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                             TAX SHARING AGREEMENT

                                by and between

                               Fluor Corporation
                            a Delaware corporation
                             incorporated in 1978

                                      and

                               Fluor Corporation
                            a Delaware corporation
                             incorporated in 2000



                               NOVEMBER 30, 2000
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                             TAX SHARING AGREEMENT

     This TAX SHARING AGREEMENT ("Agreement") is entered into as of November 30,
2000, by and between Fluor Corporation, a Delaware corporation incorporated in
1978, which shall be renamed "Massey Energy Company" in connection with the
transactions contemplated herein (together with its successors and permitted
assigns, "Parent"), Fluor Corporation, a Delaware corporation incorporated in
2000 (together with its successors and permitted assigns, "New Fluor"), and A.T.
Massey Coal Company, Inc., a Virginia corporation ("A.T. Massey").

                                  WITNESSETH

     WHEREAS, as of the date hereof, Parent is the common parent of an
affiliated group of corporations which has elected to file consolidated Federal
Income Tax Returns;

     WHEREAS, Parent and New Fluor have entered into a Distribution Agreement
setting forth the corporate transactions pursuant to which Parent will
distribute all of the outstanding shares of common stock of New Fluor to Parent
shareholders in a transaction intended to qualify as a tax-free distribution
under section 355 of the Code (as defined below);

     WHEREAS, as a result of the Transactions (as defined below), members of the
New Fluor Group and members of the Massey Group will become members of the same
affiliated group and will be members of the same affiliated group for a portion
of Parent's taxable year that includes the Distribution Date;

     WHEREAS, as a result of the Distribution, New Fluor and its subsidiaries
will cease, effective as of the day after the Distribution Date, to be members
of the affiliated group of which Parent is the common parent; and

     WHEREAS, the Companies desire to provide for and agree upon the allocation
between the parties of liabilities for Taxes (as defined below) arising prior
to, as a result of, and subsequent to the Transactions,  and to provide for and
agree upon other matters relating to Taxes.

     NOW THEREFORE, in consideration of the mutual agreements contained herein,
the parties hereby agree as follows:

     Section 1.  Definition of Terms.

          (a)  General.  For purposes of this Agreement (including the recitals
hereof), the following terms have the following meanings:

     "Accounting Cutoff Date" means, with respect to any entity, any date as of
the end of which there is a closing of the financial accounting records for such
entity.

     "Accounting Firm" shall have the meaning provided in Section 15.

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     "Adjustment Request" means any formal or informal claim or request filed
with any Tax Authority, or with any administrative agency or court, for the
adjustment, refund, or credit of Taxes including (i) any amended Tax Return
claiming adjustment to the Taxes as reported on the Tax Return or, if
applicable, as previously adjusted, or (ii) any claim for refund or credit of
Taxes previously paid, including any Carryback Adjustment Request (as defined in
Section 5.04(a) hereof), any Carryover Adjustment Request (as defined in Section
5.04(b) hereof), and any Audit Adjustment Request (as defined in Section 5.04(c)
hereof).

     "Affiliate" means any entity (and its predecessors) that, directly or
indirectly, is "controlled" by the person or entity in question.  "Control"
means the possession, directly or indirectly, of the power to direct or cause
the direction of the management and policies of a person, whether through
ownership of voting securities, by contract or otherwise.  Except as otherwise
provided herein, the term "Affiliate" shall refer to Affiliates of a person as
determined immediately after the Distribution.

     "Agreement" shall mean this Tax Sharing Agreement.

     "Audit Adjustment" means any change to a Tax Item or the Tax liability as
previously reported or reflected on a Tax Return that is required or otherwise
results from or is attributable to an audit, examination or other review of such
Tax Return by a Tax Authority, whether such audit, examination or other review
is initiated by a Tax Authority or a member of a Group.

     "Base Rate" means one-month LIBOR, as in effect from time to time and
quoted in the Wall Street Journal, Eastern Edition (or, if the Wall Street
Journal ceases to be published or ceases to publish one-month LIBOR, such other
reliable source as the parties shall mutually select), compounded quarterly on
the basis of a year of 365 or 366 (as applicable) days and actual days elapsed.

     "Carryback" means any net operating loss, net capital loss, foreign Tax,
excess Tax credit, or other Tax Item which may or must be carried back from one
Tax Period to another Tax Period under the Code or other applicable Tax Law.

     "Carryover" means any net operating loss, net capital loss, foreign Tax,
excess Tax credit or other Tax Item which may or must be carried forward from
one Tax Period to another Tax Period under the Code or other applicable Tax Law.

     "Code" means the U.S. Internal Revenue Code of 1986, as amended, or any
successor Law.

     "Companies" means Parent and New Fluor, collectively, and "Company" means
any one of Parent and New Fluor.

     "Consolidated or Combined Tax" means any Tax which applies on a basis
whereby one or more members of both Groups are consolidated or combined into a
single group (including through a unitary Tax Return), other than a
consolidation or combination in which the members of one Group are subject to
the Tax only because members of the other Group are so subject.

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     "Consolidated or Combined Tax Return" means any Tax Return which relates to
a Consolidated or Combined Tax.

     "Consolidated Tax Liability" means, (i) with respect to any consolidated
Federal  Income Tax Return, the "tax liability of the group" as that term is
used in Treasury Regulation Section 1.1552-1(b), including any applicable
alternative minimum tax, interest, penalties, additions to tax and additional
amounts as provided under the Code, and (ii) with respect to any Consolidated or
Combined Tax Return other than a Tax Return described in the foregoing clause
(i), the consolidated or combined Tax liability of the group, including any
applicable interest, penalties, additions to tax and additional amounts, as
determined under applicable Tax Laws.

     "Distribution" means the distribution to Parent shareholders on the
Distribution Date of all of the outstanding stock of New Fluor owned by Parent.

     "Distribution Agreement" means the agreement, dated as of the date hereof,
as amended from time to time, setting forth the corporate transactions required
to effect the distribution to Parent shareholders of New Fluor Common Shares,
and to which this Tax Sharing Agreement is attached as an exhibit.

     "Distribution Date" means the "Distribution Date" as that term is defined
in the Distribution Agreement.

     "Federal Income Tax" means any Income Tax imposed on corporations under the
Code.

     "Foreign Income Tax" means any Income Tax imposed on corporations by any
foreign country or any possession of the United States, or by any political
subdivision of any foreign country or United States possession.

     "Group" means the Parent Group, the Massey Group or the New Fluor Group, as
the context requires.

     "Income Tax" means any Tax based upon, measured by, or calculated with
respect to (i) net income or profits (including any capital gains Tax, minimum
Tax and any Tax on items of tax preference, but not including sales, use, real
or personal property, gross or net receipts, transfer or similar Taxes) or (ii)
multiple bases, if one or more of the bases upon which such Tax may be based,
measured by, or calculated with respect to, is described in the foregoing clause
(i), in each case inclusive of any interest, penalties, additions to tax or
additional amounts in respect of or related to the foregoing.

     "Joint Adjustment" means any adjustment proposed by a Tax Authority or any
claim for refund asserted in a Tax Contest which is neither a New Fluor
Adjustment nor a Parent Adjustment.

     "Law" means any Federal, State, local or other law or governmental
requirement of any kind and the rules, regulations and orders (administrative or
judicial) promulgated thereunder.

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     "Massey Group" means A.T. Massey and its direct and indirect subsidiaries
which would be included in its affiliated group pursuant to Code Section 1504 if
A.T. Massey were the parent of such group, provided, however, for purposes of
this Agreement said Code Section 1504 shall be applied by (i) substituting "50
percent" for "80 percent" at each place where the words "80 percent" appear in
Code Section 1504(a)(2), and (ii) treating as an "includible corporation" any
corporation which otherwise would not constitute an includible corporation
pursuant to Code Section 1504(b).

     "New Fluor Adjustment" means any adjustment to a Tax Item or Tax liability
proposed by a Tax Authority or any claim for refund asserted in a Tax Contest to
the extent New Fluor would be exclusively liable for any resulting Tax under
this Agreement and exclusively entitled to receive any resulting Tax Benefit
under this Agreement.

     "New Fluor Group" means (i) for periods up to and including the
Distribution Date, Parent and its direct and indirect subsidiaries which are
included in its affiliated group pursuant to Code Section 1504, but excluding
members of the Massey Group and (ii) for periods after the Distribution Date,
New Fluor and its direct and indirect subsidiaries which are included in its
affiliated group pursuant to section 1504 of the Code, provided, however, for
purposes of this Agreement said Code Section 1504 shall be applied by (i)
substituting "50 percent" for "80 percent" at each place where the words "80
percent" appear in Code Section 1504(a)(2), and (ii) treating as an "includible
corporation" any corporation which otherwise would not constitute an includible
corporation pursuant to Code Section 1504(b).

     "Other Company" means, with respect to a Tax Return, the Company which is
not the Responsible Company with respect to that Tax Return.

     "Parent Adjustment" means any adjustment to a Tax Item or Tax liability
proposed by a Tax Authority or any claim for refund asserted in a Tax Contest to
the extent Parent would be exclusively liable for any resulting Tax under this
Agreement and exclusively entitled to receive any resulting Tax Benefit under
this Agreement.

     "Parent Group" means (a) for periods up to and including the Distribution
Date, the Massey Group and (b) for periods after the Distribution Date, Parent
and the Massey Group.

     "Payment Date" means (i) with respect to any consolidated Federal Income
Tax Return which includes members of both the Parent Group and the New Fluor
Group, the due date for any required installment of estimated taxes determined
under Code Section 6655, the due date (determined without regard to extensions)
for filing the return determined under Code Section 6072, and the date the
return is filed, and (ii) with respect to any other Consolidated or Combined Tax
Return, the corresponding dates determined under the applicable Tax Law.

     "Responsible Company" means, with respect to any Tax Return, the Company
which is responsible for preparing and filing the Tax Return under this
Agreement.

     "Restructuring Tax" means any Tax imposed on or with respect to any income
or gain recognized as a result of any one or more of the Transactions.

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     "Ruling" means the private letter ruling issued by the Internal Revenue
Service in response to the Ruling Request, including any amendments or
supplements to such private letter ruling.

     "Ruling Request" means the letter filed by Parent with the Internal Revenue
Service requesting a ruling from the Internal Revenue Service regarding certain
Tax consequences of  the Transactions (including all attachments, exhibits, and
other materials submitted with such ruling request letter) and any amendments or
supplements to such ruling request letter.

     "Section" means Sections of this Agreement, except where otherwise
indicated.

     "Separate Company Tax" means any Tax applicable only to a member or members
of a single Group.

     "Separate Company Tax Return" means any Tax Return which relates to a
Separate Company Tax.

     "State Income Tax" means any Income Tax imposed on corporations by any
State of the United States or by any political subdivision of any such State.

     "Straddle Period" means any Tax Period which includes one or more members
of the New Fluor Group or the Parent Group for the entire Tax Period and which
includes one or more members of the other Group for only a portion of such Tax
Period.

     "Tax" or "Taxes"  means any income, gross income, gross receipts, profits,
capital stock, franchise, withholding, payroll, social security, workers
compensation, unemployment, disability, property, ad valorem, stamp, excise,
severance, occupation, service, sales, use, license, lease, transfer, import,
export, value added, alternative minimum, estimated or similar tax (including
any fee, assessment, or other charge in the nature of or in lieu of any tax)
imposed by any governmental entity or political subdivision thereof, and any
interest, penalties, additions to tax, or additional amounts in respect of or
related to the foregoing.

     "Tax Authority" means, with respect to any Tax, the governmental entity or
political subdivision thereof that imposes such Tax, and the agency (if any)
charged with the collection of such Tax for such entity or subdivision.

     "Tax Benefit" means any refund, credit, or other reduction in otherwise
required Tax payments (including any reduction in estimated Tax payments),
including, without limitation, any reduction in a Tax liability attributable to
deductions resulting from expenses, depreciation, amortization or other sources.

     "Tax Contest" means an audit, review, examination, or any other
administrative or judicial proceeding with the purpose or effect of
redetermining Taxes of any of the Companies or their Affiliates (including any
administrative or judicial review of any claim for refund) for any Tax Period
ending on or before, or including, the Distribution Date and any Straddle
Period.

     "Tax Item" means, with respect to any Income Tax, any item of income, gain,
loss, deduction, or credit.

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     "Tax Law" means the Law of any governmental entity or political subdivision
thereof relating to any Tax.

     "Tax Period" means, with respect to any Tax, the period for which the Tax
is reported as provided under the Code or other applicable Tax Law.

     "Tax Records" means Tax Returns, Tax Return workpapers, documentation
relating to any Tax Contests, and any other books of account or records required
to be maintained under the Code or other applicable Tax Laws or under any record
retention agreement with any Tax Authority.

     "Tax Return" means any report of Taxes due, any claims for refund of Taxes
paid, any information return with respect to Taxes, or any other similar report,
statement, declaration, or document required to be filed under the Code or other
Tax Law, including any attachments, exhibits or other materials submitted with
any of the foregoing, and including any amendments or supplements to any of the
foregoing.

     "Transactions" means the Distribution and any of the preliminary
transactions which members of the New Fluor Group or the Massey Group implement
or participate in so as to prepare for or otherwise facilitate the Distribution.

     "Treasury Regulations" means the regulations promulgated from time to time
under the Code as in effect for the relevant Tax Period.

     "With/Without Allocation Method" means, with respect to any Consolidated or
Combined Tax, the methodology for allocating the liability for such Tax among
and between the Parent Group and the New Fluor Group in accordance with the
principles and provisions of Section 2.01 or Section 2.02, whichever may be
applicable.

          (b)  Other Definitional Provisions.

               (i)   Any term not defined above shall have the meaning ascribed
thereto in the text of this Agreement where such term is first used.

               (ii)  The words "hereof", "herein", and "hereunder" and words of
similar import, when used in this Agreement, shall refer to this Agreement as a
whole and not to any particular provision of this Agreement.

               (iii) Terms defined in the singular shall have a comparable
meaning when used in the plural, and vice versa.

               (iv)  The words "includes" and "including" shall be construed as
though followed by "without limitation" or words of similar import, unless the
context clearly requires otherwise.

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     Section 2.  Allocation of Tax Liabilities.

     2.01  Allocation of United States Federal Income Tax.  Except as provided
in Section 2.04 and subject to Section 3:

           (a)  Separate Tax Periods. Insofar as the New Fluor Group and/or the
Parent Group file Federal Income Tax Returns for any Tax Periods which do not
include any member of the other Group, the filing Group shall be liable for (and
shall indemnify and hold the other Group harmless from) any Federal Income Tax
that is attributable to such Tax Periods .

           (b)  Combined Taxable Years. If one or more members of the New Fluor
Group and one or more members of the Parent Group are included in the same
consolidated Federal Income Tax Return:

                (i)  Allocation of Tax. For any relevant taxable year beginning
after October 31, 2000, (1) the Consolidated Tax Liability for the entire
taxable year shall be computed by excluding the New Fluor Group (the "Federal
Without Amount") and (2) the Consolidated Tax Liability for the entire taxable
year shall be computed by including the New Fluor Group (but only for the
portion of such taxable year during which the New Fluor Group is included in the
consolidated Federal Income Tax Return) but without taking into account losses
or other deductions or credits of the Parent Group not used in calculating the
Federal Without Amount and losses or other deductions or credits of the New
Fluor Group not used in the consolidated Federal Income Tax Return, whether any
such losses, deductions or credits of the Parent Group or the New Fluor Group
arise in such taxable year or are carried forward or back from another taxable
year (the "Federal With Amount"). The Parent Group shall be allocated and liable
for the Federal Without Amount. The New Fluor Group shall be allocated and
liable for the excess, if any, of the Federal With Amount over the Federal
Without Amount. If the Federal With Amount exceeds the Federal Without Amount,
New Fluor shall pay the excess amount to Parent in accordance with the
applicable provisions of Section 5. If the Federal With Amount is less than the
Federal Without Amount, Parent shall pay the amount of the difference to New
Fluor in accordance with the applicable provisions of Section 5. The allocation
of Tax liabilities under this Section 2.01(b)(i) is the "Federal Allocation
Method".

                (ii) Allocation of Consolidated Federal Tax Adjustments. If
there is any Audit Adjustment to any Tax Item for any relevant Tax Period
beginning after October 31, 2000, the Federal With Amount and the Federal
Without Amount shall be recalculated, in accordance with the principles of
Section 2.01(b)(i), to reflect such Audit Adjustment. New Fluor shall be
allocated and liable for, and shall pay to Parent in accordance with the
provisions of Section 5, the amount described in whichever one (but not more
than one) of the following three clauses is applicable: (1) the amount by which
the excess of the Federal With Amount over the Federal Without Amount as
recalculated is greater than such excess as previously (and most recently)
calculated under this Section 2.01(b), (2) the amount by which the excess of the
Federal Without Amount over the Federal With Amount as recalculated is less than
such excess as previously (and most recently) calculated, or (3) the sum of the
excess of the Federal With Amount over the Federal Without Amount as
recalculated plus the excess of the Federal Without Amount over the Federal With
Amount as previously (and most recently) calculated. Parent shall be allocated
and liable for, and shall pay to New Fluor in accordance with the provisions of

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Section 5, the amount described in whichever one (but not more than one) of the
following three clauses is applicable: (1) the amount by which the excess of the
Federal With Amount over the Federal Without Amount as recalculated is less than
such excess as previously (and most recently) calculated under this Section
2.01(b), (2) the amount by which the excess of the Federal Without Amount over
the Federal With Amount as recalculated is greater than such excess as
previously (and most recently) calculated, or (3) the sum of the excess of the
Federal Without Amount over the Federal With Amount as recalculated plus the
excess of the Federal With Amount over the Federal Without Amount as previously
(and most recently) calculated. The parties agree and understand that their
respective obligations to make payments hereunder resulting from Audit
Adjustments shall apply in circumstances wherein there is no additional net Tax
liability payable to a Tax Authority attributable to the adjustment of one or
more Tax Items on the applicable Tax Return but the adjustments result in
changes to the Federal With Amount and/or Federal Without Amount as recalculated
to reflect all such Audit Adjustments.

                (iii) Compensation for Loss of Tax Credits.  This paragraph
applies if, as a result of including members of the Parent Group and members of
the New Fluor Group in a consolidated Federal Income Tax Return for a Tax Period
(such Tax Period, an "Applicable Tax Period," and such return, an "Applicable
Consolidated Return"), (A) the minimum tax credits or other Federal Income Tax
credits generated by the Parent Group and available as a carryover to a
subsequent Tax Period are less than such carryover credits would be if such
members of the New Fluor Group had not been included in such Applicable
Consolidated Return (the excess of (1) the amount of credits that would have
been generated and available as a carryover if the New Fluor Group had not been
included in the Applicable Consolidated Return, over (2) the amount of such
credits generated and available as a carryover by the Parent Group is referred
to herein as the "Displaced Credits"); (B) the portion of the Federal Income Tax
liability for such Applicable Tax Period that is allocated to the New Fluor
Group under this Section 2.01 is less than the Federal Income Tax that the New
Fluor Group would have incurred, if it had not been included in such Applicable
Consolidated Return, for the portion of the Applicable Tax Period during which
the New Fluor Group is included in the Applicable Consolidated Return (the
excess of (1) the amount of Federal Income Tax liability that would have been
incurred by the New Fluor Group had it not been included in the Applicable
Consolidated Return over (2) the amount of such Federal Income Tax liability
allocated to the New Fluor Group under this Section 2.01 is referred to herein
as the "New Fluor Group Tax Savings"); and (C) in a subsequent Tax year (a
"Credit Deficiency Year") the Parent Group incurs a Federal Income Tax liability
that it would not have incurred if it had available to it all or any portion of
the Displaced Credits, with such availability to be determined after giving
effect to any limitation on the Displaced Credits, including any limitation on
the number of Tax Periods to which the Displaced Credits could have been carried
under applicable Federal Income Tax Law (such Tax liability is referred to
herein as the "Parent Group Additional Tax Liability"). For purposes of this
paragraph, if, in a subsequent Tax year to which Displaced Credits would have
been available to carry, the Parent Group does not incur a Parent Group
Additional Tax Liability because the Parent Group uses other Federal Income Tax
credits which are actually available ("Replacement Credits"), such Replacement
Credits shall replace Displaced Credits (on a dollar-for-dollar basis) and shall
thereafter be treated as Displaced Credits if and to the extent that the
Replacement Credits (had they not been so used) would have been available for
use by the Parent Group for periods following the expiration of the period
during which the replaced Displaced Credits would have been available for use by
the Parent Group, provided, however, such Replacement Credits shall not replace
Displaced Credits

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which are taken into account with respect to a subsequent Tax year under this
paragraph (it being intended that a Parent Group Additional Tax Liability shall
not be deemed to result from both a Replacement Credit and the Displaced Credit
which it replaces). For each such Credit Deficiency Year, New Fluor shall pay to
Parent the amount of such Parent Group Additional Tax Liability, provided,
however, that in no event shall New Fluor be obligated hereunder to make
payments to Parent in excess of the aggregate New Fluor Group Tax Savings,
provided further, however, for purposes of this Section 2.01(b)(iii), the amount
of such New Fluor Group Tax Savings shall be adjusted, in accordance with the
provisions of Section 2.01(b)(iv). New Fluor's payment to Parent will be due
within 20 business days following Parent's written demand therefor, which shall
not be made earlier than the due date, determined without regard to extensions,
for the Parent Group's Federal Income Tax Return for the Credit Deficiency Year.
When making its demand for payment, Parent shall provide New Fluor with Parent's
computation, in reasonable detail, of the amount payable by New Fluor pursuant
to the provisions of this Section 2.01(b)(iii) together with such other
information reasonably necessary to allow New Fluor to verify that a payment is
due hereunder and the amount thereof. In addition to such payment, if New Fluor
does not make the payment due hereunder to Parent within 3 business days after
New Fluor's receipt of such written demand containing such computation and other
necessary information, then New Fluor shall also pay to Parent interest on such
payment amount at the Base Rate from the due date of such Tax Return to the date
of payment by New Fluor of the payment required hereunder. By way of
illustration (and not limitation) of the foregoing provisions, assume: (1) the
Distribution Date is November 30, 2000, and Parent files an Applicable
Consolidated Return for the Tax Period ending October 31, 2001 (the "2001
Period"); (2) the Parent Group has $40 Million of minimum tax credits available
for carryover into the 2001 Period; (3) but for the inclusion of the New Fluor
Group in the Applicable Consolidated Return for the 2001 Period, Parent would
have generated in the 2001 Period an additional $4 Million of minimum tax
credits available for carryover to subsequent Tax Periods; (4) as a result of
the inclusion of the New Fluor Group in the Applicable Consolidated Return for
the 2001 Period, the minimum tax credits generated by the Parent Group in the
2001 Period and available for carryover are reduced to $2 Million, thereby
resulting in an aggregate minimum tax credit of $42 Million available for
carryover to Tax Periods after the 2001 Period; (5) the Federal Income Tax
liability allocated to the New Fluor Group for the 2001 Period under this
Section 2.01 is $2 million less than the Federal Income Tax the New Fluor Group
would have incurred for the period November 1 through November 30, 2000 if it
had not been included in the Applicable Consolidated Return; (6) in the
subsequent two Tax Periods of the Parent Group (ending October 31 in the years
2002 and 2003), the Parent Group generates an additional $8 Million of minimum
tax credits available for carryover to subsequent Tax Periods, thereby resulting
in an aggregate minimum tax credit of $50 Million available for carryover to Tax
Periods ending after October 31, 2003; (7) in the 3 subsequent Tax Periods of
the Parent Group (ending October 31 in the years 2004, 2005 and 2006), the
Parent Group uses $50 Million of minimum tax credits to reduce its Federal
Income Tax liability in such Tax Periods and does not generate any further
minimum tax credits in such Tax Periods which are available for carryover to Tax
Periods after the Tax Period ending October 31, 2006; and (8) in the Tax Period
ending October 31, 2007 (the "2007 Period"), the Parent Group incurs a Federal
Income Tax liability of $2 Million which it would not have incurred if it had
use of the Displaced Credits. Under the circumstances described in the preceding
sentence, the New Fluor Group Tax Savings amount is $2 Million, the 2007 Period
is a Credit Deficiency Year, and, upon receipt of the

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Parent Group's written demand on or after the due date (without extension) for
the Parent Group's Federal Income Tax Return for the 2007 Period, New Fluor
shall be obligated to pay $2 Million to Parent within 20 business days following
New Fluor's receipt of such written demand. This paragraph shall also apply, and
New Fluor shall have identical rights and Parent shall have identical
obligations, inclusive of rights and obligations comparable to those provided
under Section 2.01(b)(iv), in the event that, as a result of the inclusion of
members of the New Fluor Group and members of the Parent Group in a consolidated
Federal Income Tax Return, the carryover credits otherwise generated by the New
Fluor Group and available as a carryover are reduced and the Parent Group
realizes a reduction in its Federal Income Tax liability for the Applicable Tax
Period on such consolidated Federal Income Tax Return.

                    (iv)   Further Provisions Regarding Compensation for Lost
                           Tax Credits.

                           (A)  This paragraph (iv)(A) applies if (1), as a
result of the inclusion of the New Fluor Group in an Applicable Consolidated
Return, (x) the amount of Federal Income Tax credits that are available to the
New Fluor Group as a carryover to Tax Periods following the Applicable Tax
Period exceeds (y) the amount of such credits that would have been available to
the New Fluor Group as a carryover to such subsequent Tax Periods had it not
been included in the Applicable Consolidated Return (the excess of the amount
described in the foregoing clause (x) over the amount described in the foregoing
clause (y) is referred to herein as the "Excess Credits"), and (2) in a
subsequent Tax year (an "Excess Credit Recovery Year") the Federal Income Tax
liability incurred by the New Fluor Group is reduced as a result of its use of
all or any portion of such Excess Credits, provided, however, for such purposes
such Excess Credits shall not be deemed to have been used until all other
Federal Income Tax credits available to the New Fluor Group in such Excess
Credit Recovery Year have been used (the amount of any such Federal Tax
reduction is referred to herein as an "Excess Credit Reduction"). Effective as
of the due date (determined without regard to extensions) for the New Fluor
Group's Federal Income Tax Return for such Excess Credit Recovery Year, the
amount of such Excess Credit Reduction shall be added to the then remaining New
Fluor Group Tax Savings (as previously adjusted under this Section 2.01(b)(iv),
if applicable), with such adjusted New Fluor Group Tax Savings to be the
limitation on New Fluor Group's payment obligations under Section 2.01(b)(iii).
Promptly after filing such Federal Income Tax Return, New Fluor shall notify
Parent of the amount added to the New Fluor Group Tax Savings, and shall provide
to Parent New Fluor's computation thereof (in reasonable detail) and such other
information reasonably necessary to allow Parent to verify such amount.

                           (B)  This paragraph (iv)(B) applies if (1) as a
result of the inclusion of the New Fluor Group in an Applicable Consolidated
Return, (x) the amount of Federal Income Tax credits that are available to the
New Fluor Group as a carryover to Tax Periods following the Applicable Tax
Period is less than (y) the amount of such credits that would have been
available to the New Fluor Group as a carryover to such subsequent Tax Periods
had it not been included in the Applicable Consolidated Return (the excess of
the amount described in the foregoing clause (y) over the amount described in
the foregoing clause (x) is referred to herein as the "Displaced NFG Tax
Credits"), and (2) in a subsequent Tax year (an "NFG Tax Credit Deficiency
Year") (x) the Federal Income Tax liability incurred by the New Fluor Group
exceeds (y) the amount of such Tax liability that the New Fluor Group would have
incurred if it had available to it as a carryover all or any portion of the
Displaced NFG Tax

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Credits, with such availability to be determined after giving effect to any
limitation on the use of the Displaced NFG Tax Credits, including without
limitation the number of Tax Periods to which the Displaced NFG Tax Credits
could have been carried under applicable Federal Income Tax Law (the excess of
the amount described in the foregoing clause (x) over the amount described in
the foregoing clause (y) is referred to herein as the "NFG Additional Tax
Amount"). For purposes of this paragraph, if, in a subsequent Tax year to which
Displaced NFG Tax Credits would have been available to carry, the New Fluor
Group does not incur an NFG Additional Tax Amount because the New Fluor Group
uses other Federal Income Tax credits which are actually available ("Replacement
NFG Credits"), such Replacement NFG Credits shall replace Displaced NFG Tax
Credits (on a dollar-for-dollar basis) and shall thereafter be treated as
Displaced NFG Tax Credits if and to the extent that the Replacement NFG Credits
(had they not been so used) would have been available for use by the New Fluor
Group for periods following the expiration of the period during which the
replaced Displaced NFG Tax Credits would have been available for use by the New
Fluor Group, provided, however, such Replacement NFG Credits shall not replace
Displaced NFG Tax Credits which are taken into account with respect to a
subsequent Tax year under this paragraph (it being intended that an NFG
Additional Tax Amount shall not be deemed to result from both a Replacement NFG
Credit and the Displaced NFG Tax Credit which it replaces). Effective as of the
due date (determined without regard to extensions) for the New Fluor Group's
Federal Income Tax Return for such NFG Tax Credit Deficiency Year, the amount of
the then remaining New Fluor Group Tax Savings (as previously adjusted under
this Section 2.01(b)(iv), if applicable) shall be reduced by such NFG Additional
Tax Amount, with such adjusted New Fluor Group Tax Savings to be the limitation
on New Fluor Group's payment obligations under Section 2.01(b)(iii). Promptly
after filing such Federal Income Tax Return, New Fluor shall notify Parent of
the amount subtracted from the New Fluor Group Tax Savings, and shall provide to
Parent New Fluor's computation thereof (in reasonable detail) and such other
information reasonably necessary to allow Parent to verify such amount.

               (v)   Payments Related to Displaced Tax Losses and Section 29
Credits. This paragraph applies if (A) as a result of including members of the
Parent Group and members of the New Fluor Group in a consolidated Federal Income
Tax Return for a Tax Period (such Tax Period, an "Applicable Tax Period," and
such return, an "Applicable Consolidated Return"), the Federal net operating
loss ("NOL") or other Federal losses generated by the Parent Group and available
(after taking into account any carryback of any such loss) as a carryover to a
subsequent Tax Period are less than such loss carryovers would be if such
members of the New Fluor Group had not been included in such Applicable
Consolidated Return (the excess of (1) the amount of losses that would have been
generated and available as a carryover if the New Fluor Group had not been
included in the Applicable Consolidated Return, over (2) the amount of such
losses generated and available as a carryover by the Parent Group is referred to
herein as the "Displaced Losses"); and (B) the use of the Displaced Losses in
the Applicable Consolidated Return prevents the use in the Applicable
Consolidated Return of credits under Code Section 29 that the New Fluor Group
would have used, if none of its members were included in the Applicable
Consolidated Return, in the Tax year including the portion of the Applicable Tax
Period for which members of the New Fluor Group are included in the Applicable
Consolidated Return (any such Section 29 credits, minus the amount of such
credits that, in effect, increase minimum tax credits of the New Fluor Group
under Code Section 53(d)(1)(B)(iii), "Displaced Section 29 Credits"). If the
preceding conditions (A) and (B) are satisfied, (i) the amount of Federal Income
Tax liability that otherwise would be allocated to New Fluor under this Section

                                       11
<PAGE>

2.01 for the Applicable Tax Period shall be reduced (for all purposes of this
Agreement) by the amount of Displaced Section 29 Credits, and (ii) New Fluor
shall pay to Parent, as provided in the next sentence, one or more amounts up to
an aggregate amount equal to 50% of the amount of Displaced Section 29 Credits
(the "Credit Sharing Amount"). If, in any one or more subsequent Tax years (each
a "Loss Deficiency Year"), the Parent Group would have been able to claim a
deduction for all or any portion of the Displaced Losses if the Displaced Losses
were available, with such availability to be determined after giving effect to
any limitation on the use of the Displaced Losses, including any limitation on
the number of Tax Periods to which the Displaced Losses could have been carried
under applicable Federal Income Tax Law, New Fluor shall pay to Parent, with
respect to each such Loss Deficiency Year, an amount equal to the product of (1)
the Credit Sharing Amount and (2) the ratio of (x) the amount of Displaced
Losses that the Parent Group would have been able to claim as a deduction for
the Loss Deficiency Year to (y) the total amount of Displaced Losses. New
Fluor's payment to Parent will be due within 20 business days following Parent's
written demand therefor, which shall not be made earlier than the due date,
determined without regard to extensions, for the Parent Group's Federal Income
Tax Return for the Loss Deficiency Year. When making its demand for payment,
Parent shall provide New Fluor with Parent's computation, in reasonable detail,
of the amount payable by New Fluor pursuant to the provisions of this Section
2.01(b)(v) together with such other information reasonably necessary to allow
New Fluor to verify that a payment is due hereunder and the amount thereof. In
addition to such payment, if New Fluor does not make the payment due hereunder
to Parent within 3 business days after New Fluor's receipt of such written
demand containing such computation and other necessary information, then New
Fluor shall also pay to Parent interest on such payment amount at the Base Rate
from the due date of such Tax Return to the date of payment by New Fluor of the
payment required hereunder. By way of illustration (and not limitation) of the
foregoing provisions, assume: (1) for the Applicable Tax Period the Federal
Without Amount is zero and the Parent Group has $8 Million of NOL that would,
but for the inclusion of the New Fluor Group in the Applicable Consolidated
Return for the Applicable Tax Period and after taking into account any carryback
of the NOL, be available for carryover to subsequent Tax Periods; (2) for the
portion of such Applicable Tax Period in which the New Fluor Group is included
in the Applicable Consolidated Return, the New Fluor Group has $8 Million of
taxable income and $2 Million of Section 29 Credits, resulting in a Tax
liability (at a 35% rate) of $2.8 Million before taking such credits into
account and a Tax liability of $800,000 after taking such credits into account
(in each case without taking into account the Parent Group's $8 Million NOL);
(3) based on the foregoing, (A) the Federal Income Tax Liability allocated to
New Fluor is $800,000 (rather than $2.8 Million), which is calculated by
reducing the $2.8 Million of Federal Income Tax Liability otherwise allocable to
New Fluor by the $2 Million of Section 29 Credits which would have been taken
into account but for the use of the Parent Group $8 Million NOL in the
Applicable Consolidated Return and which do not, in effect, increase minimum tax
credits of the New Fluor Group pursuant to Code Section 53(d)(1)(B)(iii), and
(B) the Parent Group has $8 Million of Displaced Losses; (4) in the Tax year
following the Applicable Tax Period ("Year 2"), the Parent Group has $8 Million
of taxable income against which all $8 Million of Displaced Losses could have
been used if they had not been displaced. Under the circumstances described in
the preceding sentence, the payment which New Fluor would make to Parent with
respect to Year 2 would be $1 Million (i.e., the entire Credit Sharing Amount of
50% of the Displaced Section 29 Credits). By way of further illustration, if the
facts were the same as in the foregoing illustration except that the Parent

                                       12
<PAGE>

Group has $4 Million of taxable income in each of the two subsequent years
("Year 2" and "Year 3") against which it could have used its Displaced Losses,
New Fluor would have a payment obligation of $500,000 under this paragraph with
respect to Year 2 ($1 Million Credit Sharing Amount multiplied by ($4 Million
divided by $8 Million) = $500,000) and a payment obligation of $500,000 under
this paragraph with respect to Year 3 ($1 Million Credit Sharing Amount
multiplied by ($4 Million divided by $8 Million) = $500,000).

               (vi)   This paragraph applies with respect to any period during
which (1) the sum of the New Fluor Group Tax Savings as determined under Section
2.01(b)(iii), as adjusted under Section 2.01(b)(iv), plus the Credit Sharing
Amount determined under Section 2.01(b)(v), exceeds $1,750,000 (such aggregate
amount, as adjusted from time to time, is referred to herein as the "Aggregate
Parent Recovery Amount"), and (2) neither Moody's Investors Services, Inc.
("Moody's") nor Standard & Poor's Ratings Services, a division of McGraw-Hill
Company ("S&P"), or any successor to either of them, issues or otherwise assigns
an investment grade credit rating to New Fluor. For this purpose, investment
grade means a rating of Baa-2 or higher by Moody's and BBB or higher by S&P.
Within 20 business days after the first day as of which both conditions
described in the foregoing clauses (1) and (2) are satisfied, New Fluor, unless
affirmatively waived by Parent, shall secure its obligation to make payments to
Parent pursuant to the provisions of Section 2.01(b)(iii) or Section 2.01(b)(v),
whichever may be applicable, through a letter of credit in favor of Parent
issued by a bank or other financial institution having reported assets of at
least $10 billion and approved by Parent, which approval shall not be
unreasonably withheld, with such letter of credit to have a face amount equal to
100% of the Aggregate Parent Recovery Amount, provided, however, such face
amount shall be reduced to the extent that the amount of the remaining balance
of the Aggregate Parent Recovery Amount is reduced by reason of payments
pursuant to Section 2.01(b)(iii), reduction adjustments under Section
2.01(b)(iv)(B) or payments pursuant to Section 2.01(b)(v), and such face amount
shall be increased to the extent the Aggregate Parent Recovery Amount is
increased under Section 2.01(b)(iv)(A). Such letter of credit shall remain in
effect or be renewed by New Fluor until the earlier of (x) the date as of which
the remaining balance of the Aggregate Parent Recovery Amount is less than
$1,750,000 or (y) the effective date as of which New Fluor regains an investment
grade credit rating, at which time such letter of credit shall no longer be
required and may be revoked, subject to reinstatement or replacement if and when
the two conditions described in the first sentence of this paragraph again
exist.

               (vii)  This paragraph applies if, as a result of the use in a
consolidated Federal Income Tax Return of an NOL or other loss of the Parent
Group that is not taken into account in computing the Federal With Amount, the
amount of Federal Income Tax liability allocated to New Fluor and paid by New
Fluor to Parent exceeds the amount of the actual Federal Income Tax liability
for the Tax Period (the "Initial Period") for which the consolidated Federal
Income Tax Return is filed (any such excess, the "Excess Payment Amount"). In
such case, the Excess Payment Amount (or pro rata portion thereof) shall be
compared to the amount of Federal Income Tax (the "Tax Detriment Amount")
incurred by the Parent Group, as a result of not having available such NOL or
other loss, for each Tax Period (an "Other Period") when such NOL or other loss
(or pro rata portion thereof) would have been used, either as a carryback or a
carryforward, had the NOL or other loss not been used in the consolidated
Federal Income Tax Return for the Initial Period. If the Excess Payment Amount
(or pro rata portion thereof) exceeds the Tax Detriment Amount for an Other
Period because the Federal With Amount for

                                       13
<PAGE>

the Initial Period was based on the regular tax rate but the Parent Group is
taxable at the alternative minimum tax rate for the Other Period, Parent shall
pay to New Fluor an amount equal to 50% of the difference between the Excess
Payment Amount and the Tax Detriment Amount; provided, however, that New Fluor
shall repay such amount to Parent if the Parent Group subsequently becomes
taxable at the regular tax rate for any Tax Period. If the Excess Payment Amount
(or pro rata portion thereof) is less than the Tax Detriment Amount for an Other
Period because the Federal With Amount was based on the alternative minimum tax
rate but the Parent Group is taxable at the regular tax rate for the Other
Period, New Fluor shall pay to Parent an amount equal to 50% of the difference
between the Excess Payment Amount and the Tax Detriment Amount. Any payment
under this paragraph will be due within 20 business days following the payee's
written demand therefor, which shall not be made earlier than the due date,
determined with regard to extensions, for (i) the Parent Group's Federal Income
Tax Return for the Other Period with respect to which the payment is to be made,
or (ii) if such Other Period precedes the Initial Period, the Initial Period, or
(iii) in the case of a repayment to Parent, the Parent Group's Tax Period for
which it becomes taxable at the regular tax rate. As soon as practicable after
the end of the applicable Tax Period described in the preceding sentence, Parent
shall provide New Fluor with Parent's computation, in reasonable detail, of the
amount payable by New Fluor or by Parent pursuant to the provisions of this
Section 2.01(b)(vii), together with such other information reasonably necessary
to allow New Fluor to verify that a payment is due hereunder and the amount
thereof. In addition to such payment, if the payor does not make the payment due
hereunder to the payee within 3 business days after the payee's receipt of the
written demand therefor, then the payor shall also pay to the payee interest on
such payment amount at the Base Rate from the due date (determined with regard
to extensions) of such Tax Return to the date of payment by the payor of the
payment required hereunder.

               (viii)  The parties agree and acknowledge that the provisions of
Sections 2.01(b)(iii) through 2.01(b)(vii) shall be applied after giving effect
to any adjustments resulting from any Adjustment Requests or Audit Adjustments.

         2.02  Allocation of State Income Taxes and Foreign Income Taxes.
Except as provided in Section 2.04 and subject to Section 3, State Income Taxes
and Foreign Income Taxes shall be allocated as follow:

               (a)  Separate Company Taxes. In the case of any State Income Tax
or Foreign Income Tax which is a Separate Company Tax, the Parent Group and the
New Fluor Group shall be allocated and liable for such Tax imposed on any member
or members of their respective Groups, but only for such periods as such
membership existed. For such purposes, the parties agree that New Fluor shall be
allocated and liable for all State Income Taxes and Foreign Income Taxes of
Parent with respect to all Tax Periods (or portions thereof) through the
Distribution Date, provided further, however, for such purposes any Tax Period
of Parent that includes but does not end on the Distribution Date shall be
treated as ending on the Distribution Date, with New Fluor to be allocated and
liable for only the State Income Tax liability or Foreign Income Tax liability
(as applicable) with respect to the Tax Items apportioned to the portion of such
Tax Period through the Distribution Date in accordance with the principles of
Section 3. All such Separate Company Taxes shall be paid by the party to whom
they are allocated hereunder in accordance with the provisions of Section 5.

                                       14
<PAGE>

               (b)  Consolidated or Combined Taxes. In the case of any State
Income Tax or Foreign Income Tax which is a Consolidated or Combined Tax, the
liability of the parties with respect to such Tax for any Tax Period shall be
computed and allocated as follows:

                    (i)   Allocation of Tax. For any relevant taxable year
beginning after October 31, 2000, (1) the Consolidated or Combined State Income
Tax or Foreign Income Tax (whichever may be applicable) for the entire taxable
year shall be computed by excluding the New Fluor Group (the "State/Foreign
Without Amount") and (2) the Consolidated or Combined State Income Tax or
Foreign Income Tax (whichever may be applicable) for the entire taxable year
shall be computed by including the New Fluor Group (but only for the portion of
such taxable year during which the New Fluor Group is included in the
Consolidated or Combined Tax Return) but without taking into account losses or
other deductions or credits of the Parent Group not used in calculating the
State/Foreign Without Amount and losses or other deductions or credits of the
New Fluor Group not used in the Consolidated or Combined Tax Return, whether any
such losses, deductions or credits of the Parent Group or the New Fluor Group
arise in such taxable year or are carried forward or back from another taxable
year (the "State/Foreign With Amount"). The Parent Group shall be allocated and
liable for the State/Foreign Without Amount. New Fluor shall be allocated and
liable for the excess, if any, of the State/Foreign With Amount over the
State/Foreign Without Amount. If the State/Foreign With Amount exceeds the
State/Foreign Without Amount, New Fluor shall pay the excess amount to Parent in
accordance with the provisions of Section 5. If the State/Foreign With Amount is
less than the State/Foreign Without Amount, Parent shall pay the amount of the
difference to New Fluor in accordance with the provisions of Section 5.
Notwithstanding the foregoing, with respect to any Tax Period ending after
October 31, 2000 and on or before October 31, 2001, (i) the amount of
Consolidated or Combined State Income Tax or Foreign Income Tax allocated to,
and payable by, the Parent Group shall be zero in the case of any jurisdiction
where no member of the Massey Group would be subject to State Income Tax or
Foreign Income Tax, as applicable, but for (A) affiliation with one or more
members of the New Fluor Group prior to the Distribution, or (B) affiliation
with Parent following the Distribution, provided, however, this clause (B) shall
not apply if and to the extent that such State Income Tax or Foreign Income Tax
is attributable to operations or activities in which Parent engages following
the Distribution; (ii) in the case of any jurisdiction where no member of the
New Fluor Group would be subject to State Income Tax but for affiliation with
one or more members of the Massey Group prior to the Distribution, the amount of
Consolidated or Combined State Income Tax in such jurisdiction that is allocable
to the New Fluor Group shall be 50% of the amount otherwise allocable under the
foregoing provisions of this Section 2.02(b)(i), in which case the remaining 50%
shall be allocable to and paid by Parent; and (iii) Parent shall be allocated
and shall pay 50% of the excess (if any) of (A) the amount of Kentucky, Virginia
and West Virginia State Income Taxes that are otherwise allocable to the New
Fluor Group under the foregoing provisions of this Section 2.02(b)(i), over (B)
the amount of Kentucky, Virginia and West Virginia State Income Taxes that would
have been incurred by the members of the New Fluor Group had the New Fluor Group
(or any members thereof) filed State Separate Company Income Tax Returns in such
States on a basis consistent with the State Separate Company Income Tax Returns
(if any) filed by such New Fluor Group members in such States prior to the
Distribution.

                    (ii)  Allocation of Combined or Consolidated State Income
Tax and Foreign Income Tax Adjustments. If there is any Audit Adjustment to any
Tax Item for any

                                       15
<PAGE>

relevant Tax Period beginning after October 31, 2000, the State/Foreign With
Amount and the State/Foreign Without Amount shall be recalculated, in accordance
with the principles of Section 2.02(b)(i), to reflect such Audit Adjustment.
With respect to each such recalculation, New Fluor shall be allocated and liable
for, and shall pay to Parent in accordance with the provisions of Section 5, the
amount described in whichever one (but not more than one) of the following three
clauses is applicable:  (1) the amount by which the excess of the State/Foreign
With Amount over the State/Foreign Without Amount as recalculated is greater
than such excess as previously (and most recently) calculated under this Section
2.02(b), (2) the amount by which the excess of the State/Foreign Without Amount
over the State/Foreign With Amount as recalculated is less than such excess as
previously (and most recently) calculated or (3) the sum of the excess of the
State/Foreign With Amount over the State/Foreign Without Amount as recalculated
plus the excess of the State/Foreign Without Amount over the State/Foreign With
Amount as previously (and most recently) calculated.  With respect to each such
recalculation, Parent shall be allocated and liable for, and shall pay to New
Fluor in accordance with the provisions of Section 5, the amount described in
whichever one (but not more than one) of the following three clauses is
applicable:  (1) the amount by which the excess of the State/Foreign With Amount
over the State/Foreign Without Amount as recalculated is less than such excess
as previously (and most recently) calculated under this Section 2.02(b), (2) the
amount by which the excess of the State/Foreign Without Amount over the
State/Foreign With Amount as recalculated is greater than such excess as
previously (and most recently) calculated, or (3) the sum of the excess of the
State/Foreign Without Amount over the State/Foreign With Amount as recalculated
plus the excess of the State/Foreign With Amount over the State/Foreign Without
Amount as previously (and most recently) calculated.  The parties agree and
understand that their respective obligations to make payments hereunder
resulting from Audit Adjustments shall apply in circumstances wherein there is
no additional net Tax liability payable to a Tax Authority attributable to the
adjustment of one or more Tax Items on the applicable Tax Return but the Audit
Adjustments result in changes to the State/Foreign With Amount and/or
State/Foreign Without Amount as recalculated to reflect such Audit Adjustments.
Notwithstanding the foregoing, with respect to any Tax Period ending after
October 31, 2000 and on or before October 31, 2001, (i) the amount of
Consolidated or Combined State Income Tax or Foreign Income Tax allocated to,
and payable by, the Parent Group shall be zero in the case of any jurisdiction
where no member of the Massey Group would be subject to State Income Tax or
Foreign Income Tax, as applicable, but for (A) affiliation with one or more
members of the New Fluor Group prior to the Distribution, or (B) affiliation
with Parent following the Distribution, provided, however, this clause (B) shall
not apply if and to the extent that such State Income Tax or Foreign Income Tax
is attributable to operations or activities in which Parent engages following
the Distribution; (ii) in the case of any jurisdiction where no member of the
New Fluor Group would be subject to State Income Tax but for affiliation with
one or more members of the Massey Group prior to the Distribution, the amount of
Consolidated or Combined State Income Tax in such jurisdiction that is allocable
to the New Fluor Group shall be 50% of the amount otherwise allocable under the
foregoing provisions of this Section 2.02(b)(ii), in which case the remaining
50% shall be allocable to and paid by Parent; and (iii) Parent shall be
allocated and shall pay 50% of the excess (if any) of (A) the amount of
Kentucky, Virginia and West Virginia State Income Taxes that are otherwise
allocable to the New Fluor Group under the foregoing provisions of this Section
2.02(b)(ii), over (B) the amount of Kentucky, Virginia and West Virginia State
Income Taxes that would have been incurred by the members of the New Fluor

                                       16
<PAGE>

Group had the New Fluor Group (or any members thereof) filed State Separate
Company Income Tax Returns in such States on a basis consistent with the State
Separate Company Income Tax Returns (if any) filed by such New Fluor Group
members in such States prior to the Distribution.

         2.03  Allocation of Other Taxes. Except as provided in Section 2.04,
all Taxes other than those allocated pursuant to Sections 2.01 and 2.02, (herein
"Other Taxes") shall be allocated to the legal entity on which the legal
incidence of the Other Tax is imposed. For such purposes, the parties agree that
New Fluor shall be allocated and liable for all such Other Taxes imposed on
Parent with respect to all Tax Periods (or portions thereof) through the
Distribution Date, provided further, however, for such purposes any Tax Period
of Parent that includes but does not end on the Distribution Date shall be
treated as ending on the Distribution Date, with New Fluor to be allocated and
liable for only (1) the Other Tax liability with respect to the Tax Items
apportioned to the portion of such Period through the Distribution Date in
accordance with the principles of Section 3, and (2) the Other Tax liability
with respect to Tax Items apportioned to the portion of the Period after the
Distribution Date to the extent that such Other Tax liability would not have
been incurred absent the activities or existence of Parent during such portion
of the Period through the Distribution Date. As between the parties to this
Agreement, New Fluor shall be allocated and liable for all Other Taxes imposed
on any member of the New Fluor Group and, except as expressly provided otherwise
in the immediately preceding sentence with respect to Other Taxes imposed on
Parent with respect to portions of a Tax Period through the Distribution Date,
Parent shall be allocated and liable for all Other Taxes imposed on any member
of the Parent Group. The Companies believe that there is no Other Tax not
allocated pursuant to this Section 2.03 which is legally imposed on more than
one legal entity (e.g., joint and several liability); provided, however, if
there is any such Other Tax, it shall be allocated in accordance with past
practices as reasonably determined by the affected Companies, or in the absence
of such practices, in accordance with any allocation method agreed upon by the
affected Companies, it being agreed that "with and without" principles
comparable to those described in Sections 2.01 and 2.02 will be applied unless
to do so would be clearly inequitable. All such Other Taxes shall be paid by the
party to whom they are allocated hereunder in accordance with the provisions of
Section 5.

         2.04  Transaction Taxes and Certain Other Taxes.

               (a)  General Allocations of Tax Liabilities.

                    (i)   Except as otherwise provided in this Section 2.04, New
Fluor shall be liable for and obligated hereunder to pay 60%, and Parent shall
be liable for and obligated hereunder to pay 40%, of any liability for Taxes
imposed on any member of the Parent Group or the New Fluor Group as a result of
or with respect to any of the Transactions, including, without limitation, any
Tax resulting from any income or gain recognized as a result of any of the
Transactions, but excluding any Tax resulting from any income or gain recognized
under Treasury Regulation Sections 1.1502-13 or 1.1502-19 (or any corresponding
provisions of other applicable Tax Laws) as a result of, but not generated by,
the Transactions.

                    (ii)  Except to the extent provided otherwise under Sections
2.04(b) and 2.04(d), if, pursuant to applicable Federal Income Tax Laws or State
Income Tax Laws, the Distribution does not qualify for tax-free treatment under
Code Section 355 and/or comparable

                                       17
<PAGE>

State Income Tax Laws and as a result the Distribution is treated for Income Tax
purposes as a taxable transaction with respect to which Parent is required to
recognize taxable income, the resulting Tax liability shall be allocated 40% to
Parent and 60% to New Fluor.

                    (iii)  Notwithstanding the provisions of Section 2.04(a)(i),
New Fluor shall be liable for and obligated hereunder to pay 100% of any sales,
use, gross receipts or other transfer Taxes imposed on or with respect to any
transfers occurring pursuant to the Transactions.

                    (iv)   Notwithstanding the provisions of Section 2.04(a)(i)
or any other provision of this Agreement, there shall be allocated to New Fluor,
and New Fluor shall be liable to the Parent Group for, any Specified State Taxes
(as defined herein) that otherwise would be allocable under Sections 2.02 and/or
2.03 of this Agreement to the Parent Group (including Specified State Taxes
arising in Tax Periods beginning after the Distribution Date) to the extent that
the aggregate amount of such Specified State Taxes exceeds the aggregate amount
of such Specified State Taxes that members of the Massey Group would have
incurred if the Transactions had not occurred (such excess, the "Incremental
Taxes"), provided, however, that (i) the liability of New Fluor under this
Section 2.04(a)(iv) shall be limited to the first $1 Million of Incremental
Taxes plus 50% of the next $2 Million of Incremental Taxes, for a total
potential liability of $2 Million of Incremental Taxes, and (ii) New Fluor shall
not be liable under this Section 2.04(a)(iv) for Incremental Taxes attributable
to or imposed as a result of operations or activities in which Parent engages
following the Distribution. As used herein the term "Specified State Taxes"
shall mean (A) State Income Taxes, State franchise Taxes (whether based on
income or capital, including without limitation West Virginia franchise Taxes)
and Kentucky license Taxes; and (B) all other State Taxes, provided, however,
that in the case of State Taxes not described in clause (A), only 50% of the
excess of such State Taxes over the amount of such State Taxes that members of
the Massey Group would have incurred if the Transactions had not occurred are to
be treated as Incremental Taxes; and provided further, the term Specified State
Taxes shall not mean or include State Taxes the allocation and liability for
which is determined pursuant to the provisions of Section 2.04(a)(ii), Section
2.04(a)(iii), Section 2.04(b), Section 2.04(c) or Section 2.04(d). The parties
intend and agree that (A) Parent shall be liable for and obligated to pay all
Incremental Taxes otherwise allocated to Parent under this Agreement other than
the $2,000,000 of Incremental Taxes allocated to New Fluor hereunder, and (B)
the provisions of Section 2.04(a)(i) shall not apply to Incremental Taxes.

               (b)  Certain Other Allocations.

                    (i)    New Fluor shall be allocated, and shall be solely
liable and obligated hereunder to pay, any liability for any Restructuring Tax
to the extent that such liability arises from: (A) any breach of New Fluor's
covenants under Section 11 or under the Distribution Agreement, or (B) the
material inaccuracy of factual statements or representations made with respect
to members of the New Fluor Group in the Ruling Request, but only to the extent
that (1) such inaccuracy arises from facts in existence prior to the
Distribution Date and (2) Parent has actual knowledge of such inaccuracy as of
the Distribution Date.

                    (ii)   Parent shall be allocated, and shall be solely liable
and obligated hereunder to pay, any liability for any Restructuring Tax to the
extent that such liability arises

                                       18
<PAGE>

from: (A) any breach of Parent's covenants under Section 11 or under the
Distribution Agreement; or (B) the material inaccuracy of factual statements or
representations made with respect to members of the Massey Group in the Ruling
Request, but only to the extent that (1) such inaccuracy arises from facts in
existence prior to the Distribution Date and (2) A.T. Massey has actual
knowledge of such inaccuracy as of the Distribution Date.

               (c)  Tax Liability in Connection with Appalachian Synfuel, LLC.
Parent shall be allocated and shall be solely liable hereunder for all Taxes
which arise in connection with, or as a result of (i) the transfer (by sale,
dividend or otherwise) by Fluor Enterprises, Inc., a member of the New Fluor
Group ("FEI"), of all or part of its ownership interest in Appalachian Synfuel,
LLC to Parent or to a member or members of the Parent Group or to an entity in
which Parent or a member or members of the Parent Group have an equity interest,
or as otherwise directed by Parent, or (ii) a liquidation or redemption of FEI's
interest in Appalachian Synfuel, LLC (all such Taxes allocated hereunder to
Parent shall be referred to herein as "ASLLC Transfer Taxes"). Such ASLLC
Transfer Taxes shall include, without limitation, Taxes resulting from FEI's
deferred intercompany gain which arises in connection with such transfer,
liquidation or redemption. For purposes of implementing the foregoing provisions
of this Section 2.04(c), the parties agree that the gain or income to which such
ASLLC Transfer Taxes are attributable shall be treated as the gain or income of
the Parent Group (and not of the New Fluor Group) for purposes of calculating
the Federal With and Without Amounts and the State/Foreign With and Without
Amounts under Section 2.01(b)(i) and Section 2.02(b)(i), respectively.

               (d)  Allocation of Tax Incurred Pursuant to Code Section 355(e).
If Parent incurs a Restructuring Tax liability as a result of the application of
the provisions of Code Section 355(e) and/or a comparable State Income Tax Law
(or comparable provisions of successor Federal or State Income Tax Laws), Parent
shall be allocated and solely liable hereunder to pay 100% of such Restructuring
Tax liability if it is incurred because of a plan (or series of related
transactions) pursuant to which one or more persons acquire, directly or
indirectly, stock or assets representing a 50% or greater interest (within the
meaning of Code Section 355(e) or such comparable or successor Tax Laws) in
Parent. New Fluor shall be allocated and solely liable hereunder to pay 100% of
such Restructuring Tax liability if it is incurred because of a plan (or series
of related transactions) pursuant to which one or more persons acquire, directly
or indirectly, stock or assets representing a 50% or greater interest (within
the meaning of Code Section 355(e) or such comparable or successor Tax Laws) in
New Fluor. For purposes of this Section 2.04(d), the value of any Tax Benefits
used or lost by reason of Parent's recognition of gain under Code Section 355(e)
or such comparable or successor Tax Laws will be treated as a Restructuring Tax
liability.

               (e)  Payment. All Tax liabilities allocated pursuant to the
foregoing provisions of this Section 2.04 shall be paid by the party to whom
they are allocated in accordance with the provisions of Section 5.

          Section 3.  Proration of Taxes for Straddle Periods. In the case of
any Straddle Period for which a Consolidated or Combined Tax Return is filed (a
"Straddle Period Consolidated or Combined Tax Return"), Tax Items of the members
of the Group which are included for only a portion of the Straddle Period (the
"Short Period Group") shall be apportioned between (i) the portion of such
Straddle Period during which such Short Period Group members are so included

                                       19
<PAGE>

and (ii) the portion of such Straddle Period during which such Short Period
Group members are not so included. This apportionment shall be in accordance
with the principles of Treasury Regulation Section 1.1502-76(b) as reasonably
interpreted and applied by the Companies. In the case of any Federal or State
Income Tax Return which is a Straddle Period Consolidated or Combined Tax Return
as to which the New Fluor Group is the Short Period Group, if so requested by
New Fluor, Parent (and to the extent required, other members of the Parent
Group) shall make or, if applicable, join with any necessary or appropriate
members of the New Fluor Group in making, an election under Treasury Regulation
Section 1.1502-76(b)(2)(ii)(D), or comparable State Tax Law, to have the Tax
Items (other than extraordinary items) of the New Fluor Group ratably allocated.
If the Distribution date is not an Accounting Cutoff Date, the provisions of
Treasury Regulations Section 1.1502-76(b)(2)(iii) and comparable State Tax Law
shall be applied to ratably allocate the items (other than extraordinary items)
for the month which includes the Distribution Date.

     Section 4.  Preparation and Filing of Tax Returns.

     4.01  General.  Except as otherwise provided in this Section 4, Tax Returns
shall be prepared and filed when due (including extensions) by the person
obligated to file such Tax Returns under the Code or applicable Tax Law.  Each
Company shall assist and cooperate (and shall cause its Affiliates to do
likewise) with the other Company in accordance with Section 7 with respect to
the preparation and filing of Tax Returns, including providing information
required to be provided in Section 7. Except as otherwise provided herein,
neither Company shall amend a Tax Return for which the other Company has
responsibility pursuant to this Section 4 unless written consent (which shall
not be unreasonably withheld) to such amended return is secured from the other
Company before the amended return is filed.

     4.02  New Fluor's Responsibility.  New Fluor has the exclusive obligation
and right to prepare and/or file (as specified hereinbelow) the following Tax
Returns (including original and amended returns and refund claims) or to cause
such Tax Returns to be prepared and filed:

           (a)  Prepare and file Consolidated or Combined Tax Returns for all
Tax Periods ending on or before October 31, 2000;

           (b)  Prepare and file Separate Company Tax Returns for any member or
members of the New Fluor Group;

           (c)  Prepare and file all Tax Returns, for periods ending on or after
October 31, 2000, for Massey Coal Company, a Delaware limited partnership that
will be wholly-owned by members of the New Fluor Group following the
Distribution; and

           (d)  Prepare, for filing by Parent, the Consolidated or Combined
State Income Tax Returns for the Applicable States (as defined herein) for Tax
Periods beginning on or after November 1, 2000 and ending on or before October
31, 2001 (the "Applicable State Consolidated or Combined Tax Returns"). As used
herein the term "Applicable States" means Alaska, Arizona, California, Illinois,
Minnesota, Nebraska and South Carolina.

     In preparing any such Consolidated or Combined Tax Returns described in
Section 4.02(a), New Fluor shall accept the pro forma Tax returns, Tax
workpapers and other

                                       20
<PAGE>

Tax Item positions and calculations that pertain exclusively to the Massey Group
as prepared and furnished to New Fluor by A.T. Massey or (after the Distribution
Date) by Parent, provided that such materials are prepared in accordance with
the requirements of Sections 4.04 and 4.05, and provided further, that New Fluor
shall not be obligated to report any Tax Item as proposed by A.T. Massey or
Parent (whichever is applicable) if New Fluor believes in good faith that there
is no reasonable basis for the tax treatment of such Tax Item as proposed by
A.T. Massey or by Parent (whichever is applicable), provided, however, if such
Tax Item relates to a tax shelter as defined in Code Section 6662(d)(2)(C), New
Fluor shall not be obligated to report such Tax Item as proposed by A.T. Massey
or Parent (whichever is applicable) if New Fluor reasonably concludes that it is
more likely than not that the tax treatment of such Tax Item as proposed by A.T.
Massey or Parent (whichever is applicable) does not comply with applicable Tax
Laws.

     4.03  Parent's Responsibility. Parent has the exclusive obligation and
right to  prepare and/or file (as specified hereinbelow) the following Tax
Returns (including original and amended returns and refund claims) or to cause
such Tax Returns to be prepared and filed:

           (a) Prepare and file Consolidated or Combined Tax Returns for all Tax
Periods beginning on or after November 1, 2000, provided, however, in the case
of the Applicable State Consolidated or Combined Tax Returns, such Returns shall
be prepared by New Fluor pursuant to Section 4.02(d) and Parent shall file such
Returns as submitted by New Fluor to Parent; and

           (b) Prepare and file Separate Company Tax Returns for any member or
members of the Parent Group.

     In preparing any such Consolidated or Combined Tax Returns described in
Section 4.03(a), other than Applicable State Consolidated or Combined Tax
Returns, Parent shall accept the pro forma Tax Returns, Tax workpapers and other
Tax Item positions and calculations that pertain exclusively to the New Fluor
Group as prepared and furnished to Parent by New Fluor, provided that such
materials are prepared in accordance with the requirements of Sections 4.04 and
4.05, and provided further, that Parent shall not be obligated to report any Tax
Item as proposed by New Fluor if Parent believes in good faith that there is no
reasonable basis for the tax treatment of such Tax Item as proposed by New
Fluor, provided, however, if such Tax Item relates to a tax shelter as defined
in Code Section 6662(d)(2)(C), Parent shall not be obligated to report such Tax
Item as proposed by New Fluor if Parent reasonably concludes that it is more
likely than not that the tax treatment of such Tax Item as proposed by New Fluor
does not comply with applicable Tax Laws.

     4.04  Tax Accounting Practices and Tax Elections.

           (a) General Rule.  Except as otherwise provided in this Section 4.04,
Consolidated or Combined Tax Returns shall be prepared in accordance with past
Tax accounting practices used and past Tax elections made with respect to such
Tax Returns (unless such past practices or elections are no longer permissible
under the Code or other applicable Tax Law) and, to the extent any items are not
covered by past practices or elections (or, in the event such past practices or
elections are no longer permissible under the Code or other applicable Tax Law),
in accordance with reasonable Tax accounting practices and elections selected by
(i) New

                                       21
<PAGE>

Fluor, to the extent such election applies solely to members of the New Fluor
Group, (ii) Parent, to the extent such election applies solely to members of the
Parent Group, or (iii) in the case of any election not described in the
foregoing clause (i) or clause (ii), the agreement of Parent and New Fluor (or
pursuant to Section 15 if no such agreement is reached). Without limitation on
the foregoing, the parties agree that, for purposes of the consolidated Federal
Income Tax Return to be filed by Parent for the Tax Period ending October 31,
2001 (A) Parent shall, at the request of New Fluor, make any election that does
not adversely affect to a material degree any member of the Parent Group (as
determined by Parent), and (B) Parent shall be entitled to make any other
election that does not adversely affect to a material degree any member of the
New Fluor Group (as determined by New Fluor).

          (b)  Reporting Transaction Tax Items. The Tax treatment reported on
Tax Returns of Tax Items relating to the Transactions shall be consistent with
the treatment of such items in the Ruling, unless such treatment is not
permissible under the Code. To the extent there is a Tax Item relating to the
Transactions which is not covered by the Ruling, the Companies shall agree on
the Tax treatment of any such Tax Item reported on any Tax Return. For this
purpose, the Tax treatment of such Tax Item on a Tax Return shall be determined
by the Responsible Company with respect to such Tax Return and shall be agreed
to by the other Company unless either (i) there is no reasonable basis for such
Tax treatment, or (ii) such Tax treatment is inconsistent with the Tax treatment
contemplated in the Ruling Request or the Ruling. Such Tax Return shall be
submitted for review pursuant to Section 4.06(a), and any dispute regarding such
proper Tax treatment shall be referred for resolution pursuant to Section 15
sufficiently in advance of the filing date of such Tax Return (including
extensions) to permit the timely filing of the Tax Return.

     4.05  Consolidated or Combined Tax Returns. Neither Company shall elect or
join, and shall cause their respective Affiliates not to elect or join, in
filing consolidated, unitary, combined, or other similar joint Tax Returns with
any member of the other Group, except to the extent that the filing of such Tax
Returns is consistent with past reporting practices or, in the absence of
applicable past practices, is required by Tax Law; provided, however, that the
Companies shall (to the extent permitted by Law) elect or join, or cause their
respective Affiliates to elect or join, in filing consolidated, combined or
unitary Tax Returns in Virginia, West Virginia, and Kentucky if and to the
extent necessary to permit members of the Massey Group who previously have filed
consolidated, combined or unitary returns in such states to continue to do so.

     4.06  Right to Review Tax Returns.

           (a) General. In the case of any Tax Return which relates to any
extent to (i) Taxes for which the Other Company may be liable in whole or in
part or (ii) a Tax Benefit to which the Other Company may be entitled in whole
or in part, the Responsible Company shall, at least 30 days prior to the filing
of any such Tax Return, make such Tax Return and related work papers available
for review by the Other Company. The Other Company shall be entitled to provide
written comments to the Responsible Company with respect to any items covered by
any such Tax Return which the Other Company determines are not being properly
reported in whole or in part and/or are not being reported in a manner
consistent with the provisions of this Agreement, and, in any such case, the
Companies shall attempt in good faith to resolve any

                                       22
<PAGE>

disagreement with respect to any such items prior to the filing of such Tax
Return. If the parties are not able to reach an agreement with respect to any
such item prior to the filing of such Tax Return, such dispute shall be subject
to the provisions of Section 15, provided, however, that the Responsible Company
shall be entitled to file such Tax Return reflecting such item as reasonably
determined by the Responsible Company, provided further, however, such
determination must be consistent with the provisions of this Agreement, and if,
following the filing of such Tax Return, the Accounting Firm shall determine
that the item in dispute was not reflected in such Tax Return in a manner
consistent with applicable Tax Law and the provisions of this Agreement, the
Responsible Company shall be obligated, unless agreed otherwise by the Other
Company in writing, to file an amended Tax Return reflecting the items as
determined by the Accounting Firm.

          (b)  Execution of Returns Prepared by Other Party. In the case of any
Tax Return which is required to be prepared and filed by one Company under this
Agreement and which is required by law to be signed by another Company or a
member of such other Company's Group (or by an authorized representative
thereof), the Company (or such member) which is legally required to sign such
Tax Return shall not be required under this Agreement to sign such Tax Return
if, with respect to any material Tax Item, such Company believes in good faith
that there is no reasonable basis for the tax treatment of such Tax Item as
proposed to be reported on the Tax Return.

     4.07  Section 732(f) Elections. The parties agree and acknowledge that as
of October 31, 2000, all of the stock of A.T. Massey was distributed by Fluor
Management Company, a Delaware general partnership ("FMC"), to Allegheny Coal
Corporation, a Delaware corporation ("Allegheny") and St. Joe Carbon Fuels
Corporation, a Delaware corporation ("SJCF"), each of which was a member of the
New Fluor Group and a partner of FMC at the time of such distribution of the
A.T. Massey stock. The parties further agree that New Fluor and Parent shall
make and take, and each of them shall cause their respective Affiliates to make
and take, such elections and actions as may be reasonably necessary to cause the
provisions of Code Section 732(f) (and any corresponding provision of State Tax
Law) to be inapplicable with respect to or as a result of such distribution of
the A.T. Massey stock. Without limitation on the foregoing, the parties agree as
follows:

           (a) On the consolidated Federal Income Tax Return of Parent for the
Tax year ending October 31, 2000, Parent and, to the extent required by
applicable Tax Law, Allegheny and SJCF or their successors in interest, shall
make an election to have the transitional rule of Section 538(b)(2) of Public
Law 106-170 apply to FMC's distribution of the A.T. Massey stock (such election,
a "Section 732(f) Election"); and

           (b) Parent and, to the extent required by applicable Tax Law,
Allegheny and SJCF or their successors in interest, also shall make a Section
732(f) Election on the consolidated Federal Income Tax Return filed by Parent
for the Tax year ending October 31, 2001.

     4.08  Section 382 Items. At the request of New Fluor, Parent shall make
(or, to the extent applicable, join with members of the New Fluor Group in
making) an election, under Treasury Regulation Section 1.1502-95(c)(1) and any
comparable State Tax Law, to apportion to New Fluor, or to such subsidiary or
subsidiaries of New Fluor as New Fluor may direct, the

                                       23
<PAGE>

consolidated section 382 limitation (or subgroup section 382 limitation) and net
unrealized built-in gain (or subgroup net unrealized built-in gain) as of the
Distribution Date for the consolidated Federal Income Tax Return group which has
Parent as its common parent, but only to the extent any such limitation and
built-in gain resulted from an "ownership change" (within the meaning of Code
Section 382) of one or more members of the New Fluor Group (including any
predecessor of such a member). New Fluor shall furnish, or cause to be
furnished, to Parent such information as is required by Parent for purposes of
making this election.

           Section 5.  Tax Liability Payments and Tax Benefit Payments.

     5.01  Payment of Taxes With Respect to Consolidated or Combined Tax Returns
Filed After the Distribution Date. In the case of any Consolidated or Combined
Tax Returns for which the due date (including extensions) is after the
Distribution Date:

           (a) Computation and Payment of Tax Due. Subject to the provisions of
Section 4.06, at least three business days prior to any Payment Date pertaining
to such a Tax Return the Responsible Company shall compute the amount of Tax
required to be paid on such Payment Date to the applicable Tax Authority with
respect to such Tax Return (whether for estimated Tax, a request for an
extension of the time to file or the original Tax Return for the Tax Period) and
shall notify the Other Company of its allocable share of such Tax as determined
in accordance with the provisions of this Agreement, including, without
limitation, the provisions of Sections 4.04 and 4.05. On or before such Payment
Date, the Responsible Company shall pay such Tax to the applicable Tax Authority
(whether or not it has theretofore received, pursuant to Section 5.01(b),
payment from the Other Company of its allocable share of such Tax payment).

           (b) Payments With Respect to Allocations of Tax Liabilities. Within
five business days following the applicable Payment Date, the Other Company
shall pay to the Responsible Company the excess (if any) of (i) the portion of
the Tax liability determined as of such Payment Date with respect to the
applicable Tax Period that is allocable to the Other Company as determined by
the Responsible Company in accordance with the provisions of this Agreement (the
"Allocated Tax Liability"), over (ii) the cumulative net payment with respect to
such Tax Period made prior to such Payment Date by the Other Company (the
"Cumulative Tax Payment"). The Other Company also shall pay to the Responsible
Company, together with the Tax liability payment required hereunder, interest
thereon at the Base Rate calculated from the Payment Date to the date of the
Other Company's payment hereunder to the Responsible Company. If the Other
Company's Cumulative Tax Payment is in excess of the Other Company's Allocated
Tax Liability for such Tax Period as of such Payment Date (such excess, the
"Other Company Overpayment"), then within 20 business days following each date
(herein the "Overpayment Tax Benefit Date") as of which the Responsible Company
receives any Tax refund and/or is credited with or otherwise receives any Tax
reduction which is attributable to all or any portion of the Other Company
Overpayment, the Responsible Company shall pay to the Other Company the amount
of such Tax refund, credit or reduction that is attributable to the Other
Company Overpayment. If the Responsible Company does not make the foregoing
payment within 3 business days following the Overpayment Tax Benefit Date, then
the Responsible Company also shall pay to the Other Company, together with the
foregoing payment required hereunder, interest thereon calculated at the Base
Rate from the Overpayment Tax

                                       24
<PAGE>

Benefit Date to the date of the Responsible Company's payment hereunder to the
Other Company.

     5.02  Payments Resulting From Audit Adjustments. In the event that, as a
result of an audit or examination by any Tax Authority, there are Audit
Adjustments of one or more Tax Items on a Consolidated or Combined Tax Return,
whether or not such Audit Adjustments result in an additional Consolidated or
Combined Tax liability being imposed, assessed or agreed to with respect to the
Tax Period covered by such Tax Return (a "Tax Underpayment Liability"), the
parties agree that the allocation of each party's share of the liability for
such Consolidated or Combined Tax liability as so adjusted, including any Tax
Underpayment Liability and the Consolidated or Combined Tax liability as
previously (and most recently) adjusted and allocated (collectively, the
"Adjusted Consolidated or Combined Tax Liability"), shall be redetermined and
reallocated in accordance with the With/Without Allocation Method of Section
2.01 or Section 2.02 and subject to the provisions of Section 2.04 and Section 3
(whichever of such Sections may be applicable and to the extent thereof) and
giving effect to such Audit Adjustments. The Company which is the Responsible
Company with respect to such Tax Return (i) shall, if there is a Tax
Underpayment Liability, pay such Tax Underpayment Liability to the applicable
Tax Authority on or before the applicable payment date therefor, and (ii) shall
compute and determine the allocation or reallocation of the Adjusted
Consolidated or Combined Tax Liability as hereinabove provided. As soon as
practicable after the earliest of (1) such payment date, and (2) any other date
on which a Tax Underpayment Liability is paid, the Responsible Company shall
give written notice (a "Tax Liability Reallocation Notice") to the Other Company
specifying (v) each Company's allocable share of the Adjusted Consolidated or
Combined Tax Liability, including all relevant calculations and data required to
reasonably inform the Other Company of the manner in which the Tax liability has
been reallocated, (w) the amount, if any (a "Reallocation Deficit"), which is
payable by New Fluor to Parent, or Parent to New Fluor, in accordance with the
provisions of Section 2.01(b) or Section 2.02(b) and/or subject to the
provisions of Section 2.04 and Section 3 (whichever of such Sections may be
applicable and to the extent thereof), and (x) if applicable, evidence of
payment by the Responsible Company of any Tax Underpayment Liability. Within 20
business days following the date of such Tax Liability Reallocation Notice, New
Fluor shall pay to Parent, or Parent shall pay to New Fluor (whichever may be
applicable), the full amount of the Reallocation Deficit. The Company required
to make such payment (the "First Company") shall, together with its payment of
the Reallocation Deficit amount, pay to the other Company (the "Second Company")
(y) to the extent the Reallocation Deficit involves a shifting or reallocation
of Tax liabilities from that as previously (and most recently) allocated,
interest on such portion of the Reallocation Deficit calculated at the Base Rate
from the due date (determined without regard to extensions) for the Tax Return
to which the Audit Adjustments apply to the date of payment of the payment
required hereunder, and (z) to the extent the Reallocation Deficit involves a
Tax Underpayment Liability paid by the Second Company, interest on such portion
of the Reallocation Deficit calculated at the Base Rate from the date of such
payment of the Tax Underpayment Liability to the date of payment of the payment
required hereunder. By way of illustration (and not limitation) of the foregoing
provisions, if: (1) on the original Consolidated or Combined Tax Return there
was a Consolidated or Combined Tax Liability of $50,000,000 consisting of a
$30,000,000 Federal Without Amount allocated to Parent and a balance of
$20,000,000 allocated to New Fluor; (2) in connection with a Tax audit, the New
Fluor Group has increased income items and/or decreased deduction items of
$1,000,000 which are offset by decreased income

                                       25
<PAGE>

items and/or increased deduction items of the Parent Group in the amount of
$1,000,000; and (3) as a result of giving effect to all of such increases and
decreases, the Federal With Amount remains at $50,000,000, the Federal Without
Amount is reduced to $29,650,000 and the balance of $20,350,000 is allocated to
the New Fluor Group, then New Fluor shall be obligated to pay a Reallocation
Deficit to Parent in the amount of $350,000, plus interest at the Base Rate on
$350,000 from the due date (determined without regard to extensions) of the Tax
Return to which the Audit Adjustments apply to the date of payment of the
Reallocation Deficit hereunder.

     5.03  Payment of Separate Company Taxes. On or before the required payment
date therefore, each Company shall pay, or shall cause to be paid, to the
applicable Tax Authority all Separate Company Taxes which are allocable to and
payable by such Company or a member of such Company's Group in accordance with
the provisions of this Agreement, including any Separate Company Taxes which are
assessed or imposed by a Tax Authority as a result of any audit or examination
of a Separate Company Tax Return.

     5.04  Carrybacks, Carryovers and Audit Adjustment Benefits.

           (a)   Carrybacks. If any member of the New Fluor Group incurs a
Carryback item which may be carried back to (i) a Tax Period ending on or
before, or which includes, the Distribution Date with respect to which a
Separate Company Tax Return was filed by or on behalf of the New Fluor Group or
any member thereof, or (ii) a Tax Period with respect to which a Consolidated or
Combined Tax Return was filed, the New Fluor Group (or such member thereof)
shall be entitled, to the extent permitted or required by Law, to carry back
such Carryback item to the Tax Period covered by such Tax Return. Such member's
right hereunder shall include, but not be limited to, the filing of a refund
claim pursuant to Code Section 6411, the filing of amended Tax Returns, and the
filing of refund claims based on the applicable Carryback item, in each case to
the extent such a filing is permissible (any such filing, a "Carryback
Adjustment Request"). In the event that any such filing of a Carryback
Adjustment Request or other action with respect to the Carryback item must be
filed or taken by Parent to be effective, Parent shall effect such filing or
take such action as reasonably requested by New Fluor, and Parent shall
otherwise cooperate with the New Fluor Group in seeking from the appropriate Tax
Authority any Tax refund or other Tax Benefit that may reasonably be
attributable to the Carryback item. Tax refunds or other Tax Benefits resulting
from Carrybacks with respect to Separate Company Returns, and Tax refunds, Tax
Benefits and reallocations of Consolidated or Combined Tax liabilities resulting
from Carrybacks to Consolidated or Combined Tax Returns, shall be paid, credited
and/or allocated in accordance with, and otherwise shall be subject to, the
provisions of Section 5.04(d). The New Fluor Group (or applicable members
thereof) may, at its sole discretion, choose not to carry back any one or more
Carryback items as to which it is entitled hereunder to file a Carryback
Adjustment Request. Parent and the members of the Parent Group shall have
identical rights, and New Fluor shall have identical obligations, with respect
to Carryback items incurred by Parent or any other member of the Parent Group
which may be carried back to (i) a Tax Period ending on or before, or which
includes, the Distribution Date with respect to which a Separate Company Tax
Return was filed by or on behalf of the Parent Group or any member thereof, or
(ii) a Tax Period covered by a Consolidated or Combined Tax Return.

                                       26
<PAGE>

     (b)  Carryovers. The New Fluor Group and its members shall be entitled to
the benefit, following the Distribution, of any Carryover item incurred by any
such member in (i) any Tax Period ending on or before, or which includes, the
Distribution Date with respect to which a Separate Company Tax Return was filed
by or on behalf of the New Fluor Group or any member thereof, and (ii) any Tax
Period covered by a Consolidated or Combined Return. Any such member which
incurred any such Carryover item shall be entitled, to the extent permitted or
required by Law, to obtain the benefit of such Carryover item by filing, if
necessary, amended returns or refund claims based on the applicable Carryover
item with the appropriate Tax Authority (any such filing, a "Carryover
Adjustment Request"). Any Carryover item of Parent for any Tax Period including
the Distribution Date will be treated as incurred by a member of the New Fluor
Group only to the extent such Carryover item is apportioned hereunder to the
portion of such Tax Period through the Distribution Date. In the event that any
such filing of such a Carryover Adjustment Request or other action must be filed
or taken by Parent to be effective, Parent shall effect such filing or take such
action as is reasonably requested by New Fluor, and Parent shall otherwise
cooperate with the New Fluor Group in seeking from the appropriate Tax Authority
any Tax refund or other Tax Benefits that may reasonably be attributable to the
Carryover item. Tax refunds or other Tax Benefits resulting from Carryovers to
Separate Company Returns, and Tax refunds, Tax Benefits and reallocations of
Consolidated or Combined Tax liabilities resulting from Carryovers to
Consolidated or Combined Tax Returns, shall be paid, credited and/or allocated
in accordance with, and shall be otherwise subject to, the provisions of Section
5.04(d). Parent and the members of the Parent Group shall have identical rights,
and New Fluor shall have identical obligations, with respect to Carryover items
incurred by Parent or any other member of the Parent Group in (i) any Tax Period
ending on or before, or which includes, the Distribution Date with respect to
which a Separate Company Tax Return was filed by or on behalf of the Parent
Group or any member thereof, or (ii) any Tax Period covered by a Consolidated or
Combined Tax Return. The parties agree that the Tax Benefits attributable to any
Carryover items which Parent has as of the Distribution Date with respect to any
Tax Periods (or portions thereof) through the Distribution Date shall be
allocable to New Fluor, and the provisions of this Section 5.04(b) shall apply
to such Carryover items as if incurred by members of the New Fluor Group.

     (c)  Other Audit Adjustment Requests. In the case of Tax Items other than
Carrybacks and Carryovers, in the event that any member of the New Fluor Group
determines that it is entitled to a Tax refund or other Tax Benefit pertaining
to (i) a Tax Period ending on or before, or which includes, the Distribution
Date with respect to which a Separate Company Tax Return was filed by or on
behalf of the New Fluor Group or any member thereof, or (ii) a Tax Period with
respect to which a Consolidated or Combined Tax Return was filed, whether such
determination results from an audit or examination of any such Tax Return by any
Tax Authority or from a determination by the applicable New Fluor Group member
that one or more Tax Items were not properly reported and treated on any such
Tax Return, then the New Fluor Group or the applicable member thereof shall be
entitled, to the extent permitted or required by Law, to obtain the benefit of
such Tax refund or other Tax Benefit by filing amended returns or refund claims
based on the applicable adjusted Tax Items with the appropriate Tax Authority
(any such filing, an "Audit Adjustment Request").  It is intended that the
provisions of this Section 5.04(c) shall apply (but not be limited) to an Audit
Adjustment Request that results from and corresponds to an adjustment made by a
Tax Authority in connection with any such Tax Return.  By way of illustration,
and without limitation, if, as a result of an examination of New Fluor Group's

                                       27
<PAGE>

consolidated Federal Income Tax Return for its 1997 taxable year, the Internal
Revenue Service requires the New Fluor Group to capitalize an item that had been
deducted on such return, the New Fluor Group shall be entitled hereunder to
require the Parent to file an Audit Adjustment Request for the 1998 taxable year
(and later years, if applicable) to obtain a Tax refund or other Tax Benefit
attributable to depreciation or amortization deductions in such years related to
such items capitalized in 1997. In the event that any such filing of an Audit
Adjustment Request or other action must be filed or taken by Parent to be
effective, Parent shall effect such filing or take such action as is reasonably
requested by New Fluor, and Parent shall otherwise cooperate with the New Fluor
Group in seeking from the appropriate Tax Authority any such Tax refund or other
Tax Benefit. Tax refunds or other Tax Benefits resulting from such Audit
Adjustment Requests with respect to Separate Company Returns, and Tax refunds,
Tax Benefits and reallocations of Consolidated or Combined Tax liabilities
resulting from such Audit Adjustment Requests with respect to Consolidated or
Combined Tax Returns, shall be paid, credited and/or allocated in accordance
with, and shall be otherwise subject to, the provisions of Section 5.04(d).
Parent and the members of the Parent Group shall have identical rights, and New
Fluor shall have identical obligations, with respect to Audit Adjustment
Requests by any member of the Parent Group related to (i) any Tax Period ending
on or before, or which includes, the Distribution Date with respect to which a
Separate Company Tax Return was filed by or on behalf of the Parent Group or any
member thereof, and (ii) any Tax Period covered by a Consolidated or Combined
Return.

          (d)  Audit Adjustment Reallocations and Payments.

               (i)  General.

          (A)  The parties agree that any Tax refund or other Tax Benefit
resulting from or attributable to an Audit Adjustment of a Separate Company Tax
Return of the New Fluor Group shall be payable or otherwise allocable to New
Fluor or other applicable members of the New Fluor Group, and any Tax refund or
other Tax Benefit resulting from or attributable to an Audit Adjustment of a
Separate Company Tax Return of the Parent Group shall be payable or otherwise
allocable to Parent or other applicable member of the Parent Group, provided,
however, such Tax refund or Tax Benefit shall be allocated to New Fluor to the
extent it relates to a Separate Company Tax of the Parent with respect to a Tax
Period ending on or before the Distribution Date (or any portion thereof treated
as ending on the Distribution Date pursuant to Section 2.02(a) or Section 2.03)
for which New Fluor is liable pursuant to the provisions of Section 2. In the
case of any Audit Adjustments with respect to a Consolidated or Combined Tax
Return resulting from a Carryback Adjustment Request, Carryforward Adjustment
Request or Audit Adjustment Request, the following provisions shall apply: (A)
the Responsible Company shall recompute and reallocate the Consolidated or
Combined Tax liability, as adjusted, and issue a Tax Liability Reallocation
Notice, in accordance with the principles and provisions of Section 5.02; (B)
any Reallocation Deficit, together with interest thereon, shall be paid by New
Fluor or Parent, as the case may be, in accordance with the provisions of
Section 5.02; (C) in applying the With/Without Allocation Method, the Tax
Benefits attributable to any Audit Adjustment shall be those which result from
the application of the Audit Adjustment to a Tax Return as previously (and most
recently) adjusted, if applicable; for example, if one Company (the "First
Company") incurs a Carryback to a Consolidated or Combined Tax Return that
absorbs the full Tax Benefit available on such Tax Return with

                                       28
<PAGE>

respect to that type of Carryback, and in a subsequent Tax Period the second
Company (the "Second Company") incurs a similar Carryback which would have
generated a Tax Benefit on such Consolidated or Combined Tax Return had the
First Company's Carryback not occurred, such Second Company's Carryback shall
not be deemed to result in any Tax Benefit on such Consolidated or Combined Tax
Return that is not realized under applicable Law, and there shall be no
reallocation or apportionment required (by reason of such unrealized Tax
Benefit) with respect to the Tax Benefit derived by the First Company from its
prior Carryback adjustment; and (D) if, as a result of such Audit Adjustments, a
member of one Group (the "First Group Member") receives a Tax refund or Tax
reduction which, under the foregoing principles, is payable or allocable to a
member of the other Group (the "Second Group Member"), the First Group Member
shall pay the amount thereof to the Second Group Member in accordance with the
following provisions of this Section 5.04(d).

     (B)  For purposes of applying the provisions of the foregoing Section
5.04(d)(i)(A) and other provisions of this Agreement involving Audit
Adjustments, the parties' priority of entitlement to Audit Adjustments shall be
determined, to the extent applicable, in accordance with statutory priorities,
including priorities based on the Tax Periods in which the relevant Tax Items
arise.

          (ii)   Tax Refunds. If a member of the Parent Group receives from a
Tax Authority a Tax refund payment, including but not limited to a payment of
interest with respect to a Tax refund or other Tax adjustment (any such refund
or interest payment, a "Tax Adjustment Payment"), and a member of the New Fluor
Group is entitled to such Tax Adjustment Payment pursuant to the provisions of
Section 5.04(d)(i) and other applicable provisions of this Agreement, Parent
shall pay, or cause to be paid, to New Fluor the amount of such Tax Adjustment
Payment within 20 business days following receipt of the Tax Adjustment Payment
by Parent or other member of the Parent Group (the "TAP Receipt Date"). If
Parent does not pay such amount within 3 business days following such TAP
Receipt Date, then Parent also shall pay to New Fluor, together with its payment
to New Fluor of such Tax Adjustment Payment, interest on the amount of such Tax
Adjustment Payment calculated at the Base Rate from the TAP Receipt Date to the
date of Parent's payment hereunder to New Fluor. New Fluor shall have an
identical obligation to pay to Parent any Tax Adjustment Payment, together with
interest thereon, to which any member of the Parent Company is entitled pursuant
to the provisions of Section 5.04(d)(i) and other applicable provisions of this
Agreement.

          (iii)  Tax Reductions. If, in lieu of a Tax Adjustment Payment that,
if paid, would be payable to New Fluor pursuant to Section 5.04(d)(ii), a member
of the Parent Group receives a reduction of Taxes otherwise payable by such
member, including but not limited to a reduction of an interest obligation or
other credit against interest obligations otherwise payable by such member (any
such reduction or credit, a "Tax Adjustment Credit"), Parent shall pay to New
Fluor, within 20 business days following the date on which the applicable Tax
Authority gives effect to such Tax Adjustment Credit (the "TAC Adjustment
Date"), the full amount of such Tax Adjustment Credit. If Parent does not pay
such amount within 3 business days following the TAC Adjustment Date, then
Parent also shall pay to New Fluor, together with its payment to New Fluor of
the amount of such Tax Adjustment Credit, interest on the amount of such Tax
Adjustment Credit calculated at the Base Rate from the TAC Adjustment Date to
the date of Parent's payment hereunder to New Fluor. New Fluor shall have

                                       29
<PAGE>

an identical obligation to pay to Parent the amount of any Tax Adjustment
Credit, together with interest thereon, which any member of the New Fluor Group
receives in lieu of a Tax Adjustment Payment that, if paid to a member of the
New Fluor Group, would be payable by New Fluor to Parent pursuant to Section
5.04(d)(ii).

          (iv) Future Tax Benefits. If any member of the Parent Group receives
or is credited with any Tax Item that will or may result in a Tax Benefit to
such Parent Group member in future Tax Periods and which is allocable to a
member of the New Fluor Group pursuant to the provisions of Section 5.04(d)(i)
and other applicable provisions of this Agreement, Parent shall pay to New
Fluor, within 20 business days following the due date (excluding extensions) of
the Tax Return (the "TR Due Date") for any Tax Period in which the Parent Group
(or any member thereof) realizes any portion of such Tax Benefit, the amount of
such Tax Benefit realized in such Tax Period. If Parent does not pay such amount
within 3 business days following such TR Due Date, then Parent also shall pay to
New Fluor, together with its payment to New Fluor of such Tax Benefit amount,
interest thereon calculated at the Base Rate from such TR Due Date to the date
of Parent's payment to New Fluor of the payment required hereunder. New Fluor
shall have an identical obligation to pay to Parent the amount of any future Tax
Benefits realized by a member of the New Fluor Group which are allocable to
members of the Parent Group pursuant to the provisions of Section 5.04(d)(i) and
other applicable provisions of this Agreement.

          (v)   Certain Transferred Obligation Tax Benefits. The parties agree
as follows:

                (A)  In connection with the Transactions and pursuant to the
provisions of the Distribution Agreement and/or its related agreements among the
parties, certain fixed or contingent obligations of Parent and Massey relating
to periods prior to the Distribution Date, including, without limitation,
compensation and benefit related obligations to or with respect to Pre-
Distribution Parent Employees or Pre-Distribution Massey Employees (as those
terms are defined in Section 5.04(vi)(D)), other than obligations related to
Substituted Equity Incentives as provided for under Section 5.04(d)(vi), are
being paid by (or reimbursed to Parent by), or assigned to and assumed by, New
Fluor and/or other members of the New Fluor Group (collectively, the
"Transferred Obligations"). Without limitation on the foregoing, it is intended
that the provisions of this Section 5.04(v)(A) shall apply to (1) New Fluor's
payment or other satisfaction (or reimbursement to Parent for its payment or
other satisfaction) of deferred compensation obligations to Pre-Distribution
Employees, as defined in Section 5.04(vi)(D), and (2) New Fluor's payment or
other satisfaction (or reimbursement to Parent or A.T. Massey for its payment or
other satisfaction) of amounts payable to Don L. Blankenship pursuant to the
amendment to his employment agreement entered into in connection with the
Distribution. Any Tax deduction or other Tax Benefit resulting from or
attributable to the payment, reimbursement or other satisfaction of all or any
portion of any such Transferred Obligation shall be allocable to the New Fluor
Group member which pays, reimburses or otherwise satisfies such Transferred
Obligation. Unless required otherwise by applicable Tax Law or the actions of a
Tax Authority, the parties agree that the New Fluor Group shall be entitled to
claim such Tax Benefit on the appropriate New Fluor Group Tax Return filed after
the Distribution Date, and, except as provided under Section 5.04(d)(v)(B)
below, the Parent Group shall not claim any such Tax Benefit on any Tax Return
of the Parent Group.

                                       30
<PAGE>

               (B) If, pursuant to applicable Tax Law or the actions of a Tax
Authority, a member of the Parent Group is required to, or if New Fluor and
Parent mutually agree that Parent shall, claim a deduction or other Tax Benefit
attributable to the payment or other satisfaction by a New Fluor Group member of
a Transferred Obligation, Parent shall pay to New Fluor the excess of (i) the
amount of any Tax refund or Tax reduction which the Parent Group obtains as a
result of, or which is otherwise attributable to, claiming such deduction or
other Tax Benefit on its Tax Returns, over (ii) the amount of any Tax incurred
by the Parent Group as a result of, or which is otherwise attributable to, the
assumption, payment, reimbursement or other satisfaction of the Transferred
Obligation by New Fluor and/or other members of the New Fluor Group (any such
excess amount, the "Transferred Obligation Tax Benefit Amount"). Such
Transferred Obligation Tax Benefit Amount shall be paid by Parent to New Fluor
within 20 business days following the date (herein the "Transferred Obligation
Tax Benefit Date") as of which the Parent Group receives any such Tax refund
and/or is credited with or otherwise receives the benefit of any such Tax
reduction (which Date, in the case of a Parent Tax Return on which Parent
originally claims a deduction or other Tax Benefit attributable to the payment
or other satisfaction of a Transferred Obligation, shall be the due date
(determined without regard to extensions) for the filing of such Return). If
Parent does not make such payment within 3 business days following the
Transferred Obligation Tax Benefit Date, then Parent also shall pay to New
Fluor, together with such payment to New Fluor, interest on such Transferred
Obligation Tax Benefit Amount calculated at the Base Rate from the Transferred
Obligation Tax Benefit Date to the date of the payment hereunder. If, pursuant
to an Audit Adjustment, a Tax Authority disallows a Tax Benefit claimed by the
New Fluor Group on its Tax Returns with respect to the payment or other
satisfaction of such a Transferred Obligation, New Fluor shall be entitled to
require Parent to seek to obtain the Tax Benefits attributable thereto pursuant
to the provisions of Section 5.04(c), in which case Parent shall be obligated to
pay to New Fluor the amount of any Tax Benefits obtained, together with
interest, in accordance with the provisions of this Section 5.04(d)(v)(B) and
the foregoing provisions of this Section 5.04(d).

               (C) In connection with its payment or other satisfaction of all
or any portion of a Transferred Obligation, New Fluor shall pay, make, withhold
and/or deposit all employment and payroll Taxes and Tax withholdings as required
under applicable Tax Laws. If, pursuant to applicable Tax Law or the actions of
a Tax Authority, a member of the Parent Group is required to, or if New Fluor
and Parent mutually agree that Parent shall, claim a deduction or other Tax
Benefit attributable to the payment or other satisfaction of all or any portion
of a Transferred Obligation, or if a member of the Parent Group is otherwise
required to pay employment or payroll Taxes with respect to the payment or other
satisfaction of all or any portion of a Transferred Obligation, then New Fluor
shall reimburse Parent for the full amount of such employment and payroll Taxes
paid by Parent, with such reimbursement to be made within three business days
following New Fluor's receipt of demand therefor from Parent.

          (vi) Certain Equity Incentive Tax Benefits. The parties agree as
follows:

               (A) In connection with the Transactions and pursuant to the
provisions of the Distribution Agreement and/or its related agreements among the
parties, certain Pre-Distribution Equity Incentives (as defined herein) will be
cancelled and in lieu thereof New

                                       31
<PAGE>

Fluor will, effective as of the Distribution, issue or grant New Fluor
Substituted Equity Incentives (as defined herein) to the parties holding such
cancelled Pre-Distribution Equity Incentives immediately prior to the
Distribution. Any Tax deduction or other Tax Benefit resulting from or
attributable to the vesting, exercise, purchase, cancellation, payment or other
disposition or satisfaction of all or any portion of a New Fluor Substituted
Equity Incentive, including, without limitation, a payment of cash in lieu of
issuing a New Fluor Substituted Equity Incentive (any such action or event, a
"Satisfying" or "Satisfaction") shall be allocable to the New Fluor Group member
which Satisfies such New Fluor Substituted Equity Incentive. Without limitation
on the foregoing, the parties agree that if New Fluor pays cash to, or pays cash
into a fund or account for the benefit of, a Pre-Distribution Massey Employee
(as defined below) in consideration for the sale or cancellation of, or in lieu
of the issuance of, a New Fluor Substituted Equity Incentive issued or otherwise
issuable (as applicable) to such Employee (whether or not the vesting thereof is
accelerated as a result of the Distribution), such payment by New Fluor shall be
deemed a Satisfaction to which the provisions of this section 5.04(d)(vi) apply.
Also in connection with the Transactions, New Fluor will be making payments to,
or into an account on behalf of, Pre-Distribution Massey Employees (including
reimbursements to Parent or A.T. Massey for such payments) in cancellation or
other Satisfaction of Parent Substituted Equity Incentives (as defined herein),
and the parties agree that any Tax deduction or other Tax Benefit resulting from
or attributable to the purchase or other Satisfaction of any such Parent
Substituted Equity Incentive shall be allocated to the New Fluor Group member
which Satisfies such Parent Substituted Equity Incentive. Without limitation on
the foregoing, it is intended that the foregoing provisions of this Section
5.04(vi)(A) shall apply to New Fluor's payment or other satisfaction (or
reimbursement to Parent or A.T. Massey for its payment or other satisfaction) of
(1) amounts payable to Pre-Distribution Employees in cancellation of, or with
respect to, options to acquire Parent stock, and (2) amounts payable to Don L.
Blankenship in cancellation of, or with respect to, Pre-Distribution Equity
Incentives pursuant to the amendment to his employment agreement entered into in
connection with the Distribution. Unless required otherwise by applicable Tax
Law or the actions of a Tax Authority, the parties agree that the New Fluor
Group shall be entitled to claim such deduction or other Tax Benefit on the
appropriate New Fluor Group Tax Return filed after the Distribution Date, and,
except as provided under Section 5.04(d)(vi)(B) below, the Parent Group shall
not claim any such deduction or other Tax Benefit on any Tax Return of the
Parent Group.

               (B) If, pursuant to applicable Tax Law or the actions of a Tax
Authority, a member of the Parent Group is required to, or if New Fluor and
Parent mutually agree that Parent shall, claim a deduction or other Tax Benefit
attributable to the Satisfaction by a New Fluor Group member of a New Fluor
Substituted Equity Incentive, Parent shall pay to New Fluor the excess of (i)
the amount of any Tax refund or Tax reduction which the Parent Group obtains as
a result of, or which is otherwise attributable to, claiming such deduction or
other Tax Benefit on its Tax Returns, over (ii) the amount of any Tax incurred
by the Parent Group as a result of, or which is otherwise attributable to, the
assumption, payment, reimbursement or other Satisfaction of the New Fluor
Substituted Equity Incentive by New Fluor and/or other members of the New Fluor
Group (any such excess amount, the "Substituted Incentive Tax Benefit Amount").
Such Substituted Incentive Tax Benefit Amount shall be paid by Parent to New
Fluor within 20 business days following the date (herein the "Substituted
Incentive Tax Benefit Date") as of which the Parent Group receives any such Tax
refund and/or is credited with or otherwise receives the benefit of any such Tax
reduction (which Date, in the

                                       32
<PAGE>

case of a Parent Tax Return on which Parent originally claims a deduction or
other Tax Benefit attributable to the Satisfaction of a New Fluor Substituted
Equity Incentive, shall be the due date (determined without regard to
extensions) for the filing of such Return). If Parent does not make such payment
within 3 business days following the Substituted Incentive Tax Benefit Date,
then Parent also shall pay to New Fluor, together with such payment to New
Fluor, interest on such Substituted Incentive Tax Benefit Amount calculated at
the Base Rate from the Substituted Incentive Tax Benefit Date to the date of the
payment hereunder. If, pursuant to an Audit Adjustment, a Tax Authority
disallows a Tax Benefit claimed by the New Fluor Group on its Tax Returns with
respect to the Satisfaction of such a New Fluor Substituted Equity Incentive,
New Fluor shall be entitled to require Parent to seek to obtain the Tax Benefits
attributable thereto pursuant to the provisions of Section 5.04(c), in which
case Parent shall be obligated to pay to New Fluor the amount or value of any
Tax Benefits obtained, together with interest, in accordance with the provisions
of this Section 5.04(d)(vi)(B) and the foregoing provisions of this Section
5.04(d). The parties agree that if, pursuant to the foregoing provisions, Parent
claims a Tax Benefit on behalf of New Fluor with respect to an unvested New
Fluor Substituted Equity Incentive (or if Parent claimed a Tax Benefit with
respect to a Pre-Distribution Equity Incentive) and such Tax Benefit is
disallowed and recaptured to any extent by reason of a failure to satisfy
(including but not limited to termination of employment by the holder of such
Incentive prior to satisfaction) all or any portion of the applicable vesting
requirement, the recaptured Tax Benefit shall be a Disallowed Tax Benefit
subject to the provisions of Section 5.04(f)(i)(B).

               (C) In connection with its Satisfaction of any New Fluor
Substituted Equity Incentive, New Fluor shall pay, make, withhold and/or deposit
all employment and payroll Taxes and Tax withholdings as required under
applicable Tax Laws. If, pursuant to applicable Tax Law or the actions of a Tax
Authority, a member of the Parent Group is required to, or if New Fluor and
Parent mutually agree that Parent shall, claim a deduction or other Tax Benefit
attributable to the Satisfaction of a New Fluor Substituted Equity Incentive, or
if a member of the Parent Group is otherwise required to pay employment or
payroll Taxes with respect to a Satisfaction of a New Fluor Substituted Equity
Incentive, then New Fluor shall reimburse Parent for the full amount of such
employment and payroll Taxes paid by Parent, with such reimbursement to be made
within three business days following New Fluor's receipt of demand therefor from
Parent.

               (D) For purposes of Section 5.04(d)(v) and this Section
5.04(d)(vi), the following definitions shall apply:

                   (1) The term "Equity Incentive" shall mean any restricted
stock (or related unit), stock appreciation right, stock option, shadow stock or
other equity-based compensation which is issued, granted or otherwise
transferred by a corporation to its (or its Affiliate's) employees, directors or
consultants.

                   (2) The term "New Fluor Substituted Equity Incentive" shall
mean an Equity Incentive which was issued or granted by New Fluor in exchange or
substitution for a Pre-Distribution Equity Incentive.

                                       33
<PAGE>

                    (3) The term "Parent Substituted Equity Incentive" shall
mean an Equity Incentive which was issued or granted by Parent in exchange or
substitution for a Pre-Distribution Equity Incentive.

                    (4) The term "Pre-Distribution Employee" shall mean any Pre-
Distribution Parent Employee and any Pre-Distribution Massey Employee.

                    (5) The term "Pre-Distribution Equity Incentive" shall mean
an Equity Incentive which was issued or granted by Parent and which is
outstanding immediately prior to the Distribution.

                    (6) The term "Pre-Distribution Massey Employee" shall mean
an individual who was employed by one or more members of the Massey Group prior
to the Distribution, including former employees who retired or otherwise
terminated employment prior to the Distribution.

                    (7) The term "Pre-Distribution Parent Employee" shall mean
an individual who was employed by Parent prior to the Distribution, including
former employees who retired or otherwise terminated employment prior to the
Distribution.

                    (8) The term "Substituted Equity Incentives" shall mean,
collectively, New Fluor Substituted Equity Incentives and Parent Substituted
Equity Incentives.

          (vii)  Other Tax Benefits. If any member of one group (the "First
Group Member") receives any Tax Benefit not described in the foregoing clauses
(i), (ii), (iii), (iv), (v) and (vi) but which is payable or allocable to a
member of the other Group (the "Second Group Member") in accordance with the
principles underlying the Tax liability and Tax Benefit allocation provisions of
Section 2 and the foregoing provisions of this Section 5, such First Group
Member shall pay the amount of such Tax Benefit to the Second Group Member
within 20 business days following the date on which the First Group Member
receives such Tax Benefit through a refund of or reduction in Tax (the "Other
Tax Benefit Date"). If the First Group Member does not make such payment within
3 business days following the Other Tax Benefit Date, such First Group Member
shall also pay to the Second Group Member, together with such payment, interest
thereon calculated at the Base Rate from such Other Tax Benefit Date to the date
of the First Group Member's payment hereunder to the Second Group Member.

     (e)  Offset For Federal Income Tax Burdens. Notwithstanding the provisions
of Section 5.04 specifying the amount of payment to be made by one Group (the
"First Group") to a member of the other Group (the "Second Group") by reason of
the receipt or accrual by the First Group of a Tax refund, Tax reduction or
other Tax Benefit that under this Agreement is allocable to the Second Group
(any such refund, reduction or other benefit, the "Reallocable Tax Benefit"), if
(i) the First Group is required, for Federal Income Tax purposes, to recognize
income with respect to its receipt or accrual of all or any portion of such
Reallocable Tax Benefit (any such portion, the "Taxable Portion"), and (ii) such
Taxable Portion exceeds the amount of the Federal Income Tax deduction to which
the First Group is entitled by reason of its payment of (or accrual of the
obligation to pay) the Reallocable Tax Benefit to the Second Group (such

                                       34
<PAGE>

excess, the "Taxable Excess"), then (iii) the amount of the Reallocable Tax
Benefit shall be reduced by the First Group's Federal Income Tax liability
attributable to such Taxable Excess.

          (f) Additional Audit Adjustment Rules. Notwithstanding the foregoing
provisions of this Section 5.04, the parties agree as follows:

              (i)    If a member of one Group (the "First Group Member") is
required, pursuant to the provisions of subsection (a), (b), (c), (d)(v)(B) or
(d)(vi)B) of this Section 5.04, to file amended returns or refund claims or to
take other actions to obtain a Tax refund or other Tax Benefit on behalf of a
member of the other Group (the "Second Group Member"), the reasonable costs and
expenses incurred by such First Group Member in connection with such filing or
other action shall be paid by the Second Group Member, and to the extent such
costs and expenses have not been paid at the time of any payment pursuant to
Section 5.04(d), the amount of such costs and expenses may be offset against
such payment.

              (ii)   If, pursuant to the actions of any Tax Authority, all or
any portion of the Tax Benefit obtained by a member of one Group (the "First
Group Member") on behalf of a member of the other Group (the "Second Group
Member") is disallowed or otherwise reversed (such portion, the "Disallowed Tax
Benefit), then (1) if the relevant Tax Benefit payment has not yet been paid by
the First Group Member to the Second Group Member, such Tax Benefit payment
shall be reduced by the amount of the Federal Income Tax liability incurred by
the First Group Member as a result of the disallowance or other reversal of the
Disallowed Tax Benefit (such liability, the "Disallowed Tax Benefit Tax
Liability"), or (2) if such Tax Benefit payment has been paid, the Second Group
Member shall pay to the First Group Member an amount equal to the Disallowed Tax
Benefit Tax Liability plus interest at the Base Rate on the amount of such
Disallowed Tax Benefit Tax Liability from the date of the payment of the Tax
Benefit by the First Group Member to the Second Group Member to the date of
payment hereunder of said Disallowed Tax Benefit Tax Liability to the First
Group Member.

              (iii)  If a member of the Parent Group or a member of the New
Fluor Group, as the case may be, receives a Carryback Adjustment Request,
Carryforward Adjustment Request or an Audit Adjustment Request from a member of
the other Group, the party receiving such request may, in lieu of filing or
otherwise processing the amended return or refund claim or taking any other
action so requested, pay to the requesting party the amount of the Tax refund,
interest payment or other Tax Benefit which the requesting party wishes to
obtain pursuant to the applicable Adjustment Request.

              (iv)   Notwithstanding the foregoing provisions of this Section
5.04, neither Company shall be obligated to take any action with respect to any
Carryback Adjustment Request, Carryforward Adjustment Request or Audit
Adjustment Request if the amount of Tax Benefit to be obtained through such
Request does not exceed $10,000 (any such Request, a "Nonmandatory Request"),
provided, however, at such time as the aggregate amount of all such Nonmandatory
Requests made by a Group and which are not barred by an applicable statute of
limitations exceeds $50,000, then all such Nonmandatory Requests must be acted
on without regard to the $10,000 threshold provided for hereunder, provided,
however, no action shall be required with respect to subsequent Nonmandatory
Requests until such time as such subsequent

                                       35
<PAGE>

Nonmandatory Requests not barred by the statute of limitations exceed $50,000
(with the foregoing provisions to apply to ongoing series of Nonmandatory
Requests).

     5.05  Treatment of Payments; Tax Gross-Up; Certain Tax Offsets.

           (a)  General. The parties agree that, except as otherwise
contemplated under Section 5.05(b) or as otherwise required pursuant to a change
in applicable Tax Laws or an action of a Tax Authority following the
Distribution Date, any payment by a member of one Group to a member of the other
Group pursuant to Section 5.01, Section 5.02 or Section 5.04 shall be treated
for Income Tax purposes by the payor and the recipient as a non-taxable capital
contribution or non-taxable distribution, as appropriate, occurring prior to the
Distribution, but only to the extent such payment does not relate to a Tax
allocated to the payor in accordance with Treasury Regulation 1.1502-33(d) or
under comparable principles of other applicable Tax Laws.

           (b)  Interest Payments. The parties agree as follows:

                (i)   To the extent that any payment pursuant to Section 5.04 by
a member of one Group to a member of the other Group is attributable to interest
received by or credited to the payor from a Tax Authority, then to the extent
permitted by Law the parties shall either (A) treat the payor as receiving such
interest portion as agent for the recipient, in which case the recipient shall
treat such interest portion as interest income to the recipient (includable in
income to the extent provided by Law), or (B) both payor and recipient shall
treat such interest portion of the payment as an expense paid by the payor
(deductible to the extent provided by Law) and income to the recipient
(includable in income to the extent provided by Law).

                (ii)  To the extent that any payment pursuant to Section 5.04 by
a member of one Group to a member of the other Group is attributable to interest
paid by the recipient to a Tax Authority, then to the extent permitted by Law
the parties shall either (A) treat the recipient as paying such interest portion
to the Tax Authority as agent for the payor, in which case the recipient shall
not treat such interest portion as interest income to or interest expense of the
recipient and the payor shall treat such interest portion as interest expense of
the payor (deductible to the extent provided by Law), or (B) both payor and
recipient shall treat such interest portion of the payment as an expense paid by
the payor (deductible to the extent provided by Law) and income to the recipient
(includable in income to the extent provided by Law).

                (iii) To the extent that any payment pursuant to Section 5.01 or
Section 5.02 or Section 5.04 constitutes (A) a payment of interest by the payor
under Section 5.01 or Section 5.02 with respect to the period from the date the
recipient paid a Tax liability allocable to the payor until the date of the
payment under Section 5.01 or Section 5.02, or (B) a payment of interest by the
payor under Section 5.04 with respect to the period from the date the payor
received a Tax Benefit allocable to the recipient until the date of the payment
under Section 5.04, both payor and recipient shall treat such interest portion
of the payment as interest expense paid by the payor (deductible to the extent
provided by Law) and interest income to the recipient (includible in income to
the extent provided by Law).

                                       36
<PAGE>

          (c)  Gross-Up. If, notwithstanding the tax treatment contemplated
under Section 5.05(a) with respect to payments made by a member of one Group
(the "First Group Member") to a member of the other Group (the "Second Group
Member"), the Second Group Member is required to treat as taxable income any
portion of the payment from the First Group Member other than any interest
portion thereof as described in Section 5.05(b) (such taxable portion, the
"Taxable Intercompany Payment"), then the First Group Member shall be obligated
to pay to the Second Group Member an additional payment in an amount such that
(x) the sum of such additional payment plus the Taxable Intercompany Payment,
less (y) the amount of Income Taxes payable by the recipient with respect to the
accrual or receipt of such additional payment and the Taxable Intercompany
Payment, equals the amount of the Taxable Intercompany Payment.

          (d)  Offset For Certain Federal Tax Benefits. Notwithstanding the
provisions of Section 5.01 through 5.04 specifying the amount of payments
(inclusive of interest, penalties and additions) from one Group to the other
Group related to State Income Taxes, Foreign Income Taxes or other Taxes other
than Federal Income Taxes (any such payment, an "Intergroup Non-Federal Tax
Payment"), if (i) the Group receiving such Intergroup Non-Federal Tax Payment
(the "Recipient Group") is entitled to claim a Tax deduction or Tax credit for
Federal Income Tax purposes with respect to its payment or accrual of all or any
portion of the Tax to which such Intergroup Non-Federal Tax Payment pertains
(any such portion of such Tax, the "Federal Tax Benefited Amount"), and (ii) all
or any portion of such Federal Tax Benefited Amount is not deductible for
Federal Income Tax purposes by the paying Group and is not includible in income
of the Recipient Group for Federal Income Tax purposes (such portion not
deductible and not includable, the "Nontaxable Portion"), then (iii) the amount
of such Intergroup Non-Federal Tax Payment shall be reduced by the value of the
Recipient Group's Federal Income Tax Benefit attributable to such Nontaxable
Portion. By way of illustration of the foregoing, if New Fluor is otherwise
obligated under this Agreement to make a payment of $1,000,000 to Parent related
to a State Income Tax that is allocable under this Agreement to the New Fluor
Group but as to which (x) Parent will be entitled to claim a Federal Income Tax
deduction, and (y) in accordance with the principles of Section 5.05(a), such
payment from New Fluor to Parent is neither deductible by New Fluor nor
includible in income by Parent, then (y) the amount of the payment from New
Fluor to Parent shall be reduced to $650,000 if Parent's applicable Federal
Income Tax rate is 35%.

     5.06 Method of Payment. All payments made by one Company (or its
Affiliates) to the other Company (or its Affiliates) under this Agreement shall
be made in immediately available funds.

     5.07 Late Payments. Any amount payable by one party (the "first party") to
another party (the "second party") under this Agreement which is not paid on or
before expiration of the period within which such payment is required to be made
pursuant to this Agreement shall bear interest from such expiration date until
such payment is made at the Base Rate plus two percentage points, provided,
however, such interest rate shall not exceed the rate permissible under
applicable usury laws (if such laws are applicable). To the extent interest
required to be paid under this Section 5.07 duplicates interest required to be
paid under any other provision of this Agreement, interest shall be computed at
the higher of the interest rate provided under this Section 5.07 or the interest
rate provided under such other provision.

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<PAGE>

     Section 6.  Intentionally Omitted.

     Section 7.  Assistance and Cooperation.

     7.01  General. After the Distribution Date, each Company shall cooperate
(and cause its respective Affiliates to cooperate) with the other Company and
with the other Company's agents, including accounting firms and legal counsel,
in connection with Tax matters relating to the other Company and its Affiliates,
including, without limitation, (i) the preparation and filing of Tax Returns,
(ii) determining the liability for and amount of any Taxes due (including
estimated Taxes) or the right to and amount of any refund of Taxes, (iii)
examinations of Tax Returns, (iv) any administrative or judicial proceeding in
respect of Taxes assessed or proposed to be assessed, and (v) establishing the
tax basis of any asset held by either Company or its Affiliates at any time
prior to the Distribution. Such cooperation shall include but not be limited to
(1) making all information and documents in their possession relating to the
other Company and its Affiliates available to such other Company as provided in
Section 8.02 and (2) promptly notifying and forwarding to the appropriate
Company any notice or other correspondence from any Tax Authority that is
received by one Company but intended for the other Company. Each Company shall
also make available to the other Company, as reasonably requested and available,
personnel (including officers, directors, employees and agents of the Company or
its Affiliates) responsible for preparing, maintaining, and interpreting
information and documents relevant to Taxes, and personnel reasonably required
as witnesses or for purposes of providing information or documents in connection
with items (i) through (iv) in the first sentence of this Section 7.01. Any
information or documents provided under this Section 7 shall be kept
confidential by the Company receiving the information or documents, except as
may otherwise be necessary in connection with the filing of Tax Returns or in
connection with any administrative or judicial proceedings relating to Taxes.

     7.02  Income Tax Return Information. Each of the Companies will provide
information and documents relating to its Group to the other Company as required
for Tax Return preparation purposes. New Fluor and Parent shall cause the
members of their respective Groups to provide Tax Return information to the
Responsible Company in a form suitable for filing (except for consolidating and
other adjustments which would normally be made by the Responsible Company) at
least seventy-five days prior to the due date (including extensions) of the
particular Tax Return.

     7.03  Shareholder Information Letter. New Fluor shall prepare a letter
(subject to Parent's review and comments), to be sent to all persons who are
holders of record of Parent stock immediately prior to the Distribution,
advising such shareholders (i) of the principal Federal Income Tax consequences
to such shareholders resulting from the Distribution as determined pursuant to
the Ruling, (ii) the method by which such shareholders can allocate the tax
basis in their pre-Distribution stock among the shares of Parent stock and New
Fluor stock that such shareholders hold following the Distribution, and (iii)
such other matters related to the Distribution as New Fluor deems appropriate.
New Fluor shall pay (or reimburse Parent for) the costs of printing and mailing
such letter to such shareholders.

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<PAGE>

     Section 8.  Tax Records.

     8.01  Retention of Tax Records. The Companies shall preserve and keep all
Tax Records and supporting information and documentation relating to their
respective Groups for Tax Periods ending before, on or including the
Distribution Date for so long as the contents thereof may become material in the
administration of any matter under the Code or other applicable Tax Law, but in
any event until the later of (i) the expiration of any applicable statute of
limitation (including extensions thereof) or (ii) seven years after the
Distribution Date. If, prior to the expiration of the applicable statute of
limitation (including extensions thereof) and such seven-year period, a Company
reasonably determines that any Tax Records which it is required to preserve and
keep under this Section 8 are no longer material in the administration of any
matter under the Code or other applicable Tax Law, such Company may dispose of
such records upon 90 days prior notice to the other Company. Such notice shall
include a list of the records to be disposed and shall describe in reasonable
detail each file, book, or other record accumulation which is to be disposed.
The notified Company shall have the opportunity, at its cost and expense, to
copy or remove, within such 90-day period, all or any part of such Tax Records.

     8.02  Access to Tax Records. The Companies and their respective Affiliates
shall make available to each other for inspection and copying, during normal
business hours and upon reasonable notice, all Tax Records in their possession
to the extent reasonably required by the other Company in connection with the
preparation of Tax Returns, refund claims, audits, litigation, or the resolution
of any matter under this Agreement. Without limitation on the foregoing, each
Company (the "First Company") shall provide the other Company (the "Second
Company") with reasonable access to Tax Returns (including the workpapers
related thereto) filed by the First Company or members of its Group following
the Distribution Date for the purpose of enabling the Second Company to
determine whether, when and to what extent a Tax Benefit allocable hereunder to
the Second Company results in a Tax refund or Tax reduction for the First
Company.

     8.03  Copies of Consolidated or Combined Tax Returns. Within ten days after
filing any Consolidated or Combined Tax Return, the Responsible Company shall
provide a true and correct copy of such Tax Return to the Other Company.

     Section 9.  Tax Contests.

     9.01  Notice Requirement. A party to this Agreement (the "First Party")
shall provide, within 15 business days after such First Party (or any member of
the First Party's Group) actually receives official written notification
thereof, notice to the other party (the "Second Party") of any pending or
threatened Tax audit, assessment or proceeding or other Tax Contest related to
Taxes which are, or may reasonably be expected to be, allocable to and payable
by such Second Party pursuant to the provisions of this Agreement. Such notice
shall contain factual information (to the extent known by the First Party)
describing any asserted Tax liability in reasonable detail and shall be
accompanied by copies of any notices or other documents received from any Tax
Authority in respect of any such matters. If the First Party fails to give the
Second Party such notice of such asserted Tax liability, then (i) if the Second
Party is precluded from contesting the asserted Tax liability in all otherwise
available forums as a result of the failure to give such

                                       39
<PAGE>

notice, the Second Party shall have no obligation to pay to the First Party any
Taxes arising out of such asserted Tax liability which are otherwise allocable
to the Second Party under this Agreement, unless the Tax Contest Committee (as
defined in Section 9.02(b)) determines that it is highly unlikely that
contesting the Tax liability would have materially reduced the amount of the Tax
liability allocable to the Second Party, and (ii) if the Second Party is not
precluded from contesting the asserted Tax liability in all otherwise available
forums, but such failure to give such notice results in a monetary detriment to
the Second Party, then any amount which the Second Party is otherwise required
to pay to the First Party pursuant to this Agreement shall be reduced by the
amount of such detriment, as established to the reasonable satisfaction of the
Tax Contest Committee.

     9.02  Control of Tax Contests.

     (a)  Separate Company Taxes. In the case of any Tax Contest with respect to
any Separate Company Tax, the Company having liability for the Tax shall have
exclusive control over the Tax Contest, including exclusive authority with
respect to any settlement of any matters involved in such Tax Contest.

     (b)  Consolidated or Combined Taxes. In the case of any Tax Contest with
respect to any Consolidated or Combined Tax, (i) Parent shall control the
defense or prosecution of the portion of the Tax Contest directly and
exclusively related to any Parent Adjustment, including settlement of any such
Parent Adjustment, (ii) New Fluor shall control the defense or prosecution of
the portion of the Tax Contest directly and exclusively related to any New Fluor
Adjustment, including settlement of any such New Fluor Adjustment, and (iii) a
committee constituted as provided herein (the "Tax Contest Committee") shall
control the defense or prosecution of Joint Adjustments and any and all
administrative matters not directly and exclusively related to any Parent
Adjustment or New Fluor Adjustment. The Tax Contest Committee shall be comprised
of two persons, one person selected by Parent (as designated in writing to New
Fluor) and one person selected by New Fluor (as designated in writing to
Parent). Each person serving on the Tax Contest Committee shall continue to
serve unless and until he or she is replaced by the party designating such
person. Any and all matters to be decided by the Tax Contest Committee shall
require the agreement of both persons serving on the Tax Contest Committee. In
the event the Tax Contest Committee shall be deadlocked on any matter, the
provisions of Section 15 of this Agreement shall apply.

     (c)  Cooperation with Controlling Party. In the event that one or more
members of a Group (the "First Group Members") have the responsibility and
authority, pursuant to applicable Tax Law, to file or amend Tax Returns and to
take and/or do other actions related to a Tax Contest that, pursuant to this
Section 9.02, is subject to the control of a member of the other Group (the
"Second Group Member"), such First Group Members shall execute all such
documents and take all such actions as may be reasonably requested by the Second
Group Member for the purpose of implementing and effecting the Second Group
Member's defense and prosecution of such Tax Contest.

     (d)  Powers of Attorney. Each member of the Parent Group shall execute and
deliver to New Fluor and/or the members of the Tax Contest Committee, and each
member of the New Fluor Group shall execute and deliver to Parent and/or to the
members of the Tax

                                       40
<PAGE>

Contest Committee, any power of attorney reasonably requested by any such party
or person as necessary to allow it/them to control the defense or prosecution of
a Tax Contest in accordance with the provisions of Section 9.02(a) or Section
9.02(b), provided, however, that such power of attorney shall not expand the
rights of such controlling party or person beyond that provided for under
Section 9.02(a) or Section 9.02(b).

     (e)  Agreements Affecting Other Company. Notwithstanding the foregoing
provisions of this Section 9.02, a Company shall not agree to any Tax liability
for which the other Company may be liable under this Agreement, or compromise
any claim for any Tax Benefit to which another Company may be entitled under
this Agreement, without such other Company's written consent (which consent may
not be unreasonably withheld).

     Section 10.  Effective Date. This Agreement shall be effective on the
Distribution Date.

     Section 11.  Certain Representations and Covenants.

          (a)  No Inconsistent Plan or Intent. Each of A.T. Massey and New Fluor
hereby represents and warrants to the other that:

               (i)  neither it nor any member of its Group (which, in the case
of New Fluor, includes Parent through the Distribution Date) has taken, and as
of the Distribution Date neither it nor any member of its Group (which, in the
case of New Fluor, includes Parent through the Distribution Date) has a plan or
intention to take, any action that would result in any Tax liability being
imposed with respect to the Distribution pursuant to the application of the
provisions of Code Section 355(e); and

               (ii) neither it nor any member of its Group (which, in the case
of New Fluor, includes Parent through the Distribution Date) has taken, nor as
of the Distribution Date has any plan or intention to take, any other action
which is inconsistent with any material factual statements or representations in
the Ruling Request.

          (b)  Restriction on Prohibited Actions. Each of Parent and New Fluor
hereby covenants and agrees that following the Distribution it will not take any
action, and it will cause its Affiliates to refrain from taking any action,
which would result in a Tax treatment of the Transactions that is inconsistent
in any material respect with the Tax treatment of the Transactions as
contemplated in the Ruling Request or, if different, in the Ruling (any such
action, a "Prohibited Action"), unless such Prohibited Action is required by Law
or the person taking the action has obtained the prior written consent of the
other parties to this Agreement. Without limitation on the foregoing, the
parties intend that the restrictions on Prohibited Actions provided for herein
shall apply during and following the two-year restriction period described in
Section 11(c).

          (c)  Restriction on Certain Other Actions. Each of New Fluor and
Parent hereby covenants and agrees that prior to the second anniversary of the
Distribution it will not take, and it will cause its Affiliates to refrain from
taking, any action that would be inconsistent with any representations under
Section 11(a) if such party had planned or intended (as of the Distribution
Date) to take such action, provided, however, such an action may be taken during

                                       41
<PAGE>

such two-year period if such action is required by Law or the person taking the
action has obtained the prior written consent of the other parties to this
Agreement.

          (d)    Restriction on Amending or Supplementing Ruling Request. Each
of Parent and New Fluor hereby covenants and agrees that it will not file, and
it will cause its Affiliates to refrain from filing, any amendment or supplement
to the Ruling Request subsequent to the Distribution Date without the written
consent of the other parties to this Agreement.

     Section 12. Survival of Obligations.  The representations, warranties,
covenants and agreements set forth in this Agreement shall be unconditional and
absolute and shall remain in effect without limitation as to time.

     Section 13. Employee Matters. Each of the Companies agrees to utilize, or
cause its Affiliates to utilize, the alternative procedure set forth in Revenue
Procedure 96-60, 1996-2 C.B. 399 (if such Revenue Procedure is applicable), with
respect to wage reporting for employees who transfer from a member of one Group
to a member of the other Group in connection with the Transactions.

     Section 14. Mutual Covenants and Indemnifications.

          (a)   New Fluor. New Fluor hereby covenants and agrees that it will
(i) perform or cause to be performed all obligations of the members of the New
Fluor Group under this Agreement, including, without limitation, the obligations
of the members of the New Fluor Group to pay, when due, Tax liability payments
to Tax Authorities and payments to members of the Parent Group in accordance
with the provisions of Section 5, and (ii) indemnify and hold harmless Parent
and all other members of the Parent Group from and against any Losses (as
defined hereinbelow) incurred by any member of the Parent Group as a result of
any breach of any covenant, representation or warranty of New Fluor under this
Agreement or any failure by any member of the New Fluor Group to fully perform
its obligations under this Agreement.

          (b)   Parent. Parent hereby covenants and agrees that it will (i)
perform or cause to be performed all obligations of the members of the Parent
Group under this Agreement, including, without limitation, the obligations of
the members of the Parent Group to pay, when due, Tax liability payments to Tax
Authorities and payments to members of the New Fluor Group in accordance with
the provisions of Section 5, and (ii) indemnify and hold harmless New Fluor and
all other members of the New Fluor Group from and against any Losses incurred by
any member of the New Fluor Group as a result of any breach of any covenant,
representation or warranty of Parent and/or A.T. Massey under this Agreement or
any failure by any member of the Parent Group to fully perform its obligations
under this Agreement.

          (c)   Losses. For purposes of this Section 14, the term "Losses" means
any and all damages, liabilities, claims, demands, proceedings, settlements,
judgments, awards, fees, charges, Taxes, costs or other expenses (including,
without limitation, reasonable costs of attempting to avoid or in opposing the
imposition thereof, interest, penalties, costs of preparation and investigation,
and the reasonable fees, disbursements and expenses of attorneys, accountants

                                       42
<PAGE>

and other professional advisors, but not including the cost of "in-house"
attorneys, accountants and other employees of a party.)

          (d)  Tax Adjustments.

               (i)  The amount of any indemnification payment otherwise payable
under this Agreement or under the Distribution Agreement shall be (i) decreased
by the amount of any Federal or State Income Tax Benefit actually realized by
the indemnified party as a result of the Loss giving rise to the
indemnification, and (ii) increased by (A) the amount of any Federal or State
Income Tax required to be paid by the indemnified party as a result of its
accrual or receipt of the indemnification payment, plus (B) the amount of any
Federal or State Income Tax required to be paid by the indemnified party as a
result of its accrual or receipt of any payments payable pursuant to this
Section 14(d)(i). For all purposes of this Section 14(d), (i) the amount of any
State Income Tax Benefit or cost shall be based on a rate, which is deemed to
take into account the Federal Income Tax effect of such benefit or cost, of 4%;
(ii) a Tax Benefit is a reduction in the amount of Income Tax paid or due and
payable, whether realized as a refund or as a credit or other reduction in Tax
liability; (iii) the amount of any Tax Benefit or cost for any taxable period
will be the difference between (A) the amount of the indemnified party's Tax
liability taking into account the amount of Loss or indemnity payment, as
appropriate, actually included in computing taxable income for the current or
any prior taxable period and (B) the amount that would be the indemnified
party's Tax liability for the current or any prior taxable period (as
applicable) if such amount of Loss or indemnity payment were not taken into
account in computing taxable income; (iv) if the indemnified party files or is
included in a consolidated, combined, unitary or similar Income Tax Return for a
taxable period, the preceding amounts will be computed on the appropriate
consolidated, combined, unitary or similar basis for that taxable period; and
(v) the term "Loss" shall have the meaning specified in this Agreement or the
Distribution Agreement depending on whether the indemnification payment arises
under this Agreement or the Distribution Agreement. In the year an
indemnification payment is made, the parties shall cooperate to determine the
amount of adjustment (if any) to be made pursuant to this Section 14(d)(i). In
doing so, the amount of any Federal Income Tax Benefit or cost for the taxable
period in which the payment is to be made will be based on the indemnified
party's best estimate of such amount, which estimate shall be in writing (an
"Adjustment Estimate Notice") and shall include an explanation, in reasonable
detail, of the facts and assumptions underlying such estimate. Any payment
required pursuant to this Section 14(d)(i) shall be made on or before the later
of (x) the date on which the applicable indemnification payment is made pursuant
to this Agreement or the Distribution Agreement (as applicable), or (y) 10
business days following the date on which the indemnified party receives the
Adjustment Estimate Notice.

               (ii) Promptly after the indemnified party files its Federal
Income Tax Return for the taxable period as to which an Adjustment Estimate
Notice is given pursuant to Section 14(d)(i), the indemnified party shall notify
the indemnifying party in writing of the actual amount of the Federal Income Tax
Benefit or cost that was previously estimated and shall provide to the
indemnifying party the computation, in reasonable detail, of such actual amount
and such supporting documentation as the indemnifying party reasonably requests
to verify the computation. The parties shall cooperate in good faith to
determine the amount of any difference (the "True-Up Amount") between (i) the
amount that was paid by the indemnifying party based on the prior estimate (the
"Prior Payment") and (ii) the amount that would have been payable by

                                       43
<PAGE>

the indemnifying party if the parties had known the actual amount of such
benefit or cost. Within 3 business days following determination of the True-Up
Amount, the indemnifying party shall pay to the indemnified party or the
indemnified party shall pay to the indemnifying party, as appropriate, the True-
Up Amount, plus interest on the True-Up Amount at the Base Rate from the date of
the Prior Payment to the date the True-Up Amount is paid. In addition, if the
True-Up Amount is payable by the indemnifying party, the indemnifying party also
shall pay to the indemnified party the amount necessary to reimburse the
indemnified party for any Federal or State Income Tax cost incurred as a result
of its accrual or receipt of the True-Up Amount and any amounts payable pursuant
to this sentence. For this purpose, the Federal Income Tax rate applicable to
any taxable portion of the True-Up Amount and the amount payable pursuant to the
preceding sentence shall be deemed to be the same as the marginal rate
applicable to the indemnified party for the taxable period in which the Prior
Payment was made.

               (iii)  No adjustment in the amount of an indemnification payment
shall be made at the time of payment of such indemnification payment to take
into account any Federal or State Income Tax Benefit not actually realized in,
or any Federal or State Income Tax cost not actually paid or payable for, the
taxable period in which the indemnification payment is made or an earlier
period, whether or not any such benefit or cost may, under applicable Tax law,
be taken into account and realized or incurred in a future Tax Period. However,
if a Federal or State Income Tax Benefit or cost described in this Section 14(d)
is actually realized in or becomes payable for one or more taxable periods
(each, a "Subsequent Period") after the taxable period in which an
indemnification payment has been made, then (i) the indemnified party shall pay
to the indemnifying party an amount equal to the excess of such Tax Benefit over
such Tax cost for such Subsequent Period, or (ii) the indemnifying party shall
pay to the indemnified party an amount equal to the excess of such Tax cost over
such Tax Benefit for such Subsequent Period, plus the amount of any Federal or
State Income Tax required to be paid by the indemnified party as a result of its
accrual or receipt of any amounts payable by the indemnifying party pursuant to
this Section 14(d)(iii). For each Subsequent Period, the indemnified party shall
notify the indemnifying party in writing of the amount of any such Tax Benefit
or Tax cost no later than the date on which the indemnified party files its
Federal Income Tax Return for the Subsequent Period, with such notice (a
"Subsequent Period Adjustment Notice") to include an explanation, in reasonable
detail, of the facts and assumptions underlying the indemnifying party's
calculation of the payments required hereunder. The parties shall cooperate in
good faith to determine the amount payable by or to the indemnified party under
this paragraph with respect to any Subsequent Period. Any payment made more than
60 calendar days after (i) the date the indemnified party gives such Subsequent
Period Adjustment Notice to the indemnifying party, in the case of a payment to
the indemnified party, or (ii) the date the indemnified party files its Federal
Income Tax Return for the Subsequent Period, in the case of a payment by the
indemnified party, shall include interest at the Base Rate from the expiration
of such 60-day period to the date of payment. A Subsequent Period includes,
without limitation, any taxable period in which the indemnified party would have
been able to use a loss or credit if such loss or credit had not been used (or
was prevented from being generated) as a result of the inclusion of all or any
portion of an indemnification payment in the indemnified party's income.

               (iv)   The purpose of this Section 14(d) is to make the
indemnified party whole on an actual after-tax basis, and this Section is to be
construed accordingly (including making such adjustments as may be necessary to
take into account changes resulting from

                                       44
<PAGE>

amended Tax Returns, Tax audits and similar proceedings). The parties shall at
all times cooperate with each other in good faith to determine the amounts of
any payments required under this Section 14(d). The indemnifying party may at
any time request copies of the Tax Returns (and underlying work papers) for any
Tax Period which is relevant to the determination of adjustments to
indemnification payments under this Section 14(d) or other payments made
pursuant to this Section 14(d). If an indemnified party fails or refuses to give
any notice or take any other action required hereunder with respect to the
determination of any decrease to an indemnification payment or any payment
required to be made hereunder by the indemnified party to the indemnifying
party, such failure or refusal shall not adversely affect the indemnifying
party's rights hereunder, and appropriate action may be brought by the
indemnifying party to determine and/or enforce its rights hereunder.

               (v)  The parties agree and acknowledge that the provisions of
Sections 5.04(e), 5.05(c) and 5.05(d), and not the provisions of this Section
14, shall apply with respect to Tax adjustments related to Tax liability
payments and Tax Benefit payments made pursuant to Section 5, it being intended
that the provisions of this Section 14 are to apply with respect to Losses
incurred by a member of one Group as a result of a breach described in this
Section 14 by a member of the other Group.

          Section 15. Disputes; Governing Law; Consent to Jurisdiction;
Attorneys' Fees.

               (a)  Referral to Accounting Firm. If the parties cannot agree on
the application of this Agreement to any matter in dispute (a "Dispute"), then,
subject to the rights of the parties to seek a judicial resolution or remedy,
the Dispute shall be referred for resolution to Ernst & Young LLP or, if Ernst &
Young LLP is not then engaged by each Company as its certified public accounting
firm for purposes of auditing its financial statements, such other "Big Five"
accounting firm as the Tax Contest Committee shall select by lot (the
"Accounting Firm"). The Accounting Firm shall furnish written notice (the
"Accounting Firm Notice") to the parties of its resolution of any such Dispute
as soon as practical, but in any event no later than 45 days after its
acceptance of the matter for resolution, with such notice to set forth in
writing the grounds and reasoning underlying the Accounting Firm's decision.
Each party shall pay its own fees and expenses (including the fees and expenses
of its representatives) incurred in connection with the referral of the matter
to the Accounting Firm. All fees and expenses of the Accounting Firm in
connection with such referral shall be shared equally by the New Fluor Group and
the Parent Group. Notwithstanding any decision of the Accounting Firm, each
party shall retain its rights to seek a judicial resolution of (and/or any
available judicial remedies with respect to) any Dispute or any other matter
under this Agreement, it being understood that any party may seek such judicial
resolution or remedies at any time, whether before or after submission of a
Dispute to the Accounting Firm. If any such judicial action with respect to a
Dispute is commenced prior to the submission of the matter for resolution by the
Accounting Firm, or if submitted, prior to the Accounting Firm rendering its
decision, the Dispute shall not be submitted to the Accounting Firm or the
Accounting Firm shall cease activity on the Dispute without rendering a decision
(whichever may be applicable). All offers, promises, conduct and statements,
whether oral or written, made in the course of any submission of the Dispute to
the Accounting Firm by either party or the Accounting Firm or their respective
agents, members, managers, directors, officers, employees, experts or attorneys,
will be confidential, privileged and inadmissible for any purpose, including
impeachment, in any judicial proceedings related to the Dispute, provided,

                                       45
<PAGE>

however, that otherwise admissible or discoverable evidence will not be rendered
inadmissible or non-discoverable as a result of its use in any such submission
to the Accounting Firm.

          (b)  Governing Law. This Agreement and the transactions contemplated
hereby shall be construed in accordance with, and governed by, the Laws of the
State of New York without reference to choice of Law principles.

          (c)  Consent to Jurisdiction. Each of the parties hereto hereby
irrevocably submits to the nonexclusive jurisdiction of any United States
Federal or New York State court sitting in New York County in any action or
proceeding arising out of or relating to this Agreement, and irrevocably agrees
that all claims in respect of any such action or proceeding may be heard and
determined in any such United States Federal or New York State court. Each of
the parties hereto agrees to commence any action, suit or proceeding relating
hereto either in the United States District Court for the Southern District of
New York or, if for jurisdictional reasons such suit, action or other proceeding
may not be brought in such court, in the Supreme Court of the State of New York,
New York County. Each of the parties hereto further agrees that service of any
process, summons, notice or document by United States registered mail to such
party's respective address set forth in Section 18.01 shall be effective service
of process for any action, suit or proceeding in the State of New York with
respect to any matters to which it has submitted to jurisdiction as set forth
above in the immediately preceding sentence. Each of the parties hereto
irrevocably and unconditionally waives any objection to the laying of venue of
any action, suit or proceeding arising out of this Agreement or the transactions
contemplated hereby in (i) the Supreme Court of the State of New York, New York
County or (ii) the United States District Court for the Southern District of New
York, and hereby further irrevocably and unconditionally waives and agrees not
to plead or claim in any such court that any action, suit or proceeding brought
in any such court has been brought in an inconvenient forum.

          (iv) Attorneys' Fees. In the event any party to this Agreement brings
an action or proceeding for the breach or enforcement of this Agreement, the
prevailing party in such action or proceeding, whether or not such action or
proceeding proceeds to final judgment, shall be entitled to recover as an
element of its costs, and not as damages, such reasonable attorneys' fees as may
be awarded in the action, proceeding or appeal in addition to whatever other
relief the prevailing party may be entitled. For purposes of this Section, the
"prevailing party" shall be the party who is entitled to recover its costs; a
party not entitled to recover its costs shall not recover attorneys' fees. As
used herein the term "attorneys' fees" shall not include the cost of "in-house"
attorneys of any party.

     Section 16.  Intentionally Omitted.

     Section 17.  Expenses. Except as otherwise provided herein, each party and
its Affiliates shall bear their own expenses incurred in connection with
preparation of Tax Returns, Tax Contests, and other matters related to Taxes
under the provisions of this Agreement, provided, however, that (i) Parent shall
bear all expenses reasonably incurred by New Fluor or its Affiliates with
respect to the portion of any Tax Contest that is directly and exclusively
related to any Parent Adjustment and (ii) New Fluor shall bear all expenses
reasonably incurred by Parent or its Affiliates with respect to the portion of
any Tax Contest that is directly and exclusively related to

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<PAGE>

any New Fluor Adjustment. For purposes of this Agreement, expenses shall include
out-of-pocket expenses, but shall not include employee and other "in-house"
resource costs.

     Section 18.  General Provisions.

     18.01  Addresses and Notices. Any notice, demand, request or report
(collectively, a "Notice") required or permitted to be given or made to any
party under this Agreement to another party shall be in writing and shall be
deemed given or made (i) on the date of delivery, if delivered in person to a
party at such party's address as specified hereunder by Federal Express, United
Parcel Service or other nationally recognized courier service; or (ii) two days
following the date on which the Notice is sent, if sent by first class mail
return receipt requested, postage prepaid and properly addressed to the party's
address as specified hereunder; or (iii) upon receipt of confirmation of
transmission if transmitted by facsimile to the facsimile number specified
hereunder, in each case to the relevant party's address and to the attention of
the General Counsel and the Chief Financial Officer (one copy to each) as
follows:

     If to Parent or      Massey Energy Company
     A.T. Massey:         4 North 4/th/ Street
                          Richmond, VA 23219

                          Att'n: General Counsel
                          Facsimile: (804) 788-1804

                          Att'n:  Chief Financial Officer
                          Facsimile (804) 788-1853


     If to New Fluor:     Fluor Corporation
                          One Enterprise Drive
                          Aliso Viejo, CA 92656-2606

                          Att'n: General Counsel
                          Facsimile: (949) 349-5454

                          Att'n:  Chief Financial Officer
                          Facsimile: (949) 349-5525

A party may change the address and/or facsimile number for receiving Notices
under this Agreement by providing written notice of the change of address to the
other party.

     18.02  Binding Effect. This Agreement shall be binding upon and inure to
the benefit of the parties hereto and their respective successors and permitted
assigns. Neither party may assign all or any part of its rights or interests
under this Agreement or delegate all or any part of its duties under this
Agreement without the express prior written consent of the other party. Nothing
contained in this Agreement, express or implied, is intended to confer upon any
person

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<PAGE>

or entity, other than the parties hereto, their Affiliates and their successors
and assigns, any rights or remedies under or by reason of this Agreement.

     18.03  Waiver. No failure by any party to insist upon the strict
performance of any obligation under this Agreement or to exercise any right or
remedy under this Agreement shall constitute a waiver of any such obligation,
right, or remedy or of any other obligations, rights, or remedies under this
Agreement.

     18.04. Invalidity of Provisions. If any provision of this Agreement is or
becomes invalid, illegal or unenforceable in any respect, the validity,
legality, and enforceability of the remaining provisions contained herein shall
not be affected thereby.

     18.05  Further Action. The parties shall execute and deliver all documents,
provide all information, and take or refrain from taking action as may be
necessary or appropriate to achieve the purposes of this Agreement.

     18.06  Integration. This Agreement constitutes the entire agreement among
the parties pertaining to the subject matter of this Agreement and supersedes
all prior agreements and understandings pertaining thereto. In the event of any
inconsistency between this Agreement and the Distribution Agreement or any other
agreements relating to the transactions contemplated by the Distribution
Agreement, the provisions of this Agreement shall control.

     18.07  Construction. The language in all parts of this Agreement shall in
all cases be construed according to its fair meaning and shall not be strictly
construed for or against any party.

     18.08  No Double Recovery; Subrogation. No provision of this Agreement
shall be construed to provide an indemnity or other recovery for any costs,
damages, or other amounts for which the damaged party has been fully compensated
under any other provision of this Agreement or under any other agreement or
action at Law or equity. A party shall not be required to exhaust all remedies
available under other agreements or at Law or equity before recovering under the
remedies provided in this Agreement. Subject to any limitations provided in this
Agreement, a party making a payment hereunder to or for the benefit of another
party shall be subrogated to all rights of the other party for recovery from any
third party.

     18.09  Counterparts. This Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, and all of which, taken
together, shall constitute one and the same instrument.

     18.10  Amendments. This Agreement may be amended, modified or supplemented
only by a written agreement signed by the parties hereto.

                            [SIGNATURE PAGE FOLLOWS]

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<PAGE>

     IN WITNESS WHEREOF, the parties have caused this Agreement to be executed
by their respective officers as of the date set forth above.

                              FLUOR CORPORATION
                              a Delaware corporation incorporated in 1978
                              (to be named "Massey Energy Company"
                              following the Distribution)


                              By:  /s/ L. N. Fisher
                                   ------------------------------------
                              Name:  L. N. Fisher
                              Title: Senior Vice President-Law
                                     and Secretary


                              FLUOR CORPORATION
                              a Delaware corporation incorporated in 2000


                              By:  /s/ S. F. Hull
                                   ------------------------------------
                              Name:  S. F. Hull
                              Title: Vice President and Treasurer


                              A.T. MASSEY COAL COMPANY, INC.


                              By:  /s/ Jeffrey M. Jarosinski
                                   ------------------------------------
                              Name:  Jeffrey M. Jarosinski
                              Title: Vice President and Chief Financial Officer

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