPTest, Inc.

By: __________________________________        By: _____________________________
Name:                                         Name:
Title:                                        Title:

Schlumberger BV

By: __________________________________
Name:
Title:

Schlumberger Technology Corporation

By: __________________________________
Name:
Title:

                                        9<PAGE>

                                                                   Exhibit 10.11

                 Indemnification and Insurance Matters Agreement

                                  by and among

                        Schlumberger Technologies, Inc.,

                      Schlumberger Technology Corporation,

                                 Schlumberger BV

                                       and

                                  NPTest, Inc.

                                _______ __, 2002

<PAGE>

                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                  Page
                                                                                                                  ----
<S>                                                                                                                <C>
ARTICLE I MUTUAL RELEASES; INDEMNIFICATION ...................................................................     1
------------------------------------------
     Section 1.1       Release of Pre-Closing Claims..........................................................     1
     -----------       -----------------------------
     Section 1.2       Indemnification by NPT.................................................................     2
     -----------       ----------------------
     Section 1.3       Indemnification by Schlumberger........................................................     3
     -----------       -------------------------------
     Section 1.4       Indemnification With Respect to Environmental Actions and Conditions...................     3
     -----------       --------------------------------------------------------------------
     Section 1.5       Reductions for Insurance Proceeds and Other Recoveries.................................     4
     -----------       ------------------------------------------------------
     Section 1.6       Procedures for Defense, Settlement and Indemnification of Third Party Claims...........     4
     -----------       ----------------------------------------------------------------------------
     Section 1.7       Additional Matters.....................................................................     5
     -----------       ------------------
     Section 1.8       Survival of Indemnities................................................................     6
     -----------       -----------------------

ARTICLE II INSURANCE MATTERS .................................................................................     6
----------------------------
     Section 2.1       NPT Insurance Coverage After the Separation Date ......................................     6
     -----------       ------------------------------------------------
     Section 2.2       Cooperation and Agreement Not to Release Carriers......................................     6
     -----------       -------------------------------------------------
     Section 2.3       Cooperation............................................................................     7
     -----------       -----------
     Section 2.4       No Assignment or Waiver................................................................     7
     -----------       -----------------------
     Section 2.5       No Liability...........................................................................     7
     -----------       ------------
     Section 2.6       Further Agreements.....................................................................     7
     -----------       ------------------
     Section 2.7       Matters Governed by Employee Matters Agreement.........................................     7
     -----------       ----------------------------------------------

ARTICLE III MISCELLANEOUS ....................................................................................     7
-------------------------
     Section 3.1       Entire Agreement.......................................................................     8
     -----------       ----------------
     Section 3.2       Governing Law..........................................................................     8
     -----------       -------------
     Section 3.3       Descriptive Headings...................................................................     8
     -----------       --------------------
     Section 3.4       Dispute Resolution.....................................................................     8
     -----------       ------------------
     Section 3.5       Notices................................................................................     8
     -----------       -------
     Section 3.6       Parties in Interest....................................................................     9
     -----------       -------------------
     Section 3.7       Other Agreements Evidencing Indemnification Obligations................................     9
     -----------       -------------------------------------------------------
     Section 3.8       Counterparts...........................................................................     9
     -----------       ------------
     Section 3.9       Binding Effect; Assignment.............................................................     9
     -----------       --------------------------
     Section 3.10      Severability...........................................................................     10
     ------------      ------------
     Section 3.11      Failure or Indulgence Not Waiver; Remedies Cumulative..................................     10
     ------------      -----------------------------------------------------
</TABLE>

<PAGE>

<TABLE>
<S>                                                                                  <C>
     Section 3.12      Amendment................................................     10
     ------------      ---------

     Section 3.13      Authority................................................     10
     ------------      ---------

ARTICLE IV DEFINITIONS .........................................................     10
----------------------
     Section 4.1       Action...................................................     10
     -----------       ------
     Section 4.2       Affiliate................................................     10
     -----------       ---------
     Section 4.3       Assets...................................................     10
     -----------       ------
     Section 4.4       Assignment Agreement.....................................     11
     -----------       --------------------
     Section 4.5       Coverage Amount..........................................     11
     -----------       ---------------
     Section 4.6       Employee Matters Agreement...............................     11
     -----------       --------------------------
     Section 4.7       Environmental Actions....................................     11
     -----------       ---------------------
     Section 4.8       Environmental Conditions.................................     11
     -----------       ------------------------
     Section 4.9       Environmental Laws.......................................     11
     -----------       ------------------
     Section 4.10      Hazardous Materials......................................     11
     ------------      -------------------
     Section 4.11      Indemnitee...............................................     11
     ------------      ----------
     Section 4.12      Insurance Policies.......................................     11
     ------------      ------------------
     Section 4.13      IPO Liabilities..........................................     11
     ------------      ---------------
     Section 4.14      IPO Registration Statement...............................     12
     ------------      --------------------------
     Section 4.15      Liabilities..............................................     12
     ------------      -----------
     Section 4.16      Master Separation and Sale Agreement.....................     12
     ------------      ------------------------------------
     Section 4.17      NPT Business.............................................     12
     ------------      ------------
     Section 4.18      NPT Contracts............................................     12
     ------------      -------------
     Section 4.19      NPT Covered Parties......................................     12
     ------------      -------------------
     Section 4.20      NPT Facilities...........................................     12
     ------------      --------------
     Section 4.21      NPT Group................................................     12
     ------------      ---------
     Section 4.22      NPT Indemnitees..........................................     12
     ------------      ---------------
     Section 4.23      NPT Liabilities..........................................     12
     ------------      ---------------
     Section 4.24      Person...................................................     12
     ------------      ------
     Section 4.25      Pre-Separation Third Party Site Liabilities. ............     12
     ------------      -------------------------------------------
     Section 4.26      Prior Transfers..........................................     12
     ------------      ---------------
     Section 4.27      Release..................................................     13
     ------------      -------
     Section 4.28      Sale Date................................................     13
     ------------      ---------
     Section 4.29      Schlumberger Business....................................     13
     ------------      ---------------------
     Section 4.30      Schlumberger Facilities..................................     13
     ------------      -----------------------
</TABLE>

                                       ii

<PAGE>

<TABLE>
<S>                                                                                  <C>
     Section 4.31      Schlumberger Group.......................................     13
     ------------      ------------------
     Section 4.32      Schlumberger Indemnitees.................................     13
     ------------      ------------------------
     Section 4.33      Separation...............................................     13
     ------------      ----------
     Section 4.34      Separation Date..........................................     13
     ------------      ---------------
     Section 4.35      Subsidiary...............................................     13
     ------------      ----------
     Section 4.36      Tax Sharing Agreement....................................     13
     ------------      ---------------------
     Section 4.37      Taxes....................................................     13
     ------------      -----
     Section 4.38      Third Party Claim........................................     13
     ------------      -----------------
     Section 4.39      Underwriting Agreement...................................     13
     ------------      ----------------------
</TABLE>

                                      iii

<PAGE>

                 INDEMNIFICATION AND INSURANCE MATTERS AGREEMENT

     This Indemnification and Insurance Matters Agreement (this "Agreement") is
effective as of _______ __, 2002, by and among Schlumberger Technologies, Inc.,
a Delaware corporation ("STI"), Schlumberger Technology Corporation, a Texas
corporation ("STC"), Schlumberger BV, a company organized and existing under the
laws of the Netherlands ("SBV" and, together with STI, and STC, "Schlumberger"),
and NPTest, Inc. ("NPT"), a Delaware corporation. Capitalized terms used herein
and not otherwise defined herein shall have the meanings ascribed to such terms
in Article IV below.

                                    RECITALS

     WHEREAS, STI and SBV collectively own all of the currently issued and
outstanding common stock of NPT;

     WHEREAS, NPT is engaged in the NPT Business (as such term is defined in the
Master Separation and Sale Agreement);

     WHEREAS, the parties have entered into a Master Separation and Sale
Agreement in connection with the Separation, as there described; and

     WHEREAS, as provided in the Master Separation and Sale Agreement, the
parties desire to set forth certain agreements regarding indemnification and
insurance.

     NOW, THEREFORE, in consideration of the foregoing and the covenants and
agreements set forth below, the parties hereto agree as follows:

                                   ARTICLE I

                        MUTUAL RELEASES; INDEMNIFICATION

     Section 1.1  Release of Pre-Closing Claims.

             (a)  NPT Release. Except as provided in Section 1.1(c) and Schedule
1.1 to this Agreement, effective as of the Separation Date, NPT does hereby, for
itself and as agent for each member of the NPT Group, remise, release and
forever discharge the Schlumberger Indemnitees from any and all Liabilities
whatsoever, whether at law or in equity (including any right of contribution),
whether arising under any contract or agreement, by operation of law or
otherwise, existing or arising from any acts or events occurring or failing to
occur or alleged to have occurred or to have failed to occur or any conditions
existing or alleged to have existed on or before the Separation Date, including
in connection with the transactions and all other activities to implement any of
the Separation, the IPO and the Sale (as such terms are defined in the Master
Separation and Sale Agreement).

             (b)  Schlumberger Release. Except as provided in Section 1.1(c) and
Schedule 1.1 to this Agreement, effective as of the Separation Date,
Schlumberger does hereby, for itself and as agent for each member of the
Schlumberger Group, remise, release and forever discharge the NPT Indemnitees
from any and all Liabilities whatsoever, whether at law or in

<PAGE>

equity (including any right of contribution), whether arising under any contract
or agreement, by operation of law or otherwise, existing or arising from any
acts or events occurring or failing to occur or alleged to have occurred or to
have failed to occur or any conditions existing or alleged to have existed on or
before the Separation Date, including in connection with the transactions and
all other activities to implement any of the Separation, the IPO and the Sale.

             (c) No Impairment. Nothing contained in Section 1.1(a) or (b) shall
impair any right of any Person to enforce the Master Separation and Sale
Agreement, the Underwriting Agreement, any Ancillary Agreement (including this
Agreement) or any agreement executed in connection with the Prior Transfers, in
each case in accordance with their respective terms.

             (d) No Actions as to Released Claims. NPT agrees, for itself and as
agent for each member of the NPT Group, not to make any claim or demand, or
commence any Action asserting any claim or demand, including any claim of
contribution or any indemnification, against Schlumberger or any member of the
Schlumberger Group, or any other Person released pursuant to Section 1.1(a),
with respect to any Liabilities released pursuant to Section 1.1(a).
Schlumberger agrees, for itself and as agent for each member of the Schlumberger
Group, not to make any claim or demand, or commence any Action asserting any
claim or demand, including any claim of contribution or any indemnification,
against NPT or any member of the NPT Group, or any other Person released
pursuant to Section 1.1(b), with respect to any Liabilities released pursuant to
Section 1.1(b).

             (e) Further Instruments. At any time, at the request of any other
party, each party shall cause each member of its respective Group to execute and
deliver releases reflecting the provisions hereof.

     Section 1.2 Indemnification by NPT. Except as otherwise provided in this
Agreement, NPT shall, for itself and as agent for each member of the NPT Group,
indemnify, defend (or, where applicable, pay the defense costs for) and hold
harmless the Schlumberger Indemnitees from and against any and all Liabilities
that any third party seeks to impose upon the Schlumberger Indemnitees, or which
are imposed upon the Schlumberger Indemnitees, and that relate to, arise out of
or result from any of the following items (without duplication):

               (i)   the NPT Business, any NPT Liability or any NPT Contract;

               (ii)  any breach by NPT or any member of the NPT Group of the
Master Separation and Sale Agreement, any of the Ancillary Agreements (including
this Agreement) or any agreement executed in connection with the Prior
Transfers; and

               (iii) any IPO Liabilities.

In the event that any member of the NPT Group makes a payment to the
Schlumberger Indemnitees hereunder, and any of the Schlumberger Indemnitees
subsequently diminishes the Liability on account of which such payment was made,
either directly or through a third-party recovery, Schlumberger will promptly
repay (or will procure a Schlumberger Indemnitee to promptly repay) such member
of the NPT Group the amount by which the payment made by such member of the NPT
Group exceeds the actual cost of the associated indemnified Liability. This
Section 1.2 shall not apply to any Liability indemnified under Section 1.4.

                                       2

<PAGE>

     Section 1.3 Indemnification by Schlumberger. Except as otherwise provided
in this Agreement, Schlumberger shall, for itself and as agent for each member
of the Schlumberger Group, indemnify, defend (or, where applicable, pay the
defense costs for) and hold harmless the NPT Indemnitees from and against any
and all Liabilities that any third party seeks to impose upon the NPT
Indemnitees, or which are imposed upon the NPT Indemnitees, and that relate to,
arise out of or result from any of the following items (without duplication):

                 (i) the Schlumberger Business or any Liability of the
Schlumberger Group other than the NPT Liabilities; and

                 (ii) any breach by Schlumberger or any member of the
Schlumberger Group of the Master Separation and Sale Agreement, any of the
Ancillary Agreements (including this Agreement) or any agreement executed in
connection with the Prior Transfers.

     In the event that any member of the Schlumberger Group makes a payment to
the NPT Indemnitees hereunder, and any of the NPT Indemnitees subsequently
diminishes the Liability on account of which such payment was made, either
directly or through a third-party recovery, NPT will promptly repay (or will
procure a NPT Indemnitee to promptly repay) such member of the Schlumberger
Group the amount by which the payment made by such member of the Schlumberger
Group exceeds the actual cost of the indemnified Liability. This Section 1.3
shall not apply to any Liability indemnified under Section 1.4.

     Section 1.4 Indemnification With Respect to Environmental Actions and
Conditions.

             (a) Indemnification by NPT. NPT shall, for itself and as agent
for each member of the NPT Group, indemnify, defend and hold harmless the
Schlumberger Indemnitees from and against any and all Environmental Actions
relating to, arising out of or resulting from Environmental Conditions (i)
arising out of operations occurring on and after the Separation Date at any of
the NPT Facilities, or (ii) on any of the NPT Facilities arising from an event
causing contamination that first occurs on or after the Separation Date
(including any Release of Hazardous Materials occurring after the Separation
Date that migrates to any of the NPT Facilities), except to the extent that such
Environmental Conditions arise out of the operations of the Schlumberger Group
on and after the Separation Date.

             (b) Indemnification by Schlumberger. Schlumberger shall, for
itself and as agent for each member of the Schlumberger Group, indemnify, defend
and hold harmless the NPT Indemnitees from and against any and all Environmental
Actions relating to, arising out of or resulting from any of the following
items:

                 (i)  Environmental Conditions (x) existing on or under the
NPT Facilities prior to the Separation Date, or (y) arising out of operations
occurring on or before the Separation Date at any of the NPT Facilities;

                 (ii) Except as arising out of the operations of the NPT
Group on and after the Separation Date, Environmental Conditions on or under, or
arising out of operations occurring at any time, whether before or after the
Separation Date, at any of the Schlumberger Facilities; and

                                       3

<PAGE>

             (iii) Pre-Separation Third Party Site Liabilities.

          (c)     Agreement Regarding Payments to Indemnitee. In the event an
Indemnifying Party makes any payment to or on behalf of an Indemnitee with
respect to an Environmental Action for which the Indemnifying Party is obligated
to indemnify under this Section 1.4, and the Indemnitee subsequently receives
any payment from a third party on account of the same financial obligation
covered by the payment made by the Indemnifying Party for that Environmental
Action or otherwise diminishes the financial obligation, the Indemnitee will
promptly pay the Indemnifying Party the amount by which the payment made by the
Indemnifying Party, exceeds the actual cost of the financial obligation.

     Section 1.5 Reductions for Insurance Proceeds and Other Recoveries. The
amount that any party (an "Indemnifying Party") is or may be required to pay to
any other Person (an "Indemnitee") pursuant to Section 1.2, 1.3 or 1.4, as
applicable, shall be reduced (retroactively or prospectively) by any Insurance
Proceeds or other amounts actually recovered from third parties by or on behalf
of such Indemnitee in respect of the related loss. The existence of a claim by
an Indemnitee for monies from an insurer or against a third party in respect of
any indemnifiable loss shall not, however, delay any payment pursuant to the
indemnification provisions contained herein and otherwise determined to be due
and owing by an Indemnifying Party. Rather the Indemnifying Party shall make
payment in full of the amount determined to be due and owing by it against an
assignment by the Indemnitee to the Indemnifying Party of the entire claim of
the Indemnitee for Insurance Proceeds or against such third party.
Notwithstanding any other provisions of this Agreement, it is the intention of
the parties that no insurer or any other third party shall be (i) entitled to a
benefit it would not be entitled to receive in the absence of the foregoing
indemnification provisions, or (ii) relieved of the responsibility to pay any
claims for which it is obligated. If an Indemnitee has received the payment
required by this Agreement from an Indemnifying Party in respect of any
indemnifiable loss and later receives Insurance Proceeds or other amounts in
respect of such indemnifiable loss, then such Indemnitee shall hold such
Insurance Proceeds or other amounts in trust for the benefit of the Indemnifying
Party (or Indemnifying Parties) and shall pay to the Indemnifying Party, as
promptly as practicable after receipt, a sum equal to the amount of such
Insurance Proceeds or other amounts received, up to the aggregate amount of any
payments received from the Indemnifying Party pursuant to this Agreement in
respect of such indemnifiable loss (or, if there is more than one Indemnifying
Party, the Indemnitee shall pay each Indemnifying Party, its proportionate share
(based on payments received from the Indemnifying Parties) of such Insurance
Proceeds). Notwithstanding the other provisions of this Section 1.5, neither
party shall be required to make a claim against its insurers for any
indemnifiable event under this Agreement.

     Section 1.6 Procedures for Defense, Settlement and Indemnification of Third
Party Claims.

          (a)     Notice of Claims. If a Schlumberger Indemnitee or a NPT
Indemnitee (as applicable) (an "Indemnitee") shall receive notice or otherwise
learn of the assertion by a Person (including any Governmental Authority) who is
not a member of the Schlumberger Group or the NPT Group of any claim or of the
commencement by any such Person of any Action (collectively, a "Third Party
Claim") with respect to which a party (an "Indemnifying Party") may be obligated
to provide indemnification to such Indemnitee pursuant to Section 1.2, 1.3 or

                                        4

<PAGE>

1.4, or any other section of the Master Separation and Sale Agreement or any
Ancillary Agreement (including this Agreement), Schlumberger or NPT (as
applicable) will ensure that such Indemnitee shall give such Indemnifying Party
written notice thereof within 30 days after becoming aware of such Third Party
Claim. Any such notice shall describe the Third Party Claim in reasonable
detail. Notwithstanding the foregoing, the delay or failure of any Indemnitee or
other Person to give notice as provided in this Section 1.6(a) shall not relieve
the related Indemnifying Party of its obligations under this Article I, except
to the extent that such Indemnifying Party is actually and substantially
prejudiced by such delay or failure to give notice.

          (b) Defense By Indemnifying Party. An Indemnifying Party shall have
the sole right to manage the defense of and may settle or compromise any Third
Party Claim. Within 30 days after the receipt of notice from an Indemnitee in
accordance with Section 1.6(a) (or sooner, if the nature of such Third Party
Claim so requires), the Indemnifying Party shall notify the Indemnitee that the
Indemnifying Party will assume responsibility for managing the defense of such
Third Party Claim, which notice shall specify any reservations or exceptions.

          (c) Defense By Indemnitee. If an Indemnifying Party fails to assume
responsibility for managing the defense of a Third Party Claim, or fails to
notify an Indemnitee that it will assume responsibility as provided in Section
1.6(a), such Indemnitee may manage the defense of such Third Party Claim;
provided, however, that the Indemnifying Party shall reimburse all such costs
and expenses in the event it is ultimately determined that the Indemnifying
Party is obligated to indemnify the Indemnitee with respect to such Third Party
Claim.

          (d) No Settlement By Indemnitee Without Consent. Unless the
Indemnifying Party has failed to manage the defense of the Third Party Claim in
accordance with the terms of this Agreement, no Indemnitee may settle or
compromise any Third Party Claim without the consent of the Indemnifying Party.

          (e) No Consent to Certain Judgments or Settlements Without Consent.
Notwithstanding any provision of this Section 1.6, no party shall consent to
entry of any judgment or enter into any settlement of a Third Party Claim
without the consent of the other party (such consent not to be unreasonably
withheld) if the effect of such judgment or settlement is to (i) permit any
injunction, declaratory judgment, other order or other nonmonetary relief to be
entered, directly or indirectly, against the other party or (ii) affect the
other party in a material fashion due to the allocation of Liabilities and
related indemnities set forth in the Master Separation and Sale Agreement, this
Agreement or any other Ancillary Agreement.

     Section 1.7 Additional Matters.

          (a) Cooperation in Defense and Settlement. With respect to any Third
Party Claim that implicates both NPT and Schlumberger in a material fashion due
to the allocation of Liabilities, responsibilities for management of defense and
related indemnities set forth in the Master Separation and Sale Agreement, this
Agreement or any of the Ancillary Agreements, the parties agree to cooperate
fully and maintain a joint defense (in a manner that will preserve the
attorney-client privilege with respect thereto) so as to minimize such
Liabilities and defense

                                        5

<PAGE>

costs associated therewith. The party that is not responsible for managing the
defense of such Third Party Claims shall, upon reasonable request, be consulted
with respect to significant matters relating thereto and may, if necessary or
helpful, associate counsel to assist in the defense of such claims.

     (b) Substitution. In the event of an Action in which the Indemnifying Party
is not a named defendant, if either the Indemnitee or the Indemnifying Party
shall so request, the parties shall endeavor to substitute the Indemnifying
Party for the named defendant. If such substitution or addition cannot be
achieved for any reason or is not requested, the rights and obligations of the
parties regarding indemnification and the management of the defense of claims as
set forth in this Article I shall not be altered.

     (c) Subrogation. In the event of payment by or on behalf of any
Indemnifying Party to or on behalf of any Indemnitee in connection with any
Third Party Claim, such Indemnifying Party shall be subrogated to and shall
stand in the place of such Indemnitee, in whole or in part based upon whether
the Indemnifying Party has paid all or only part of the Indemnitee's Liability,
as to any events or circumstances in respect of which such Indemnitee may have
any right, defense or claim relating to such Third Party Claim against any
claimant or plaintiff asserting such Third Party Claim or against any other
person. Such Indemnitee shall cooperate with such Indemnifying Party in a
reasonable manner, and at the cost and expense of such Indemnifying Party, in
prosecuting any subrogated right, defense or claim.

     (d) Not Applicable to Taxes. This Agreement shall not apply to Taxes, which
are covered by the Tax Sharing Agreement.

     Section 1.8  Survival of Indemnities. Subject to Section 3.9 the rights and
obligations of the members of the Schlumberger Group and the NPT Group under
this Article I shall survive the sale or other transfer by any party of any
Assets or businesses or the assignment by it of any Liabilities or the sale by
any member of the Schlumberger Group or the NPT Group of the capital stock or
other equity interests of any Subsidiary to any Person.

                                   ARTICLE II

                                INSURANCE MATTERS

     Section 2.1  NPT Insurance Coverage After the Separation Date From and
after the Separation Date, NPT shall be responsible for obtaining and
maintaining insurance programs for its risk of loss, including comprehensive
general liability and directors and officers insurance, and such insurance
arrangements shall be separate and apart from Schlumberger's insurance programs.
Notwithstanding the foregoing, Schlumberger, upon the request of NPT, shall
provide reasonable assistance to NPT in the transition to its own separate
insurance programs. NPT shall determine the amount and scope of such insurance
after consultation with Schlumberger.

     Section 2.2  Cooperation and Agreement Not to Release Carriers. Each of
Schlumberger and NPT will share such information as is reasonably necessary in
order to permit the other to manage and conduct its insurance matters in an
orderly fashion. Each of Schlumberger and NPT, at the request of the other,
shall cooperate with and use reasonable

                                       6

<PAGE>

efforts to assist the other in recoveries for claims made under any insurance
policy for the benefit of any insured party, and neither Schlumberger nor NPT,
nor any of their Subsidiaries, shall take any action which would intentionally
jeopardize or otherwise interfere with either party's ability to collect any
proceeds payable pursuant to any insurance policy. Except as otherwise
contemplated by the Master Separation and Sale Agreement, this Agreement or any
Ancillary Agreement, after the Separation Date, neither Schlumberger nor NPT
shall (and shall ensure that no member of their respective Groups shall),
without the consent of the other, provide any insurance carrier with a release,
or amend, modify or waive any rights under any such policy or agreement, if such
release, amendment, modification or waiver would adversely affect any rights or
potential rights of any member of the other Group thereunder. However, nothing
in this Section 2.2 shall (A) preclude any member of any Group from presenting
any claim or from exhausting any policy limit, (B) require any member of any
Group to pay any premium or other amount or to incur any Liability, or (C)
require any member of any Group to renew, extend or continue any policy in
force.

     Section 2.3  Cooperation.  Schlumberger and NPT will cooperate with each
other in all respects, and they shall execute any additional documents which are
reasonably necessary, to effectuate the provisions of this Article II.

     Section 2.4  No Assignment or Waiver. This Agreement shall not be
considered as an attempted assignment of any policy of insurance or as a
contract of insurance and shall not be construed to waive any right or remedy of
any member of the Schlumberger Group in respect of any Insurance Policy or any
other contract or policy of insurance.

     Section 2.5  No Liability. NPT does hereby, for itself and as agent for
each other member of the NPT Group, agree that no member of the Schlumberger
Group or any Schlumberger Indemnitee shall have any Liability whatsoever as a
result of the insurance policies and practices of Schlumberger and its
Subsidiaries, including as a result of the level or scope of any such insurance,
the creditworthiness of any insurance carrier, the terms and conditions of any
policy, the adequacy or timeliness of any notice to any insurance carrier with
respect to any claim or potential claim or otherwise.

     Section 2.6  Further Agreements. The Parties acknowledge that they intend
to allocate financial obligations without violating any laws regarding
insurance, self-insurance or other financial responsibility. If it is determined
that any action undertake pursuant to the Master Separation and Sale Agreement,
this Agreement or any Ancillary Agreement is violative of any insurance,
self-insurance or related financial responsibility law or regulation, the
parties agree to work together to do whatever is necessary to comply with such
law or regulation while trying to accomplish, as much as possible, the
allocation of financial obligations as intended in the Master Separation and
Sale Agreement, this Agreement and any Ancillary Agreement.

     Section 2.7  Matters Governed by Employee Matters Agreement. This Article
II shall not apply to any insurance policies that are the subject of the
Employee Matters Agreement.

                                  ARTICLE III

                                  MISCELLANEOUS

                                       7

<PAGE>

       Section 3.1 Entire Agreement. This Agreement, the Master Separation and
Sale Agreement, the other Ancillary Agreements and the Exhibits and Schedules
attached hereto and thereto, and any agreement executed in connection with the
Prior Transfers constitute the entire agreement between the parties with respect
to the subject matter hereof and shall supersede all prior written and oral and
all contemporaneous oral agreements and understandings with respect to the
subject matter hereof.

       Section 3.2 Governing Law. This Agreement shall be construed in
accordance with and all Disputes hereunder shall be governed by the laws of the
State of Delaware, excluding its conflict of law rules and the United Nations
Convention on Contracts for the International Sale of Goods.

       Section 3.3 Descriptive Headings. The headings contained in this
Agreement, in any Exhibit or Schedule hereto and in the table or contents to
this Agreement are for reference purposes only and shall not affect in any way
the meaning or interpretation of this Agreement. Any capitalized term used in
any Schedule or Exhibit but not otherwise defined therein, shall have the
meaning assigned to such term in this Agreement. When a reference is made in
this Agreement to an Article or a Section, Exhibit or Schedule, such reference
shall be to an Article or Section of, or an Exhibit or Schedule to, this
Agreement unless otherwise indicated.

       Section 3.4 Dispute Resolution. The terms of the provisions entitled
"Dispute Resolution" in the Master Separation and Sale Agreement shall apply to
any claims or controversies or disputes arising hereunder among the parties to
this Agreement.

       Section 3.5 Notices. Notices, offers, requests or other communications
required or permitted to be given by either party pursuant to the terms of this
Agreement shall be given in writing to the respective parties to the following
addresses:

                   if to STI:

                               Schlumberger Technologies, Inc.
                               [To Come]
                               Attention:   [__________]
                               Telephone:   [__________]
                               Facsimile:   [__________]

                   if to SBV:

                               Schlumberger BV
                               [To Come]
                               Attention:   [__________]
                               Telephone:   [__________]
                               Facsimile:   [__________]

                   if to STC:

                               Schlumberger Technology Corporation

                                        8

<PAGE>

                              [To Come]
                              Attention:    [__________]
                              Telephone:    [__________]
                              Facsimile:    [__________]

                  if to NPT:

                              NPTest, Inc.
                              [To Come]
                              Attention:    General Counsel
                              Telephone:    [__________]
                              Facsimile:    [__________]

or to such other address as the party to whom notice is given may have
previously furnished to the other in writing as provided herein. Any notice
involving non-performance, termination, or renewal shall be sent by hand
delivery, recognized overnight courier or, within the United States, may also be
sent via certified mail, return receipt requested. All other notices may also be
sent by fax, confirmed by first class mail. All notices shall be deemed to have
been given and received on the earlier of actual delivery or three days from the
date of postmark.

       Section 3.6 Parties in Interest. This Agreement, including the Schedules
and Exhibits hereto, and the other documents referred to herein, shall be
binding upon Schlumberger, Schlumberger's Subsidiaries, NPT and NPT's
Subsidiaries and inure solely to the benefit of the NPT Indemnitees and the
Schlumberger Indemnitees and their respective permitted assigns, and nothing in
this Agreement, express or implied, is intended to confer upon any other Person
any rights or remedies of any nature whatsoever under or by reason of this
Agreement.

       Section 3.7 Other Agreements Evidencing Indemnification Obligations.
Schlumberger hereby agrees to execute, for the benefit of any NPT Indemnitee,
such documents as may be reasonably requested by such NPT Indemnitee, evidencing
Schlumberger's agreement that the indemnification obligations of Schlumberger
set forth in this Agreement inure to the benefit of and are enforceable by such
NPT Indemnitee. NPT hereby agrees to execute, for the benefit of any
Schlumberger Indemnitee, such documents as may be reasonably requested by such
Schlumberger Indemnitee, evidencing NPT's agreement that the indemnification
obligations of NPT set forth in this Agreement inure to the benefit of and are
enforceable by such Schlumberger Indemnitee.

       Section 3.8 Counterparts. This Agreement, including the Schedules and
Exhibits hereto, and the other documents referred to herein, may be executed in
counterparts, each of which shall be deemed to be an original but all of which
shall constitute one and the same agreement.

       Section 3.9 Binding Effect; Assignment. No party may, directly or
indirectly, in whole or in part, whether by operation of law or otherwise,
assign or transfer this Agreement, without the other parties' prior written
consent, and any attempted assignment, transfer or delegation without such prior
written consent shall be voidable at the sole option of such other parties.
Notwithstanding the foregoing, each party (or its permitted successive assignees
or

                                        9

<PAGE>

transferees hereunder) may assign or transfer this Agreement as a whole without
consent to an entity that succeeds to all or substantially all of the business
or assets of such party. Without limiting the foregoing, this Agreement will be
binding upon and inure to the benefit of the parties and their permitted
successors and assigns. This Agreement may be enforced separately by each member
of the Schlumberger Group and each member of the NPT Group.

     Section 3.10 Severability. If any term or other provision of this Agreement
is determined by a court, administrative agency or arbitrator to be invalid,
illegal or incapable of being enforced by any rule of law or public policy, all
other conditions and provisions of this Agreement will nevertheless remain in
full force and effect so long as the economic or legal substance of the
transactions contemplated is not affected in any manner materially adverse to
any party. Upon such determination that any term or other provision is invalid,
illegal or incapable of being enforced, the parties shall negotiate in good
faith to modify this Agreement so as to effect the original intent of the
parties as closely as possible in an acceptable manner to the end that
transactions contemplated hereby are fulfilled to the fullest extent possible.

     Section 3.11 Failure or Indulgence Not Waiver; Remedies Cumulative. No
failure or delay on the part of either party hereto in the exercise of any right
hereunder shall impair such right or be construed to be a waiver of, or
acquiescence in, any breach of any representation, warranty or agreement herein,
nor shall any single or partial exercise of any such right preclude other or
further exercise thereof or of any other right.

     Section 3.12 Amendment. No change or amendment will be made to this
Agreement except by an instrument in writing signed on behalf of each of the
parties to this Agreement.

     Section 3.13 Authority. Each of the parties hereto represents to the other
that (a) it has the corporate or other requisite power and authority to execute,
deliver and perform this Agreement, (b) the execution, delivery and performance
of this Agreement by it have been duly authorized by all necessary corporate or
other action, (c) it has duly and validly executed and delivered this Agreement,
and (d) this Agreement is a legal, valid and binding obligation, enforceable
against it in accordance with its terms subject to applicable bankruptcy,
insolvency, reorganization, moratorium or other similar laws affecting
creditors' rights generally and general equity principles.

                                   ARTICLE IV

                                   DEFINITIONS

     Section 4.1  Action. "Action" means any demand, action, suit, countersuit,
arbitration, inquiry, proceeding or investigation by or before any federal,
state, local, foreign or international governmental authority or any arbitration
or mediation tribunal.

     Section 4.2  Affiliate. "Affiliate" shall have the meaning set forth in the
Master Separation and Sale Agreement.

     Section 4.3  Assets. "Assets" has the meaning set forth in Section 4.4 of
the Assignment Agreement.

                                       10

<PAGE>

     Section 4.4  Assignment Agreement. "Assignment Agreement" means the General
Assignment and Assumption Agreement attached as Exhibit C to the Master
Separation and Sale Agreement.

     Section 4.5  Coverage Amount. "Coverage Amount" has the meaning set forth
in Section 2.6(a) of this Agreement.

     Section 4.6  Employee Matters Agreement. "Employee Matters Agreement" means
the Employee Matters Agreement attached as Exhibit E to the Master Separation
and Sale Agreement.

     Section 4.7  Environmental Actions. "Environmental Actions" means any
notice, claim, act, cause of action, order, decree or investigation by any third
party (including, without limitation, any Governmental Authority) alleging
potential liability (including potential liability for investigatory costs,
cleanup costs, governmental response costs, natural resources damages, damage to
flora or fauna caused by Environmental Conditions, real property damages,
personal injuries or penalties) arising out of, based on or resulting from the
Release of or exposure of any individual to any Hazardous Materials.

     Section 4.8  Environmental Conditions. "Environmental Conditions" means the
presence in the environment, including the soil, groundwater, surface water or
ambient air, of any Hazardous Material at a level which exceeds any applicable
standard or threshold under any Environmental Law or otherwise requires
investigation or remediation (including, without limitation, investigation,
study, health or risk assessment, monitoring, removal, treatment or transport)
under any applicable Environmental Laws.

     Section 4.9  Environmental Laws. "Environmental Laws" means all laws and
regulations of any Governmental Authority with jurisdiction that relate to the
protection of the environment (including ambient air, surface water, ground
water, land surface or subsurface strata) including laws and regulations
relating to the Release of Hazardous Materials, or otherwise relating to the
treatment, storage, disposal, transport or handling of Hazardous Materials, or
to the exposure of any individual to a Release of Hazardous Materials.

     Section 4.10 Hazardous Materials. "Hazardous Materials" means chemicals,
pollutants, contaminants, wastes, toxic substances, radioactive and biological
materials, hazardous substances, petroleum and petroleum products or any
fraction thereof.

     Section 4.11 Indemnitee. "Indemnitee" has the meaning set forth in Section
1.5(a) hereof.

     Section 4.12 Insurance Policies. "Insurance Policies" means insurance
policies pursuant to which a Person makes a true risk transfer to an insurer.

     Section 4.13 IPO Liabilities. "IPO Liabilities" means any Liabilities
relating to, arising out of or resulting from any untrue statement or alleged
untrue statement of a material fact or omission or alleged omission to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading, with respect to all information contained in the IPO

                                       11

<PAGE>

Registration Statement or any preliminary, final or supplemental prospectus
forming a part of a IPO Registration Statement.

        Section 4.14 IPO Registration Statement. "IPO Registration Statement"
shall have the meaning set forth in the Master Separation and Sale Agreement.

        Section 4.15 Liabilities. "Liabilities" has the meaning set forth in
Section 4.13 of the Assignment Agreement.

        Section 4.16 Master Separation and Sale Agreement. "Master Separation
and Sale Agreement" means that certain Master Separation and Sale Agreement by
and among STI, STC, SBV and NPT.

        Section 4.17 NPT Business. "NPT Business" has the meaning set forth in
the Master Separation and Sale Agreement.

        Section 4.18 NPT Contracts. "NPT Contracts" has the meaning set forth in
Section 4.23 of the Assignment Agreement.

        Section 4.19 NPT Covered Parties. "NPT Covered Parties" has the meaning
set forth in Section 2.1(a) of this Agreement.

        Section 4.20 NPT Facilities. "NPT Facilities" means all of those
acilities transferred to NPT on or before the Separation Date as set forth on
Schedule 1 to the Real Estate Matters Agreement.

        Section 4.21 NPT Group. "NPT Group" has the meaning set forth in the
Master Separation and Sale Agreement.

        Section 4.22 NPT Indemnitees. "NPT Indemnitees" means NPT, each member
of the NPT Group and each of their respective directors, officers and employees.

        Section 4.23 NPT Liabilities. "NPT Liabilities" has the meaning set
forth in Section 1.3 of the Assignment Agreement.

        Section 4.24 Person. "Person" has the meaning set forth in the Master
Separation and Sale Agreement.

        Section 4.25 Pre-Separation Third Party Site Liabilities.
"Pre-Separation Third Party Site Liabilities" means any and all Environmental
Actions arising out of Hazardous Materials found on, under or about any landfill
any waste, storage, transfer or recycling site and resulting from or arising out
of Hazardous Materials stored, treated, recycled disposed or otherwise handled
at such site prior to the Separation Date (whether for the operation of the NPT
Business or for the operation of any past or presently (as of the date hereof)
existing Schlumberger Business as operated on or before the Separation Date).

        Section 4.26 Prior Transfers. "Prior Transfers" has the meaning set
forth in the Master Separation and Sale Agreement.

                                       12

<PAGE>

        Section 4.27 Release. "Release" means any release, spill, emission,
leaking, pumping, injection, deposit, disposal, discharge, dispersal, leaching
or migration into the indoor or outdoor environment, including, without
limitation, the movement of Hazardous Materials through ambient air, soil,
surface water, groundwater, wetlands, land or subsurface strata.

        Section 4.28 Sale Date. "Sale Date" has the meaning set forth in the
Master Separation and Sale Agreement.

        Section 4.29 Schlumberger Business. "Schlumberger Business" means any
business of Schlumberger other than the NPT Business.

        Section 4.30 Schlumberger Facilities. "Schlumberger Facilities" means
all of the real property and improvements thereon owned or occupied at any time
on or before the Separation Date by any member of the Schlumberger Group,
whether for the Schlumberger Business or the NPT Business, excluding the NPT
Facilities.

        Section 4.31 Schlumberger Group. "Schlumberger Group" has the meaning
set forth in the Master Separation and Sale Agreement.

        Section 4.32 Schlumberger Indemnitees. "Schlumberger Indemnitees" means
Schlumberger, each member of the Schlumberger Group and each of their respective
directors, officers and employees.

        Section 4.33 Separation. "Separation" has the meaning set forth in the
Master Separation and Sale Agreement.

        Section 4.34 Separation Date. " Separation Date" has the meaning set
forth in the Master Separation and Sale Agreement.

        Section 4.35 Subsidiary. "Subsidiary" has the meaning set forth in the
Master Separation and Sale Agreement.

        Section 4.36 Tax Sharing Agreement. "Tax Sharing Agreement" means the
Tax Sharing Agreement, attached as Exhibit F to the Master Separation and Sale
Agreement.

        Section 4.37 Taxes. "Taxes" has the meaning set forth in the Tax Sharing
Agreement.

        Section 4.38 Third Party Claim. "Third Party Claim" has the meaning set
forth in Section 1.6(a) of this Agreement.

        Section 4.39 Underwriting Agreement. "Underwriting Agreement" has the
meaning set forth in the Master Separation and Sale Agreement.

                                       13

<PAGE>

    IN WITNESS WHEREOF, each of the parties has caused this Indemnification and
Insurance Matters Agreement to be executed on its behalf by its officers
thereunto duly authorized on the day and year first above written.

    Schlumberger Technologies, Inc.              NPTest, Inc.

    ___________________________________          _______________________________
By:                                          By:
    Name                                         Name:
    Title:                                       Title:

    Schlumberger BV

    ____________________________________
By:
    Name:
    Title:

    Schlumberger Technology Corporation

    ____________________________________
By:
    Name:
    Title:

                                       14

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