ALLEGHANY CORP /DE
10-K, 1999-03-18
TITLE INSURANCE
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                            ------------------------
 
                                   FORM 10-K
 
[X]   ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
     SECURITIES EXCHANGE ACT OF 1934
 
                  FOR THE FISCAL YEAR ENDED DECEMBER 31, 1998
 
[ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
     SECURITIES EXCHANGE ACT OF 1934
 
           FOR THE TRANSITION PERIOD FROM             TO
 
                         COMMISSION FILE NUMBER 1-9371
 
                             ALLEGHANY CORPORATION
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
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<S>                                              <C>
                    DELAWARE                                        51-0283071
        (STATE OR OTHER JURISDICTION OF                          (I.R.S. EMPLOYER
         INCORPORATION OR ORGANIZATION)                       IDENTIFICATION NUMBER)
      375 PARK AVENUE, NEW YORK, NEW YORK                             10152
    (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                        (ZIP CODE)
</TABLE>
 
       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE:  212/752-1356
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(B) OF THE ACT:
 
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                                                              NAME OF EACH EXCHANGE
              TITLE OF EACH CLASS                              ON WHICH REGISTERED
              -------------------                             ---------------------
<S>                                              <C>
           COMMON STOCK, $1 PAR VALUE                        NEW YORK STOCK EXCHANGE
</TABLE>
 
          SECURITIES REGISTERED PURSUANT TO SECTION 12(G) OF THE ACT:
                                 NOT APPLICABLE
 
     Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days:
 
                                 Yes [X]     No
                                                ------
 
     Indicate by check mark if disclosure of delinquent filers pursuant to Item
405 of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to this
Form 10-K.  [ ]
 
     As of March 1, 1999, 7,217,848 shares of Common Stock were outstanding, and
the aggregate market value (based upon the closing price of these shares on the
New York Stock Exchange) of the shares of Common Stock of Alleghany Corporation
held by non-affiliates was $1,065,506,208.
 
                      DOCUMENTS INCORPORATED BY REFERENCE
 
     Portions of the following documents are incorporated by reference into the
indicated part(s) of this Report:
 
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                                                                  PART
                                                                  ----
<S>                                                             <C>
Annual Report to Stockholders of Alleghany Corporation for      I and II
  the year 1998
Proxy Statement relating to Annual Meeting of Stockholders        III
of Alleghany Corporation to be held on April 23, 1999
</TABLE>
 
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                             ALLEGHANY CORPORATION
 
                           ANNUAL REPORT ON FORM 10-K
                      FOR THE YEAR ENDED DECEMBER 31, 1998
 
                               TABLE OF CONTENTS
 
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                                           DESCRIPTION                           PAGE
                                           -----------                           ----
<S>                <C>                                                           <C>
                                       PART I
Item 1.            Business....................................................    2
Item 2.            Properties..................................................   26
Item 3.            Legal Proceedings...........................................   29
Item 4.            Submission of Matters to a Vote of Security Holders.........   30
Supplemental Item  Executive Officers of Registrant............................   30
 
                                       PART II
Item 5.            Market for Registrant's Common Equity and Related
                     Stockholder Matters.......................................   30
Item 6.            Selected Financial Data.....................................   30
Item 7.            Management's Discussion and Analysis of Financial Condition
                     and Results of Operations.................................   31
Item 7A            Quantitative and Qualitative Disclosures About Market
                     Risk......................................................   31
Item 8.            Financial Statements and Supplementary Data.................   31
Item 9.            Changes in and Disagreements With Accountants on Accounting
                     and Financial Disclosure..................................   31
 
                                      PART III
Item 10.           Directors and Executive Officers of Registrant..............   31
Item 11.           Executive Compensation......................................   31
Item 12.           Security Ownership of Certain Beneficial Owners and
                     Management................................................   31
Item 13.           Certain Relationships and Related Transactions..............   31
 
                                       PART IV
Item 14.           Exhibits, Financial Statement Schedules and Reports on Form
                     8-K.......................................................   32
Signatures.....................................................................   39
Index to Financial Statement Schedule..........................................
FINANCIAL STATEMENT SCHEDULES..................................................
INDEPENDENT AUDITORS' REPORT ON FINANCIAL STATEMENT SCHEDULES..................
Index to Exhibits..............................................................
EXHIBITS.......................................................................
</TABLE>
 
                                        1
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                                     PART I
 
ITEM 1.  BUSINESS.
 
     Alleghany Corporation ("Alleghany") was incorporated in 1984 under the laws
of the State of Delaware. In December 1986, Alleghany succeeded to the business
of its parent company, Alleghany Corporation, a Maryland corporation
incorporated in 1929, upon the parent company's liquidation.
 
     Alleghany's principal executive offices are located at 375 Park Avenue, New
York, New York 10152 and its telephone number is (212) 752-1356. Alleghany is
engaged, through its subsidiary Underwriters Re Group, Inc. ("Underwriters Re
Group") and its subsidiaries, in the property and casualty reinsurance and
insurance businesses. Alleghany is also engaged, through its subsidiary
Alleghany Asset Management, Inc. ("Alleghany Asset Management") and its
subsidiaries, in the financial services business. In addition, Alleghany is
engaged, through its subsidiaries World Minerals Inc. ("World Minerals"), Celite
Corporation ("Celite") and Harborlite Corporation ("Harborlite") and their
subsidiaries, in the industrial minerals business. Alleghany conducts a steel
fastener importing and distribution business through its Heads and Threads
division.
 
     Until June 17, 1998, Alleghany was also engaged, through its subsidiaries
Chicago Title and Trust Company ("CT&T"), Chicago Title Insurance Company,
Security Union Title Insurance Company and Ticor Title Insurance Company and
their subsidiaries, in the sale and underwriting of title insurance and in other
real estate-related services businesses. On that date, Alleghany completed the
tax-free spin-off of Chicago Title Corporation, the newly formed holding company
of CT&T, to Alleghany stockholders. As a part of the spin-off, the common stock
of Chicago Title Corporation was listed on the New York Stock Exchange under the
symbol "CTZ."
 
     Until October 31, 1994, Alleghany was also engaged, through its subsidiary
Sacramento Savings Bank ("Sacramento Savings") in retail banking. On that date,
Alleghany completed the sale of Sacramento Savings and an ancillary company to
First Interstate Bank of California for a cash purchase price of $331 million.
As part of the transaction, Alleghany, through its wholly owned subsidiary
Alleghany Properties, Inc. ("API"), purchased real estate and real
estate-related assets of Sacramento Savings for a purchase price of about $116
million.
 
     During 1994 and early 1995, with temporary borrowings under Alleghany's
revolving credit agreement, the proceeds from the sale of Sacramento Savings and
cash on hand, Alleghany and its subsidiaries acquired a substantial number of
shares of common stock of Santa Fe Pacific Corporation ("Santa Fe"). On
September 22, 1995, Santa Fe and Burlington Northern, Inc. merged under a new
holding company named Burlington Northern Santa Fe Corporation ("BNSF"). As a
result of the merger, the shares of Santa Fe beneficially owned by Alleghany
were converted into about 7.43 million shares of BNSF, or about 4.7 percent of
BNSF's currently outstanding common stock. BNSF is engaged primarily in rail
transportation. BNSF owns one of the largest railroad networks in North America,
providing transportation services to shippers throughout the western two-thirds
of the United States as well as to Canada and Mexico.
 
     In 1998, Alleghany studied a number of potential acquisitions. Alleghany
intends to continue to expand its operations through internal growth at its
subsidiaries as well as through possible operating-company acquisitions and
investments.
 
     Reference is made to Items 7 and 8 of this Report for further information
about the business of Alleghany in 1998. The consolidated financial statements
of Alleghany, incorporated by reference in Item 8 of this Report, include the
accounts of Alleghany and its subsidiaries for all periods presented.
 
           PROPERTY AND CASUALTY REINSURANCE AND INSURANCE BUSINESSES
 
GENERAL
 
     Underwriters Re Group, Inc. ("URG"), formerly known as URC Holdings Corp.,
headquartered in Calabasas, California, is engaged in the property and casualty
reinsurance and insurance businesses, through
 
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<PAGE>   4
 
Underwriters Reinsurance Company ("Underwriters") and its primary insurance
subsidiaries (collectively, "Underwriters Re Group"). Underwriters was organized
in 1867 as a primary insurer in New York under the name "Buffalo German
Insurance Company." By 1970, Underwriters had become principally a reinsurer,
and in 1977 it changed its corporate domicile to New Hampshire. Underwriters
operates throughout the United States, including Puerto Rico and the District of
Columbia, and Canada, either as a licensed carrier or accredited reinsurer, and
has branch offices in Chicago, Houston, New York and Calabasas.
 
     On October 23, 1998, Underwriters acquired Venton Holdings Ltd. ("VHL") for
approximately $181.1 million in cash and Alleghany common stock valued at
approximately $8.9 million. VHL, through its subsidiaries, is a managing agent
and provider of corporate capital for syndicates in the Lloyd's insurance
market, and also has operations in Bermuda. In connection with the purchase,
Underwriters established a letter of credit facility in the amount of $225
million to support the corporate capital provided by VHL to the Lloyd's
syndicates that it manages. The acquisition of VHL and its subsidiaries is
expected to enhance the competitive position of Underwriters Re Group by
providing access to the Lloyd's and Bermuda markets, as well as diversifying the
group's growth and earnings prospects outside the United States.
 
     In October 1993, Alleghany acquired approximately 93 percent of URG, and
thereafter contributed about $51 million in 1993 and $100 million in 1994 to the
capital of Underwriters Re Group. The capital contribution in 1994 was in the
form of about 6 million shares of Santa Fe common stock, which was subsequently
converted into approximately 7.4 million shares of BNSF common stock. On October
3, 1997, Alleghany exchanged shares of Alleghany Common Stock for shares of
common stock of URG held by ten employees of URG and representing 2.7 percent of
the outstanding common stock of URG. Alleghany now owns all of the issued and
outstanding shares of common stock of URG. As of December 31, 1998,
Underwriters' statutory surplus was $602.6 million.
 
  Reinsurance
 
     Since 1995, Underwriters has been rated "A+ (Superior)" by A.M. Best
Company, Inc., an independent insurance industry rating organization ("Best's").
Best's publications indicate that such rating is assigned to companies which
Best's believes have achieved superior overall performance and have a very
strong ability to meet their obligations over a long period of time. According
to Best's, the rating reflects Underwriters' consistently strong operating
results, solid capitalization and strong presence in the broker market.
 
     Additionally, since 1995 Underwriters has been rated "AA- (Excellent)" by
Standard & Poor's. Standard & Poor's publications indicate that this rating is
assigned to companies with strong capacity to meet policyholders' obligations
under a variety of economic and underwriting conditions.
 
  Primary Insurance
 
     Underwriters Re Group established Commercial Underwriters Insurance Company
("CUIC") at the end of 1992, acquired Underwriters Insurance Company ("UIC"), an
inactive Nebraska insurance company in 1994, and established Newmarket
Underwriters Insurance Company ("NUIC") in 1996 to capitalize on advantageous
market conditions for certain primary insurance business lines. In connection
with the acquisition of UIC, Underwriters was indemnified for all losses that
occurred prior to the acquisition date. CUIC, UIC and NUIC are rated "A+
(Superior)" by Best's because Underwriters reinsures a significant share of
their business.
 
     CUIC is a California property and casualty insurance company that focuses
on specialized primary commercial insurance, individual commercial excess
liability insurance, commercial surplus lines, and specialized personal lines
liability insurance, including excess private passenger liability and
comprehensive personal liability insurance. CUIC conducts its business in
California and New York on an admitted basis and in 45 other states, Guam and
the District of Columbia on an approved nonadmitted basis. In 1998, CUIC
generated $82.9 million in direct written premiums and retained net written
premiums of $29.8 million representing 6.8 percent of Underwriters Re Group's
consolidated net written premiums in 1998.
 
                                        3
<PAGE>   5
 
     UIC has licenses to write primary property and casualty insurance in 48
states and the District of Columbia and focuses on marine insurance, primary
liability policies for medium- to large-sized businesses and certain
professional liability coverages. In 1998, UIC generated $57.2 million in direct
written premiums and retained net written premiums of $21.0 million,
constituting 4.8 percent of Underwriters Re Group's consolidated net written
premiums in 1998.
 
     NUIC is licensed to write property and casualty insurance in New Hampshire,
and is qualified on a non-admitted basis in California and New York. Its focus
is on general liability policies for medium to large-sized businesses. In 1998,
NUIC generated $8.6 million in direct written premiums and retained net written
premiums of $3.1 million, constituting 0.7 percent of Underwriters Re Group's
consolidated net written premiums in 1998.
 
     The Center Insurance Services, Inc. ("The Center"), was established in 1995
as a wholly owned subsidiary of URG to capitalize on the considerable expertise
of certain individuals in handling specialized classes of primary business. The
Center's four subsidiaries act as agents and underwrite business on behalf of
CUIC, UIC, NUIC and at present, to a lesser extent, non-affiliated insurers.
Business underwritten by The Center includes marine insurance, products
liability insurance, general liability insurance for certain insureds with
self-insured retentions and vehicle service contracts. During 1998,
approximately $79.8 million of gross written premiums was underwritten by The
Center. The Center's subsidiaries have offices in Kennesaw and Roswell, Georgia,
New York, New York and St. Louis, Missouri.
 
  International
 
     Representative offices were established in Barbados at the end of 1995 and
in London, England in 1996 to capitalize on international underwriting
opportunities. In addition, in 1995, Underwriters Re Group made a strategic
investment in a reinsurance company in Barbados.
 
  Venton Holdings Ltd.
 
     Underwriters acquired VHL in October 1998. Due to the complexity of
converting Lloyd's accounting information to U.S. accounting principles, the
consolidated financial statements of Alleghany incorporated by reference in Item
8 of this Report do not include the accounts of VHL, except that Alleghany's
consolidated balance sheet as of December 31, 1998 includes VHL's accounts as of
September 30, 1998, which date is being used as the opening balance sheet date.
VHL's accounts will be included in the consolidated financial statements of
Alleghany on a one-quarter lag. Therefore, VHL's results from the date of
purchase through December 31, 1998 will be included in Alleghany's consolidated
financial statements for the quarter ending March 31, 1999.
 
     VHL participates in the Lloyd's market through its subsidiaries Venton
Underwriting Agencies Ltd. ("Venton"), and Venton Underwriting Ltd. ("VUL").
Venton is a managing agency for three Lloyd's syndicates: Syndicate 376
(non-marine), Syndicate 1183 (marine) and Syndicate 1207 (non-marine). In 1998,
the three syndicates had available capacity of approximately L271 million
(equivalent to a maximum gross premiums written of $580 million); such capacity
increased to L301.8 million for 1999. Venton is currently the thirteenth-largest
managing agency in Lloyd's, representing about 2.9 percent of the market's 1999
capacity. VUL and two affiliated companies are corporate names at Lloyd's which
provide capital to the syndicates managed by Venton, including, on an exclusive
basis, to Syndicate 1207. They provided approximately L169.1 million, or 62.3
percent, of the available capacity of the Venton-managed syndicates for 1998,
and approximately L234.4 million, or 77.7 percent, of such syndicates' available
capacity for 1999, the remainder in each year being supplied by non-affiliated
persons. Corporate capital was first admitted by Lloyd's in 1994 in response to
shortages of capacity due to poor results in the Lloyd's market prior to 1993.
Since then, Venton's strategy has been to increase its proportion of corporate
capital. The following discussion relates to the Venton-managed syndicates in
general, including the participation therein by VUL and its two affiliated
corporate capital providers.
 
     Approximately two-thirds of Venton's 1998 gross premiums written were
generated by its primary insurance operations, with reinsurance comprising the
remaining one-third. Venton's insurance and reinsur-
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ance operations focus on specialty commercial lines that Venton believes provide
opportunities for strong profitability. Through the syndicates it manages,
Venton underwrites risks across diverse commercial classes, including property
(marine and non-marine) and casualty (such as financial institution and
directors and officers liability insurance), at varying risk layers from primary
coverage to high layer excess of loss. The majority of Venton's casualty
business is on a claims-made basis. Venton's risks are located around the world,
primarily in the United States, the United Kingdom, Western Europe, Canada and
Australia. About half of Venton's business in the 1998 year of account involved
insureds located in the United States and risks located in the United States of
non-U.S. insureds.
 
     In general, Lloyd's syndicates, including those managed by Venton, may only
access business through Lloyd's brokers. The Venton-managed syndicates have
strong and long-standing relationships with the principal brokers in the Lloyd's
market. Reflecting the typical level of concentration, Aon, J&H Marsh & McLennan
and Willis Faber produced a substantial portion of the business of the
Venton-managed syndicates done in the Lloyd's market. Without the replacement of
business from other brokers, the termination of relationships with any one of
these brokers could have a material adverse effect on Venton's results of
operations. No such terminations are anticipated.
 
     For certain lines of business, it is possible to utilize a service company
to access and service business from both Lloyd's and non-Lloyd's brokers. Venton
manages two such service companies, Yachtsure Ltd. and Venton Risk Services Ltd.
These companies deal predominantly with Lloyd's brokers but also access business
from non-Lloyd's brokers in the U.K. and overseas.
 
     The Venton-managed syndicates establish reserves for the estimated unpaid
liability for losses and loss expenses for claims made under the terms of its
policies and agreements. Such reserves are determined by Venton claims personnel
based upon a variety of factors, including an evaluation of the nature of the
claim, the coverage afforded by the policy, the jurisdiction in which the claim
is brought and general economic and social conditions. Additional reserves are
established on an aggregate basis to provide for losses incurred but not yet
reported. Venton engages an independent actuarial firm to review the reserving
methods and assumptions of the syndicates. Although such reserves are
necessarily based on estimates and therefore the ultimate losses and loss
expenses may differ from such reserves, the management of Venton believes that
reserves for losses at September 30, 1998 are adequate.
 
     The investment policy of the Venton-managed syndicates is to maximize
overall return, in accordance with guidelines established by Lloyd's and
Underwriters. With rare exception, Lloyd's syndicates are required to provide
profit distributions to members (both individual names and corporate capital
providers) annually upon the close of each three-year underwriting cycle, and
portfolio managers engaged by Venton to manage the syndicates' portfolios have
adopted a conservative approach to investments. Investments, which are held in
trust at Lloyd's, consist mainly of cash and cash equivalents and bonds issued
by governments or public authorities; these investments constituted about 90
percent of the syndicates' total investment portfolio as of September 30, 1998.
 
     The Venton-managed syndicates compete for business with other Lloyd's
syndicates and major international insurers and reinsurers. On international
risks, competition may also come from the domestic insurers in the country of
origin of the insured. Competition is based on many factors, including
underwriting expertise, premiums charged and overall financial strength.
 
     Venton's operations in the United Kingdom are subject to regulation by
Lloyd's. Lloyd's Regulatory Division establishes rules and regulations that must
be adhered to by all businesses in the Lloyd's market. These cover such areas as
capital adequacy, related party transactions, ownership and control, standards
of conduct and conflicts of interest. The prior approval of Lloyd's was required
for the acquisition of Venton by Underwriters.
 
     Lloyd's is at present primarily self-governing, subject to overall
supervision by the Treasury in the U.K.; however, the U.K. government has
announced the establishment of the Financial Services Authority as a single
independent regulator that will supervise the securities, bank and insurance
industries, including Lloyd's. The framework for such supervision is currently
under discussion by relevant authorities in the U.K.
 
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<PAGE>   7
 
     VHL and its subsidiaries employed 94 persons as of December 31, 1998.
 
                                        6
<PAGE>   8
 
     Other than as specifically noted, the following information relating to
Underwriters Re Group and its subsidiaries does not include information relating
to VHL and its subsidiaries.
 
GENERAL DESCRIPTION OF REINSURANCE
 
     Reinsurance is an agreement between two insurance companies in which one
company, the "reinsurer," agrees to indemnify the other company, the "cedent" or
"ceding company," for all or part of the insurance risks underwritten by the
ceding company. Reinsurance provides ceding companies with three major benefits:
(i) it reduces net liability on individual risks, (ii) it protects against
catastrophic losses, and (iii) it helps to maintain acceptable surplus and
reserve ratios. In addition, reinsurance provides the ceding company with
additional underwriting capacity. Ordinarily, a ceding company will enter into a
reinsurance agreement only if it will receive credit for the reinsurance ceded
on its statutory financial statements. In general, such credit is allowed if the
reinsurer meets the licensing and accreditation requirements of the ceding
company's domicile, or the reinsurance obligations are collateralized by letters
of credit, funds withheld or pledged trust agreements.
 
     In general, property insurance protects the insured against financial loss
arising out of loss of property or its use caused by an insured peril. Casualty
insurance protects the insured against financial loss arising out of the
insured's obligation to others for loss or damage to persons or property. While
both property and casualty reinsurance may involve a high degree of loss
volatility, property losses are generally reported within a relatively short
time period after the event; in contrast, there tends to be a significant time
lag in the reporting and payment of casualty claims. Consequently, an insurer
generally knows of the losses associated with property risks in a shorter time
than losses associated with casualty risks.
 
     Underwriters provides reinsurance on both a treaty and a facultative basis.
Treaty reinsurance is based on a standing arrangement (a "treaty"), usually for
a year, between a cedent and a reinsurer for the cession and assumption of a
certain class of risk specified in such treaty. Under most treaties, the cedent
is obligated to offer, and the reinsurer is obligated to accept, a specified
portion of a class of risk underwritten by the cedent. Reinsurers assume classes
of risk under treaties without having reviewed each individual risk.
Alternatively, facultative certificate reinsurance is the reinsurance of
individual risks. Unlike treaty reinsurance, in the case of facultative
reinsurance contracts, a reinsurer separately rates and underwrites each
individual risk and is free to accept or reject each risk offered by the cedent.
Facultative reinsurance is normally purchased by insurance companies for risks
not otherwise covered or covered only in part by their reinsurance treaties, and
for unusual risks.
 
     Underwriters writes treaty and facultative reinsurance on both a pro rata
and excess of loss basis. Under pro rata reinsurance contracts, the ceding
company and reinsurer share the premiums as well as the losses and expenses of
any single risk, or an entire group of risks, based upon contractually defined
rates. Under excess of loss reinsurance contracts, the reinsurer agrees to
reimburse the ceding company for all losses in excess of a predetermined amount
(commonly referred to as the cedent's "retention"), generally up to a
predetermined limit. Excess of loss reinsurance is often written in "layers" or
levels, with one reinsurer assuming the risk of loss on the primary insurance
policy in excess of the cedent's retention level up to a predetermined level,
above which the risk of loss is assumed by another reinsurer or reverts to the
cedent. Excess of loss reinsurance allows the reinsurer to better control the
relationship of the premium charged to the related exposure assumed by it. The
reinsurer assuming the risk immediately above the cedent's retention level is
said to write "working layer" or "low layer" excess of loss reinsurance. A loss
that reaches just beyond a cedent's retention level would create a loss for such
cedent's low layer reinsurers but would not adversely affect the reinsurers on
higher layers.
 
MARKETING
 
  Reinsurance
 
     An important element of Underwriters' strategy is to respond quickly to
market opportunities (such as increased demand or more favorable pricing) by
adjusting the mix of property and casualty business it writes. In recent years,
Underwriters has taken advantage of such market opportunities by increasing its
writings of
 
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<PAGE>   9
 
marine and aviation, property catastrophe, clash, homeowners and workers
compensation coverages and certain excess and surplus lines.
 
     Underwriters concentrates on coverages which require a relatively high
degree of underwriting or actuarial expertise, including certain excess and
surplus lines programs, umbrella liability and directors and officers'
liability. Such expertise is also required for certain business that
Underwriters has developed in nontraditional areas, such as providing capital in
combination with reinsurance and providing reinsurance to alternative risk
markets, including risk retention groups, captives, underwriting syndicates and
self-insured funds and associations. Nontraditional reinsurance may also refer
to reinsurance contracts which limit exposure to loss through the use of
aggregate loss limits, loss ratio caps or other loss containment features.
Underwriters believes that coverages which require high levels of underwriting
or actuarial expertise offer greater potential for favorable results than more
general coverages, based on current market conditions.
 
     In 1998, Underwriters wrote 58% of its treaty business and all of its
facultative certificate business through reinsurance brokers. The remaining
treaty business was principally reinsurance of portions of the primary insurance
underwritten by subsidiaries of Underwriters. By working primarily through
brokers, Underwriters does not need to maintain a large sales organization
which, during periods of reduced premium volume, could result in significant
non-productive overhead. In addition, management believes that submissions from
the broker market, including those for certain targeted specialty coverages, are
more numerous and diverse than would be available through a salaried sales
organization. Consequently, Underwriters is able to exercise greater selectivity
than would usually be possible in dealing directly with ceding companies. As a
result of certain of Underwriters' subsidiaries placing reinsurance on their
primary business through reinsurance brokers, management believes that such
brokers may also bring more reinsurance opportunities to Underwriters.
 
     Reinsurance brokers regularly approach Underwriters for quotations on
reinsurance being placed on behalf of ceding companies. In 1998, Underwriters
paid brokers $10.0 million in commissions, which represents approximately 2.0%
of its gross written premiums of $505.9 million. Underwriters' five leading
brokers, accounted for 51% of Underwriters' gross written premiums in 1998. Over
this period, Guy Carpenter & Co., Jardin Thompson Graham Ltd. and E.W. Blanch
Company accounted for 14.6%, 11.6% and 10.9% of such premiums, respectively, and
no other broker accounted for more than 10% of such premiums. The brokers that
account for relatively large percentages of gross written premiums tend to vary
from year to year. Management does not believe that the termination of its
business with any one broker would have a material effect on Underwriters Re
Group's financial condition or results of operations.
 
     A significant percentage of Underwriters' gross written premiums are
generally obtained from a relatively small number of ceding companies. In 1998,
approximately 27% of gross written premiums were obtained from Underwriters' ten
largest unaffiliated ceding companies. No unaffiliated ceding company accounted
for more than 10% of such premiums. The ceding companies that account for
relatively large percentages of gross written premiums tend to vary from year to
year. Management does not believe that the loss of any one ceding company
account would have a material effect on Underwriters Re Group's financial
condition or results of operations.
 
  Primary Insurance
 
     Insurance is purchased from the primary insurance companies of Underwriters
Re Group through retail and wholesale agents and brokers. These professional
intermediaries are acquainted with the product lines and custom coverage
capabilities of Underwriters Re Group's primary insurance companies, which
generally concentrate on hard to place risks and markets neglected by the
industry. The custom capabilities offered include access to nonadmitted
companies that operate under Underwriters Re Group and carry Underwriters'
Best's rating.
 
                                        7
<PAGE>   10
 
UNDERWRITING OPERATIONS
 
  Reinsurance
 
     Underwriters maintains a disciplined underwriting program with a focus on
generating profitable business rather than on increasing market share.
Underwriters has maintained a defensive underwriting posture by reducing
writings in lines of business that offer inadequate contract terms. Another
factor supporting Underwriters' underwriting discipline is its focus on low
level attachment points (i.e., dollar-levels at which risk is assumed). While
such layers are generally characterized by greater loss frequency, they are also
characterized by lower loss severity and quicker loss settlement than layers
with higher attachment points. Management believes that these factors result in
greater predictability of losses, which improves Underwriters' ability to
analyze its exposure on each contract and to price such exposure appropriately.
 
     In addition, Underwriters seeks to serve as lead or co-lead underwriter on
its treaties. Management believes that, as lead or co-lead underwriter,
Underwriters is able to influence more effectively the pricing and terms of the
treaties into which it enters and thereby achieve better underwriting results.
During 1998, Underwriters acted as lead or co-lead underwriter on a majority of
its treaty business.
 
     Treaty reinsurance generated approximately $378 million, or 99%, of
Underwriters' net written premiums in 1998. Facultative certificate reinsurance
is no longer a significant source of premiums. Casualty lines represented
approximately 65% of Underwriters Re Group's net written premiums, with the
remainder represented by property lines. Reinsurance written on an excess of
loss basis represented approximately 50% of Underwriters' net reinsurance
written premiums, with reinsurance written on a pro rata basis representing the
balance. In 1998, Underwriters Re Group's net written premiums increased $24.0
million, or 5.8%, from 1997. Management believes that the increase in such
premiums is attributable primarily to growth in Underwriters Re Group's primary
insurance operations.
 
     Underwriters generally wrote up to $2.0 million per reinsurance risk in
1998 on a net basis. In the case of reinsurance of certain clash coverage,
Underwriters has written up to $2.5 million on a net basis and in limited
circumstances has accepted more. The largest net risk assumed in 1998 was $13.3
million.
 
  Primary Insurance
 
     Underwriters Re Group's underwriting strategy is to identify insurance
opportunities that can be profitably underwritten. Such business is generally in
less competitive segments of the overall insurance marketplace because they
frequently require a higher level of underwriting expertise or are not viewed as
acceptable in conventional markets for some other reason. Many of the classes
and risks underwritten are in otherwise normally accepted categories but are
viewed as nonstandard due to past loss history. Business written that is viewed
as requiring special expertise would include marine insurance, professional
liability and errors and omissions insurance. Risks are underwritten by
employees of the primary companies and by both affiliated and unaffiliated
underwriting agents. Underwriters Re Group wrote up to $1.0 million per primary
insurance risk in 1998 on a net basis.
 
RETROCESSIONAL AND REINSURANCE ARRANGEMENTS
 
     A reinsurer often reinsures some of its risk with other reinsurers
("retrocessionaires") pursuant to retrocessional agreements, and pays such
retrocessionaires a portion of the premiums it receives. Reinsurance companies
enter into retrocessional agreements for the same reasons that primary insurers
purchase reinsurance.
 
     Underwriters has retrocessional agreements with a number of domestic and
international reinsurance companies. In the event that a retrocessionaire is
unable to meet its obligations assumed under the retrocessional agreement,
Underwriters remains liable to its ceding companies for the portion reinsured.
Consequently, the most important factors in Underwriters' selection of
retrocessionaires are financial strength and stability.
 
                                        8
<PAGE>   11
 
     Underwriters carefully evaluates potential retrocessionaires, which must
meet the approval of several members of senior management before being engaged.
Once engaged, Underwriters monitors the financial condition of its
retrocessionaires and takes appropriate actions to eliminate or minimize bad
debt exposure. Generally, Underwriters requires that unpaid losses and loss
adjustment expenses for non-admitted reinsurers that are not regulated by
domestic insurance regulatory authorities be collateralized by letters of
credit, funds withheld or pledged trust agreements. Additionally, commutations
may be taken to reduce or eliminate credit exposure when necessary. Although
there can be no assurance that such will be the case in future years,
Underwriters' write-offs for unrecoverable reinsurance were negligible in 1998
and 1997. As of December 31, 1998, Underwriters had an allowance for estimated
unrecoverable reinsurance of $3.4 million.
 
     Underwriters currently has reinsurance contracts in force which cede to
retrocessionaires risks in excess of Underwriters' net risk retention.
Underwriters cedes up to $1.5 million per casualty facultative risk and up to
$1.1 million per property facultative risk. Underwriters also has an aggregate
reinsurance contract to cover losses up to $125.0 million incurred during the
period July 1, 1998 through June 30, 1999 in excess of a 98.2% net loss and loss
adjustment expense ratio. Such net loss ratio is calculated by dividing losses
by premiums net of commissions and brokerage. The contract covers essentially
all lines of business written by Underwriters; however, property catastrophe
losses are subject to a sublimit of $100.0 million. Upon its expiration,
management expects to renew this contract or to enter into a new contract
providing similar coverage. In addition, Underwriters from time to time
purchases retrocessional reinsurance in varying amounts for specific assumed
treaties.
 
     Underwriters has two reinsurance contracts with Continental Casualty
Company (the "Continental Contracts") that provide coverage for pre-1987
business up to an aggregate limit of $200.0 million. Underwriters received
payments under these contracts totaling $23.7 million in 1997 and $22.1 million
in 1998, reducing the reinsurance receivable attributable to such contracts from
$87.8 million at year-end 1997 to $65.7 million at year-end 1998. Such
receivable is secured by a trust fund dedicated solely to payments under the
Continental Contracts.
 
     As of December 31, 1998, Underwriters had reported reinsurance receivables
of $491.2 million through retrocessional agreements, including $65.7 million of
reinsurance receivables under the Continental Contracts, which was fully secured
as described above, and $218 million due from another reinsurer, 98.7 percent of
which was secured with a combination of letters of credit and funds withheld.
 
OUTSTANDING LOSSES AND LOSS ADJUSTMENT EXPENSES
 
     In many cases, significant periods of time may elapse between the
occurrence of an insured loss, the reporting of such loss to the insurer and the
reinsurer, the insurer's payment of such loss and the subsequent payment by the
reinsurer. To recognize liabilities for unpaid losses, insurers and reinsurers
establish "reserves." These reserves are balance sheet liabilities representing
estimates of future amounts needed to pay claims and related expenses with
respect to insured events which have occurred, including events which have not
been reported to the insurer.
 
     When a reinsurance claim is reported by the ceding company, Underwriters
establishes a "case" reserve for the estimated amount of Underwriters' ultimate
payment. Such reserves are based upon the amounts recommended by the ceding
company and are often supplemented by additional amounts as deemed necessary by
Underwriters after Underwriters has evaluated such claim on the basis of
numerous factors, including coverage, liability, severity of injury or damage,
jurisdiction and ability of the ceding company to evaluate and handle the claim
properly. In many cases Underwriters establishes case reserves even if the
ceding company believes that Underwriters will have no ultimate liability.
Underwriters always establishes a case reserve in an amount at least equal to
that recommended by the ceding company. Case reserves are periodically adjusted
by Underwriters based on its evaluation of subsequent reports from and audits of
the ceding companies.
 
     When a primary claim is reported, Underwriters Re Group personnel establish
a "case" reserve based on evaluation of the claim and estimation of the ultimate
payment amount. All primary claims are supervised by Underwriters Re Group
personnel who at times may engage outside counsel or adjusting firms, if
necessary.
 
                                        9
<PAGE>   12
 
     Additional reserves are established on an aggregate basis to provide for
losses incurred but not yet reported ("IBNR") to the reinsurer and to supplement
the overall adequacy of reported case reserves and estimated expenses of
settling such claims, including legal and other fees and general expenses of
administering the claims adjustment process. Underwriters Re Group establishes
IBNR reserves by using accepted loss reserving standards and principles to
estimate the ultimate liability for LAE. The process implicitly recognizes the
impact of inflation and other factors that affect claims reporting by taking
into account changes in historic loss reporting patterns and perceived probable
trends.
 
     Underwriters Re Group reviews its aggregate loss reserves at least twice
each year. Between the semi-annual reviews, Underwriters Re Group updates its
loss reserves by applying the loss ratios determined in the previous review to
earned premiums to date, less incurred losses reported. Underwriters Re Group
does not discount its reserves for anticipated investment income. There are
inherent uncertainties in estimating reserves due primarily to the significant
periods of time that may elapse between occurrence of an insured or reinsured
loss and reporting and ultimate settlement of such loss, the diversity of
development patterns among different lines of business and types of reinsurance,
and the necessary reliance on the ceding company for information regarding
reinsurance claims. Actual losses and loss expenses may deviate, perhaps
substantially, from reserves in Underwriters Re Group financial statements,
which could have a material adverse effect on Underwriters Re Group financial
condition and results of operations. Based on current information, management
believes reserves for losses and loss expenses at December 31, 1998 are
adequate.
 
  Asbestos and Environmental Impairment Claims Reserves
 
     Underwriters' reserve for losses and loss expenses includes amounts for
various liability coverages related to asbestos and environmental impairment
claims that arose from certain general liability and commercial multiple-peril
coverages. Restrictive asbestos and environmental impairment exclusions were
introduced in late 1986 on both primary and reinsurance contracts, significantly
reducing these exposures for accidents occurring after 1986. Reserves for
asbestos and environmental impairment claims cannot be estimated with
traditional loss reserving techniques because of uncertainties that are greater
than those associated with other types of claims. Factors contributing to those
uncertainties include a lack of historical data, the significant period of time
that has elapsed between the occurrence of the loss and the reporting of that
loss to the ceding company and the reinsurer, uncertainty as to the number and
identity of insureds with potential exposure to such risks, unresolved legal
issues regarding policy coverage, and the extent and timing of any such
contractual liability. Such uncertainties are not likely to be resolved in the
near future.
 
     As with all reinsurance claims, Underwriters establishes case reserves for
both asbestos and environmental impairment excess of loss reinsurance claims by
applying reinsurance contract terms to losses reported by ceding companies, and
analyzing from the first dollar of loss incurred by the primary insurer.
Additionally, ceding companies often report potential losses on a precautionary
basis (a "precautionary notice") to protect their rights under reinsurance
contracts, which generally call for prompt notice to the reinsurer. Ceding
companies, at the time they report such potential losses, advise Underwriters of
the ceding companies' current estimate of the amount of such loss. Underwriters
reviews each of these precautionary notices and, based upon current information,
assesses the likelihood of loss to Underwriters. Such assessment is one of the
factors used in determining the adequacy of IBNR reserves.
 
     For asbestos claims, Underwriters closely reviews precautionary notices
which concern any named insured previously linked to large asbestos exposure (a
"target defendant"). If the named insured is a "target defendant," Underwriters
assumes there is a probability of loss even if the named ceding company has not
itself reported reserves. IBNR reserves are recorded based on this review, as
well as an additional subjective evaluation of the aggregate reported losses
(approximately $2.9 million per year) for the last three years. The per year
figures are net of reinsurance, including the Continental Contracts.
 
     For environmental impairment claims, Underwriters establishes case reserves
and reviews precautionary notices as described above. Ultimate environmental
impairment claims exposure is especially uncertain because of the problematic
apportionment of clean-up costs under federal and state laws, the uncertain
enforceability of contract exclusions and the lack of specific "target
defendants." IBNR reserves are recorded
 
                                       10
<PAGE>   13
 
based on Underwriters' assessment of precautionary notices and a review of
aggregate reported losses (approximately $1.5 million per year) for the last
three years. The per year figures are net of reinsurance, including the
Continental Contracts.
 
     During the three years ended December 31, 1998, the average net loss
payment per claim (open and settled) for asbestos and environmental impairment
exposures (excluding cessions to the Continental Contracts) was $17,250 and
$33,300, respectively, and the highest paid loss was $0.7 million for an
asbestos claim and $1.0 million for an environmental impairment claim, in each
case net of ceded reinsurance (excluding cessions to the Continental Contracts).
All loss payments for asbestos and environmental impairment exposures for the
last three years have been recovered through cessions to the Continental
Contracts. Most claims paid to date have been paid under contracts with varying
levels of retention by the ceding company or insurer. Although the range of
losses paid by Underwriters has been wide, most losses paid have involved dollar
amounts at the lower end of such range.
 
     As of December 31, 1998, Underwriters' case and IBNR reserves (net of
reinsurance, including cessions to the Continental Contracts) totaled
approximately $23.0 million for asbestos liabilities, which includes reserves
for approximately 694 open claims where cedents have advised Underwriters that
they currently expect to recover from Underwriters. As of December 31, 1998,
Underwriters' case and IBNR reserves (net of reinsurance, including cessions to
the Continental Contracts) totaled about $24.0 million for environmental
impairment claims, which includes reserves for approximately 438 open claims
where cedents have advised Underwriters that they currently expect to recover
from Underwriters. Additionally, ceding companies have submitted 1,591
precautionary notices for asbestos claims and 4,530 precautionary notices for
environmental impairment claims to Underwriters; however, based on information
provided by the ceding companies and Underwriters' assessment of such claims,
Underwriters does not currently expect the losses with respect to such claims to
grow large enough to reach Underwriters' layer of reinsurance coverage.
 
     The reconciliation of the beginning and ending reserves for unpaid losses
and LAE related to asbestos and environmental impairment claims for the last
three years (net of cessions to the Continental Contracts, but excluding an
additional $13.9 million provision for such claims, discussed in the text
following the tables), is shown below (dollars in thousands):
 
      RECONCILIATION OF ASBESTOS-RELATED CLAIMS RESERVE FOR LOSSES AND LAE
 
<TABLE>
<CAPTION>
                                                         1998       1997       1996
                                                        -------    -------    -------
<S>                                                     <C>        <C>        <C>
Reserve, net of reinsurance recoverables, as of
  January 1...........................................  $21,172    $17,494    $14,494
Incurred loss, net of reinsurance.....................    1,872      3,678      3,000
Paid loss, net of reinsurance.........................        0          0          0
                                                        -------    -------    -------
Reserve, net of reinsurance recoverables, as of
  December 31.........................................   23,044     21,172     17,494
Reinsurance recoverables, as of December 31...........   15,746     14,726     15,176
                                                        -------    -------    -------
Reserve, gross of reinsurance recoverables, as of
  December 31.........................................  $38,790    $35,898    $32,670
                                                        =======    =======    =======
Type of reserve, net of reinsurance recoverables:
  Case................................................  $ 3,544    $ 3,172    $ 4,494
  IBNR................................................   19,500     18,000     13,000
                                                        -------    -------    -------
Total.................................................  $23,044    $21,172    $17,494
                                                        =======    =======    =======
</TABLE>
 
                                       11
<PAGE>   14
 
  RECONCILIATION OF ENVIRONMENTAL IMPAIRMENT CLAIMS RESERVE FOR LOSSES AND LAE
 
<TABLE>
<CAPTION>
                                                         1998       1997       1996
                                                        -------    -------    -------
<S>                                                     <C>        <C>        <C>
Reserve, net of reinsurance recoverables, as of
  January 1...........................................  $23,922    $22,600    $19,600
Incurred loss, net of reinsurance.....................       28      1,322      3,000
Paid loss, net of reinsurance.........................        0          0          0
                                                        -------    -------    -------
Reserve, net of reinsurance recoverables, as of
  December 31.........................................   23,950     23,922     22,600
Reinsurance recoverables, as of December 31...........    4,222      4,640      4,939
                                                        -------    -------    -------
Reserve, gross of reinsurance recoverables, as of
  December 31.........................................  $28,172    $28,562    $27,539
                                                        =======    =======    =======
Type of reserve, net of reinsurance recoverables:
  Case................................................  $ 9,950    $10,922    $ 9,600
  IBNR................................................   14,000     13,000     13,000
                                                        -------    -------    -------
Total.................................................  $23,950    $23,922    $22,600
                                                        =======    =======    =======
</TABLE>
 
     Increases to asbestos and environmental impairment claims reserves, if any,
may be covered to varying degrees by Underwriters' existing reinsurance
contracts with its retrocessionaires.
 
     In addition to case and IBNR reserves for asbestos and environmental
impairment claims reported in the tables above, Underwriters carries an
additional reserve for such exposures in its financial statements prepared in
accordance with generally accepted accounting principles ("GAAP"). The amount of
such reserve was $13.9 million as of December 31, 1998, compared with $18.9
million as of December 31, 1997. While there can be no assurance that such total
reserves will be adequate, management believes that Underwriters' total asbestos
and environmental impairment reserves, taking into consideration the additional
GAAP reserves, are a reasonable provision for such claims.
 
  Changes in Historical Net Loss and LAE Reserves
 
     The following table shows changes in historical net loss and LAE reserves
for Underwriters Re Group for each year since 1988. Reported reserve development
is derived primarily from information included in statutory financial statements
of Underwriters, CUIC, UIC and NUIC. The first line of the upper portion of the
table shows the net reserves at December 31 of each of the indicated years,
representing the estimated amounts of net outstanding losses and LAE for claims
arising during that year and in all prior years that are unpaid, including
losses that have been incurred but not yet reported to Underwriters Re Group.
For the year ended December 31, 1998, the first line also includes the loss
reserves associated with the corporate capital provided by VUL and two
affiliated companies to the Venton-managed syndicates at Lloyd's. The upper
(paid) portion of the table shows the cumulative net amounts paid as of December
31 of successive years with respect to the net reserve liability for each year.
The lower portion of the table shows the re-estimated amount of the previously
recorded net reserves for each year based on experience as of the end of each
succeeding year. The estimate changes as more information becomes known about
claims for individual years. In evaluating the information in the table, it
should be noted that a reserve amount reported in any period includes the effect
of any subsequent change in such reserve amount. For example, if a loss was
first reserved in 1988 at $100,000 and was determined in 1991 to be $150,000,
the $50,000 deficiency would be included in the Cumulative Redundancy
(Deficiency) row shown below for each of the years 1988 through 1990.
 
     Conditions and trends that have affected the development of the net reserve
liability in the past may not necessarily occur in the future. Accordingly, it
is not appropriate to extrapolate future redundancies or deficiencies based on
this table. During the mid-1980s, the reinsurance industry, including
Underwriters Re Group, experienced substantial underwriting losses. Such losses
are reflected in the table, beginning with the comparatively high cumulative
deficiencies in the year 1988. The cumulative reserve deficiencies in the years
1988 through 1992 primarily resulted from prior increases to asbestos and
environmental impairment claims reserves and includes the $35.8 million reserve
strengthening in 1993.
 
                                       12
<PAGE>   15
 
             CHANGES IN HISTORICAL NET RESERVES FOR LOSSES AND LAE
                                 (IN MILLIONS)
 
<TABLE>
<CAPTION>
                                                                          YEAR ENDED DECEMBER 31,
                                            -----------------------------------------------------------------------------------
                                            1988    1989   1990   1991   1992   1993   1994    1995     1996     1997     1998
                                            -----   ----   ----   ----   ----   ----   ----   ------   ------   ------   ------
<S>                                         <C>     <C>    <C>    <C>    <C>    <C>    <C>    <C>      <C>      <C>      <C>
Net liability as of the end of year.......  $ 461   $453   $411   $411   $437   $509   $536   $  628   $  732   $  784   $1,000
Cumulative amount of net liability paid as
  of:
  One year later..........................  $ 119   $137   $101   $ 84   $ 98   $112   $102   $  117   $  175   $  134       --
  Two years later.........................    242    227    173    161    178    189    167      214      247       --       --
  Three years later.......................    306    285    239    214    236    236    220      256       --       --       --
  Four years later........................    348    342    274    254    266    265    252       --       --       --       --
  Five years later........................    394    370    294    276    287    285     --       --       --       --       --
  Six years later.........................    414    384    311    287    301     --     --       --       --       --       --
  Seven years later.......................    425    396    319    296     --     --     --       --       --       --       --
  Eight years later.......................    434    403    326     --     --     --     --       --       --       --       --
  Nine years later........................    440    407     --     --     --     --     --       --       --       --       --
  Ten years later.........................    440     --     --     --     --     --     --       --       --       --       --
Net liability re-estimated as of:
  One year later..........................    454    457    414    412    483    516    539      629      727      782       --
  Two years later.........................    457    460    421    455    487    518    538      622      724       --       --
  Three years later.......................    462    474    465    460    491    523    531      620       --       --       --
  Four years later........................    492    520    472    469    496    519    530       --       --       --       --
  Five years later........................    538    528    485    469    493    519     --       --       --       --       --
  Six years later.........................    548    545    483    468    498     --     --       --       --       --       --
  Seven years later.......................    568    544    479    472     --     --     --       --       --       --       --
  Eight years later.......................    567    541    485     --     --     --     --       --       --       --       --
  Nine years later........................    567    550     --     --     --     --     --       --       --       --       --
  Ten years later.........................    573     --     --     --     --     --     --       --       --       --       --
  Cumulative Redundancy (Deficiency)......  $(112)  $(97)  $(74)  $(61)  $(61)  $(10)  $  6   $    8   $    8   $    2       --
Gross Liability -- End of Year............                                      $861   $940   $1,014   $1,110   $1,159   $1,555
Reinsurance Recoverable...................                                       352    404      386      378      375      555
                                                                                ----   ----   ------   ------   ------
Net Liability -- End of Year..............                                      $509   $536   $  628   $  732   $  784   $1,000
                                                                                ====   ====   ======   ======   ======
Gross Re-estimated Liability -- Latest....                                      $921   $934   $1,056   $1,165   $1,280
Re-estimated Recoverable -- Latest........                                       402    404      436      441      498
                                                                                ----   ----   ------   ------
Net Re-estimated Liability -- Latest......                                      $519   $530   $  620   $  724   $  782
                                                                                ====   ====   ======   ======
</TABLE>
 
                                       13
<PAGE>   16
 
     The reconciliation between the reserves reported in the annual statements
filed with state insurance departments in accordance with statutory accounting
practices ("SAP") and those reported in Underwriters Re Group's (including
Venton) consolidated financial statements prepared in accordance with GAAP for
the last three years is shown below (in thousands):
 
   RECONCILIATION OF RESERVES FOR LOSSES AND LAE FROM SAP BASIS TO GAAP BASIS
 
<TABLE>
<CAPTION>
                                                              DECEMBER 31
                                                 --------------------------------------
                                                    1998          1997          1996
                                                 ----------    ----------    ----------
<S>                                              <C>           <C>           <C>
Statutory Reserves.............................  $  866,647    $  765,419    $  705,106
Venton Reserves................................     119,905             0             0
Additional Mass Action Reserves(1).............      13,850        18,850        27,350
Reinsurance Recoverables.......................     554,416       374,801       377,564
                                                 ----------    ----------    ----------
GAAP Reserves..................................  $1,554,818    $1,159,070    $1,110,020
                                                 ==========    ==========    ==========
</TABLE>
 
- ---------------
(1) Amount represents additional reserves recorded by Underwriters in 1993 for
    probable asbestos-related and environmental impairment claims exposure.
 
     The reconciliation of reserves for Underwriters Re Group (including Venton)
for the last three years on a GAAP basis is shown below (in thousands):
 
                 RECONCILIATION OF RESERVES FOR LOSSES AND LAE
 
<TABLE>
<CAPTION>
                                                    1998          1997          1996
                                                 ----------    ----------    ----------
<S>                                              <C>           <C>           <C>
Reserve, net of reinsurance recoverables, as of
  January 1....................................  $  784,269    $  732,456    $  628,420
Incurred loss, net of reinsurance, related to:
  Current year.................................     290,513       267,530       242,332
  Prior years..................................      (2,254)       (5,702)        1,393
                                                 ----------    ----------    ----------
Total incurred loss, net of reinsurance........     288,259       261,828       243,725
                                                 ----------    ----------    ----------
Paid loss, net of reinsurance, related to:
  Current year.................................     (57,788)      (35,033)      (23,341)
  Prior years..................................    (134,243)     (174,982)     (116,348)
                                                 ----------    ----------    ----------
Total paid loss, net of reinsurance............    (192,031)     (210,015)     (139,689)
                                                 ----------    ----------    ----------
Venton reserves, net of reinsurance
  recoverables, as of September 30.............     119,905             0             0
Reserve, net of reinsurance recoverables, as of
  December 31..................................   1,000,402       784,269       732,456
Reinsurance recoverables, as of December 31....     554,416       374,801       377,564
                                                 ----------    ----------    ----------
Reserve, gross of reinsurance recoverables, as
  of December 31...............................  $1,554,818    $1,159,070    $1,110,020
                                                 ==========    ==========    ==========
</TABLE>
 
INVESTMENT OPERATIONS
 
     Investments of Underwriters Re Group must comply with the insurance laws of
New Hampshire, California and Nebraska, the domiciliary states of Underwriters
and NUIC, CUIC, and UIC, respectively, and the other states in which they are
licensed. These laws prescribe the kind, quality and concentration of
investments which may be made by insurance companies. In general, these laws
permit investments, within specified limits and subject to certain
qualifications, in federal, state and municipal obligations, corporate bonds,
preferred and common stocks and real estate mortgages.
 
                                       14
<PAGE>   17
 
     Underwriters Re Group's investment strategy is to match the average
duration of its high-quality diversified fixed maturity portfolio to the average
adjusted duration of its liabilities and to provide sufficient cash flow to meet
its obligations while maximizing its after-tax rate of return. The average
adjusted duration of liabilities is estimated by adjusting the average duration
of liabilities to reflect anticipated cash flows from writings of future
business. Underwriters Re Group's average adjusted duration of liabilities is
currently estimated to be four years and is re-estimated from time to time.
Securities may be sold from time to time to take advantage of investment
opportunities created by changing interest rates, prepayments, tax and credit
considerations or other factors. Underwriters Re Group's entire fixed maturity
portfolio has been designed to enable management to react to such opportunities
or to circumstances that could result in a mismatch between the duration of such
portfolio assets and the duration of liabilities and, as such, is classified as
available for sale.
 
     The following table reflects investment results for the fixed maturity
portfolio of Underwriters Re Group for the years ended December 31, 1998, 1997
and 1996 (dollars in thousands):
 
                               INVESTMENT RESULTS
 
<TABLE>
<CAPTION>
                                                  NET           NET        PRE-TAX
                                                PRE-TAX      AFTER-TAX     REALIZED
                                AVERAGE        INVESTMENT    INVESTMENT     GAINS      EFFECTIVE    AFTER-TAX
PERIOD                      INVESTMENTS(1)     INCOME(2)     INCOME(3)     (LOSSES)    YIELD(4)     YIELD(5)
- ------                      ---------------    ----------    ----------    --------    ---------    ---------
<S>                         <C>                <C>           <C>           <C>         <C>          <C>
Year Ended December 31,
  1998....................    $1,244,611        $74,895       $54,614       $ 844         6.0%         4.4%
Year Ended December 31,
  1997....................    $1,147,064        $69,229       $50,239       $(855)        6.0%         4.4%
Year Ended December 31,
  1996....................    $  984,345        $59,542       $42,971       $ (94)        6.0%         4.4%
</TABLE>
 
- ---------------
(1) Average of amortized cost of fixed maturities at beginning and end of
    period, excluding operating cash.
 
(2) After investment expenses, excluding realized gains or losses from sale of
    investments.
 
(3) Net pre-tax investment income less appropriate income taxes.
 
(4) Net pre-tax investment income for the period divided by average investments
    for the same period.
 
(5) Net after-tax investment income for the period divided by average
    investments for the same period.
 
     As of December 31, 1998, the equity portfolio of Underwriters Re Group was
carried at a market value of approximately $290.0 million with an original cost
of approximately $135.5 million, and consisted primarily of approximately 7.4
million shares of BNSF common stock. The cost of equities listed in the table
below, $109.7 million, includes the cost paid by Alleghany for the BNSF common
stock prior to being contributed to Underwriters Re Group. In 1998, Underwriters
Re Group realized a gain of $6.6 million related to the sale of equity
securities and had dividend income of $6.6 million therefrom.
 
                                       15
<PAGE>   18
 
     The following table summarizes the investments of Underwriters Re Group,
excluding cash, as of December 31, 1998, with all investments carried at fair
value (dollars in thousands):
 
<TABLE>
<CAPTION>
                                                                   INVESTMENTS
                                               ----------------------------------------------------
                                                AMORTIZED COST OR COST            FAIR VALUE
                                               ------------------------    ------------------------
                                                 AMOUNT      PERCENTAGE      AMOUNT      PERCENTAGE
                                               ----------    ----------    ----------    ----------
<S>                                            <C>           <C>           <C>           <C>
Short-term investments.......................  $  108,388         8%       $  108,388         7%
Corporate bonds..............................     278,283        21           285,539        19
United States government and government
  agency bonds...............................     126,641        10           129,330         8
Mortgage- and asset-backed securities........     275,308        21           284,155        19
Foreign bonds................................      26,146         2            25,809         2
Redeemable and auction preferred stocks......      21,618         2            22,243         1
Municipal bonds..............................     371,371        28           383,253        25
Equity securities(1).........................     109,643         8           290,029        19
                                               ----------       ---        ----------       ---
          Total..............................  $1,317,398       100%       $1,528,746       100%
                                               ==========       ===        ==========       ===
</TABLE>
 
- ---------------
(1) Includes 7,424,469 shares of BNSF common stock at the original cost to
    Alleghany.
 
     The following table indicates the composition of the long-term fixed
maturity portfolio by Moody's rating as of December 31, 1998 (dollars in
thousands):
 
              LONG-TERM FIXED MATURITY PORTFOLIO BY MOODY'S RATING
 
<TABLE>
<CAPTION>
                                                       FAIR VALUE    PERCENTAGE
                                                       ----------    ----------
<S>                                                    <C>           <C>
Aaa..................................................  $  567,843        50%
Aa...................................................     184,426        16
A....................................................     266,658        24
Baa..................................................      82,865         7
Ba...................................................      21,155         2
Non-rated............................................       7,382         1
                                                       ----------       ---
          Total......................................  $1,130,329       100%
                                                       ==========       ===
</TABLE>
 
     The following table indicates the composition of the long-term fixed
maturity portfolio by years until contractual maturity as of December 31, 1998
(dollars in thousands):
 
           LONG-TERM FIXED MATURITY PORTFOLIO BY YEARS UNTIL MATURITY
 
<TABLE>
<CAPTION>
                                                       FAIR VALUE    PERCENTAGE
                                                       ----------    ----------
<S>                                                    <C>           <C>
One year or less.....................................  $   58,645         5%
Over one through five years..........................     335,358        30
Over five through ten years..........................     327,901        29
Over ten years.......................................     124,270        11
Mortgage- and asset-backed securities................     284,155        25
                                                       ----------       ---
          Total......................................  $1,130,329       100%
                                                       ==========       ===
</TABLE>
 
COMPETITION
 
     Underwriters competes primarily in the United States reinsurance market
with numerous domestic and foreign reinsurers, many of which have greater
financial resources than Underwriters. Underwriters' competitors include
independent reinsurance companies, subsidiaries or affiliates of worldwide
insurance companies,
                                       16
<PAGE>   19
 
reinsurance departments of certain primary insurance companies and domestic,
European and Asian underwriting syndicates. Competition in the types of
reinsurance in which Underwriters is engaged is based on many factors, including
the perceived overall financial strength of the reinsurer, premiums charged,
contract terms and conditions, services offered, speed of claims payment,
reputation and experience.
 
     Competition in the property and casualty reinsurance industry has
historically been cyclical in nature. Typically, a cycle begins with attractive
premium rates for reinsurance, which cause increased writing by existing
reinsurers and the entrance into the market of new reinsurers. Competition
within the market continues to grow, resulting in a decrease in premium rates.
As the cycle continues, assuming loss experience is consistent, these declining
premium rates eventually result in a period of underwriting losses. Such losses
in turn cause reinsurers to slow or stop writing reinsurance or to withdraw from
the market altogether, which results in decreased competition and a subsequent
increase in premium rates. Management believes this competitive cycle, which may
affect particular market segments at different times, is a critical factor
affecting reinsurance profitability over time. There can be no assurance that
historical trends in the property and casualty reinsurance industry will
continue or that Underwriters will be able to accurately anticipate any such
trends.
 
     To enhance Underwriters' financial strength, Alleghany, through URG,
contributed approximately $51 million in cash and equity securities in 1993 and
$100 million in equity securities in 1994 to the capital of Underwriters.
Underwriters' enhanced financial strength has allowed it to benefit from the
continuing trend toward consolidation in the domestic reinsurance market,
resulting from the tendency of reinsurance buyers to purchase coverage from
larger and more financially secure reinsurers. In 1996, URG issued $200 million
principal amount of 7 7/8% Senior Notes due 2006. Of the net proceeds of the
offering, $120 million was contributed to the capital of Underwriters, $50
million was used to repay indebtedness under URG's credit agreement and the
remainder is being used for general corporate purposes. According to the
Reinsurance Association of America, at December 31, 1998 there were 38 domestic
professional reinsurers, and Underwriters was the nation's tenth-largest in
terms of statutory surplus and thirteenth-largest in terms of net written
premiums.
 
     The commercial property and casualty insurance industry is highly
competitive on the basis of price and service. CUIC's, UIC's and NUIC's
competitors include other primary insurers and new forms of insurance
organizations such as alternative self-insurance mechanisms. Many such
competitors have considerably greater financial resources, greater experience in
the insurance industry and offer a broader line of insurance products than CUIC,
UIC and NUIC.
 
REGULATION
 
     Underwriters, CUIC, UIC and NUIC are subject to regulation and supervision
by state insurance regulatory authorities under the insurance statutes and
regulations of states in which they are incorporated (New Hampshire for
Underwriters and NUIC, California for CUIC, and Nebraska for UIC). In addition,
each of these companies is regulated in each jurisdiction in which it conducts
business. Among other things, insurance statutes and regulations typically limit
the amount of dividends that can be paid without prior regulatory notification
and approval, impose restrictions on the amounts and types of investments that
may be held, prescribe solvency standards that must be met and maintained,
require filing of annual or other reports with respect to financial condition
and other matters and provide for periodic company examinations.
 
     The terms and conditions of reinsurance agreements generally are not
subject to regulation by any governmental authority with respect to rates or
policy terms. These agreements contrast with primary insurance policies and
agreements, the rates and policy terms of which are generally closely regulated
by state insurance departments. As a practical matter, however, the rates
charged by primary insurers have an effect on the rates that can be charged by
reinsurers.
 
     Each of the operating subsidiaries of The Center is subject to regulation
and supervision by state insurance regulators in the states in which its
subsidiary is licensed as an insurance agency. Such regulations address the
solicitation and effectuation of insurance in such states and impose certain
requirements relating to, among other things, countersignatures, continuing
education and maintenance of trust accounts.
                                       17
<PAGE>   20
 
     State insurance holding company statutes provide a regulatory mechanism
designed to protect the financial condition of domestic insurance companies
operating as subsidiaries of holding companies. All holding company statutes
require disclosure and, in some instances, prior approval of significant
transactions between a domestic insurance company and its affiliates. Holding
company statutes also may require, among other things, prior approval of any
acquisition of control of a domestic insurance company. As an insurance holding
company, Alleghany is subject to such regulations in New Hampshire, California
and Nebraska. The acquisition of Underwriters, CUIC and UIC by Alleghany was
subject to prior approval from the insurance regulatory authorities in the
states in which such companies are incorporated. Alleghany and its other
subsidiaries, however, generally are not otherwise subject to restrictions on
their business activities due to their affiliation with Underwriters, CUIC, UIC
and NUIC.
 
     Beginning with the 1994 year-end statutory financial statements, the
insurance laws of New Hampshire, California and Nebraska imposed risk-based
capital ("RBC") requirements on property and casualty insurers and reinsurers,
based on a model adopted by the National Association of Insurance Commissioners.
The RBC requirements attempt to assess a property and casualty company's
statutory capital and surplus needs, taking into account the risk
characteristics of the companies' investments and products, by measuring the
following risks: (i) underwriting, which encompasses the risk of adverse loss
developments and inadequate pricing, (ii) declines in asset values arising from
credit risks and (iii) declines in asset values arising from investment risks.
The ratio of a company's total adjusted capital to its risk-based capital
provides regulators with an early warning tool to identify weakly capitalized
companies for purposes of initiating corrective action. At December 31, 1998,
each of Underwriters, CUIC, UIC and NUIC had surplus well in excess of the
risk-based capital thresholds that would require any corrective action.
 
EMPLOYEES
 
     Underwriters Re Group employed 367 persons as of December 31, 1998.
 
                          FINANCIAL SERVICES BUSINESS
 
     Alleghany Asset Management, organized as a Delaware corporation in 1995,
conducts a financial services business through its subsidiaries, The Chicago
Trust Company ("Chicago Trust"), a Chicago-based investment firm with trust
powers, Montag & Caldwell, Inc. ("Montag & Caldwell"), an Atlanta-based
investment counseling firm acquired in July 1994, and Chicago Deferred Exchange
Corporation ("CDEC"), which facilitates certain tax-deferred property exchanges.
In 1996, Chicago Trust acquired Security Trust Company ("Security Trust"), a
California trust company, from a subsidiary of CT&T. Alleghany Asset Management
and its subsidiaries, formerly a part of the financial services group of CT&T,
were transferred to Alleghany in June 1998 and were not a part of the spin-off
of CT&T.
 
     During 1998, Alleghany Asset Management expanded its product line by adding
a small capitalization value equity product and acquiring a 40 percent interest
in Veredus Asset Management LLC ("Veredus"), a Louisville, Kentucky based small
capitalization growth equity manager with about $100 million in assets under
management. In addition, Alleghany Asset Management entered into a definitive
agreement to acquire Blairlogie Capital Management, an Edinburgh, Scotland based
investment manager that manages approximately $800 million in assets,
principally in non-U.S. equities. Blairlogie would provide Alleghany Asset
Management with its first international investment manager.
 
     Alleghany Asset Management provides distribution and marketing services to
its investment managers through the 401(k) services offered by Chicago Trust and
the Alleghany Funds, a mutual funds family offering ten no-load mutual funds.
Chicago Trust's full service 401(k) administration group provides trustee, plan
design, investment management and other administrative services. Such services
are marketed through internal sales forces in Chicago and Atlanta as well as
consultants and brokerage sources. The Alleghany Funds are marketed primarily
through registered investment advisers, broker-dealers and direct sales to
institutional clients, as well as through intermediary services, including
Schwab and Fidelity.
 
                                       18
<PAGE>   21
 
  Montag & Caldwell
 
     Founded in 1945, Montag & Caldwell, one of the Southeast's oldest
investment management firms, concentrates on managing large capitalization
growth equity and balanced portfolios for institutional, mutual fund and high
net worth clients. Montag & Caldwell believes that success in the institutional
investment business is dependent upon a disciplined and consistently applied
investment process translating into outstanding investment results. Montag &
Caldwell's equity results have consistently placed the firm among the top money
managers in its category.
 
     Montag & Caldwell targets separate accounts of $40 million and higher,
accessed through independent consultants or direct calls to prospective clients.
Its investment expertise is also available through the Alleghany Funds. Montag &
Caldwell advises two of the Alleghany Funds' mutual funds.
 
  Chicago Trust
 
     Chicago Trust and its predecessors have managed assets for investors since
1887. Chicago Trust is an investment firm with full trust powers engaged in the
following lines of business: institutional investment management, full service
401(k) administration, personal trust and investment services and administration
of the Alleghany Funds.
 
     Chicago Trust specializes in fixed income and large capitalization equity
money management for institutional clients. Chicago Trust's fixed income results
have consistently placed Chicago Trust among the top money managers in its
category. Chicago Trust markets its fixed income and equity products through
pension consultants and directly to plan sponsors. Chicago Trust also advises
seven of the Alleghany Funds' mutual funds.
 
     Chicago Trust's personal trust and investment services business serves the
investment and estate planning needs of individuals and families, mainly in the
metropolitan Chicago area. Chicago Trust believes that the business is
well-positioned to benefit from growth in family wealth and the demographics of
an aging baby boom generation.
 
     Chicago Trust's full service 401(k) business administers assets,
approximately half of which are invested in the Alleghany Funds and collective
funds managed by the subsidiaries of Alleghany Asset Management, and the
remainder of which is invested in third-party managed funds.
 
  Alleghany Funds
 
     Alleghany Funds had approximately $3.4 billion in assets under management
at December 31, 1998, compared with $1.9 billion at year-end 1997. Montag &
Caldwell Growth Fund and The Chicago Trust Growth & Income Fund experienced the
greatest increase in assets under management from year-end 1997 to 1998. The ten
no-load mutual funds consist of five equity funds, two balanced funds, two fixed
income funds and a money market fund. All of the funds are registered under the
Investment Company Act of 1940, as amended (the "1940 Act"), as investment
companies.
 
     Each of the mutual funds is managed by one of Chicago Trust, Montag &
Caldwell or Veredus pursuant to a management contract which is renewable
annually by vote of either of such fund's board of trustees (including a
majority of members who are not "interested persons" as defined under the 1940
Act) or such fund's shareholders. All management contracts terminate if assigned
and may be terminated by either party without penalty on 60 days' written
notice. The management contracts for the Alleghany Funds were all renewed for an
additional year in 1998. Under these contracts, Chicago Trust, Montag & Caldwell
and Veredus, respectively, is authorized in its discretion to buy and sell
securities for the accounts of the Alleghany Funds, subject to certain
limitations. To date, no management agreements of Alleghany Asset Management or
any of its subsidiaries with any of the Alleghany Funds have been involuntarily
terminated.
 
     As compensation for its management services, Chicago Trust, Montag &
Caldwell and Veredus, respectively, receives management fees from the Alleghany
Funds that range from 0% to 0.8% per year of average daily net assets depending
on the mutual fund. For 1998 and 1997, Alleghany Asset Management
 
                                       19
<PAGE>   22
 
received revenues from management fees from the Alleghany Funds of approximately
$17.3 million and $9.2 million, respectively. The assets of the Alleghany Funds
are managed by the same investment professionals who manage Alleghany Asset
Management's accounts of institutional and high net-worth individuals.
 
     Current information with respect to the Alleghany Funds can be found on its
website, www.alleghanyfunds.com.
 
  CDEC and Security Trust
 
     CDEC was established in 1989 and facilitates, with the assistance of
Chicago Trust, tax-deferred exchanges of like-kind property. In 1998, CDEC
facilitated more than 2,200 exchanges. CDEC acts as a qualified intermediary,
holding and investing the cash proceeds from the sale of property relinquished
by a taxpayer in a qualified trust account, of which Chicago Trust acts as
trustee, until replacement property is acquired. Security Trust provides trust,
investment and tax-deferred property exchange services in California.
 
MARKETING
 
     Growth in profitability of Alleghany Asset Management is largely dependent
on growth in assets under management, which results from market appreciation of
existing assets and new business (new clients and additional investments from
existing clients). Approximately 85 percent of Alleghany Asset Management's
assets under management are for institutional clients where competition is
intense and success is driven by investment performance. Both Montag & Caldwell
and Chicago Trust have strong investment records and have received high ratings
in various consultant and mutual fund informational service data bases.
 
     The largest portion of the revenues of Alleghany Asset Management consists
of advisory fees based primarily on the value of assets under management. Annual
rates vary and typically decline as account size increases. Fees earned from the
management of assets for institutional clients represented approximately 75% and
69% of the revenues of Alleghany Asset Management for 1998 and 1997,
respectively. As of December 31, 1998, Alleghany Asset Management, through its
subsidiaries, managed assets totaling about $35.6 billion.
 
     The separately managed accounts of Alleghany Asset Management are managed
pursuant to advisory agreements between the client and Alleghany Asset
Management. Such agreements are generally terminable on short notice. The
trustees or corporate officials who control such accounts are usually free to
change investment advisers without cumbersome legal procedures. None of the
clients of Alleghany Asset Management accounted for 10 percent or more of the
revenues of Alleghany Asset Management. Accordingly, the loss of any single
client would not have a material adverse effect on the business of Alleghany
Asset Management. The business of Alleghany Asset Management is not seasonal.
 
INVESTMENT OPERATIONS
 
     Investments held by Chicago Trust and Security Trust must comply with the
banking laws of the states of Illinois and California. These laws prescribe the
kind, quality and concentration of investments which may be made by trust
companies. In general, these laws permit investments, within specified limits
and subject to certain qualifications, in federal, state and municipal
obligations, corporate bonds and common stocks.
 
     Chicago Trust's and Security Trust's current investment strategy is to
maximize after-tax investment income through a high-quality diversified
investment portfolio, consisting primarily of taxable and tax-exempt fixed
maturity securities, while maintaining an adequate level of liquidity.
 
COMPETITION
 
     Alleghany Asset Management and its subsidiaries compete with national,
regional and local providers of financial services, many of which have
substantially greater capital and other resources and some of which offer a
wider range of financial services. Competition is chiefly on the basis of
service and investment performance.
 
                                       20
<PAGE>   23
 
REGULATION
 
     Acting as fiduciaries, Chicago Trust is regulated by the State of Illinois
Office of Banks and Real Estate, and Security Trust is regulated by the
California Department of Banking. Regulation covers such matters as the
fiduciary's management capabilities, the investment of funds held for its own
account, the soundness of its policies and procedures, the quality of the
services it renders to the public and the effect of its trust activities on its
financial soundness. Montag & Caldwell is a registered investment advisor and is
therefore subject to regulation by the Securities and Exchange Commission, the
state of Georgia, its domiciliary jurisdiction, and all other states in which it
is licensed to act in the capacity of investment advisor. As registered
investment companies, each of the funds of the Alleghany Funds is subject to
extensive regulation by the Securities and Exchange Commission, governing all
aspects of its operations. In addition, the Alleghany Funds are also subject to
certain limited regulation by the securities regulators in all 50 states.
 
EMPLOYEES
 
     At December 31, 1998, Alleghany Asset Management and its subsidiaries had
approximately 315 employees, including full-time and part-time employees.
 
                          INDUSTRIAL MINERALS BUSINESS
 
     On July 31, 1991, a holding company subsidiary of Alleghany acquired all of
Manville Corporation's worldwide industrial minerals business, now conducted
principally through World Minerals. The present chief executive officer of World
Minerals currently owns an equity interest, including outstanding options, of
about 6.6 percent of World Minerals' immediate parent company.
 
     World Minerals, headquartered in Santa Barbara, California, is principally
engaged in the mining, production and sale of two industrial minerals, diatomite
and perlite:
 
  Diatomite
 
     World Minerals conducts its diatomite business through Celite. Celite is
believed to be the world's largest producer of filter-aid grade diatomite, which
it markets worldwide under the Celite(R) and Kenite(R) brand names; Celite also
markets filter-aid grade diatomite in Europe under the Primisil(R) brand name
and in Latin America and other areas under the Diactiv(R) brand name.
 
     Diatomite is a silica-based mineral consisting of the fossilized remains of
microscopic freshwater or marine plants. Diatomite's primary applications are in
filtration and as a functional filler. Filtration accounts for the majority of
the worldwide diatomite market and for over 50 percent of Celite's diatomite
sales. Diatomite is used as a filter aid in the production of beer, food, juice,
wine, water, sweeteners, fats and oils, pharmaceuticals, chemicals, lubricants
and petroleum. Diatomite is used as a filler, mainly in paints, and as an
anti-block agent in plastic film.
 
     In addition to diatomite, Celite also produces calcium silicate products
and magnesium silicate products, which are sold worldwide under the
MicroCel(R)and Celkate(R) brand names (except in portions of Europe where
calcium silicate products are sold under the Calflo(R) brand name). These
products, which have high surface area and adsorption and absorption
capabilities, are used to convert liquid, semi-solid and sticky ingredients into
dry, free-flowing powders in the production of rubber, sweeteners, flavorings
and pesticides.
 
     Celite has its world headquarters in Lompoc, California and owns, directly
or through wholly owned subsidiaries, diatomite mines and/or processing plants
in Lompoc, California; Quincy, Washington; Murat, France; Alicante, Spain;
Arica, Chile; Arequipa, Peru; and Guadalajara, Mexico. Celite also owns 48.6
percent of Kisilidjan, h.f., a joint venture with the Government of Iceland
which mines and processes diatomite from Lake Myvatn in Iceland. In 1995, World
Minerals, through various subsidiaries of Celite, acquired controlling interests
in three joint ventures which are engaged in the mining and processing of
diatomite in Jilin Province, Peoples Republic of China ("PRC").
 
                                       21
<PAGE>   24
 
  Perlite
 
     On September 25, 1998, Harborlite and Europerlite Acquisition Corp. merged
and World Minerals now conducts its worldwide perlite business through
Harborlite.
 
     World Minerals believes that Harborlite is the world's largest producer of
perlite filter aids and that Harborlite, which is also engaged in the business
of selling perlite ore, is one of the world's largest merchant producers of
perlite ore. These products are marketed worldwide under the Harborlite(R) and
Europerl(R) brand names.
 
     Perlite is a volcanic rock which contains between 2 percent and 5 percent
natural combined water. When heated rapidly, the natural combined water turns
explosively to steam and the perlite ore "pops" in a manner similar to popcorn,
expanding up to twenty times its original volume and creating a soft material
with large surface area and correspondingly low density.
 
     Perlite ore is mined at Harborlite's No Agua, New Mexico mine and is sold
primarily to companies that expand it in their own expansion plants and use it
in the manufacture of roofing board, formed pipe insulation and acoustical
ceiling tile. Perlite ore for filter aid and certain filler applications is
mined at Harborlite's Superior, Arizona mine and is expanded at Harborlite's six
expansion plants located within the United States. Expanded perlite is also
produced at Harborlite's European expansion plants at Hessle, United Kingdom and
Wissembourg, France, Barcelona, Spain and Milan, Italy, from perlite ore
obtained from Harborlite's perlite mine at Dikili, Turkey and from merchant ore
producers in Europe. Most of the expanded perlite is used as a filter aid in the
brewing, food, wine, sweetener, pharmaceutical, chemical and lubricant
industries, or as a filler and insulating medium in various construction
applications.
 
     On October 31, 1995, World Minerals acquired control of all of the
outstanding capital stock of two privately owned perlite filter aid companies
with operations in Italy and Spain, respectively, and a privately owned perlite
sales company in Spain. These are now part of Harborlite.
 
     Harborlite has its world headquarters in Lompoc, California and owns,
directly or through wholly-owned subsidiaries, a perlite mine and mill in No
Agua, New Mexico, a perlite loading facility in Antonito, Colorado, a perlite
mine and a mill in Superior, Arizona, a perlite mine and mill in Dikili, Turkey,
a perlite deposit in Central Mexico, and perlite expansion facilities in
Escondido, California; Green River, Wyoming; Laporte, Texas; Youngsville, North
Carolina; Vicksburg, Michigan; Quincy, Florida; Wissembourg, France; Hessle,
England; Barcelona, Spain and Milan, Italy.
 
     World Minerals conducts its business on a worldwide basis, with mining and
processing operations in eleven countries. In 1998, approximately 43 percent of
World Minerals' revenues (equal to 9.4 percent of Alleghany's consolidated
revenues) were generated by foreign operations, and an additional 13 percent of
World Minerals' revenues were generated by export sales from the United States.
While World Minerals believes that the international scope of its operations
gives it unique competitive advantages, international operations can be subject
to additional risks, such as currency fluctuations, changes in foreign legal
requirements and political instability. World Minerals closely monitors its
methods of operating in each country and adopts strategies responsive to
changing economic and political environments.
 
     World Minerals minimizes its exposure to the risk of foreign currency
fluctuation by, among other things, causing its subsidiaries to declare and pay
dividends whenever feasible, and having its foreign subsidiaries invoice their
export customers in United States dollars or other "hard currencies." World
Minerals' foreign operations do not subject Alleghany to a material risk from
foreign currency fluctuation. During 1998, the currency turmoil in Asia did not
have a material adverse effect on World Minerals' results and it is not
currently expected that such turmoil will have a material adverse impact on
World Minerals' earnings in 1999.
 
     Celite's largest diatomite mine and plant is located near Lompoc,
California. All additional diatomite supplies are currently obtained by Celite
from its mines in the state of Washington, in France, Spain, Mexico, Chile,
Peru, and PRC, and from the Lake Myvatn mine in Iceland (although environmental
regulations and volcanic and seismic activity may adversely affect future
production at Lake Myvatn). Celite believes that diatomite reserves at each site
(including its Quincy, Washington mine upon completion of drilling programs
 
                                       22
<PAGE>   25
 
and process improvements in 1999) are generally sufficient to last for at least
20 more years at the current rate of utilization. Celite enhanced its reserves
at Lompoc, California in 1998 through the acquisition of rights to two diatomite
mines formerly controlled by a competitor, following such competitor's decision
to close its Lompoc-based diatomite business.
 
     Harborlite obtains perlite ore in the United States from its No Agua and
Superior mines, and believes that its perlite ore reserves at each site are
sufficient to last at least 20 more years at the current rate of utilization.
The perlite used by Harborlite for expansion in Europe is obtained from
Harborlite's Dikili mine and from third parties in Europe. Ore reserves at
Harborlite's Dikili mine are believed to be sufficient to last at least 20 more
years at the current rate of utilization.
 
     Celite's silicate products are produced from purchased magnesium and
calcium compounds and internally supplied diatomite.
 
     World Minerals' operating subsidiaries experienced no interruption in raw
material availability in 1998, except that severe El Nino-related storms in the
spring of 1998, which produced record rainfall totals in Santa Barbara County,
created some flooding conditions at Celite's Lompoc mine and resulted in higher
production costs and some delay in raw material availability. Barring unforeseen
circumstances, World Minerals anticipates no such interruptions in 1999. Celite
and Harborlite believe that they have taken reasonable precautions for the
continuous supply of their critical raw materials.
 
     Many of Celite's and Harborlite's operations use substantial amounts of
energy, including electricity, fuel oil, natural gas, and propane. Celite and
Harborlite have supply contracts for most of their energy requirements. Most of
such contracts are for one year or less. Celite and Harborlite have not
experienced any energy shortages and they believe that they have taken
reasonable precautions to ensure that their energy needs will be met, barring
any unusual or unpredictable developments.
 
     From the time World Minerals began operations in 1991, none of its
customers accounted for 10 percent or more of World Minerals' annual sales.
 
     World Minerals presently owns, controls or holds licenses either directly
or through its subsidiaries to approximately 20 United States and 48 foreign
patents and patent applications. While World Minerals considers all of its
patents and licenses to be valuable, World Minerals believes that none of its
patents or licenses is by itself material to its business.
 
     World Minerals normally maintains approximately a one- to four-week supply
of inventory on certain products due to production lead times. Although
diatomite mining activities at Celite's principal mine in Lompoc, California may
be suspended during periods of heavy rainfall, World Minerals believes that,
because of the stockpiling of ore during dry periods, such suspensions do not
materially affect the supply of inventory. The unusually severe El Nino-related
storms, however, did create brief interruptions during the early part of 1998.
Barring unusual circumstances, World Minerals does not experience backlogs of
orders. World Minerals' business is not seasonal to any material degree.
 
     World Minerals' domestic and international operations have been
consolidated into a single, centrally managed worldwide business under the
direction of a highly capable management team. Since 1993, financial systems and
controls have been upgraded, and the Celite and Harborlite sales, operations and
financial groups have been consolidated to improve efficiency and take advantage
of synergies. World Minerals acts as the sales agent for both Celite and
Harborlite in the United States and procures orders from customers and
distributors on their behalf. World Minerals also distributes Celite's and
Harborlite's products in Europe to dealers, distributors and end users on
Celite's and Harborlite's behalf.
 
     World Minerals has research and development, environmental control and
quality control laboratories at its Lompoc production facilities and quality
control laboratories at each of its other production facilities. In 1998, World
Minerals spent approximately $2.6 million on company-sponsored research and
technical services (in addition to amounts spent on engineering and exploration)
related to the development and improvement of its products and services.
 
                                       23
<PAGE>   26
 
COMPETITION
 
     World Minerals believes that Celite is the world's largest producer of
filter-aid grade diatomite. The remainder of the market is shared by Celite's
four major competitors: Eagle-Picher Minerals (United States), Grefco (United
States), CECA (France) and Showa (Japan), and a number of smaller competitors.
 
     World Minerals believes that Harborlite is the world's largest producer of
perlite filter aids and is one of the world's largest merchant producers of
perlite ore. Harborlite has two large competitors in the expanded perlite
market, Grefco and CECA, and many smaller competitors. Harborlite also has two
large competitors in the merchant perlite ore market, Grefco and Silver &
Baryte, and numerous smaller competitors.
 
     The filter aid products of Celite and Harborlite compete with other filter
aids, such as cellulose, and other filtration technologies, such as crossflow
and centrifugal separation. Celite's silicates compete with a wide variety of
other synthetic mineral products.
 
     In all of World Minerals' businesses, competition is principally on the
basis of service, product quality and performance, warranty terms, speed and
reliability of delivery, availability of the product and price.
 
REGULATION
 
     All of Celite's and Harborlite's domestic operations are subject to a
variety of federal, state and local environmental laws and regulations. These
laws and regulations establish potential liability for costs incurred in
cleaning up waste sites and impose limitations on atmospheric emissions,
discharges to domestic waters, and disposal of hazardous materials. Certain
state and local jurisdictions have adopted regulations that may be more
stringent than corresponding federal regulations. Celite and Harborlite believe
that the impact of environmental regulation on their respective operating
results has been minimal due to their environmental compliance programs;
however, Celite and Harborlite cannot predict the potential future impact of
such regulations, given the increasing number and complexity, and changing
character, of such regulations.
 
     Moreover, federal and state laws governing disposal of wastes impact
customers who must dispose of used filter-aid materials. World Minerals works
with its customers to implement disposal strategies to minimize the impact of
these disposal regulations.
 
     The domestic mining operations of Celite and Harborlite are subject to
regulation by the Mine Safety and Health Administration ("MSHA"). This agency
establishes health and safety standards relating to noise, respiratory
protection and dust for employee work environments in the mining industry.
Celite's and Harborlite's domestic production facilities which are not under the
jurisdiction of MSHA are subject to regulation by the Occupational Safety and
Health Administration ("OSHA"), which establishes regulations regarding, among
other things, workplace conditions, and exposure to dust and noise. In addition,
certain state agencies exercise concurrent jurisdiction in these areas. During
1997, both MSHA and OSHA announced special emphasis programs to reduce the
incidence of silicosis in the workplace. Due to Celite's industrial hygiene and
monitoring programs, Celite does not expect these special emphasis programs to
impact its business in any material way.
 
     World Minerals maintains a staff of experienced environmental, safety and
industrial hygiene professionals who assist plant personnel in complying with
environmental, health and safety regulations. Its environmental, safety and
industrial hygiene audit group also performs routine internal audits and reviews
of World Minerals' plant facilities worldwide. Due to these programs and
responsible management at the local plant level, compliance with such
regulations has been facilitated and the financial impact of such regulations on
operating results has been minimal.
 
     Certain products of Celite and Harborlite are subject to the Hazard
Communication Standard promulgated by OSHA, which requires Celite and Harborlite
to disclose the hazards of those products to employees and customers. Celite's
diatomite products and certain of Harborlite's products contain varying amounts
of crystalline silica, a mineral which is among the most common found on earth.
In 1997, the International Agency for Research on Cancer ("IARC") reclassified
the inhalation of crystalline silica from occupational sources from "probably
carcinogenic to humans" to a category reflecting "sufficient evidence of human
 
                                       24
<PAGE>   27
 
carcinogenicity." Celite and Harborlite provide required warning labels on their
products containing in excess of 0.1 percent respirable crystalline silica,
advising customers of the IARC designation and providing recommended safety
precautions. Such requirements also mandate that industrial customers who
purchase diatomite or perlite for use as a filler in their products label such
products to disclose hazards which may result from the inclusion of crystalline
silica-based fillers, if such products contain in excess of 0.1 percent of
crystalline silica by volume. Due to labeling concerns, some manufacturers of
paint may be considering the use of other fillers in place of Celite's products.
However, Celite believes that the loss of these customers would not have a
material adverse effect on its operating results. Several states have also
enacted or adopted "right to know" laws or regulations, which seek to expand the
federal Hazard Communication Standard to include providing notice of hazards to
the general public, as well as to employees and customers.
 
     Celite, through the industry-sponsored International Diatomite Producers
Association ("IDPA"), has participated in funding several studies to examine in
more detail the cancer risk to humans from occupational exposure to crystalline
silica. One such study, conducted by the University of Washington on diatomite
workers in Lompoc, California (the "Washington Study") found a modest increase
in lung cancer deaths in the cohort compared with national rates (indicated by a
standardized mortality ratio ("SMR") equal to 1.43). The standardized mortality
ratio compares the number of expected cancer deaths in the cohort with 1,
representing the number of cancer deaths in the population at large. The study
also found an increase in non-malignant respiratory disease ("NMRD") (SMR equal
to 2.59); this finding was expected because the NMRD category included silicosis
resulting from exposures in past decades.
 
     After the publication of the Washington Study, Celite conducted its own
review of the portion of the cohort representing the Lompoc plant and found that
more workers in this portion of the cohort may have been exposed to asbestos,
prior to World Minerals' purchase of the Lompoc plant, than originally thought.
Since exposure to asbestos has been found to cause lung cancer and respiratory
disease, this finding has raised concern that the Washington Study may have
overstated the adverse health effects of exposure to crystalline silica. IDPA
engaged an epidemiologist and an industrial hygienist to examine the cohort to
determine whether asbestos exposure was properly accounted for in the Washington
Study's results. The final IDPA report (the "Asbestos Study") was issued in
December 1994 and found:
 
          "Although asbestos operations were small relative to the diatomaceous
     earth operations, analyses in this report showed that exposure to asbestos
     by workers was relatively common. For example, the number of cohort members
     who were ever definitely, probably or possibly exposed to asbestos was
     shown to involve approximately 60 percent of the cohort. Even when only men
     employed in jobs definitely exposed to asbestos for more than [one] year in
     the period 1950-1977 were considered, more than 8 percent of the cohort had
     held such jobs."
 
The Asbestos Study's authors called for further analyses which fully take into
account the results of their study stating "[t]he interpretation of the
silica-lung cancer risk relationships based on the [Lompoc] cohort should await
the outcome of such analyses."
 
     The results of the Asbestos Study were analyzed by the authors of the
Washington Study. They did not agree that asbestos was a likely confounder of
the results of the initial study.
 
     In 1996, the Washington Study's authors, in association with researchers
from Tulane University, conducted a seven year follow-up study of the Lompoc
cohort. The follow-up study, funded by a grant from the National Institute for
Occupational Safety and Health, reported a lower SMR for the cohort (1.29 vs.
1.43), a weakened dose response relationship, which may suggest a less
conclusive indication of a causative relationship between occupational exposure
and cancer deaths, and a continued absence of excess lung cancers in workers
hired after 1960. Data errors later discovered in the follow-up study reduced
the final SMR to 1.22 and further weakened the dose response relationship. An
additional aspect of the study, which seeks to compare results of the cohort
study to radiographic readings of the workers, awaits publication.
 
     The various agreements covering the purchase of the business of Celite in
1991 provide for the indemnification of the holding company subsidiary of
Alleghany which acquired Celite by the various selling
 
                                       25
<PAGE>   28
 
Manville entities in respect of any environmental and health claims arising from
the operations of the business of Celite prior to its acquisition by the holding
company subsidiary.
 
EMPLOYEES
 
     During 1997, World Minerals reorganized and centralized much of the sales
functions of its foreign subsidiaries, placing many of them directly under World
Minerals ownership. As of December 31, 1998, World Minerals had 203 employees
worldwide, Celite had about 1,548 employees worldwide, and Harborlite had about
240 employees worldwide. Approximately 380 of Celite's employees and 38 of
Harborlite's employees in the United States are covered by collective bargaining
agreements. All of the collective bargaining agreements covering workers at
Celite and Harborlite are in full force and effect.
 
                            STEEL FASTENER BUSINESS
 
     The Heads and Threads division of Alleghany, headquartered in Northbrook,
Illinois, is believed to be one of the nation's leading importers and
distributors of steel fasteners. Heads and Threads imports and sells commercial
fasteners -- nuts, bolts, screws, washers and other fasteners -- for resale to
fastener manufacturers and distributors through a network of sales offices and
warehouses located in nineteen states. The strength of Heads and Threads lies in
its long years of association with suppliers and customers.
 
     In 1998, Heads and Threads acquired the assets of Gardenbolt International
Corp. of Sayreville, New Jersey, substantially increasing both the size of Heads
and Threads and its presence in East Coast markets. In addition, it completed
the installation and implementation of a new fully-integrated, enterprise-wide
computer system which should enhance the functionality of all areas of Heads and
Threads' business operations, including order processing, sales and inventory
management, transportation services and accounting and finance.
 
     Since Heads and Threads imports virtually all of its fasteners, it is
necessary to forecast inventory requirements from six months to a year in
advance to allow time for shipments to reach their destinations in the United
States. In addition, Heads and Threads' costs are subject to fluctuations in
foreign currency and import duties. Increases in import duties may result from
determinations by United States federal agencies that foreign countries are
violating United States laws or intellectual property rights, or are following
restrictive import policies. Heads and Threads' operations do not subject
Alleghany to a material risk from fluctuations in foreign currency or import
duties.
 
     Regulations implementing the Fastener Quality Act, the effective date of
which has been postponed to 1999, will increase costs.
 
     At December 31, 1998, Heads and Threads had about 227 employees.
 
                              REAL ESTATE BUSINESS
 
     Headquartered in Sacramento, California, Alleghany Properties and its
subsidiary own and manage, among other real estate and real estate-related
assets, 28 properties in California. Such properties are comprised primarily of
improved and unimproved commercial land (office, retail and industrial), and
improved and unimproved commercial and residential lots. A major portion of
API's real estate assets are located in North Natomas, the only large
undeveloped area in the City of Sacramento. Development in the area had been
delayed by flood plan zoning and wildlife habitat issues, both of which appear
to be close to resolution.
 
     At December 31, 1998, API had 5 employees.
 
ITEM 2.  PROPERTIES.
 
     Alleghany's headquarters is located in leased office space of about 11,000
square feet at 375 Park Avenue in New York City.
 
                                       26
<PAGE>   29
 
     Chicago Trust leases about 57,000 square feet at 171 North Clark Street in
Chicago, Illinois. In 1998, Montag & Caldwell entered into a lease covering
approximately 23,500 square feet of office space for its new headquarters in
Atlanta, Georgia. The lease term is expected to begin in the third quarter of
1999 upon completion of construction and relocation. Currently, Montag &
Caldwell leases about 18,400 square feet in Atlanta, Georgia and Security Trust
leases about 8,100 square feet in San Diego, California.
 
     URG is leasing approximately 45,000 square feet of office space for its new
headquarters in Calabasas, California. All of its four branch office locations
are also in leased space, ranging in size from about 2,900 square feet to 6,700
square feet. CUIC leases about 19,700 square feet of office space. All four
branch offices of The Center are also in leased space, ranging in size from
about 4,300 square feet to 5,800 square feet. VHL is leasing approximately
13,000 square feet of office space in London.
 
     World Minerals' headquarters is located in leased premises of approximately
13,000 square feet in Santa Barbara, California. Celite, Harborlite and certain
departments of World Minerals share 16,800 square feet of leased premises in
Lompoc, California.
 
     A description of the major plants and properties owned and operated by
Celite and Harborlite is set forth below. All of the following properties are
owned, with the exception of Plant #1 at Quincy, Washington, the headquarters
offices at Santa Barbara and Lompoc, California, the Nanterre, France, Santiago,
Chile and Izmir, Turkey offices and the plant at Wissembourg, France, which are
leased.
 
<TABLE>
<CAPTION>
LOCATION AND                             APPROXIMATE
NATURE OF PROPERTY                      SQUARE FOOTAGE                PRODUCT OR USE
- ------------------                      --------------                --------------
<S>                                     <C>               <C>
CELITE:
Lompoc, CA............................     997,410        Diatomite filter aids, fillers,
Production facility; 18 multi-story                       silicates and specialty products.
production buildings; 5 one-story
warehouse buildings; 6 one-story
laboratory buildings; 4 multi-story
bulk handling buildings; 6 one-story
office buildings; 2 one-story lunch
and locker-room buildings; and 10
one-story shops.
Lompoc, CA............................      16,800        Administrative office
1 one-story building; and 3 units
within 1 one-story building.
Quincy, WA............................      60,941        Diatomite filter aids and fillers
Production facility; Plant #1 -- 1
multi-story production building and 7
one-story buildings. Plant #2 -- 1
multi-story production building and 6
one-story buildings.
Murat, Department of Cantal, France...      77,000        Diatomite filter aids
Production facility; 1 one-story
manufacturing building; 2 one-story
warehouses; and 1 one-story office
building.
Nanterre, France......................       6,600        Sales and administrative offices
1 single floor.
Guadalajara, Mexico...................     116,610        Diatomite filter aids and fillers
Production facility; 2 multi-story
production buildings; 2 multi-story
pollution-control buildings; and 20
one-story buildings.
Mexico City, Mexico...................       2,700        Sales and administrative offices
1 single floor condominium.
</TABLE>
 
                                       27
<PAGE>   30
 
<TABLE>
<CAPTION>
LOCATION AND                             APPROXIMATE
NATURE OF PROPERTY                      SQUARE FOOTAGE                PRODUCT OR USE
- ------------------                      --------------                --------------
<S>                                     <C>               <C>
Arica, Chile..........................      50,000        Diatomite filter aids
Production facility; 1 calcined line;
1 administration building; 1
laboratory; 1 warehouse building; 1
changing room building; 1 maintenance
workshop; and 1 product warehouse.
Santiago, Chile.......................       1,682        Offices
1 single floor in a multi-story,
rented office building.
Alicante, Spain.......................      70,777        Diatomite filter aids and fillers
Production facility; 2 multi-story
manufacturing buildings; 3 one-story
warehouses; 2 one-story office
buildings; 1 two-story laboratory; and
3 miscellaneous buildings.
Changbai County, Jilin Province,            95,000        Diatomite filter aids
PRC...................................
Production facility; 1 multi-story
processing facility; 4 one-story
warehouse buildings; 1 multi-story
office building; and 4 one-story
miscellaneous buildings.
Linjiang County, Jilin Province,            74,665        Diatomite filter aids
PRC...................................
Production facility; 1 multi-story
production facility; 1 two-story
office building; 3 one-story warehouse
buildings; and 3 one-story
miscellaneous buildings.
Linjiang County, Jilin Province,           142,000        Diatomite filter aids
PRC...................................
Production facility; 3 multi-story
production facilities; 1 one-story
office building; 2 one-story warehouse
buildings; and 5 one-story
miscellaneous buildings.
HARBORLITE:
Antonito, CO..........................       9,780        Warehouse facilities for perlite ore
1 one-story manufacturing building and
warehouse; 1 one-story office
building; and 1 one-story warehouse.
No Agua, NM...........................      40,550        Perlite ore
Production facility; 1 six-story mill
building; 1 one-story office and shop
building; and 8 miscellaneous
one-story buildings.
Superior, AZ..........................       6,900        Perlite ore
Production facility; 1 one-story
warehouse building; and 1 one-story
office building.
Escondido, CA.........................       8,450        Perlite filter aids
1 one-story warehouse building; and 1
one-story office building.
Green River, WY.......................      17,300        Perlite filter aids
1 one-story warehouse building; and 1
one-story office building.
Vicksburg, MI.........................      25,050        Perlite filter aids
2 one-story warehouse buildings; and 1
one-story office building.
Youngsville, NC.......................      22,500        Perlite filter aids
1 one-story warehouse building; 1
one-story manufacturing building; and
1 one-story office building.
</TABLE>
 
                                       28
<PAGE>   31
 
<TABLE>
<CAPTION>
LOCATION AND                             APPROXIMATE
NATURE OF PROPERTY                      SQUARE FOOTAGE                PRODUCT OR USE
- ------------------                      --------------                --------------
<S>                                     <C>               <C>
Quincy, FL............................      18,450        Perlite filter aids
1 one-story warehouse building; 1
one-story manufacturing building; and
1 one-story office building.
LaPorte, TX...........................      23,000        Perlite filter aids and fillers
1 one-story expansion warehouse and
office building.
Wissembourg, France...................       5,000        Perlite filter aids and fillers
a portion of 1 multi-story production
and warehouse building.
Hessle, Humberside, United Kingdom....      36,700        Perlite filter aids and fillers
1 one-story manufacturing building;
and 1 two-story office building.
Dikili, Turkey........................      63,200        Perlite crushing mill
Production facility; 1 four-story
manufacturing building; 1 one-story
warehouse building; 1 one-story raw
material warehouse; 1 one-story office
building; and 1 one-story maintenance
shop.
Izmir, Turkey.........................       1,000        Sales and administrative offices
1 single floor.
Barcelona, Spain......................      70,300        Perlite filter aids and fillers
Production facility; 1 one-story
manufacturing and warehouse building;
1 one-story raw material warehouse;
and 1 two-story office building.
Milan, Italy..........................      68,600        Perlite filter aids
Production facility; 1 one-story
manufacturing/warehouse building; 1
one-story raw material warehouse; and
1 two-story office building.
WORLD MINERALS:
Santa Barbara, CA.....................      13,000        Headquarters office
1 one-story rented building.
</TABLE>
 
     Celite's largest mine is located on owned property immediately adjacent to
the City of Lompoc, California, and is the site of one of the most unusual
marine diatomite deposits in the world. The mine celebrated its 100th
anniversary of production in 1993 and has been in continuous operation for more
than 60 years. Reserves are believed to be sufficient for the operation of the
plant for at least 20 more years at the current rate of utilization. The Lompoc
production facility has a rated capacity in excess of 200,000 tons annually and
currently supplies more than 25 different grades of products to the filtration
and filler markets. The facility also houses World Minerals' research and
development, and health, safety and environmental departments and Celite's
quality control laboratories.
 
     World Minerals, Celite and Harborlite also lease warehouses, office space
and other facilities in the United States and abroad. A joint venture between
Celite and the Government of Iceland has rights to mine diatomaceous earth in
sections of Lake Myvatn, Iceland, and Celite's joint ventures in PRC have rights
to mine diatomaceous earth in sections of Jilin Province, PRC.
 
ITEM 3.  LEGAL PROCEEDINGS.
 
     Alleghany's subsidiaries and division are parties to pending litigation and
claims in connection with the ordinary course of their businesses. Each such
operating unit makes provision on its books, in accordance with generally
accepted accounting principles, for estimated losses to be incurred in such
litigation and claims,
 
                                       29
<PAGE>   32
 
including legal costs. In the opinion of management, such provision is adequate
under generally accepted accounting principles as of December 31, 1998.
 
ITEM 4.  SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS.
 
     No matter was submitted to a vote of security holders during the fourth
quarter of 1998.
 
SUPPLEMENTAL ITEM.  EXECUTIVE OFFICERS OF REGISTRANT.
 
     The name, age, current position, date elected and five-year business
history of each executive officer of Alleghany are as follows:
 
<TABLE>
<CAPTION>
                                  CURRENT POSITION                  BUSINESS EXPERIENCE
NAME               AGE             (DATE ELECTED)                   DURING LAST 5 YEARS
- ----               ---   ----------------------------------  ----------------------------------
<S>                <C>   <C>                                 <C>
F.M. Kirby         79    Chairman of the Board (since 1967)  Chairman of the Board, Alleghany.
John J. Burns,     67    President, chief operating officer  President, chief operating officer
  Jr.                    (since 1977) and chief executive    and chief executive officer,
                         officer (since 1992)                Alleghany.
David B. Cuming    66    Senior Vice President and chief     Senior Vice President and chief
                         financial officer (since 1989)      financial officer, Alleghany.
Robert M. Hart     54    Senior Vice President, General      Senior Vice President and General
                         Counsel (since 1994) and Secretary  Counsel since September 1994 and
                         (since 1995)                        Secretary since January 1995;
                                                             Partner, Donovan Leisure Newton &
                                                             Irvine, prior thereto.
Peter R. Sismondo  43    Vice President, Controller,         Vice President, Controller,
                         Assistant Secretary, principal      Treasurer, Assistant Secretary and
                         accounting officer (since 1989)     principal accounting officer,
                         and Treasurer (since 1995)          Alleghany, since January 1995;
                                                             Vice President, Controller,
                                                             Assistant Secretary and principal
                                                             accounting officer, Alleghany,
                                                             prior thereto.
</TABLE>
 
                                    PART II
 
ITEM 5.  MARKET FOR REGISTRANT'S COMMON EQUITY AND RELATED STOCKHOLDER MATTERS.
 
     The information required by this Item with respect to the market price of
and dividends on Alleghany's common stock and related stockholder matters is
incorporated by reference from page 22 of Alleghany's Annual Report to
Stockholders for the year 1998, filed as Exhibit 13 hereto.
 
RECENT SALES OF UNREGISTERED SECURITIES.
 
     On December 17, 1998, Alleghany sold to the Chairman of VHL 15,604 shares
of Alleghany common stock for an aggregate purchase price of $2,978,413.50, or
$190.875 per share. The sale was exempt from registration under the Securities
Act of 1933, as amended, pursuant to Section 4(2) thereof, as a transaction not
involving a public offering.
 
     Other than unregistered issuances of Alleghany common stock previously
reported in Alleghany's Quarterly Reports on Form 10-Q for the quarters ending
March 31, 1998, June 30, 1998 and September 30, 1998, such issuances that did
not involve a sale consisting of issuances of common stock and other securities
pursuant to employee incentive plans and the sale described above, Alleghany did
not sell any Alleghany common stock during 1998 that was not registered under
the Securities Act.
 
ITEM 6.  SELECTED FINANCIAL DATA.
 
     The information required by this Item 6 is incorporated by reference from
page 22 of Alleghany's Annual Report to Stockholders for the year 1998, filed as
Exhibit 13 hereto.
 
                                       30
<PAGE>   33
 
ITEM 7.  MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS.
 
     The information required by this Item 7 is incorporated by reference from
pages 3 through 5, 7, 9 through 11, 13 through 15, 17, 19, and 24 through 28, of
Alleghany's Annual Report to Stockholders for the year 1998, filed as Exhibit 13
hereto.
 
ITEM 7A.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.
 
     The information required by this Item 7A is incorporated by reference from
pages 28 through 29 of Alleghany's Annual Report to Stockholders for the year
1998, filed as Exhibit 13 hereto.
 
ITEM 8.  FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA.
 
     The information required by this Item 8 is incorporated by reference from
pages 30 through 46 of Alleghany's Annual Report to Stockholders for the year
1998, filed as Exhibit 13 hereto.
 
ITEM 9.  CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING AND
FINANCIAL DISCLOSURE.
 
     Not applicable.
 
                                    PART III
 
ITEM 10.  DIRECTORS AND EXECUTIVE OFFICERS OF REGISTRANT.
 
     As permitted by General Instruction G(3), information concerning the
executive officers of Alleghany is set forth as a supplemental item included in
Part I of this Form 10-K Report under the caption "Executive Officers of
Registrant." Information concerning the directors of Alleghany is incorporated
by reference from pages 5 through 9 of Alleghany's Proxy Statement, filed or to
be filed in connection with its Annual Meeting of Stockholders to be held on
April 23, 1999. Information concerning compliance with the reporting
requirements under Section 16 of the Securities Exchange Act of 1934, as
amended, is incorporated by reference from the bottom of pages 10 through 11 of
Alleghany's Proxy Statement, filed or to be filed in connection with its Annual
Meeting of Stockholders to be held on April 23, 1999.
 
ITEM 11.  EXECUTIVE COMPENSATION.
 
     The information required by this Item 11 is incorporated by reference from
pages 11 through 18 of Alleghany's Proxy Statement, filed or to be filed in
connection with its Annual Meeting of Stockholders to be held on April 23, 1999.
The information set forth beginning with the middle of page 18 through page 24
of Alleghany's Proxy Statement, filed or to be filed in connection with its
Annual Meeting of Stockholders to be held on April 23, 1999, is not "filed" as a
part hereof.
 
ITEM 12.  SECURITY OWNERSHIP OF CERTAIN BENEFICIAL OWNERS AND MANAGEMENT.
 
     The information required by this Item 12 is incorporated by reference from
pages 2 through 4, and from pages 9 through 10, of Alleghany's Proxy Statement,
filed or to be filed in connection with its Annual Meeting of Stockholders to be
held on April 23, 1999.
 
ITEM 13.  CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS.
 
     The information required by this Item 13 is incorporated by reference from
pages 12 through 13 of Alleghany's Proxy Statement, filed or to be filed in
connection with its Annual Meeting of Stockholders to be held on April 23, 1999.
 
                                       31
<PAGE>   34
 
                                    PART IV
 
ITEM 14.  EXHIBITS, FINANCIAL STATEMENT SCHEDULES AND REPORTS ON FORM 8-K.
 
     (a) 1.  Financial Statements.
 
     The consolidated financial statements of Alleghany and subsidiaries,
together with the report thereon of KPMG LLP, independent certified public
accountants, are incorporated by reference from the Annual Report to
Stockholders for the year 1998 into Item 8 of this Report.
 
         2.  Financial Statement Schedules.
 
     The schedules relating to the consolidated financial statements of
Alleghany and subsidiaries, together with the report thereon of KPMG LLP,
independent certified public accountants, are detailed in a separate index
herein.
 
         3.  Exhibits.
 
     The following are filed as exhibits to this Report:
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
  3.01     Restated Certificate of Incorporation of Alleghany, as
           amended by Amendment accepted and received for filing by the
           Secretary of State of the State of Delaware on June 23,
           1988, filed as Exhibit 20 to Alleghany's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1988, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
  3.02     By-Laws of Alleghany as amended April 18, 1995, filed as
           Exhibit 3.1 to Alleghany's Quarterly Report on Form 10-Q for
           the quarter ended March 31, 1995, is incorporated herein by
           reference.
*10.01     Description of Alleghany Management Incentive Plan, filed as
           Exhibit 10.01 to Alleghany's Annual Report on Form 10-K for
           the year ended December 31, 1993, is incorporated herein by
           reference.
*10.02     Alleghany Corporation Deferred Compensation Plan as amended
           and restated as of December 15, 1992, filed as Exhibit 10.03
           to Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1992, is incorporated herein by reference.
*10.03     Alleghany 1993 Long-Term Incentive Plan, as amended and
           restated effective as of January 1, 1994, filed as Exhibit
           10.06(b) to Alleghany's Annual Report on Form 10-K for the
           year ended December 31, 1994, is incorporated herein by
           reference.
*10.04     Alleghany Supplemental Death Benefit Plan dated as of May
           15, 1985 and effective as of January 1, 1985, filed as
           Exhibit 10.08 to Old Alleghany's Annual Report on Form 10-K
           for the year ended December 31, 1985, is incorporated herein
           by reference (Securities and Exchange Commission File No.
           1-9371).
*10.05(a)  Trust Agreement Amendment made as of July 8, 1994 between
           Alleghany and Chemical Bank, filed as Exhibit 10.08(a) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1995, is incorporated herein by reference.
*10.05(b)  Alleghany Retirement Plan, as amended and restated on March
           14, 1995, filed as Exhibit 10.08(c) to Alleghany's Annual
           Report on Form 10-K for the year ended December 31, 1994, is
           incorporated herein by reference.
*10.05(c)  Amendments to Alleghany Retirement Plan, effective as of
           January 1, 1996, filed as Exhibit 10.1 to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended March
           31, 1996, is incorporated herein by reference.
</TABLE>
 
                                       32
<PAGE>   35
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
*10.05(d)  Amendments to Alleghany Retirement Plan, effective as of
           January 1, 1998, filed as Exhibit 10.05(d) to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1997, is incorporated herein by reference.
*10.06     Alleghany Retirement COLA Plan dated and effective as of
           January 1, 1992, as adopted on March 17, 1992, filed as
           Exhibit 10.7 to Alleghany's Annual Report on Form 10-K for
           the year ended December 31, 1991, is incorporated herein by
           reference (Securities and Exchange Commission File No.
           1-9371).
*10.07     Description of Alleghany Group Long Term Disability Plan
           effective as of July 1, 1995, filed as Exhibit 10.10 to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1995, is incorporated herein by reference.
*10.08     Alleghany Amended and Restated Directors' Stock Option Plan
           effective as of April 20, 1993, filed as Exhibit 10.1 to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1993, is incorporated herein by reference.
*10.09     Alleghany Directors' Equity Compensation Plan, effective as
           of January 16, 1995, filed as Exhibit 10.11 to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1994, is incorporated herein by reference.
*10.10     Alleghany Non-Employee Directors' Retirement Plan effective
           July 1, 1990, filed as Exhibit 10.1 to Alleghany's Quarterly
           Report on Form 10-Q for the quarter ended June 30, 1990, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
*10.11(a)  Description of compensatory arrangement between Alleghany
           and Paul F. Woodberry, filed as Exhibit 10.11(a) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1997, is incorporated herein by reference.
*10.11(b)  Description of long-term incentive arrangement between
           Alleghany and Paul F. Woodberry, filed as Exhibit 10.21(b)
           to Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1995, is incorporated herein by reference.
 10.12     Revolving Credit Loan Agreement dated as of June 14, 1995
           among Alleghany and Chemical Bank, filed as Exhibit 10.1 to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1995, is incorporated herein by reference.
 10.12(a)  First Amendment dated as of April 8, 1998, to the Revolving
           Credit Loan Agreement dated as of June 14, 1995, among
           Alleghany and Chase Manhattan Bank (formerly known as
           Chemical Bank), filed as Exhibit 10.1 to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended March
           31, 1998, is incorporated herein by reference.
 10.13(a)  Distribution Agreement dated as of June 16, 1998 by and
           between Alleghany Corporation and Chicago Title Corporation
           (the "Spin-Off Distribution Agreement"), filed as Exhibit
           2.1(a) to Chicago Title Corporation's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1998, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 001-13995).
 10.13(b)  List of Contents of Exhibits to the Spin-Off Distribution
           Agreement, filed as Exhibit 2.1(b) to Chicago Title
           Corporation's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1998, is incorporated herein by reference
           (Securities and Exchange Commission File No. 001-13995).
 10.13(c)  Tax Sharing Agreement dated as of June 17, 1998 by and among
           Alleghany Corporation and Chicago Title Corporation, filed
           as Exhibit 10.2 to Chicago Title Corporation's Quarterly
           Report on Form 10-Q for the quarter ended June 30, 1998, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 001-13995).
</TABLE>
 
                                       33
<PAGE>   36
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.14     Distribution Agreement dated as of May 1, 1987 between
           Alleghany and MSL Industries, Inc., filed as Exhibit 10.21
           to Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1987, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.15     Amendment to Distribution Agreement dated June 29, 1987,
           effective as of May 1, 1987, between Alleghany and MSL
           Industries, Inc., filed as Exhibit 10.22 to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1987, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
 10.16(a)  Stock Purchase Agreement dated as of May 18, 1994 by and
           between First Interstate Bank of California and Alleghany
           (the "Sacramento Savings Stock Purchase Agreement"), filed
           as Exhibit 10.1(a) to Alleghany's Quarterly Report on Form
           10-Q for the quarter ended June 30, 1994, is incorporated
           herein by reference.
 10.16(b)  List of Contents of Exhibits and Schedules to the Sacramento
           Savings Stock Purchase Agreement, filed as Exhibit 10.1(b)
           to Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1994, is incorporated herein by reference.
 10.17(a)  Note Purchase Agreement dated as of January 15, 1995 by and
           among Alleghany Properties, Inc., Alleghany and Hartford
           Life Insurance Company Separate Account CRC (the "Alleghany
           Properties Note Purchase Agreement"), filed as Exhibit
           10.28(a) to Alleghany's Annual Report on Form 10-K for the
           year ended December 31, 1994, is incorporated herein by
           reference. Agreements dated as of January 15, 1995 among
           Alleghany Properties, Inc., Alleghany and each of
           Transamerica Life Insurance & Annuity Company, Transamerica
           Occidental Life Insurance Company, United of Omaha Life
           Insurance Company, Mutual of Omaha Insurance Company, The
           Lincoln National Life Insurance Company, Knights of Columbus
           and Woodmen Accident and Life Company are omitted pursuant
           to Instruction 2 of Item 601 of Regulation S-K.
 10.17(b)  List of Contents of Annexes and Exhibits to the Alleghany
           Properties Note Purchase Agreement, filed as Exhibit
           10.28(b) to Alleghany's Annual Report on Form 10-K for the
           year ended December 31, 1994, is incorporated herein by
           reference.
 10.17(c)  Amendment to Alleghany Properties Note Purchase Agreement
           dated as of June 23, 1995 among Alleghany, Alleghany
           Properties, Inc. and the Purchasers listed on Annex 1 to the
           Alleghany Properties Note Purchase Agreement, filed as
           Exhibit 10.1 to Alleghany's Quarterly Report on Form 10-Q
           for the quarter ended September 30, 1995, is incorporated
           herein by reference.
 10.17(d)  Amendment No. 2 to Alleghany Properties Note Purchase
           Agreement dated as of November 6, 1995 among Alleghany,
           Alleghany Properties, Inc. and the Purchasers listed on
           Annex 1 to the Alleghany Properties Note Purchase Agreement,
           filed as Exhibit 10.28(d) to Alleghany's Annual Report on
           Form 10-K for the year ended December 31, 1995, is
           incorporated herein by reference.
 10.17(e)  Third Amendment to Alleghany Properties Note Purchase
           Agreement dated as of December 11, 1998 by and among
           Alleghany, Alleghany Properties, Inc., Hartford Life
           Insurance Company, Transamerica Life Insurance & Annuity
           Company, Transamerica Occidental Life Insurance Company,
           United of Omaha Life Insurance Company, Mutual of Omaha
           Insurance Company, The Lincoln National Life Insurance
           company, Knights of Columbus and Woodmen Accident and Life
           Company.
</TABLE>
 
                                       34
<PAGE>   37
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.18(a)  Note Purchase Agreement dated as of December 11, 1998 by and
           among Alleghany Properties, Inc., Alleghany and United of
           Omaha Life Insurance Company (the "Alleghany Properties 1998
           Note Purchase Agreement"). Agreements dated as of December
           11, 1998 among Alleghany Properties, Inc., Alleghany and
           each of Companion Life Insurance Company, Hartford Life
           Insurance Company, The Lincoln National Life Insurance
           Company, and First Penn-Pacific Life Insurance Company are
           omitted pursuant to Instruction 2 of Item 601 of Regulation
           S-K.
 10.18(b)  List of Contents of Annexes and Exhibits to the Alleghany
           Properties 1998 Note Purchase Agreement. Alleghany agrees to
           furnish supplementally a copy of any omitted annex or
           exhibit to the Securities and Exchange Commission upon
           request.
 10.19(a)  Installment Sales Agreement dated December 8, 1986 by and
           among Alleghany, Merrill Lynch, Pierce, Fenner & Smith
           Incorporated and Merrill Lynch & Co., Inc., filed as Exhibit
           10.10 to Alleghany's Annual Report on Form 10-K for the year
           ended December 31, 1986, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.19(b)  Intercreditor and Collateral Agency Agreement dated as of
           October 20, 1997 among The Chase Manhattan Bank, Barclays
           Bank PLC and Alleghany Funding Corporation, filed as Exhibit
           10.1 to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended September 30, 1997, is incorporated herein by
           reference (Securities and Exchange Commission File No.
           1-9371).
 10.19(c)  Master Agreement dated as of October 20, 1997 between
           Barclays Bank PLC and Alleghany Funding Corporation, and
           related Amended Confirmation dated October 24, 1997 between
           Barclays Bank PLC and Alleghany Funding Corporation, filed
           as Exhibit 10.2 to Alleghany's Quarterly Report on Form 10-Q
           for the quarter ended September 30, 1997, are incorporated
           herein by reference (Securities and Exchange Commission File
           No. 1-9371).
 10.19(d)  Indenture dated as of October 20, 1997 between Alleghany
           Funding Corporation and The Chase Manhattan Bank, filed as
           Exhibit 10.3 to Alleghany's Quarterly Report on Form 10-Q
           for the quarter ended September 30, 1997, is incorporated
           herein by reference (Securities and Exchange Commission File
           No. 1-9371).
 10.20(a)  Stock Purchase Agreement dated as of July 1, 1991 among
           Celite Holdings Corporation, Celite Corporation and Manville
           International, B.V. (the "Celite Stock Purchase Agreement"),
           filed as Exhibit 10.2(a) to Alleghany's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1991, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
 10.20(b)  List of Contents of Exhibits and Schedules to the Celite
           Stock Purchase Agreement, filed as Exhibit 10.2(b) to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.21(a)  Joint Venture Stock Purchase Agreement dated as of July 1,
           1991 among Celite Holdings Corporation, Celite Corporation
           and Manville Corporation (the "Celite Joint Venture Stock
           Purchase Agreement"), filed as Exhibit 10.3(a) to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.21(b)  List of Contents of Exhibits and Schedules to the Celite
           Joint Venture Stock Purchase Agreement, filed as Exhibit
           10.3(b) to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1991, is incorporated herein by
           reference (Securities and Exchange Commission File No.
           1-9371).
</TABLE>
 
                                       35
<PAGE>   38
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.22(a)  Asset Purchase Agreement dated as of July 1, 1991 among
           Celite Holdings Corporation, Celite Corporation and Manville
           Sales Corporation (the "Celite Asset Purchase Agreement"),
           filed as Exhibit 10.4(a) to Alleghany's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1991, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
 10.22(b)  List of Contents of Exhibits and Schedules to the Celite
           Asset Purchase Agreement, filed as Exhibit 10.4(b) to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.22(c)  Amendment No. 1 dated as of July 31, 1991 to the Celite
           Asset Purchase Agreement, filed as Exhibit 10.32(c) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.23(a)  Acquisition Related Agreement dated as of July 1, 1991, by
           and between Celite Holdings Corporation, Celite Corporation
           and Manville Corporation (the "Celite Acquisition Related
           Agreement"), filed as Exhibit 10.5(a) to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended June 30,
           1991, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
 10.23(b)  List of Contents of Exhibits to the Celite Acquisition
           Related Agreement, filed as Exhibit 10.5(b) to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended June 30,
           1991, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
 10.23(c)  Amendment dated as of July 31, 1991 to Celite Acquisition
           Related Agreement, filed as Exhibit 10.33(c) to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1991, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
 10.24(a)  Amended and Restated Credit Agreement dated as of March 10,
           1995 (the "World Minerals Credit Agreement") among Mineral
           Holdings Inc., World Minerals, the banks named therein,
           NationsBank, N.A. (Carolinas), Bank of America National
           Trust and Savings Association and Chemical Bank, filed as
           Exhibit 10.36(a) to Alleghany's Annual Report on Form 10-K
           for the year ended December 31, 1995, is incorporated herein
           by reference.
 10.24(b)  List of Contents of Exhibits and Annexes to World Minerals
           Credit Agreement, filed as Exhibit 10.36(b) to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1995, is incorporated herein by reference.
 10.25(a)  Stock Purchase Agreement dated as of July 28, 1993 (the
           "Underwriters Stock Purchase Agreement") among Alleghany,
           The Continental Corporation, Goldman, Sachs & Co. and
           certain funds which Goldman, Sachs & Co. either control or
           of which they are general partner, Underwriters Re Holdings
           Corp. and Underwriters Re Corporation, filed as Exhibit
           10.3(a) to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1993, is incorporated herein by
           reference.
 10.25(b)  List of Contents of Exhibits and Schedules to the
           Underwriters Stock Purchase Agreement, filed as Exhibit
           10.3(b) to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1993, is incorporated herein by
           reference.
 10.26     Indenture dated as of June 25, 1996 between URC Holdings
           Corp. (now known as Underwriters Re Group, Inc.) and The
           First National Bank of Chicago, as trustee, relating to the
           7 7/8% Senior Notes due 2006, filed as Exhibit 10.30(j) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1996, is incorporated herein by reference.
</TABLE>
 
                                       36
<PAGE>   39
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.27(a)  Amended and Restated Credit Agreement dated as of December
           31, 1998 among Underwriters Re Group, Inc., the Lenders
           named therein and The First National Bank of Chicago, as
           Agent (the "Underwriters Credit Agreement").
 10.27(b)  List of Contents of Exhibits to the Underwriters Credit
           Agreement. Alleghany agrees to furnish supplementally a copy
           of any omitted exhibit to the Securities and Exchange
           Commission upon request.
 10.27(c)  Guaranty dated as of December 31, 1998 by Underwriters
           Reinsurance Company in favor of The First National Bank of
           Chicago, as Agent, pursuant to the Underwriters Credit
           Agreement.
 10.28(a)  Agreement and Plan of Amalgamation dated as of July 30, 1998
           by and among Underwriters Reinsurance Company, Underwriters
           Acquisition Company Ltd. and Venton Holdings Ltd. (the
           "Amalgamation Agreement").
 10.28(b)  List of Contents of Exhibits to the Amalgamation Agreement.
           Alleghany agrees to furnish supplementally a copy of any
           omitted exhibit to the Securities and Exchange Commission
           upon request.
 10.28(c)  Amendment No. 1 dated as of September 24, 1998 to the
           Amalgamation Agreement (the "Amalgamation Amendment No. 1").
 10.28(d)  List of Contents of Exhibits to the Amalgamation Amendment
           No. 1. Alleghany agrees to furnish supplementally a copy of
           any omitted exhibit to the Securities and Exchange
           Commission upon request.
 10.29(a)  Letter of Credit Facility and Reimbursement Agreement dated
           as of October 23, 1998 by and among Venton Underwriting
           Limited, Talbot Underwriting Limited, Underwriters Re Group,
           Inc., Underwriters Reinsurance Company, the Banks parties
           thereto, Mellon Bank, N.A., Dresdner Kleinwort Benson North
           America LLC and Dresdner Bank AG, New York and Grand Cayman
           Branches (the "Underwriters Letter of Credit Facility").
 10.29(b)  List of Contents of Exhibits to the Underwriters Letter of
           Credit Facility. Alleghany agrees to furnish supplementally
           a copy of any omitted exhibit to the Securities and Exchange
           Commission upon request.
 10.29(c)  First Amendment dated as of November 25, 1998 to the
           Underwriters Letter of Credit Facility.
 10.29(d)  Second Amendment dated as of December 8, 1998 to the
           Underwriters Letter of Credit Facility.
 10.30(a)  Agreement and Plan of Merger dated as of August 22, 1996
           among Chicago Title of Colorado, Inc. ("CT of Colorado"),
           Alleghany Acquisition Corporation, Alleghany and each of the
           shareholders of CT of Colorado (the "CT of Colorado Merger
           Agreement"), filed as Exhibit 2.1 to Alleghany's
           Registration Statement on Form S-3 (Registration No.
           333-13971), is incorporated herein by reference.
 10.30(b)  List of Contents of Exhibits to the CT of Colorado Merger
           Agreement, filed as Exhibit 2.2 to Alleghany's Registration
           Statement on Form S-3 (Registration No. 333-13971), is
           incorporated herein by reference.
 13        Pages 3 through 5, 7, 9 through 11, 13 through 15, 17, 19,
           22, and 24 through 46 of the Annual Report to Stockholders
           of Alleghany for the year 1998.
 21        List of subsidiaries of Alleghany.
</TABLE>
 
                                       37
<PAGE>   40
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 23        Consent of KPMG LLP, independent certified public
           accountants, to the incorporation by reference of their
           reports relating to the financial statements and related
           schedules of Alleghany and subsidiaries in Alleghany's
           Registration Statements on Form S-8 (Registration No.
           33-27598), Form S-8 (Registration No. 333-323), Form S-8
           (Registration No. 333-37237), Form S-8 (Registration No.
           333-57133), Form S-3 (Registration No. 33-55707), Form S-3
           (Registration No. 33-62477), Form S-3 (Registration No.
           333-09881), and Form S-3 (Registration No. 333-13971).
 27        Financial Data Schedule.
</TABLE>
 
- ---------------
* Compensatory plan or arrangement.
 
     (b) Reports on Form 8-K.
 
     Alleghany did not file any reports on Form 8-K during the fourth quarter of
1998.
 
                                       38
<PAGE>   41
 
                                   SIGNATURES
 
     Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be signed on
its behalf by the undersigned, thereunto duly authorized.
 
                                          ALLEGHANY CORPORATION
                                          (Registrant)
 
                                          By     /s/ JOHN J. BURNS, JR.
 
                                            ------------------------------------
                                            John J. Burns, Jr.
                                            President
 
Date: March 16, 1999
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
registrant and in the capacities and on the dates indicated.
 
<TABLE>
<S>                                                      <C>
Date: March 16, 1999                                                   By /s/ JOHN J. BURNS, JR.
                                                          --------------------------------------------------
                                                                          John J. Burns, Jr.
                                                                        President and Director
                                                                     (principal executive officer)
 
Date: March 16, 1999                                                   By /s/ DAN R. CARMICHAEL
                                                          --------------------------------------------------
                                                                           Dan R. Carmichael
                                                                               Director
 
Date: March 16, 1999                                                    By /s/ DAVID B. CUMING
                                                          --------------------------------------------------
                                                                            David B. Cuming
                                                                         Senior Vice President
                                                                     (principal financial officer)
 
Date: March 16, 1999                                                   By /s/ THOMAS S. JOHNSON
                                                          --------------------------------------------------
                                                                           Thomas S. Johnson
                                                                               Director
 
Date: March 16, 1999                                                  By /s/ ALLAN P. KIRBY, JR.
                                                          --------------------------------------------------
                                                                          Allan P. Kirby, Jr.
                                                                               Director
 
Date: March 16, 1999                                                       By /s/ F.M. KIRBY
                                                          --------------------------------------------------
                                                                              F.M. Kirby
                                                                  Chairman of the Board and Director
 
Date: March 16, 1999                                                    By /s/ WILLIAM K. LAVIN
                                                          --------------------------------------------------
                                                                           William K. Lavin
                                                                               Director
 
Date: March 16, 1999                                                      By /s/ ROGER NOALL
                                                          --------------------------------------------------
                                                                              Roger Noall
                                                                               Director
</TABLE>
 
                                       39
<PAGE>   42
<TABLE>
<S>                                                      <C>
Date: March 16, 1999                                                   By /s/ PETER R. SISMONDO
                                                         -----------------------------------------------------
                                                                           Peter R. Sismondo
                                                          Vice President, Controller, Treasurer and Assistant
                                                               Secretary (principal accounting officer)
 
Date: March 16, 1999                                                     By /s/ JAMES F. WILL
                                                         -----------------------------------------------------
                                                                             James F. Will
                                                                               Director
 
Date: March 16, 1999                                                   By /s/ PAUL F. WOODBERRY
                                                         -----------------------------------------------------
                                                                           Paul F. Woodberry
                                                                               Director
</TABLE>
 
                                       40
<PAGE>   43
 
                             ALLEGHANY CORPORATION
 
                                AND SUBSIDIARIES
 
                     INDEX TO FINANCIAL STATEMENT SCHEDULES
 
I   SUMMARY OF INVESTMENTS -- OTHER THAN INVESTMENTS
    IN RELATED PARTIES
 
II   CONDENSED FINANCIAL INFORMATION OF REGISTRANT
 
III  SUPPLEMENTARY INSURANCE INFORMATION
 
IV  REINSURANCE
 
VI  SUPPLEMENTAL INFORMATION CONCERNING PROPERTY-CASUALTY
    INSURANCE OPERATIONS
 
INDEPENDENT AUDITORS' REPORT ON FINANCIAL STATEMENT SCHEDULES
 
     All other schedules are omitted since they are not required, are not
applicable, or the required information is set forth in the financial statements
or notes thereto.
<PAGE>   44
 
                                                                      SCHEDULE I
 
                     ALLEGHANY CORPORATION AND SUBSIDIARIES
 
                      SUMMARY OF INVESTMENTS -- OTHER THAN
                         INVESTMENTS IN RELATED PARTIES
                                DECEMBER 31,1998
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                  AMOUNT AT WHICH
                                                                       FAIR        SHOWN IN THE
TYPE OF INVESTMENT                                       COST         VALUE        BALANCE SHEET
- ------------------                                    ----------    ----------    ---------------
<S>                                                   <C>           <C>           <C>
Fixed maturities:
  Bonds:
     United States Government and government
       agencies and authorities.....................  $  309,088    $  318,755      $  318,755
     States, municipalities and political
       subdivisions.................................     379,861       391,968         391,968
     Foreign governments............................      26,146        25,809          25,809
     Public utilities...............................      35,614        37,258          37,258
     All other corporate bonds......................     342,418       350,109         350,109
  Certificates of deposit...........................       1,333         1,333           1,333
  Redeemable preferred stock........................      21,618        22,243          22,243
                                                      ----------    ----------      ----------
     Fixed maturities...............................   1,116,078    $1,147,475      $1,147,475
                                                      ----------    ==========      ----------
Equity securities:
  Common stocks:
     Banks, trust, and insurance companies..........      16,000    $   16,000          16,000
     Industrial, miscellaneous, and all other.......     301,216       808,326         808,326
                                                      ----------    ----------      ----------
          Total equity securities...................     317,216    $  824,326         824,326
                                                      ----------    ==========      ----------
Other long-term investments.........................      19,407                        19,433
Short-term investments..............................     134,794                       134,799
                                                      ----------                    ----------
          Total investments.........................  $1,587,495                    $2,126,033
                                                      ==========                    ==========
</TABLE>
<PAGE>   45
 
                                                                     SCHEDULE II
 
                             ALLEGHANY CORPORATION
 
                            CONDENSED BALANCE SHEETS
                           DECEMBER 31, 1998 AND 1997
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                 1998          1997
                                                              ----------    ----------
<S>                                                           <C>           <C>
                                        ASSETS
Investment securities (Cost: 1998 $207,857; 1997
  $218,307).................................................  $  534,580    $  499,502
Cash........................................................         999             0
Accounts and other receivables, less allowances.............      27,992        20,560
Property and equipment -- at cost, less accumulated
  depreciation..............................................       4,866         3,049
Other assets................................................      47,347        32,118
Investment in CT&T (discontinued operations)................           0       385,451
Investment in consolidated subsidiaries.....................     898,450       865,131
                                                              ----------    ----------
                                                              $1,514,234    $1,805,811
                                                              ==========    ==========
                     LIABILITIES AND COMMON STOCKHOLDERS' EQUITY
Other liabilities...........................................  $   78,513    $   76,896
Net deferred tax liability..................................     140,686       122,857
Long-term debt..............................................      47,607        35,123
                                                              ----------    ----------
          Total liabilities.................................     266,806       234,876
Commitments and contingent liabilities
Common stockholders' equity.................................   1,247,428     1,570,935
                                                              ----------    ----------
                                                              $1,514,234    $1,805,811
                                                              ==========    ==========
</TABLE>
 
           See accompanying Notes to Condensed Financial Statements.
<PAGE>   46
 
                                                                     SCHEDULE II
 
                             ALLEGHANY CORPORATION
 
                        CONDENSED STATEMENTS OF EARNINGS
                      THREE YEARS ENDED DECEMBER 31, 1998
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                               1998        1997       1996
                                                              -------    --------    -------
<S>                                                           <C>        <C>         <C>
Revenues:
  Interest, dividend and other income.......................  $73,477    $ 61,362    $58,647
  Net (loss)
     gain on investment transactions........................      318     (11,280)       801
                                                              -------    --------    -------
          Total revenues....................................   73,795      50,082     59,448
                                                              -------    --------    -------
Costs and Expenses:
  Interest expense..........................................    6,597       4,466      3,444
  General and administrative................................   91,934      73,908     67,192
                                                              -------    --------    -------
          Total costs and expenses..........................   98,531      78,374     70,636
                                                              -------    --------    -------
  Operating loss............................................  (24,736)    (28,292)   (11,188)
Equity in earnings of consolidated subsidiaries.............  115,752      93,522     68,578
                                                              -------    --------    -------
  Earnings from continuing operations, before income
     taxes..................................................   91,016      65,230     57,390
Income taxes................................................   27,635      13,830     16,920
                                                              -------    --------    -------
  Earnings from continuing operations.......................   63,381      51,400     40,470
  Earnings from discontinued operations, net of tax.........   32,725      54,267     46,578
                                                              -------    --------    -------
  Net earnings..............................................  $96,106    $105,667    $87,048
                                                              =======    ========    =======
</TABLE>
 
           See accompanying Notes to Condensed Financial Statements.
<PAGE>   47
 
                                                                     SCHEDULE II
 
                             ALLEGHANY CORPORATION
 
                       CONDENSED STATEMENTS OF CASH FLOWS
                      THREE YEARS ENDED DECEMBER 31, 1998
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                1998        1997        1996
                                                              --------    ---------    -------
<S>                                                           <C>         <C>          <C>
CASH FLOWS FROM OPERATING ACTIVITIES
  Earnings from continuing operations.......................  $ 63,381    $  51,400    $40,470
  Adjustments to reconcile earnings from continuing
    operations to cash provided by (used in) continuing
    operations:
    Depreciation and amortization...........................       894          501        463
    Net (gain) loss on investment transactions..............      (318)      11,280       (801)
    (Increase) decrease in accounts and other receivables,
      less allowances.......................................    (7,432)      (2,402)       884
    (Increase) decrease in other assets.....................   (15,327)      (2,874)     3,554
    Increase (decrease) in other liabilities................     3,513       (7,375)   (12,268)
    Other operating, net....................................       471        1,226     (1,625)
    Equity in undistributed net earnings of consolidated
      subsidiaries..........................................   (79,071)     (64,007)   (46,731)
                                                              --------    ---------    -------
    Net adjustments.........................................   (97,270)     (63,651)   (56,524)
                                                              --------    ---------    -------
    Cash used in continuing operations......................   (33,889)     (12,251)   (16,054)
                                                              --------    ---------    -------
CASH FLOWS FROM INVESTING ACTIVITIES
  Purchase of investments...................................   (66,133)    (250,930)    (7,502)
  Sales of investments......................................    76,895      226,032      6,469
  Capital contributions to consolidated subsidiaries........      (263)      (1,171)      (446)
  Cash dividends from consolidated subsidiaries.............    61,826       14,362      4,441
  Purchase of property and equipment........................    (2,613)        (976)      (333)
  Disposition of property and equipment.....................         0            0         18
                                                              --------    ---------    -------
    Net cash provided by (used in) investing activities.....    69,712      (12,683)     2,647
                                                              --------    ---------    -------
CASH FLOWS FROM FINANCING ACTIVITIES
  Principal payments on long-term debt......................         0            0    (35,000)
  Proceeds of long-term debt................................    12,484       16,000     35,000
  Cash provided by discontinued operations..................     3,903       18,805     30,000
  Other, net................................................   (51,211)     (11,726)   (15,570)
                                                              --------    ---------    -------
    Net cash (used in) provided by financing activities.....   (34,824)      23,079     14,430
                                                              --------    ---------    -------
    Net increase (decrease) in cash.........................       999       (1,855)     1,023
Cash at beginning of year...................................         0        1,855        832
                                                              --------    ---------    -------
CASH AT END OF YEAR.........................................  $    999    $       0    $ 1,855
                                                              ========    =========    =======
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
  Cash paid during the year for:
    Interest................................................  $  5,147    $   4,869    $ 3,443
    Income taxes............................................  $ 56,112    $  34,100    $54,822
</TABLE>
 
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES:
 
<TABLE>
<S>                                                           <C>         <C>          <C>
Book value of spin-off of Chicago Title and Trust Company...  $413,767    $       0    $     0
</TABLE>
 
     In 1996, Alleghany made a noncash capital contribution to its consolidated
subsidiaries by contributing two newly-acquired companies with a combined cost
basis of $994.
 
           See accompanying Notes to Condensed Financial Statements.
<PAGE>   48
 
                                  SCHEDULE II
 
                             ALLEGHANY CORPORATION
                    NOTES TO CONDENSED FINANCIAL STATEMENTS
                                 (in thousands)
 
     1.  INVESTMENT IN CONSOLIDATED SUBSIDIARIES.  Reference is made to Note 2
of the Notes to Consolidated Financial Statements incorporated herein by
reference for information regarding the spin-off of Chicago Title and Trust.
 
     2.  LONG-TERM DEBT.  Reference is made to Note 6 of the Notes to
Consolidated Financial Statements incorporated herein by reference for
information regarding the significant provisions of the revolving credit loan
agreement of Alleghany. Included in long-term debt in the accompanying condensed
balance sheets is $19,123 in 1998 and 1997 of intercompany notes payable due to
Alleghany Funding.
 
     3.  INCOME TAXES.  Reference is made to Note 7 of the Notes to Consolidated
Financial Statements incorporated herein by reference.
 
     4.  COMMITMENTS AND CONTINGENCIES.  Reference is made to Note 13 of the
Notes to Consolidated Financial Statements incorporated herein by reference.
 
     5.  STOCKHOLDERS' EQUITY.  Reference is made to Note 8 of the Notes to
Consolidated Financial Statements incorporated herein by reference with respect
to stockholders' equity and surplus available for dividend payments to Alleghany
from its subsidiaries.
<PAGE>   49
 
                                                                    SCHEDULE III
 
                     ALLEGHANY CORPORATION AND SUBSIDIARIES
 
                      SUPPLEMENTARY INSURANCE INFORMATION
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                      AT DECEMBER 31                     FOR THE YEAR ENDED DECEMBER 31
                                      ----------------------------------------------   ----------------------------------
                                                      FUTURE
                                                      POLICY                 OTHER                             BENEFITS,
                                                    BENEFITS,                POLICY                             CLAIMS,
                                       DEFERRED      LOSSES,                 CLAIMS                              LOSSES
                                        POLICY        CLAIMS                  AND                    NET          AND
                                      ACQUISITION    AND LOSS    UNEARNED   BENEFITS   PREMIUM    INVESTMENT   SETTLEMENT
YEAR                     SEGMENT         COST        EXPENSES    PREMIUMS   PAYABLE    REVENUE      INCOME      EXPENSES
- ----                     -------      -----------   ----------   --------   --------   --------   ----------   ----------
<S>                    <C>            <C>           <C>          <C>        <C>        <C>        <C>          <C>
1998.................  Property and
                       casualty
                       reinsurance      $93,397     $1,554,818   $389,603      $0      $420,809    $80,404      $288,259
                                        =======     ==========   ========      ==      ========    =======      ========
1997.................  Property and
                       casualty
                       reinsurance      $29,644     $1,159,070   $136,288      $0      $376,672    $75,531      $261,828
                                        =======     ==========   ========      ==      ========    =======      ========
1996.................  Property and
                       casualty
                       reinsurance      $20,771     $1,110,020   $ 95,472      $0      $346,777    $63,184      $243,725
                                        =======     ==========   ========      ==      ========    =======      ========
 
<CAPTION>
                         FOR THE YEAR ENDED DECEMBER 31
                       -----------------------------------
 
                       AMORTIZATION
                       OF DEFERRED
                          POLICY        OTHER
                       ACQUISITION    OPERATING   PREMIUMS
YEAR                      COSTS       EXPENSES    WRITTEN
- ----                   ------------   ---------   --------
<S>                    <C>            <C>         <C>
1998.................
                         $113,170      $54,805    $438,162
                         ========      =======    ========
1997.................
                         $ 94,444      $51,769    $414,191
                         ========      =======    ========
1996.................
                         $ 88,895      $40,373    $360,305
                         ========      =======    ========
</TABLE>
<PAGE>   50
 
                                                                     SCHEDULE IV
 
                     ALLEGHANY CORPORATION AND SUBSIDIARIES
 
                                  REINSURANCE
                      THREE YEARS ENDED DECEMBER 31, 1998
                                 (IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                          PERCENTAGE
                                                   CEDED TO      ASSUMED                  OF AMOUNT
                                        GROSS        OTHER      FROM OTHER      NET        ASSUMED
YEAR                     SEGMENT        AMOUNT     COMPANIES    COMPANIES      AMOUNT       TO NET
- ----                     -------       --------    ---------    ----------    --------    ----------
<S>                    <C>             <C>         <C>          <C>           <C>         <C>
1998.................  Property
                       and casualty
                       reinsurance
                       premiums        $144,812    $110,377      $386,374     $420,809         92%
                                       ========    ========      ========     ========      =====
1997.................  Property
                       and casualty
                       reinsurance
                       premiums        $112,158    $ 88,416      $352,930     $376,672         94%
                                       ========    ========      ========     ========      =====
1996.................  Property
                       and casualty
                       reinsurance
                       premiums        $ 85,437    $ 65,968      $327,308     $346,777      94.39%
                                       ========    ========      ========     ========      =====
</TABLE>
<PAGE>   51
 
                                                                     SCHEDULE VI
 
                     ALLEGHANY CORPORATION AND SUBSIDIARIES
 
             SUPPLEMENTAL INFORMATION CONCERNING PROPERTY-CASUALTY
                              INSURANCE OPERATIONS
                                 (IN THOUSANDS)
<TABLE>
<CAPTION>
                                                       DISCOUNT,
                                                        IF ANY,
                                                       DEDUCTED                                         CLAIMS AND CLAIM
                                          RESERVES    IN RESERVES                                          ADJUSTMENT
                                            FOR           FOR                                               EXPENSES
                                           UNPAID       UNPAID                                         INCURRED RELATED TO
                            DEFERRED       CLAIMS       CLAIMS                                         -------------------
AFFILIATION                  POLICY      AND CLAIM     AND CLAIM                             NET         (1)        (2)
WITH                       ACQUISITION   ADJUSTMENT   ADJUSTMENT    UNEARNED    EARNED    INVESTMENT   CURRENT     PRIOR
REGISTRANT                    COST        EXPENSES     EXPENSES     PREMIUMS   PREMIUMS     INCOME       YEAR       YEAR
- -----------                -----------   ----------   -----------   --------   --------   ----------   --------   --------
<S>                        <C>           <C>          <C>           <C>        <C>        <C>          <C>        <C>
1998
Consolidated property-
casualty entities........    $93,397     $1,554,818       $0        $389,603   $420,809    $80,404     $290,513   $(2,254)
                             =======     ==========       ==        ========   ========    =======     ========   ========
1997
Consolidated property-
casualty entities........    $29,644     $1,159,070       $0        $136,288   $376,672    $75,531     $267,530   $(5,702)
                             =======     ==========       ==        ========   ========    =======     ========   ========
1996
Consolidated property-
casualty entities........    $20,771     $1,110,020       $0        $ 95,472   $346,777    $63,184     $242,332   $  1,393
                             =======     ==========       ==        ========   ========    =======     ========   ========
 
<CAPTION>
 
                           AMORTIZATION
                           OF DEFERRED    PAID CLAIMS
AFFILIATION                   POLICY       AND CLAIM
WITH                       ACQUISITION    ADJUSTMENT    PREMIUMS
REGISTRANT                    COSTS        EXPENSES     WRITTEN
- -----------                ------------   -----------   --------
<S>                        <C>            <C>           <C>
1998
Consolidated property-
casualty entities........    $113,170      $192,031     $438,162
                             ========      ========     ========
1997
Consolidated property-
casualty entities........    $ 94,444      $210,015     $414,191
                             ========      ========     ========
1996
Consolidated property-
casualty entities........    $ 88,895      $139,689     $360,305
                             ========      ========     ========
</TABLE>
<PAGE>   52
 
                          INDEPENDENT AUDITORS' REPORT
 
The Board of Directors and Stockholders
Alleghany Corporation:
 
     Under date of February 19, 1999, we reported on the consolidated balance
sheets of Alleghany Corporation and subsidiaries as of December 31, 1998 and
1997 and the related consolidated statements of earnings, changes in common
stockholders' equity, and cash flows for each of the years in the three-year
period ended December 31, 1998 as contained in the 1998 annual report to
stockholders. These consolidated financial statements and our report thereon are
incorporated by reference in the Annual Report on Form 10-K for the year 1998.
In connection with our audits of the aforementioned consolidated financial
statements, we also have audited the related financial statements schedules as
listed in the accompanying index. These financial statements schedules are the
responsibility of the Company's management. Our responsibility is to express an
opinion on these financial statements schedules based on our audits.
 
     In our opinion, such financial statements schedules, when considered in
relation to the basic consolidated financial statements taken as a whole,
present fairly, in all material respects, the information set forth therein.
 
                                          /s/ KPMG LLP
 
                                          KPMG LLP
 
New York, New York
February 19, 1999
<PAGE>   53
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
  3.01     Restated Certificate of Incorporation of Alleghany, as
           amended by Amendment accepted and received for filing by the
           Secretary of State of the State of Delaware on June 23,
           1988, filed as Exhibit 20 to Alleghany's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1988, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
  3.02     By-Laws of Alleghany as amended April 18, 1995, filed as
           Exhibit 3.1 to Alleghany's Quarterly Report on Form 10-Q for
           the quarter ended March 31, 1995, is incorporated herein by
           reference.
*10.01     Description of Alleghany Management Incentive Plan, filed as
           Exhibit 10.01 to Alleghany's Annual Report on Form 10-K for
           the year ended December 31, 1993, is incorporated herein by
           reference.
*10.02     Alleghany Corporation Deferred Compensation Plan as amended
           and restated as of December 15, 1992, filed as Exhibit 10.03
           to Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1992, is incorporated herein by reference.
*10.03     Alleghany 1993 Long-Term Incentive Plan, as amended and
           restated effective as of January 1, 1994, filed as Exhibit
           10.06(b) to Alleghany's Annual Report on Form 10-K for the
           year ended December 31, 1994, is incorporated herein by
           reference.
*10.04     Alleghany Supplemental Death Benefit Plan dated as of May
           15, 1985 and effective as of January 1, 1985, filed as
           Exhibit 10.08 to Old Alleghany's Annual Report on Form 10-K
           for the year ended December 31, 1985, is incorporated herein
           by reference (Securities and Exchange Commission File No.
           1-9371).
*10.05(a)  Trust Agreement Amendment made as of July 8, 1994 between
           Alleghany and Chemical Bank, filed as Exhibit 10.08(a) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1995, is incorporated herein by reference.
*10.05(b)  Alleghany Retirement Plan, as amended and restated on March
           14, 1995, filed as Exhibit 10.08(c) to Alleghany's Annual
           Report on Form 10-K for the year ended December 31, 1994, is
           incorporated herein by reference.
*10.05(c)  Amendments to Alleghany Retirement Plan, effective as of
           January 1, 1996, filed as Exhibit 10.1 to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended March
           31, 1996, is incorporated herein by reference.
*10.05(d)  Amendments to Alleghany Retirement Plan, effective as of
           January 1, 1998, filed as Exhibit 10.05(d) to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1997, is incorporated herein by reference.
*10.06     Alleghany Retirement COLA Plan dated and effective as of
           January 1, 1992, as adopted on March 17, 1992, filed as
           Exhibit 10.7 to Alleghany's Annual Report on Form 10-K for
           the year ended December 31, 1991, is incorporated herein by
           reference (Securities and Exchange Commission File No.
           1-9371).
*10.07     Description of Alleghany Group Long Term Disability Plan
           effective as of July 1, 1995, filed as Exhibit 10.10 to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1995, is incorporated herein by reference.
*10.08     Alleghany Amended and Restated Directors' Stock Option Plan
           effective as of April 20, 1993, filed as Exhibit 10.1 to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1993, is incorporated herein by reference.
*10.09     Alleghany Directors' Equity Compensation Plan, effective as
           of January 16, 1995, filed as Exhibit 10.11 to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1994, is incorporated herein by reference.
</TABLE>
<PAGE>   54
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
*10.10     Alleghany Non-Employee Directors' Retirement Plan effective
           July 1, 1990, filed as Exhibit 10.1 to Alleghany's Quarterly
           Report on Form 10-Q for the quarter ended June 30, 1990, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
*10.11(a)  Description of compensatory arrangement between Alleghany
           and Paul F. Woodberry, filed as Exhibit 10.11(a) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1997, is incorporated herein by reference.
*10.11(b)  Description of long-term incentive arrangement between
           Alleghany and Paul F. Woodberry, filed as Exhibit 10.21(b)
           to Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1995, is incorporated herein by reference.
 10.12     Revolving Credit Loan Agreement dated as of June 14, 1995
           among Alleghany and Chemical Bank, filed as Exhibit 10.1 to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1995, is incorporated herein by reference.
 10.12(a)  First Amendment dated as of April 8, 1998, to the Revolving
           Credit Loan Agreement dated as of June 14, 1995, among
           Alleghany and Chase Manhattan Bank (formerly known as
           Chemical Bank), filed as Exhibit 10.1 to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended March
           31, 1998, is incorporated herein by reference.
 10.13(a)  Distribution Agreement dated as of June 16, 1998 by and
           between Alleghany Corporation and Chicago Title Corporation
           (the "Spin-Off Distribution Agreement"), filed as Exhibit
           2.1(a) to Chicago Title Corporation's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1998, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 001-13995).
 10.13(b)  List of Contents of Exhibits to the Spin-Off Distribution
           Agreement, filed as Exhibit 2.1(b) to Chicago Title
           Corporation's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1998, is incorporated herein by reference
           (Securities and Exchange Commission File No. 001-13995).
 10.13(c)  Tax Sharing Agreement dated as of June 17, 1998 by and among
           Alleghany Corporation and Chicago Title Corporation, filed
           as Exhibit 10.2 to Chicago Title Corporation's Quarterly
           Report on Form 10-Q for the quarter ended June 30, 1998, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 001-13995).
 10.14     Distribution Agreement dated as of May 1, 1987 between
           Alleghany and MSL Industries, Inc., filed as Exhibit 10.21
           to Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1987, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.15     Amendment to Distribution Agreement dated June 29, 1987,
           effective as of May 1, 1987, between Alleghany and MSL
           Industries, Inc., filed as Exhibit 10.22 to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1987, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
 10.16(a)  Stock Purchase Agreement dated as of May 18, 1994 by and
           between First Interstate Bank of California and Alleghany
           (the "Sacramento Savings Stock Purchase Agreement"), filed
           as Exhibit 10.1(a) to Alleghany's Quarterly Report on Form
           10-Q for the quarter ended June 30, 1994, is incorporated
           herein by reference.
 10.16(b)  List of Contents of Exhibits and Schedules to the Sacramento
           Savings Stock Purchase Agreement, filed as Exhibit 10.1(b)
           to Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1994, is incorporated herein by reference.
</TABLE>
<PAGE>   55
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.17(a)  Note Purchase Agreement dated as of January 15, 1995 by and
           among Alleghany Properties, Inc., Alleghany and Hartford
           Life Insurance Company Separate Account CRC (the "Alleghany
           Properties Note Purchase Agreement"), filed as Exhibit
           10.28(a) to Alleghany's Annual Report on Form 10-K for the
           year ended December 31, 1994, is incorporated herein by
           reference. Agreements dated as of January 15, 1995 among
           Alleghany Properties, Inc., Alleghany and each of
           Transamerica Life Insurance & Annuity Company, Transamerica
           Occidental Life Insurance Company, United of Omaha Life
           Insurance Company, Mutual of Omaha Insurance Company, The
           Lincoln National Life Insurance Company, Knights of Columbus
           and Woodmen Accident and Life Company are omitted pursuant
           to Instruction 2 of Item 601 of Regulation S-K.
 10.17(b)  List of Contents of Annexes and Exhibits to the Alleghany
           Properties Note Purchase Agreement, filed as Exhibit
           10.28(b) to Alleghany's Annual Report on Form 10-K for the
           year ended December 31, 1994, is incorporated herein by
           reference.
 10.17(c)  Amendment to Alleghany Properties Note Purchase Agreement
           dated as of June 23, 1995 among Alleghany, Alleghany
           Properties, Inc. and the Purchasers listed on Annex 1 to the
           Alleghany Properties Note Purchase Agreement, filed as
           Exhibit 10.1 to Alleghany's Quarterly Report on Form 10-Q
           for the quarter ended September 30, 1995, is incorporated
           herein by reference.
 10.17(d)  Amendment No. 2 to Alleghany Properties Note Purchase
           Agreement dated as of November 6, 1995 among Alleghany,
           Alleghany Properties, Inc. and the Purchasers listed on
           Annex 1 to the Alleghany Properties Note Purchase Agreement,
           filed as Exhibit 10.28(d) to Alleghany's Annual Report on
           Form 10-K for the year ended December 31, 1995, is
           incorporated herein by reference.
 10.17(e)  Third Amendment to Alleghany Properties Note Purchase
           Agreement dated as of December 11, 1998 by and among
           Alleghany, Alleghany Properties, Inc., Hartford Life
           Insurance Company, Transamerica Life Insurance & Annuity
           Company, Transamerica Occidental Life Insurance Company,
           United of Omaha Life Insurance Company, Mutual of Omaha
           Insurance Company, The Lincoln National Life Insurance
           company, Knights of Columbus and Woodmen Accident and Life
           Company.
 10.18(a)  Note Purchase Agreement dated as of December 11, 1998 by and
           among Alleghany Properties, Inc., Alleghany and United of
           Omaha Life Insurance Company (the "Alleghany Properties 1998
           Note Purchase Agreement"). Agreements dated as of December
           11, 1998 among Alleghany Properties, Inc., Alleghany and
           each of Companion Life Insurance Company, Hartford Life
           Insurance Company, The Lincoln National Life Insurance
           Company, and First Penn-Pacific Life Insurance Company are
           omitted pursuant to Instruction 2 of Item 601 of Regulation
           S-K.
 10.18(b)  List of Contents of Annexes and Exhibits to the Alleghany
           Properties 1998 Note Purchase Agreement. Alleghany agrees to
           furnish supplementally a copy of any omitted annex or
           exhibit to the Securities and Exchange Commission upon
           request.
 10.19(a)  Installment Sales Agreement dated December 8, 1986 by and
           among Alleghany, Merrill Lynch, Pierce, Fenner & Smith
           Incorporated and Merrill Lynch & Co., Inc., filed as Exhibit
           10.10 to Alleghany's Annual Report on Form 10-K for the year
           ended December 31, 1986, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.19(b)  Intercreditor and Collateral Agency Agreement dated as of
           October 20, 1997 among The Chase Manhattan Bank, Barclays
           Bank PLC and Alleghany Funding Corporation, filed as Exhibit
           10.1 to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended September 30, 1997, is incorporated herein by
           reference (Securities and Exchange Commission File No.
           1-9371).
</TABLE>
<PAGE>   56
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.19(c)  Master Agreement dated as of October 20, 1997 between
           Barclays Bank PLC and Alleghany Funding Corporation, and
           related Amended Confirmation dated October 24, 1997 between
           Barclays Bank PLC and Alleghany Funding Corporation, filed
           as Exhibit 10.2 to Alleghany's Quarterly Report on Form 10-Q
           for the quarter ended September 30, 1997, are incorporated
           herein by reference (Securities and Exchange Commission File
           No. 1-9371).
 10.19(d)  Indenture dated as of October 20, 1997 between Alleghany
           Funding Corporation and The Chase Manhattan Bank, filed as
           Exhibit 10.3 to Alleghany's Quarterly Report on Form 10-Q
           for the quarter ended September 30, 1997, is incorporated
           herein by reference (Securities and Exchange Commission File
           No. 1-9371).
 10.20(a)  Stock Purchase Agreement dated as of July 1, 1991 among
           Celite Holdings Corporation, Celite Corporation and Manville
           International, B.V. (the "Celite Stock Purchase Agreement"),
           filed as Exhibit 10.2(a) to Alleghany's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1991, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
 10.20(b)  List of Contents of Exhibits and Schedules to the Celite
           Stock Purchase Agreement, filed as Exhibit 10.2(b) to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.21(a)  Joint Venture Stock Purchase Agreement dated as of July 1,
           1991 among Celite Holdings Corporation, Celite Corporation
           and Manville Corporation (the "Celite Joint Venture Stock
           Purchase Agreement"), filed as Exhibit 10.3(a) to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.21(b)  List of Contents of Exhibits and Schedules to the Celite
           Joint Venture Stock Purchase Agreement, filed as Exhibit
           10.3(b) to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1991, is incorporated herein by
           reference (Securities and Exchange Commission File No.
           1-9371).
 10.22(a)  Asset Purchase Agreement dated as of July 1, 1991 among
           Celite Holdings Corporation, Celite Corporation and Manville
           Sales Corporation (the "Celite Asset Purchase Agreement"),
           filed as Exhibit 10.4(a) to Alleghany's Quarterly Report on
           Form 10-Q for the quarter ended June 30, 1991, is
           incorporated herein by reference (Securities and Exchange
           Commission File No. 1-9371).
 10.22(b)  List of Contents of Exhibits and Schedules to the Celite
           Asset Purchase Agreement, filed as Exhibit 10.4(b) to
           Alleghany's Quarterly Report on Form 10-Q for the quarter
           ended June 30, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.22(c)  Amendment No. 1 dated as of July 31, 1991 to the Celite
           Asset Purchase Agreement, filed as Exhibit 10.32(c) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1991, is incorporated herein by reference
           (Securities and Exchange Commission File No. 1-9371).
 10.23(a)  Acquisition Related Agreement dated as of July 1, 1991, by
           and between Celite Holdings Corporation, Celite Corporation
           and Manville Corporation (the "Celite Acquisition Related
           Agreement"), filed as Exhibit 10.5(a) to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended June 30,
           1991, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
</TABLE>
<PAGE>   57
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.23(b)  List of Contents of Exhibits to the Celite Acquisition
           Related Agreement, filed as Exhibit 10.5(b) to Alleghany's
           Quarterly Report on Form 10-Q for the quarter ended June 30,
           1991, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
 10.23(c)  Amendment dated as of July 31, 1991 to Celite Acquisition
           Related Agreement, filed as Exhibit 10.33(c) to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1991, is incorporated herein by reference (Securities and
           Exchange Commission File No. 1-9371).
 10.24(a)  Amended and Restated Credit Agreement dated as of March 10,
           1995 (the "World Minerals Credit Agreement") among Mineral
           Holdings Inc., World Minerals, the banks named therein,
           NationsBank, N.A. (Carolinas), Bank of America National
           Trust and Savings Association and Chemical Bank, filed as
           Exhibit 10.36(a) to Alleghany's Annual Report on Form 10-K
           for the year ended December 31, 1995, is incorporated herein
           by reference.
 10.24(b)  List of Contents of Exhibits and Annexes to World Minerals
           Credit Agreement, filed as Exhibit 10.36(b) to Alleghany's
           Annual Report on Form 10-K for the year ended December 31,
           1995, is incorporated herein by reference.
 10.25(a)  Stock Purchase Agreement dated as of July 28, 1993 (the
           "Underwriters Stock Purchase Agreement") among Alleghany,
           The Continental Corporation, Goldman, Sachs & Co. and
           certain funds which Goldman, Sachs & Co. either control or
           of which they are general partner, Underwriters Re Holdings
           Corp. and Underwriters Re Corporation, filed as Exhibit
           10.3(a) to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1993, is incorporated herein by
           reference.
 10.25(b)  List of Contents of Exhibits and Schedules to the
           Underwriters Stock Purchase Agreement, filed as Exhibit
           10.3(b) to Alleghany's Quarterly Report on Form 10-Q for the
           quarter ended June 30, 1993, is incorporated herein by
           reference.
 10.26     Indenture dated as of June 25, 1996 between URC Holdings
           Corp. (now known as Underwriters Re Group, Inc.) and The
           First National Bank of Chicago, as trustee, relating to the
           7 7/8% Senior Notes due 2006, filed as Exhibit 10.30(j) to
           Alleghany's Annual Report on Form 10-K for the year ended
           December 31, 1996, is incorporated herein by reference.
 10.27(a)  Amended and Restated Credit Agreement dated as of December
           31, 1998 among Underwriters Re Group, Inc., the Lenders
           named therein and The First National Bank of Chicago, as
           Agent (the "Underwriters Credit Agreement").
 10.27(b)  List of Contents of Exhibits to the Underwriters Credit
           Agreement. Alleghany agrees to furnish supplementally a copy
           of any omitted exhibit to the Securities and Exchange
           Commission upon request.
 10.27(c)  Guaranty dated as of December 31, 1998 by Underwriters
           Reinsurance Company in favor of The First National Bank of
           Chicago, as Agent, pursuant to the Underwriters Credit
           Agreement.
 10.28(a)  Agreement and Plan of Amalgamation dated as of July 30, 1998
           by and among Underwriters Reinsurance Company, Underwriters
           Acquisition Company Ltd. and Venton Holdings Ltd. (the
           "Amalgamation Agreement").
 10.28(b)  List of Contents of Exhibits to the Amalgamation Agreement.
           Alleghany agrees to furnish supplementally a copy of any
           omitted exhibit to the Securities and Exchange Commission
           upon request.
 10.28(c)  Amendment No. 1 dated as of September 24, 1998 to the
           Amalgamation Agreement (the "Amalgamation Amendment No. 1").
</TABLE>
<PAGE>   58
 
<TABLE>
<CAPTION>
 EXHIBIT
 NUMBER                            DESCRIPTION
 -------                           -----------
<C>        <S>
 10.28.(d) List of Contents of Exhibits to the Amalgamation Amendment
           No. 1. Alleghany agrees to furnish supplementally a copy of
           any omitted exhibit to the Securities and Exchange
           Commission upon request.
 10.29(a)  Letter of Credit Facility and Reimbursement Agreement dated
           as of October 23, 1998 by and among Venton Underwriting
           Limited, Talbot Underwriting Limited, Underwriters Re Group,
           Inc., Underwriters Reinsurance Company, the Banks parties
           thereto, Mellon Bank, N.A., Dresdner Kleinwort Benson North
           America LLC and Dresdner Bank AG, New York and Grand Cayman
           Branches (the "Underwriters Letter of Credit Facility").
 10.29(b)  List of Contents of Exhibits to the Underwriters Letter of
           Credit Facility. Alleghany agrees to furnish supplementally
           a copy of any omitted exhibit to the Securities and Exchange
           Commission upon request.
 10.29(c)  First Amendment dated as of November 25, 1998 to the
           Underwriters Letter of Credit Facility.
 10.29(d)  Second Amendment dated as of December 8, 1998 to the
           Underwriters Letter of Credit Facility.
 10.30(a)  Agreement and Plan of Merger dated as of August 22, 1996
           among Chicago Title of Colorado, Inc. ("CT of Colorado"),
           Alleghany Acquisition Corporation, Alleghany and each of the
           shareholders of CT of Colorado (the "CT of Colorado Merger
           Agreement"), filed as Exhibit 2.1 to Alleghany's
           Registration Statement on Form S-3 (Registration No.
           333-13971), is incorporated herein by reference.
 10.30(b)  List of Contents of Exhibits to the CT of Colorado Merger
           Agreement, filed as Exhibit 2.2 to Alleghany's Registration
           Statement on Form S-3 (Registration No. 333-13971), is
           incorporated herein by reference.
 13        Pages 3 through 5, 7, 9 through 11, 13 through 15, 17, 19,
           22, and 24 through 46 of the Annual Report to Stockholders
           of Alleghany for the year 1998.
 21        List of subsidiaries of Alleghany.
 23        Consent of KPMG LLP, independent certified public
           accountants, to the incorporation by reference of their
           reports relating to the financial statements and related
           schedules of Alleghany and subsidiaries in Alleghany's
           Registration Statements on Form S-8 (Registration No.
           33-27598), Form S-8 (Registration No. 333-323), Form S-8
           (Registration No. 333-37237), Form S-8 (Registration No.
           333-57133), Form S-3 (Registration No. 33-55707), Form S-3
           (Registration No. 33-62477), Form S-3 (Registration No.
           333-09881), and Form S-3 (Registration No. 333-13971).
 27        Financial Data Schedule.
</TABLE>
 
- ---------------
* Compensatory plan or arrangement.

<PAGE>   1
                                                                Exhibit 10.17(e)
                   THIRD AMENDMENT TO NOTE PURCHASE AGREEMENT

         THIS THIRD AMENDMENT TO NOTE PURCHASE AGREEMENT (this "AGREEMENT") is
made as of December 11, 1998 by and among ALLEGHANY PROPERTIES, INC. (the,
"COMPANY"), a Delaware corporation, ALLEGHANY CORPORATION (the "PARENT"), a
Delaware corporation, HARTFORD LIFE INSURANCE COMPANY ("HARTFORD LIFE"),
TRANSAMERICA LIFE INSURANCE & ANNUITY COMPANY ("TRANSAMERICA LIFE"),
TRANSAMERICA OCCIDENTAL LIFE INSURANCE COMPANY ("TRANSAMERICA"), UNITED OF OMAHA
LIFE INSURANCE COMPANY ("OMAHA LIFE"), MUTUAL OF OMAHA INSURANCE COMPANY
("MUTUAL OF OMAHA"), THE LINCOLN NATIONAL LIFE INSURANCE COMPANY ("LINCOLN
NATIONAL"), KNIGHTS OF COLUMBUS ("KNIGHTS OF COLUMBUS"), WOODMEN ACCIDENT AND
LIFE COMPANY ("WOODMEN ACCIDENT") (Hartford Life, Transamerica Life,
Transamerica, Omaha Life, Mutual of Omaha, Lincoln National, Knights of Columbus
and Woodmen Accident are herein referred to collectively as the "NOTEHOLDERS").

                                    RECITALS

         WHEREAS, the Company and the Parent entered into those separate Note
Purchase Agreements (as in effect prior to the effectiveness of this Agreement,
collectively, the "EXISTING NOTE PURCHASE AGREEMENT" and as amended by this
Agreement, the "AMENDED NOTE PURCHASE AGREEMENT"), each dated as of January 15,
1995, with the Noteholders, pursuant to which the Company sold, and the
Noteholders purchased the Company's 8.62% Senior Notes due February 23, 2000 in
the aggregate original principal amount of Fifty Million Dollars ($50,000,000)
(the "NOTES");

         WHEREAS, the Noteholders, are the holders of one hundred percent (100%)
of the Notes outstanding as of the Effective Time (defined below);

         WHEREAS, the Company and the Parent are contemporaneously entering into
those separate Note Purchase Agreements (collectively, the "1998 NOTE PURCHASE
AGREEMENT"), each dated as of the date hereof, with the Purchasers identified on
Annex 1 thereto, pursuant to which the Company has agreed to sell, and such
Purchasers have agreed to purchase the Company's 6.83% Senior Notes due December
11, 2004 in the aggregate original principal amount of Forty Million Dollars
($40,000,000);

         WHEREAS, in connection with the execution and delivery of the 1998 Note
Purchase Agreement the Noteholders, the Company and the Parent wish to amend
certain provisions of the Existing Note Purchase Agreement and have agreed to be
bound by the Amended Note Purchase Agreement, in each case, pursuant to and in
accordance with the provisions hereof;

         NOW, THEREFORE, in consideration of the foregoing, the mutual premises,
covenants and agreements contained herein, and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto agree as follows:

1.       DEFINED TERMS

         Unless otherwise defined herein, terms that are defined in the Existing
Note Purchase Agreement are used herein as so defined.
<PAGE>   2
2.       AMENDMENTS

         2.1      AMENDMENT OF EXISTING NOTE PURCHASE AGREEMENT.

         The Existing Note Purchase Agreement is hereby amended in the manner
specified in Exhibit A to this Agreement (such amendments herein referred to as,
the "AMENDMENTS").

         2.2      EFFECT OF AMENDMENT.

         Except as expressly amended hereby, the Existing Note Purchase
Agreement and the other Financing Documents shall continue in full force and
effect in accordance with the provisions thereof. Except as expressly provided
herein, this Agreement shall not be deemed (a) to be a waiver of, or consent to,
or a modification or amendment of, any other term or condition of the Existing
Note Purchase Agreement or any other Financing Document or (b) to prejudice any
right or rights which the Noteholders may have in the future under or in
connection with the Existing Note Purchase Agreement or any other Financing
Document.

         2.3 EFFECTIVE. This Agreement shall become effective upon execution and
delivery of this Agreement by each of the parties hereto. The term "Effective
Time" shall mean the first time all conditions set forth in Section 3 shall have
been satisfied (or waived by each of the Noteholders).

3.       CONDITIONS TO CONSENT OF REQUIRED HOLDERS

         The effectiveness of the Amendments are subject to satisfaction of the
following conditions precedent (or waiver of one or more of such conditions by
each of the Noteholders):

         3.1      WARRANTIES AND REPRESENTATIONS TRUE; COMPLIANCE WITH THIS 
                  AGREEMENT.

                  (a)      WARRANTIES AND REPRESENTATIONS TRUE. The warranties
         and representations contained in Section 4 hereof shall be true at the
         Effective Time with the same effect as though made on and as of that
         time.

                  (b)      COMPLIANCE WITH THIS AGREEMENT. Each of the Company
         and the Parent shall have performed and complied with all agreements
         and conditions contained herein that, in each case, are required to be
         performed or complied with by the Company and the Parent on or prior to
         the Effective Time, and such performance and compliance shall remain in
         effect at the Effective Time.

         3.2      OFFICERS' CERTIFICATES.

         The Noteholders shall have received from each of the Company and the
Parent

                  (a)      a certificate signed by the President, any
         Vice-President or the Treasurer of such Person, substantially in the
         form of Exhibit B hereto, with respect to the matters therein set
         forth, and


                                       2
<PAGE>   3
                  (b)      a certificate signed on behalf of such Person by the
         Secretary or an Assistant Secretary of such Person, substantially in
         the form of Exhibit C hereto, with respect to the matters therein set
         forth.

         3.3      FEES AND EXPENSES.

         The Company shall have paid the fees and disbursements of the
Noteholders special counsel reflected in a statement of such counsel rendered to
the Company.

         3.4      PROCEEDINGS SATISFACTORY.

         All proceedings taken in connection herewith and all documents and
papers relating thereto shall be satisfactory to the Noteholders and their
special counsel. The Noteholders and their special counsel shall have received
copies of such documents and papers as they may reasonably request in connection
therewith, all in form and substance satisfactory to the Noteholders and their
special counsel.

4.       REPRESENTATIONS AND WARRANTIES

         The Company and the Parent represent, warrant and covenant as of the
date hereof and as of the Effective Time:

                  (A)      Each of the representations and warranties contained
         in the 1998 Note Purchase Agreement and each of the other documents
         executed or delivered in connection therewith are true and correct as
         of the date hereof.

                  (B)      No Default or Event of Default has occurred or is
         continuing, nor does any event or condition exist that, upon the
         execution and delivery of this Agreement and the effectiveness of the
         Amendments, would constitute a Default or an Event of Default.

                  (C)      The execution and delivery of this Agreement by the
         Company and the Parent have been duly authorized by all requisite
         corporate action on the part of the Company and the Parent and will not
         violate any provisions of law, any order, judgment or decree of any
         court or other agency of government, or the organizational documents of
         the Company or the Parent, or any other agreement or instrument to
         which the Company or the Parent is a party, or by which the Company or
         the Parent is bound.

                  (D)      Each of the Company and the Parent shall take any and
         all such actions and execute any and all such instruments and documents
         as are reasonably requested for the purpose of effectuating this
         Agreement.

                  (E)      Neither this Agreement nor any financial statements
         and other certificates provided to the Noteholders pursuant to the
         provisions of the Existing Note Purchase Agreement, nor any other
         written statement furnished by or on behalf of the Company or the
         Parent to the Noteholders in connection with the proposal and
         negotiation of the Amendments contain any untrue statement of a
         material fact or omit a material fact 


                                       3
<PAGE>   4
         necessary to make the statements contained therein not misleading.
         There is no fact relating to any event or circumstance that has
         occurred or arisen since the last day of the fiscal year of the Company
         most recently ended that either the Company or the Parent has disclosed
         to the Noteholders in writing that has had or, so far as the Company
         can now reasonably foresee, could reasonably be expected to have a
         material adverse effect on the business, condition (financial or
         otherwise) or operations of the Company or the Parent.

                  (F)      Neither the nature of the Company or the Parent, or
         of their respective businesses or Properties, nor any relationship
         between the Company or the Parent and any other Person, nor any
         circumstance in connection with the execution and delivery of this
         Agreement, is such as to require an order, consent, approval, license,
         authorization or validation of, or filing, recording, registration or
         qualification with, any Governmental Authority on the part of the
         Company or the Parent as a condition to the execution, delivery or
         performance of this Agreement or the Amended Note Purchase Agreement,
         or the legality, validity, binding effect or enforceability of this
         Agreement or the Amended Note Purchase Agreement.

                  (G)      The obligations of the Company and the Parent set
         forth in this Agreement, the Amended Note Purchase Agreement, the Notes
         and other Financing Documents are valid, binding and enforceable in
         accordance with their respective terms, except as such enforceability
         may be: (i) limited by applicable bankruptcy, reorganization,
         arrangement, insolvency, moratorium, or other similar laws affecting
         the enforceability of creditors' rights generally and (ii) subject to
         the availability of equitable remedies.

5.       SURVIVAL

         All warranties, representations, certifications and covenants made by
any of the Company or the Parent in this Agreement or in any certificate or
other instrument delivered by either of them or on their behalf under this
Agreement shall be considered to have been relied upon by the Noteholders and
shall survive the execution of this Agreement, regardless of any investigation
made by or on behalf of the Noteholders. All statements in any such certificate
or other instrument shall constitute warranties and representations of the
Company and the Parent under this Agreement.

6.       GOVERNING LAW

         THIS AGREEMENT SMALL BE CONSTRUED IN ACCORDANCE WITH AND GOVERNED BY
THE LAWS OF THE STATE OF NEW YORK.

7.       COUNTERPARTS

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

                  [Remainder of page intentionally left blank. Next page is
signature page.]


                                       4
<PAGE>   5
         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
duly executed by their duly authorized representatives under seal, all as of the
day and year first above written.

                                   ALLEGHANY CORPORATION



                                   By_/s/ David B. Cuming_______________
                                            Name: David B. Cuming
                                            Title: Senior Vice President


                                   ALLEGHANY PROPERTIES, INC.


                                   By_/s/ David B. Cuming_________________
                                            Name: David B. Cuming
                                            Title: President


                                   HARTFORD LIFE INSURANCE COMPANY
                                   BY:      HARTFORD INVESTMENT SERVICES, INC.,
                                            ITS AGENT AND ATTORNEY-IN-FACT


                                   By_/s/ Betsy Roberts_____________________
                                            Name: Betsy Roberts
                                            Title: Senior Vice President

                                   TRANSAMERICA LIFE INSURANCE & ANNUITY
                                   COMPANY


                                   By_/s/ John M. Casparian _________________
                                            Name: John M. Casparian
                                            Title: Investment Officer

                                   TRANSAMERICA OCCIDENTAL LIFE INSURANCE 
                                   COMPANY


                                   By_/s/ John M. Casparian__________________
                                            Name: John M. Casparian
                                            Title: Investment Officer
<PAGE>   6
                                   UNITED OF OMAHA LIFE INSURANCE COMPANY


                                   By_/s/ Edwin H. Garrison, Jr._______________
                                            Name: Edwin H. Garrison, Jr.
                                            Title: First Vice President


                                   MUTUAL OF OMAHA INSURANCE COMPANY


                                   By_/s/ Edwin H. Garrison, Jr._______________
                                            Name: Edwin H. Garrison, Jr.
                                            Title: First Vice President


                                   THE LINCOLN NATIONAL LIFE INSURANCE COMPANY
                                   BY:      LINCOLN NATIONAL INVESTMENT 
                                            MANAGEMENT COMPANY, ITS 
                                            ATTORNEY-IN-FACT


                                   By_/s/ Timothy L. Powell___________________
                                            Name: Timothy L. Powell
                                            Title: Vice President


                                   KNIGHTS OF COLUMBUS


                                   By_/s/  Robert J. Lane  _____________________
                                            Name: Robert J. Lane
                                            Title: Assistant Supreme Secretary


                                   WOODMEN ACCIDENT AND LIFE COMPANY


                                   By_/s/ A.M. McCray_________________________
                                            Name: A.M. McCray
                                            Title: Senior Director, Securities 
                                                   Investments and Assistant 
                                                   Treasurer
<PAGE>   7
                                    EXHIBIT A

                 AMENDMENTS TO EXISTING NOTE PURCHASE AGREEMENT

1.       AMENDMENT OF SECTION 7 OF THE EXISTING NOTE PURCHASE AGREEMENT. Section
7 of the Existing Note Purchase Agreement is deleted in its entirety and the
following substituted in lieu thereof:

         "7.      COVENANTS

                  Each of the Parent and the Company covenants that on and after
         the Closing Date and so long as any of the Notes shall be outstanding:

                  7.1      PAYMENT OF TAXES AND CLAIMS. 

                  Each of the Parent and the Company will, and the Company will
         cause SPHI to, pay before they become delinquent,

                           (a)      all taxes, assessments and governmental
                  charges or levies imposed upon it or its Property, and

                           (b)      all claims or demands of materialmen,
                  mechanics, carriers, warehousemen, landlords and other like
                  Persons that, if unpaid, might result in the creation of a
                  Lien upon its Property,

         provided, that items of the foregoing description need not be paid

                                    (i)      while being contested in good faith
                           and by appropriate proceedings as long as adequate
                           book reserves have been established and maintained
                           and exist with respect thereto, and

                                    (ii)     so long as the title of the Parent,
                           the Company or SPHI, as the case may be, to, and its
                           right to use, such Property, is not materially
                           adversely affected thereby.

                  7.2      MAINTENANCE OF PROPERTIES; CORPORATE EXISTENCE;
                           ETC..2 MAINTENANCE OF PROPERTIES; CORPORATE
                           EXISTENCE; ETC.

                  Each of the Parent and the Company will, and the Company will
         cause SPHI to,

                           (a)      PROPERTY -- maintain, preserve and keep its
                  Property in good condition, ordinary wear and tear excepted,
                  and make all necessary renewals, replacements, additions,
                  betterments and improvements thereto, except where the failure
                  to do so (i) could not reasonably be expected to have a
                  Material Adverse Effect and (ii) is in conformity with the
                  marketing strategy of the Company (A) to maximize proceeds
                  from the sale of Real Estate Assets or (B) to sell the Real


                                  Exhibit A-1
<PAGE>   8
                  Estate Assets on an "as is" basis;

                           (b)      INSURANCE -- maintain, with financially
                  sound and reputable insurers, insurance with respect to its
                  Property and business against such casualties and
                  contingencies, of such types (including, without limitation,
                  insurance with respect to losses arising out of Property loss
                  or damage, public liability, business interruption, larceny,
                  workers' compensation, embezzlement or other criminal
                  misappropriation) and in such amounts as is customary in the
                  case of corporations of established reputations engaged in the
                  same or a similar business and similarly situated, it being
                  understood that the Parent, the Company and SPHI may
                  self-insure against hazards and risks with respect to which,
                  and in such amounts as, the Parent, the Company or SPHI in
                  good faith determines to be prudent and consistent with sound
                  financial and business practice;

                           (c)      FINANCIAL RECORDS -- keep accurate and
                  complete books of records and accounts in which full and
                  correct entries shall be made of all its business transactions
                  and which will permit the provision of accurate and complete
                  financial statements in accordance with GAAP, and the Parent
                  will cause each other Subsidiary to keep accurate and complete
                  books of records and accounts in which full and correct
                  entries shall be made of all its business transactions and
                  which will permit the provision of accurate and complete
                  financial statements in accordance with GAAP, to the extent
                  required by the provisions of Section 8.1(a);

                           (d)      CORPORATE EXISTENCE AND RIGHTS -- do or
                  cause to be done all things necessary to preserve and keep in
                  full force and effect its corporate existence, rights (charter
                  and statutory) and franchises, subject to Section 7.9, except
                  where the failure to do so could not reasonably be expected to
                  have a Material Adverse Effect; and

                           (e)      COMPLIANCE WITH LAW -- be in compliance with
                  all laws, ordinances or governmental rules or regulations to
                  which it is subject (including, without limitation, any
                  Environmental Protection Law) and obtain any licenses,
                  certificates, permits, franchises or other governmental
                  authorizations necessary to the ownership of its Properties or
                  to the conduct of its business if such non-compliance or
                  failure to obtain could reasonably be expected to have a
                  Material Adverse Effect or materially adversely affect the
                  ability of the Parent, the Company or SPHI to conduct in the
                  future the business it conducts at the time of such violation
                  or failure to obtain.


                                  Exhibit A-2
<PAGE>   9
                  7.3      PAYMENT OF NOTES AND MAINTENANCE OF OFFICE.

                  The Company will punctually pay, or cause to be paid, the
         principal of and interest (and Make-Whole Amount, if any) on, the
         Notes, as and when the same shall become due according to the terms
         hereof and of the Notes, and will maintain an office at the address of
         the Company set forth in Section ERROR! REFERENCE SOURCE NOT FOUND.
         where notices, presentations and demands in respect hereof or of the
         Notes may be made upon it. Such office will be maintained at such
         address until such time as the Company shall notify the holders of the
         Notes in writing of any change of location of such office, which will
         in any event be located within the United States of America.

                  7.4      PENSION PLANS.

                           (a)      COMPLIANCE. Each of the Parent and the
                  Company will, and will cause each ERISA Affiliate to, at all
                  times with respect to each Pension Plan, make timely payment
                  of contributions required to meet the minimum funding standard
                  set forth in ERISA or the IRC with respect thereto, and to
                  comply with all other applicable material provisions of ERISA
                  and the IRC.

                           (b)      RELATIONSHIP OF VESTED BENEFITS TO PENSION
                  PLAN ASSETS. The Parent or an ERISA Affiliate will contribute
                  sufficient amounts to each Pension Plan so that the present
                  value of all employee benefits vested under each Pension Plan
                  at any time will not exceed, by more than Two Million Five
                  Hundred Thousand Dollars ($2,500,000), the assets of such
                  Pension Plan allocable to such vested benefits at such time,
                  in each case determined pursuant to Section 7.4(c).

                           (c)      VALUATIONS. All assumptions and methods used
                  to determine the actuarial valuation of vested employee
                  benefits under Pension Plans and the present value of assets
                  of Pension Plans will be reasonable in the good faith judgment
                  of the Parent, the Company or the actuary engaged by the
                  Parent or the Company, as the case may be, and will comply
                  with all requirements of law.

                           (d)      PROHIBITED ACTIONS. Each of the Parent and
                  the Company will not, and will not permit any ERISA Affiliate
                  to:

                                    (i)      engage in any "prohibited
                           transaction" (as such term is defined in section 406
                           of ERISA or section 4975 of the IRC) that would
                           result in the imposition of a material tax or
                           penalty;

                                    (ii)     incur with respect to any Pension
                           Plan any material "accumulated funding deficiency"
                           (as such term is defined in section 302 of ERISA),
                           whether or not waived;

                                    (iii)    terminate any Pension Plan in a
                           manner that could result in 


                                  Exhibit A-3
<PAGE>   10
                           the imposition of a Lien on the Property of the
                           Parent, the Company or any Subsidiary pursuant to
                           section 4068 of ERISA or the creation of any
                           liability under section 4062 of ERISA;

                                    (iv)     fail to make any payment required
                           by section 515 of ERISA; or

                                    (v)      at any time be an "employer" (as
                           such term is defined in section 3 of ERISA) required
                           to contribute to any Multiemployer Plan or a
                           "substantial employer" (as such term is defined in
                           section 4001 of ERISA) required to contribute to any
                           Multiple Employer Pension Plan if, at such time, it
                           could reasonably be expected that the Parent, the
                           Company or any Subsidiary will incur withdrawal
                           liability in respect of such Multiemployer Plan or
                           Multiple Employer Pension Plan

                  if the aggregate amount of the taxes, penalties, funding
                  deficiencies, interest or other amounts and any other
                  liabilities in respect of any of the foregoing could
                  reasonably be expected to have a Material Adverse Effect.

                  7.5      LINE OF BUSINESS.

                  The Company will not, and will not permit SPHI to, engage in
         any business other than the ownership, operation and disposition of
         Real Estate Assets and activities reasonably related thereto.

                  7.6      INDEBTEDNESS.

                           (a)      TOTAL INDEBTEDNESS. The Company will not,
                  and will not permit SPHI to, incur or in any manner be or
                  become liable in respect of any Indebtedness, on and after the
                  Closing Date, except

                                    (i)      Indebtedness evidenced by the
                           Notes,

                                    (ii)     Indebtedness evidenced by the 1998
                           Notes, and

                                    (iii)    an additional amount of
                           Indebtedness of the Company and SPHI, determined on a
                           consolidated basis for such Persons, not exceeding
                           Ten Million Dollars ($10,000,000) in the aggregate at
                           any time outstanding.

                           (b)      INDEBTEDNESS COVERAGE. The Company will not
                  at any time permit the ratio of

                                    (i)      Qualified Indebtedness Coverage
                           Assets at such time to

                                    (ii)    the sum of


                                  Exhibit A-4
<PAGE>   11
                                    (A)      the aggregate of all Indebtedness
                           of the Company and SPHI at such time, determined on a
                           consolidated basis for such Persons, plus

                                    (B)      Scheduled Interest Payments at such
                           time, plus

                                    (C)      the amount of Operating Expenses
                           that the Company and SPHI would be permitted to incur
                           on such date pursuant to Section 7.8, plus

                                    (D)      if such time is on or after the
                           date the last Real Estate Asset is sold and prior to
                           the first date of the establishment of the Defeasance
                           Trust pursuant to Section 7.15, the Make-Whole Amount
                           in respect of the Notes and the 1995 Notes at such
                           time

                  to be less than 1.0 to 1.0.

                  7.7      RESTRICTED INVESTMENTS AND RESTRICTED PAYMENTS.

                  The Company will not, and will not permit SPHI to, make any
         Restricted Investment and the Company will not declare or make, or
         become obligated to declare or make, any Restricted Payment (except for
         the Permitted Extraordinary Dividend), unless:

                           (a)      immediately after, and after giving effect
                  to, such Restricted Investment or such Restricted Payment, as
                  the case may be, the aggregate amount of all Restricted
                  Investments of the Company and SPHI at such time plus all
                  Restricted Payments declared, made or obligated to be declared
                  or made by the Company on and after the Closing Date would not
                  exceed the sum of

                                    (i)      Excess Cumulative Net Proceeds at
                           such time, plus

                                    (ii)    the greater of

                                            (A)      Zero Dollars ($0) and

                                            (B)      the result of

                                                     (1)      Cumulative  
                                                              Non-Essential
                                                              Contributions at
                                                              such time minus

                                                     (2)      the Transfer 
                                                              Contribution 
                                                              Amount at such 
                                                              time;

                           (b)      immediately prior to, immediately after, and
                  after giving effect to,


                                  Exhibit A-5
<PAGE>   12
                  such Restricted Investment or such Restricted Payment, as the
                  case may be, the ratio of

                                    (i)      Qualified Restricted Payment Assets
                           at such time to

                                    (ii)     the aggregate of all Indebtedness
                           of the Company and SPHI at such time

                  would not be less than 2.0 to 1.0; and

                           (c)      at the time of such declaration, making or
                  becoming obligated and immediately before, and after giving
                  effect to, such Restricted Investment or such Restricted
                  Payment and any concurrent transactions, no Default or Event
                  of Default exists or would exist.

                  Notwithstanding the requirements of clause (b) above and
         provided that the requirements of clauses (a) and (c) above have been
         satisfied, a cash dividend may be declared by the Company in respect of
         its capital stock in an amount, when added to the aggregate of other
         cash dividends made by the Company after the Closing Date (other than
         the Permitted Extraordinary Dividend) that does not exceed the
         aggregate amount of Cumulative Non-Essential Contributions at such time
         minus the Transfer Contribution Amount at such time.

                  7.8      OPERATING EXPENSES.

         The Company will not, and will not permit SPHI to:

                  (a)      incur any Operating Expense unless Cumulative
         Operating Expenses at such time would not exceed the sum of

                           (i)      Forty Million Dollars ($40,000,000), plus

                           (ii)     Operating Expense Contributions at such 
                  time; or

                  (b)      permit, at any time, the sum of

                           (i)      Cumulative Operating Expenses at such time
                  minus Operating Expense Contributions at such time, plus

                           (ii)     the aggregate amount outstanding on all 
                  Seller Notes at such time

         to exceed Ninety Million Dollars ($90,000,000).

                  7.9      MERGER AND CONSOLIDATION.


                                   Exhibit A-6
<PAGE>   13
                  The Company will not, and will not permit SPHI to, merge into,
         consolidate with, or sell, lease, transfer or otherwise dispose of all
         or substantially all of its Property (except as permitted under Section
         7.10) to, any other Person or permit any other Person to consolidate
         with or merge into it (except that SPHI may merge into or consolidate
         with the Company if the Company is the surviving corporation); provided
         that the foregoing restriction does not apply to the merger or
         consolidation of the Company with, or the sale, lease, transfer or
         other disposition by the Company of all or substantially all of its
         Property to, another corporation, if:

                           (a)      the Company is the surviving corporation
                  that results from such merger or consolidation; and

                           (b)      immediately prior to, and immediately after
                  the consummation of the transaction, and after giving effect
                  thereto, no Default or Event of Default exists or would exist.

                  7.10     TRANSFERS OF PROPERTY.10  TRANSFERS OF PROPERTY.

                  The Company will not, and will not permit SPHI to, sell, lease
         as lessor, transfer or otherwise dispose of any Property (collectively,
         "Transfers") (provided that "Transfers" shall not include transfers of
         cash for the purpose of paying Operating Expenses, interest, principal
         or Make-Whole Amount, if any, relating to the Notes and any other
         Indebtedness, Restricted Payments to the Parent and Permitted
         Investments), except:

                           (a)      Transfers of Property, other than Real
                  Estate Assets, if the sum of

                                    (i)      the book value of such Property at
                           the time of such Transfer, plus

                                    (ii)     the aggregate book value of all
                           other Property of the Company and SPHI, other than
                           Real Estate Assets, that has been the subject of a
                           Transfer (in each case measured at the time of the
                           Transfer of such Property) during the period
                           commencing on the Closing Date and ended at the time
                           of such Transfer,

                  would be less than Two Hundred Thousand Dollars ($200,000),
                  provided that the Company will not Transfer any shares of the
                  stock (or any warrants, rights or options to purchase stock or
                  other Securities exchangeable for or convertible into stock)
                  of SPHI;

                           (b)      any Transfer of Real Estate Assets for cash
                  consideration or Seller Notes, or a combination of cash
                  consideration and Seller Notes, so long as the aggregate
                  amount outstanding with respect to all Seller Notes does not
                  exceed Fifty Million Dollars ($50,000,000) and if either of
                  the following conditions would be satisfied with respect to
                  such Transfer:


                                   Exhibit A-7
<PAGE>   14
                                    (i)      the Transfer Consideration with
                           respect to such Transfer is at least equal to the
                           Designated Disposition Value of the Real Estate Asset
                           which is the subject of such Transfer, or

                                    (ii)    the sum of

                                            (A)      the Transfer Consideration
                                    with respect to such Transfer, plus

                                            (B)      the aggregate Transfer
                                    Consideration received by the Company and
                                    SPHI with respect to all other Real Estate
                                    Assets that have been the subject of a
                                    Transfer on and after the Closing Date, plus

                                            (C)      Cumulative Non-Essential
                                    Contributions at such time

                           would exceed the aggregate Designated Disposition
                           Values of all Real Estate Assets that have been the
                           subject of Transfers (in each case measured at the
                           time of such Transfer) on and after the Closing Date;
                           and

                           (c)      immediately prior to, and immediately after
                  the consummation of any such Transfer, and after giving effect
                  thereto, no Default or Event of Default exists or would exist.


                  7.11     PURCHASE OBLIGATION OF THE PARENT.

                  The Parent will purchase Real Estate Assets, selected by the
         Parent and for cash consideration equal to the Designated Disposition
         Value of such Real Estate Assets, in an amount sufficient to provide
         the Company with net cash proceeds, as necessary, to pay

                           (a)      the principal of and interest (and
                  Make-Whole Amount, if any) on, the Notes, and any amounts due
                  under Section 9.2(e) as and when the same shall become due
                  according to the terms hereof and of the Notes (including,
                  without limitation, the terms of Section 5.3), or

                           (b)      Operating Expenses due and payable at such
                  time.


                                   Exhibit A-8
<PAGE>   15
                  7.12     TRANSACTIONS WITH AFFILIATES.

                  The Company will not, and will not permit SPHI to, enter into
         any material transaction or material arrangement, including, without
         limitation, the purchase, sale or exchange of Property or the rendering
         of any service, with any Affiliate, except the sales contemplated by
         Section 7.11 or in the ordinary course of and pursuant to the
         reasonable requirements of the Company's or SPHI's business and upon
         fair and reasonable terms no less favorable to the Company or SPHI than
         would be obtained in a comparable arm's-length transaction with a
         Person not an Affiliate.

                  7.13     LIENS.

                           (a)      NEGATIVE PLEDGE. The Company will not, and
                  will not permit SPHI to, cause or permit to exist, or agree or
                  consent to cause or permit to exist in the future (upon the
                  happening of a contingency or otherwise), any of its Property,
                  whether now owned or hereafter acquired, to be subject to a
                  Lien except:

                                    (i)     Liens described in Part 7.13(a)(i) 
                           of Annex 3;

                                    (ii)    Liens

                                            (A)      arising from judicial
                                    attachments and judgments,

                                            (B)      securing appeal bonds or 
                                    supersedeas bonds, and

                                            (C)      arising in connection with 
                                    court proceedings (including, without
                                    limitation, surety bonds and letters of
                                    credit or any other instrument serving a
                                    similar purpose),

                           provided that (1) such Liens are fully released
                           within sixty (60) days of their creation or the
                           execution or other enforcement of such Liens is
                           effectively stayed, (2) the claims secured thereby
                           are being contested in good faith and by appropriate
                           proceedings and (3) adequate book reserves in
                           accordance with GAAP shall have been established and
                           maintained and shall exist with respect thereto;

                                    (iii)    Liens incurred or deposits made in
                           the ordinary course of business to secure the
                           performance of letters of credit, bids, tenders,
                           sales contracts, leases, statutory obligations,
                           construction obligations, bonds and assessments or
                           improvements, surety and performance bonds (of a type
                           other than set forth in Section 7.13(a)(ii)) and
                           other similar obligations not incurred in connection
                           with the borrowing of money, the obtaining of
                           advances or the payment of the deferred purchase
                           price of Property, provided that, after giving effect
                           to any enhancement in value and use of other Property
                           related to such Property as a result of such Lien,
                           (1) such 


                                   Exhibit A-9
<PAGE>   16
                           Liens do not in the aggregate materially detract from
                           the value of such Property and (2) the title of the
                           Company or SPHI to, and its right to use, such
                           Property, is not materially adversely affected
                           thereby;

                                    (iv)     Liens incurred or deposits made in
                           the ordinary course of business in connection with
                           workers' compensation, unemployment insurance, social
                           security and other like laws;

                                    (v)      Liens securing Property taxes,
                           assessments or governmental charges or levies or the
                           claims or demands of materialmen, mechanics,
                           carriers, warehousemen, vendors, landlords and other
                           like Persons, provided that the payment thereof is
                           not at the time required by Section 7.1; and

                                    (vi)     Liens in the nature of
                           reservations, exceptions, encroachments, easements,
                           rights-of-way, covenants, conditions, restrictions,
                           leases and other title exceptions or encumbrances
                           affecting real Property, provided that such
                           exceptions and encumbrances do not in the aggregate
                           detract from the value of such Property or interfere
                           with the use of such Property in the ordinary conduct
                           of the business of the Company and SPHI in a manner
                           that has or could reasonably be expected to have a
                           Material Adverse Effect.

                           (b)      EQUAL AND RATABLE LIEN; EQUITABLE LIEN. In
                  case any Property shall be subjected to a Lien in violation of
                  this Section 7.13, the Company will forthwith make or cause to
                  be made, to the fullest extent permitted by applicable law,
                  provision whereby the Notes will be secured equally and
                  ratably with all other obligations secured thereby pursuant to
                  such agreements and instruments as shall be approved by the
                  Required Holders, and the Company will cause to be delivered
                  to each holder of a Note an opinion of independent counsel to
                  the effect that such agreements and instruments are
                  enforceable in accordance with their terms, and in any such
                  case the Notes shall have the benefit, to the full extent
                  that, and with such priority as, the holders of Notes may be
                  entitled under applicable law, of an equitable Lien on such
                  Property securing the Notes. Such violation of this Section
                  7.13 will constitute an Event of Default hereunder, whether or
                  not any such provision is made pursuant to this Section
                  7.13(b).

                           (c)      FINANCING STATEMENTS. The Company will not,
                  and will not permit SPHI to, sign or file a financing
                  statement under the Uniform Commercial Code of any
                  jurisdiction that names the Company or SPHI as debtor, or sign
                  any security agreement authorizing any secured party
                  thereunder to file any such financing statement, except, in
                  any such case, a financing statement filed or to be filed to
                  perfect or protect a security interest that the Company or
                  SPHI is entitled to create, assume or incur, or permit to
                  exist, under the foregoing provisions of this Section 7.13 or
                  to evidence for informational purposes a lessor's interest in
                  Property leased


                                  Exhibit A-10
<PAGE>   17
                  to the Company or SPHI.

                  7.14     PRIVATE OFFERING

                  Neither the Parent nor the Company will, nor will they permit
         any Person acting on their behalf to, offer the Notes or any part
         thereof or any similar Securities for issue or sale to, or solicit any
         offer to acquire any of the same from, any Person so as to bring the
         issuance and sale of the Notes within the provisions of section 5 of
         the Securities Act."

                  7.15     DEFEASANCE

                           (a)      ESTABLISHMENT OF DEFEASANCE TRUST. If at any
                  time neither the Company nor SPHI holds any Real Estate
                  Assets, the Company shall contemporaneously with the sale of
                  last Real Estate Asset and upon written notice (the "Trust
                  Notice") to the holders of Notes then outstanding, establish a
                  trust (the "Defeasance Trust"), solely in favor of all holders
                  of Notes then outstanding, and irrevocably and absolutely
                  assign, transfer, and convey to, and deposit into, said
                  Defeasance Trust an amount of United States Governmental
                  Obligations having interest and principal payments sufficient,
                  in the opinion of independent certified public accountants of
                  the Company expressed in a written certification thereof
                  delivered to the holders of the Notes, to pay in full all
                  remaining principal and interest payments, as the same shall
                  fall due, in respect of all Notes then outstanding. Anything
                  to the contrary contained herein notwithstanding, the Company
                  may, at its sole discretion and at any time upon the delivery
                  of a Trust Notice to the holders of Notes then outstanding,
                  elect to establish a Defeasance Trust.

                           (b)      DISCHARGE.  Provided that

                                    (i)      the Defeasance Trust, the trustee
                           thereof and the terms and conditions (as well as the
                           form and substance) of the indenture whereby the
                           Defeasance Trust shall have been established shall be
                           reasonably satisfactory to all holders of Notes then
                           outstanding (as evidenced by their written consent
                           thereto),

                                    (ii)     the purchase price of the United
                           States Governmental Obligations to be deposited into
                           the Defeasance Trust shall have been fully paid by
                           the Company, and such United States Governmental
                           Obligations shall have been so deposited into the
                           Defeasance Trust (and each holder of Notes then
                           outstanding shall have received written verification
                           thereof by the trustee of the Defeasance Trust) and
                           shall, as so deposited, be unencumbered by any Lien
                           and sufficient to pay all principal and interest to
                           fall due on the Notes then outstanding as provided in
                           Section 5.1 and in the Notes,


                                  Exhibit A-11
<PAGE>   18
                                    (iii)    the Company shall have (1) paid in
                           full all fees, costs and expenses of the trustee of
                           the Defeasance Trust and of all holders of Notes then
                           outstanding incurred in connection with the
                           preparation of the trust indenture and the
                           establishment of the Defeasance Trust, including,
                           without limitation, all reasonable attorney's fees
                           and disbursements, and (2) prepaid in full any and
                           all fees, costs and expenses of the trustee of the
                           Defeasance Trust for the entire term of the
                           Defeasance Trust,

                                    (iv)     the Company shall have no
                           continuing legal or equitable interest in the
                           Defeasance Trust or the United States Governmental
                           Obligations deposited into the Defeasance Trust
                           (other than a reversionary interest in any such
                           United States Governmental Obligations, or the
                           proceeds therefrom, remaining after the full, final
                           and indefeasible payment of all Notes and all
                           interest thereon) and shall have no right to direct
                           or instruct the trustee of the Defeasance Trust, or
                           to remove such trustee, or to otherwise require such
                           trustee to take any action with respect to such
                           United States Governmental Obligations or otherwise,

                                    (v)      no Event of Default shall have
                           occurred and be continuing at the time of such
                           deposit,

                                    (vi)     the Company shall have delivered
                           the Trust Notice to all holders of Notes then
                           outstanding and a legal opinion of counsel to the
                           Company, reasonably satisfactory to all holders of
                           Notes then outstanding (as evidenced by their written
                           approval thereof), stating, among other things which
                           any holder of Notes then outstanding may reasonably
                           request, that (1) the Defeasance Trust is validly
                           created and duly constituted and that the sole
                           beneficiaries thereof are the holders of Notes then
                           outstanding, (2) the United States Governmental
                           Obligations deposited therein were validly
                           contributed to the Defeasance Trust and constitute a
                           legal and valid res of the Defeasance Trust, (3) the
                           Company's actions in creating the Defeasance Trust
                           and contributing the United States Governmental
                           Obligations thereto were duly authorized and valid,
                           (4) the Company, as the settlor of the Defeasance
                           Trust, has no right, title or interest in and to the
                           Defeasance Trust or the res thereof (other than a
                           reversionary interest in any United States
                           Governmental Obligations or the proceeds thereof
                           remaining after the full, final and indefeasible
                           payment of all Notes and all interest thereon) and
                           has no power of direction, or right of removal, with
                           respect to the trustee of the Defeasance Trust, (5)
                           all fees, costs and expenses of the trustee for the
                           entire term of the Defeasance Trust have been prepaid
                           in full and (6) the creation of the Defeasance Trust
                           and the depositing of the United States Governmental
                           Obligations therein shall not, for IRC purposes with
                           respect to any holder of Notes then outstanding,
                           result in a taxable event whereby (x) such holder may
                           become liable to pay a tax on any gain deemed to have
                           arisen with respect to such transaction or 


                                  Exhibit A-12
<PAGE>   19
                           (y) such holder shall have been deemed to have
                           suffered a loss with respect to such transaction and
                           (7) such holder will be subject to Federal income tax
                           on the same amount, in the same manner and at the
                           same times as would be the case if the Notes were
                           paid in the accordance with their terms and the terms
                           of this Agreement and such defeasance and discharge
                           were not to occur;

                                    (vii)    all principal, interest costs,
                           expenses and other sums due and payable under the
                           this Agreement to the holders of Notes outstanding on
                           the date the Defeasance Trust is created shall have
                           been paid in full; and

                                    (viii)   the Company shall have delivered to
                           the holders of Notes then outstanding an opinion of
                           independent certified public accountants of the
                           Company, reasonably satisfactory to such holders,
                           stating that (i) the amount of United States
                           Government Obligations deposited in the Defeasance
                           Trust are sufficient to pay in full all remaining
                           principal and interest payments, as the same shall
                           fall due, in respect of all Notes then outstanding
                           and (ii) under GAAP the creation of the Defeasance
                           Trust and the depositing of the United States
                           Governmental Obligations therein shall not result,
                           with respect to any such holder, in an exchange of
                           the Note or Notes of such holder for all or part of
                           such United States Governmental Obligations which
                           exchange would result in a gain or loss being
                           realized by such holder under GAAP in respect of such
                           transaction,

                  then and in that case, all financial and restrictive covenants
                  in respect of the Company set forth in Section 7 (other than
                  this Section 7.15) of this Agreement shall be discharged;
                  provided, however, if the contribution to the Defeasance Trust
                  of any United States Governmental Obligations is invalidated,
                  declared to be fraudulent or preferential, set aside, or if
                  any such United States Governmental Obligations are required
                  to be returned or redelivered to the Company, or any
                  custodian, trustee, receiver or any other Person under any
                  bankruptcy act, state or federal law, common law or equitable
                  cause, then, to the extent of such invalidation, return or
                  redelivery, the financial and restrictive covenants set forth
                  in Section 7 of this Agreement shall be revived and restored.

                  As used in this Section 7.15, the term "United States
         Governmental Obligations" shall mean any direct obligation of, or
         obligation guaranteed by, the United States of America, or any agency
         controlled or supervised by or acting as instrumentality of the United
         States of America pursuant to authority granted by the Congress of the
         United States of America, so long as such obligation or guarantee shall
         have the benefit of the full faith and credit of the United States of
         America which shall have been pledged pursuant to authority granted by
         the Congress of the United States of America.


                                  Exhibit A-13
<PAGE>   20
                  7.16     PERFORMANCE OF AGREEMENT. 

                  The Parent shall not cause or permit the Company or SPHI to
         take any action, or fail to take any action, which would result in a
         violation of any term or condition of this Agreement.

2.       AMENDMENT OF SECTION 8.1 OF THE EXISTING NOTE PURCHASE AGREEMENT.
Subsections (iii) and (v) of clause (c) of Section 8.1 of the Existing Note
Purchase Agreement are deleted in their entirety and the following are
respectively substituted in lieu thereof:


                  "(III)   ERISA -- promptly upon becoming aware of the
         occurrence of any

                           (A)      "reportable event" (as such term is defined
                  in section 4043 of ERISA) and the regulations thereunder, for
                  which notice thereof has not been waived pursuant to such
                  regulations, or

                           (B)      "prohibited transactions" (as such term is
                  defined in section 406 or section 4975 of the IRC)

         in connection with any Pension Plan or any trust created thereunder if
         the liability to the Parent, the Company or any ERISA Affiliate, taken
         together with any other such liabilities could reasonably be expect to
         have a Material Adverse Effect, a written notice specifying the nature
         thereof, what action the Parent or the Company, as the case may be, is
         taking or proposes to take with respect thereto, and, when known, any
         action taken by the IRS, the DOL or the PBGC with respect thereto;"

                                      . . .

                  "(V)     OTHER ERISA NOTICES -- prompt written notice of and,
         where applicable, a description of

                           (A)      any notice from the PBGC in respect of the
                  commencement of any proceedings pursuant to section 4042 of
                  ERISA to terminate any Pension Plan or for the appointment of
                  a trustee to administer any Pension Plan,

                           (B)      any distress termination notice delivered to
                  the PBGC under section 4041 of ERISA in respect of any Pension
                  Plan, and any determination of the PBGC in respect thereof,

                           (C)      the placement of any Multiemployer Plan in
                  reorganization status under Title IV of ERISA,

                           (D)      any Multiemployer Plan becoming "insolvent"
                  (as such term is defined in section 4245 of ERISA) under Title
                  IV of ERISA,


                                  Exhibit A-14
<PAGE>   21
                           (E)      the whole or partial withdrawal of the
                  Parent or the Company or any ERISA Affiliate from any
                  Multiemployer Plan and the withdrawal liability incurred in
                  connection therewith, and

                           (F)      the withdrawal of the Parent or the Company
                  or any ERISA Affiliate from any Multiple Employer Pension Plan
                  and the withdrawal liability under ERISA incurred in
                  connection therewith;

         and, in each of the cases specified in this clause (v), where the
         effect of any such notice, condition or event or of any event or
         condition related thereto would reasonably be expected to have a
         Material Adverse Effect;"

3.       AMENDMENT OF SECTION 10.1 OF THE EXISTING NOTE PURCHASE AGREEMENT.

         (a)      AMENDMENT TO EXISTING DEFINITIONS. Section 10.1 of the
Existing Note Purchase Agreement is hereby amended by deleting the definitions
of "Closing Date," "Cumulative Operating Expenses," "Designated Disposition
Value," "Downgrade Event," "Excess Cumulative Net Proceeds," "Multiple Employer
Pension Plan," "Pension Plan," "Person," "Qualified Indebtedness Coverage
Assets," "Qualified Restricted Payment Assets," "Real Estate Loans" and
"Scheduled Interest Payments" and the following definitions are substituted
respectively in lieu thereof:

                  "CLOSING DATE -- means December 11, 1998."

                  "CUMULATIVE OPERATING EXPENSES -- means, at any time, the
         aggregate amount of Operating Expenses of the Company and SPHI,
         determined on a consolidated basis for such Persons, paid, or due and
         payable, from and including the Closing Date to such time."

                  "DESIGNATED DISPOSITION VALUE -- means, at any time, with
         respect to each Real Estate Asset, the amount set forth on Annex 4
         pertaining to such Real Estate Asset, adjusted as follows: the
         Designated Disposition Value shall, subject to the provisions of
         Section 8.2(c), be reduced

                           (a)      with respect to any Real Estate Property, on
                  a Pro-Rata Basis in the event that a portion or portions of
                  such Real Estate Property shall have been sold at or prior to
                  such time, or

                           (b)      with respect to any Real Estate Loan, on a
                  dollar-for-dollar basis to the extent that principal
                  reductions shall have been made on such Real Estate Loan at or
                  prior to such time;

         provided that in the case of any Real Estate Loan made by the Company
         or SPHI in the form of a Seller Note, the net book value (determined in
         accordance with GAAP) of such Seller Note shall in all cases be deemed
         to be its Designated Disposition Value. As used herein, the term
         "Pro-Rata Basis" means, with respect to any portion of any Real Estate


                                  Exhibit A-15
<PAGE>   22
         Property sold, the relationship of such portion sold to the portion
         retained by the Company on a basis which is reasonably related to the
         respective fair market values of the portions sold and retained at the
         time of such sale, provided that the sum of the Designated Disposition
         Value assigned to the portion sold plus the Designated Disposition
         Value assigned the portion retained shall equal the Designated
         Disposition Value of such Real Estate Property prior to adjustment."

                  "DOWNGRADE EVENT  --  means the existence or occurrence of any
         one or more of the  following conditions:

                           (a)      the Parent shall have senior unsecured debt
                  obligations with an actual credit rating of lower than "BBB-"
                  by S&P or lower than "Baa3" by Moody's,

                           (b)      the Parent shall have subordinated unsecured
                  debt obligations with an actual credit rating of lower than
                  "BB+" by S&P or lower than "Ba1" by Moody's or

                           (c)      the Parent shall fail to have any unsecured
                  debt obligations with a credit rating issued by S&P or
                  Moody's, unless

                                    (i)      the Company shall have obtained,
                           and shall maintain on an ongoing basis, at its
                           expense, private letter ratings of the Notes of at
                           least "BBB-" from S&P and of at least "Baa3" from
                           Moody's, or an Issuer Credit Rating (or a comparable
                           rating) of the Parent of at least "BBB-" from S&P and
                           an Issuer Rating (or a comparable rating) of the
                           Parent of at least "Baa3" from Moody's and

                                    (ii)     Consolidated Net Worth shall, at
                           all times, be at least Eight Hundred Million Dollars
                           ($800,000,000)."

                  "EXCESS CUMULATIVE NET PROCEEDS  -- means, at any time, an 
         amount equal to the result of

                           (a)      the aggregate net cash proceeds received by
                  the Company and SPHI from all Real Estate Assets sold, paid
                  down or repaid at or prior to such time minus

                           (b)      the aggregate of the Designated Disposition
                  Values for such Real Estate Assets, in each case determined as
                  of the date of sale, pay down or repayment of such Real Estate
                  Asset."

                  "MULTIPLE EMPLOYER PENSION PLAN -- means any employee benefit
         plan within the meaning of section 3(3) of ERISA (other than a
         Multiemployer Plan), subject to Title IV of ERISA, constituting a
         "single-employer plan" (as defined in section 4001 of ERISA) which has
         two (2) or more "contributing sponsors" (as defined in section 4001 of
         ERISA), at least 


                                  Exhibit A-16
<PAGE>   23
         two (2) of which are not under "common control" (as defined in section
         4001 of ERISA) and to which the Parent, the Company or any ERISA
         Affiliate contribute; provided that for purposes of this Agreement the
         Chicago Title & Trust Pension Plan shall be deemed not to be a Multiple
         Employer Pension Plan."

                  "PENSION PLAN -- means, at any time, any "employee pension
         benefit plan" (as defined in section 3 of ERISA) maintained at such
         time by the Parent, the Company or any ERISA Affiliate for employees of
         the Parent, the Company or such ERISA Affiliate, excluding any
         Multiemployer Plan, but including, without limitation, any Multiple
         Employer Pension Plan; provided that for purposes of this Agreement the
         Chicago Title & Trust Pension Plan shall be deemed not to be a Pension
         Plan."

                  "PERSON -- means an individual, partnership, corporation,
         limited liability company, trust, unincorporated organization, or a
         government or agency or political subdivision thereof."

                  "QUALIFIED INDEBTEDNESS COVERAGE ASSETS -- means

                  (a)      at any time, when the Company or SPHI holds Real
         Estate Assets, the sum (without duplication) of

                           (i)      the aggregate Allowable Value of all Real
                  Estate Assets held by the Company and SPHI at such time, plus

                           (ii)     cash of the Company and SPHI at such time,
                  plus

                           (iii)    Permitted Investments (other than cash and
                  Real Estate Assets) of the Company and SPHI at such time, and

                  (b)      at any time, when neither the Company nor SPHI holds
         any Real Estate Assets, cash of the Company and SPHI at such time.

         As used in this definition:

                           Allowable Value -- means,

                                    (i)      with respect to each North Natomas
                           Property, the Designated Disposition Value of such
                           Real Estate Property at such time

                                    (ii)     with respect to each Real Estate
                           Loan which is a Seller Note, the net book value
                           (determined in accordance with GAAP) of such Seller
                           Note at such time, and

                                    (iii)    with respect to each of the other
                           Real Estate Assets not covered by subclause (i) or
                           subclause (ii) above, the lesser of


                                  Exhibit A-17
<PAGE>   24
                                             (A)      the Designated Disposition
                                    Value of such Real Estate Asset at such time
                                    and

                                             (B)      the net book value 
                                    (determined in accordance with GAAP) of such
                                    Real Estate Asset at such time."

                  "QUALIFIED RESTRICTED PAYMENT ASSETS -- means, at any time, 
         the sum (without duplication) of

                           (a)      the lesser of

                                    (i)     the aggregate Designated Disposition
                           Value of all Real Estate Assets held by the Company
                           and SPHI at such time and

                                    (ii)     the Reserve for Disposition at such
                           time plus

                                             (A)      in the case of all Real 
                                    Estate Assets held by the Company and SPHI
                                    at such time other than the North Natomas
                                    Properties, the aggregate net book value
                                    (each as determined in accordance with GAAP)
                                    of such Real Estate Assets, and

                                            (B)       in the case of the North
                                    Natomas Properties, the aggregate Designated
                                    Disposition Value of such Real Estate
                                    Properties at such time,

                  plus

                           (b)      cash of the Company and SPHI at such time,
                  plus

                           (c)      Permitted Investments (other than cash and
                  Real Estate Assets) of the Company and SPHI at such time.

         As used in this definition:

                           Reserve for Disposition -- means, at any time, the 
                  lesser of

                                    (i)      Four Million Five Hundred
                           Thirty-One Thousand Three Hundred Seventy-Nine
                           Dollars ($4,531,379) and

                                    (ii)     the aggregate amount of reserves
                           for disposition reflected on Annex 4 and attributable
                           to Real Estate Assets other than the North Natomas
                           Properties owned by the Company and SPHI at such
                           time."

                  "REAL ESTATE LOANS -- means loans to be repaid to the Company
         or SPHI, 


                                  Exhibit A-18
<PAGE>   25
         including, without limitation, loans in the form of Seller Notes, that
         are secured by unimproved or improved land with no significant building
         improvements, which loans are available for sale by the Company or
         SPHI."

         "SCHEDULED INTEREST PAYMENTS -- means, at any time, the sum of

                           (a)      all future unpaid scheduled payments of
                  interest in respect of the Notes and the 1998 Notes at such
                  time plus

                           (b)      the aggregate amount of all future unpaid
                  scheduled payments of interest in respect of all other
                  Indebtedness of the Company and SPHI outstanding at such time,

         in each case without application of any "present value" discount
         thereto and assuming for such calculation that all principal payments
         on the Notes and such other Indebtedness will be paid in accordance
         with the regularly scheduled terms."

         (b)      ADDITION OF NEW DEFINITIONS. Section 10.1 is amended by adding
the following definitions in their appropriate alphabetical order:

                  "1998 NOTES -- means the Company's 6.83% Senior Notes due
         December 11, 2004 issued pursuant to those certain Note Purchase
         Agreements, each dated December 11, 1998, among the Company, the Parent
         and each of the purchasers identified on Annex 1 thereto."

                  "NORTH NATOMAS PROPERTIES -- means the Real Estate Properties
         identified on Part 10.1 of Annex 3."

                  "PERMITTED EXTRAORDINARY DIVIDEND -- means the dividend by the
         Company to the Parent, on or about the Closing Date, in the amount of
         Thirty-Nine Million Five Hundred Thousand Dollar ($39,500,000)."

                  "QPAM EXEMPTION means Prohibited Transaction Class Exemption
         84-14 issued by the United States Department of Labor."

         (c)      DELETION OF EXISTING DEFINITIONS -- Section 10.1 is hereby
amended by deleting the definition of "Cumulative Contributions" .


                                  Exhibit A-19
<PAGE>   26
                                    EXHIBIT B

                              ALLEGHANY CORPORATION
                             CERTIFICATE OF OFFICERS


         The undersigned, ________________ and ________________, each hereby
certifies that we are the _______________ and ______________ of ALLEGHANY
CORPORATION, a Delaware corporation (the "PARENT"), and that, as such, we have
access to its corporate records and are familiar with the matters herein
certified, and we are authorized to execute and deliver this Certificate in the
name and on behalf of the Parent, and that:

         1. This certificate is being delivered pursuant to (a) Section 3.3(a)
of the separate Note Purchase Agreements (collectively, the "NOTE PURCHASE
AGREEMENT"), each dated as of December 11, 1998, among Alleghany Properties,
Inc. (the "COMPANY"), the Parent and each of the purchasers listed in Annex 1
thereto (the "PURCHASERS") and (b) Section 3.2(a) of the Third Amendment to Note
Purchase Agreement (the "THIRD AMENDMENT") dated as of December 11, 1998 among
the Company, the Parent and the holders of the 1995 Notes (the "1995
NOTEHOLDERS"). The terms used in this Certificate and not defined herein have
the respective meanings specified in the Note Purchase Agreement.

         2. The warranties and representations contained in Section 2 of the
Note Purchase Agreement and Section 4 of the Third Amendment are in all material
respects true on the date hereof with the same effect as though made on and as
of the date hereof.

         3. The Parent has performed and complied with all agreements and
conditions contained in the Note Purchase Agreement and the Third Amendment that
are required to be performed or complied with by the Parent prior to or on the
date hereof, and such performance and compliance remains in effect on the date
hereof.

         4. _____________, from _____________ to the date hereof, inclusive, has
been and is the duly elected, qualified and acting Secretary of the Parent, and
the signature appearing on the Certificate of Secretary dated the date hereof
and delivered to each Purchaser and the 1995 Noteholders contemporaneously
herewith is his/her genuine signature.
<PAGE>   27
         IN WITNESS WHEREOF, we have executed this Certificate in the name and
on behalf of the Parent on December __, 1998.

                                           ALLEGHANY CORPORATION



                                           By:__________________________________
                                                 Name:__________________________




                                           By:__________________________________
                                                 Name:__________________________


                                       2
<PAGE>   28
                                    Exhibit B

                           ALLEGHANY PROPERTIES, INC.
                             CERTIFICATE OF OFFICER

         The undersigned, ________________ and ________________, each hereby
certifies that we are the _______________ and ______________ of ALLEGHANY
PROPERTIES, INC., a Delaware corporation (the "COMPANY"), and that, as such, we
have access to its corporate records and are familiar with the matters herein
certified, and we are authorized to execute and deliver this Certificate in the
name and on behalf of the Company, and that:

         1. This certificate is being delivered pursuant to (a) Section 3.3(b)
of the separate Note Purchase Agreements (collectively, the "NOTE PURCHASE
AGREEMENT"), each dated as of December 11, 1998, among the Company, Alleghany
Corporation (the "PARENT") and each of the purchasers listed in Annex 1 thereto
(the "PURCHASERS") and (b) Section 3.2(a) of the Third Amendment to Note
Purchase Agreement (the "THIRD AMENDMENT") dated as of December 11, 1998 among
the Company, the Parent and the holders of the 1995 Notes (the "1995
NOTEHOLDERS"). The terms used in this Certificate and not defined herein have
the respective meanings specified in the Note Purchase Agreement.

         2. The warranties and representations contained in Section 2 of the
Note Purchase Agreement and Section 4 of the Third Amendment are in all material
respects true on the date hereof with the same effect as though made on and as
of the date hereof.

         3. The Company has performed and complied with all agreements and
conditions contained in the Note Purchase Agreement and the Third Amendment that
are required to be performed or complied with by the Company prior to or on the
date hereof, and such performance and compliance remains in effect on the date
hereof.

         4. _________________, from ______________ to the date hereof,
inclusive, has been and is the duly elected, qualified and acting Secretary of
the Company, and the signature appearing on the Certificate of Secretary dated
the date hereof and delivered to the Purchasers and the 1995 Noteholders
contemporaneously herewith is his genuine signature.

         IN WITNESS WHEREOF, we have executed this Certificate in the name and
on behalf of the Company on December __, 1998.

                                           ALLEGHANY PROPERTIES, INC.



                                           By:__________________________________
                                                   Name:________________________



                                           By:__________________________________
                                                   Name:________________________
<PAGE>   29
                                    Exhibit C

                              ALLEGHANY CORPORATION
                            CERTIFICATE OF SECRETARY

         I, ___________________, hereby certify that I am the duly elected,
qualified and acting Secretary of ALLEGHANY CORPORATION (the "PARENT"), a
Delaware corporation, and that, as such, I have access to its corporate records
and am familiar with the matters herein certified, and I am authorized to
execute and deliver this Certificate in the name and on behalf of the Parent,
and that:

         1. This Certificate is being delivered pursuant to (a) Section 3.3(c)
of the separate Note Purchase Agreements (collectively, the "NOTE PURCHASE
AGREEMENT"), each dated as of December 11, 1998, among Alleghany Properties,
Inc. (the "COMPANY"), the Parent and each of the purchasers listed on Annex 1
thereto (collectively, the "PURCHASERS") and (b) Section 3.2(b) of the Third
Amendment to Note Purchase Agreement (the "THIRD AMENDMENT") dated as of
December 11, 1998 among the Company, the Parent and the holders of the 1995
Notes. The capitalized terms used in this Certificate and not defined herein
have the respective meanings specified in the Note Purchase Agreement.

         2. Attached hereto as Attachment A is a true and correct copy of
resolutions adopted by the Executive Committee of the Board of Directors of the
Parent on ____________, and such resolutions set forth in Attachment A hereto
were duly adopted by said Executive Committee and are in full force and effect
on and as of the date hereof, not having been amended, altered or repealed, and
such resolutions are filed with the records of the Executive Committee.

         3. The Note Purchase Agreement and the Third Amendment were executed
and delivered by the Parent pursuant to and in accordance with the resolutions
set forth in Attachment A hereto and said document as executed is substantially
in the form approved by the Executive Committee of the Parent as aforementioned.

         4. Attached hereto as Attachment B is a true, correct and complete copy
of the bylaws of the Parent as in full force and effect on and as of the date
hereof, which bylaws have been in full effect in said form at all times from
_______________ to the date hereof, inclusive, without modification or amendment
in any respect.

         5. Each of the persons named on Attachment C is and has been a duly
elected, qualified and acting officer of the Parent holding the office or
offices set forth below opposite his or her name on Attachment C from
________________ to the date hereof, inclusive.

         6. The signature appearing opposite the name of each such person set
forth on Attachment C is his or her genuine signature.

         7. Attached hereto as Attachment D is a long-form good standing
certificate in respect of the Parent from the State of Delaware which
certificate

                  (a) lists all corporate documents filed with the Secretary of
         State of Delaware on or prior to the date hereof in respect of the
         Parent,

                  (b) has attached copies of such documents,
<PAGE>   30
                  (c) bears the certification of the Secretary of State of
         Delaware, and

                  (d) is true, correct and complete.

         8. There have been no amendments or supplements to or restatements of
the Certificate of Incorporation of the Parent since ______________.


         IN WITNESS WHEREOF, I have hereunto set my hand on December __, 1998.


                                           ALLEGHANY CORPORATION





                                                Secretary
                                           _____________________________________


                                       2
<PAGE>   31
                                  ATTACHMENT A

                            Resolutions of the Parent

[To be supplied by the Parent]


                                       3
<PAGE>   32
                                  ATTACHMENT B

                              Bylaws of the Parent

[To be supplied by the Parent]


                                       4
<PAGE>   33
                                  ATTACHMENT C

                   Authorized Officers and Specimen Signatures

[To be supplied by the Parent]


                                       5
<PAGE>   34
                                  ATTACHMENT D

                       Long Form Good Standing Certificate

[To be supplied by the Parent]


                                       6
<PAGE>   35
                                   Exhibit C

                           ALLEGHANY PROPERTIES, INC.
                            CERTIFICATE OF SECRETARY

     I, __________, hereby certify that I am the duly elected, qualified and 
acting Secretary of ALLEGHANY PROPERTIES, INC. (the "COMPANY"), a Delaware
corporation, and that, as such, I have access to its corporate records and am
familiar with the matters herein certified, and I am authorized to execute and
deliver this Certificate in the name and on behalf of the Company, and that:

     1.   This Certificate is being delivered pursuant to (a) Section 3.3(d) of 
the separate Note Purchase Agreements (collectively, the "NOTE PURCHASE 
AGREEMENT"), each dated as of December 11, 1998, among the Company, Alleghany 
Corporation (the "PARENT") and each of the purchasers listed on Annex 1 thereto 
(collectively, the "PURCHASERS") and (b) Section 3.2(b) of the Third Amendment 
to Note Purchase Agreement (the "THIRD AMENDMENT") dated as of December 11, 
1998 among the Company, the Parent and the holders of the 1995 Notes. The 
capitalized terms used in this Certificate and not defined herein have the 
respective meanings specified in the Note Purchase Agreement.

     2.   Attached hereto as Attachment A is a true and correct copy of the 
resolutions, and the preamble thereto, of the Board of Directors of the Company 
adopting resolutions on ____________, and such resolutions were duly adopted by 
said Board of Directors and are in full force and effect on and as of the date 
hereof, not having been amended, altered or repealed, and such resolutions are 
filed with the records of the Board of Directors.

     3.   The documents listed below were executed and delivered by the Company 
pursuant to and in accordance with the resolutions set forth in Attachment A 
hereto and said documents as executed are substantially in the form approved by 
the Board of Directors of the Company as aforementioned:

          (a)  the Note Purchase Agreement providing for, among other things, 
     the issuance and sale by the Company and the purchase by the Purchasers of 
     the Company's 6.83% Senior Notes due December 11, 2004 (the "Notes");

          (b)  the Notes; and

          (c)  the Third Amendment.

     4.   Attached hereto as Attachment B is a true, correct and complete copy 
of the bylaws of the Company as in full force and effect on and as of the date 
hereof, which bylaws have been in full effect in said form at all times from 
__________ to the date hereof, inclusive, without modification or amendment in 
any respect.

     5.   Each of the persons named on Attachment C is and has been a duly 
elected, qualified and acting officer of the Company holding the office or 
offices set forth below his or her name on Attachment C from _____________ to 
the date hereof, inclusive.

     6.   The signature appearing opposite the name of each such person set 
forth on Attachment C is his or her genuine signature.          
<PAGE>   36
   7.   Attached hereto as Attachment D is a long-form good standing certificate
  in respect of the Company from the State of Delaware which certificate

        (a)    lists all corporate documents filed with the Secretary of State 
   of Delaware on or prior to the date hereof in respect of the Company,

        (b)    has attached copies of such documents,

        (c)    bears the certification of the Secretary of State of
               Delaware, and

        (d)    is true, correct and complete.

  1.   There have been no amendments or supplements to or restatements of the 
Certificate of Incorporation of the Company since _______________.


  IN WITNESS WHEREOF, I have hereunto set my hand on December __, 1998.


                                   ALLEGHANY PROPERTIES, INC.



                                          Secretary


                                   ------------------------------------
<PAGE>   37


                                        
                                  ATTACHMENT A
                                        
                           Resolutions of the Company


[To be supplied by the Company]




                                       3
<PAGE>   38


                                        
                                  ATTACHMENT B
                                        
                             Bylaws of the Company


[To be supplied by the Company]













                                       4
<PAGE>   39


                                        
                                  ATTACHMENT C
                                        
                  Authorized Officers and Specimen Signatures

[To be supplied by the Company]












                                       5
<PAGE>   40


                                        
                                  ATTACHMENT D
                                        
                      Long Form Good Standing Certificate


[To be supplied by the Company]











                                       6

<PAGE>   1
                                                                Exhibit 10.18(a)



                              ALLEGHANY CORPORATION

                           ALLEGHANY PROPERTIES, INC.



                             NOTE PURCHASE AGREEMENT



                          DATED AS OF DECEMBER 11, 1998



              $40,000,000 6.83% SENIOR NOTES DUE DECEMBER 11, 2004
<PAGE>   2
<TABLE>
<CAPTION>
                                TABLE OF CONTENTS
                                                                                                                     PAGE
<S>                                                                                                                  <C>
1.       PURCHASE AND SALE OF NOTES...............................................................................      1
         1.1      Issue of Notes..................................................................................      1
         1.2      The Closing.....................................................................................      1
         1.3      Purchase for Investment.........................................................................      2
         1.4      Failure To Deliver, Failure of Conditions.......................................................      4
         1.5      Expenses........................................................................................      4

2.       WARRANTIES AND REPRESENTATIONS...........................................................................      5
         2.1      Nature of Business..............................................................................      5
         2.2      Financial Statements; Indebtedness; Material Adverse Change.....................................      5
         2.3      Subsidiaries and Affiliates.....................................................................      6
         2.4      Pending Litigation..............................................................................      6
         2.5      Title to Properties.............................................................................      6
         2.6      Patents, Trademarks, Licenses, etc..............................................................      7
         2.7      Taxes...........................................................................................      7
         2.8      Full Disclosure.................................................................................      7
         2.9      Corporate Organization and Authority............................................................      8
         2.10     Restrictions on Parent, Company and SPHI........................................................      8
         2.11     Compliance with Law.............................................................................      9
         2.12     Pension Plans...................................................................................      9
         2.13     Certain Laws....................................................................................     10
         2.14     Environmental Compliance........................................................................     10
         2.15     Sale is Legal and Authorized; Obligations are Enforceable.......................................     11
         2.16     Governmental Consent............................................................................     12
         2.17     Private Offering................................................................................     12
         2.18     No Defaults.....................................................................................     12
         2.19     Use of Proceeds.................................................................................     13
         2.20     Year 2000 Compliant.............................................................................     13

3.       CLOSING CONDITIONS.......................................................................................     13
         3.1      Opinions of Counsel.............................................................................     13
         3.2      Warranties and Representations True.............................................................     14
         3.3      Officers' Certificates..........................................................................     14
         3.4      Legality........................................................................................     14
         3.5      Private Placement Number........................................................................     14
         3.6      Expenses........................................................................................     15
         3.7      Other Purchasers................................................................................     15
         3.8      Proceedings Satisfactory........................................................................     15
         3.9      Compliance with this Agreement..................................................................     15

4.       PURCHASERS' SPECIAL RIGHTS...............................................................................     15
         4.1      Direct Payment..................................................................................     15
         4.2      Delivery Expenses...............................................................................     16
         4.3      Issuance Taxes..................................................................................     16
</TABLE>


                                       i
<PAGE>   3
<TABLE>
<S>                                                                                                                    <C>
5.       PREPAYMENTS..............................................................................................     16
         5.1      Required Prepayments............................................................................     16
         5.2      Optional Prepayments............................................................................     16
         5.3      Prepayment upon a Downgrade Event...............................................................     17
         5.4      Partial Prepayment Pro Rata.....................................................................     18
         5.5      Notation of Notes on Prepayment.................................................................     19
         5.6      No Other Optional Prepayments...................................................................     19

6.       REGISTRATION; EXCHANGE; SUBSTITUTION OF NOTES............................................................     19
         6.1      Registration of Notes...........................................................................     19
         6.2      Exchange of Notes...............................................................................     19
         6.3      Replacement of Notes............................................................................     20

7.       COVENANTS................................................................................................     20
         7.1      Payment of Taxes and Claims.....................................................................     20
         7.2      Maintenance of Properties; Corporate Existence; etc.............................................     21
         7.3      Payment of Notes and Maintenance of Office......................................................     22
         7.4      Pension Plans...................................................................................     22
         7.5      Line of Business................................................................................     23
         7.6      Indebtedness....................................................................................     23
         7.7      Restricted Investments and Restricted Payments..................................................     24
         7.8      Operating Expenses..............................................................................     25
         7.9      Merger and Consolidation........................................................................     25
         7.10     Transfers of Property...........................................................................     26
         7.11     Purchase Obligation of the Parent...............................................................     27
         7.12     Transactions with Affiliates....................................................................     27
         7.13     Liens...........................................................................................     27
         7.14     Private Offering................................................................................     29
         7.15     Defeasance......................................................................................     29
         7.16     Performance of Agreement........................................................................     31

8.       INFORMATION AS TO PARENT AND COMPANY.....................................................................     31
         8.1      Financial and Business Information..............................................................     31
         8.2      Officers' Certificates..........................................................................     37
         8.3      Accountants' Certificates.......................................................................     38
         8.4      Inspection......................................................................................     38
         8.5      Confidential Information........................................................................     38

9.       EVENTS OF DEFAULT........................................................................................     40
         9.1      Nature of Events................................................................................     40
         9.2      Default Remedies................................................................................     42
         9.3      Annulment of Acceleration of Notes..............................................................     44

10.      INTERPRETATION OF THIS AGREEMENT.........................................................................     44
         10.1     Terms Defined...................................................................................     44
         10.2     GAAP............................................................................................     60
</TABLE>


                                       ii
<PAGE>   4
<TABLE>
<S>                                                                                                                    <C>
         10.3     Directly or Indirectly..........................................................................     60
         10.4     Section Headings and Table of Contents and Construction.........................................     60
         10.5     Governing Law...................................................................................     60

11.      MISCELLANEOUS............................................................................................     61
         11.1     Communications..................................................................................     61
         11.2     Reproduction of Documents.......................................................................     62
         11.3     Survival........................................................................................     62
         11.4     Successors and Assigns..........................................................................     62
         11.5     Amendment and Waiver............................................................................     63
         11.6     Payments, When Received.........................................................................     64
         11.7     Entire Agreement................................................................................     64
         11.8     Duplicate Originals, Execution in Counterpart...................................................     65
</TABLE>


Annex 1           --       Information as to Purchasers
Annex 2           --       Payment Instructions at Closing
Annex 3           --       Information as to Parent and Company
Annex 4           --       Designated Disposition Values and Reserves for
                           Disposition

Exhibit A         --       Form of 6.83% Senior Note Due December 11, 2004
Exhibit B1        --       Form of Company Counsel's Closing Opinion
Exhibit B2        --       Form of Special Counsel's Closing Opinion
Exhibit C1        --       Form of Officers' Certificate - Parent
Exhibit C2        --       Form of Officers' Certificate - Company
Exhibit D1        --       Form of Secretary's Certificate - Parent
Exhibit D2        --       Form of Secretary's Certificate - Company


                                      iii
<PAGE>   5
                              ALLEGHANY CORPORATION

                           ALLEGHANY PROPERTIES, INC.


                             NOTE PURCHASE AGREEMENT



              $40,000,000 6.83% SENIOR NOTES DUE DECEMBER 11, 2004

                                                   Dated as of December 11, 1998




UNITED OF OMAHA LIFE INSURANCE COMPANY
MUTUAL OF OMAHA PLAZA
OMAHA, NE  68175-1011

Ladies and Gentlemen:

         ALLEGHANY CORPORATION (together with its successors and assigns, the
"Parent"), a Delaware corporation, and ALLEGHANY PROPERTIES, INC. (together with
its successors and assigns, the "Company"), a Delaware corporation, hereby agree
with you as follows:

1.       PURCHASE AND SALE OF NOTES

         1.1      ISSUE OF NOTES.

         The Company will authorize the issuance of Forty Million Dollars
($40,000,000) in aggregate principal amount of its six and eighty-three
one-hundredths percent (6.83%) Senior Notes due December 11, 2004 (the "Notes").
Each Note shall be in the form of the Note set out in Exhibit A. The term "Note"
as used herein shall include each Note delivered pursuant to this Agreement and
each Note delivered in substitution or exchange for any such Note pursuant to
Section 6.2 or Section 6.3.

         1.2      THE CLOSING.

                  (a) PURCHASE AND SALE OF NOTES. The Company hereby agrees to
         sell to you and you hereby agree to purchase from the Company, in
         accordance with the provisions hereof, the aggregate principal amount
         of Notes set forth below your name on Annex 1 at one hundred percent
         (100%) of the principal amount thereof.

                  (b) THE CLOSING. The closing (the "Closing") of the Company's
         sale of Notes 


                                       1
<PAGE>   6
         shall be held on December 11, 1998 (the "Closing Date") at 10:00 a.m.,
         Hartford, Connecticut time, at the office of your special counsel, Hebb
         & Gitlin, a Professional Corporation (the "Special Counsel"), One State
         Street, Hartford, Connecticut 06103. At the Closing, the Company shall
         deliver to you one or more Notes (as set forth below your name on Annex
         1), in the denominations indicated on Annex 1, in the aggregate
         principal amount of your purchase, dated the Closing Date and payable
         to you or payable as indicated on Annex 1, against payment by federal
         funds wire transfer in immediately available funds of the purchase
         price thereof, as directed by the Company on Annex 2. All transactions
         contemplated by this Agreement will be considered to have taken place
         simultaneously on the Closing Date and no delivery of documents or
         payments will be considered to have been made until all such
         transactions are completed.

                  (c) OTHER PURCHASERS. Contemporaneously with the execution and
         delivery hereof, the Company is entering into a separate Note Purchase
         Agreement identical (except for the name and signature of the
         purchaser) hereto (this Agreement and such other separate Note Purchase
         Agreements being herein sometimes referred to collectively as the "Note
         Purchase Agreement") with each other purchaser (the "Other Purchasers")
         listed on Annex 1, providing for the sale to each Other Purchaser of
         Notes in the aggregate principal amount set forth below its name on
         such Annex. The sales of the Notes to you and to each Other Purchaser
         are to be separate sales.

         1.3      PURCHASE FOR INVESTMENT.

                  (a) PURCHASE FOR INVESTMENT. You represent to the Company that
         you are purchasing the Notes listed on Annex 1 below your name for your
         own account for investment and with no present intention of
         distributing the Notes or any part thereof, but without prejudice to
         your right at all times to

                           (i) sell or otherwise dispose of all or any part of
                  the Notes under a registration statement filed under the
                  Securities Act, or in a transaction exempt from the
                  registration requirements of the Securities Act, and

                           (ii) have control over the disposition of all of your
                  assets to the fullest extent required by any applicable
                  insurance law.

         It is understood that, in making the representations set out in Section
         2.15(a) and Section 2.16, the Company is relying, to the extent
         applicable, upon your representation in the immediately preceding
         sentence.

                  (b) ERISA. You represent that at least one of the following
         statements is an accurate representation as to each source of funds (a
         "Source") to be used by you to pay the purchase price of the Notes to
         be purchased by you hereunder.

                           (i) the Source is an "insurance company general
                  account" as defined in Department of Labor Prohibited
                  Transaction Exemption ("PTE") 95-60 (60 FR 


                                       2
<PAGE>   7
                  35925, July 12, 1995) and in respect thereof you represent
                  that there is no "employee benefit plan" (as defined in
                  section 3(3) of ERISA and section 4975(e)(1) of the IRC,
                  treating as a single plan all plans maintained by the same
                  employer or employee organization or affiliate thereof) with
                  respect to which the amount of the general account reserves
                  and liabilities of all contracts held by or on behalf of such
                  plan exceed ten percent (10%) of the total reserves and
                  liabilities of such general account (exclusive of separate
                  account liabilities) plus surplus, as set forth in the NAIC
                  Annual Statement filed with your state of domicile and that
                  such acquisition is eligible for and satisfies the other
                  requirements of such exemption; or

                           (ii) the Source is either (A) an insurance company
                  pooled separate account, within the meaning of PTE 90-1
                  (issued January 29, 1990), or (B) a bank collective investment
                  fund, within the meaning of the PTE 1-38 (issued July 12,
                  1991) and, except as you have disclosed to the Company in
                  writing pursuant to this paragraph (ii), no employee benefit
                  plan or group of plans maintained by the same employer or
                  employee organization beneficially owns more than 10% of all
                  assets allocated to such pooled separate account or collective
                  investment fund; or

                           (iii) the Source constitutes assets of an "investment
                  fund" (within the meaning of Part V of the QPAM Exemption)
                  managed by a "qualified professional asset manager" or "QPAM"
                  (within the meaning of Part V of the QPAM Exemption), no
                  employee benefit plan's assets that are included in such
                  investment fund, when combined with the assets of all other
                  employee benefit plans established or maintained by the same
                  employer or by an affiliate (within the meaning of Section
                  V(c)(1) of the QPAM Exemption) of such employer or by the same
                  employee organization and managed by such QPAM, exceed 20% of
                  the total client assets managed by such QPAM, the conditions
                  of Part I(c) and (g) of the QPAM Exemption are satisfied,
                  neither the QPAM nor a person controlling or controlled by the
                  QPAM (applying the definition of "control" in Section V(e) of
                  the QPAM Exemption) owns a 5% or more interest in the Company
                  and (A) the identity of such QPAM and (B) the names of all
                  employee benefit plans whose assets are included in such
                  investment fund have been disclosed to the Company in writing
                  pursuant to this paragraph (iii); or

                           (iv) the Source is a governmental plan; or

                           (v) the Source is one or more employee benefit plans,
                  or a separate account or trust fund comprised of one or more
                  employee benefit plans, each of which has been identified to
                  the Company in writing pursuant to this paragraph (v); or

                           (vi) the Source is an insurance company separate
                  account maintained solely in connection with fixed contractual
                  obligations of the insurance company under which the amounts
                  payable, or credited, to any employee benefit plan (or its
                  related trust) and to any participant or beneficiary of such
                  plan (including any


                                       3
<PAGE>   8
                  annuitant) are not affected in any manner by the investment
                  performance of the separate account; or

                           (vii) the Source does not include assets of any
                  employee benefit plan, other than a plan exempt from the
                  coverage of ERISA.

         As used in this Section 1.3(b), the terms "EMPLOYEE BENEFIT PLAN",
         "GOVERNMENTAL PLAN" and "SEPARATE ACCOUNT" shall have the respective
         meanings assigned to such terms in Section 3 of ERISA.

         1.4      FAILURE TO DELIVER, FAILURE OF CONDITIONS.

         If at the Closing the Company fails to tender to you the Notes to be
purchased by you thereat, or if the conditions specified in Section 0 to be
fulfilled at the Closing have not been fulfilled, you may thereupon elect to be
relieved of all further obligations hereunder. Nothing in this Section 0 shall
operate to relieve the Parent or the Company from any of its obligations
hereunder or to waive any of your rights against the Parent or the Company.

         1.5      EXPENSES.

                  (a) GENERALLY. Whether or not the Notes are sold, the Company
         shall promptly (and in any event within thirty (30) days of receiving
         any statement or invoice therefor) pay all reasonable fees, expenses
         and costs relating hereto, including but not limited to:

                           (i) the cost of reproducing this Agreement and the
                  Notes;

                           (ii) the reasonable fees and disbursements of the
                  Special Counsel;

                           (iii) the cost of delivering to your home office or
                  custodian bank, insured to your satisfaction, the Notes
                  purchased by you at the Closing;

                           (iv) the reasonable fees, expenses and costs incurred
                  complying with each of the conditions to closing set forth in
                  Section 0; and

                           (v) the expenses relating to the consideration,
                  negotiation, preparation or execution of any amendments,
                  waivers or consents pursuant to the provisions hereof
                  (including, without limitation, the reasonable allocated cost
                  of your counsel who are your employees or your affiliates'
                  employees), whether or not any such amendments, waivers or
                  consents are executed.

                  (b) COUNSEL. Without limiting the generality of the foregoing,
         it is agreed and understood that the Company will pay, at the Closing,
         the statement for reasonable fees and disbursements of the Special
         Counsel presented at the Closing and the Company will also pay upon
         receipt of any statement thereof, each additional statement for
         reasonable fees and disbursements of the Special Counsel rendered after
         the Closing in connection 


                                       4
<PAGE>   9
         with the issuance of the Notes or of your other counsel rendered after
         the Closing in connection with the matters referred to in Section
         0(a)(v).

                  (c) SURVIVAL. The obligations of the Company under this
         Section 0 shall survive the payment or prepayment of the Notes and the
         termination hereof.

2.       WARRANTIES AND REPRESENTATIONS

         To induce you to enter into this Agreement and to purchase the Notes
listed on Annex 1 below your name, each of the Parent and the Company warrants
and represents, as of the Closing Date, as follows:

         2.1      NATURE OF BUSINESS.

         The Placement Memorandum (together with all exhibits and annexes
thereto, the "Placement Memorandum"), dated October 1998 and prepared by
NationsBanc Montgomery Securities LLC (a copy of which previously has been
delivered to you), correctly describes the general nature of the business and
principal Properties of the Parent, the Company and the Subsidiaries as of the
Closing Date, other than the sale, paydown or repayment of certain of the Real
Estate Assets as described in Part 2.1 of Annex 3. The Company received net
proceeds from such sale, paydown or repayment of Real Estate Assets in the
aggregate amount of approximately Five Hundred Seventy-One Thousand Dollars
($571,000), all of which was retained by the Company in cash or Permitted
Investments or used for Operating Expenses.

         2.2      FINANCIAL STATEMENTS; INDEBTEDNESS; MATERIAL ADVERSE CHANGE.

                  (a) FINANCIAL STATEMENTS. The following financial statements
         (copies of which have been delivered to you):

                           (i) the consolidated balance sheets of the Parent and
                  its consolidated subsidiaries as of December 31 in the years
                  1997, 1996 and 1995, and the related consolidated statements
                  of earnings, stockholders' equity and cash flows for the
                  fiscal years ended on such dates, all accompanied by opinions
                  thereon by KPMG Peat Marwick, independent certified public
                  accountants, and

                           (ii) the unaudited consolidated balance sheet of the
                  Parent and its consolidated subsidiaries as of June 30, 1998,
                  and the related unaudited consolidated statements of earnings
                  and cash flows for the six (6) months ended on such date,

         have been prepared in accordance with GAAP consistently applied, as at
         the end of, and for, each such period (with respect to the financial
         statements referenced in Section 2.2(a)(ii) above, subject to normal
         year-end adjustments) and present fairly, in all material respects, the
         consolidated financial position of the Parent and its consolidated
         subsidiaries as of such dates and the results of their operations and
         cash flows for such periods.


                                       5
<PAGE>   10
                  (b) INDEBTEDNESS. Part 2.2(b) of Annex 3 correctly lists all
         outstanding Indebtedness of the Parent, the Company and SPHI as of the
         Closing Date, and provides the following information with respect to
         each item of such Indebtedness:

                           (i) the type thereof,

                           (ii) the holder thereof,

                           (iii) the outstanding amount,

                           (iv) the current portion, if any, and

                           (v) the collateral securing such Indebtedness, if
                  any.

                  (c) MATERIAL ADVERSE CHANGE. Since December 31, 1997, other
         than the spin-off of Chicago Title Corporation, excluding Alleghany
         Asset Management, Inc., there has been no material change in the
         business, profits, Properties or condition (financial or otherwise) of
         the Parent, the Company or any of the Subsidiaries except changes in
         the ordinary course of business that, in the aggregate, have not had a
         Material Adverse Effect.

         2.3      SUBSIDIARIES AND AFFILIATES.

         Part 2.3 of Annex 3 sets forth:

                  (a) the name of each of the Significant Subsidiaries, its
         jurisdiction of incorporation and the percentage of its Voting Stock
         owned by the Parent and each other Subsidiary, and

                  (b) the name of each of the Affiliates that are corporations,
         partnerships or joint ventures (other than Subsidiaries) and the nature
         of the affiliation.

         Each of the Parent and the Company has good and marketable title to all
of the shares it purports to own of the stock of each Significant Subsidiary,
free and clear in each case of any Lien except as described in Part 2.3 of Annex
3, and all such shares have been duly issued and are fully paid and
nonassessable. To the best of the Parent's knowledge, each of the Parent and the
Subsidiaries has good and marketable title to all of the shares it purports to
own of the stock of each other Subsidiary and all such shares have been duly
issued and are fully paid and nonassessable.


                                       6
<PAGE>   11
         2.4      PENDING LITIGATION.

         There are no proceedings, actions or investigations pending or, to the
knowledge of the Parent or the Company, threatened against or affecting the
Parent, the Company or any Subsidiary in any court or before any Governmental
Authority or arbitration board or tribunal that, in the aggregate, could
reasonably be expected to have a Material Adverse Effect. None of the Parent,
the Company or any Subsidiary is in default with respect to any judgment, order,
writ, injunction, or decree of any court, Governmental Authority or arbitration
board or tribunal that, in the aggregate, could reasonably be expected to have a
Material Adverse Effect.

         2.5      TITLE TO PROPERTIES.

         Each of the Parent, the Company and the Subsidiaries has good and
marketable title, of a quality commensurate with prudent standards of business
practice, to all of the Property reflected in the most recent audited statement
of financial condition referred to in Section 0(a) (except Chicago Title
Corporation which was disposed of by the Parent in a spin-off and such other
Properties which were sold or otherwise disposed of in the ordinary course of
business), free from Liens not otherwise permitted by Section 7.13. Each Real
Estate Property owned of record and beneficially by the Company (and not held
through or on behalf of a joint venture or other contracting parties) is covered
by an owners title insurance policy insuring the Company's title in fee simple
to such Real Estate Property in substantially the amount of the Designated
Disposition Value of such Real Estate Property.

         2.6      PATENTS, TRADEMARKS, LICENSES, ETC.

         Each of the Parent, the Company and the Subsidiaries owns, possesses or
has the right to use all of the patents, trademarks, service marks, trade names,
copyrights, licenses, and rights with respect thereto, necessary for the present
and currently planned future conduct of its business, without any known conflict
with the rights of others, except where the failure to own, possess or have such
right, in the aggregate, could not reasonably be expected to have a Material
Adverse Effect.


                                       7
<PAGE>   12
         2.7      TAXES.

                  (a) RETURNS FILED; TAXES PAID. All federal and state income
         tax returns and all other material tax returns required to be filed by
         each of the Parent and the Company and all federal and material state
         income tax returns and all other material tax returns required to be
         filed by each Subsidiary in any jurisdiction have in fact been filed on
         a timely basis (giving effect to any timely extensions), and all taxes,
         assessments, fees and other governmental charges in respect of such
         returns upon each of the Parent, the Company and such Subsidiary, and
         upon any of their respective Properties, income or franchises, that are
         due and payable have been paid, except for any taxes, proposed
         assessments, fees or charges (i) the amount of which is not
         individually or in the aggregate material in relation to the business,
         profits, Properties or condition (financial or otherwise) of the
         Parent, the Company and the Subsidiaries, taken as a whole, or (ii)
         that are being contested in good faith and by appropriate proceedings
         and for which adequate reserves have been established and exist.
         Neither the Parent nor the Company knows of any other proposed
         additional tax assessment against it or any such Person. All
         liabilities of the Parent, the Company and such Subsidiaries with
         respect to federal income taxes have been finally determined for the
         fiscal years ending prior to December 31, 1992.

                  (b) BOOK PROVISIONS ADEQUATE. The amount of the liability for
         taxes reflected in the consolidated balance sheet of the Parent and its
         consolidated subsidiaries as of June 30, 1998 referred to in Section
         0(a) is an adequate provision for taxes (including, without limitation,
         any payment due pursuant to any tax sharing agreement) as are or may
         become payable by any one or more of the Parent and its consolidated
         subsidiaries in respect of all tax periods ending on or prior to such
         date.

         2.8      FULL DISCLOSURE.

         The financial statements referred to in Section 0(a) do not, nor does
this Agreement, the Placement Memorandum or any written statement furnished by
or on behalf of the Parent or the Company to you in connection with the
negotiation of the sale of the Notes, contain any untrue statement of a material
fact or omit a material fact necessary to make the statements contained therein
or herein not misleading. There is no fact known to the Parent or the Company
that the Parent or the Company has not disclosed to you in writing that has had
or, so far as the Parent or the Company can now reasonably foresee, will have a
Material Adverse Effect.

         2.9      CORPORATE ORGANIZATION AND AUTHORITY.

         Each of the Parent, the Company and the Significant Subsidiaries:

                  (a) is a corporation duly incorporated, validly existing and
         in good standing under the laws of its jurisdiction of incorporation,

                  (b) has all legal and corporate power and authority to own and
         operate its 


                                       8
<PAGE>   13
         Properties and to carry on its business as now conducted and as
         presently proposed to be conducted,

                  (c) has all licenses, certificates, permits, franchises and
         other governmental authorizations necessary to own and operate its
         Properties and to carry on its business as now conducted and as
         presently proposed to be conducted, except where the failure to have
         such licenses, certificates and permits, in the aggregate, could not
         reasonably be expected to have a Material Adverse Effect, and

                  (d) has duly qualified or has been duly licensed, and is
         authorized to do business and is in good standing, as a foreign
         corporation, in each state where the failure to be so qualified or
         licensed and authorized and in good standing could reasonably be
         expected to have a Material Adverse Effect.

         2.10     RESTRICTIONS ON PARENT, COMPANY AND SPHI.

         None of the Parent, the Company or SPHI:

                  (a) is a party to any contract or agreement, or subject to any
         charter or other corporate restriction that could reasonably be
         expected to have a Material Adverse Effect,

                  (b) is a party to any contract or agreement that restricts the
         right or ability of such corporation to incur Indebtedness, other than
         this Agreement and the agreements listed in Part 2.10(b) of Annex 3,
         the terms of none of which is violated by the issuance and sale of the
         Notes or the execution and delivery of, or compliance with, this
         Agreement by the Parent and the Company, and true, correct and complete
         copies of each of which have been provided to you, and

                  (c) has agreed or consented to cause or permit in the future
         (upon the happening of a contingency or otherwise) any of the Property
         of the Company or SPHI, whether now owned or hereafter acquired, to be
         subject to a Lien not permitted by Section 7.13.


                                       9
<PAGE>   14
         2.11     COMPLIANCE WITH LAW.

         None of the Parent, the Company or any Subsidiary is in violation of
any law, ordinance, governmental rule or regulation to which it is subject,
which violations, in the aggregate, could reasonably be expected to have a
Material Adverse Effect.

         2.12     PENSION PLANS.

                  (a)      DISCLOSURE.

                           (i) MATERIAL EVENTS. There are no events or
                  circumstances under ERISA or the IRC relating to any Pension
                  Plan or Multiemployer Plan that currently exist that the
                  Parent or the Company has not disclosed to you in writing,
                  except for events and circumstances that, in the aggregate,
                  could not reasonably be expected to have a Material Adverse
                  Effect.

                           (ii) PLANS AND ERISA AFFILIATES. There are no Pension
                  Plans maintained by any one or more of the Parent, the Company
                  or any ERISA Affiliate whose assets, in whole or in part, are
                  currently managed or invested by any one or more of the
                  Purchasers.

                  (b) PROHIBITED TRANSACTIONS. Neither the execution of this
         Agreement nor the purchase of the Notes by you will constitute a
         "prohibited transaction" (as such term is defined in section 406 of
         ERISA or section 4975 of the IRC). The representation by the Parent and
         the Company in the immediately preceding sentence is made in reliance
         upon and subject to the accuracy of the representations in Section
         1.3(b) as to the source of funds used by you.

                  (c) COMPLIANCE WITH ERISA. The Parent, the Company and the
         ERISA Affiliates and each Pension Plan are in compliance with ERISA,
         except for such failures to comply that in the aggregate for all such
         failures could not reasonably be expected to have a Material Adverse
         Effect.

                  (d) PENSION PLAN FUNDING STATUS AND LIABILITIES.

                           (i) FUNDING STATUS. The present value of all
                  benefits, as reflected in the most recent actuarial valuation
                  report issued in accordance with Section 7.4, vested under
                  each Pension Plan does not exceed, by more than Five Hundred
                  Thousand Dollars ($500,000), the value of the assets of such
                  Pension Plan allocable to such vested benefits, as reflected
                  in such report.

                           (ii) CLOSING DATE LIABILITIES. All contributions to
                  all Pension Plans arising under the terms of such Pension
                  Plans that are due and payable by the plan sponsor as of the
                  Closing Date have been paid. Neither the Parent, the Company
                  nor any ERISA Affiliate has incurred any liability pursuant to
                  Title I or Title IV of 


                                       10
<PAGE>   15
                  ERISA or the penalty or excise tax or security provisions of
                  the IRC relating to "employee benefit plans" (as defined in
                  section 3 of ERISA), and no event, transaction, or condition
                  has occurred or exists that could result in the imposition of
                  any Lien on any of the Properties of the Parent, the Company
                  or any ERISA Affiliate, in either case pursuant to Title I or
                  Title IV of ERISA or pursuant to such penalty, excise tax or
                  security provisions of the IRC, except for such liabilities
                  and Liens that, in the aggregate for all such liabilities and
                  Liens, could not reasonably be expected to have a Material
                  Adverse Effect.

                           (iii) PBGC. No circumstance exists that constitutes
                  grounds under section 4042 of ERISA entitling the PBGC to
                  institute proceedings to terminate, or appoint a trustee to
                  administer, any Pension Plan or trust created thereunder, nor
                  has the PBGC instituted any such proceeding.

                  (e) REPORTABLE EVENTS. No Pension Plan or trust created
         thereunder has been terminated, and there have been no "reportable
         events" (as such term is defined in section 4043 of ERISA) with respect
         to any Pension Plan or trust created thereunder, which reportable event
         or events will or could result in the termination of such Pension Plan
         and give rise to a material liability of the Parent, the Company or any
         ERISA Affiliate in respect thereof.

                  (f) MULTIEMPLOYER PLANS. Neither the Parent, the Company nor
         any ERISA Affiliate has incurred or presently expects to incur any
         withdrawal liability with respect to any Multiemployer Plan.

                  (g) MULTIPLE EMPLOYER PENSION PLANS. Neither the Parent, the
         Company nor any ERISA Affiliate has ever been a "contributing sponsor"
         (as such term is defined in section 4001 of ERISA) in any Multiple
         Employer Pension Plan.

                  (h) FOREIGN PENSION PLANS. Neither the Parent nor the Company
         has any Foreign Pension Plans.

         2.13     CERTAIN LAWS.

                  (a) INVESTMENT COMPANY ACT. None of the Parent, the Company or
         SPHI is, or is directly or indirectly controlled by, or acting on
         behalf of any Person which is, an "investment company" within the
         meaning of the Investment Company Act of 1940, as amended.

                  (b) HOLDING COMPANY STATUS. None of the Parent, the Company or
         SPHI is a "holding company" or an "affiliate" of a "holding company,"
         or a "subsidiary company" of a "holding company," or a "public utility"
         within the meaning of the Public Utility Holding Company Act of 1935,
         as amended.


                                       11
<PAGE>   16
          2.14     ENVIRONMENTAL COMPLIANCE.

                  (a) COMPLIANCE. Each of the Parent, the Company and the
         Subsidiaries is in compliance with all Environmental Protection Laws in
         effect in each jurisdiction where it is presently doing business, and
         with which the failure so to comply, in the aggregate for all such
         failures, could reasonably be expected to have a Material Adverse
         Effect.

                  (b) LIABILITY. None of the Parent, the Company or any of the
         Subsidiaries is subject to any liability under any Environmental
         Protection Law that, in the aggregate for all such liabilities, could
         reasonably be expected to have a Material Adverse Effect.

                  (c) NOTICES. None of the Parent, the Company or any Subsidiary
         has received any

                           (i) notice from any Governmental Authority by which
                  any of its present or previously-owned or leased Properties
                  has been designated, listed, or identified in any manner by
                  any Governmental Authority charged with administering or
                  enforcing any Environmental Protection Law as a Hazardous
                  Substance disposal or removal site, "Super Fund" clean-up
                  site, or candidate for removal or closure pursuant to any
                  Environmental Protection Law,

                           (ii) notice of any Lien arising under or in
                  connection with any Environmental Protection Law that has
                  attached to any revenues of, or to, any of its owned or leased
                  Properties, or

                           (iii) summons, citation, notice, directive, letter,
                  or other communication, written or oral, from any Governmental
                  Authority concerning any intentional or unintentional action
                  or omission by the Parent, the Company or such Subsidiary in
                  connection with its ownership or leasing of any Property
                  resulting in the releasing, spilling, leaking, pumping,
                  pouring, emitting, emptying, dumping, or otherwise disposing
                  of any Hazardous Substance into the environment resulting in
                  any material violation of any Environmental Protection Law,

         where the effect of which, in the aggregate for all such notices and
         communications, could reasonably be expected to have a Material Adverse
         Effect.

         2.15     SALE IS LEGAL AND AUTHORIZED; OBLIGATIONS ARE ENFORCEABLE.

                  (a) SALE IS LEGAL AND AUTHORIZED. Each of the issuance, sale
         and delivery of the Notes by the Company, the execution and delivery
         hereof by the Parent and the Company and compliance by the Parent and
         the Company with all of the provisions hereof and of the Notes:

                           (i) is within the corporate powers of the Parent and
                  the Company; and


                                       12
<PAGE>   17
                           (ii) is legal and does not conflict with, result in
                  any breach in any of the provisions of, constitute a default
                  under, or result in the creation of any Lien upon any Property
                  of the Parent, the Company or SPHI under the provisions of,
                  any agreement, charter instrument, bylaw or other instrument
                  to which they are a party or by which they or any of their
                  Property may be bound.

                  (b) OBLIGATIONS ARE ENFORCEABLE. Each of this Agreement and
         the Notes has been duly authorized by all necessary action on the part
         of the Parent and the Company, has been executed and delivered by duly
         authorized officers of the Parent and the Company, and constitutes a
         legal, valid and binding obligation of the Parent and the Company,
         enforceable in accordance with its terms, except that the
         enforceability hereof and of the Notes may be:

                           (i) limited by applicable bankruptcy, reorganization,
                  arrangement, insolvency, moratorium, or other similar laws
                  affecting the enforceability of creditors' rights generally;
                  and

                           (ii) subject to the availability of equitable
                  remedies.

         2.16     GOVERNMENTAL CONSENT.

         Neither the nature of the Parent, the Company or any Subsidiary, or of
any of their respective businesses or Properties, nor any relationship between
the Parent, the Company or any Subsidiary and any other Person, nor any
circumstance in connection with the offer, issuance, sale or delivery of the
Notes and the execution and delivery of this Agreement, is such as to require a
consent, approval or authorization of, or filing, registration or qualification
with, any Governmental Authority on the part of the Parent or the Company as a
condition to the execution and delivery of this Agreement or the offer,
issuance, sale or delivery of the Notes.

         2.17     PRIVATE OFFERING.

         None of the Parent, the Company or NationsBanc Montgomery Securities
LLC (the only Person authorized or employed by the Parent or the Company as
agent, broker, dealer or otherwise in connection with the offering or sale of
the Notes or any similar Security of the Company, other than employees of the
Parent and the Company) has offered any of the Notes or any similar Security
(other than the 1995 Notes) of the Company for sale to, or solicited offers to
buy any thereof from, or otherwise approached or negotiated with respect thereto
with, any prospective purchaser, other than the Purchasers and three (3) other
institutional investors, each of whom was offered all or a portion of the Notes
at private sale for investment.


                                       13
<PAGE>   18
         2.18     NO DEFAULTS.

                  (a) THE NOTES. No event has occurred and no condition exists
         that, upon the issuance of the Notes and the execution and delivery of
         this Agreement, would constitute a Default or an Event of Default.

                  (b) CHARTER INSTRUMENT, OTHER AGREEMENTS. None of the Parent,
         the Company or SPHI is in violation in any respect of any term of any
         charter instrument or bylaw. No other Subsidiary is in violation in any
         respect of any term of any charter instrument or bylaw and none of the
         Parent, the Company or any Subsidiary is in violation in any respect of
         any term in any agreement or other instrument to which it is a party or
         by which it or any of its Property may be bound, which violations, in
         the aggregate, could reasonably be expected to have a Material Adverse
         Effect.

         2.19     USE OF PROCEEDS.

                  (a) USE OF PROCEEDS. The Company will apply the proceeds from
         the sale of the Notes in the manner specified in Part 2.19(a) of Annex
         3.

                  (b) MARGIN SECURITIES. None of the transactions contemplated
         herein and in the Notes (including, without limitation, the use of the
         proceeds from the sale of the Notes) violates, will violate or will
         result in a violation of section 7 of the Securities Exchange Act of
         1934, as amended, or any regulations issued pursuant thereto,
         including, without limitation, Regulations T, U and X of the Board of
         Governors of the Federal Reserve System, 12 C.F.R., Chapter II. None of
         the Parent, the Company or SPHI owns, or with the proceeds of the sale
         of the Notes intends to own, carry or purchase, or refinance borrowings
         that were used to own, carry or purchase, any Margin Security,
         including Margin Securities originally issued by the Parent, the
         Company or SPHI. The respective obligations of the Parent and the
         Company under the Financing Documents are not and will not be secured
         by any Margin Security, and no Notes are being sold on the basis of any
         such collateral.

                  (c) ABSENCE OF FOREIGN OR ENEMY STATUS. Neither the Parent,
         the Company nor any Subsidiary is an "enemy" or an "ally of the enemy"
         within the meaning of section 2 of the Trading with the Enemy Act (50
         U.S.C. App. Sec. 1 et seq.), as amended. Neither the Parent, the
         Company nor any Subsidiary is in violation of, and neither the issuance
         and sale of the Notes by the Company nor its use of the proceeds
         thereof as contemplated by this Agreement, will violate, the Trading
         with the Enemy Act, as amended, or any executive orders, proclamations
         or regulations issued pursuant thereto, including, without limitation,
         regulations administered by the Office of Foreign Asset Control of the
         Department of the Treasury (31 C.F.R., Subtitle B, Chapter V).


                                       14
<PAGE>   19
         2.20     YEAR 2000 COMPLIANT.

         Each of the Parent's, the Company's and the Significant Subsidiaries'
has reviewed their material internal computer systems and expect such systems to
be year 2000 compliant in a timely manner and the advent of the year 2000 and
its impact on such computer systems is not expected to have a Material Adverse
Effect.

3.       CLOSING CONDITIONS

         Your obligation to purchase and pay for the Notes to be delivered to
you at the Closing is subject to the following conditions precedent:

         3.1      OPINIONS OF COUNSEL.

         You shall have received from

                  (a) Robert M. Hart, Esq., Senior Vice President and General
         Counsel of the Parent and counsel to the Company, and

                  (b) Hebb & Gitlin, a Professional Corporation, your special
         counsel,

closing opinions, each dated as of the Closing Date, and substantially in the
respective forms set forth in Exhibit B1 and Exhibit B2, and as to such other
matters as you may reasonably request. This Section 3.1 shall constitute
direction by the Parent and the Company to such counsel named in the foregoing
clause (a) to deliver such closing opinion to you.

         3.2      WARRANTIES AND REPRESENTATIONS TRUE.

         The warranties and representations contained in Section 0 shall be true
on the Closing Date with the same effect as though made on and as of that date.

         3.3      OFFICERS' CERTIFICATES.

         You shall have received

                  (a) a certificate dated the Closing Date and signed by the
         President or a Vice-President and the Treasurer or an Assistant
         Treasurer of the Parent, substantially in the form of Exhibit C1,
         certifying that the conditions specified in Section 0 and Section 0
         have been fulfilled,

                  (b) a certificate dated the Closing Date and signed by the
         President or a Vice-President and the Treasurer or an Assistant
         Treasurer of the Company, substantially in the form of Exhibit C2,
         certifying that the conditions specified in Section 0 and Section 0
         have been fulfilled,


                                       15
<PAGE>   20
                  (c) a certificate dated the Closing Date and signed by the
         Secretary or an Assistant Secretary of the Parent, substantially in the
         form of Exhibit D1, with respect to the matters therein set forth, and

                  (d) a certificate dated the Closing Date and signed by the
         Secretary or an Assistant Secretary of the Company, substantially in
         the form of Exhibit D2, with respect to the matters therein set forth.

         3.4      LEGALITY.

         The Notes shall on the Closing Date qualify as a legal investment for
you under applicable insurance law (without regard to any "basket" or "leeway"
provisions) and you shall have received such evidence as you may reasonably
request to establish compliance with this condition.

         3.5      PRIVATE PLACEMENT NUMBER.

         The Company shall have obtained or caused to be obtained a private
placement number for the Notes from the CUSIP Service Bureau of Standard &
Poor's, a division of McGraw-Hill, Inc., and you shall have been informed of
such private placement number.

         3.6      EXPENSES.

         All fees and disbursements required to be paid pursuant to Section 0(b)
shall have been paid in full.

         3.7      OTHER PURCHASERS.

         None of the Purchasers other than you shall have failed to execute and
deliver a Note Purchase Agreement or to accept delivery of or make payment for
the Notes to be purchased by it on the Closing Date.

         3.8      PROCEEDINGS SATISFACTORY.

         All proceedings taken in connection with the issuance and sale of the
Notes and all documents and papers relating thereto shall be satisfactory to you
and the Special Counsel. You and the Special Counsel shall have received copies
of such documents and papers as you or they may reasonably request in connection
therewith or in connection with the Special Counsel's closing opinion, all in
form and substance satisfactory to you and the Special Counsel.


                                       16
<PAGE>   21
         3.9      COMPLIANCE WITH THIS AGREEMENT.

         Each of the Parent and the Company shall have performed and complied
with all agreements and conditions contained herein that are required to be
performed or complied with by the Parent and the Company on or prior to the
Closing Date, and such performance and compliance shall remain in effect on the
Closing Date.

4.       PURCHASERS' SPECIAL RIGHTS

         4.1      DIRECT PAYMENT.

         Notwithstanding anything to the contrary herein or in the Notes, the
Company shall pay all amounts payable to any Institutional Investor with respect
to each Note held by such Institutional Investor (without any presentment of
such Notes and without any notation of such payment being made thereon) by
crediting, by federal funds bank wire transfer, the account of such
Institutional Investor in any bank in the United States of America as may be
designated in writing by such Institutional Investor, or in such other manner as
may be reasonably directed or to such other address in the United States of
America as may be reasonably designated in writing by such Institutional
Investor. Your address on Annex 1 shall be deemed to constitute notice,
direction or designation (as appropriate) to the Company with respect to direct
payments as aforesaid. In all other cases, all amounts payable with respect to
each Note shall be made by check mailed and addressed to the registered holder
of each Note at the address shown in the register maintained by the Company
pursuant to Section 0.

         Each holder of Notes agrees that in the event it shall sell or transfer
any Note

                  (a) it shall, prior to the delivery of such Note (unless it
         shall have already done so), make a notation thereon of all principal,
         if any, prepaid on such Note and shall also note thereon the date to
         which interest shall have been paid on such Note, and

                  (b) it shall promptly notify the Company of the name and
         address of the transferee of any such Note so transferred (or, if such
         holder does not have such information, the name and address of the
         Person effecting such transfer) and the effective date of such
         transfer.

         4.2      DELIVERY EXPENSES.

         If any holder of Notes surrenders any Note to the Company pursuant
hereto, the Company shall pay the cost of delivering to or from such holder's
home office or custodian bank from or to the Company, insured to the reasonable
satisfaction of such holder, the surrendered Note and any Note issued in
substitution or replacement for the surrendered Note.


                                       17
<PAGE>   22
         4.3      ISSUANCE TAXES.

         The Company shall pay all taxes in connection with the issuance and
sale of the Notes and in connection with any modification of this Agreement and
the Notes and shall save each holder of Notes harmless without limitation as to
time against any and all liabilities with respect to all such taxes. The
obligations of the Company under this Section 0 shall survive the payment or
prepayment of the Notes and the termination hereof.

5.       PREPAYMENTS

         5.1      REQUIRED PREPAYMENTS.

         In addition to paying the entire principal amount and the interest due
on the Notes outstanding on the maturity date thereof, the Company shall prepay,
and there shall become due and payable, Eight Million Dollars ($8,000,000)
principal amount of the Notes on December 11th in each year beginning on
December 11, 2000 and ending on December 11, 2004, inclusive. Each such
prepayment shall be at one hundred percent (100%) of the principal amount
prepaid, together with interest accrued thereon to the date of prepayment.
Without limitation of the foregoing, all of the principal of the Notes remaining
outstanding on December 11, 2004 (if any), together with interest accrued
thereon, shall become due and payable on December 11, 2004.

         5.2      OPTIONAL PREPAYMENTS.

                  (a) OPTIONAL PREPAYMENTS. The Company may prepay the principal
         amount of the Notes in whole or in part, at any time, in multiples of
         One Million Dollars ($1,000,000) (or, if the aggregate outstanding
         principal amount of the Notes is less than One Million Dollars
         ($1,000,000) at such time, then such principal amount), together with

                           (i) an amount equal to the Make-Whole Amount at such
                  time in respect of the principal amount of the Notes being so
                  prepaid, and

                           (ii) interest on such principal amount then being
                  prepaid accrued to the prepayment date.

                  (b) NOTICE OF OPTIONAL PREPAYMENT. The Company will give
         notice of any optional prepayment of the Notes to each holder of the
         Notes not less than thirty (30) days or more than sixty (60) days
         before the date fixed for prepayment, specifying:

                           (i) such date;

                           (ii) the Section hereof under which the prepayment is
                  to be made;

                           (iii) the principal amount of each Note to be prepaid
                  on such date;


                                       18
<PAGE>   23
                           (iv) the interest to be paid on each such Note,
                  accrued to the date fixed for payment; and

                           (v) a reasonably detailed calculation of an estimated
                  Make-Whole Amount for such Notes, if any (calculated as if the
                  date of such notice were the date of prepayment), due in
                  connection with such prepayment.

         Notice of prepayment having been so given, the aggregate principal
         amount of the Notes specified in such notice, together with the
         Make-Whole Amount, if any, and accrued interest thereon shall become
         due and payable on the specified prepayment date. Contemporaneously
         with such prepayment the Company shall deliver to each holder of Notes
         a certificate of the President, a Vice President or the Treasurer of
         the Company specifying the calculation of such Make-Whole Amount as of
         the specified prepayment date, accompanied by a copy of the Applicable
         H.15 used in determining the Make-Whole Discount Rate (as both such
         terms are defined in the definition of Make-Whole Amount) in respect of
         such prepayment.

                  (c) EFFECT OF PARTIAL PREPAYMENTS. Each prepayment of the
         Notes pursuant to this Section 5.2 shall be applied to reduce ratably
         each of the then unpaid mandatory principal prepayments required by
         Section 0 remaining after the date of such prepayment.

         5.3      PREPAYMENT UPON A DOWNGRADE EVENT.

                  (a) NOTICE AND OFFER. In the event a Downgrade Event shall
         occur or exist, the Parent and the Company will, within three (3)
         Business Days of the first occurrence or existence of such Downgrade
         Event, give written notice of such Downgrade Event to each holder of
         Notes by registered mail and, simultaneously with the sending of such
         written notice, send a copy of such notice to each such holder via an
         overnight courier of national reputation. Such written notice shall
         contain, and such written notice shall constitute, an irrevocable offer
         by the Company to prepay all, but not less than all, the Notes held by
         such holder on a date specified in such notice (the "Downgrade
         Prepayment Date") that is not less than thirty (30) days and not more
         than sixty (60) days after the date of such notice. If the Downgrade
         Prepayment Date shall not be specified in such notice, the Downgrade
         Prepayment Date shall be the thirtieth (30th) day after the date of
         such holder's receipt of such notice.

                  (b) ACCEPTANCE AND PAYMENT. To accept such offered prepayment,
         a holder of Notes shall cause a notice of such acceptance to be
         delivered to the Company not later than twenty (20) days after the date
         of receipt by such holder of the written offer of such prepayment (it
         being understood that the failure by a holder to respond to such
         written offer of prepayment within such period of twenty (20) days
         shall be deemed to constitute an acceptance of such offer). If so
         accepted, such offered prepayment shall be due and payable on the
         Downgrade Prepayment Date. Such offered prepayment shall be made at one
         hundred percent (100%) of the principal amount of such Notes, together
         with any Make-Whole Amount as of the Downgrade Prepayment Date with
         respect thereto and 


                                       19
<PAGE>   24
         interest on the Notes then being prepaid accrued to the Downgrade
         Prepayment Date. Contemporaneously with the making of any such
         prepayment, the Company shall deliver to each holder of such Notes by
         facsimile transmission a certificate of the President, a Vice President
         or the Treasurer of the Company specifying the details of the
         calculation of such Make-Whole Amount as of the specified Downgrade
         Prepayment Date, together with a copy of the Applicable H.15 used in
         determining the Make-Whole Discount Rate (as both such terms are
         defined in the definition of Make-Whole Amount) in respect of such
         prepayment.

                  (c) OFFICER'S CERTIFICATE. Each offer to prepay the Notes
         pursuant to this Section 5.3 shall be accompanied by a certificate,
         executed by the President or a Vice President of the Company and dated
         the date of such offer, specifying:

                           (i) the Downgrade Prepayment Date;

                           (ii) the Section hereof under which such offer is
                  made;

                           (iii) the principal amount of each Note offered to be
                  prepaid;

                           (iv) the unpaid interest that would be due on each
                  such Note offered to be prepaid, accrued to the date fixed for
                  payment;

                           (v) a reasonably detailed calculation of an estimated
                  Make-Whole Amount, if any (calculated as if the date of such
                  notice was the date of prepayment), that would be due in
                  connection with such offered prepayment; and

                           (vi) in reasonable detail, the cause of the Downgrade
                  Event.

                  (d) EFFECT OF PREPAYMENT. Each prepayment of the Notes
         pursuant to this Section 5.3 shall be applied to reduce ratably each of
         the then unpaid mandatory principal prepayments required by Section 0
         remaining after the date of such prepayment.

         5.4      PARTIAL PREPAYMENT PRO RATA.

         If at the time any required or optional prepayment under Section 5.1 or
Section 5.2 is due there is more than one Note outstanding, the aggregate
principal amount of each required or optional partial prepayment of the Notes
shall be allocated among the holders of the Notes at the time outstanding in
proportion to the respective unpaid principal amounts of the Notes then
outstanding.

         5.5      NOTATION OF NOTES ON PREPAYMENT.

         Upon any partial prepayment of a Note, such Note may, at the option of
the holder thereof, be


                                       20
<PAGE>   25
                  (a) surrendered to the Company pursuant to Section 0 in
         exchange for a new Note in a principal amount equal to the principal
         amount remaining unpaid on the surrendered Note,

                  (b) made available to the Company for notation thereon of the
         portion of the principal so prepaid, or

                  (c) marked by such holder with a notation thereon of the
         portion of the principal so prepaid, provided that such holder shall
         notify the Company that it has made such notation.

In case the entire principal amount of any Note is prepaid, such Note shall be
surrendered to the Company for cancellation and shall not be reissued, and no
Note shall be issued in lieu of the prepaid principal amount of any Note.

         5.6      NO OTHER OPTIONAL PREPAYMENTS.

         Except as provided in Section 5.2, neither the Parent, the Company, any
Subsidiary nor any Affiliate may make any optional prepayment (whether directly
or indirectly by purchase or other acquisition) in respect of the Notes.

6.       REGISTRATION; EXCHANGE; SUBSTITUTION OF NOTES

         6.1      REGISTRATION OF NOTES.

         The Company shall cause to be kept at its office, maintained pursuant
to Section 7.3, a register for the registration and transfer of Notes. The name
and address of each holder of one or more Notes, each transfer thereof and the
name and address of each transferee of one or more Notes shall be registered in
the register. The Person in whose name any Note shall be registered shall be
deemed and treated as the owner and holder thereof for all purposes hereof, and
the Company shall not be affected by any notice or knowledge to the contrary.


                                       21
<PAGE>   26
         6.2      EXCHANGE OF NOTES.

         Upon surrender of any Note at the office of the Company maintained
pursuant to Section 7.3 duly endorsed or accompanied by a written instrument of
transfer duly executed by the registered holder of such Note or its
attorney-in-fact duly authorized in writing, the Company shall execute and
deliver, at the Company's expense (except as provided below), new Notes in
exchange therefor, in an aggregate principal amount equal to the unpaid
principal amount of the surrendered Note. Each such new Note shall be payable,
in accordance with the terms of this Agreement, to such Person as such holder
may request and shall be substantially in the form of Exhibit A. Each such new
Note shall be dated and bear interest from the date to which interest shall have
been paid on the surrendered Note or dated the date of the surrendered Note if
no interest shall have been paid thereon. The Company may require payment of a
sum sufficient to cover any stamp tax or governmental charge imposed in respect
of any such transfer of Notes. As a condition precedent to any such transfer of
Notes, the Company may require the transferee to disclose the source of funds
with which it is acquiring Notes and, if such transfer would constitute a
"prohibited transaction" (as provided for in section 406(a) of ERISA or section
4975 of the IRC), the Company shall not be obligated to effect such transfer.

         6.3      REPLACEMENT OF NOTES.

         Upon receipt by the Company of evidence reasonably satisfactory to it
of the ownership of and the loss, theft, destruction or mutilation of any Note
(which evidence shall be, in the case of an Institutional Investor, notice from
such Institutional Investor of such ownership and such loss, theft, destruction
or mutilation) and

                  (a) in the case of loss, theft or destruction, of indemnity
         reasonably satisfactory to it (provided that if the holder of such Note
         is an Institutional Investor, such holder's own agreement of indemnity
         shall be deemed to be satisfactory), or

                  (b) in the case of mutilation, upon surrender and cancellation
         thereof,

the Company at its own expense shall execute and deliver, in lieu thereof, a new
Note, dated and bearing interest from the date to which interest shall have been
paid on such lost, stolen, destroyed or mutilated Note or dated the date of such
lost, stolen, destroyed or mutilated Note if no interest shall have been paid
thereon.


                                       22
<PAGE>   27
7.       COVENANTS

         Each of the Parent and the Company covenants that on and after the
Closing Date and so long as any of the Notes shall be outstanding:

         7.1      PAYMENT OF TAXES AND CLAIMS.

         Each of the Parent and the Company will, and the Company will cause
SPHI to, pay before they become delinquent,

                  (a) all taxes, assessments and governmental charges or levies
         imposed upon it or its Property, and

                  (b) all claims or demands of materialmen, mechanics, carriers,
         warehousemen, landlords and other like Persons that, if unpaid, might
         result in the creation of a Lien upon its Property,

provided, that items of the foregoing description need not be paid

                           (i) while being contested in good faith and by
                  appropriate proceedings as long as adequate book reserves have
                  been established and maintained and exist with respect
                  thereto, and

                           (ii) so long as the title of the Parent, the Company
                  or SPHI, as the case may be, to, and its right to use, such
                  Property, is not materially adversely affected thereby.

         7.2      MAINTENANCE OF PROPERTIES; CORPORATE EXISTENCE; ETC.

         Each of the Parent and the Company will, and the Company will cause
SPHI to,

                  (a) PROPERTY -- maintain, preserve and keep its Property in
         good condition, ordinary wear and tear excepted, and make all necessary
         renewals, replacements, additions, betterments and improvements
         thereto, except where the failure to do so (i) could not reasonably be
         expected to have a Material Adverse Effect and (ii) is in conformity
         with the marketing strategy of the Company (A) to maximize proceeds
         from the sale of Real Estate Assets or (B) to sell the Real Estate
         Assets on an "as is" basis;

                  (b) INSURANCE -- maintain, with financially sound and
         reputable insurers, insurance with respect to its Property and business
         against such casualties and contingencies, of such types (including,
         without limitation, insurance with respect to losses arising out of
         Property loss or damage, public liability, business interruption,
         larceny, workers' compensation, embezzlement or other criminal
         misappropriation) and in such amounts as is customary in the case of
         corporations of established reputations engaged in 


                                       23
<PAGE>   28
         the same or a similar business and similarly situated, it being
         understood that the Parent, the Company and SPHI may self-insure
         against hazards and risks with respect to which, and in such amounts
         as, the Parent, the Company or SPHI in good faith determines to be
         prudent and consistent with sound financial and business practice;

                  (c) FINANCIAL RECORDS -- keep accurate and complete books of
         records and accounts in which full and correct entries shall be made of
         all its business transactions and which will permit the provision of
         accurate and complete financial statements in accordance with GAAP, and
         the Parent will cause each other Subsidiary to keep accurate and
         complete books of records and accounts in which full and correct
         entries shall be made of all its business transactions and which will
         permit the provision of accurate and complete financial statements in
         accordance with GAAP, to the extent required by the provisions of
         Section 8.1(a);

                  (d) CORPORATE EXISTENCE AND RIGHTS -- do or cause to be done
         all things necessary to preserve and keep in full force and effect its
         corporate existence, rights (charter and statutory) and franchises,
         subject to Section 7.9, except where the failure to do so could not
         reasonably be expected to have a Material Adverse Effect; and

                  (e) COMPLIANCE WITH LAW -- be in compliance with all laws,
         ordinances or governmental rules or regulations to which it is subject
         (including, without limitation, any Environmental Protection Law) and
         obtain any licenses, certificates, permits, franchises or other
         governmental authorizations necessary to the ownership of its
         Properties or to the conduct of its business if such non-compliance or
         failure to obtain could reasonably be expected to have a Material
         Adverse Effect or materially adversely affect the ability of the
         Parent, the Company or SPHI to conduct in the future the business it
         conducts at the time of such violation or failure to obtain.

         7.3      PAYMENT OF NOTES AND MAINTENANCE OF OFFICE.

         The Company will punctually pay, or cause to be paid, the principal of
and interest (and Make-Whole Amount, if any) on, the Notes, as and when the same
shall become due according to the terms hereof and of the Notes, and will
maintain an office at the address of the Company set forth in Section 0 where
notices, presentations and demands in respect hereof or of the Notes may be made
upon it. Such office will be maintained at such address until such time as the
Company shall notify the holders of the Notes in writing of any change of
location of such office, which will in any event be located within the United
States of America.

         7.4      PENSION PLANS.

                  (a) COMPLIANCE. Each of the Parent and the Company will, and
         will cause each ERISA Affiliate to, at all times with respect to each
         Pension Plan, make timely payment of contributions required to meet the
         minimum funding standard set forth in ERISA or the IRC with respect
         thereto, and to comply with all other applicable material provisions of
         ERISA and the IRC.


                                       24
<PAGE>   29
                  (b) RELATIONSHIP OF VESTED BENEFITS TO PENSION PLAN ASSETS.
         The Parent or an ERISA Affiliate will contribute sufficient amounts to
         each Pension Plan so that the present value of all employee benefits
         vested under each Pension Plan at any time will not exceed, by more
         than Two Million Five Hundred Thousand Dollars ($2,500,000), the assets
         of such Pension Plan allocable to such vested benefits at such time, in
         each case determined pursuant to Section 7.4(c).

                  (c) VALUATIONS. All assumptions and methods used to determine
         the actuarial valuation of vested employee benefits under Pension Plans
         and the present value of assets of Pension Plans will be reasonable in
         the good faith judgment of the Parent, the Company or the actuary
         engaged by the Parent or the Company, as the case may be, and will
         comply with all requirements of law.

                  (d) PROHIBITED ACTIONS. Each of the Parent and the Company
         will not, and will not permit any ERISA Affiliate to:

                           (i) engage in any "prohibited transaction" (as such
                  term is defined in section 406 of ERISA or section 4975 of the
                  IRC) that would result in the imposition of a material tax or
                  penalty;

                           (ii) incur with respect to any Pension Plan any
                  material "accumulated funding deficiency" (as such term is
                  defined in section 302 of ERISA), whether or not waived;

                           (iii) terminate any Pension Plan in a manner that
                  could result in the imposition of a Lien on the Property of
                  the Parent, the Company or any Subsidiary pursuant to section
                  4068 of ERISA or the creation of any liability under section
                  4062 of ERISA;

                           (iv) fail to make any payment required by section 515
                  of ERISA; or

                           (v) at any time be an "employer" (as such term is
                  defined in section 3 of ERISA) required to contribute to any
                  Multiemployer Plan or a "substantial employer" (as such term
                  is defined in section 4001 of ERISA) required to contribute to
                  any Multiple Employer Pension Plan if, at such time, it could
                  reasonably be expected that the Parent, the Company or any
                  Subsidiary will incur withdrawal liability in respect of such
                  Multiemployer Plan or Multiple Employer Pension Plan

         if the aggregate amount of the taxes, penalties, funding deficiencies,
         interest or other amounts and any other liabilities in respect of any
         of the foregoing could reasonably be expected to have a Material
         Adverse Effect.


                                       25
<PAGE>   30
         7.5      LINE OF BUSINESS.

         The Company will not, and will not permit SPHI to, engage in any
business other than the ownership, operation and disposition of Real Estate
Assets and activities reasonably related thereto.

         7.6      INDEBTEDNESS.

                  (a) TOTAL INDEBTEDNESS. The Company will not, and will not
         permit SPHI to, incur or in any manner be or become liable in respect
         of any Indebtedness, on and after the Closing Date, except

                           (i) Indebtedness evidenced by the Notes,

                           (ii) Indebtedness evidenced by the 1995 Notes, and

                           (iii) an additional amount of Indebtedness of the
                  Company and SPHI, determined on a consolidated basis for such
                  Persons, not exceeding Ten Million Dollars ($10,000,000) in
                  the aggregate at any time outstanding.

                  (b) INDEBTEDNESS COVERAGE. The Company will not at any time
         permit the ratio of

                           (i) Qualified Indebtedness Coverage Assets at such
                  time to

                           (ii) the sum of

                                    (A) the aggregate of all Indebtedness of the
                           Company and SPHI at such time, determined on a
                           consolidated basis for such Persons, plus

                                    (B) Scheduled Interest Payments at such
                           time, plus

                                    (C) the amount of Operating Expenses that
                           the Company and SPHI would be permitted to incur on
                           such date pursuant to Section 7.8, plus

                                    (D) if such time is on or after the date the
                           last Real Estate Asset is sold and prior to the first
                           date of the establishment of the Defeasance Trust
                           pursuant to Section 7.15, the Make-Whole Amount in
                           respect of the Notes and the 1995 Notes at such time

         to be less than 1.0 to 1.0.


                                       26
<PAGE>   31
         7.7      RESTRICTED INVESTMENTS AND RESTRICTED PAYMENTS

         The Company will not, and will not permit SPHI to, make any Restricted
Investment and the Company will not declare or make, or become obligated to
declare or make, any Restricted Payment (except for the Permitted Extraordinary
Dividend), unless:

                  (a) immediately after, and after giving effect to, such
         Restricted Investment or such Restricted Payment, as the case may be,
         the aggregate amount of all Restricted Investments of the Company and
         SPHI at such time plus all Restricted Payments declared, made or
         obligated to be declared or made by the Company on and after the
         Closing Date would not exceed the sum of

                           (i) Excess Cumulative Net Proceeds at such time, plus

                           (ii) the greater of

                                    (A) Zero Dollars ($0) and

                                    (B) the result of

                                             (1) Cumulative Non-Essential
                                    Contributions at such time minus

                                             (2) the Transfer Contribution
                                    Amount at such time;

                  (b) immediately prior to, immediately after, and after giving
         effect to, such Restricted Investment or such Restricted Payment, as
         the case may be, the ratio of

                           (i) Qualified Restricted Payment Assets at such time
                  to

                           (ii) the aggregate of all Indebtedness of the Company
                  and SPHI at such time

         would not be less than 2.0 to 1.0; and

                  (c) at the time of such declaration, making or becoming
         obligated and immediately before, and after giving effect to, such
         Restricted Investment or such Restricted Payment and any concurrent
         transactions, no Default or Event of Default exists or would exist.

         Notwithstanding the requirements of clause (b) above and provided that
the requirements of clauses (a) and (c) above have been satisfied, a cash
dividend may be declared by the Company in respect of its capital stock in an
amount, when added to the aggregate of other cash dividends made by the Company
after the Closing Date (other than the Permitted Extraordinary Dividend) that
does not exceed the aggregate amount of Cumulative Non-Essential Contributions


                                       27
<PAGE>   32
at such time minus the Transfer Contribution Amount at such time.

         7.8      OPERATING EXPENSES

         The Company will not, and will not permit SPHI to:

                  (a) incur any Operating Expense unless Cumulative Operating
         Expenses at such time would not exceed the sum of

                           (i) Forty Million Dollars ($40,000,000), plus

                           (ii) Operating Expense Contributions at such time; or

                  (b) permit, at any time, the sum of

                           (i) Cumulative Operating Expenses at such time minus
                  Operating Expense Contributions at such time, plus

                           (ii) the aggregate amount outstanding on all Seller
                  Notes at such time

         to exceed Ninety Million Dollars ($90,000,000).

         7.9      MERGER AND CONSOLIDATION.

         The Company will not, and will not permit SPHI to, merge into,
consolidate with, or sell, lease, transfer or otherwise dispose of all or
substantially all of its Property (except as permitted under Section 7.10) to,
any other Person or permit any other Person to consolidate with or merge into it
(except that SPHI may merge into or consolidate with the Company if the Company
is the surviving corporation); provided that the foregoing restriction does not
apply to the merger or consolidation of the Company with, or the sale, lease,
transfer or other disposition by the Company of all or substantially all of its
Property to, another corporation, if:

                  (a) the Company is the surviving corporation that results from
         such merger or consolidation; and

                  (b) immediately prior to, and immediately after the
         consummation of the transaction, and after giving effect thereto, no
         Default or Event of Default exists or would exist.

         7.10     TRANSFERS OF PROPERTY

         The Company will not, and will not permit SPHI to, sell, lease as
lessor, transfer or otherwise dispose of any Property (collectively,
"Transfers") (provided that "Transfers" shall not include transfers of cash for
the purpose of paying Operating Expenses, interest, principal or Make-Whole
Amount, if any, relating to the Notes and any other Indebtedness, Restricted


                                       28
<PAGE>   33
Payments to the Parent and Permitted Investments), except:

                  (a) Transfers of Property, other than Real Estate Assets, if
         the sum of

                           (i) the book value of such Property at the time of
                  such Transfer, plus

                           (ii) the aggregate book value of all other Property
                  of the Company and SPHI, other than Real Estate Assets, that
                  has been the subject of a Transfer (in each case measured at
                  the time of the Transfer of such Property) during the period
                  commencing on the Closing Date and ended at the time of such
                  Transfer,

         would be less than Two Hundred Thousand Dollars ($200,000), provided
         that the Company will not Transfer any shares of the stock (or any
         warrants, rights or options to purchase stock or other Securities
         exchangeable for or convertible into stock) of SPHI;

                  (b) any Transfer of Real Estate Assets for cash consideration
         or Seller Notes, or a combination of cash consideration and Seller
         Notes, so long as the aggregate amount outstanding with respect to all
         Seller Notes does not exceed Fifty Million Dollars ($50,000,000) and if
         either of the following conditions would be satisfied with respect to
         such Transfer:

                           (i) the Transfer Consideration with respect to such
                  Transfer is at least equal to the Designated Disposition Value
                  of the Real Estate Asset which is the subject of such
                  Transfer, or

                           (ii) the sum of

                                    (A) the Transfer Consideration with respect
                           to such Transfer, plus

                                    (B) the aggregate Transfer Consideration
                           received by the Company and SPHI with respect to all
                           other Real Estate Assets that have been the subject
                           of a Transfer on and after the Closing Date, plus

                                    (C) Cumulative Non-Essential Contributions
                           at such time

                  would exceed the aggregate Designated Disposition Values of
                  all Real Estate Assets that have been the subject of Transfers
                  (in each case measured at the time of such Transfer) on and
                  after the Closing Date; and

                  (c) immediately prior to, and immediately after the
         consummation of any such Transfer, and after giving effect thereto, no
         Default or Event of Default exists or would exist.


                                       29
<PAGE>   34
         7.11     PURCHASE OBLIGATION OF THE PARENT

         The Parent will purchase Real Estate Assets, selected by the Parent and
for cash consideration equal to the Designated Disposition Value of such Real
Estate Assets, in an amount sufficient to provide the Company with net cash
proceeds, as necessary, to pay

                  (a) the principal of and interest (and Make-Whole Amount, if
         any) on, the Notes, and any amounts due under Section 9.2(e) as and
         when the same shall become due according to the terms hereof and of the
         Notes (including, without limitation, the terms of Section 5.3), or

                  (b) Operating Expenses due and payable at such time.

         7.12     TRANSACTIONS WITH AFFILIATES.

         The Company will not, and will not permit SPHI to, enter into any
material transaction or material arrangement, including, without limitation, the
purchase, sale or exchange of Property or the rendering of any service, with any
Affiliate, except the sales contemplated by Section 7.11 or in the ordinary
course of and pursuant to the reasonable requirements of the Company's or SPHI's
business and upon fair and reasonable terms no less favorable to the Company or
SPHI than would be obtained in a comparable arm's-length transaction with a
Person not an Affiliate.

         7.13     LIENS.

                  (a) NEGATIVE PLEDGE. The Company will not, and will not permit
         SPHI to, cause or permit to exist, or agree or consent to cause or
         permit to exist in the future (upon the happening of a contingency or
         otherwise), any of its Property, whether now owned or hereafter
         acquired, to be subject to a Lien except:

                           (i) Liens described in Part 7.13(a)(i) of Annex 3;

                           (ii) Liens

                                    (A) arising from judicial attachments and
                           judgments,

                                    (B) securing appeal bonds or supersedeas
                           bonds, and

                                    (C) arising in connection with court
                           proceedings (including, without limitation, surety
                           bonds and letters of credit or any other instrument
                           serving a similar purpose),

                  provided that (1) such Liens are fully released within sixty
                  (60) days of their creation or the execution or other
                  enforcement of such Liens is effectively stayed, (2) the
                  claims secured thereby are being contested in good faith and
                  by appropriate 


                                       30
<PAGE>   35
                  proceedings and (3) adequate book reserves in accordance with
                  GAAP shall have been established and maintained and shall
                  exist with respect thereto;

                           (iii) Liens incurred or deposits made in the ordinary
                  course of business to secure the performance of letters of
                  credit, bids, tenders, sales contracts, leases, statutory
                  obligations, construction obligations, bonds and assessments
                  or improvements, surety and performance bonds (of a type other
                  than set forth in Section 7.13(a)(ii)) and other similar
                  obligations not incurred in connection with the borrowing of
                  money, the obtaining of advances or the payment of the
                  deferred purchase price of Property, provided that, after
                  giving effect to any enhancement in value and use of other
                  Property related to such Property as a result of such Lien,
                  (1) such Liens do not in the aggregate materially detract from
                  the value of such Property and (2) the title of the Company or
                  SPHI to, and its right to use, such Property, is not
                  materially adversely affected thereby;

                           (iv) Liens incurred or deposits made in the ordinary
                  course of business in connection with workers' compensation,
                  unemployment insurance, social security and other like laws;

                           (v) Liens securing Property taxes, assessments or
                  governmental charges or levies or the claims or demands of
                  materialmen, mechanics, carriers, warehousemen, vendors,
                  landlords and other like Persons, provided that the payment
                  thereof is not at the time required by Section 7.1; and

                           (vi) Liens in the nature of reservations, exceptions,
                  encroachments, easements, rights-of-way, covenants,
                  conditions, restrictions, leases and other title exceptions or
                  encumbrances affecting real Property, provided that such
                  exceptions and encumbrances do not in the aggregate detract
                  from the value of such Property or interfere with the use of
                  such Property in the ordinary conduct of the business of the
                  Company and SPHI in a manner that has or could reasonably be
                  expected to have a Material Adverse Effect.

                  (b) EQUAL AND RATABLE LIEN; EQUITABLE LIEN. In case any
         Property shall be subjected to a Lien in violation of this Section 7.13
         the Company will forthwith make or cause to be made, to the fullest
         extent permitted by applicable law, provision whereby the Notes will be
         secured equally and ratably with all other obligations secured thereby
         pursuant to such agreements and instruments as shall be approved by the
         Required Holders, and the Company will cause to be delivered to each
         holder of a Note an opinion of independent counsel to the effect that
         such agreements and instruments are enforceable in accordance with
         their terms, and in any such case the Notes shall have the benefit, to
         the full extent that, and with such priority as, the holders of Notes
         may be entitled under applicable law, of an equitable Lien on such
         Property securing the Notes. Such violation of this Section 7.13 will
         constitute an Event of Default hereunder, whether or not any such
         provision is made pursuant to this Section 7.13(b).


                                       31
<PAGE>   36
                  (c) FINANCING STATEMENTS. The Company will not, and will not
         permit SPHI to, sign or file a financing statement under the Uniform
         Commercial Code of any jurisdiction that names the Company or SPHI as
         debtor, or sign any security agreement authorizing any secured party
         thereunder to file any such financing statement, except, in any such
         case, a financing statement filed or to be filed to perfect or protect
         a security interest that the Company or SPHI is entitled to create,
         assume or incur, or permit to exist, under the foregoing provisions of
         this Section 7.13 or to evidence for informational purposes a lessor's
         interest in Property leased to the Company or SPHI.

         7.14     PRIVATE OFFERING.

         Neither the Parent nor the Company will, nor will they permit any
Person acting on their behalf to, offer the Notes or any part thereof or any
similar Securities for issue or sale to, or solicit any offer to acquire any of
the same from, any Person so as to bring the issuance and sale of the Notes
within the provisions of section 5 of the Securities Act.

         7.15     DEFEASANCE.

                  (a) ESTABLISHMENT OF DEFEASANCE TRUST. If at any time neither
         the Company nor SPHI holds any Real Estate Assets, the Company shall
         contemporaneously with the sale of last Real Estate Asset and upon
         written notice (the "Trust Notice") to the holders of Notes then
         outstanding, establish a trust (the "Defeasance Trust"), solely in
         favor of all holders of Notes then outstanding, and irrevocably and
         absolutely assign, transfer, and convey to, and deposit into, said
         Defeasance Trust an amount of United States Governmental Obligations
         having interest and principal payments sufficient, in the opinion of
         independent certified public accountants of the Company expressed in a
         written certification thereof delivered to the holders of the Notes, to
         pay in full all remaining principal and interest payments, as the same
         shall fall due, in respect of all Notes then outstanding. Anything to
         the contrary contained herein notwithstanding, the Company may, at its
         sole discretion and at any time upon the delivery of a Trust Notice to
         the holders of Notes then outstanding, elect to establish a Defeasance
         Trust.

                  (b) DISCHARGE. Provided that

                           (i) the Defeasance Trust, the trustee thereof and the
                  terms and conditions (as well as the form and substance) of
                  the indenture whereby the Defeasance Trust shall have been
                  established shall be reasonably satisfactory to all holders of
                  Notes then outstanding (as evidenced by their written consent
                  thereto),

                           (ii) the purchase price of the United States
                  Governmental Obligations to be deposited into the Defeasance
                  Trust shall have been fully paid by the Company, and such
                  United States Governmental Obligations shall have been so
                  deposited into the Defeasance Trust (and each holder of Notes
                  then outstanding shall have received written verification
                  thereof by the trustee of the Defeasance Trust) and 


                                       32
<PAGE>   37
                  shall, as so deposited, be unencumbered by any Lien and
                  sufficient to pay all principal and interest to fall due on
                  the Notes then outstanding as provided in Section 5.1 and in
                  the Notes,

                           (iii) the Company shall have (1) paid in full all
                  fees, costs and expenses of the trustee of the Defeasance
                  Trust and of all holders of Notes then outstanding incurred in
                  connection with the preparation of the trust indenture and the
                  establishment of the Defeasance Trust, including, without
                  limitation, all reasonable attorney's fees and disbursements,
                  and (2) prepaid in full any and all fees, costs and expenses
                  of the trustee of the Defeasance Trust for the entire term of
                  the Defeasance Trust,

                           (iv) the Company shall have no continuing legal or
                  equitable interest in the Defeasance Trust or the United
                  States Governmental Obligations deposited into the Defeasance
                  Trust (other than a reversionary interest in any such United
                  States Governmental Obligations, or the proceeds therefrom,
                  remaining after the full, final and indefeasible payment of
                  all Notes and all interest thereon) and shall have no right to
                  direct or instruct the trustee of the Defeasance Trust, or to
                  remove such trustee, or to otherwise require such trustee to
                  take any action with respect to such United States
                  Governmental Obligations or otherwise,

                           (v) no Event of Default shall have occurred and be
                  continuing at the time of such deposit,

                           (vi) the Company shall have delivered the Trust
                  Notice to all holders of Notes then outstanding and a legal
                  opinion of counsel to the Company, reasonably satisfactory to
                  all holders of Notes then outstanding (as evidenced by their
                  written approval thereof), stating, among other things which
                  any holder of Notes then outstanding may reasonably request,
                  that (1) the Defeasance Trust is validly created and duly
                  constituted and that the sole beneficiaries thereof are the
                  holders of Notes then outstanding, (2) the United States
                  Governmental Obligations deposited therein were validly
                  contributed to the Defeasance Trust and constitute a legal and
                  valid res of the Defeasance Trust, (3) the Company's actions
                  in creating the Defeasance Trust and contributing the United
                  States Governmental Obligations thereto were duly authorized
                  and valid, (4) the Company, as the settlor of the Defeasance
                  Trust, has no right, title or interest in and to the
                  Defeasance Trust or the res thereof (other than a reversionary
                  interest in any United States Governmental Obligations or the
                  proceeds thereof remaining after the full, final and
                  indefeasible payment of all Notes and all interest thereon)
                  and has no power of direction, or right of removal, with
                  respect to the trustee of the Defeasance Trust, (5) all fees,
                  costs and expenses of the trustee for the entire term of the
                  Defeasance Trust have been prepaid in full and (6) the
                  creation of the Defeasance Trust and the depositing of the
                  United States Governmental Obligations therein shall not, for
                  IRC purposes with respect to any holder of Notes then
                  outstanding, result in a taxable event whereby (x) such holder
                  may become liable to pay a tax on any gain deemed 


                                       33
<PAGE>   38
                  to have arisen with respect to such transaction or (y) such
                  holder shall have been deemed to have suffered a loss with
                  respect to such transaction and (7) such holder will be
                  subject to Federal income tax on the same amount, in the same
                  manner and at the same times as would be the case if the Notes
                  were paid in the accordance with their terms and the terms of
                  this Agreement and such defeasance and discharge were not to
                  occur;

                           (vii) all principal, interest costs, expenses and
                  other sums due and payable under the this Agreement to the
                  holders of Notes outstanding on the date the Defeasance Trust
                  is created shall have been paid in full; and

                           (viii) the Company shall have delivered to the
                  holders of Notes then outstanding an opinion of independent
                  certified public accountants of the Company, reasonably
                  satisfactory to such holders, stating that (i) the amount of
                  United States Government Obligations deposited in the
                  Defeasance Trust are sufficient to pay in full all remaining
                  principal and interest payments, as the same shall fall due,
                  in respect of all Notes then outstanding and (ii) under GAAP
                  the creation of the Defeasance Trust and the depositing of the
                  United States Governmental Obligations therein shall not
                  result, with respect to any such holder, in an exchange of the
                  Note or Notes of such holder for all or part of such United
                  States Governmental Obligations which exchange would result in
                  a gain or loss being realized by such holder under GAAP in
                  respect of such transaction,

         then and in that case, all financial and restrictive covenants in
         respect of the Company set forth in Section 7 (other than this Section
         7.15) of this Agreement shall be discharged; provided, however, if the
         contribution to the Defeasance Trust of any United States Governmental
         Obligations is invalidated, declared to be fraudulent or preferential,
         set aside, or if any such United States Governmental Obligations are
         required to be returned or redelivered to the Company, or any
         custodian, trustee, receiver or any other Person under any bankruptcy
         act, state or federal law, common law or equitable cause, then, to the
         extent of such invalidation, return or redelivery, the financial and
         restrictive covenants set forth in Section 7 of this Agreement shall be
         revived and restored.

         As used in this Section 7.15, the term "United States Governmental
Obligations" shall mean any direct obligation of, or obligation guaranteed by,
the United States of America, or any agency controlled or supervised by or
acting as instrumentality of the United States of America pursuant to authority
granted by the Congress of the United States of America, so long as such
obligation or guarantee shall have the benefit of the full faith and credit of
the United States of America which shall have been pledged pursuant to authority
granted by the Congress of the United States of America.

         7.16     PERFORMANCE OF AGREEMENT.

         The Parent shall not cause or permit the Company or SPHI to take any
action, or fail to take any action, which would result in a violation of any
term or condition of this Agreement.



                                       34
<PAGE>   39
8.       INFORMATION AS TO PARENT AND COMPANY

         8.1      FINANCIAL AND BUSINESS INFORMATION.

                  (a)      INFORMATION AS TO THE PARENT.

                  The Parent shall deliver to each holder of Notes:

                           (i) Quarterly Statements -- as soon as practicable
                  after the end of each quarterly fiscal period in each fiscal
                  year of the Parent (other than the last quarterly fiscal
                  period of each such fiscal year), and in any event within
                  ninety (90) days thereafter:

                                    (A) an unaudited consolidated balance sheet
                           of the Parent and its consolidated subsidiaries as at
                           the end of such quarter, and

                                    (B) unaudited consolidated statements of
                           earnings and cash flows of the Parent and its
                           consolidated subsidiaries, for such quarter and (in
                           the case of the second and third quarters) for the
                           portion of the fiscal year ending with such quarter,

                  setting forth in each case in comparative form the
                  corresponding figures for the corresponding periods in the
                  previous fiscal year, and certified by a principal financial
                  officer of the Parent that said financial statements fairly
                  present the consolidated financial condition and results of
                  operations and cash flows of the Parent and its consolidated
                  subsidiaries, in accordance with GAAP consistently applied, as
                  at the end of, and for, such period (subject to normal
                  year-end adjustments), and accompanied by the certificate
                  required by Section 0; and

                           (ii) Annual Statements -- as soon as practicable
                  after the end of each fiscal year of the Parent, and in any
                  event within one hundred twenty (120) days thereafter:

                                    (A) a consolidated balance sheet of the
                           Parent and its consolidated subsidiaries, as at the
                           end of such year, and

                                    (B) consolidated statements of earnings,
                           changes in stockholders' equity and cash flows of the
                           Parent and its consolidated subsidiaries for such
                           year,

                  setting forth in each case in comparative form the
                  corresponding figures for the previous fiscal year, and
                  accompanied by


                                       35
<PAGE>   40
                                    (1) an opinion thereon of the accountants
                           named in Section 0(a) or other independent certified
                           public accountants of recognized national standing
                           selected by the Parent, which opinion shall, without
                           qualification, state that such financial statements
                           present fairly, in all material respects, the
                           financial position of the companies being reported
                           upon and their results of operations and cash flows
                           and have been prepared in conformity with GAAP, and
                           that the examination of such accountants in
                           connection with such financial statements has been
                           made in accordance with generally accepted auditing
                           standards, and that such audit provides a reasonable
                           basis for such opinion,

                                    (2) a certification by a principal financial
                           officer of the Parent that such consolidated
                           statements are complete and correct in all material
                           respects, and

                                    (3) the certificate required by Section 0.

                  (b) INFORMATION AS TO THE COMPANY.

                  The Company shall deliver to each holder of Notes:

                           (i) Quarterly Statements -- as soon as practicable
                  after the end of each quarterly fiscal period in each fiscal
                  year of the Company (other than the last quarterly fiscal
                  period of each such fiscal year), and in any event within
                  ninety (90) days thereafter:

                                    (A) an unaudited consolidated balance sheet
                           of the Company and its consolidated subsidiaries as
                           at the end of such quarter, and

                                    (B) unaudited consolidated statements of
                           earnings and cash flows of the Company and its
                           consolidated subsidiaries for such quarter and (in
                           the case of the second and third quarters) for the
                           portion of the fiscal year ending with such quarter,

                  setting forth in each case in comparative form the
                  corresponding figures for the corresponding periods in the
                  previous fiscal year, and certified by a principal financial
                  officer of the Company that said financial statements fairly
                  present the consolidated financial condition and results of
                  operations and cash flows of the Company and its consolidated
                  subsidiaries, in accordance with GAAP consistently applied, as
                  at the end of, and for, such period (subject to normal
                  year-end adjustments), and accompanied by the certificate
                  required by Section 0; and

                           (ii) Annual Statements -- as soon as practicable
                  after the end of each fiscal year of the Company, and in any
                  event within one hundred twenty (120) days thereafter:


                                       36
<PAGE>   41
                                    (A) a consolidated balance sheet of the
                           Company and its consolidated subsidiaries as at the
                           end of such year, and

                                    (B) consolidated statements of earnings,
                           changes in stockholders' equity and cash flows of the
                           Company and its consolidated subsidiaries for such
                           year,

                  setting forth in each case in comparative form the
                  corresponding figures for the previous fiscal year, and
                  accompanied by

                                    (1) an opinion thereon of the accountants
                           named in Section 0(a) or other independent certified
                           public accountants of recognized national standing
                           selected by the Company, which opinion shall, without
                           qualification, state that such financial statements
                           present fairly, in all material respects, the
                           financial position of the companies being reported
                           upon and their results of operations and cash flows
                           and have been prepared in conformity with GAAP, and
                           that the examination of such accountants in
                           connection with such financial statements has been
                           made in accordance with generally accepted auditing
                           standards, and that such audit provides a reasonable
                           basis for such opinion,

                                    (2) a certification by a principal financial
                           officer of the Company that such consolidated
                           statements are complete and correct in all material
                           respects,

                                    (3) the certificates required by Section 0
                           and Section 0, and

                                    (4) such other information as may be
                           reasonably be requested by any holder of Notes.

                  (c) INFORMATION AS TO THE PARENT AND THE COMPANY.

                  The Parent and the Company shall deliver to each holder of
Notes:

                           (i) AUDIT REPORTS -- promptly upon receipt thereof, a
                  copy of each report submitted to the Company or SPHI by
                  independent accountants in connection with any annual, interim
                  or special audit made by them of the books of the Company or
                  SPHI;

                           (ii) SEC AND OTHER REPORTS -- promptly upon their
                  becoming available, one copy of each financial statement,
                  report, notice or proxy statement sent by the Parent, the
                  Company or any Subsidiary to stockholders generally, and of
                  each regular or periodic report and any registration
                  statement, prospectus or written communication (other than
                  transmittal letters), and each amendment thereto, in 


                                       37
<PAGE>   42
                  respect thereof filed by the Parent, the Company or any
                  Subsidiary with, or received by, such Person in connection
                  therewith from, the National Association of Securities
                  Dealers, any securities exchange or the Securities and
                  Exchange Commission or any successor agency;

                           (iii) ERISA -- promptly upon becoming aware of the
                  occurrence of any

                                    (A) "reportable event" (as such term is
                           defined in section 4043 of ERISA) and the regulations
                           thereunder, for which notice thereof has not been
                           waived pursuant to such regulations, or

                                    (B) "prohibited transactions" (as such term
                           is defined in section 406 or section 4975 of the IRC)

                  in connection with any Pension Plan or any trust created
                  thereunder if the liability to the Parent, the Company or any
                  ERISA Affiliate, taken together with any other such
                  liabilities could reasonably be expect to have a Material
                  Adverse Effect, a written notice specifying the nature
                  thereof, what action the Parent or the Company, as the case
                  may be, is taking or proposes to take with respect thereto,
                  and, when known, any action taken by the IRS, the DOL or the
                  PBGC with respect thereto;

                           (iv) ERISA WAIVERS -- prompt written notice of and a
                  description of any request pursuant to section 303 of ERISA or
                  section 412 of the IRC for, or notice of the granting pursuant
                  to said section 303 or section 412 of, a waiver in respect of
                  all or part of the minimum funding standard set forth in ERISA
                  or the IRC, as the case may be, of any Pension Plan, and, in
                  connection with the granting of any such waiver, the amount of
                  any waived funding deficiency (as such term is defined in said
                  section 303 or said section 412) and the terms of such waiver,
                  in each of the cases specified in this clause (iv), where the
                  effect of such conditions or events or of events or conditions
                  related thereto would reasonably be expected to have a
                  Material Adverse Effect;

                           (v) OTHER ERISA NOTICES -- prompt written notice of
                  and, where applicable, a description of

                                    (A) any notice from the PBGC in respect of
                           the commencement of any proceedings pursuant to
                           section 4042 of ERISA to terminate any Pension Plan
                           or for the appointment of a trustee to administer any
                           Pension Plan,

                                    (B) any distress termination notice
                           delivered to the PBGC under section 4041 of ERISA in
                           respect of any Pension Plan, and any determination of
                           the PBGC in respect thereof,

                                    (C) the placement of any Multiemployer Plan
                           in reorganization


                                       38
<PAGE>   43
                           status under Title IV of ERISA,

                                    (D) any Multiemployer Plan becoming
                           "insolvent" (as such term is defined in section 4245
                           of ERISA) under Title IV of ERISA,

                                    (E) the whole or partial withdrawal of the
                           Parent or the Company or any ERISA Affiliate from any
                           Multiemployer Plan and the withdrawal liability
                           incurred in connection therewith, and

                                    (F) the withdrawal of the Parent or the
                           Company or any ERISA Affiliate from any Multiple
                           Employer Pension Plan and the withdrawal liability
                           under ERISA incurred in connection therewith;

                  and, in each of the cases specified in this clause (v), where
                  the effect of any such notice, condition or event or of any
                  event or condition related thereto would reasonably be
                  expected to have a Material Adverse Effect;

                           (vi) NOTICE OF DEFAULT OR EVENT OF DEFAULT -- within
                  five (5) Business Days of becoming aware of the existence of
                  any condition or event which constitutes a Default or an Event
                  of Default, a written notice specifying the nature and period
                  of existence thereof and what action the Parent or the
                  Company, as the case may be, is taking or proposes to take
                  with respect thereto;

                           (vii) NOTICE OF CLAIMED DEFAULT -- within five (5)
                  Business Days of becoming aware that the holder of any Note,
                  or of any evidence of Indebtedness or other Security of the
                  Parent, the Company or SPHI, shall have given notice or taken
                  any other action with respect to a claimed Default, Event of
                  Default, default or event of default, a written notice
                  specifying the notice given or action taken by such holder and
                  the nature of the claimed Default, Event of Default, default
                  or event of default and what action the Parent or the Company,
                  as the case may be, is taking or proposes to take with respect
                  thereto;

                           (viii) ACTIONS, PROCEEDINGS -- promptly after the
                  commencement thereof, notice of any action or proceeding
                  relating to the Parent, the Company or any Subsidiary in any
                  court or before any Governmental Authority or arbitration
                  board or tribunal as to which there is a reasonable
                  possibility of an adverse determination and that, if adversely
                  determined, would have a Material Adverse Effect;

                           (ix) CERTAIN ENVIRONMENTAL MATTERS -- prompt written
                  notice of and a description of any event or circumstance that,
                  had such event or circumstance occurred or existed immediately
                  prior to the Closing Date, would have been required to be
                  disclosed as an exception to any statement set forth in
                  Section 2.14; and


                                       39
<PAGE>   44
                           (x) REQUESTED INFORMATION -- with reasonable
                  promptness, such other data and information as from time to
                  time may be reasonably requested by any holder of Notes,
                  including, without limitation,

                                    (A) copies of any statement, report or
                           certificate furnished to any holder of any
                           Indebtedness or any Security of the Parent, the
                           Company or SPHI,

                                    (B) information requested to comply with any
                           request of the National Association of Insurance
                           Commissioners in respect of the designation of the
                           Notes,

                                    (C) information requested to comply with 
                           17 C.F.R. Section 230.144A, as amended from time
                           to time,

                                    (D) information regarding the impact of the
                           occurrence of the year 2000 on the Parent, the
                           Company and its Significant Subsidiaries and plans of
                           the Company to address any such impact;

                  provided that any such request with respect to any of the data
                  and information referred to in the foregoing clauses (A), (B),
                  (C) and (D) shall be deemed to be reasonable for purposes of
                  this Section 8.1(c)(x).

         8.2      OFFICERS' CERTIFICATES.

         Each set of financial statements delivered to each holder of Notes
pursuant to Section 0(a) or Section 0(b) shall be accompanied by a certificate
of the President or a Vice-President and the Treasurer or an Assistant Treasurer
of the Parent (in the case of statements delivered pursuant to Section 8.1(a))
or the Company (in the case of statements delivered pursuant to Section 8.1(b)),
setting forth:

                  (a) COVENANT COMPLIANCE -- the information (including detailed
         calculations) required in order to establish whether the Parent or the
         Company, as the case may be, was in compliance with the requirements of
         Section 7.6 through Section 7.10, inclusive, during the period covered
         by the earnings statement then being furnished (including with respect
         to each such Section, where applicable, the calculations of the maximum
         or minimum amount, ratio or percentage, as the case may be, permissible
         under the terms of such Sections, and the calculation of the amounts,
         ratio or percentage then in existence);

                  (b) EVENT OF DEFAULT -- a statement that the signers have
         reviewed the relevant terms hereof and have made, or caused to be made,
         under their supervision, a review of the transactions and conditions of
         the Parent, the Company and SPHI from the beginning of the accounting
         period covered by the earnings statements being delivered therewith to
         the date of the certificate and that such review did not disclose the
         existence during such period of any condition or event which
         constitutes a Default or an Event of Default or, if any 


                                       40
<PAGE>   45
         such condition or event existed or exists, specifying the nature and
         period of existence thereof and what action the Parent or the Company,
         as the case may be, has taken or proposes to take with respect thereto;
         and

                  (c) REAL ESTATE ASSETS -- in the case of certificates of the
         officers of the Company, a complete and correct list of each of the
         Real Estate Assets and the Designated Disposition Value with respect
         thereto, in each case as at the date of such certificate, together with
         a detailed calculation and explanation of each reduction in the
         Designated Disposition Value of any Real Estate Asset effected during
         such period and the "Pro-Rata Basis" on which such reduction shall have
         been made. If, at any time within sixty (60) days after receipt by the
         holders of the Notes of any certificate containing information required
         by this clause (c), the holders of at least fifty percent (50%) in
         principal amount of the Notes (exclusive of Notes held by any one or
         more of the Parent, the Company, any Subsidiary and any Affiliate) at
         the time outstanding shall disagree with the reduction in the
         Designated Disposition Value of any Real Estate Asset effected during
         the period covered by such certificate, the Company shall, in its
         discretion, either (i) adjust such reduction to the satisfaction of
         such holders or (ii) employ, at the expense of the Company, an
         independent appraiser satisfactory to such holders to determine the
         appropriate Pro-Rata Basis of such reduction. Any such determination by
         an independent appraiser shall be binding upon the Company and the
         holders of the Notes.

         8.3      ACCOUNTANTS' CERTIFICATES.

         Each set of annual financial statements delivered pursuant to Section
0(b)(ii) shall be accompanied by a certificate of the accountants who certify
such financial statements, stating that they have reviewed Section 7.1 through
Section 7.14, inclusive, of this Agreement insofar as such Sections relate to
accounting matters and stating further, whether, in making their audit, such
accountants have become aware of any condition or event which then constitutes a
Default or an Event of Default, and, if such accountants are aware that any such
condition or event then exists, specifying the nature and period of existence
thereof, provided that nothing in this Section 8.3 shall obligate such
accountants to review any Section of this Agreement other than the aforesaid
Section 7.1 through Section 7.14 and the related definitions.

         8.4      INSPECTION.

                  (a) PARENT, COMPANY AND SPHI. The Parent and the Company shall
         permit the representatives of each holder of Notes, at the expense of
         such holder (or, if a Default or Event of Default shall exist at such
         time, at the expense of the Company) to visit and inspect any of the
         Properties of the Parent, the Company or SPHI to examine all their
         respective books of account, records, reports and other papers, to make
         copies and extracts therefrom, and to discuss their respective affairs,
         finances and accounts with their respective officers, employees and
         independent public accountants (and by this provision the Parent and
         the Company authorize said accountants to discuss the finances and
         affairs of the Parent, the Company and SPHI) all at such reasonable
         times and as often as may be reasonably requested.


                                       41
<PAGE>   46
                  (b) OTHER SUBSIDIARIES. The Parent shall use its best efforts
         to provide the representatives of each holder of Notes, at the expense
         of such holder (or, if a Default or Event of Default shall exist at
         such time, at the expense of the Company) access to and inspection of
         the Properties of each other Subsidiary to examine such Subsidiary's
         books of account, records, reports and other papers, to make copies and
         extracts therefrom, and to discuss such Subsidiary's affairs, finances
         and accounts with such Subsidiary's officers, employees and independent
         public accountants (and by this provision the Parent authorizes said
         accountants to discuss the finances and affairs of the Subsidiaries)
         all at such reasonable times and as often as may be reasonably
         requested.

         8.5      CONFIDENTIAL INFORMATION.

         For the purposes of this Section 8.5, "Confidential Information" means
information delivered to you by or on behalf of the Parent, the Company or any
Subsidiary in connection with the transactions contemplated by or otherwise
pursuant to this Agreement that is proprietary in nature and that was clearly
marked or labeled or otherwise adequately identified when received by you as
being confidential information of the Parent, the Company or such Subsidiary,
provided that such term does not include information that

                  (a) was publicly known or otherwise known to you prior to the
         time of such disclosure,

                  (b) subsequently becomes publicly known through no act or
         omission by you or any Person acting on your behalf,

                  (c) otherwise becomes known to you other than through
         disclosure by the Parent, the Company or any Subsidiary or

                  (d) constitutes financial statements delivered to you under
         Section 8.1 that are otherwise publicly available.

You will maintain the confidentiality of such Confidential Information in
accordance with procedures adopted by you in good faith to protect confidential
information of third parties delivered to you, provided that you may deliver or
disclose Confidential Information to

                           (i) your directors, officers, employees, agents,
                  attorneys and affiliates (to the extent such disclosure
                  reasonably relates to the administration of the investment
                  represented by your Notes) who agree to hold confidential the
                  Confidential Information substantially in accordance with the
                  terms of this Section 8.5 to the extent contemplated by such
                  confidentiality procedures,

                           (ii) your financial advisors and other professional
                  advisors who agree to hold confidential the Confidential
                  Information substantially in accordance with the terms of this
                  Section 8.5,


                                       42
<PAGE>   47
                           (iii) any other holder of any Note,

                           (iv) any Institutional Investor to which you sell or
                  offer to sell your Notes or any part thereof or any
                  participation therein (if such Person has agreed in writing
                  prior to its receipt of such Confidential Information to be
                  bound by the provisions of this Section 8.5),

                           (v) any Person from which you offer to purchase any
                  Security of the Parent, the Company or any Subsidiary (if such
                  Person has agreed in writing prior to its receipt of such
                  Confidential Information to be bound by the provisions of this
                  Section 8.5),

                           (vi) any federal or state regulatory authority having
                  jurisdiction over you,

                           (vii) the National Association of Insurance
                  Commissioners or any similar organization, or any nationally
                  recognized rating agency that requires access to information
                  about your investment portfolio or

                           (viii) any other Person to which such delivery or
                  disclosure may be necessary or appropriate

                                    (A) to effect compliance with any law, rule,
                           regulation or order applicable to you,

                                    (B) in response to any subpoena or other
                           legal process,

                                    (C) in connection with any litigation to
                           which you are a party or

                                    (D) if an Event of Default has occurred and
                           is continuing, to the extent you may reasonably
                           determine such delivery and disclosure to be
                           necessary or appropriate in the enforcement or for
                           the protection of the rights and remedies under your
                           Notes and this Agreement.

Each holder of a Note, by its acceptance of a Note, will be deemed to have
agreed to be bound by and to be entitled to the benefits of this Section 8.5 as
though it were a party to this Agreement. On reasonable request by the Company
in connection with the delivery to any holder of a Note of information required
to be delivered to such holder under this Agreement or requested by such holder
(other than a holder that is a party to this Agreement or its nominee), such
holder will enter into an agreement with the Parent and the Company embodying
the provisions of this Section 8.5.

9.       EVENTS OF DEFAULT



                                       43
<PAGE>   48
         9.1      NATURE OF EVENTS.

         An "Event of Default" shall exist if any of the following occurs and is
continuing:

                  (a) PRINCIPAL OR MAKE-WHOLE AMOUNT PAYMENTS -- the Company
         shall fail to make any payment of principal or Make-Whole Amount on any
         Note on or before the date such payment is due or the Company shall
         fail to comply with any of its obligations set forth in Section 5.3;

                  (b) INTEREST PAYMENTS -- the Company shall fail to make any
         payment of interest on any Note on or before five (5) Business Days
         after the date such payment is due;

                  (c) PARTICULAR COVENANT DEFAULTS -- the Parent, the Company or
         SPHI shall fail to perform or observe any covenant contained in Section
         7.6 through Section 7.13, inclusive, or in Section 0(c)(vi) or Section
         0(c)(vii);

                  (d) OTHER DEFAULTS -- the Parent, the Company or SPHI shall
         fail to comply with any other provision hereof and such failure shall
         continue for more than thirty (30) days after the date on which such
         failure shall first become known to any officer of the Parent or the
         Company;

                  (e) WARRANTIES OR REPRESENTATIONS -- any warranty,
         representation or other statement by or on behalf of the Parent or the
         Company contained herein or in any document or instrument furnished in
         compliance with or in reference hereto shall have been false or
         misleading in any material respect when made;

                  (f) DEFAULT ON INDEBTEDNESS OR SECURITY --

                           (i) the Parent, the Company or SPHI shall fail to
                  make any payment on any Indebtedness or any Security at final
                  maturity, or

                           (ii) any event shall occur or any condition shall
                  exist in respect of any Indebtedness or any Security of the
                  Parent, the Company or SPHI, or under any agreement securing
                  or relating to any such Indebtedness or Security, that has
                  caused the holders of such Indebtedness or Security, or a
                  portion thereof, to accelerate the payment of such
                  Indebtedness or Security prior to its stated maturity or prior
                  to its regularly scheduled date or dates of payment,

         provided that the aggregate amount of all obligations in respect of all
         such Indebtedness and Securities referred to in this clause (f) exceeds
         at such time Five Million Dollars ($5,000,000);

                  (g)      INVOLUNTARY BANKRUPTCY PROCEEDINGS --


                                       44
<PAGE>   49
                           (i) a receiver, liquidator, custodian or trustee of
                  the Parent, the Company, or SPHI, or of all or any of the
                  Property of any of the foregoing, shall be appointed by court
                  order and such order remains in effect for more than thirty
                  (30) days; or an order for relief shall be entered with
                  respect to the Parent, the Company or SPHI, or the Parent, the
                  Company or SPHI shall be adjudicated a bankrupt or insolvent;
                  or

                           (ii) any of the Real Estate Assets shall be
                  sequestered by court order and such order remains in effect
                  for more than thirty (30) days (provided that the temporary
                  inability of the Company or SPHI to enforce its rights with
                  respect to any Real Estate Loan resulting from the operation
                  of the automatic stay in connection with bankruptcy
                  proceedings of the related obligor on such Real Estate Loan
                  shall not be deemed to be a sequestration of such Real Estate
                  Loan), or any other Property of the Parent, the Company or
                  SPHI shall be sequestered by court order and such order
                  remains in effect for more than thirty (30) days and the
                  sequestration of such Property could reasonably be expected to
                  have a Material Adverse Effect; or

                           (iii) a petition shall be filed against the Parent,
                  the Company or SPHI under any bankruptcy, reorganization,
                  arrangement, insolvency, readjustment of debt, dissolution or
                  liquidation law of any jurisdiction, whether now or hereafter
                  in effect, and shall not be dismissed within thirty (30) days
                  after such filing;

                  (h) VOLUNTARY PETITIONS -- the Parent, the Company or SPHI
         shall file a petition in voluntary bankruptcy or seeking relief under
         any provision of any bankruptcy, reorganization, arrangement,
         insolvency, readjustment of debt, dissolution or liquidation law of any
         jurisdiction, whether now or hereafter in effect, or shall consent to
         the filing of any petition against it under any such law, excluding any
         such filing for the purpose of a reconstruction, reorganization,
         merger, consolidation or other arrangement on terms approved, prior to
         such filing, by the holders of at least fifty percent (50%) in
         principal amount of the Notes (exclusive of Notes held by any one or
         more of the Parent, the Company, any Subsidiary and any Affiliate) at
         the time outstanding;

                  (i) ASSIGNMENTS FOR BENEFIT OF CREDITORS, ETC. -- the Parent,
         the Company or SPHI shall make an assignment for the benefit of its
         creditors, or shall admit in writing its inability, or fails, to pay
         its debts generally as they become due, or shall consent to the
         appointment of a receiver, liquidator or trustee of the Parent, the
         Company or SPHI or of all or any part of the Property of the Parent,
         the Company or SPHI; or

                  (j) UNDISCHARGED FINAL JUDGMENTS -- a final judgment or final
         judgments for the payment of money aggregating in excess of One Million
         Dollars ($1,000,000) shall be outstanding against one or more of the
         Parent, the Company and SPHI and any one of such judgments shall have
         been outstanding for more than sixty (60) days from the date of its
         entry and shall not have been stayed or discharged in full, provided
         that the calculation 


                                       45
<PAGE>   50
         of the aforesaid One Million Dollars ($1,000,000) shall exclude any
         final judgment to the extent, but only to the extent, such judgment
         will be covered by payments from insurance maintained by the Parent,
         the Company or SPHI and

                           (i) the issuer of such insurance has agreed, in
                  writing, to make such payment in respect of such judgment or

                           (ii) if the issuer of such insurance has not agreed
                  to make such payment in respect of such judgment,

                                    (A) the liability of such issuer to make
                           such payment is being contested in good faith by
                           appropriate proceedings,

                                    (B) adequate reserves have been established
                           in respect of such judgment and

                                    (C) nonpayment of such judgment could not
                           reasonably be expected to have a Material Adverse
                           Effect.

         9.2      DEFAULT REMEDIES.

                  (a)      ACCELERATION ON EVENT OF DEFAULT.

                           (i) If an Event of Default specified in clause (g),
                  clause (h) or clause (i) of Section 0 shall exist, all of the
                  Notes at the time outstanding shall automatically become
                  immediately due and payable together with interest accrued
                  thereon and, to the extent permitted by law, the Make-Whole
                  Amount at such time with respect to the principal amount of
                  such Notes, without presentment, demand, protest or notice of
                  any kind, all of which are hereby expressly waived.

                           (ii) If an Event of Default other than those
                  specified in clause (g), clause (h) and clause (i) of Section
                  0 shall exist, the Required Holders may exercise any right,
                  power or remedy permitted to such holder or holders by law,
                  and shall have, in particular, without limiting the generality
                  of the foregoing, the right to declare the entire principal
                  of, and all interest accrued on, all the Notes then
                  outstanding to be, and such Notes shall thereupon become,
                  forthwith due and payable, without any presentment, demand,
                  protest or other notice of any kind, all of which are hereby
                  expressly waived, and the Company shall forthwith pay to the
                  holder or holders of all the Notes then outstanding the entire
                  principal of, and interest accrued on, the Notes and, to the
                  extent permitted by law, the Make-Whole Amount at such time
                  with respect to such principal amount of such Notes.

                  (b) ACCELERATION ON PAYMENT DEFAULT. During the existence of
         an Event of Default described in Section 0(a) or Section 0(b), and
         irrespective of whether the Notes then outstanding shall have been
         declared to be due and payable pursuant to Section 


                                       46
<PAGE>   51
         0(a)(ii), any holder of Notes that shall have not consented to any
         waiver with respect to such Event of Default may, at such holder's
         option, by notice in writing to the Company, declare the Notes then
         held by such holder to be, and such Notes shall thereupon become,
         forthwith due and payable together with all interest accrued thereon,
         without any presentment, demand, protest or other further notice of any
         kind, all of which are hereby expressly waived, and the Company shall
         forthwith pay to such holder the entire principal of and interest
         accrued on such Notes and, to the extent permitted by law, the
         Make-Whole Amount at such time with respect to such principal amount of
         such Notes.

                  (c) VALUABLE RIGHTS. The Company acknowledges, and the parties
         hereto agree, that the right of each holder to maintain its investment
         in the Notes free from repayment by the Company (except as herein
         specifically provided for) is a valuable right and that the provision
         for payment of a Make-Whole Amount by the Company in the event that the
         Notes are prepaid or are accelerated as a result of an Event of
         Default, is intended to provide compensation for the deprivation of
         such right under such circumstances.

                  (d) OTHER REMEDIES. During the existence of an Event of
         Default and irrespective of whether the Notes then outstanding shall
         have been declared to be due and payable pursuant to Section 0(a)(ii)
         and irrespective of whether any holder of Notes then outstanding shall
         otherwise have pursued or be pursuing any other rights or remedies, any
         holder of Notes may proceed to protect and enforce its rights hereunder
         and under such Notes by exercising such remedies as are available to
         such holder in respect thereof under applicable law, either by suit in
         equity or by action at law, or both, whether for specific performance
         of any agreement contained herein or in aid of the exercise of any
         power granted herein, provided that the maturity of such holder's Notes
         may be accelerated only in accordance with Section 0(a) and Section
         0(b).

                  (e) NONWAIVER AND EXPENSES. No course of dealing on the part
         of any holder of Notes nor any delay or failure on the part of any
         holder of Notes to exercise any right shall operate as a waiver of such
         right or otherwise prejudice such holder's rights, powers and remedies.
         If the Company shall fail to pay when due any principal of, or
         Make-Whole Amount or interest on, any Note, or shall fail to comply
         with any other provision hereof, the Company shall pay to each holder
         of Notes, to the extent permitted by law,

                           (i) such further amounts as shall be sufficient to
                  cover the costs and expenses, including but not limited to
                  reasonable attorneys' fees and expenses, incurred by such
                  holder in collecting any sums due on such Notes, and

                           (ii) all expenses incurred by any holder of Notes in
                  connection with the enforcement, assessment or analysis of any
                  rights under this Agreement and the Notes and any rights or
                  remedies that are or may be available to such holder
                  (including in each such case, without limitation, all
                  reasonable attorneys' and financial advisors' fees and
                  expenses and the allocated reasonable cost of such holder's
                  counsel who are its employees or its affiliates' employees).


                                       47
<PAGE>   52
         9.3      ANNULMENT OF ACCELERATION OF NOTES.

         If a declaration is made pursuant to Section 0(a)(ii), then and in
every such case, the Required Holders may, by written instrument filed with the
Company, rescind and annul such declaration, and the consequences thereof,
provided that at the time such declaration is annulled and rescinded:

                  (a) no judgment or decree shall have been entered for the
         payment of any moneys due on or pursuant hereto or the Notes;

                  (b) all arrears of interest upon all the Notes and all other
         sums payable hereunder and under the Notes (except any principal of, or
         interest or Make-Whole Amount on, the Notes which shall have become due
         and payable by reason of such declaration under Section 0(a)(ii)) shall
         have been duly paid; and

                  (c) each and every other Default and Event of Default shall
         have been waived pursuant to Section 0 or otherwise made good or cured,

and provided further that no such rescission and annulment shall extend to or
affect any subsequent Default or Event of Default or impair any right consequent
thereon.

10.      INTERPRETATION OF THIS AGREEMENT

         10.1     TERMS DEFINED.

         As used herein, the following terms have the respective meanings set
forth below or set forth in the Section hereof following such term:

                  AFFILIATE -- means, at any time, the Parent and any other
         Person (other than SPHI)

                           (a) for the purposes of Section 5.6, Section 8.2(c),
                  Section 9.1(h), the definition of "Required Holders" in
                  Section 10.1, Section 11.5(a) and Section 11.5(b)(iii),

                                            (i) that directly or indirectly
                           through one or more intermediaries controls, or is
                           controlled by, or is under common control with, the
                           Parent or the Company,

                                            (ii) that beneficially owns or holds
                           five percent (5%) or more of any class of the Voting
                           Stock of the Parent or the Company, or

                                            (iii) five percent (5%) or more of
                           the Voting Stock (or in the case of a Person that is
                           not a corporation, five percent (5%) or more of the
                           equity interest) of which is beneficially owned or
                           held by the Parent, the Company or a Subsidiary,


                                       48
<PAGE>   53
                  at such time, and

                           (b) for the purposes of Section 2.3, Section 7.12 and
                  as otherwise used in this Agreement,

                                            (i) that directly or indirectly
                           through one or more intermediaries controls, or is
                           controlled by, or is under common control with, the
                           Company,

                                            (ii) that beneficially owns or holds
                           five percent (5%) or more of any class of the Voting
                           Stock of the Company, or

                                            (iii) five percent (5%) or more of
                           the Voting Stock (or in the case of a Person that is
                           not a corporation, five percent (5%) or more of the
                           equity interest) of which is beneficially owned or
                           held by the Company,

                  at such time.

         As used in this definition,

                           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 the
                  ownership of voting securities, by contract or otherwise.

                  AGREEMENT, THIS -- means this agreement, as it may be amended
         and restated from time to time.

                  BUSINESS DAY -- means, at any time, a day other than a
         Saturday, a Sunday or, in the case of any Note with respect to which
         the provisions of Section 0 are applicable, a day on which the bank
         designated (by the holder of such Note) to receive (for such holder's
         account) payments on such Note is required by law (other than a general
         banking moratorium or holiday for a period exceeding four (4)
         consecutive days) to be closed.

                  CAPITAL LEASE -- means, at any time, a lease with respect to
         which the lessee is required to recognize the acquisition of an asset
         and the incurrence of a liability at such time.

                  CLOSING -- Section 0.

                  CLOSING DATE -- Section 0.

                  COMPANY -- has the meaning specified in the introductory
         sentence.

                  CONFIDENTIAL INFORMATION -- Section 8.5.


                                       49
<PAGE>   54
                  CONSOLIDATED NET WORTH -- means, at any time, total
         stockholders' equity as would be shown on a consolidated balance sheet
         of the Parent and the Subsidiaries at such time, determined on a
         consolidated basis for such Persons in accordance with GAAP.

                  CONTRIBUTIONS -- means cash contributions made by the Parent
         to the capital of the Company after the Closing Date.

                  CUMULATIVE NON-ESSENTIAL CONTRIBUTIONS -- means, at any time,
         the aggregate of all Contributions (other than Operating Expense
         Contributions or Contributions directly or indirectly utilized to
         enable the Company to pay principal, interest, Make-Whole Amount or
         other amounts due in respect of the Notes) at or prior to such time.

                  CUMULATIVE OPERATING EXPENSES -- means, at any time, the
         aggregate amount of Operating Expenses of the Company and SPHI,
         determined on a consolidated basis for such Persons, paid, or due and
         payable, from and including the Closing Date to such time.

                  DEFAULT -- means an event or condition the occurrence of which
         would, with the lapse of time or the giving of notice or both, become
         an Event of Default.

                  DESIGNATED DISPOSITION VALUE -- means, at any time, with
         respect to each Real Estate Asset, the amount set forth on Annex 4
         pertaining to such Real Estate Asset, adjusted as follows: the
         Designated Disposition Value shall, subject to the provisions of
         Section 8.2(c), be reduced

                           (a) with respect to any Real Estate Property, on a
                  Pro-Rata Basis in the event that a portion or portions of such
                  Real Estate Property shall have been sold at or prior to such
                  time, or

                           (b) with respect to any Real Estate Loan, on a
                  dollar-for-dollar basis to the extent that principal
                  reductions shall have been made on such Real Estate Loan at or
                  prior to such time;

         provided that in the case of any Real Estate Loan made by the Company
         or SPHI in the form of a Seller Note, the net book value (determined in
         accordance with GAAP) of such Seller Note shall in all cases be deemed
         to be its Designated Disposition Value. As used herein, the term
         "Pro-Rata Basis" means, with respect to any portion of any Real Estate
         Property sold, the relationship of such portion sold to the portion
         retained by the Company on a basis which is reasonably related to the
         respective fair market values of the portions sold and retained at the
         time of such sale, provided that the sum of the Designated Disposition
         Value assigned to the portion sold plus the Designated Disposition
         Value assigned the portion retained shall equal the Designated
         Disposition Value of such Real Estate Property prior to adjustment.

                  DOL -- means the Department of Labor and any successor agency.


                                       50
<PAGE>   55
                  DOWNGRADE EVENT -- means the existence or occurrence of any
         one or more of the following conditions:

                           (a) the Parent shall have senior unsecured debt
                  obligations with an actual credit rating of lower than "BBB-"
                  by S&P or lower than "Baa3" by Moody's,

                           (b) the Parent shall have subordinated unsecured debt
                  obligations with an actual credit rating of lower than "BB+"
                  by S&P or lower than "Ba1" by Moody's or

                           (c) the Parent shall fail to have any unsecured debt
                  obligations with a credit rating issued by S&P or Moody's,
                  unless

                                    (i) the Company shall have obtained, and
                           shall maintain on an ongoing basis, at its expense,
                           private letter ratings of the Notes of at least
                           "BBB-" from S&P and of at least "Baa3" from Moody's,
                           or an Issuer Credit Rating (or a comparable rating)
                           of the Parent of at least "BBB-" from S&P and an
                           Issuer Rating (or a comparable rating) of the Parent
                           of at least "Baa3" from Moody's and

                                    (ii) Consolidated Net Worth shall, at all
                           times, be at least Eight Hundred Million Dollars
                           ($800,000,000).

                  DOWNGRADE PREPAYMENT DATE -- Section 5.3(a).

                  ENVIRONMENTAL PROTECTION LAW -- means any federal, state,
         county, regional or local law, statute, or regulation (including,
         without limitation, CERCLA, RCRA and SARA) enacted in connection with
         or relating to the protection or regulation of the environment,
         including, without limitation, those laws, statutes, and regulations
         regulating the disposal, removal, production, storing, refining,
         handling, transferring, processing, or transporting of Hazardous
         Substances, and any regulations, issued or promulgated in connection
         with such statutes by any Governmental Authority and any orders,
         decrees or judgments issued by any court of competent jurisdiction in
         connection with any of the foregoing.

         As used in this definition:

                           CERCLA -- means the Comprehensive Environmental
                  Response, Compensation, and Liability Act of 1980, as amended
                  from time to time (by SARA or otherwise), and all rules and
                  regulations promulgated in connection therewith;

                           RCRA -- means the Resource Conservation and Recovery
                  Act of 1976, as amended, and any rules and regulations issued
                  in connection therewith; and

                           SARA -- means the Superfund Amendments and
                  Reauthorization Act of 1986, as amended from time to time, and
                  all rules and regulations promulgated


                                       51
<PAGE>   56
                  in connection therewith.

                  ERISA -- means the Employee Retirement Income Security Act of
         1974, as amended from time to time.

                  ERISA AFFILIATE -- means any corporation or trade or business
         that

                           (a) is a member of the same controlled group of
                  corporations (within the meaning of section 414(b) of the IRC)
                  as the Parent or the Company,

                           (b) is under common control (within the meaning of
                  section 414(c) of the IRC) with the Parent or the Company,

                           (c) is a member of the same affiliated service group
                  (within the meaning of section 414(m) of the IRC) as the
                  Parent or the Company, or

                           (d) is combined or otherwise aggregated with the
                  Parent or the Company pursuant to regulations issued under
                  section 414(o) of the IRC.

                  EVENT OF DEFAULT -- Section 0.

                  EXCESS CUMULATIVE NET PROCEEDS -- means, at any time, an
         amount equal to the result of

                           (a) the aggregate net cash proceeds received by the
                  Company and SPHI from all Real Estate Assets sold, paid down
                  or repaid at or prior to such time minus

                           (b) the aggregate of the Designated Disposition
                  Values for such Real Estate Assets, in each case determined as
                  of the date of sale, pay down or repayment of such Real Estate
                  Asset.

                  FINANCING DOCUMENTS -- means the Note Purchase Agreements, the
         Notes, and any other agreements and instruments to be executed pursuant
         to the terms of each of such documents, as each may be amended from
         time to time.

                  FOREIGN PENSION PLAN -- means any plan, fund or other similar
         program

                           (a) established or maintained outside of the United
                  States of America by any one or more of the Parent, the
                  Company or the Subsidiaries primarily for the benefit of the
                  employees (substantially all of whom are aliens not residing
                  in the United States of America) of the Parent, the Company or
                  such Subsidiaries which plan, fund or other similar program
                  provides for retirement income for such employees or results
                  in a deferral of income for such employees in contemplation of
                  retirement and


                                       52
<PAGE>   57
                           (b) not otherwise subject to ERISA.

                  GAAP -- means accounting principles as promulgated from time
         to time in statements, opinions and pronouncements by the American
         Institute of Certified Public Accountants and the Financial Accounting
         Standards Board and in such statements, opinions and pronouncements of
         such other entities with respect to financial accounting of for-profit
         entities as shall be accepted by a substantial segment of the
         accounting profession in the United States.

                  GOVERNMENTAL AUTHORITY -- means

                           (a) the government of

                                    (i) the United States of America and any
                           state or other political subdivision thereof, or

                                    (ii) any jurisdiction (y) in which the
                           Parent, the Company or any Subsidiary conducts all or
                           any part of its business or (z) that asserts
                           jurisdiction over the conduct of the affairs or
                           Properties of the Parent, the Company or any
                           Subsidiary, and

                           (b) any entity exercising executive, legislative,
                  judicial, regulatory or administrative functions of, or
                  pertaining to, any such government.

                  GUARANTY -- means with respect to any Person (for the purposes
         of this definition, the "Guarantor") any obligation (except the
         endorsement in the ordinary course of business of negotiable
         instruments for deposit or collection) of such Person guaranteeing or
         in effect guaranteeing (including, without limitation, by means of a
         surety bond, letter of credit or other similar instrument, whether or
         not designated as a "guaranty") any indebtedness, dividend or other
         obligation of any other Person (the "Primary Obligor") in any manner,
         whether directly or indirectly, including, without limitation,
         obligations incurred through an agreement, contingent or otherwise, by
         the Guarantor:

                           (a) to purchase such indebtedness or obligation or
                  any Property or assets constituting security therefor;

                           (b) to advance or supply funds

                                    (i) for the purpose of payment of such
                           indebtedness or obligation, or

                                    (ii) to maintain working capital or other
                           balance sheet condition, statement of financial
                           condition or any income statement condition of the
                           Primary Obligor or otherwise to advance or make
                           available funds for the 


                                       53
<PAGE>   58
                           purchase or payment of such indebtedness or
                           obligation;

                           (c) to lease Property or to purchase Securities or
                  other Property or services primarily for the purpose of
                  assuring the owner of such indebtedness or obligation of the
                  ability of the Primary Obligor to make payment of the
                  indebtedness or obligation; or

                           (d) otherwise to assure the owner of the indebtedness
                  or obligation of the Primary Obligor against loss in respect
                  thereof.

         For purposes of computing the amount of any Guaranty, in connection
         with any computation of indebtedness or other liability, it shall be
         assumed that the indebtedness or other liabilities that are the subject
         of such Guaranty are direct obligations of the issuer of such Guaranty.

                  HAZARDOUS SUBSTANCES -- means any and all pollutants,
         contaminants, toxic or hazardous wastes or any other substances that
         might pose a hazard to health or safety, the removal of which is
         required, or the generation, manufacture, refining, production,
         processing, treatment, storage, handling, transportation, transfer,
         use, disposal, release, discharge, spillage, seepage, or filtration of
         which is restricted, prohibited or penalized by any applicable law
         (including, without limitation, asbestos, urea formaldehyde foam
         insulation and polychlorinated biphenyls).

                  INDEBTEDNESS -- with respect to any Person means, at any time,
         without duplication,

                           (a) its liabilities for borrowed money (whether or
                  not evidenced by a Security);

                           (b) any liabilities for borrowed money secured by any
                  Lien existing on Property owned by such Person (whether or not
                  such liabilities have been assumed);

                           (c) its liabilities in respect of Capital Leases;

                           (d) the present value of all its liabilities for
                  payments due under any arrangement for retention of title or
                  any conditional sale agreement (other than a Capital Lease)
                  discounted at the implicit rate, if known, with respect
                  thereto or, if unknown, at eight percent (8%) per annum; and

                           (e) all obligations of such Person in respect of
                  Guaranties, letters of credit or instruments serving a similar
                  function and endorsements, in each case in respect of or in
                  support of the obligations of any other Person of the type set
                  forth in clause (a) through clause (d) of this definition.


                                       54
<PAGE>   59
                  INSTITUTIONAL INVESTOR -- means the Purchasers, any affiliate
         of any of the Purchasers, and any holder of Notes that is an
         "accredited investor" as defined in section 2(15) of the Securities
         Act.

                  INVESTMENT -- means any investment, made in cash or by
         delivery of Property, by the Parent, the Company or SPHI:

                           (a) in any Person, whether by acquisition of stock,
                  indebtedness or other obligation or Security, or by loan,
                  Guaranty, advance, capital contribution or otherwise, or

                           (b) in any Property.

         Investments shall be valued at cost less any net return of capital
         through the sale or liquidation thereof or other return of capital
         thereon.

                  IRC -- means the Internal Revenue Code of 1986, together with
         all rules and regulations promulgated pursuant thereto, as amended from
         time to time.

                  IRS -- means the Internal Revenue Service and any successor
         agency.

                  LIEN -- means any interest in Property securing an obligation
         owed to, or a claim by, a Person other than the owner of the Property,
         whether such interest is based on the common law, statute or contract,
         and including but not limited to the security interest lien arising
         from a mortgage, encumbrance, pledge, conditional sale or trust receipt
         or a consignment or bailment for security purposes, and the filing of
         any financing statement under the Uniform Commercial Code of any
         jurisdiction, or an agreement to give any of the foregoing. The term
         "Lien" includes reservations, exceptions, encroachments, easements,
         rights-of-way, covenants, conditions, restrictions, leases and other
         title exceptions and encumbrances affecting real property. For the
         purposes hereof, the Parent, the Company and each Subsidiary is deemed
         to be the owner of any Property that it shall have acquired or holds
         subject to a conditional sale agreement, Capital Lease or other
         arrangement pursuant to which title to the Property has been retained
         by or vested in some other Person for security purposes, and such
         retention or vesting is deemed a Lien. The term "Lien" does not include
         negative pledge clauses in agreements relating to the borrowing of
         money.

                  MAKE-WHOLE AMOUNT -- means, with respect to any date (a
         "Prepayment Date") and any principal amount ("Prepaid Principal") of
         Notes required or desired for any reason to be paid prior to the
         regularly scheduled maturity thereof on such Prepayment Date, the
         greater of

                           (a) Zero Dollars ($0), or

                           (b) (i) the sum of the present values of the then
                           remaining 


                                       55
<PAGE>   60
                           scheduled payments of principal and interest that
                           would be payable in respect of such Prepaid Principal
                           but for such prepayment or acceleration, minus

                                    (ii)    the sum of

                                            (A) the amount of such Prepaid
                                             Principal, plus

                                            (B) the amount of interest accrued
                                    on such Prepaid Principal since the
                                    scheduled interest payment date immediately
                                    preceding such Prepayment Date.

         In determining such present values, a discount rate equal to the
         Make-Whole Discount Rate with respect to such Prepayment Date and
         Prepaid Principal divided by two (2), and a discount period of six (6)
         months of thirty (30) days each, shall be used.

         As used in this definition:

                           Make-Whole Discount Rate -- means, with respect to
                  any Prepayment Date and Prepaid Principal, the sum of

                                    (a) the per annum percentage rate (rounded
                           to the nearest three (3) decimal places) equal to the
                           bond equivalent yield to maturity derived from the
                           annual yield to maturity of the United States
                           Treasury obligation listed in the Applicable H.15 as
                           of such Prepayment Date for the then most recently
                           available day in such Applicable H.15 with a Treasury
                           Constant Maturity (as defined in such Applicable
                           H.15) equal to the Weighted Average Life to Maturity
                           of such Prepaid Principal determined as of such
                           Prepayment Date, plus

                                    (b) fifty one-hundredths percent (0.50%) per
                           annum.

                  For purposes of clause (a) of the preceding sentence, if no
                  United States Treasury obligation with a Treasury Constant
                  Maturity corresponding exactly to the Weighted Average Life to
                  Maturity of such Prepaid Principal is listed, the yields for
                  the two (2) published United States Treasury obligations with
                  Treasury Constant Maturities most closely corresponding to
                  such Weighted Average Life to Maturity (one (1) with a longer
                  maturity and one (1) with a shorter maturity, if available)
                  shall be calculated pursuant to the immediately preceding
                  sentence and the Make-Whole Discount Rate shall be
                  interpolated or extrapolated from such yields on a
                  straight-line basis.

                           Applicable H.15 -- means, at any time, United States
                  Federal Reserve Statistical Release H.15(519) or its successor
                  publication then most recently published and available to the
                  public or, if no such successor publication is available, then
                  any other source of current information in respect of interest
                  rates 


                                       56
<PAGE>   61
                  on securities of the United States of America that is
                  generally available and, in the judgment of the Required
                  Holders, provides information reasonably comparable to the
                  H.15(519) report.

                           Weighted Average Life to Maturity -- means, with
                  respect to any Prepayment Date and Prepaid Principal, the
                  number of years obtained by dividing the Remaining
                  Dollar-Years of such Prepaid Principal determined on such
                  Prepayment Date by such Prepaid Principal.

                           Remaining Dollar-Years -- means, with respect to any
                  Prepayment Date and Prepaid Principal, the result obtained by

                                    (a) multiplying, in the case of each
                           required payment of principal (including payment at
                           maturity) that would be payable in respect of such
                           Prepaid Principal but for such prepayment,

                                            (i)  an amount equal to such 
                                    required payment of principal, by

                                            (ii) the number of years (calculated
                                    to the nearest one-twelfth (1/12) that will
                                    elapse between such Prepayment Date and the
                                    date such required principal payment would
                                    be due if such Prepaid Principal had not
                                    been so prepaid, and

                                    (b) calculating the sum of each of the
                           products obtained in the preceding subsection (a).

                  MARGIN SECURITY -- means "margin stock" within the meaning of
         Regulations T, U and X of the Board of Governors of the Federal Reserve
         System, 12 C.F.R., Chapter II, as amended from time to time.

                  MATERIAL ADVERSE EFFECT -- means a material adverse effect on
         the business, profits, Properties or condition (financial or otherwise)
         of the Parent, the Company and the Subsidiaries, taken as a whole, or
         the ability of the Parent or the Company to perform their respective
         obligations under the Financing Documents.

                  MOODY'S -- Section 10.1 (in the definition of "Nationally
         Recognized Rating Agency").

                  MULTIEMPLOYER PLAN -- means any multiemployer plan (as defined
         in section 3(37) of ERISA) in respect of which the Parent, the Company
         or any ERISA Affiliate is an "employer" (as such term is defined in
         section 3 of ERISA).

                  MULTIPLE EMPLOYER PENSION PLAN -- means any employee benefit
         plan within the meaning of section 3(3) of ERISA (other than a
         Multiemployer Plan), subject to Title IV of 


                                       57
<PAGE>   62
         ERISA, constituting a "single-employer plan" (as defined in section
         4001 of ERISA) which has two (2) or more "contributing sponsors" (as
         defined in section 4001 of ERISA), at least two (2) of which are not
         under "common control" (as defined in section 4001 of ERISA) and to
         which the Parent, the Company or any ERISA Affiliate contribute;
         provided that for purposes of this Agreement the Chicago Title & Trust
         Pension Plan shall be deemed not to be a Multiple Employer Pension
         Plan.

                  NATIONALLY RECOGNIZED RATING AGENCY -- means either Standard &
         Poor's Ratings Group, a division of McGraw-Hill, Inc. ("S&P"), or
         Moody's Investors Service ("Moody's"), or Duff & Phelps Credit Rating
         Co.

                  1995 NOTES -- means the Company's 8.62% Senior Notes due
         February 23, 2000 issued pursuant to those certain Note Purchase
         Agreements, each dated January 15, 1995, between the Company and each
         of the purchasers identified on Annex 1 thereto, as amended by the
         Amendment to Note Purchase Agreement, dated as of June 23, 1995, the
         Amendment No. 2 to Note Purchase Agreement, dated as of November 6,
         1995, and the Third Amendment to Note Purchase Agreement, dated as of
         the date hereof.

                  NOTE PURCHASE AGREEMENT -- Section 0(c).

                  NOTES -- Section 0.

                  OPERATING EXPENSE CONTRIBUTIONS --  means, at any time, the 
         aggregate amount of Contributions

                           (a) directly applied by the Company or SPHI to the
                  payment of Operating Expenses after the Closing Date and prior
                  to such time and

                           (b) which the Company is under no obligation to repay
         to the Parent.

                  OPERATING EXPENSES -- means any and all expenses and other
         amounts incurred or expended by the Company or SPHI in the operation of
         its business, including, without limitation, property taxes,
         construction bonds and assessments, legal expenses, rental and lease
         payments, employee salaries, telephone and utility costs and similar
         items.

                  OTHER PURCHASERS --  Section 0(c).

                  NORTH NATOMAS PROPERTIES -- means the Real Estate Properties
         identified on Part 10.1 of Annex 3.

                  PARENT -- has the meaning specified in the introductory
         sentence.

                  PBGC -- means the Pension Benefit Guaranty Corporation and any
         successor corporation or governmental agency.


                                       58
<PAGE>   63
                  PENSION PLAN -- means, at any time, any "employee pension
         benefit plan" (as defined in section 3 of ERISA) maintained at such
         time by the Parent, the Company or any ERISA Affiliate for employees of
         the Parent, the Company or such ERISA Affiliate, excluding any
         Multiemployer Plan, but including, without limitation, any Multiple
         Employer Pension Plan; provided that for purposes of this Agreement the
         Chicago Title & Trust Pension Plan shall be deemed not to be a Pension
         Plan.

                  PERMITTED EXTRAORDINARY DIVIDEND -- means the dividend by the
         Company to the Parent, on or about the Closing Date, in the amount of
         up to Thirty-Nine Million Five Hundred Thousand Dollars ($39,500,000).

                  PERMITTED INVESTMENTS -- means, at any time, the following:

                           (a) Investments in direct obligations of, or
                  obligations guarantied by, the United States of America or any
                  agency of the United States of America the obligations of
                  which agency carry the full faith and credit of the United
                  States of America, provided that such obligations mature
                  within three (3) years from the date of acquisition thereof;

                           (b) Investments in commercial paper of corporations
                  that at the time of acquisition thereof have an assigned
                  rating in one of the top two rating classifications by a
                  Nationally Recognized Rating Agency, provided that such
                  commercial paper matures within two hundred seventy (270) days
                  from the date of acquisition thereof;

                           (c) Investments in any open-ended money market mutual
                  fund that invests solely in so-called "money market"
                  instruments maturing not more than one (1) year after the
                  acquisition thereof, which fund has total assets in excess of
                  One Billion Dollars ($1,000,000,000) and which is regulated by
                  the Investment Company Act of 1940, as amended, and which
                  Investments would be classified as a current asset under GAAP;

                           (d) Investments in any mutual fund that invests
                  solely in preferred stocks of corporations that have an
                  assigned rating in one of the top two rating categories by a
                  Nationally Recognized Rating Agency and which fund is
                  regulated by the Investment Company Act of 1940, as amended;

                           (e) Investments in certificates of deposit,
                  eurodollar deposits, repurchase agreements and bankers'
                  acceptances maturing within one (1) year from the date of
                  acquisition, issued by a commercial bank organized under the
                  laws of the United States of America or any state thereof and
                  having capital, surplus and undivided profits aggregating at
                  least One Hundred Million Dollars ($100,000,000);

                           (f) Investments in any obligation of any state of the
                  United States of America, or municipality thereof, that at the
                  time of acquisition thereof have an 


                                       59
<PAGE>   64
                  assigned rating in one of the top two rating categories by a
                  Nationally Recognized Rating Agency; provided that such
                  obligations mature within three (3) years of the date of
                  acquisition thereof;

                           (g) Investments in local deposit accounts maintained
                  for operating funds of the Company and SPHI; and

                           (h) Investments existing on the Closing Date and
                  disclosed in Part 10.1 of Annex 3.

         Investments shall be valued at cost less any net return of capital
         through the sale or liquidation thereof or other return of capital
         thereon, in any case without giving effect to any write-down in the
         value thereof.

                  PERSON -- means an individual, partnership, corporation,
         limited liability company, trust, unincorporated organization, or a
         government or agency or political subdivision thereof.

                  PLACEMENT MEMORANDUM -- Section 0.

                  PROPERTY -- means any interest in any kind of property or
         asset, whether real, personal or mixed, and whether tangible or
         intangible.

                  PURCHASER -- means the Persons listed as purchasers of Notes
         on Annex 1.

                  QUALIFIED INDEBTEDNESS COVERAGE ASSETS -- means

                           (a) at any time, when the Company or SPHI holds Real
                  Estate Assets, the sum (without duplication) of

                                    (i) the aggregate Allowable Value of all
                           Real Estate Assets held by the Company and SPHI at
                           such time, plus

                                    (ii) cash of the Company and SPHI at such
                           time, plus

                                    (iii) Permitted Investments (other than cash
                           and Real Estate Assets) of the Company and SPHI at
                           such time, and

                           (b) at any time, when neither the Company nor SPHI
                  holds any Real Estate Assets, cash of the Company and SPHI at
                  such time.

         As used in this definition:

                                    Allowable Value -- means,


                                       60
<PAGE>   65
                                    (i) with respect to each North Natomas
                           Property, the Designated Disposition Value of such
                           Real Estate Property at such time,

                                    (ii) with respect to each Real Estate Loan
                           which is a Seller Note, the net book value
                           (determined in accordance with GAAP) of such Seller
                           Note at such time, and

                                    (iii) with respect to each of the other Real
                           Estate Assets not covered by subclause (i) or
                           subclause (ii) above, the lesser of

                                             (A) the Designated Disposition
                                    Value of such Real Estate Asset at such time
                                    and

                                             (B) the net book value (determined
                                    in accordance with GAAP) of such Real Estate
                                    Asset at such time.

                  QUALIFIED RESTRICTED PAYMENT ASSETS -- means, at any time, the
         sum (without duplication) of

                           (a) the lesser of

                                    (i) the aggregate Designated Disposition
                           Value of all Real Estate Assets held by the Company
                           and SPHI at such time and

                                    (ii) the Reserve for Disposition at such
                           time plus

                                             (A) in the case of all Real Estate
                                    Assets held by the Company and SPHI at such
                                    time other than the North Natomas
                                    Properties, the aggregate net book value
                                    (each as determined in accordance with GAAP)
                                    of such Real Estate Assets, and

                                             (B) in the case of the North
                                    Natomas Properties, the aggregate Designated
                                    Disposition Value of such Real Estate
                                    Properties at such time,

                  plus

                           (b) cash of the Company and SPHI at such time, plus

                           (c) Permitted Investments (other than cash and Real
                  Estate Assets) of the Company and SPHI at such time.


                                       61
<PAGE>   66
         As used in this definition:

                           Reserve for Disposition -- means, at any time, the
                  lesser of

                                    (i) Four Million Five Hundred Thirty-One
                           Thousand Three Hundred Seventy-Nine Dollars
                           ($4,531,379) and

                                    (ii) the aggregate amount of reserves for
                           disposition reflected on Annex 4 and attributable to
                           Real Estate Assets other than the North Natomas
                           Properties owned by the Company and SPHI at such
                           time.

                  "QPAM EXEMPTION" means Prohibited Transaction Class Exemption
         84-14 issued by the United States Department of Labor.

                  REAL ESTATE ASSETS -- means the collective reference to Real
         Estate Properties, Real Estate Loans and, without duplication, the
         Seller Notes.

                  REAL ESTATE LOANS -- means loans to be repaid to the Company
         or SPHI, including, without limitation, loans in the form of Seller
         Notes, that are secured by unimproved or improved land with no
         significant building improvements, which loans are available for sale
         by the Company or SPHI.

                  REAL ESTATE PROPERTIES -- means real Properties or investments
         in real Properties (other than Real Estate Loans) owned by the Company
         or SPHI and available for sale by the Company or SPHI.

                  REQUIRED HOLDERS -- means, at any time, the holders of at
         least sixty-six and two-thirds percent (66"%) in principal amount of
         the Notes at the time outstanding (exclusive of Notes then owned by any
         one or more of the Parent, the Company, any Subsidiary and any
         Affiliate).

                  RESTRICTED INVESTMENTS -- means, at any time, all Investments
         except Permitted Investments.

                  RESTRICTED PAYMENT -- means:

                           (a) any dividend or other distribution, direct or
                  indirect, on account of any shares of capital stock of the
                  Company now or hereafter outstanding, whether in cash or other
                  Property, except a dividend or other distribution payable
                  solely in shares of common stock of the Company, and

                           (b) any redemption, retirement, purchase or other
                  acquisition, direct or indirect, of any shares of capital
                  stock of the Company now or hereafter outstanding, or of any
                  warrants, rights or options to acquire any shares of such


                                       62
<PAGE>   67
                  stock.

                  S&P -- Section 10.1 (in the definition of "Nationally
         Recognized Rating Agency").

                  SCHEDULED INTEREST PAYMENTS -- means, at any time, the sum of

                           (a) all future unpaid scheduled payments of interest
                  in respect of the Notes and the 1995 Notes at such time plus

                           (b) the aggregate amount of all future unpaid
                  scheduled payments of interest in respect of all other
                  Indebtedness of the Company and SPHI outstanding at such time,

         in each case without application of any "present value" discount
         thereto and assuming for such calculation that all principal payments
         on the Notes and such other Indebtedness will be paid in accordance
         with the regularly scheduled terms.

                  SECURITIES ACT -- means the Securities Act of 1933, as
         amended.

                  SECURITY -- means "security" as defined by section 2(1) of the
         Securities Act.

                  SELLER NOTE -- means a promissory note received by the Company
         or SPHI in connection with, and as consideration for, a Transfer of
         Real Estate Assets and

                           (a) naming the Company or SPHI as the payee,

                           (b) requiring a monthly or a quarterly payment of
                  interest at a per annum rate equal to or greater than the
                  lesser of

                                    (i) nine percent (9%), or

                                    (ii) the rate of interest publicly announced
                           by Bank of America from time to time as its prime
                           rate at the time of such Transfer, and

                           (c) secured by a perfected first priority Lien in
                  favor of the Company or SPHI in the Real Estate Assets that
                  are the subject of the Transfer related to the delivery of
                  such promissory note.

                  SIGNIFICANT SUBSIDIARY -- means a Subsidiary which is a
         "Significant Subsidiary" of the Parent within the meaning set forth in
         Regulation S-X of the Securities and Exchange Commission.

                  SPECIAL COUNSEL -- Section 1.2(b).

                  SPHI -- means Sacramento Properties Holdings, Inc., a
         California corporation and 


                                       63
<PAGE>   68
         a wholly-owned subsidiary of the Company.

                  SUBSIDIARY -- means, at any time, a corporation of which the
         Parent owns, directly or indirectly, more than fifty percent (50%) (by
         number of votes) of each class of Voting Stock at such time.

                  TRANSFER CONSIDERATION -- means, with respect to any Transfer
         of any Real Estate Asset, an amount equal to the sum of

                           (a) cash received by the Company or SPHI at the time
                  of such Transfer plus

                           (b) the principal amount of Seller Notes issued to
                  the Company or SPHI at the time of such Transfer.

                  TRANSFER CONTRIBUTION AMOUNT -- means, at any time, an amount
         equal to the greater of

                           (a) Zero Dollars ($0) and

                           (b) the result of

                                    (i) the Designated Disposition Value of all
                           Real Estate Assets which shall have been the subject
                           of a Transfer on and after the Closing Date and prior
                           to such time minus

                                    (ii) the aggregate Transfer Consideration
                           received by the Company or SPHI in respect of all
                           Real Estate Assets which shall have been the subject
                           of a Transfer on and after the Closing Date and prior
                           to the time of such Transfer.

                  TRANSFERS -- Section 7.10.

                  VOTING STOCK -- means capital stock of any class or classes of
         a corporation the holders of which are ordinarily, in the absence of
         contingencies, entitled to elect corporate directors (or Persons
         performing similar functions).

         10.2     GAAP.

         Where the character or amount of any asset or liability or item of
income or expense, or any consolidation or other accounting computation is
required to be made for any purpose hereunder, it shall be done in accordance
with GAAP as in effect on the date of, or at the end of the period covered by,
the financial statements from which such asset, liability, item of income, or
item of expense, is derived, or, in the case of any such computation, as in
effect on the date as of which such computation is required to be determined,
provided, that if any term defined herein 


                                       64
<PAGE>   69
includes or excludes amounts, items or concepts that would not be included in or
excluded from such term if such term were defined with reference solely to GAAP,
such term will be deemed to include or exclude such amounts, items or concepts
as set forth herein.

         10.3     DIRECTLY OR INDIRECTLY.

         Where any provision herein refers to action to be taken by any Person,
or which such Person is prohibited from taking, such provision shall be
applicable whether such action is taken directly or indirectly by such Person,
including actions taken by or on behalf of any partnership in which such Person
is a general partner.

         10.4     SECTION HEADINGS AND TABLE OF CONTENTS AND CONSTRUCTION.

                  (a) SECTION HEADINGS AND TABLE OF CONTENTS, ETC.. The titles
         of the Sections and the Table of Contents appear as a matter of
         convenience only, do not constitute a part hereof and shall not affect
         the construction hereof. The words "herein," "hereof," "hereunder" and
         "hereto" refer to this Agreement as a whole and not to any particular
         Section or other subdivision.

                  (b) CONSTRUCTION. Each covenant contained herein shall be
         construed (absent an express contrary provision herein) as being
         independent of each other covenant contained herein, and compliance
         with any one covenant shall not (absent such an express contrary
         provision) be deemed to excuse compliance with one or more other
         covenants.

         10.5     GOVERNING LAW.

         THIS AGREEMENT AND THE NOTES SHALL BE GOVERNED BY, AND CONSTRUED AND
ENFORCED IN ACCORDANCE WITH, NEW YORK LAW, WITHOUT REFERENCE TO NEW YORK LAW
REGARDING CHOICE OF LAW.

11.      MISCELLANEOUS

         11.1     COMMUNICATIONS.

                  (a) METHOD; ADDRESS. All communications hereunder or under the
         Notes (i) shall be in writing, (ii) shall be either (A) hand delivered,
         (B) deposited into the United States mail (registered or certified
         mail), postage prepaid, (C) sent by overnight courier or (D)
         electronically transmitted by way of "telecopy" or "fax transmission"
         and, on the date of such electronic transmission, sent by overnight
         courier and (iii) shall be addressed,

                           (1)      if to the Parent,

                                    Alleghany Corporation
                                    375 Park Avenue, Suite 3201


                                       65
<PAGE>   70
                                    New York, New York 10152
                                    Attention: Robert M. Hart, Esq.
                                    Facsimile: (212) 759-8149

                           (2)      if to the Company,

                                    Alleghany Properties, Inc.
                                    2150 River Plaza Drive
                                    Suite 155
                                    Sacramento, California 95833
                                    Attention: Mr. Eric B. Olsen
                                    Facsimile: (916) 648-7739

                  with a copy to:

                                    Alleghany Corporation
                                    375 Park Avenue, Suite 3201
                                    New York, New York 10152
                                    Attention: Robert M. Hart, Esq.
                                    Facsimile: (212) 759-8149

         or at such other address as the Parent and/or the Company, as the case
         may be, shall have furnished in writing to all holders of the Notes at
         the time outstanding, and

                           (3)      if to any of the holders of the Notes,

                                    (y) if such holders are the Purchasers, at
                           their respective addresses set forth on Annex 1, and
                           further including any parties referred to on such
                           Annex 1 that are required to receive notices in
                           addition to such holders of the Notes, and

                                    (z) if such holders are not the Purchasers,
                           at their respective addresses set forth in the
                           register for the registration and transfer of Notes
                           maintained pursuant to Section 6.1,

         or to any such party at such other address as such party may designate
         by notice duly given in accordance with this Section 0 to the Company
         (which other address shall be entered in such register).

                  (b) WHEN GIVEN. Any communication so addressed and deposited
         in the United States mail, postage prepaid, by registered or certified
         mail (in each case, with return receipt requested) shall be deemed to
         be received on the third (3rd) succeeding Business Day after the day of
         such deposit (not including the date of such deposit). Any notice so
         addressed and otherwise delivered shall be deemed to be received when
         actually received at the address of the addressee.


                                       66
<PAGE>   71
         11.2     REPRODUCTION OF DOCUMENTS.

         This Agreement and all documents relating hereto, including, without
limitation,

                  (a) consents, waivers and modifications that may hereafter be
         executed,

                  (b) documents received by you at the closing of your purchase
         of the Notes (except the Notes themselves), and

                  (c) financial statements, certificates and other information
         previously or hereafter furnished to you or any other holder of Notes,

may be reproduced by any holder of Notes by any photographic, photostatic,
microfilm, micro-card, miniature photographic, digital or other similar process
and each holder of Notes may destroy any original document so reproduced. The
Parent and the Company agree and stipulate that any such reproduction shall be
admissible in evidence as the original itself in any judicial or administrative
proceeding (whether or not the original is in existence and whether or not such
reproduction was made by such holder of Notes in the regular course of business)
and that any enlargement, facsimile or further reproduction of such reproduction
shall likewise be admissible in evidence. Nothing in this Section 0 shall
prohibit the Parent, the Company or any holder of Notes from contesting the
accuracy of any such reproduction.

         11.3     SURVIVAL.

         All warranties, representations, certifications and covenants made by
the Parent and the Company herein or in any certificate or other instrument
delivered by it or on its behalf hereunder shall be considered to have been
relied upon by you and shall survive the delivery to you of the Notes regardless
of any investigation made by you or on your behalf. All statements in any such
certificate or other instrument shall constitute warranties and representations
by the Parent and the Company hereunder.

         11.4     SUCCESSORS AND ASSIGNS.

         This Agreement shall inure to the benefit of and be binding upon the
successors and assigns of each of the parties hereto. The provisions hereof are
intended to be for the benefit of all holders, from time to time, of Notes, and
shall be enforceable by any such holder, whether or not an express assignment to
such holder of rights hereunder shall have been made by you or your successor or
assign.


                                       67
<PAGE>   72
         11.5     AMENDMENT AND WAIVER.

                  (a) REQUIREMENTS. This Agreement may be amended, and the
         observance of any term hereof may be waived, with (and only with) the
         written consent of the Parent, the Company and the Required Holders;
         provided that no such amendment or waiver of any of the provisions of
         Section 0 through Section 5, inclusive, or any defined term used
         therein, shall be effective as to any holder of Notes unless consented
         to by such holder in writing; and provided further that no such
         amendment or waiver shall, without the written consent of the holders
         of all Notes (exclusive of Notes held by the Parent, the Company, any
         Subsidiary or any Affiliate) at the time outstanding,

                           (i) subject to Section 9, change the amount or time
                  of any prepayment or payment of principal or Make-Whole Amount
                  or the rate or time of payment of interest,

                           (ii) amend Section 0,

                           (iii) amend the definition of Required Holders, or

                           (iv) amend this Section 0.

         The holder of any Note may specify that any such written consent
         executed by it shall be effective only with respect to a portion of the
         Notes held by it (in which case it shall specify, by dollar amount, the
         aggregate principal amount of Notes with respect to which such consent
         shall be effective) and in the event of any such specification such
         holder shall be deemed to have executed such written consent only with
         respect to the portion of the Notes so specified.

                  (b) SOLICITATION OF NOTEHOLDERS.

                           (i) SOLICITATION. Neither the Parent nor the Company
                  shall solicit, request or negotiate for or with respect to any
                  proposed waiver or amendment of any of the provisions hereof
                  or the Notes unless each holder of the Notes (irrespective of
                  the amount of Notes then owned by it) shall be provided by the
                  Parent or the Company with sufficient information to enable it
                  to make an informed decision with respect thereto. Executed or
                  true and correct copies of any waiver or consent effected
                  pursuant to the provisions of this Section 0 shall be
                  delivered by the Parent or the Company to each holder of
                  outstanding Notes immediately following the date on which the
                  same shall have been executed and delivered by all holders of
                  outstanding Notes required to consent or agree to such waiver
                  or consent.

                           (ii) PAYMENT. The Parent and the Company shall not,
                  directly or indirectly, pay or cause to be paid any
                  remuneration, whether by way of 


                                       68
<PAGE>   73
                  supplemental or additional interest, fee or otherwise, or
                  grant any security, to any holder of Notes as consideration
                  for or as an inducement to the entering into by any holder of
                  Notes of any waiver or amendment of any of the terms and
                  provisions hereof unless such remuneration is concurrently
                  paid, or security is concurrently granted, on the same terms,
                  ratably to the holders of all Notes then outstanding.

                           (iii) SCOPE OF CONSENT. Any consent made pursuant to
                  this Section 0 by a holder of Notes that has transferred or
                  has agreed to transfer its Notes to the Parent, the Company,
                  any Subsidiary or any Affiliate and has provided or has agreed
                  to provide such written consent as a condition to such
                  transfer shall be void and of no force and effect except
                  solely as to such holder, and any amendments effected or
                  waivers granted or to be effected or granted that would not
                  have been or would not be so effected or granted but for such
                  consent (and the consents of all other holders of Notes that
                  were acquired under the same or similar conditions) shall be
                  void and of no force and effect, retroactive to the date such
                  amendment or waiver initially took or takes effect, except
                  solely as to such holder.

                  (c) BINDING EFFECT. Except as provided in Section 0(b), any
         amendment or waiver consented to as provided in this Section 0 shall
         apply equally to all holders of Notes and shall be binding upon them
         and upon each future holder of any Note and upon the Parent and the
         Company whether or not such Note shall have been marked to indicate
         such amendment or waiver. No such amendment or waiver shall extend to
         or affect any obligation, covenant, agreement, Default or Event of
         Default not expressly amended or waived or impair any right consequent
         thereon.

         11.6     PAYMENTS, WHEN RECEIVED.

                  (a) PAYMENTS DUE ON HOLIDAYS. If any payment due on, or with
         respect to, any Note shall fall due on a day other than a Business Day,
         then such payment shall be made on the first Business Day following the
         day on which such payment shall have so fallen due; provided that if
         all or any portion of such payment shall consist of a payment of
         interest, for purposes of calculating such interest, such payment shall
         be deemed to have been originally due on such first following Business
         Day, such interest shall accrue and be payable to (but not including)
         the actual date of payment, and the amount of the next succeeding
         interest payment shall be adjusted accordingly.

                  (b) PAYMENTS, WHEN RECEIVED. Any payment to be made to the
         holders of Notes hereunder or under the Notes shall be deemed to have
         been made on the Business Day such payment actually becomes available
         to such holder at such holder's bank prior to 1:00 p.m. (Eastern time).


                                       69
<PAGE>   74
         11.7     ENTIRE AGREEMENT.

         This Agreement constitutes the final written expression of all of the
terms hereof and is a complete and exclusive statement of those terms.

         11.8     DUPLICATE ORIGINALS, EXECUTION IN COUNTERPART.

         Two or more duplicate originals hereof may be signed by the parties,
each of which shall be an original but all of which together shall constitute
one and the same instrument. This Agreement may be executed in one or more
counterparts and shall be effective when at least one counterpart shall have
been executed by each party hereto, and each set of counterparts which,
collectively, show execution by each party hereto shall constitute one duplicate
original.


      [REMAINDER OF PAGE INTENTIONALLY BLANK. NEXT PAGE IS SIGNATURE PAGE.]


                                       70
<PAGE>   75
         If this Agreement is satisfactory to you, please so indicate by signing
the acceptance at the foot of a counterpart hereof and returning such
counterpart to the Parent and the Company, whereupon this Agreement shall become
binding between us in accordance with its terms.

                                                Very truly yours,

                                                ALLEGHANY CORPORATION



                                                By: /s/ David B. Cuming
                                                    ---------------------------
                                                Name: David B. Cuming
                                                Title: Senior Vice President


                                                ALLEGHANY PROPERTIES, INC.



                                                By: /s/ David B. Cuming
                                                    ---------------------------
                                                Name: David B. Cuming
                                                Title: President



Accepted:


UNITED OF OMAHA LIFE INSURANCE COMPANY


By:  /s/ Edwin H. Garrison, Jr.
     ---------------------------
Name:  Edwin H. Garrison, Jr.
Title:  First Vice President


<PAGE>   1
                                                                Exhibit 10.18(b)

                    List of Contents of Annexes and Exhibits
                                     to the
                Alleghany Properties 1998 Note Purchase Agreement

Annex 1 - Information as to Purchasers
Annex 2 - Payment Instructions at Closing
Annex 3 - Information as to Parent and Company
Annex 4 - Designated Disposition Values and Reserves for Disposition

Exhibit A  - Form of 6.83% Senior Note Due December 11, 2004 
Exhibit B1 - Form of Company Counsel's Closing Opinion 
Exhibit B2 - Form of Special Counsel's Closing Opinion 
Exhibit C1 - Form of Officers' Certificate - Parent 
Exhibit C2 - Form of Officers' Certificate - Company 
Exhibit D1 - Form of Secretary's Certificate - Parent 
Exhibit D2 - Form of Secretary's Certificate - Company



<PAGE>   1
                                                                EXHIBIT 10.27(a)


================================================================================
                                   $43,000,000



                      AMENDED AND RESTATED CREDIT AGREEMENT


                                      AMONG


                          UNDERWRITERS RE GROUP, INC.,

                                  as Borrower,

                            THE LENDERS NAMED HEREIN


                                       and



                       THE FIRST NATIONAL BANK OF CHICAGO,

                                    as Agent


                                   DATED AS OF


                                December 31, 1998


================================================================================

<PAGE>   2
                                TABLE OF CONTENTS


<TABLE>
<S>                                                                                                              <C>
Article I

         DEFINITIONS..............................................................................................1

Article II

         THE FACILITY............................................................................................20

         2.1      The Facility...................................................................................20
                  2.1.1    Description of Facility...............................................................20
                  2.1.2    Facility Amount.......................................................................20
                  2.1.3    Availability of Facility..............................................................20
         2.2      Ratable Advances...............................................................................20
                  2.2.1    Ratable Advances......................................................................20
                  2.2.2    Ratable Advance Rate Options..........................................................21
                  2.2.3    Method of Selecting Types and Interest Periods for
                           Ratable Advances......................................................................21
                  2.2.4    Conversion and Continuation of Outstanding Ratable Advances...........................21
         2.3      Competitive Bid Advances.......................................................................22
                  2.3.1    Competitive Bid Option................................................................22
                  2.3.2    Competitive Bid Quote Request.........................................................22
                  2.3.3    Invitation for Competitive Bid Quotes.................................................23
                  2.3.4    Submission and Contents of Competitive Bid Quotes.....................................23
                  2.3.5    Notice to Borrower....................................................................24
                  2.3.6    Acceptance and Notice by Borrower.....................................................25
                  2.3.7    Allocation by Agent...................................................................25
         2.4      Availability of Funds..........................................................................25
         2.5      Facility Fee; Reductions in Aggregate Commitment...............................................26
         2.6      Minimum Amount of Each Advance.................................................................26
         2.7      Optional Principal Payments....................................................................26
         2.8      Changes in Interest Rate, etc..................................................................26
         2.9      Rates Applicable After Default.................................................................27
         2.10     Method of Payment..............................................................................27
         2.11     Notes; Telephonic Notices......................................................................27
         2.12     Interest Payment Dates; Interest and Fee Basis.................................................28
         2.13     Notification of Advances, Interest Rates, Prepayments and
                  Commitment Reductions..........................................................................28
         2.14     Lending Installations..........................................................................28
         2.15     Non-Receipt of Funds by the Agent..............................................................28
         2.16     Taxes..........................................................................................29
         2.17     Agent's Fees...................................................................................30
</TABLE>


                                      -i-
<PAGE>   3

<TABLE>
<S>                                                                                                              <C>
Article III

         CHANGE IN CIRCUMSTANCES.................................................................................30

         3.1      Yield Protection...............................................................................30
         3.2      Changes in Capital Adequacy Regulations........................................................31
         3.3      Availability of Types of Advances..............................................................31
         3.4      Funding Indemnification........................................................................31
         3.5      Lender Statements; Survival of Indemnity.......................................................32
         3.6      Substitution of Lenders........................................................................32
         3.7      Survival.......................................................................................32

Article IV

         CONDITIONS PRECEDENT....................................................................................33

         4.1      Initial Loans..................................................................................33
         4.2      Each Future Advance............................................................................34

Article V

         REPRESENTATIONS AND WARRANTIES..........................................................................35

         5.1      Corporate Existence and Standing...............................................................35
         5.2      Authorization and Validity.....................................................................35
         5.3      Compliance with Laws and Contracts.............................................................35
         5.4      Governmental Consents..........................................................................36
         5.5      Financial Statements...........................................................................36
         5.6      Material Adverse Change........................................................................36
         5.7      Taxes..........................................................................................36
         5.8      Litigation.....................................................................................37
         5.9      Capitalization.................................................................................37
         5.10     ERISA..........................................................................................37
         5.11     Defaults.......................................................................................38
         5.12     Federal Reserve Regulations....................................................................38
         5.13     Investment Company; Public Utility Holding Company Act.........................................38
         5.14     Certain Fees...................................................................................38
         5.15     Solvency.......................................................................................39
         5.16     Ownership of Properties........................................................................39
         5.17     Indebtedness...................................................................................39
         5.18     Material Agreements............................................................................39
         5.19     Environmental Laws.............................................................................39
         5.20     Insurance......................................................................................40
         5.21     Insurance Licenses.............................................................................40
         5.22     Reserves.......................................................................................40
         5.23     Disclosure.....................................................................................41
</TABLE>


                                      -ii-
<PAGE>   4

<TABLE>
<S>                                                                                                              <C>
         5.24     Year 2000 Compliance...........................................................................41
         5.25     Use of Proceeds................................................................................41
         5.26     Permits, Licenses and Rights...................................................................41

Article VI

         COVENANTS...............................................................................................41

         6.1      Financial Reporting............................................................................42
         6.2      Use of Proceeds................................................................................44
         6.3      Notice of Default..............................................................................44
         6.4      Conduct of Business............................................................................45
         6.5      Taxes..........................................................................................45
         6.6      Insurance......................................................................................46
         6.7      Compliance with Laws...........................................................................46
         6.8      Maintenance of Properties; Year 2000 Compliance................................................46
         6.9      Inspection.....................................................................................46
         6.10     Capital Stock and Dividends....................................................................47
         6.11     Indebtedness...................................................................................47
         6.12     Merger.........................................................................................47
         6.13     Sale of Assets.................................................................................47
         6.14     Investments and Purchases......................................................................48
         6.15     Contingent Obligations.........................................................................50
         6.16     Liens..........................................................................................50
         6.17     Affiliates.....................................................................................51
         6.18     Other Indebtedness.............................................................................51
         6.19     Environmental Matters..........................................................................51
         6.20     Change in Corporate Structure; Fiscal Year.....................................................51
         6.21     Inconsistent Agreements........................................................................52
         6.22     Financial Covenants............................................................................52
                  6.22.1   Minimum Statutory Surplus.............................................................52
                  6.22.2   Leverage Ratio........................................................................52
                  6.22.3   Adjusted Leverage Ratio...............................................................52
                  6.22.4   URC Risk Based Capital Ratio..........................................................52
         6.23     Tax Consolidation..............................................................................52
         6.24     ERISA Compliance...............................................................................53

Article VII

         DEFAULTS................................................................................................53
</TABLE>


                                     -iii-
<PAGE>   5

<TABLE>
<S>                                                                                                              <C>
Article VIII

         ACCELERATION, WAIVERS, AMENDMENTS AND REMEDIES..........................................................56

         8.1      Acceleration...................................................................................56
         8.2      Amendments.....................................................................................57
         8.3      Preservation of Rights.........................................................................57

Article IX

         GENERAL PROVISIONS......................................................................................58

         9.1      Survival of Representations....................................................................58
         9.2      Governmental Regulation........................................................................58
         9.3      Taxes..........................................................................................58
         9.4      Headings.......................................................................................58
         9.5      Entire Agreement...............................................................................58
         9.6      Several Obligations; Benefits of this Agreement................................................58
         9.7      Expenses; Indemnification......................................................................58
         9.8      Numbers of Documents...........................................................................59
         9.9      Accounting.....................................................................................59
         9.10     Severability of Provisions.....................................................................59
         9.11     Nonliability of Lenders........................................................................59
         9.12     Choice of Law..................................................................................60
         9.13     Consent to Jurisdiction........................................................................60
         9.14     Waiver of Jury Trial...........................................................................60
         9.15     Disclosure.....................................................................................60
         9.16     Counterparts...................................................................................61
         9.17     Confidentiality................................................................................61
         9.18     Restatement Date...............................................................................61
         9.19     Departing Lender...............................................................................62

Article X

         THE AGENT...............................................................................................62

         10.1     Appointment....................................................................................62
         10.2     Powers.........................................................................................62
         10.3     General Immunity...............................................................................62
         10.4     No Responsibility for Loans, Recitals, etc.....................................................63
         10.5     Action on Instructions of Lenders..............................................................63
         10.6     Employment of Agents and Counsel...............................................................63
         10.7     Reliance on Documents; Counsel.................................................................63
         10.8     Agent's Reimbursement and Indemnification......................................................63
         10.9     Notice of Default..............................................................................64
         10.10    Rights as a Lender.............................................................................64
</TABLE>


                                      -iv-
<PAGE>   6

<TABLE>
<S>                                                                                                              <C>
         10.11    Lender Credit Decision.........................................................................64
         10.12    Successor Agent................................................................................64

Article XI

         SETOFF; RATABLE PAYMENTS................................................................................65

         11.1     Setoff.........................................................................................65
         11.2     Ratable Payments...............................................................................65

Article XII

         BENEFIT OF AGREEMENT; ASSIGNMENTS; PARTICIPATIONS.......................................................66

         12.1     Successors and Assigns.........................................................................66
         12.2     Participations.................................................................................66
                  12.2.1   Permitted Participants; Effect........................................................66
                  12.2.2   Voting Rights.........................................................................66
                  12.2.3   Benefit of Setoff.....................................................................66
         12.3     Assignments....................................................................................67
                  12.3.1   Permitted Assignments.................................................................67
                  12.3.2   Effect; Effective Date................................................................67
         12.4     Dissemination of Information...................................................................67
         12.5     Tax Treatment..................................................................................67

Article XIII

         NOTICES.................................................................................................68

         13.1     Giving Notice..................................................................................68
         13.2     Change of Address..............................................................................68
</TABLE>


                                      -v-
<PAGE>   7
                                    EXHIBITS

Exhibit A      -    Ratable Notes
Exhibit B      -    Competitive Bid Note
Exhibit C      -    Competitive Bid Quote Request
Exhibit D      -    Invitation for Competitive Bid Quotes
Exhibit E      -    Competitive Bid Quote
Exhibit F      -    Compliance Certificate
Exhibit G      -    Assignment Agreement

                                    SCHEDULES

Schedule 5.3   -    Approvals and Consents
Schedule 5.4   -    Governmental Consents
Schedule 5.7   -    Taxes
Schedule 5.9        Capitalization
Schedule 5.10  -    ERISA
Schedule 5.16  -    Owned Properties
Schedule 5.17  -    Indebtedness
Schedule 5.19  -    Environmental
Schedule 5.21  -    Insurance Licenses
Schedule 6.11  -    Closing Date Indebtedness
Schedule 6.14  -    Investments
Schedule 6.16  -    Liens


                                      -vi-
<PAGE>   8
                      AMENDED AND RESTATED CREDIT AGREEMENT


         This Amended and Restated Credit Agreement, dated as of December 31,
1998, is among UNDERWRITERS RE GROUP, INC., a Delaware corporation, the Lenders
and THE FIRST NATIONAL BANK OF CHICAGO, as Agent and in its individual capacity
as a Lender.

                                R E C I T A L S:

         A.       The Borrower (formerly URC Holdings Corp.) previously entered
into that certain Credit Agreement dated as of October 23, 1996 with the lenders
named therein and the Agent (the "Existing Credit Agreement"), pursuant to which
such lenders agreed to make financial accommodations to it in the aggregate
principal amount of $50,000,000, the proceeds of which were to be used for the
general corporate needs of the Borrower and its Subsidiaries.

         B.       The Borrower, the Lenders and the Agent wish to make certain
amendments to the Existing Credit Agreement, including the termination of a
$7,000,000 commitment of one of the lenders under the Existing Credit Agreement.

         C.       Lenders are willing to continue to extend such financial
accommodations on the terms and conditions set forth herein.

         NOW, THEREFORE, in consideration of the mutual covenants and
undertakings herein contained, and for other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the Borrower, the
Lenders and the Agent hereby agree that the Existing Credit Agreement is hereby
amended and restated, effective as of the Restatement Date, as follows:

                                   Article I

                                   DEFINITIONS

         As used in this Agreement:

         "Absolute Rate" means, with respect to an Absolute Rate Loan made by a
given Lender for the relevant Absolute Rate Interest Period, the rate of
interest per annum (rounded to the nearest 1/100 of 1%) offered by such Lender
and accepted by the Borrower.
<PAGE>   9
         "Absolute Rate Advance" means a borrowing hereunder consisting of the
aggregate amount of the several Absolute Rate Loans made by some or all of the
Lenders to the Borrower at the same time and for the same Interest Period.

         "Absolute Rate Auction" means a solicitation of Competitive Bid Quotes
setting forth Absolute Rates pursuant to Section 2.3.

         "Absolute Rate Interest Period" means, with respect to an Absolute Rate
Advance, a period of not less than 7 and not more than 180 days commencing on a
Business Day selected by the Borrower pursuant to this Agreement. If such
Absolute Rate Interest Period would end on a day which is not a Business Day,
such Absolute Rate Interest Period shall end on the next succeeding Business
Day.

         "Absolute Rate Loan" means a Loan which bears interest at the Absolute
Rate.

         "Adjusted Leverage Ratio" means "Leverage Ratio"; provided, that each
reference to "Indebtedness" therein shall be deemed to exclude Indebtedness on
account of undrawn amounts of Letters of Credit provided to beneficiaries in the
ordinary course of business.

         "Advance" means a borrowing hereunder consisting of the aggregate
amount of the several Loans made by some or all of the Lenders to the Borrower
on the same Borrowing Date, of the same Type (or on the same interest basis in
the case of Competitive Bid Advances) and, when applicable, for the same
Interest Period and includes a Competitive Bid Advance.

         "Affected Lender" is defined in Section 3.6.

         "Affiliate" of any Person means any other Person directly or indirectly
controlling, controlled by or under common control with such Person. For the
purposes of this Agreement, a Person shall be deemed to control another Person
if the controlling Person owns 10% or more of any class of voting securities (or
other ownership interests) of the controlled Person or possesses, directly or
indirectly, the power to direct or cause the direction of the management or
policies of the controlled Person, whether through ownership of stock, by
contract or otherwise.

         "Agent" means First Chicago in its capacity as agent for the Lenders
pursuant to Article X, and not in its individual capacity as a Lender, and any
successor Agent appointed pursuant to Article X.

         "Aggregate Commitment" means the aggregate of the Commitments of all
the Lenders hereunder. The initial Aggregate Commitment is $43,000,000.

         "Agreement" means this Credit Agreement, as it may be amended, modified
or restated and in effect from time to time.


                                      -2-
<PAGE>   10
         "Agreement Accounting Principles" means generally accepted accounting
principles as in effect in the United States from time to time, applied in a
manner consistent with those used in preparing the financial statements referred
to in Section 5.5(a) and (b); provided, that with respect to the financial
covenants contained in Section 6.22 hereof, the related definitions, and the
computations required thereby, such term means generally accepted accounting
principles (except where SAP is applicable) in effect in the United States on
the date hereof, applied in a manner consistent with those used in preparing the
financial statements referred to in Section 5.5(a) and (b).

         "Alleghany" means Alleghany Corporation, a Delaware corporation.

         "Annual Statement" means the annual statutory financial statement of
any Insurance Subsidiary required to be filed with the insurance commissioner
(or similar authority) of its jurisdiction of incorporation, which statement
shall be in the form required by such Insurance Subsidiary's jurisdiction of
incorporation or, if no specific form is so required, in the form of financial
statements permitted by such insurance commissioner (or such similar authority)
to be used for filing annual statutory financial statements and shall contain
the type of information permitted by such insurance commissioner (or such
similar authority) to be disclosed therein, together with all exhibits or
schedules filed therewith.

         "Applicable Eurodollar Margin" means, on any date, subject to the
following sentence of this definition, the applicable of the following
percentages:

<TABLE>
<CAPTION>
                                                          Applicable
             Debt Rating on Such Date                  Eurodollar Margin
             ------------------------                  -----------------
<S>                                                    <C> 
             Level I Status                                .36%
             Level II Status                               .425%
             Level III Status                              .475%
             Level IV Status                               .50%
             Level V Status                                .575%
</TABLE>

Any change in the Applicable Eurodollar Margin shall be effective as of the date
on which the Borrower has received official notification of the change in the
Debt Rating giving rise thereto and shall apply during the period commencing on
the effective date of such change and ending on the date immediately preceding
the effective date of the next such change.

         "Applicable Facility Fee Percentage" means, on any date, subject to the
following sentence of this definition, the applicable of the following
percentages:


                                      -3-
<PAGE>   11
<TABLE>
<CAPTION>
                                                           Applicable
             Debt Rating on Such Date                  Eurodollar Margin
             ------------------------                  -----------------
<S>                                                    <C> 
             Level I Status                                .09%
             Level II Status                               .10%
             Level III Status                              .125%
             Level IV Status                               .15%
             Level V Status                                .175%
</TABLE>

Any change in the Applicable Facility Fee Percentage shall be effective as of
the date on which the Borrower has received official notification of the change
in the Debt Rating giving rise thereto and shall apply during the period
commencing on the effective date of such change and ending on the date
immediately preceding the effective date of the next such change.

         "Arranger" means First Chicago Capital Markets, Inc., and its
successors and assigns.

         "Article" means an article of this Agreement unless another document is
specifically referenced.

         "Authorized Officer" means any of the chief executive officer or chief
financial officer of the Borrower, acting singly.

         "Bankruptcy Code" means Title 11, United States Code, sections 1 et
seq., as the same may be amended from time to time, and any successor thereto or
replacement therefor which may be hereafter enacted.

         "Borrower" means Underwriters Re Group, Inc., a Delaware corporation,
and its successors and assigns.

         "Borrowing Date" means a date on which an Advance is made hereunder.

         "Business Day" means (a) with respect to any borrowing, payment or rate
selection of Eurodollar Advances, a day (other than a Saturday or Sunday) on
which banks generally are open in Chicago for the conduct of substantially all
of their commercial lending activities and on which dealings in United States
dollars are carried on in the London interbank market, and (b) for all other
purposes, a day (other than a Saturday or Sunday) on which banks generally are
open in Chicago for the conduct of substantially all of their commercial lending
activities.


                                      -4-
<PAGE>   12
         "Capitalized Lease" of a Person means any lease of Property by such
Person as lessee which would be capitalized on a balance sheet of such Person
prepared in accordance with Agreement Accounting Principles.

         "Capitalized Lease Obligations" of a Person means the amount of the
obligations of such Person under Capitalized Leases which would be shown as a
liability on a balance sheet of such Person prepared in accordance with
Agreement Accounting Principles.

         "Cash Equivalents" means Investments maturing within one year from the
date of investment (excluding (x) Investments as to which the principal amount
to be repaid may be subject to fluctuation and (y) mortgage backed securities
consisting of principal only or interest only strips) in (a) certificates of
deposit, Eurodollar time deposits and other interest bearing deposits or
accounts with United States commercial banks having a combined capital and
surplus of at least $500,000,000 and rated C or better by Thomson BankWatch or
with any Lender, (b) certificates of deposit, other interest bearing accounts or
deposits and demand deposits with other United States commercial banks, which
deposits and accounts are in amounts fully insured by the Federal Deposit
Insurance Corporation, (c) obligations issued or unconditionally guaranteed by
the United States government or issued by an agency thereof and backed by the
full faith and credit of the United States, (d) direct obligations issued by any
state of the United States or any political subdivision thereof which have the
highest rating obtainable from S&P on the date of investment, (e) commercial
paper rated A-1 or better by S&P and P-1 or better by Moody's or (f) money
market mutual funds identified by the valuation office of the NAIC as requiring
no investment reserve.

         "Change" is defined in Section 3.2.

         "Change in Control" means (a) Alleghany shall fail to maintain
beneficial ownership, directly or indirectly, free and clear of any Lien, of at
least 51% of the outstanding voting stock of the Borrower (unless such failure
arises from a Public Offering and no Person (other than Alleghany) or Persons
acting in concert acquire (either in such Public Offering or thereafter)
beneficial ownership (within the meaning of Rule 13d-3 of the Securities and
Exchange Commission under the Securities Exchange Act of 1934) of 10% or more of
the outstanding voting stock of the Borrower), (b) during any period of 25
consecutive calendar months, commencing on the date of this Agreement, the
ceasing of those individuals (the "Continuing Directors") who (i) were directors
of the Borrower on the first day of each such period or (ii) subsequently became
directors of the Borrower and whose initial election or initial nomination for
election subsequent to that date was approved by a majority of the Continuing
Directors then on the board of directors of the Borrower, to constitute a
majority of the board of directors of the Borrower, or (c) any "Credit Party"
(as defined in the Venton Credit Agreement) other than the Borrower shall cease
to be a Wholly-Owned Subsidiary of the Borrower (it being understood that a
merger of a Credit Party into an entity which is a Wholly-Owned Subsidiary of
the Borrower, to the extent otherwise permitted under this Agreement, will not
be deemed to cause such Credit Party to cease to be a Wholly-Owned Subsidiary of
the Borrower for purposes of this definition).


                                      -5-
<PAGE>   13
         "Closing Date" means October 23, 1996.

         "Closing Transactions" is defined in Section 4.1(d).

         "Code" means the Internal Revenue Code of 1986, as amended, reformed or
otherwise modified from time to time.

         "Commitment" means, for each Lender, the obligation of such Lender to
make Ratable Loans not exceeding the amount set forth opposite its signature
below and as set forth in any Notice of Assignment relating to any assignment
which has become effective pursuant to Section 12.3.2, as such amount may be
modified from time to time pursuant to the terms hereof.

         "Competitive Bid Advance" means a borrowing hereunder consisting of the
aggregate amount of the several Competitive Bid Loans made by some or all of the
Lenders to the Borrower at the same time and for the same Interest Period.

         "Competitive Bid Borrowing Notice" is defined in Section 2.3.6.

         "Competitive Bid Loan" means a Eurodollar Bid Rate Loan or an Absolute
Rate Loan, or both, as the case may be.

         "Competitive Bid Margin" means the margin above or below the applicable
Eurodollar Base Rate offered for a Eurodollar Bid Rate Loan, expressed as a
percentage (rounded to the nearest 1/100 of 1%) to be added or subtracted from
such Eurodollar Base Rate.

         "Competitive Bid Note" means a promissory note in substantially the
form of Exhibit B hereto, with appropriate insertions, duly executed and
delivered to the Agent by the Borrower for the account of a Lender and payable
to the order of such Lender, including any amendment, modification, renewal or
replacement of such promissory note.

         "Competitive Bid Quote" means a Competitive Bid Quote substantially in
the form of Exhibit E hereto completed and delivered by a Lender to the Agent in
accordance with Section 2.3.4.

         "Competitive Bid Quote Request" means a Competitive Bid Quote Request
substantially in the form of Exhibit C hereto completed and delivered by the
Borrower to the Agent in accordance with Section 2.3.2.

         "Condemnation" is defined in Section 7.8.


                                      -6-
<PAGE>   14
         "Consolidated" or "consolidated", when used in connection with any
calculation, means a calculation to be determined on a consolidated basis for
the Borrower and its Subsidiaries in accordance with Agreement Accounting
Principles.

         "Consolidated Person" means, for the taxable year of reference of
Alleghany, each Person which has joined or which is required to join in the
filing of a consolidated federal income tax return with Alleghany.

         "Contingent Obligation" of a Person means any agreement, undertaking or
arrangement by which such Person assumes, guarantees, endorses, contingently
agrees to purchase or provide funds for the payment of, or otherwise becomes or
is contingently liable upon, the obligation or liability of any other Person, or
agrees to maintain the net worth or working capital or other financial condition
of any other Person, or otherwise assures any creditor of such other Person
against loss, including, without limitation, any comfort letter, operating
agreement or take-or-pay contract.

         "Controlled Group" means all members of a controlled group of
corporations and all trades or businesses (whether or not incorporated) under
common control which, together with the Borrower or any of its Subsidiaries, are
treated as a single employer under Section 414 of the Code.

         "Conversion/Continuation Notice" is defined in Section 2.2.4.

         "Corporate Base Rate" means a rate per annum equal to the corporate
base rate of interest announced by First Chicago from time to time, changing
when and as said corporate base rate changes. The Corporate Base Rate is a
reference rate and does not necessarily represent the lowest or best rate of
interest actually charged to any customer. First Chicago may make commercial
loans or other loans at rates of interest at, above or below the Corporate Base
Rate.

         "Debt Rating" means the credit rating assigned to the Borrower's
senior, unsecured long term Indebtedness (without credit enhancement) as
publicly announced by Moody's or S&P, as the case may be. If the rating system
of Moody's or S&P shall materially change from that in effect on the date of
this Agreement, then the parties hereto shall negotiate in good faith to amend
the references to such ratings in this Agreement to fairly reflect such changes.

         "Default" means an event described in Article VII.

         "Departing Lender" means Union Bank of California, N.A.

         "Environmental Laws" is defined in Section 5.19.

         "Environmental Permits" is defined in Section 5.19.


                                      -7-
<PAGE>   15
         "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended from time to time.

         "Eurodollar Advance" means a Eurodollar Bid Rate Advance or a
Eurodollar Ratable Advance, or both, as the case may be.

         "Eurodollar Auction" means a solicitation of Competitive Bid Quotes
setting forth Eurodollar Bid Rates pursuant to Section 2.3.

         "Eurodollar Base Rate" means, with respect to a Eurodollar Advance for
the relevant Eurodollar Interest Period, the rate determined by the Agent to be
the rate at which deposits in U.S. dollars are offered by First Chicago to
first-class banks in the London interbank market at approximately 11 a.m.
(London time) two Business Days prior to the first day of such Eurodollar
Interest Period, in the approximate amount of First Chicago's relevant
Eurodollar Ratable Loan (or in the case of a Eurodollar Bid Rate Advance, in an
amount comparable to the amount of such Advance) and having a maturity
approximately equal to such Eurodollar Interest Period.

         "Eurodollar Bid Rate" means, with respect to a Eurodollar Bid Rate Loan
made by a given Lender for the relevant Eurodollar Interest Period, the sum of
(a) the Eurodollar Base Rate and (b) the Competitive Bid Margin offered by such
Lender and accepted by the Borrower.

         "Eurodollar Bid Rate Advance" means a Competitive Bid Advance which
bears interest at a Eurodollar Bid Rate.

         "Eurodollar Bid Rate Loan" means a Loan which bears interest at the
Eurodollar Bid Rate.

         "Eurodollar Interest Period" means, with respect to a Eurodollar
Ratable Advance or a Eurodollar Bid Rate Advance, a period of one, two, three or
six months commencing on a Business Day selected by the Borrower pursuant to
this Agreement. Such Eurodollar Interest Period shall end on (but exclude) the
day which corresponds numerically to such date one, two, three or six months
thereafter; provided, however, that if there is no such numerically
corresponding day in such next, second, third or sixth succeeding month, such
Eurodollar Interest Period shall end on the last Business Day of such next,
second, third or sixth succeeding month. If a Eurodollar Interest Period would
otherwise end on a day which is not a Business Day, such Eurodollar Interest
Period shall end on the next succeeding Business Day; provided, however, that if
said next succeeding Business Day falls in a new month, such Eurodollar Interest
Period shall end on the immediately preceding Business Day.

         "Eurodollar Loan" means a Eurodollar Ratable Loan or Eurodollar Bid
Rate Loan, or both, as the case may be.


                                      -8-
<PAGE>   16
         "Eurodollar Ratable Advance" means an Advance which bears interest at a
Eurodollar Rate requested by the Borrower pursuant to Section 2.2.3.

         "Eurodollar Ratable Loan" means a Loan which bears interest at a
Eurodollar Rate requested by the Borrower pursuant to Section 2.2.3.

         "Eurodollar Rate" means, with respect to a Eurodollar Ratable Advance
for the relevant Eurodollar Interest Period, the sum of (a) the quotient of (i)
the Eurodollar Base Rate applicable to such Eurodollar Interest Period, divided
by (ii) one minus the Reserve Requirement (expressed as a decimal) applicable to
such Eurodollar Interest Period, plus (b) the Applicable Eurodollar Margin or
Margins, as applicable, for such Eurodollar Interest Period. The Eurodollar Rate
shall be rounded to the next higher multiple of 1/16 of 1% if the rate is not
such a multiple.

         "Existing Credit Agreement" is defined in the Recitals to this
Agreement.

         "Facility Termination Date" means December 30, 1999.

         "Federal Funds Effective Rate" means, for any day, an interest rate per
annum equal to the weighted average of the rates on overnight Federal funds
transactions with members of the Federal Reserve System arranged by Federal
funds brokers on such day, as published for such day (or, if such day is not a
Business Day, for the immediately preceding Business Day) by the Federal Reserve
Bank of New York, or, if such rate is not so published for any day which is a
Business Day, the average of the quotations at approximately 10 a.m. (Chicago
time) on such day on such transactions received by the Agent from three Federal
funds brokers of recognized standing selected by the Agent in its sole
discretion.

         "Financial Statements" is defined in Section 5.5.

         "First Chicago" means The First National Bank of Chicago in its
individual capacity as a Lender and not in its capacity as Agent, and its
successors.

         "Fiscal Quarter" means one of the four three-month accounting periods
comprising a Fiscal Year.

         "Fiscal Year" means the twelve-month accounting period ending December
31 of each year.

         "Floating Rate" means, for any day, a rate per annum equal to the
higher of (a) the Corporate Base Rate for such day, or (b) the sum of the
Federal Funds Effective Rate for such day plus one-half percent (.50%) per
annum.


                                      -9-
<PAGE>   17
         "Floating Rate Advance" means an Advance which bears interest at the
Floating Rate.

         "Floating Rate Loan" means a Ratable Loan which bears interest at the
Floating Rate.

         "Governmental Authority" means any government (foreign or domestic) or
any state or other political subdivision thereof or any governmental body,
agency, authority, department or commission (including without limitation any
board of insurance, insurance department or insurance commissioner or any taxing
authority or political subdivision) or any instrumentality or officer thereof
(including without limitation any court or tribunal) exercising executive,
legislative, judicial, regulatory or administrative functions of or pertaining
to government and any corporation, partnership or other entity directly or
indirectly owned or controlled by or subject to the control of any of the
foregoing.

         "Guaranty" means that certain Guaranty dated as of the Restatement Date
by URC in favor of the Agent and the Lenders.

         "Hazardous Materials" is defined in Section 5.19.

         "Indebtedness" of a Person means such Person's (a) obligations for
borrowed money, (b) obligations representing the deferred purchase price of
Property or services (other than accounts payable arising in the ordinary course
of such Person's business payable on terms customary in the trade), (c)
obligations, whether or not assumed, secured by Liens or payable out of the
proceeds or production from Property now or hereafter owned or acquired by such
Person, (d) obligations which are evidenced by notes, acceptances, or similar
instruments, (e) Capitalized Lease Obligations, (f) Rate Hedging Obligations,
(g) Contingent Obligations, (h) obligations for which such Person is obligated
(contingently, including with respect to undrawn amounts of issued Letters of
Credit, or otherwise) pursuant to or in respect of a Letter of Credit and (i)
repurchase obligations or liabilities of such Person with respect to accounts or
notes receivable sold by such Person.

         "Insurance Subsidiary" means any direct or indirect present or future
Subsidiary which is engaged in the insurance business (and shall in any event
include URC), but excluding each of the Venton Entities.

         "Interest Period" means a Eurodollar Interest Period or an Absolute
Rate Interest Period.

         "Investment" of a Person means any loan, advance (other than
commission, travel and similar advances to officers and employees made in the
ordinary course of business), extension of credit (other than accounts
receivable arising in the ordinary course of business on terms customary in the
trade), deposit account or contribution of capital by such Person to any other
Person or any investment in, or purchase or other acquisition of, the stock,
partnership interests, notes, debentures or other securities of any other Person
made by such Person.


                                      -10-
<PAGE>   18
         "Invitation for Competitive Bid Quotes" means an Invitation for
Competitive Bid Quotes substantially in the form of Exhibit D hereto, completed
and delivered by the Agent to the Lenders in accordance with Section 2.3.3.

         "Lenders" means the lending institutions listed on the signature pages
of this Agreement and their respective successors and assigns.

         "Lending Installation" means, with respect to a Lender or the Agent,
any office, branch, subsidiary or affiliate of such Lender or the Agent.

         "Letter of Credit" of a Person means a letter of credit or similar
instrument which is issued upon the application of such Person or upon which
such Person is an account party or for which such Person is in any way liable.

         "Level I Status" exists at any date if at such date the Debt Rating is
(a) A2 (or the equivalent) or higher by Moody's or A (or the equivalent) or
higher by S&P and (b) not lower than Baa3 (or the equivalent) by Moody's or BBB-
(or the equivalent) by S&P.

         "Level II Status" exists at any date if at such date (a) the Debt
Rating is A3 (or the equivalent) or higher by Moody's or A- (or the equivalent)
or higher by S&P, (b) the Debt Rating is not lower than Baa3 (or the equivalent)
by Moody's or BBB- (or the equivalent) by S&P and (c) Level I Status does not
exist.

         "Level III Status" exists at any date if at such date (a) the Debt
Rating is Baa1 (or the equivalent) or higher by Moody's or BBB+ (or the
equivalent) or higher by S&P, (b) the Debt Rating is not lower than Baa3 (or the
equivalent) by Moody's or BBB- (or the equivalent) by S&P and (c) neither Level
I Status nor Level II Status exists.

         "Level IV Status" exists at any date if at such date (a) the Debt
Rating is Baa3 (or the equivalent) or higher by Moody's and BBB- (or the
equivalent) or higher by S&P and (b) none of Level I Status, Level II Status or
Level III Status exists.

         "Level V Status" exists at any date if at such date (a) the Debt Rating
is lower than Baa3 (or the equivalent) by Moody's or lower than BBB- (or the
equivalent) by S&P or (b) the Borrower's senior, unsecured long term
Indebtedness (without credit enhancement) is unrated by both Moody's and S&P.

         "Leverage Ratio" means, with respect to the Borrower on a consolidated
basis with its Subsidiaries, at any time, the ratio of (a) Indebtedness to (b)
the sum of (i) Indebtedness and (ii) Net Worth, excluding the impact of
Statement of Financial Accounting Standards No. 115. For the purpose of
determining this ratio, Contingent Obligations shall be excluded from


                                      -11-
<PAGE>   19
Indebtedness to the extent that they relate to underlying obligations which are
included in Indebtedness with respect to the Borrower on a consolidated basis
with its Subsidiaries.

         "License" means any license, certificate of authority, permit or other
authorization which is required to be obtained from any Governmental Authority
in connection with the operation, ownership or transaction of insurance
business.

         "Lien" means any security interest, lien (statutory or other),
mortgage, pledge, hypothecation, assignment, deposit arrangement, encumbrance or
preference, priority or other security agreement or preferential arrangement of
any kind or nature whatsoever (including, without limitation, the interest of a
vendor or lessor under any conditional sale, Capitalized Lease or other title
retention agreement).

         "Loan" means, with respect to a Lender, such Lender's portion of any
Advance and "Loans" means, with respect to the Lenders, the aggregate of all
Advances.

         "Loan Documents" means this Agreement, the Notes, the Guaranty and the
other documents and agreements contemplated hereby and executed by the Borrower
or any Subsidiary in favor of the Agent or any Lender.

         "Margin Stock" has the meaning assigned to that term under Regulation
U.

         "Material Adverse Effect" means a material adverse effect on (a) the
business, Property, condition (financial or other), performance, operations, or
prospects of the Borrower and its Subsidiaries, taken as a whole, (b) the
ability of the Borrower to perform its obligations under the Loan Documents, or
(c) the validity or enforceability of any of the Loan Documents or the rights or
remedies of the Agent or the Lenders thereunder.

         "Moody's" means Moody's Investors Service, Inc., a Delaware
corporation, together with any Person succeeding thereto by merger,
consolidation or acquisition of all or substantially all of its assets,
including substantially all of its business of rating securities.

         "Multiemployer Plan" means a Plan maintained pursuant to a collective
bargaining agreement which is subject to Title IV of ERISA to which the Borrower
or any member of the Controlled Group is a party to which more than one employer
is obligated to make contributions.

         "NAIC" means the National Association of Insurance Commissioners or any
successor thereto, or in lieu thereof, any other association, agency or other
organization performing advisory, coordination or other like functions among
insurance departments, insurance commissioners and similar Governmental
Authorities of the various states of the United States toward the promotion of
uniformity in the practices of such Governmental Authorities.


                                      -12-
<PAGE>   20
         "Net Worth" means at any date the stockholders' equity of the Borrower
and its Subsidiaries determined on a consolidated basis in accordance with
Agreement Accounting Principles.

         "Notes" means, collectively, the Competitive Bid Notes and the Ratable
Notes; and "Note" means any one of the Notes.

         "Notice of Assignment" is defined in Section 12.3.2.

         "Obligations" means all unpaid principal of and accrued and unpaid
interest on the Notes, all accrued and unpaid fees and all expenses,
reimbursements, indemnities and other obligations of the Borrower to the Lenders
or to any Lender, the Agent or any indemnified party hereunder arising under any
of the Loan Documents and any Rate Hedging Obligations or foreign exchange
contracts of the Borrower owing to the Agent or any Lender.

         "Participants" is defined in Section 12.2.1.

         "Payment Date" means the last day of each March, June, September and
December.

         "PBGC" means the Pension Benefit Guaranty Corporation or any successor
thereto.

         "Person" means any natural person, corporation, firm, limited liability
company, joint venture, partnership, association, enterprise, trust or other
entity or organization, or any government or political subdivision or any
agency, department or instrumentality thereof.

         "Plan" means an employee pension benefit plan, as defined in Section
3(2) of ERISA, as to which the Borrower or any member of the Controlled Group
may have any liability.

         "Property" of a Person means any and all property, whether real,
personal, tangible, intangible, or mixed, of such Person, or other assets owned,
leased or operated by such Person.

         "pro-rata" means, when used with respect to a Lender, and any described
aggregate or total amount, an amount equal to such Lender's pro-rata share or
portion based on its percentage of the Aggregate Commitment or if the Aggregate
Commitment has been terminated, its percentage of the aggregate principal amount
of outstanding Loans.

         "Public Offering" means any public offering after the date hereof of
shares of the Borrower's common stock, or options, warrants or securities
convertible into or exchangeable for, or rights to acquire, shares of such
common stock, which is registered pursuant to an effective registration
statement filed by the Borrower under the Securities Act (other than (a) a
registration statement filed on Form S-4 (or any successor form thereto) or (b)
a registration 


                                      -13-
<PAGE>   21
statement filed on Form S-8 (or any successor form thereto), or any other
applicable form with respect to the issuance of shares of such common stock, or
options, warrants or securities convertible into or exchangeable for, or rights
to acquire, such shares of common stock, issued or to be issued or granted to
directors, officers or employees of the Borrower and its Subsidiaries).

         "Purchase" means any transaction, or any series of related
transactions, consummated on or after the date of this Agreement, by which the
Borrower or any of its Subsidiaries (a) acquires any going business or all or
substantially all of the assets of any firm, corporation or division or line of
business thereof, whether through purchase of assets, merger or otherwise, or
(b) directly or indirectly acquires (in one transaction or as the most recent
transaction in a series of transactions) at least a majority (in number of
votes) of the securities of a corporation which have ordinary voting power for
the election of directors (other than securities having such power only by
reason of the happening of a contingency) or a majority (by percentage or voting
power) of the outstanding partnership interests of a partnership or membership
interests of a limited liability company.

         "Purchasers" is defined in Section 12.3.1.

         "Quarterly Statement" means the quarterly statutory financial statement
of any Insurance Subsidiary required to be filed with the insurance commissioner
(or similar authority) of its jurisdiction of incorporation or, if no specific
form is so required, in the form of financial statements permitted by such
insurance commissioner (or such similar authority) to be used for filing
quarterly statutory financial statements and shall contain the type of financial
information permitted by such insurance commissioner (or such similar authority)
to be disclosed therein, together with all exhibits or schedules filed
therewith.

         "Ratable Advance" means a borrowing hereunder consisting of the
aggregate amount of the several Ratable Loans made by the Lenders to the
Borrower at the same time, of the same Type and for the same Interest Period.

         "Ratable Borrowing Notice" is defined in Section 2.2.3.

         "Ratable Loan" means a Loan made by a Lender pursuant to Section 2.2
hereof.

         "Ratable Note" means a promissory note in substantially the form of
Exhibit A hereto, duly executed and delivered to the Agent by the Borrower for
the account of each Lender and payable to the order of a Lender in the amount of
its Commitment, including any amendment, modification, renewal or replacement of
such promissory note.

         "Rate Hedging Obligations" of a Person means any and all obligations of
such Person, whether absolute or contingent and howsoever and whensoever
created, arising, evidenced or acquired (including all renewals, extensions and
modifications thereof and substitutions 


                                      -14-
<PAGE>   22
therefor), under (a) any and all agreements, devices or arrangements designed to
protect at least one of the parties thereto from the fluctuations of interest
rates, exchange rates or forward rates applicable to such party's assets,
liabilities or exchange transactions, including, but not limited to,
dollar-denominated or cross-currency interest rate exchange agreements, forward
currency exchange agreements, interest rate cap or collar protection agreements,
forward rate currency or interest rate options, puts and warrants, and (b) any
and all cancellations, buybacks, reversals, terminations or assignments of any
of the foregoing.

         "Regulation D" means Regulation D of the Board of Governors of the
Federal Reserve System as from time to time in effect and any successor thereto
or other regulation or official interpretation of said Board of Governors
relating to reserve requirements applicable to depositary institutions.

         "Regulation T" means Regulation T of the Board of Governors of the
Federal Reserve System as from time to time in effect and shall include any
successor or other regulation or official interpretation of such Board of
Governors relating to the extension of credit by securities brokers and dealers
for the purpose of purchasing or carrying margin stocks applicable to such
Persons.

         "Regulation U" means Regulation U of the Board of Governors of the
Federal Reserve System as from time to time in effect and any successor or other
regulation or official interpretation of said Board of Governors relating to the
extension of credit by banks for the purpose of purchasing or carrying margin
stocks applicable to such Persons.

         "Regulation X" means Regulation X of the Board of Governors of the
Federal Reserve System as from time to time in effect and shall include any
successor or other regulation or official interpretation of said Board of
Governors relating to the extension of credit by the specified lenders for the
purpose of purchasing or carrying margin stocks applicable to such Persons.

         "Release" is defined in the Comprehensive Environmental Response,
Compensation and Liability Act, as amended, 42 U.S.C. 39601 et seq.

         "Replacement Lender" is defined in Section 3.6.

         "Reportable Event" means a reportable event as defined in Section
4043(a) of ERISA and the regulations issued under such section, with respect to
a Plan, excluding, however, such events as to which the PBGC has by regulation
unconditionally or conditionally waived the requirement of Section 4043(a) of
ERISA that it be notified within 30 days of the occurrence of such event;
provided, that a failure to meet the minimum funding standard of Section 412 of
the Code and of Section 302 of ERISA shall be a Reportable Event regardless of
the issuance of any such waiver 


                                      -15-
<PAGE>   23
of the notice requirement in accordance with either Section 4043(a) of ERISA or
Section 412(d) of the Code.

         "Required Lenders" means Lenders in the aggregate having at least
66-2/3% of the Aggregate Commitment or, if the Aggregate Commitment has been
terminated, Lenders in the aggregate holding at least 66-2/3% of the aggregate
unpaid principal amount of the outstanding Loans.

         "Reserve Requirement" means, with respect to an Interest Period, the
maximum aggregate reserve requirement (including all basic, supplemental,
marginal and other reserves) which is imposed under Regulation D on Eurocurrency
liabilities.

         "Restatement Date" means December 31, 1998.

         "Risk-Based Capital Guidelines" is defined in Section 3.2.

         "S&P" means Standard & Poor's Ratings Group, a division of McGraw-Hill,
Inc., together with any Person succeeding thereto by merger, consolidation or
acquisition of all or substantially all of its assets, including substantially
all of its business of rating securities.

         "SAP" means, with respect to any Insurance Subsidiary, the statutory
accounting practices prescribed or permitted by the insurance commissioner (or
other similar authority, including the Council of Lloyd's) in the jurisdiction
of such Insurance Subsidiary for the preparation of annual statements and other
financial reports by insurance companies of the same type as such Insurance
Subsidiary in effect from time to time, applied in a manner consistent with
those used in preparing the financial statements referred to in Section 5.5(c)
and (d); provided, that with respect to the financial covenants contained in
Section 6.22 hereof, the related definitions, and the computations required
thereby, "SAP" means such statutory accounting practices (except where Agreement
Accounting Principles are applicable) in effect on the date hereof, applied in a
manner consistent with those used in preparing the financial statements referred
to in Section 5.5(c) and (d).

         "Section" means a numbered section of this Agreement, unless another
document is specifically referenced.

         "Single Employer Plan" means a Plan subject to Title IV of ERISA
maintained by the Borrower or any member of the Controlled Group for employees
of the Borrower or any member of the Controlled Group, other than a
Multiemployer Plan.

         "Solvent" means, when used with respect to a Person, that (a) the fair
saleable value of the assets of such Person is in excess of the total amount of
the present value of its liabilities (including for purposes of this definition
all liabilities (including loss reserves as determined by 


                                      -16-
<PAGE>   24
such Person), whether or not reflected on a balance sheet prepared in accordance
with Agreement Accounting Principles and whether direct or indirect, fixed or
contingent, secured or unsecured, disputed or undisputed), (b) such Person is
able to pay its debts or obligations in the ordinary course as they mature and
(c) such Person does not have unreasonably small capital to carry on its
business as conducted and as proposed to be conducted. "Solvency" shall have a
correlative meaning.

         "Statutory Authorized Control Level Risk-Based Capital" means, with
respect to any Insurance Subsidiary at any time, the statutory authorized
control level risk-based capital of such Insurance Subsidiary at such time, as
determined in accordance with SAP (currently "Five Year Historical Data", Line
26 of the Annual Statement), based on methodology of the NAIC in effect on the
date hereof.

         "Statutory Net Income" means, with respect to any Insurance Subsidiary
for any computation period, the net income earned by such Person during such
period, as determined in accordance with SAP ("Underwriting and Investment"
exhibit, "Statement of Income", Line 16 of the Annual Statement).

         "Statutory Risk-Based Capital Ratio" means, with respect to URC and its
Insurance Subsidiaries, determined on a combined basis for URC and all of its
Insurance Subsidiaries (without double counting), the ratio of (a) Statutory
Total Adjusted Capital to (b) Statutory Authorized Control Level Risk-Based
Capital.

         "Statutory Surplus" means, with respect to any Insurance Subsidiary at
any time, the surplus as regards policyholders of such Insurance Subsidiary at
such time, as determined in accordance with SAP ("Liabilities, Surplus and Other
Funds" statement, Page 3, Line 25, Column 1 of the Annual Statement).

         "Statutory Total Adjusted Capital" means, with respect to any Insurance
Subsidiary at any time, the statutory total adjusted capital of such Insurance
Subsidiary at such time, as determined in accordance with SAP (currently "Five
Year Historical Data," Line 25 of the Annual Statement).

         "Subsidiary" of a Person means (a) any corporation more than 50% of the
outstanding securities having ordinary voting power of which shall at the time
be owned or controlled, directly or indirectly, by such Person or by one or more
of its Subsidiaries or by such Person and one or more of its Subsidiaries, or
(b) any partnership, association, joint venture or similar business organization
more than 50% of the ownership interests having ordinary voting power of which
shall at the time be so owned or controlled. Unless otherwise expressly
provided, all references herein to a "Subsidiary" shall mean a Subsidiary of the
Borrower.


                                      -17-
<PAGE>   25
         "Substantial Portion" means, with respect to the Property of the
Borrower and its Subsidiaries, Property which (a) represents more than 10% of
the consolidated assets of the Borrower and its Subsidiaries, as would be shown
in the consolidated financial statements of the Borrower and its Subsidiaries as
at the end of the Fiscal Quarter next preceding the date on which such
determination is made, or (b) is responsible for more than 10% of the
consolidated net revenues or of the consolidated Net Income of the Borrower and
its Subsidiaries for the 12-month period ending as of the end of the Fiscal
Quarter next preceding the date of determination.

         "Tax Sharing Agreements" means, collectively, that certain Amendment to
Agreement dated as of August 18, 1995 between Alleghany and the Borrower, that
certain Amendment to Agreement dated as of December 1, 1995 between the Borrower
and URC, that certain Amendment to Agreement dated as of December 1, 1995
between the Borrower and URC Risk Managers, Inc., that certain Agreement dated
as of December 1, 1995 between the Borrower and The Underwriting Center, Inc.,
that certain Agreement dated as of December 1, 1995 between The Underwriting
Center, Inc. and The Underwriting Center of Georgia, Inc. (now known as The
Center E&S Insurance Services, Inc.), that certain Amendment to Agreement dated
as of December 1, 1995 between URC and Commercial Underwriters Insurance
Company, and that certain Agreement dated as of December 1, 1995 between URC and
Underwriters Insurance Company, as each is in effect on the date of this
Agreement, together with any other agreements entered into pursuant to Section
6.23, and as any such agreement may be hereafter amended, subject to compliance
with the terms hereof.

         "Termination Event" means, with respect to a Plan which is subject to
Title IV of ERISA, (a) a Reportable Event, (b) the withdrawal of the Borrower or
any other member of the Controlled Group from such Plan during a plan year in
which the Borrower or such member of the Controlled Group was a "substantial
employer" as defined in Section 4001(a)(2) of ERISA or was deemed such under
Section 4068(f) of ERISA, (c) the termination of such Plan, the filing of a
notice of intent to terminate such Plan or the treatment of an amendment of such
Plan as a termination under Section 4041 of ERISA, (d) the institution by the
PBGC of proceedings to terminate such Plan or (e) any event or condition which
could reasonably be expected to constitute grounds under Section 4042 of ERISA
for the termination of, or appointment of a trustee to administer, such Plan.

         "Transferee" is defined in Section 12.4.

         "Type" means, with respect to any Advance, its nature as a Floating
Rate Advance, Eurodollar Advance or Absolute Rate Advance.

         "Unfunded Liabilities" means the amount (if any) by which the present
value of all vested and unvested accrued benefits under all Single Employer
Plans exceeds the fair market value of all such Plan assets allocable to such
benefits, all determined as of the then most recent valuation date for such
Plans using PBGC actuarial assumptions for single employer plan terminations.


                                      -18-
<PAGE>   26
         "Unmatured Default" means an event or condition which but for the lapse
of time or the giving of notice, or both, would constitute a Default.

         "URC" means Underwriters Reinsurance Company, a New Hampshire insurance
company and a Wholly-Owned Subsidiary of the Borrower.

         "Venton" means Venton Holdings Ltd., a Bermuda corporation.

         "Venton Credit Agreement" means that certain Letter of Credit Facility
and Reimbursement Agreement dated as of October 23, 1998 and amended as of
November 25, 1998 and December 31, 1998, among Venton Underwriting Group
Limited, Venton Underwriting Limited and Talbot Underwriting Limited, as Account
Parties, the Borrower and URC, as guarantors, Mellon Bank, N.A., as
Administrative Agent and Issuing Bank and as a Co-Arranger, Dresdner Bank AG,
New York and Grand Cayman Branches, as Documentation Agent, and Dresdner
Kleinwort Benson North America LLC, as Co-Arranger, as further amended,
supplemented or modified from time to time.

         "Venton Entities" means, collectively, Venton, Venton Underwriting
Group Limited, an English company, Venton Underwriting Limited, Talbot
Underwriting Limited and each company which is a Subsidiary of Venton on the
date of this Agreement, together with each permitted successor thereto which
does not engage in any business other than the businesses engaged in by the
Venton Entities on the date of this Agreement.

         "Wholly-Owned Subsidiary" of a Person means (a) any Subsidiary all of
the outstanding voting securities of which shall at the time be owned or
controlled, directly or indirectly, by such Person or one or more Wholly-Owned
Subsidiaries of such Person, or by such Person and one or more Wholly-Owned
Subsidiaries of such Person, or (b) any partnership, association, joint venture
or similar business organization 100% of the ownership interests having ordinary
voting power of which shall at the time be so owned or controlled.

         "Year 2000 Problem" means any significant risk that computer hardware,
software or equipment containing embedded microchips of the Borrower or any of
its Subsidiaries which is essential to its business or operations will not, in
the case of dates or time periods occurring after December 31, 1999, function at
least as effectively and reliably as in the case of times or time periods
occurring before January 1, 2000, including the making of accurate leap year
calculations.

         The foregoing definitions shall be equally applicable to both the
singular and plural forms of the defined terms. References herein to particular
columns, lines or sections of any Person's Annual Statement shall be deemed,
where appropriate, to be references to the corresponding column, line or section
of such Person's Quarterly Statement, or if no such corresponding


                                      -19-
<PAGE>   27
column, line or section exists or if any report form changes, then to the
corresponding item referenced thereby.

                                   ARTICLE II

                                  THE FACILITY

         2.1      The Facility.

                  2.1.1    Description of Facility. The Lenders hereby establish
in favor of the Borrower a revolving credit facility pursuant to which, and upon
the terms and subject to the conditions herein set out:

                           (a)      each Lender severally agrees to make Ratable
Loans to the Borrower in accordance with Section 2.2 in amounts not to exceed in
the aggregate at any one time outstanding the amount of such Lender's Commitment
less the amount of such Lender's pro-rata share of the outstanding principal
amount of all Competitive Bid Advances (regardless of which Lender or Lenders
made such Competitive Bid Advances) exclusive of Competitive Bid Advances being
repaid substantially contemporaneously with the making of any such Ratable Loans
(but not later than the close of business on the same day); and

                           (b)      each Lender may, in its sole discretion,
make bids to make Competitive Bid Loans to the Borrower, and make such Loans, in
accordance with Section 2.3.

                  2.1.2    Facility Amount. In no event may the aggregate
principal amount of all outstanding Advances (including both the Ratable
Advances and the Competitive Bid Advances) at any time exceed the Aggregate
Commitment.

                  2.1.3    Availability of Facility. Subject to the terms of
this Agreement, from and including the date hereof to, but not including, the
Facility Termination Date, the Borrower may borrow, repay and reborrow Advances
hereunder. All outstanding Advances and all other unpaid Obligations shall be
due and payable in full by the Borrower on the Facility Termination Date.

         2.2      Ratable Advances.

                  2.2.1    Ratable Advances. Each Ratable Advance hereunder
shall consist of borrowings made from the several Lenders ratably in proportion
to the amounts of their respective Commitments. The Borrower's obligation to pay
the principal of, and interest on, the Ratable Advances shall be evidenced by
the Ratable Notes. Although the Ratable Notes shall be dated the date of the
initial Advance, interest in respect thereof shall be payable only for the
periods during which the Loans evidenced thereby are outstanding and, although
the stated amount of each Ratable Note shall be equal to the applicable Lender's
Commitment, each Ratable Note shall be enforceable, with respect to the
Borrower's obligation to pay the principal 


                                      -20-
<PAGE>   28
amount thereof, only to the extent of the unpaid principal amount of the Ratable
Loans at the time evidenced thereby.

                  2.2.2    Ratable Advance Rate Options. The Ratable Advances
may be Floating Rate Advances or Eurodollar Ratable Advances, or a combination
thereof, selected by the Borrower in accordance with Section 2.2.3 or 2.2.4. No
Ratable Advance may mature after, or have an Interest Period which extends
beyond, the Facility Termination Date.

                  2.2.3    Method of Selecting Types and Interest Periods for
Ratable Advances. The Borrower shall select the Type of each Ratable Advance
and, in the case of each Eurodollar Ratable Advance, the Eurodollar Interest
Period applicable to such Ratable Advance. The Borrower shall give the Agent
irrevocable notice (a "Ratable Borrowing Notice") not later than 11:00 a.m.
(Chicago time) on the Borrowing Date of each Floating Rate Advance and three
Business Days before the Borrowing Date for each Eurodollar Ratable Advance.
Notwithstanding the foregoing, a Ratable Borrowing Notice for a Floating Rate
Advance may be given not later than 30 minutes after the time which the Borrower
is required to reject one or more bids offered in connection with an Absolute
Rate Auction pursuant to Section 2.3.6 and a Ratable Borrowing Notice for a
Eurodollar Ratable Advance may be given not later than 30 minutes after the time
the Borrower is required to reject one or more bids offered in connection with a
Eurodollar Auction pursuant to Section 2.3.6. A Ratable Borrowing Notice shall
specify:

                           (a)      the Borrowing Date, which shall be a
Business Day, of such Ratable Advance;

                           (b)      the aggregate amount of such Ratable
Advance, which, when added to the aggregate amount of all outstanding Ratable
Advances and Competitive Bid Advances and after giving effect to the repayment
of any such outstanding Advances out of the proceeds of the requested Ratable
Advance, shall not exceed the Aggregate Commitment;

                           (c)      the Type of Advance selected; and

                           (d)      in the case of each Eurodollar Ratable
Advance, the Eurodollar Interest Period applicable thereto (which may not end
after the Facility Termination Date).

                  2.2.4    Conversion and Continuation of Outstanding Ratable
Advances. Floating Rate Advances shall continue as Floating Rate Advances unless
and until such Floating Rate Advances are converted into Eurodollar Ratable
Advances pursuant to this Section 2.2.4. Each Eurodollar Ratable Advance shall
continue as a Eurodollar Ratable Advance until the end of the then applicable
Eurodollar Interest Period therefor, at which time such Eurodollar Ratable
Advance shall be automatically converted into a Floating Rate Advance unless the
Borrower shall have given the Agent a Conversion/Continuation Notice requesting
that, at the end of such Eurodollar Interest Period, such Eurodollar Ratable
Advance continue as a Eurodollar Ratable Advance for the same or another
Eurodollar Interest Period. Subject to the terms of Section 2.6, the Borrower
may elect from time to time to convert all or any part of a Ratable Advance of
any Type into any other Type or Types of Ratable Advances; provided that any
conversion of any 


                                      -21-
<PAGE>   29
Eurodollar Ratable Advance shall be made on, and only on, the last day of the
Eurodollar Interest Period applicable thereto. The Borrower shall give the Agent
irrevocable notice (a "Conversion/Continuation Notice") of each conversion of a
Ratable Advance or continuation of a Eurodollar Ratable Advance not later than
11:00 a.m. (Chicago time) (x) on the date of the requested conversion, in the
case of a conversion to a Floating Rate Advance, or (y) at least three Business
Days, in the case of a conversion into or continuation of a Eurodollar Ratable
Advance, prior to the date of the requested conversion or continuation,
specifying:

                           (a)      the requested date, which shall be a
Business Day, of such conversion or continuation;

                           (b)      the aggregate amount and Type of Ratable
Advance which is to be converted or continued; and

                           (c)      the amount and Type(s) of Ratable Advance(s)
into which such Ratable Advance is to be converted or continued and, in the case
of a conversion into or continuation of a Eurodollar Ratable Advance, the
duration of the Eurodollar Interest Period applicable thereto.

         2.3      Competitive Bid Advances.

                  2.3.1    Competitive Bid Option. In addition to Ratable
Advances pursuant to Section 2.2, but subject to the terms and conditions of
this Agreement (including, without limitation, the limitation set forth in
Section 2.1.2 as to the maximum aggregate principal amount of all outstanding
Advances hereunder, provided that a Lender may make Competitive Bid Advances in
an amount in excess of its Commitment), prior to the Facility Termination Date
the Borrower may, as set forth in this Section 2.3, request the Lenders to make
offers to make Competitive Bid Advances to the Borrower. Each Lender may, but
shall have no obligation to, make such offers and the Borrower may, but shall
have no obligation to, accept any such offers in the manner set forth in this
Section 2.3. The Borrower's obligation to pay the principal of, and interest on,
the Competitive Bid Advances shall be evidenced by the Competitive Bid Notes.
Although the Competitive Bid Notes shall be dated the date of the initial
Advance, interest in respect thereof shall be payable only for the periods
during which the Loans evidenced thereby are outstanding.

                  2.3.2    Competitive Bid Quote Request. When the Borrower
wishes to request offers to make Competitive Bid Loans under this Section 2.3,
it shall transmit to the Agent by telecopy a Competitive Bid Quote Request
substantially in the form of Exhibit C hereto so as to be received no later than
(a) 11:00 a.m. (Chicago time) at least four Business Days prior to the Borrowing
Date proposed therein, in the case of a Eurodollar Auction or (b) 11:00 a.m.
(Chicago time) at least one Business Day prior to the Borrowing Date proposed
therein, in the case of an Absolute Rate Auction specifying:

                           (a)      the proposed Borrowing Date, which shall be
a Business Day, for the proposed Competitive Bid Advance;


                                      -22-
<PAGE>   30
                           (b)      the aggregate principal amount of such
Competitive Bid Advance;

                           (c)      whether the Competitive Bid Quotes requested
are to set forth a Eurodollar Bid Rate, an Absolute Rate, or both; and

                           (d)      the Interest Period applicable thereto
(which may not end after the Facility Termination Date).

The Borrower may request offers to make Competitive Bid Loans for more than one
Interest Period in a single Competitive Bid Quote Request. No Competitive Bid
Quote Request shall be given within 5 Business Days (or such other number of
days as the Borrower and the Agent may agree) of any other Competitive Bid Quote
Request. A Competitive Bid Quote Request that does not conform substantially to
the format of Exhibit C hereto shall be rejected, and the Agent shall promptly
notify the Borrower of such rejection by telecopy.

                  2.3.3    Invitation for Competitive Bid Quotes. Promptly and
in any event before 3:00 p.m. (Chicago time) on the same Business Day of receipt
of a Competitive Bid Quote Request that is not rejected pursuant to Section
2.3.2, the Agent shall send to each of the Lenders by telecopy an Invitation for
Competitive Bid Quotes substantially in the form of Exhibit D hereto, which
shall constitute an invitation by the Borrower to each Lender to submit
Competitive Bid Quotes offering to make the Competitive Bid Loans to which such
Competitive Bid Quote Request relates in accordance with this Section 2.3.

                  2.3.4    Submission and Contents of Competitive Bid Quotes.

                           (a)      Each Lender may, in its sole discretion,
submit a Competitive Bid Quote containing an offer or offers to make Competitive
Bid Loans in response to any Invitation for Competitive Bid Quotes. Each
Competitive Bid Quote must comply with the requirements of this Section 2.3.4
and must be submitted to the Agent by telecopy at its offices specified in or
pursuant to Article XIII not later than (i) 9:00 a.m. (Chicago time) at least
three Business Days prior to the proposed Borrowing Date, in the case of a
Eurodollar Auction or (ii) 9:00 a.m. (Chicago time) on the proposed Borrowing
Date, in the case of an Absolute Rate Auction (or, in either case upon
reasonable prior notice to the Lenders, such other time and date as the Borrower
and the Agent may agree); provided that Competitive Bid Quotes submitted by
First Chicago may only be submitted if the Agent or First Chicago notifies the
Borrower of the terms of the offer or offers contained therein not later than 30
minutes prior to the latest time at which the relevant Competitive Bid Quotes
must be submitted by the other Lenders. Subject to Articles IV and VIII, any
Competitive Bid Quote so made shall be irrevocable except with the written
consent of the Agent given on the written instructions of the Borrower.

                           (b)      Each Competitive Bid Quote shall be in
substantially the form of Exhibit E hereto and shall in any case specify:

                                    (i)      the proposed Borrowing Date, which
shall be the same as that set forth in the applicable Invitation for Competitive
Bid Quotes;


                                      -23-
<PAGE>   31
                                    (ii)     the principal amount of the
Competitive Bid Loan for which each such offer is being made, which principal
amount (a) may be greater than, less than or equal to the Commitment of the
quoting Lender, (b) must be at least $2,000,000 and an integral multiple of
$250,000, and (c) may not exceed the principal amount of Competitive Bid Loans
for which offers were requested;

                                    (iii)    in the case of a Eurodollar
Auction, the Competitive Bid Margin offered for each such Competitive Bid Loan
for each Interest Period requested;

                                    (iv)     the minimum amount, if any, of the
Competitive Bid Loan which may be accepted by the Borrower;

                                    (v)      in the case of an Absolute Rate
Auction, the Absolute Rate offered for each such Competitive Bid Loan for each
Interest Period requested; and

                                    (vi)     the identity of the quoting Lender.

                           (c)      The Agent shall reject any Competitive Bid
Quote that:

                                    (i)      is not substantially in the form of
Exhibit E hereto or does not specify all of the information required by Section
2.3.4(b);

                                    (ii)     contains qualifying, conditional or
similar language, other than any such language contained in Exhibit E hereto;

                                    (iii)    proposes terms other than or in
addition to those set forth in the applicable Invitation for Competitive Bid
Quotes; or

                                    (iv)     arrives after the time set forth in
Section 2.3.4(a).

If any Competitive Bid Quote shall be rejected pursuant to this Section
2.3.4(c), then the Agent shall promptly notify the relevant Lender of such
rejection.

                           (d)      No Lender shall disclose any Competitive Bid
Quote (or any part thereof) to any other Lender (other than the Agent), and the
Agent shall not disclose the Competitive Bid Quote (or any part thereof) of any
Lender to any other Lender.

                  2.3.5    Notice to Borrower. The Agent shall promptly notify
the Borrower of the terms (a) of any Competitive Bid Quote submitted by a Lender
that is in accordance with Section 2.3.4 and (b) of any Competitive Bid Quote
that amends, modifies or is otherwise inconsistent with a previous Competitive
Bid Quote submitted by such Lender with respect to the same Competitive Bid
Quote Request. Any such subsequent Competitive Bid Quote shall be disregarded by
the Agent unless such subsequent Competitive Bid Quote specifically states that
it is submitted solely to correct a manifest error in such former Competitive
Bid Quote. The Agent's notice to the Borrower shall specify the aggregate
principal amount of Competitive Bid 


                                      -24-
<PAGE>   32
Loans for which offers have been received for each Interest Period specified in
the related Competitive Bid Quote Request and the respective principal amounts
and Eurodollar Bid Rates or Absolute Rates, as the case may be, so offered.

                  2.3.6    Acceptance and Notice by Borrower. Not later than (a)
11:00 a.m. (Chicago time) at least three Business Days prior to the proposed
Borrowing Date, in the case of a Eurodollar Auction or (b) 11:00 a.m. (Chicago
time) on the proposed Borrowing Date, in the case of an Absolute Rate Auction
(or, in either case upon reasonable prior notice to the Lenders, such other time
and date as the Borrower and the Agent may agree), the Borrower shall notify the
Agent of its acceptance or rejection of the offers so notified to it pursuant to
Section 2.3.5; provided, however, that the failure by the Borrower to give such
notice to the Agent shall be deemed to be a rejection of all such offers. In the
case of acceptance, such notice (a "Competitive Bid Borrowing Notice") shall
specify the aggregate principal amount of offers for each Interest Period that
are accepted. The Borrower may accept any Competitive Bid Quote in whole or in
part (subject to the terms of Section 2.3.4(b)(iv)); provided that: 

                           (a)      the aggregate principal amount of each
Competitive Bid Advance may not exceed the applicable amount set forth in the
related Competitive Bid Quote Request,

                           (b)      acceptance of offers may only be made on the
basis of ascending Eurodollar Bid Rates or Absolute Rates, as the case may be,
in respect of each Interest Period for which Competitive Bid Quotes were
requested, and

                           (c)      the Borrower may not accept any offer that
is described in Section 2.3.4(c) or that otherwise fails to comply with the
requirements of this Agreement.

                  2.3.7    Allocation by Agent. If offers are made by two or
more Lenders with the same Eurodollar Bid Rates or Absolute Rates, as the case
may be, for a greater aggregate principal amount than the amount in respect of
which offers are accepted for the related Interest Period, the principal amount
of Competitive Bid Loans in respect of which such offers are accepted shall be
allocated by the Agent among such Lenders as nearly as possible (in such
multiples, not greater than $1,000,000, as the Agent may deem appropriate) in
proportion to the aggregate principal amount of such offers; provided, however,
that no Lender shall be allocated a portion of any Competitive Bid Advance which
is less than the minimum amount which such Lender has indicated that it is
willing to accept. Allocations by the Agent of the amounts of Competitive Bid
Loans shall be conclusive in the absence of manifest error. The Agent shall
promptly, but in any event on the same Business Day, notify each Lender of its
receipt of a Competitive Bid Borrowing Notice and the aggregate principal amount
of such Competitive Bid Advance allocated to each participating Lender.

         2.4      Availability of Funds. Not later than noon (Chicago time) on
each Borrowing Date, each Lender (or in the case of a Competitive Bid Advance,
each Lender making a portion of such Advance) shall make available its Loan or
Loans in funds immediately available in Chicago to the Agent at its address
specified pursuant to Article XIII. The Agent will promptly 


                                      -25-
<PAGE>   33
make such funds, in the form received from the Lenders, available to the
Borrower at the Agent's aforesaid address.

         2.5      Facility Fee; Reductions in Aggregate Commitment.

                           (a)      The Borrower agrees to pay to the Agent for
the ratable account of each Lender a facility fee at a rate per annum equal to
the Applicable Facility Fee Percentage times such Lender's Commitment (whether
used or unused) from the date hereof to and including the Facility Termination
Date, payable in arrears on each Payment Date hereafter and on the Facility
Termination Date; provided, that such facility fee shall not accrue with respect
to the Commitment of any Lender during any period in which such Lender has
failed to make any Advance required hereunder.

                           (b)      The Borrower may permanently reduce the
Aggregate Commitment in whole, or in part ratably among the Lenders, in a
minimum amount of $2,000,000 (and in multiples of $250,000 if in excess
thereof), upon at least three Business Days' written notice to the Agent, which
notice shall specify the amount of any such reduction; provided, however, that
the amount of the Aggregate Commitment may not be reduced below the aggregate
principal amount of the outstanding Advances. All accrued facility fees shall be
payable on the effective date of any termination of the obligations of the
Lenders to make Loans hereunder and no facility fees shall accrue thereafter.

         2.6      Minimum Amount of Each Advance. Each Advance shall be in the
minimum amount of $2,000,000 (and in multiples of $250,000 if in excess
thereof); provided, however, that (a) any Floating Rate Advance may be in the
amount of the unused Aggregate Commitment and (b) in no event shall more than
five (5) Eurodollar Advances be permitted to be outstanding at any time.

         2.7      Optional Principal Payments. The Borrower may from time to
time pay, without penalty or premium, all outstanding Advances (other than
Competitive Bid Advances, which may not be voluntarily prepaid unless a Lender
has given notice in respect of such Competitive Bid Loan that additional
material amounts are payable to such Lender pursuant to Section 2.16(a), 3.1 or
3.2), or, in a minimum aggregate amount of $2,000,000 or any integral multiple
of $250,000 in excess thereof, any portion of the outstanding Advances (other
than Competitive Bid Advances) upon notice to the Agent not later than 11:00
a.m. (Chicago time) on the date of such payment; provided, that any prepayment
of a Eurodollar Advance prior to the last day of the applicable Eurodollar
Interest Period shall require three Business Days' prior notice to the Agent and
shall be subject to the indemnity provisions of Section 3.4.

         2.8      Changes in Interest Rate, etc. Each Floating Rate Advance
shall bear interest at the Floating Rate from and including the date of such
Advance or the date on which such Advance was converted into a Floating Rate
Advance to (but not including) the date on which such Floating Rate Advance is
paid or converted to a Eurodollar Ratable Advance. Changes in the rate of
interest on that portion of any Advance maintained as a Floating Rate Advance
will take effect simultaneously with each change in the Floating Rate. Each
Eurodollar Ratable 


                                      -26-
<PAGE>   34
Advance and Absolute Rate Advance shall bear interest from and including the
first day of the Interest Period applicable thereto to, but not including, the
last day of such Interest Period at the interest rate determined as applicable
to such Eurodollar Ratable Advance or Absolute Rate Advance. No Interest Period
may end after the Facility Termination Date.

         2.9      Rates Applicable After Default. Notwithstanding anything to
the contrary contained in Section 2.2.3 and 2.2.4, no Advance may be made as,
converted into or continued as a Eurodollar Ratable Advance (except with the
consent of the Agent and the Required Lenders) when any Default or Unmatured
Default has occurred and is continuing. During the continuance of a Default the
Required Lenders may, at their option, by notice to the Borrower, declare (which
declaration may be revoked at the option of the Required Lenders notwithstanding
any provision of Section 8.2 requiring unanimous consent of the Lenders to
changes in interest rates) that each Eurodollar Advance, Absolute Rate Advance
and Floating Rate Advance shall bear interest (for the remainder of the
applicable Interest Period in the case of Eurodollar Advances and Absolute Rate
Advances) at the rate otherwise applicable plus two percent (2.0%) per annum;
provided, however, that such increased rate shall automatically and without
action of any kind by the Lenders become and remain applicable in the event of a
Default described in Section 7.6 or 7.7 until revoked by the Required Lenders.

         2.10     Method of Payment. All payments of the Obligations hereunder
shall be made, without setoff, deduction or counterclaim, in immediately
available funds to the Agent at the Agent's address specified pursuant to
Article XIII, or at any other Lending Installation of the Agent specified in
writing by the Agent to the Borrower, by noon (Chicago time) on the date when
due and shall be applied ratably by the Agent among the Lenders. Each payment
delivered to the Agent for the account of any Lender shall be delivered promptly
by the Agent to such Lender in the same type of funds that the Agent received at
its address specified pursuant to Article XIII or at any Lending Installation
specified in a notice received by the Agent from such Lender. The Agent is
hereby authorized to charge the account of the Borrower maintained with First
Chicago for each payment of principal, interest and fees as it becomes due
hereunder.

         2.11     Notes; Telephonic Notices. Each Lender is hereby authorized to
record the principal amount of each of its Loans and each repayment on the
schedule attached to its Note; provided, however, that neither the failure to so
record nor any error in such recordation shall affect the Borrower's obligations
under such Note. The Borrower hereby authorizes the Lenders and the Agent to
extend, convert or continue Advances, effect selections of Types of Advances,
submit Competitive Bid Quotes and to transfer funds based on telephonic notices
made by any person or persons the Agent or any Lender in good faith believes to
be acting on behalf of the Borrower. The Borrower agrees to deliver promptly to
the Agent a written confirmation, if such confirmation is requested by the Agent
or any Lender, of each telephonic notice signed by an Authorized Officer. If the
written confirmation differs in any material respect from the action taken by
the Agent and the Lenders, the records of the Agent and the Lenders shall govern
absent manifest error.


                                      -27-
<PAGE>   35
         2.12     Interest Payment Dates; Interest and Fee Basis. Interest
accrued on each Floating Rate Advance shall be payable on each Payment Date,
commencing with the first such date to occur after the date hereof, on any date
on which a Floating Rate Advance is prepaid, whether due to acceleration or
otherwise, and at maturity. Interest accrued on that portion of the outstanding
principal amount of any Floating Rate Advance converted into a Eurodollar
Ratable Advance on a day other than a Payment Date shall be payable on the date
of conversion. Interest accrued on each Eurodollar Advance or Absolute Rate
Advance shall be payable on the last day of its applicable Interest Period, on
any date on which the Eurodollar Advance or Absolute Rate Advance is prepaid,
whether by acceleration or otherwise, and at maturity. Interest accrued on each
Eurodollar Advance or Absolute Rate Advance having an Interest Period longer
than three months shall also be payable on the last day of each three-month
interval during such Interest Period. Facility fees and interest on Floating
Rate Advances and Absolute Rate Advances shall be calculated for actual days
elapsed on the basis of a 365/366-day year. Interest on Eurodollar Advances
shall be calculated for actual days elapsed on the basis of a 360-day year.
Interest shall be payable for the day an Advance is made but not for the day of
any payment on the amount paid if payment is received prior to noon (Chicago
time) at the place of payment. If any payment of principal of or interest on an
Advance shall become due on a day which is not a Business Day, such payment
shall be made on the next succeeding Business Day and, in the case of a
principal payment, such extension of time shall be included in computing
interest in connection with such payment.

         2.13     Notification of Advances, Interest Rates, Prepayments and
Commitment Reductions. Promptly after receipt thereof, the Agent will notify
each Lender of the contents of each Aggregate Commitment reduction notice,
Ratable Borrowing Notice, Conversion/Continuation Notice, Invitation for
Competitive Quotes and repayment notice received by it hereunder. The Agent will
notify the Borrower and each Lender of the interest rate applicable to each
Eurodollar Advance promptly upon determination of such interest rate and will
give the Borrower and each Lender prompt notice of each change in the Floating
Rate.

         2.14     Lending Installations. Subject to Section 3.5, each Lender may
book its Loans at any Lending Installation selected by such Lender and may
change its Lending Installation from time to time. All terms of this Agreement
shall apply to any such Lending Installation and the Notes shall be deemed held
by each Lender for the benefit of such Lending Installation. Each Lender may, by
written or telecopy notice to the Agent and the Borrower, designate a Lending
Installation through which Loans will be made by it and for whose account Loan
payments are to be made.

         2.15     Non-Receipt of Funds by the Agent. Unless the Borrower or a
Lender, as the case may be, notifies the Agent prior to the date on which it is
scheduled to make payment to the Agent of (a) in the case of a Lender, the
proceeds of a Loan, or (b) in the case of the Borrower, a payment of principal,
interest or fees to the Agent for the account of the Lenders, that it does not
intend to make such payment, the Agent may assume that such payment has been
made. The Agent may, but shall not be obligated to, make the amount of such
payment available to the intended recipient in reliance upon such assumption. If
the Borrower has not in fact made such 


                                      -28-
<PAGE>   36
payment to the Agent, the Lenders shall, on demand by the Agent, repay to the
Agent the amount so made available together with interest thereon in respect of
each day during the period commencing on the date such amount was so made
available by the Agent until the date the Agent recovers such amount at a rate
per annum equal to the Federal Funds Effective Rate for such day. If any Lender
has not in fact made such payment to the Agent, such Lender or the Borrower
shall, on demand by the Agent, repay to the Agent the amount so made available
together with interest thereon in respect of each day during the period
commencing on the date such amount was so made available by the Agent until the
date the Agent recovers such amount at a rate per annum equal to (a) in the case
of payment by a Lender, the Federal Funds Effective Rate for such day, or (b) in
the case of payment by the Borrower, the interest rate applicable to the
relevant Loan.

         2.16     Taxes.

                           (a)      Any payments made by the Borrower under this
Agreement shall be made free and clear of, and without deduction or withholding
for or on account of, any present or future income, stamp or other taxes,
levies, imposts, duties, charges, fees, deductions or withholdings, now or
hereafter imposed, levied, collected, withheld or assessed by any Governmental
Authority, excluding net income taxes and franchise taxes or any other tax based
upon any income imposed on the Agent or any Lender by the jurisdiction in which
the Agent or such Lender is incorporated or has its principal place of business.
If any such non-excluded taxes, levies, imposts, duties, charges, fees,
deductions or withholdings ("Non-Excluded Taxes") are required to be withheld
from any amounts payable to the Agent or any Lender hereunder, the amounts so
payable to the Agent or such Lender shall be increased to the extent necessary
to yield to the Agent or such Lender (after payment of all Non-Excluded Taxes)
interest or any such other amounts payable hereunder at the rates or in the
amounts specified in or pursuant to this Agreement; provided, however, that the
Borrower shall not be required to increase any such amounts payable to any
Lender that is not organized under the laws of the U.S. or a state thereof if
such Lender fails to comply with the requirements of paragraph (b) of this
Section 2.16. Whenever any Non-Excluded Taxes are payable by the Borrower, as
promptly as practicable thereafter the Borrower shall send to the Agent for its
own account or for the account of such Lender, as the case may be, a certified
copy of an original official receipt received by the Borrower showing payment
thereof. If the Borrower fails to pay any Non-Excluded Taxes when due to the
appropriate taxing authority or fails to remit to the Agent the required
receipts or other required documentary evidence, the Borrower shall indemnify
the Agent and the Lenders for any incremental taxes, interest or penalties that
may become payable by any Agent or any Lender as a result of any such failure.
The agreements in this Section 2.16 shall survive the termination of this
Agreement and the payment of all other amounts payable hereunder.

                           (b)      At least five Business Days prior to the
first date on which interest or fees are payable hereunder for the account of
any Lender, each Lender that is not incorporated under the laws of the United
States of America, or a state thereof, agrees that it will deliver to each of
the Borrower and the Agent two duly completed copies of United States Internal
Revenue Service Form 1001 or 4224, certifying in either case that such Lender is
entitled to 


                                      -29-
<PAGE>   37
receive payments under this Agreement and the Notes without deduction or
withholding of any United States federal income taxes. Each Lender which so
delivers a Form 1001 or 4224 further undertakes to deliver to each of the
Borrower and the Agent two additional copies of such form (or a successor form)
on or before the date that such form expires (currently, three successive
calendar years for Form 1001 and one calendar year for Form 4224) or becomes
obsolete or after the occurrence of any event requiring a change in the most
recent forms so delivered by it, and such amendments thereto or extensions or
renewals thereof as may be reasonably requested by the Borrower or the Agent, in
each case certifying that such Lender is entitled to receive payments under this
Agreement and the Notes without deduction or withholding of any United States
federal income taxes, unless an event (including, without limitation, any change
in treaty, law or regulation) has occurred prior to the date on which any such
delivery would otherwise be required which renders all such forms inapplicable
or which would prevent such Lender from duly completing and delivering any such
form with respect to it and such Lender advises the Borrower and the Agent that
it is not capable of receiving payments without any deduction or withholding of
United States federal income tax.

         2.17     Agent's Fees. The Borrower shall pay to the Agent those fees
owing to it in its capacity as Agent, in addition to the facility fees
referenced in Section 2.5(a), in the amounts and at the times separately agreed
to between the Agent and the Borrower.

                                  ARTICLE III

                             CHANGE IN CIRCUMSTANCES

         3.1      Yield Protection. If, after the Closing Date, the adoption of
or any change in any law or any governmental or quasi-governmental rule,
regulation, policy, guideline or directive (whether or not having the force of
law), or any interpretation thereof or the compliance of any Lender therewith,

                           (a)      subjects any Lender or any applicable
Lending Installation to any tax, duty, charge or withholding on or from payments
due from the Borrower (excluding net income taxes and franchise taxes or any
other tax based upon any income of any Lender or applicable Lending Installation
imposed by the jurisdiction in which such Lender or Lending Installation is
incorporated or has its principal place of business), or changes the basis of
taxation of principal, interest or any other payments to any Lender or Lending
Installation in respect of its Loans or other amounts due it hereunder, or

                           (b)      imposes or increases or deems applicable any
reserve, assessment, insurance charge, special deposit or similar requirement
against assets of, deposits with or for the account of, or credit extended by,
any Lender or any applicable Lending Installation (other than reserves and
assessments taken into account in determining the interest rate applicable to
Eurodollar Advances), or


                                      -30-
<PAGE>   38
                           (c)      imposes any other condition the result of
which is to increase the cost to any Lender or any applicable Lending
Installation of making, funding or maintaining Loans or reduces any amount
receivable by any Lender or any applicable Lending Installation in connection
with any Loans, or requires any Lender or any applicable Lending Installation to
make any payment calculated by reference to the amount of Loans held, or
interest received by it, in each case, by an amount reasonably deemed material
by such Lender,

then, within 15 days of demand by such Lender, the Borrower shall pay such
Lender that portion of such increased expense incurred or resulting in an amount
received which such Lender reasonably determines is attributable to making,
funding and maintaining its Loans and its Commitment.

         3.2      Changes in Capital Adequacy Regulations. If a Lender
reasonably determines the amount of capital required or expected to be
maintained by such Lender, any Lending Installation of such Lender or any
corporation controlling such Lender is increased as a result of a Change, then,
within 15 days of demand by such Lender, the Borrower shall pay such Lender the
amount necessary to compensate for any material shortfall in the rate of return
on the portion of such increased capital which such Lender reasonably determines
is attributable to this Agreement, its Loans or its obligation to make Loans
hereunder (after taking into account such Lender's policies as to capital
adequacy). "Change" means (a) any change after the Closing Date in the
Risk-Based Capital Guidelines, or (b) any adoption of or change in any other
law, governmental or quasi-governmental rule, regulation, policy, guideline,
interpretation, or directive (whether or not having the force of law) after the
Closing Date which affects the amount of capital required or expected to be
maintained by any Lender or any Lending Installation or any corporation
controlling any Lender. "Risk-Based Capital Guidelines" means (a) the risk-based
capital guidelines in effect in the United States on the Closing Date and (b)
the corresponding capital regulations promulgated by regulatory authorities
outside the United States implementing the July 1988 report of the Basle
Committee on Banking Regulation and Supervisory Practices entitled
"International Convergence of Capital Measurements and Capital Standards" and
any amendments to such regulations adopted prior to the Closing Date.

         3.3      Availability of Types of Advances. If (a) any Lender
determines that maintenance of its Eurodollar Loans at a suitable Lending
Installation would violate any applicable law, rule, regulation, or directive,
whether or not having the force of law, or (b) the Required Lenders determine
that (i) deposits of a type and maturity appropriate to match fund Eurodollar
Advances are not available, or (ii) the interest rate applicable to a Eurodollar
Advance does not accurately or fairly reflect the cost of making or maintaining
such Eurodollar Advance, then the Agent shall suspend the availability of the
affected Type of Advance until such circumstance no longer exists and require
any such Eurodollar Advances to be repaid or converted into a Floating Rate
Advance at the option of the Borrower, in each case subject to Section 3.4.

         3.4      Funding Indemnification. If any payment of a Eurodollar
Advance or Absolute Rate Advance occurs on a date which is not the last day of
the applicable Interest Period, whether because of acceleration, prepayment or
otherwise, or a Eurodollar Advance or Absolute 


                                      -31-
<PAGE>   39
Rate Advance is not made on the date specified by the Borrower for any reason
other than default by the Lenders, the Borrower will indemnify the Agent and
each Lender for any loss or cost incurred by it resulting therefrom, including,
without limitation, any loss or cost in liquidating or employing deposits
acquired to fund or maintain the Eurodollar Advance or Absolute Rate Advance.

         3.5      Lender Statements; Survival of Indemnity. To the extent
reasonably possible, each Lender shall designate an alternate Lending
Installation with respect to its Eurodollar Advances to minimize any liability
of the Borrower to such Lender under Sections 3.1 and 3.2 or to avoid the
unavailability of a Type of Advance under Section 3.3, so long as such
designation is not disadvantageous to such Lender. Each Lender shall deliver a
written statement of such Lender to the Borrower (with a copy to the Agent) as
to the amount due, if any, under Section 3.1, 3.2 or 3.4. Such written statement
shall set forth in reasonable detail the calculations upon which such Lender
determined such amount and shall be final, conclusive and binding on the
Borrower in the absence of manifest error. Determination of amounts payable
under such Sections in connection with a Eurodollar Advance shall be calculated
as though each Lender funded its Eurodollar Advances through the purchase of a
deposit of the type and maturity corresponding to the deposit used as a
reference in determining the Eurodollar Rate applicable to such Loan, whether in
fact that is the case or not. Unless otherwise provided herein, the amount
specified in the written statement of any Lender shall be payable on demand
after receipt by the Borrower of the written statement. The obligations of the
Borrower under Sections 3.1, 3.2 and 3.4 shall survive payment of the
Obligations and termination of this Agreement.

         3.6      Substitution of Lenders. Upon the receipt by the Borrower from
any Lender (an "Affected Lender") of a claim for compensation under Section
2.16(a), 3.1 or 3.2 or a notice in accordance with Section 3.3 regarding the
unavailability of a Type of Advance, the Borrower may: (a) request the Affected
Lender to use its best efforts to obtain a replacement bank or financial
institution satisfactory to the Borrower to acquire and assume all or a ratable
part of all of such Affected Lender's Loans and Commitment at the face amount
thereof (a "Replacement Lender"); (b) request one or more of the other Lenders
to acquire and assume all or part of such Affected Lender's Loans and Commitment
(which request each such other Lender may decline or agree to in its sole
discretion); or (c) designate a Replacement Lender. Any such designation of a
Replacement Lender under clause (a) or (c) shall be subject to the prior written
consent of the Agent (which consent shall not unreasonably be withheld). Any
transfer of Loans or Commitment pursuant to this Section shall be made in
accordance with Section 12.3 and Section 3.4, if applicable.

         3.7      Survival. The agreements and obligations of the Borrower in
Section 2.16(a) and this Article III shall survive the payment of all other
Obligations, and the Borrower will have no obligation to pay any amount pursuant
to Section 2.16(a), 3.1, or 3.2 if a demand is not made within 180 days of the
date on which the Lender's right to reimbursement arises.


                                      -32-


<PAGE>   40
                                   ARTICLE IV

                              CONDITIONS PRECEDENT

         4.1 Initial Loans. The Lenders shall not be required to make the
initial Advance hereunder unless the Borrower has furnished the following to the
Agent with one copy for each of the Lenders and the other conditions set forth
below have been satisfied.

             (a) Charter Documents; Good Standing Certificates. Copies of the
certificate of incorporation of each of the Borrower and URC, together with all
amendments thereto, both certified by the appropriate governmental officer in
its jurisdiction of incorporation, together with a good standing certificate
issued by the Secretary of State of its state of incorporation or formation and
the Secretary of State of California.

             (b) By-Laws and Resolutions. Copies, certified by the Secretary or
Assistant Secretary of the Borrower and URC, of its by-laws and of its Board of
Directors' resolutions authorizing the execution, delivery and performance of
the Loan Documents to which such Person is a party.

             (c) Secretary's Certificate. An incumbency certificate, executed by
the Secretary or Assistant Secretary of the Borrower and URC, which shall
identify by name and title and bear the signature of the officers of the
Borrower and URC authorized to sign the Loan Documents and, with respect to the
Borrower, to make borrowings hereunder, upon which certificate the Agent and the
Lenders shall be entitled to rely until informed of any change in writing by the
Borrower.

             (d) Officer's Certificate. A certificate, dated the date of this
Agreement, signed by an Authorized Officer of the Borrower, in form and
substance satisfactory to the Agent, to the effect that: (i) on such date (both
before and after giving effect to the consummation of the transactions
contemplated hereby (collectively, the "Closing Transactions")) no Default or
Unmatured Default has occurred and is continuing (with such representation, with
respect to Section 6.22 for the period ending December 31, 1998 and as of such
date, to the best of such Person's knowledge); (ii) no injunction or temporary
restraining order which would prohibit the making of the Loans or the
consummation of any of the Closing Transactions, or other litigation which could
reasonably be expected to have a Material Adverse Effect is pending or, to the
best of such Person's knowledge, threatened; (iii) all orders, consents,
approvals, licenses, authorizations, or validations of, or filings, recordings
or registrations with, or exemptions by, any governmental or public body or
authority, or any subdivision thereof, required to make or consummate the
Closing Transactions have been or, prior to the time required, will have been,
obtained, given, filed or taken and are or will be in full force and effect (or
the Borrower has obtained effective judicial relief with respect to the
application thereof) and all applicable waiting periods have expired; (iv)
neither the Borrower nor any Subsidiary has failed to perform any material
obligation or covenant required in connection with any Closing Transaction to be
performed or complied with by it on or before such date; (v) each of the
representations and warranties set forth in Article V of this Agreement is true
and correct on and


                                       33
<PAGE>   41

as of such date; and (viii) since December 31, 1997 no event or change has
occurred that has caused or evidences a Material Adverse Effect.

             (e) Legal Opinions. Written opinions of Dewey Ballantine LLP and of
Orr & Reno, counsel for the Borrower and URC, addressed to the Agent and the
Lenders in form and substance acceptable to the Agent and its counsel.

             (f) Notes. Notes payable to the order of each of the Lenders duly
executed by the Borrower.

             (g) Loan Documents. Executed originals of the Agreement, together
with all schedules, exhibits, certificates, instruments, opinions, documents and
financial statements required to be delivered pursuant hereto and thereto.

             (h) Regulatory Matters. Receipt of any required regulatory
approvals from any Governmental Authority with respect to the transactions
contemplated by the Loan Documents.

             (i) Departing Lender. The Departing Lender shall have consented to
this Agreement and the reduction to $0 of its Commitment hereunder, such consent
to be in form and substance satisfactory to the Agent.

         4.2 Each Future Advance. The Lenders shall not be required to make any
Advance unless on the applicable Borrowing Date:

             (a) There exists no Default or Unmatured Default and none would
result from such Advance;

             (b) The representations and warranties contained in Article V are
true and correct in all material respects as of such Borrowing Date;

             (c) A Borrowing Notice shall have been properly submitted; and

             (d) All legal matters incident to the making of such Advance shall
be reasonably satisfactory to the Lenders and their counsel.

Each Ratable Borrowing Notice and Competitive Bid Quote Request with respect to
each such Advance shall constitute a representation and warranty by the Borrower
that the conditions contained in Section 4.2 have been satisfied. Any Lender may
require a duly completed compliance certificate in substantially the form of
Exhibit F hereto as a condition to making an Advance.

                                       34
<PAGE>   42

                                    ARTICLE V

                         REPRESENTATIONS AND WARRANTIES

         The Borrower represents and warrants to the Lenders that, both before
and after giving effect to the Closing Transactions:

         5.1 Corporate Existence and Standing. Each of the Borrower and each
Subsidiary is a corporation duly incorporated, validly existing and in good
standing under the laws of its respective jurisdiction of incorporation, has the
power and authority to own its properties and assets, and to carry on its
business as presently conducted, and is duly qualified to conduct business as a
foreign corporation in each jurisdiction in which such qualification is
required, except where the failure to be so qualified could not reasonably be
expected to have a Material Adverse Effect.

         5.2 Authorization and Validity. Each of the Borrower and URC has all
requisite corporate power and authority and legal right to execute and deliver
(or file, as the case may be) each of the Loan Documents to which it is a party
and to perform its obligations thereunder. The execution and delivery (or
filing, as the case may be) by the Borrower and URC of such Loan Documents and
the performance of their obligations thereunder have been duly authorized by
proper corporate proceedings and such Loan Documents constitute the legal, valid
and binding obligations of the Borrower and URC, as applicable, enforceable
against the Borrower and URC in accordance with their terms, except as
enforceability may be limited by bankruptcy, insolvency, reorganization,
moratorium, fraudulent conveyance or similar laws affecting the enforcement of
creditors' rights generally or by general principles of equity.

         5.3 Compliance with Laws and Contracts. The Borrower and its
Subsidiaries have complied in all material respects with all applicable
statutes, rules, regulations, orders and restrictions of any domestic or foreign
government or any instrumentality or agency thereof, having jurisdiction over
the conduct of their respective businesses or the ownership of their respective
properties, except where the failure to so comply could not reasonably be
expected to have a Material Adverse Effect. Neither the execution and delivery
by the Borrower and URC of the Loan Documents, the application of the proceeds
of the Loans, the consummation of the Closing Transactions nor compliance with
the provisions of the Loan Documents will, or at the relevant time did, (a)
violate any law, rule, regulation (including Regulations T, U and X), order,
writ, judgment, injunction, decree or award binding on the Borrower or any
Subsidiary or the Borrower's or any Subsidiary's charter, articles or
certificate of incorporation or by-laws, (b) violate the provisions of or
require the approval or consent of any party to any indenture, instrument or
agreement to which the Borrower or any Subsidiary is a party or is subject, or
by which it, or its property, is bound, or conflict with or constitute a default
thereunder, or result in the creation or imposition of any Lien (other than
Liens permitted by the Loan Documents) in, of or on the property of the Borrower
or any Subsidiary pursuant to the terms of any such indenture, instrument or
agreement, or (c) require any consent of the stockholders of any Person, except
for approvals or consents which will be obtained on or before the initial
Advance and are disclosed


                                       35
<PAGE>   43

on Schedule 5.3, except for any violation of, or failure to obtain an approval
or consent required under, any such law, rule, regulation, order, writ,
judgment, injunction, decree, award, indenture, instrument or agreement that
could not reasonably be expected to have a Material Adverse Effect.

         5.4 Governmental Consents. Except as set forth in Schedule 5.4 hereto,
no order, consent, approval, qualification, license, authorization, or
validation of, or filing, recording or registration with, or exemption by, or
other action in respect of, a Governmental Authority, or any subdivision
thereof, any securities exchange or any other Person is or at the relevant time
was required to authorize, or is or at the relevant time was required in
connection with the execution, delivery, consummation or performance of, or the
legality, validity, binding effect or enforceability of, any of the Loan
Documents the application of the proceeds of the Loans or the consummation of
any transaction contemplated in the Loan Documents.

         5.5 Financial Statements. The Borrower has heretofore furnished to each
of the Lenders (a) the December 31, 1997 audited consolidated financial
statements of the Borrower and its Subsidiaries, (b) the unaudited consolidated
financial statements of the Borrower and its Subsidiaries through June 30, 1998,
(c) the December 31, 1997 audited Annual Statement of each Insurance Subsidiary
and (d) the June 30, 1998 Quarterly Statement of each Insurance Subsidiary
(collectively, the "Financial Statements"). Each of the Financial Statements was
prepared in accordance with generally accepted accounting principles or SAP, as
applicable, and, together with the related notes, fairly presents the
consolidated financial condition and operations of the Borrower and its
Subsidiaries, or such Insurance Subsidiary, as applicable, at such dates and the
consolidated results of their operations for the respective periods then ended
(except, in the case of such unaudited statements, for normal year-end audit
adjustments).

         5.6 Material Adverse Change. No material adverse change in the
business, Property, condition (financial or otherwise), performance, prospects
or operations of the Borrower and its Subsidiaries, taken as a whole, or of URC
and its Subsidiaries, taken as a whole, has occurred since December 31, 1997.

         5.7 Taxes. Except as set forth in Schedule 5.7 hereto, the Borrower and
its Subsidiaries have filed or caused to be filed on a timely basis and in
correct form all United States federal and applicable state tax returns and all
other material tax returns which are required to be filed by it, each of
Alleghany and each other Consolidated Person has filed or caused to be filed all
United States federal and material applicable state tax returns which are
required to be filed by it on a consolidated or combined basis and which include
the Borrower or any Subsidiary, and each of the Borrower, the Subsidiaries,
Alleghany and each other Consolidated Person has paid all taxes due pursuant to
said returns or pursuant to any assessment received by such person, except, in
each case, such taxes, if any, as are being contested in good faith and as to
which adequate reserves have been provided in accordance with Agreement
Accounting Principles or SAP, as applicable, and as to which no Lien exists.
From and after October 7, 1993, each of the Borrower and each Subsidiary has
joined in the filing of a consolidated federal income tax return with Alleghany.
No tax liens have been filed and no 


                                       36
<PAGE>   44

claims are being asserted with respect to any taxes for which any Consolidated
Person may be liable which could reasonably be expected to have a Material
Adverse Effect. The charges, accruals and reserves (a) on the books of the
Borrower and its Subsidiaries in respect of any taxes or other governmental
charges and (b) on the books of Alleghany and such other Consolidated Person in
respect of any taxes or other governmental charges owing with respect to any tax
year beginning after December 31, 1992 are in accordance with Agreement
Accounting Principles or SAP, as applicable.

         5.8 Litigation. There is no litigation, arbitration, proceeding,
inquiry or governmental investigation pending or, to the knowledge of any of
their officers, threatened against or affecting the Borrower or any Subsidiary
or any of their respective properties which could reasonably be expected to have
a Material Adverse Effect or to prevent, enjoin or unduly delay the making of
the Loans under this Agreement or the consummation of any other Closing
Transaction.

         5.9 Capitalization. Schedule 5.9 hereto contains (a) an accurate
description of the Borrower's capitalization as of September 30, 1998 after
giving effect to the Closing Transactions and (b) an accurate list of all of the
existing Subsidiaries as of the date of this Agreement, setting forth their
respective jurisdictions of incorporation and the percentage of their capital
stock owned by the Borrower or other Subsidiaries. All of the issued and
outstanding shares of capital stock of the Borrower and of each Subsidiary have
been duly authorized and validly issued, are fully paid and non-assessable, and
are free and clear of all Liens. Except as set forth on Schedule 5.9, no
authorized but unissued or treasury shares of capital stock of the Borrower or
any Subsidiary are subject to any option, warrant, right to call or commitment
of any kind or character. Except as set forth on Schedule 5.9, neither the
Borrower nor any Subsidiary has any outstanding stock or securities convertible
into or exchangeable for any shares of its capital stock, or any right issued to
any Person (either preemptive or other) to subscribe for or to purchase, or any
options for the purchase of, or any agreements providing for the issuance
(contingent or otherwise) of, or any calls, commitments or claims of any
character relating to any of its capital stock or any stock or securities
convertible into or exchangeable for any of its capital stock other than as
expressly set forth in the certificate or articles of incorporation of the
Borrower or such Subsidiary. Neither the Borrower nor any Subsidiary is subject
to any obligation (contingent or otherwise) to repurchase or otherwise acquire
or retire any shares of its capital stock or any convertible securities, rights
or options of the type described in the preceding sentence except as otherwise
set forth on Schedule 5.9. Except as set forth on Schedule 5.9, as of the date
hereof the Borrower does not own or hold, directly or indirectly, any capital
stock or equity security of, or any equity or partnership interest in any Person
other than such Subsidiaries.

         5.10 ERISA. The Unfunded Liabilities of all Single Employer Plans
maintained by the Borrower or any of its Subsidiaries do not in the aggregate
exceed $1,000,000 and the Unfunded Liabilities of all Single Employer Plans
maintained by the other members of the Controlled Group do not in the aggregate
exceed an amount which could reasonably be expected to have a Material Adverse
Effect. Except as set forth on Schedule 5.10, neither the Borrower nor any other
member of the Controlled Group maintains, or is obligated to contribute to, any


                                       37
<PAGE>   45

Multiemployer Plan. Each Plan complies in all material respects with all
applicable requirements of law and regulations, no Reportable Event has occurred
with respect to any Plan maintained by the Borrower or any of its Subsidiaries,
no Reportable Event has occurred with respect to any Plan maintained by any
other member of the Controlled Group that could reasonably be expected to have a
Material Adverse Effect, neither the Borrower nor any Subsidiary has withdrawn
from any Multiemployer Plan or initiated steps to do so, no other member of the
Controlled Group has withdrawn from any Multiemployer Plan resulting in any
withdrawal liability that could reasonably be expected to have a Material
Adverse Effect or initiated steps to do so, and no steps have been taken to
reorganize or terminate any Plan by any member of the Controlled Group or, to
the Borrower's knowledge, by any other Person.

         5.11 Defaults. No Default or Unmatured Default has occurred and is
continuing.

         5.12 Federal Reserve Regulations. Neither the Borrower nor any
Subsidiary is engaged, directly or indirectly, principally, or as one of its
important activities, in the business of extending, or arranging for the
extension of, credit for the purpose of purchasing or carrying Margin Stock. No
part of the proceeds of any Loan will be used in a manner which would violate,
or result in a violation of, Regulation T, Regulation U or Regulation X. Neither
the making of any Advance hereunder nor the use of the proceeds thereof will
violate or conflict with the provisions of Regulation T, Regulation U or
Regulation X. Following the application of the proceeds of the Loans, less than
25% of the value (as determined by any reasonable method) of the assets of the
Borrower and its Subsidiaries which are subject to any limitation on sale,
pledge, or other restriction hereunder taken as a whole have been, and will
continue to be, represented by Margin Stock.

         5.13 Investment Company; Public Utility Holding Company Act. Neither
the Borrower nor any Subsidiary is, or after giving effect to any Advance will
be, an "investment company" or a company "controlled" by an "investment company"
within the meaning of the Investment Company Act of 1940, as amended. Neither
the Borrower nor any Subsidiary is a "holding company" or a "subsidiary company"
of a "holding company", or an "affiliate" of a "holding company" or of a
"subsidiary company" of a "holding company", within the meaning of the Public
Utility Holding Company Act of 1935, as amended.

         5.14 Certain Fees. No broker's or finder's fee or commission was, is or
will be payable by the Borrower or any Subsidiary with respect to any of the
transactions contemplated by this Agreement. The Borrower hereby agrees to
indemnify the Agent and the Lenders against and agrees that it will hold each of
them harmless from any claim, demand or liability for broker's or finder's fees
or commissions alleged to have been incurred by the Borrower in connection with
any of the transactions contemplated by this Agreement and any expenses
(including, without limitation, attorneys' fees and time charges of attorneys
for the Agent or any Lender, which attorneys may be employees of the Agent or
any Lender) arising in connection with any such claim, demand or liability. No
other similar fee or commissions will be payable by the Borrower or any
Subsidiary for any other services rendered to the Borrower or any Subsidiary
ancillary to any of the transactions contemplated by this Agreement.

                                       38
<PAGE>   46

         5.15 Solvency. As of the date hereof, before and after giving effect to
the consummation of the transactions contemplated by the Loan Documents and the
payment of all fees, costs and expenses payable by the Borrower or its
Subsidiaries with respect to the transactions contemplated by the Loan
Documents, the Borrower (individually and on a consolidated basis) is Solvent.

         5.16 Ownership of Properties. Except as set forth on Schedule 5.16
hereto, the Borrower and its Subsidiaries own, free of all Liens, other than
those permitted by Section 6.16 or by any of the other Loan Documents, all of
the properties and assets reflected in the Financial Statements as being owned
by it, except for assets sold, transferred or otherwise disposed of in the
ordinary course of business since the date thereof. To the knowledge of the
Borrower, there are no actual, threatened or alleged defaults with respect to
any leases of real property under which the Borrower or any Subsidiary is lessee
or lessor which could reasonably be expected to have a Material Adverse Effect.
The Borrower and its Subsidiaries own or possess rights to use all licenses,
patents, patent applications, copyrights, service marks, trademarks and trade
names necessary to continue to conduct their business as heretofore conducted,
and no such license, patent or trademark has been declared invalid or been
limited by order of any court or by agreement or is the subject of any
infringement, interference or similar proceeding or challenge, except for
proceedings and challenges which could not reasonably be expected to have a
Material Adverse Effect.

         5.17 Indebtedness. Attached hereto as Schedule 5.17 is a complete and
correct list of all Indebtedness of the Borrower and its Subsidiaries
outstanding on the date of this Agreement (other than Indebtedness in a
principal amount not exceeding $1,000,000 for a single item of Indebtedness and
$5,000,000 in the aggregate for all such Indebtedness), showing the aggregate
principal amount which was outstanding on such date after giving effect to the
Closing Transactions. The Borrower has delivered or caused to be delivered to
the Lenders a true and complete copy of each instrument evidencing Indebtedness
in a principal amount of $5,000,000 or more and of each document pursuant to
which any of such Indebtedness was issued.

         5.18 Material Agreements. Neither the Borrower nor any Subsidiary is a
party to any agreement or instrument or subject to any charter, bylaw or other
restriction set forth in a similar governing document which could reasonably be
expected to have a Material Adverse Effect or which restricts or imposes
conditions upon the ability of any Subsidiary to (a) pay dividends or make other
distributions on its capital stock, (b) make loans or advances to the Borrower
or (c) repay loans or advances from the Borrower. Neither the Borrower nor any
Subsidiary is in default in the performance, observance or fulfillment of any of
the obligations, covenants or conditions contained in any agreement to which it
is a party, which default could reasonably be expected to have a Material
Adverse Effect.

         5.19 Environmental Laws. There are no claims, investigations,
litigation, administrative proceedings, notices, requests for information (each
a "Proceeding"), whether pending or, to the Borrower's knowledge, threatened, or
judgments or orders asserting violations of applicable federal, state and local
environmental, health and safety statutes, regulations,


                                       39
<PAGE>   47

ordinances, codes, rules, orders, decrees, directives and standards
("Environmental Laws") or relating to any toxic or hazardous waste, substance or
chemical or any pollutant, contaminant, chemical or other substance defined or
regulated pursuant to any Environmental Law, including, without limitation,
asbestos, petroleum, crude oil or any fraction thereof ("Hazardous Materials")
asserted against the Borrower or any of its Subsidiaries which, in any case,
could reasonably be expected to have a Material Adverse Effect. As of the date
hereof, there are no such Proceedings pending, or to the Borrower's knowledge
threatened, except as disclosed on Schedule 5.19. The Borrower and each of its
Subsidiaries have obtained and are in compliance in all material respects with
all permits, certificates, licenses, approvals and other authorizations
("Environmental Permits") required for the operation of their business and have
filed all required notifications or reports relating, in each case, to chemical
substances, air emissions, effluent discharges and the storage, treatment,
transport and disposal of Hazardous Materials. As of the date hereof, the
Borrower and its Subsidiaries do not have liabilities exceeding $100,000 in the
aggregate for all of them with respect to compliance with applicable
Environmental Laws and Environmental Permits or related to the generation,
treatment, storage, disposal, release, investigation or cleanup of Hazardous
Materials, and, to the knowledge of the Borrower, no facts or circumstances
exist which could give rise to such liabilities with respect to compliance with
applicable Environmental Laws and Environmental Permits and the generation,
treatment, storage, disposal, release, investigation or cleanup of Hazardous
Materials.

         5.20 Insurance. The Borrower and its Subsidiaries maintain insurance on
their Property with such companies, in such amounts and covering such risks as
is, in each case, consistent with sound business practice.

         5.21 Insurance Licenses. No License, the loss of which could reasonably
be expected to have a Material Adverse Effect, is the subject of a proceeding
for suspension or revocation. To the Borrower's knowledge, there is no
sustainable basis for such suspension or revocation, and no such suspension or
revocation has been threatened by any Governmental Authority. No Insurance
Subsidiary has received written notice from any Governmental Authority that it
is deemed to be "commercially domiciled" for insurance regulatory purposes in
any jurisdiction other than that indicated on Schedule 5.21. Schedule 5.21 also
indicates the state or states in which such Insurance Subsidiary is licensed to
engage in any line of insurance, in each case as of the date of this Agreement.

         5.22 Reserves. Each reserve and other liability amount in respect of
the insurance business, including, without limitation, reserve and other
liability amounts in respect of insurance policies, established or reflected in
the SAP Financial Statements for the year ended December 31, 1997 of each
Insurance Subsidiary, was determined in accordance with generally accepted
actuarial standards consistently applied, was fairly stated in accordance with
sound actuarial principles and was in compliance with the requirements of the
insurance laws, rules and regulations of its state of domicile as of the date
thereof. Each Insurance Subsidiary owns assets that qualify as admitted assets
under applicable law in an amount at least equal to the sum of all such reserves
and liability amounts and its minimum statutory capital and surplus as required
by the insurance laws, rules and regulations of its state of domicile.

                                       40
<PAGE>   48

         5.23 Disclosure. None of the (a) information, exhibits or reports
furnished by or on behalf of the Borrower to the Agent or to any Lender in
connection with the negotiation of the Loan Documents and the transactions
contemplated hereby or thereby, or (b) representations or warranties of the
Borrower contained in this Agreement, the other Loan Documents or any other
document, certificate or written statement furnished to the Agent or the Lenders
by or on behalf of the Borrower for use in connection with the transactions
contemplated by this Agreement contained, contains or will contain any untrue
statement of a material fact or omitted, omits or will omit to state a material
fact necessary in order to make the statements contained herein or therein not
misleading in light of the circumstances in which the same were made and on the
date as of which the same were made; provided, that this Section 5.23 shall not
apply to any plan, forecast, projection or pro forma financial information
contained in such materials that is based upon good faith estimates and
assumptions believed to be reasonable at the time made. The pro forma financial
information contained in such materials is based upon good faith estimates and
assumptions believed by the Borrower to be reasonable at the time made. There is
no fact known to the Borrower (other than matters of a general economic or
political nature) that has had since December 31, 1997 or could reasonably be
expected to have a Material Adverse Effect and that has not been disclosed
herein or in such other documents, certificates and statements furnished to the
Lenders for use in connection with the transactions contemplated by this
Agreement.

         5.24 Year 2000 Compliance. The Borrower has reviewed its operations and
those of its Subsidiaries with a view to assessing whether its businesses, or
the businesses of any of its Subsidiaries, will be vulnerable to a Year 2000
Problem or will be vulnerable to the effects of a Year 2000 Problem suffered by
any of the Borrower's or any of its Subsidiaries' major commercial
counter-parties. The Borrower represents and warrants that it has a reasonable
basis to believe that no Year 2000 Problem will cause a Material Adverse Effect.

         5.25 Use of Proceeds. Neither the Borrower nor any of its Subsidiaries
is engaged in the business of extending credit to others for the purposes of
buying or carrying any "margin stock."

         5.26 Permits, Licenses and Rights. The Borrower and its Subsidiaries
own or possess all the patents, trademarks, service marks, trade names,
copyrights, licenses, franchises, permits and rights with respect to the
foregoing necessary to own and operate their respective properties and to carry
on their respective businesses as presently conducted and presently planned to
be conducted without, to the best knowledge of the Borrower, conflict with the
rights of others, except where failure to do so could not reasonably be expected
to have a Material Adverse Effect.

                                   ARTICLE VI

                                    COVENANTS

         During the term of this Agreement, unless the Required Lenders shall
otherwise consent in writing:

                                       41
<PAGE>   49

         6.1 Financial Reporting. The Borrower will maintain, for itself and
each Subsidiary, a system of accounting established and administered in
accordance with generally accepted accounting principles, consistently applied,
and furnish to the Lenders:

             (a) As soon as practicable and in any event within 90 days after
the close of each of its Fiscal Years, an unqualified (except for qualifications
relating to changes in accounting principles or practices reflecting changes in
generally accepted accounting principles and required or approved by the
independent certified public accountants of the Borrower or of Venton, as the
case may be) audit report certified by independent certified public accountants,
acceptable to the Lenders, prepared in accordance with Agreement Accounting
Principles on a consolidated and consolidating basis (consolidating statements
need not be certified by such accountants) for itself and its Subsidiaries and
for Venton and its Subsidiaries, including balance sheets as of the end of such
period and related statements of income, retained earnings and cash flows
accompanied by (i) any control letter prepared by said accountants addressed to
the audit committee of the board of directors of the Borrower or Venton, as the
case may be, (ii) a certificate of said accountants that, in the course of the
examination necessary for their certification of the foregoing, they have
obtained no knowledge of any Default or Unmatured Default, or if, in the opinion
of such accountants, any Default or Unmatured Default shall exist, stating the
nature and status thereof, and (iii) a letter from said accountants addressed to
the Lenders acknowledging that the Lenders are relying on such certificate as
part of their credit consideration of the transactions contemplated hereby and
authorizing such reliance.

             (b) As soon as practicable and in any event within 45 days after
the close of the first three Fiscal Quarters of each of its Fiscal Years, for
itself and its Subsidiaries, consolidated and consolidating unaudited balance
sheets as at the close of each such period and consolidated and consolidating
statements of income, retained earnings and cash flows for the period from the
beginning of such Fiscal Year to the end of such quarter, all certified by its
chief financial officer.

             (c) (i) Upon the earlier of (A) fifteen days after the regulatory
filing date or (B) 75 days after the close of each Fiscal Year of each Insurance
Subsidiary, copies of the unaudited Annual Statement of such Insurance
Subsidiary, certified by the chief financial officer of such Insurance
Subsidiary, all such statements to be prepared in accordance with SAP and (ii)
no later than each June 15, copies of such Annual Statements audited and
certified by independent certified public accountants of recognized annual
standing.

             (d) Upon the earlier of (i) ten (10) days after the regulatory
filing date or (ii) 60 days after the close of each of the first three Fiscal
Quarters of each Fiscal Year of each Insurance Subsidiary, copies of the
Quarterly Statement of each of the Insurance Subsidiaries, certified by the
chief financial officer of such Insurance Subsidiary, all such statements to be
prepared in accordance with SAP.

             (e) Promptly and in any event within ten days after (i) learning
thereof, notification of any changes after the date hereof in the rating given
by (A) A.M. Best & Co. or S&P in respect of any Insurance Subsidiary or (B) S&P
or Moody's in respect of the


                                       42
<PAGE>   50

senior Indebtedness of the Borrower or any Subsidiary and (ii) receipt thereof,
copies of any ratings analysis by (A) A.M. Best & Co. or S&P relating to any
Insurance Subsidiary or (B) S&P or Moody's in respect of the senior Indebtedness
of the Borrower or any Subsidiary.

             (f) Copies of any actuarial certificates prepared with respect to
any Insurance Subsidiary by an employee of or an actuary engaged by such
Insurance Subsidiary, promptly after the receipt thereof.

             (g) As soon as available, but in any event not later than the last
Business Day in February of each year, a copy of the plan and forecast
(including a projected consolidated and consolidating balance sheet, income
statement and funds flow statement) of the Borrower and its Subsidiaries for
such Fiscal Year.

             (h) Together with the financial statements required by clauses (a)
and (b) above, a compliance certificate in substantially the form of Exhibit F
hereto signed by its chief financial officer showing the calculations necessary
to determine compliance with this Agreement and stating that no Default or
Unmatured Default exists, or if any Default or Unmatured Default exists, stating
the nature and status thereof.

             (i) Within 270 days after the close of each Fiscal Year, a
statement of the Unfunded Liabilities of each Single Employer Plan, if any,
certified as correct by an actuary enrolled under ERISA.

             (j) As soon as possible and in any event within 10 days after the
Borrower knows that any Termination Event has occurred with respect to any Plan,
a statement, signed by the chief financial officer of the Borrower, describing
said Termination Event and the action which the Borrower proposes to take with
respect thereto and as soon as possible and in any event within ten (10) days
after learning thereof, notification of any lien imposed by the PBGC or the IRS
on the assets of any member of the Controlled Group in respect of any Plan
maintained by any such member (or any other employee pension benefit plan as to
which any such member may be liable) which relates to liabilities in excess of
ten percent of the net worth (determined according to generally accepted
accounting principles and without reduction for any reserve for such
liabilities) of Alleghany and its Subsidiaries.

             (k) As soon as possible and in any event within 10 days after
receipt by the Borrower, a copy of (i) any notice, claim, complaint or order to
the effect that the Borrower or any of its Subsidiaries is or may be liable to
any Person as a result of the release by the Borrower, any of its Subsidiaries,
or any other Person of any Hazardous Materials into the environment or requiring
that action be taken to respond to or clean up a Release of Hazardous Materials
into the environment, and (ii) any notice, complaint or citation alleging any
violation of any Environmental Law or Environmental Permit by the Borrower or
any of its Subsidiaries. Within ten days of the Borrower or any Subsidiary
having knowledge of the proposal, enactment or promulgation of any Environmental
Law which could reasonably be expected to have a Material Adverse Effect, the
Borrower shall provide the Agent with written notice thereof.

                                       43
<PAGE>   51

             (l) Promptly upon the filing thereof, copies of all registration
statements and annual, quarterly, monthly or other regular reports which the
Borrower or any of its Subsidiaries files with the NAIC or any insurance
commission or department or analogous Governmental Authority (including without
limitation, any filing made by the Borrower or any Subsidiary pursuant to any
insurance holding company act or related rules or regulations), but excluding
routine or non-material filings with the NAIC, any insurance commissioner or
department or analogous Governmental Authority.

             (m) Promptly and in any event within ten (10) days after learning
thereof, notification of (i) any tax assessment, demand, notice of proposed
deficiency or notice of deficiency received by Alleghany or any other
Consolidated Person or (ii) the filing of any tax Lien or commencement of any
judicial proceeding by or against any such Consolidated Person, if any such
assessment, demand, notice, Lien or judicial proceeding relates to tax
liabilities in excess of ten percent (10%) of the net worth (determined
according to generally accepted accounting standards and without reduction for
any reserve for such liabilities) of Alleghany and its Subsidiaries taken as a
whole.

             (n) Such other information (including, without limitation, the
annual Best's Advance Report Service report prepared with respect to each
Insurance Subsidiary rated by A.M. Best & Co.) as the Agent or any Lender may
from time to time reasonably request.

         6.2 Use of Proceeds. The Borrower will, and will cause each Subsidiary
to, use the proceeds of the Advances to meet the general corporate needs of the
Borrower and its Subsidiaries. The Borrower will not, nor will it permit any
Subsidiary to, use any of the proceeds of the Advances to purchase or carry any
Margin Stock or to finance the Purchase of any Person which has not been
approved and recommended by the board of directors (or functional equivalent
thereof) of such Person.

         6.3 Notice of Default. The Borrower will, and will cause each
Subsidiary to, give prompt notice in writing to the Lenders of (a) the
occurrence of any Default or Unmatured Default, (b) the occurrence of any other
development, financial or other, relating specifically to the Borrower or any of
its Subsidiaries (and not of a general economic or political nature) which could
reasonably be expected to have a Material Adverse Effect, (c) the receipt of any
notice from any Governmental Authority of the expiration without renewal,
revocation or suspension of, or the institution of any proceedings to revoke or
suspend, any License now or hereafter held by any Insurance Subsidiary which is
required to conduct insurance business in compliance with all applicable laws
and regulations and the expiration, revocation or suspension of which could
reasonably be expected to have a Material Adverse Effect, (d) the receipt of any
notice from any Governmental Authority of the institution of any disciplinary
proceedings against or in respect of any Insurance Subsidiary, or the issuance
of any order, the taking of any action or any request for an extraordinary audit
for cause by any Governmental Authority which, if adversely determined, could
reasonably be expected to have a Material Adverse Effect, (e) any judicial or
administrative order limiting or controlling the insurance business of any
Insurance Subsidiary (and not the insurance industry generally) which has been
issued or adopted and which has had,


                                       44
<PAGE>   52

or could reasonably be expected to have, a Material Adverse Effect, or (f) the
commencement of any litigation which could reasonably be expected to create a
Material Adverse Effect.

         6.4 Conduct of Business. The Borrower will, and will cause each
Subsidiary to, (a) carry on and conduct its business only in substantially the
same manner as it is presently conducted, (b) (i) with respect to the Borrower,
only engage in the business of a holding company owning entities engaged in the
business of insurance or reasonably incidental activities, (ii) with respect to
each Insurance Subsidiary, only engage in the insurance business in which it is
engaged or licensed as of the date hereof, if it is an Insurance Subsidiary as
of such date, or as of the date of its Purchase, if hereafter acquired, or only
engage in the insurance business for which it is formed, if hereafter formed,
and (iii) with respect to each other Subsidiary, only engage in the business in
which it is engaged as of the date hereof, if it is a Subsidiary as of such
date, or as of the date of its Purchase if hereafter acquired, or only engage in
the business for which it is formed, if hereafter formed, (c) do all things
necessary to remain duly incorporated, validly existing and in good standing in
its jurisdiction of incorporation and its jurisdiction of domicile and maintain
all requisite qualification to conduct business in each other jurisdiction in
which such qualification is required, except where the failure to maintain such
qualification could not reasonably be expected to have a Material Adverse
Effect, and (d) do all things necessary to renew, extend and continue in effect
all Licenses which may at any time and from time to time be necessary for any
Insurance Subsidiary to operate its insurance business in compliance with all
applicable laws and regulations; provided, that (i) any Insurance Subsidiary may
withdraw from one or more states (other than its state of domicile) as an
admitted insurer if such withdrawal is determined by the board of directors or
management of such Insurance Subsidiary to be in the best interest of such
Insurance Subsidiary and could not reasonably be expected to have a Material
Adverse Effect and (ii) any Subsidiary that is not actively engaged in business
may be dissolved, if such dissolution is determined by the Borrower's board of
directors to be in the best interest of the Borrower and could not reasonably be
expected to have a Material Adverse Effect. No Insurance Subsidiary shall change
its state of domicile or incorporation without the prior written consent of the
Required Lenders. Each Wholly-Owned Subsidiary in existence as of the date of
this Agreement shall continue to be a Wholly-Owned Subsidiary except as
permitted by Section 6.12. It is understood that a merger of a Subsidiary of URC
into an entity which is a Wholly-Owned Subsidiary of URC, to the extent
otherwise permitted by this Agreement, will not be deemed to violate this
Section 6.4. It is also understood that a merger of a Subsidiary of the Borrower
(which is not a Subsidiary of URC) into an entity which is a Wholly-Owned
Subsidiary of the Borrower, to the extent otherwise permitted by this Agreement,
will not be deemed to violate this Section 6.4.

         6.5 Taxes. The Borrower will, and will cause each Subsidiary to, timely
file United States federal and applicable foreign, state and local tax returns
required to be filed by it that are true and correct in all material respects,
and each of the Borrower, the Subsidiaries, Alleghany and each other
Consolidated Person will pay when due all taxes, assessments and governmental
charges and levies upon it or its income, profits or Property, except, in each
case, those which are being contested in good faith by appropriate proceedings
and with respect to which adequate


                                       45
<PAGE>   53

reserves have been set aside in accordance with generally accepted accounting
principles or SAP, as applicable.

         6.6 Insurance. The Borrower will, and will cause each Subsidiary to,
maintain, insurance on all their Property with such companies, in such amounts
and covering such risks as is, in each case, consistent with sound business
practice, and the Borrower will furnish to the Agent and any Lender upon request
full information as to the insurance carried.

         6.7 Compliance with Laws. The Borrower will, and will cause each
Subsidiary to, comply with all laws, rules, regulations, orders, writs,
judgments, injunctions, decrees or awards to which it may be subject, the
failure to comply with which could reasonably be expected to have a Material
Adverse Effect.

         6.8 Maintenance of Properties; Year 2000 Compliance. (a) The Borrower
will, and will cause each Subsidiary to, do all things necessary to maintain,
preserve, protect and keep its Property in good repair, working order and
condition, except for ordinary wear and tear, and make all necessary and proper
repairs, renewals and replacements so that its business carried on in connection
therewith may be properly conducted at all times; provided, that the Borrower or
any Subsidiary may, subject to Section 6.13, dispose of any Property that such
Person deems unnecessary for the conduct of its business.

             (b) The Borrower will take all actions necessary and commit
adequate resources to assure that its computer-based and other systems (and
those of all Subsidiaries) are able to effectively process data, including dates
before, on and after January 1, 2000, without experiencing any Year 2000 Problem
that could reasonably be expected to cause a Material Adverse Effect. At the
request of the Agent, the Borrower will provide the Agent with assurances and
substantiations (including, but not limited to, the results of internal or
external audit reports prepared in the ordinary course of business) reasonably
acceptable to the Required Lenders as to the capability of the Borrower and its
Subsidiaries to conduct its and their businesses and operations before, on and
after January 1, 2000 without experiencing a Year 2000 Problem causing a
Material Adverse Effect.

         6.9 Inspection. The Borrower will, and will cause each Subsidiary to,
permit the Agent and the Lenders, by their respective representatives and
agents, to inspect any of the Property, corporate books and financial records of
the Borrower and each Subsidiary, to examine and make copies of the books of
accounts and other financial records of the Borrower and each Subsidiary, and to
discuss the affairs, finances and accounts of the Borrower and each Subsidiary
with, and to be advised as to the same by, their respective officers at such
reasonable times and intervals as the Lenders may designate. The Borrower will
keep or cause to be kept, and cause each Subsidiary to keep or cause to be kept,
appropriate records and books of account in which complete entries are to be
made reflecting its and their business and financial transactions, such entries
to be made in accordance with Agreement Accounting Principles or SAP, as
applicable, consistently applied.

                                       46
<PAGE>   54

         6.10 Capital Stock and Dividends. The Borrower will not, nor will it
permit any Subsidiary to, (a) issue any capital stock or equity securities of
any kind if, as a result thereof, a Change in Control would occur, or (b)
declare or pay any dividends or make any distributions on its capital stock
(other than dividends payable in its own capital stock) or redeem, repurchase or
otherwise acquire or retire any of its capital stock or any options or other
rights in respect thereof at any time outstanding if a Default or Unmatured
Default has occurred and is continuing or would occur after giving effect
thereto (determined with respect to the covenants set forth in Section 6.22 on a
pro forma basis as of the last day of the immediately preceding Fiscal Quarter),
except that any Subsidiary may declare and pay dividends or make distributions
to the Borrower or any Wholly-Owned Subsidiary.

         6.11 Indebtedness. The Borrower will not, nor will it permit any
Subsidiary to, create, incur or suffer to exist any Indebtedness, except:

             (a) the Loans;

             (b) Outstanding Indebtedness existing on the Closing Date and
described in Schedule 6.11 hereto;

             (c) Rate Hedging Obligations related to the Loans;

             (d) Contingent Obligations permitted pursuant to Section 6.15;

             (e) Indebtedness under the Venton Credit Agreement consisting of
Letters of Credit with an aggregate face amount not to exceed $225,000,000 at
any one time outstanding; and

             (f) additional Indebtedness of the Borrower in an aggregate
principal amount not to exceed $25,000,000, so long as no Default or Unmatured
Default has occurred and is continuing or would occur after giving effect to the
incurrence of such Indebtedness (determined with respect to the covenants set
forth in Section 6.22 on a pro forma basis as of the last day of the immediately
preceding Fiscal Quarter).

         6.12 Merger. The Borrower will not, nor will it permit any Subsidiary
to, merge or consolidate with or into any other Person, except that (a) a
Wholly-Owned Subsidiary of URC may merge into URC or any Wholly-Owned Subsidiary
of URC and (b) any Subsidiary formed for the purpose of effecting a transaction
permitted under Section 6.14(a)(iv) or (b)(v) may merge with another entity if
required to consummate such transaction.

         6.13 Sale of Assets. The Borrower will not, nor will it permit any
Subsidiary to, lease, sell, transfer or otherwise dispose of its Property to any
other Person except for (a) sales of Investments in the ordinary course of
business by the Borrower or any Insurance Subsidiary, including without
limitation, transactions undertaken for the purpose of restructuring all or a
part of the portfolio of Investments owned by the Borrower or such Insurance
Subsidiary, and (b) leases, sales, transfers or other dispositions of its
Property that, together with all other Property


                                       47
<PAGE>   55

of its Subsidiaries previously leased, sold or disposed of (other than
Investments sold in the ordinary course of business by Insurance Subsidiaries)
as permitted by this Section 6.13 since the date hereof do not constitute a
Substantial Portion of the Property of the Borrower and its Subsidiaries.

         6.14 Investments and Purchases. (a) The Borrower will not, and will not
permit any Subsidiary which is not an Insurance Subsidiary to, make or suffer to
exist any Investments (including, without limitation, loans and advances to, and
other Investments in, Subsidiaries), or commitments therefor, or to create any
Subsidiary or to become or remain a partner in any partnership or joint venture,
or to make any Purchases, except:

                            (i) Cash and Cash Equivalents;

                           (ii) Investments in existence as of September 30,
1996 (including Investments in Subsidiaries as of September 30, 1996) and
described in Schedule 6.14 hereto;

                           (iii) Investments in debt securities rated BBB- or
better by S&P, Baa-3 or better by Moody's or NAIC-2 or better by the NAIC;
provided, that any such Investment which, at any time after which it is made,
ceases to meet such rating requirements shall (A) cease to be permitted hereby
if then permitted by Section 6.14(a)(vi) and (B) if not then permitted by
Section 6.14(a)(vi) remain permitted hereby until the earlier of the time it is
permitted under Section 6.14(a)(vi) and the date which is 30 days after the date
on which such rating requirement is no longer met;

                           (iv) Purchases of businesses or entities engaged in
the insurance business or businesses reasonably incident thereto which do not
constitute hostile takeovers (including the creation of Subsidiaries in
connection therewith) so long as no Default or Unmatured Default has occurred
and is continuing or would occur after giving effect to such Purchase or
creation (determined with respect to the covenants set forth in Section 6.22 on
a pro forma basis as of the last day of the immediately preceding Fiscal
Quarter);

                           (v) Other Investments by the Borrower in any
Subsidiary which was a Subsidiary as of the Closing Date, so long as no Default
or Unmatured Default has occurred and is continuing or would occur after giving
effect to such Investment (determined with respect to the covenants set forth in
Section 6.22 on a pro forma basis as of the last day of the immediately
preceding Fiscal Quarter); and

                           (vi) Other Investments by the Borrower made after the
Closing Date in an aggregate amount not exceeding $40,000,000 (including the
creation of Subsidiaries and Investments therein and Investments in any
partnership or joint venture) so long as at the time of such Investment no
Default or Unmatured Default has occurred and is continuing or would occur after
giving effect to such Investment (determined with respect to the covenants set
forth in Section 6.22 on a pro forma basis as of the last day of the immediately
preceding Fiscal Quarter).

                                       48
<PAGE>   56

             (b) The Borrower will not permit any Insurance Subsidiary to make
or suffer to exist any Investments (including, without limitation, loans and
advances to and other Investments in, Subsidiaries), or commitments therefor, or
to create any Subsidiary or to become or remain a partner in any partnership or
joint venture, or to make any Purchases, except:

                            (i) Cash and Cash Equivalents;

                           (ii) Investments in debt securities rated BBB- or
better by S&P, Baa-3 or better by Moody's or NAIC-2 or better by the NAIC;
provided, that any such Investment which, at any time after which it is made,
ceases to meet such rating requirements shall (A) cease to be permitted hereby
if then permitted by Section 6.14(b)(vi) and (B) if not then permitted by
Section 6.14(b)(vi) remain permitted hereby until the earlier of the time it is
permitted under Section 6.14(b)(vi) and the date which is 30 days after the date
on which such rating requirement is no longer met;

                          (iii) Investments in Subsidiaries as of the Closing
Date and other Investments in existence on the Closing Date;

                           (iv) Other Investments in any Subsidiary which was a
Subsidiary as of the Closing Date so long as no Default or Unmatured Default has
occurred and is continuing or would occur after giving effect to such Investment
(determined with respect to the covenants set forth in Section 6.22 on a pro
forma basis as of the last day of the immediately preceding Fiscal Quarter);

                           (v) Purchases of businesses or entities engaged in
the insurance business which do not constitute hostile takeovers (including the
creation of Subsidiaries in connection therewith) made after the Closing Date
for an aggregate consideration not to exceed $50,000,000, so long as no Default
or Unmatured Default has occurred and is continuing or would occur after giving
effect thereto (determined with respect to the covenants set forth in Section
6.22 on a pro forma basis as of the last day of the immediately preceding Fiscal
Quarter); provided, that the consideration paid in connection with the Purchase
of Venton Holdings Ltd. and its Subsidiaries shall not count toward such
$50,000,000 limitation; and

                           (vi) Other Investments (including the creation of
Subsidiaries and Investments therein and Investments in any partnership or joint
venture but excluding any Investment of the type described in clause (b)(v)
above) of a type acceptable to the insurance commissioner in the respective
domiciliary state of such Insurance Subsidiary; provided, that such Investments
do not exceed, in the aggregate at any one time outstanding, an amount equal to
the Total Admitted Assets (as presented on the "Assets" statement, currently
Page 2, Line 21 of the Annual Statement) of all Insurance Subsidiaries
(determined, where applicable, on a combined basis by reference to the
comparable line in the combined Annual Statement) less 125% of the aggregate
Total Required Liabilities (as presented on the "Liabilities, Surplus and Other
Funds" statement, currently Page 3, Line 22 of the Annual Statement) of all
Insurance Subsidiaries (determined, where applicable, on a combined basis by
reference to the comparable line in the combined Annual Statement); provided,
further, that the fair market value of the


                                       49
<PAGE>   57

Investment in Burlington Northern Santa Fe Corporation held by the Borrower and
its Insurance Subsidiaries shall be subtracted from such amount for so long as
such Investment exists.

         6.15 Contingent Obligations. The Borrower will not, nor will it permit
any Subsidiary to, make or suffer to exist any Contingent Obligation (including,
without limitation, any Contingent Obligation with respect to the obligations of
a Subsidiary), except (a) the Contingent Obligations described on Schedule 5.17,
(b) Contingent Obligations incurred under insurance contracts or policies or
reinsurance contracts or policies issued in the ordinary course of business, (c)
Contingent Obligations in respect of the extension of guaranties in the ordinary
course of business to insureds of the obligations of insurers under insurance
policies or contracts or reinsurance contracts or policies, (d) Contingent
Obligations in respect of the endorsement of instruments for deposit or
collection in the ordinary course of business and (e) Contingent Obligations
consisting of (i) a guaranty by the Borrower and URC of obligations under the
Venton Credit Agreement and (ii) the Guaranty.

         6.16 Liens. The Borrower will not, nor will it permit any Subsidiary
to, create, incur, or suffer to exist any Lien in, of or on the Property of the
Borrower or any of its Subsidiaries, except:

             (a) Liens for taxes, assessments or governmental charges or levies
on its Property if the same shall not at the time be delinquent or thereafter
can be paid without penalty, or are being contested in good faith and by
appropriate proceedings and for which adequate reserves in accordance with
generally accepted principles of accounting or SAP, as applicable, shall have
been set aside on its books;

             (b) Liens imposed by law, such as carriers', warehousemen's and
mechanics' liens and other similar liens arising in the ordinary course of
business which secure the payment of obligations not more than 60 days past due
or which are being contested in good faith by appropriate proceedings and for
which adequate reserves shall have been set aside on its books;

             (c) Liens arising out of pledges or deposits under worker's
compensation laws, unemployment insurance, old age pensions, or other social
security or retirement benefits, or similar legislation;

             (d) Utility easements, building restrictions and such other
encumbrances or charges against real property as are of a nature generally
existing with respect to properties of a similar character and which do not in
any material way affect the marketability of the same or interfere with the use
thereof in the business of the Borrower or the Subsidiaries;

             (e) Deposits made by any Insurance Subsidiary with the insurance
regulatory authority in its jurisdiction of domicile or other statutory liens or
liens or claims imposed or required by applicable insurance law or regulation
against the assets of any Insurance Subsidiary, in each case in favor of all
policyholders of such Insurance Subsidiary and in the ordinary course of such
Insurance Subsidiary's business;

                                       50
<PAGE>   58

             (f) Rights of third parties with respect to amounts deposited with
or for the benefit of any Insurance Subsidiary in trust to secure obligations
owed to any Insurance Subsidiary under contracts of reinsurance entered into in
the ordinary course of such Insurance Subsidiary's business;

             (g) Outstanding Liens existing on the Closing Date and described in
Schedule 6.16 hereto;

             (h) Liens on cash deposited in cash collateral accounts securing
the obligations under the Venton Credit Agreement to the extent required under
the Venton Credit Agreement as the provisions of Section 7.02 of the Venton
Credit Agreement requiring the posting of cash collateral are in effect on the
date hereof; and

             (i) Other Liens securing Indebtedness or obligations with an
aggregate principal amount not in excess of $1,000,000 at any time outstanding.

         6.17 Affiliates. The Borrower will not, and will not permit any
Subsidiary to, enter into any transaction (including, without limitation, the
purchase or sale of any Property or service) with, or make any payment or
transfer to, any Affiliate (other than Accra Holdings Corp. and entities owned
by it) except in the ordinary course of business and pursuant to the reasonable
requirements of the Borrower's or such Subsidiary's business and upon fair and
reasonable terms no less favorable to the Borrower or such Subsidiary than the
Borrower or such Subsidiary would obtain in a comparable arm's-length
transaction.

         6.18 Other Indebtedness. The Borrower will not, and will not permit any
Subsidiary to, directly or indirectly voluntarily prepay, defease or in
substance defease, purchase, redeem, retire or otherwise acquire, any
Indebtedness prior to the date when due (other than the Loans) while a Default
or Unmatured Default has occurred and is continuing.

         6.19 Environmental Matters. The Borrower shall and shall cause each of
its Subsidiaries to (a) at all times comply in all material respects with all
applicable Environmental Laws and (b) promptly take any and all commercially
reasonable remedial actions in response to the presence, storage, use, disposal,
transportation or Release of any Hazardous Materials on, under or about any real
property owned, leased or operated by the Borrower or any of its Subsidiaries.

         6.20 Change in Corporate Structure; Fiscal Year. The Borrower shall
not, nor shall it permit any Subsidiary to, (a) permit any amendment or
modification to be made to its certificate or articles of incorporation or
by-laws which is materially adverse to the interests of the Lenders (provided
that the Borrower shall notify the Agent of any other amendment or modification
thereto as soon as practicable thereafter) or (b) change its Fiscal Year to end
on any date other than December 31 of each year, except that the Venton Entities
may change their fiscal year to the twelve month period ending September 30.

                                       51
<PAGE>   59

         6.21 Inconsistent Agreements. The Borrower shall not, nor shall it
permit any Subsidiary to, enter into any indenture, agreement, instrument or
other arrangement which, (a) directly or indirectly prohibits or restrains, or
has the effect of prohibiting or restraining, or imposes materially adverse
conditions upon, the incurrence of the Obligations, the amending of the Loan
Documents or the ability of any Subsidiary to (i) pay dividends or make other
distributions on its capital stock, (ii) make loans or advances to the Borrower
or (iii) repay loans or advances from the Borrower or (b) contains any provision
which would be violated or breached by the making of Advances or by the
performance by the Borrower of any of its obligations under any Loan Document,
other than the restriction on dividends payable by URC to the Borrower set forth
in Section 6.10 of the Venton Credit Agreement, as in effect on the date hereof.

         6.22 Financial Covenants. The Borrower shall:

              6.22.1 Minimum Statutory Surplus. At all times after the date
hereof, cause URC and its Insurance Subsidiaries, as determined on a combined
basis for URC and all of the Insurance Subsidiaries (without double counting) as
of the last day of each Fiscal Quarter, to maintain a minimum Statutory Surplus
at least equal to the sum of (a) $555,000,000, plus (b) 100% of any capital
contributions made to URC or any of its Insurance Subsidiaries after June 30,
1998 (without double counting), plus (c) 35% of positive Statutory Net Income,
if any, for each Fiscal Quarter ending after January 1, 1999 and on or prior to
the time of determination.

              6.22.2 Leverage Ratio. At all times after the date hereof,
determined as of the end of each Fiscal Quarter, maintain a Leverage Ratio of
not more than .50 to 1.0.

              6.22.3 Adjusted Leverage Ratio. At all times after the date
hereof, determined as of the end of each Fiscal Quarter, maintain an Adjusted
Leverage Ratio of not more than .35 to 1.0.

              6.22.4 URC Risk Based Capital Ratio. At all times after the date
hereof, determined as of the end of each Fiscal Quarter, cause URC and its
Insurance Subsidiaries to maintain a Statutory Risk-Based Capital Ratio of not
less than 3.15 to 1.0.

         6.23 Tax Consolidation. The Borrower will not and will not permit any
of its Subsidiaries to file or consent to the filing of any consolidated,
combined or unitary income tax return with any Person (other than any of the
Borrower's Subsidiaries, Alleghany or any other Consolidated Person), except as
required by law. The Borrower will not, and will not permit any of its
Subsidiaries to, enter into any tax sharing agreement with any Person (other
than Alleghany, the Borrower or any of its Subsidiaries) without the written
consent of the Required Lenders. The Borrower shall cause each Subsidiary
(including any newly acquired or newly created Subsidiary) to enter into a tax
sharing agreement with such Subsidiary's immediate parent corporation, which tax
sharing agreement shall obligate such Subsidiary to pay to such Subsidiary's
immediate parent corporation an amount of tax substantially equal to the amount
of tax such parent corporation is required to pay to Alleghany (or to a
Subsidiary of Alleghany) by reason of the taxable income of such Subsidiary. No
Tax Sharing Agreement or other agreement


                                       52
<PAGE>   60

described above may be amended to provide for any payments to be made to
Alleghany in an amount substantially in excess of the amount of tax which
Alleghany is required to pay by reason of the taxable income of the Borrower and
its Subsidiaries.

         6.24 ERISA Compliance.

         With respect to any Plan, neither the Borrower nor any Subsidiary
shall:

              (a) engage in any "prohibited transaction" (as such term is
defined in Section 406 of ERISA or Section 4975 of the Code) for which a civil
penalty pursuant to Section 502(i) of ERISA or a tax pursuant to Section 4975 of
the Code in excess of $1,000,000 could be imposed;

              (b) permit to be incurred any "accumulated funding deficiency" (as
such term is defined in Section 302 of ERISA) in excess of $1,000,000, whether
or not waived;

              (c) permit the occurrence of any Termination Event which could
result in a liability to the Borrower or any other member of the Controlled
Group in excess of $1,000,000;

              (d) be an "employer" (as such term is defined in Section 3(5) of
ERISA) required to contribute to any Multiemployer Plan or a "substantial
employer" (as such term in defined in Section 4001(a)(2) of ERISA) required to
contribute to any Multiemployer Plan; or

              (e) permit the establishment or amendment of any Plan or fail to
comply with the applicable provisions of ERISA and the Code with respect to any
Plan which could reasonably be expected to result in liability to the Borrower
or any other member of the Controlled Group which, individually or in the
aggregate, could reasonably be expected to have a Material Adverse Effect.

                                   ARTICLE VII
                                    DEFAULTS

         The occurrence of any one or more of the following events shall
constitute a Default:

         7.1. Any representation or warranty made or deemed made by or on behalf
of the Borrower to the Lenders or the Agent under or in connection with this
Agreement, any other Loan Document, any Loan, or any certificate or material
information delivered in connection with this Agreement or any other Loan
Document shall prove to have been false in any material respect on the date as
of which made or deemed made.

                                       53
<PAGE>   61

         7.2. Nonpayment of (a) any principal of any Note when due, or (b) any
interest upon any Note or any commitment fee or other fee or obligations under
any of the Loan Documents within five days after the same becomes due.

         7.3. The breach by the Borrower of any of the terms or provisions of
Section 6.2, Section 6.3(a) or Sections 6.10 through 6.24.

         7.4. The breach by the Borrower (other than a breach which constitutes
a Default under Section 7.1, 7.2 or 7.3) of any of the terms or provisions of
this Agreement which is not remedied within thirty (30) days after written
notice from the Agent or any Lender.

         7.5. The default by the Borrower or any of its Subsidiaries in the
performance of any term, provision or condition contained in any agreement or
agreements under which any Indebtedness aggregating in excess of $5,000,000 was
created or is governed, or the occurrence of any other event or existence of any
other condition, the effect of any of which is to cause, or to permit the holder
or holders of such Indebtedness to cause, such Indebtedness to become due prior
to its stated maturity; or any such Indebtedness of the Borrower or any of its
Subsidiaries shall be declared to be due and payable or required to be prepaid
(other than by a regularly scheduled payment) prior to the stated maturity
thereof.

         7.6. The Borrower or any of its Subsidiaries shall (a) have an order
for relief entered with respect to it under the Federal bankruptcy laws as now
or hereafter in effect, (b) make an assignment for the benefit of creditors, (c)
apply for, seek, consent to, or acquiesce in, the appointment of a receiver,
custodian, trustee, examiner, liquidator or similar official for it or any
Substantial Portion of its Property, (d) institute any proceeding seeking an
order for relief under the Federal bankruptcy laws as now or hereafter in effect
or seeking to adjudicate it a bankrupt or insolvent, or seeking dissolution,
winding up, liquidation, reorganization, arrangement, adjustment or composition
of it or its debts under any law relating to bankruptcy, insolvency or
reorganization or relief of debtors or fail to file an answer or other pleading
denying the material allegations of any such proceeding filed against it, (e)
take any corporate action to authorize or effect any of the foregoing actions
set forth in this Section 7.6, (f) fail to contest in good faith any appointment
or proceeding described in Section 7.7 or (g) become unable to pay, not pay, or
admit in writing its inability to pay, its debts generally as they become due.

         7.7. Without the application, approval or consent of the Borrower or
any of its Subsidiaries, a receiver, trustee, examiner, liquidator or similar
official shall be appointed for the Borrower or any of its Subsidiaries or any
Substantial Portion of its Property, or a proceeding described in Section 7.6(d)
shall be instituted against the Borrower or any of its Subsidiaries and such
appointment continues undischarged or such proceeding continues undismissed or
unstayed for a period of forty-five (45) consecutive days.

                                       54
<PAGE>   62

         7.8. Any court, government or governmental agency shall condemn, seize
or otherwise appropriate, or take custody or control of (each a "Condemnation"),
all or any portion of the Property of the Borrower and its Subsidiaries which,
when taken together with all other Property of the Borrower and its Subsidiaries
so condemned, seized, appropriated, or taken custody or control of, during the
twelve-month period ending with the month in which any such Condemnation occurs,
constitutes a Substantial Portion.

         7.9. The Borrower or any of its Subsidiaries shall fail within thirty
days to pay, bond or otherwise discharge any judgment or order for the payment
of money in excess of $500,000 (or multiple judgments or orders for the payment
of an aggregate amount in excess of $1,000,000), which is not stayed on appeal
or otherwise being appropriately contested in good faith and as to which no
enforcement actions have been commenced.

         7.10. Any Change in Control shall occur.

         7.11. Nonpayment by the Borrower of any Rate Hedging Obligation owed to
any Lender or the breach by the Borrower of any term, provision or condition
contained in any agreement, device or arrangement giving rise to any such Rate
Hedging Obligation.

         7.12. Any material License of any Insurance Subsidiary (a) shall be
revoked by the Governmental Authority which issued such License, or any action
(administrative or judicial) to revoke such License shall have been commenced
against such Insurance Subsidiary and shall not have been dismissed within 60
days after the commencement thereof, (b) shall be suspended by such Governmental
Authority for a period in excess of 60 days or (c) shall not be reissued or
renewed by such Governmental Authority upon the expiration thereof following
application for such reissuance or renewal of such Insurance Subsidiary.

         7.13. Any Insurance Subsidiary shall be the subject of a final
non-appealable order imposing a fine in an amount in excess of $250,000 in any
single instance or other such orders imposing fines in excess of $1,000,000 in
the aggregate after the date of this Agreement by or at the request of any state
insurance regulatory agency as a result of the violation by such Insurance
Subsidiary of such state's applicable insurance laws or the regulations
promulgated in connection therewith.

         7.14. Any Insurance Subsidiary shall become subject to (a) any
conservation or liquidation order, directive or mandate issued by any
Governmental Authority or (b) any other directive or mandate issued by any
Governmental Authority which could reasonably be expected to have a Material
Adverse Effect, which in either case is not stayed within thirty (30) days.

         7.15. The Borrower, any of its Subsidiaries, Alleghany or any other
Consolidated Person shall receive any tax assessment, demand or notice of
deficiency or have any tax liens filed or any judicial proceeding relating to
any tax matter commenced against it which, in any


                                       55
<PAGE>   63

such case, could reasonably be expected to have a Material Adverse Effect or any
tax lien shall be filed against any property of the Borrower or any Subsidiary
relating to the tax liabilities of any Person if the same shall not at the time
be delinquent or thereafter can be paid without penalty, or are being contested
in good faith and by appropriate proceedings and for which adequate reserves in
accordance with generally accepted principles of accounting or SAP, as
applicable, shall have been set aside on its books.

         7.16. (a) The Unfunded Liabilities of all Single Employer Plans
maintained by the Borrower and its Subsidiaries shall exceed in the aggregate
$1,000,000 or a Reportable Event shall occur in connection with any Plan
maintained by the Borrower or any of its Subsidiaries, (b) the Unfunded
Liabilities of all Single Employer Plans maintained by other members of the
Controlled Group shall exceed an amount which could reasonably be expected to
have a Material Adverse Effect or any Reportable Event shall occur in connection
with any Plan maintained by other members of the Controlled Group which could
reasonably be expected to have a Material Adverse Effect or (c) any Lien shall
be imposed by the PBGC or the IRS against any assets of the Borrower or any of
its Subsidiaries with respect to a Plan maintained by any other member of the
Controlled Group (or any other employee pension benefit plan as to which any
such member may be liable).

         7.17. The Guaranty shall terminate or cease, in whole or material part,
to be a legally valid and binding obligation of URC, or URC or any Person acting
for or on behalf of URC contests such validity or binding nature of such
guarantee, or any other Person shall assert any of the foregoing.

         7.18. URC shall fail to maintain a claims paying rating by A.M. Best &
Co. of at least A-.

                                  ARTICLE VIII
                 ACCELERATION, WAIVERS, AMENDMENTS AND REMEDIES

         8.1 Acceleration. If any Default described in Section 7.6 or 7.7 occurs
with respect to the Borrower, the obligations of the Lenders to make Loans
hereunder shall automatically terminate and the Obligations shall immediately
become due and payable without any election or action on the part of the Agent
or any Lender. If any other Default occurs, the Required Lenders (or the Agent
with the consent of the Required Lenders) may terminate or suspend the
obligations of the Lenders to make Loans hereunder, or declare the Obligations
to be due and payable, or both, whereupon the Obligations shall become
immediately due and payable, without presentment, demand, protest or notice of
any kind, all of which the Borrower hereby expressly waives.

         If, within ten Business Days after acceleration of the maturity of the
Obligations or termination of the obligations of the Lenders to make Loans
hereunder as a result of any Default



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<PAGE>   64

(other than any Default as described in Section 7.6 or 7.7 with respect to the
Borrower) and before any judgment or decree for the payment of the Obligations
due shall have been obtained or entered, the Required Lenders (in their sole
discretion) shall so direct, the Agent shall, by notice to the Borrower, rescind
and annul such acceleration and/or termination.

         8.2 Amendments. Subject to the provisions of this Article VIII, the
Required Lenders (or the Agent with the consent in writing of the Required
Lenders) and the Borrower may enter into agreements supplemental hereto for the
purpose of adding or modifying any provisions to the Loan Documents or changing
in any manner the rights of the Lenders or the Borrower hereunder or waiving any
Default hereunder; provided, however, that no such supplemental agreement shall,
without the consent of each Lender:

              (a) Extend the final maturity of any Loan or Note or reduce the
principal amount thereof, or reduce the rate or extend the time of payment of
interest or fees thereon;

              (b) Reduce the percentage specified in the definition of Required
Lenders;

              (c) Increase the amount of the Commitment of any Lender hereunder;

              (d) Extend the Facility Termination Date;

              (e) Amend this Section 8.2;

              (f) Permit any assignment by the Borrower of its Obligations or
its rights hereunder; or

              (g) Terminate the Guaranty.

No amendment of any provision of this Agreement relating to the Agent shall be
effective without the written consent of the Agent. The Agent may waive payment
of the fee required under Section 12.3.2 without obtaining the consent of any
other party to this Agreement.

         8.3 Preservation of Rights. No delay or omission of the Lenders or the
Agent to exercise any right under the Loan Documents shall impair such right or
be construed to be a waiver of any Default or an acquiescence therein, and the
making of a Loan notwithstanding the existence of a Default or the inability of
the Borrower to satisfy the conditions precedent to such Loan shall not
constitute any waiver or acquiescence. Any single or partial exercise of any
such right shall not preclude other or further exercise thereof or the exercise
of any other right, and no waiver, amendment or other variation of the terms,
conditions or provisions of the Loan Documents whatsoever shall be valid unless
in writing signed by the Lenders required pursuant to Section 8.2, and then only
to the extent in such writing specifically set forth. All remedies contained in
the Loan Documents or by law afforded shall be cumulative and all shall be
available to the Agent and the Lenders until the Obligations have been paid in
full.

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                                   ARTICLE IX

                               GENERAL PROVISIONS

         9.1 Survival of Representations. All representations and warranties of
the Borrower contained in this Agreement or of the Borrower or any Subsidiary
contained in any Loan Document shall survive the delivery of the Notes and the
making of the Loans herein contemplated.

         9.2 Governmental Regulation. Anything contained in this Agreement to
the contrary notwithstanding, no Lender shall be obligated to extend credit to
the Borrower in violation of any limitation or prohibition provided by any
applicable statute or regulation.

         9.3 Taxes. Any stamp, documentary or similar taxes, assessments or
charges payable or ruled payable by any governmental authority in respect of the
Loan Documents shall be paid by the Borrower, together with interest and
penalties, if any.

         9.4 Headings. Section headings in the Loan Documents are for
convenience of reference only, and shall not govern the interpretation of any of
the provisions of the Loan Documents.

         9.5 Entire Agreement. The Loan Documents embody the entire agreement
and understanding among the Borrower, the Agent and the Lenders and supersede
all prior agreements and understandings among the Borrower, the Agent and the
Lenders relating to the subject matter thereof other than the fee letter dated
August 5, 1996 in favor of First Chicago.

         9.6 Several Obligations; Benefits of this Agreement. The respective
obligations of the Lenders hereunder are several and not joint and no Lender
shall be the partner or agent of any other (except to the extent to which the
Agent is authorized to act as such). The failure of any Lender to perform any of
its obligations hereunder shall not relieve any other Lender from any of its
obligations hereunder. This Agreement shall not be construed so as to confer any
right or benefit upon any Person other than the parties to this Agreement and
the Arranger and their respective successors and assigns.

         9.7 Expenses; Indemnification. The Borrower shall reimburse the Agent
and the Arranger for any costs, internal charges and out-of-pocket expenses
(including attorneys' fees and time charges of attorneys for the Agent and the
Arranger, which attorneys may be employees of the Agent or the Arranger) paid or
incurred by the Agent or the Arranger in connection with the preparation,
negotiation, execution, delivery, review, amendment, modification, and
administration of the Loan Documents. The Borrower also agrees to reimburse the
Agent, the Arranger and the Lenders for any costs, internal charges and
out-of-pocket expenses (including attorneys' fees and time charges of attorneys
for the Agent, the Arranger and the Lenders, which attorneys may be employees of
the Agent, the Arranger or the Lenders) paid or incurred by the Agent, the
Arranger or any Lender in connection with the collection and enforcement of the
Loan Documents. The Borrower further agrees to indemnify the Agent, the Arranger
and each


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<PAGE>   66

Lender, its directors, officers and employees against all losses, claims,
damages, penalties, judgments, liabilities and expenses (including, without
limitation, all expenses of litigation or preparation therefor whether or not
the Agent, the Arranger or any Lender is a party thereto) which any of them may
pay or incur arising out of or relating to this Agreement or the other Loan
Documents the transactions contemplated hereby or thereby or the direct or
indirect application or proposed application of the proceeds of any Loan
hereunder except to the extent that they arise (a) out of the gross negligence
or willful misconduct of the party seeking indemnification, (b) from any dispute
of or any litigation or other proceeding instituted by any Lender against the
Agent or any other Lender or (c) from any breach by the party seeking
indemnification of its obligations under this Agreement. The obligations of the
Borrower under this Section shall survive the termination of this Agreement.

         9.8 Numbers of Documents. All statements, notices, closing documents,
and requests hereunder shall be furnished to the Agent with sufficient
counterparts so that the Agent may furnish one to each of the Lenders.

         9.9 Accounting. Except as provided to the contrary or otherwise defined
herein, all accounting terms used herein shall be interpreted and all accounting
determinations hereunder shall be made in accordance with Agreement Accounting
Principles.

         9.10 Severability of Provisions. Any provision in any Loan Document
that is held to be inoperative, unenforceable, or invalid in any jurisdiction
shall, as to that jurisdiction, be inoperative, unenforceable, or invalid
without affecting the remaining provisions in that jurisdiction or the
operation, enforceability, or validity of that provision in any other
jurisdiction, and to this end the provisions of all Loan Documents are declared
to be severable.

         9.11 Nonliability of Lenders. The relationship between the Borrower and
the Lenders and the Agent shall be solely that of borrower and lender. Neither
the Agent nor any Lender shall have any fiduciary responsibilities to the
Borrower. Neither the Agent nor any Lender undertakes any responsibility to the
Borrower to review or inform the Borrower of any matter in connection with any
phase of the Borrower's business or operations. The Borrower shall rely entirely
upon its own judgment with respect to its business, and any review, inspection
or supervision of, or information supplied to the Borrower by the Agent or the
Lenders is for the protection of the Agent and the Lenders and neither the
Borrower nor any other Person is entitled to rely thereon. The Borrower agrees
that neither the Agent nor any Lender shall have liability to the Borrower
(whether sounding in tort, contract or otherwise) for losses suffered by the
Borrower in connection with, arising out of, or in any way related to, the
transactions contemplated and the relationship established by the Loan
Documents, or any act, omission or event occurring in connection therewith,
unless it is determined by a judgment of a court that is binding on the Agent,
or such Lender, final and not subject to review on appeal, that such losses were
the result of acts or omissions on the part of the Agent or such Lender, as the
case may be, constituting gross negligence or willful misconduct of the party
from which recovery is sought. Whether or not such damages are related to a
claim that is subject to the waiver effected above and whether or not such
waiver is effective, neither the Agent nor any Lender shall have any


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<PAGE>   67

liability with respect to, and the Borrower hereby waives, releases and agrees
not to sue for, any special, indirect or consequential damages suffered by the
Borrower in connection with, arising out of, or in any way related to the Loan
Documents or the transactions contemplated thereby or the relationship
established by the Loan Documents, or any act, omission or event occurring in
connection therewith.

         9.12 CHOICE OF LAW. THE LOAN DOCUMENTS (OTHER THAN THOSE CONTAINING A
CONTRARY EXPRESS CHOICE OF LAW PROVISION) SHALL BE CONSTRUED IN ACCORDANCE WITH
THE INTERNAL LAWS, WITHOUT REGARD TO CONFLICT OF LAWS PROVISIONS, OF THE STATE
OF ILLINOIS, BUT GIVING EFFECT TO FEDERAL LAWS APPLICABLE TO NATIONAL BANKS.

         9.13 CONSENT TO JURISDICTION. THE BORROWER HEREBY IRREVOCABLY SUBMITS
TO THE NON-EXCLUSIVE JURISDICTION OF ANY UNITED STATES FEDERAL OR ILLINOIS STATE
COURT SITTING IN CHICAGO IN ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING
TO ANY LOAN DOCUMENTS AND THE BORROWER HEREBY IRREVOCABLY AGREES THAT ALL CLAIMS
IN RESPECT OF SUCH ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN ANY SUCH
COURT AND IRREVOCABLY WAIVES ANY OBJECTION IT MAY NOW OR HEREAFTER HAVE AS TO
THE VENUE OF ANY SUCH SUIT, ACTION OR PROCEEDING BROUGHT IN SUCH A COURT OR THAT
SUCH COURT IS AN INCONVENIENT FORUM. NOTHING HEREIN SHALL LIMIT THE RIGHT OF THE
AGENT OR ANY LENDER TO BRING PROCEEDINGS AGAINST THE BORROWER IN THE COURTS OF
ANY OTHER JURISDICTION. ANY JUDICIAL PROCEEDING BY THE BORROWER AGAINST THE
AGENT OR ANY LENDER OR ANY AFFILIATE OF THE AGENT OR ANY LENDER INVOLVING,
DIRECTLY OR INDIRECTLY, ANY MATTER IN ANY WAY ARISING OUT OF, RELATED TO, OR
CONNECTED WITH ANY LOAN DOCUMENT SHALL BE BROUGHT ONLY IN A COURT IN CHICAGO,
ILLINOIS; PROVIDED, THAT SUCH PROCEEDINGS MAY BE BROUGHT IN OTHER COURTS IF
JURISDICTION MAY NOT BE OBTAINED IN A COURT IN CHICAGO, ILLINOIS.

         9.14 WAIVER OF JURY TRIAL. THE BORROWER, THE AGENT AND EACH LENDER
HEREBY WAIVE TRIAL BY JURY IN ANY JUDICIAL PROCEEDING INVOLVING, DIRECTLY OR
INDIRECTLY, ANY MATTER (WHETHER SOUNDING IN TORT, CONTRACT OR OTHERWISE) IN ANY
WAY ARISING OUT OF, RELATED TO, OR CONNECTED WITH ANY LOAN DOCUMENT OR THE
RELATIONSHIP ESTABLISHED THEREUNDER.

         9.15 Disclosure. The Borrower and each Lender hereby (a) acknowledge
and agree that First Chicago and/or its Affiliates from time to time may hold
other investments in, make other loans to or have other relationships with the
Borrower, including, without limitation, in connection with any interest rate
hedging instruments or agreements or swap transactions, and (b) waive any
liability arising out of or resulting from any conflict of interest arising from
such investments, loans or relationships.

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<PAGE>   68

         9.16 Counterparts. This Agreement may be executed in any number of
counterparts, all of which taken together shall constitute one agreement, and
any of the parties hereto may execute this Agreement by signing any such
counterpart. This Agreement shall be effective when it has been executed by the
Borrower, the Agent and the Lenders and each party has notified the Agent that
it has taken such action.

         9.17 Confidentiality. Each of the Agent and each Lender agrees to take
and to cause its Affiliates to take normal and reasonable precautions and
exercise due care to maintain the confidentiality of all information identified
as "confidential" or "secret" by the Borrower and provided to it by the Borrower
or any Subsidiary, or by the Agent on the Borrower's or such Subsidiary's
behalf, under this Agreement or any other Loan Document, and neither it nor any
of its Affiliates shall use any such information other than in connection with
or in enforcement of this Agreement and the other Loan Documents or in
connection with other business now or hereafter existing or contemplated with
the Borrower or any Subsidiary, except to the extent such information (i) was or
becomes generally available to the public other than as a result of disclosure
by the Lender, or (ii) was or becomes available on a non-confidential basis from
a source other than the Borrower, provided that such source is not bound by a
confidentiality agreement with the Borrower known to the Agent or such Lender;
provided, however, that the Agent or any Lender may disclose such information
(a) at the request or pursuant to any requirement of any Governmental Authority
to which the Agent or such Lender is subject or in connection with an
examination of the Agent or such Lender by any such authority; (b) pursuant to
subpoena or other court process, provided that if not prohibited by law, the
Agent or such Lender will use its best efforts to provide notice to the Borrower
of the receipt of such subpoena and give the Borrower reasonable opportunity to
seek a protective order with respect to such information prior to delivering
confidential material in response thereto; (c) when required to do so in
accordance with the provisions of any applicable requirement of law; (d) to the
extent reasonably required in connection with any litigation or proceeding with
respect to the transactions contemplated hereby to which the Agent or any Lender
or their respective Affiliates may be party; (e) to the extent reasonably
required in connection with the exercise of any remedy hereunder or under any
other Loan Document; (f) to the Agent's or such Lender's independent auditors
and other professional advisors with a need to know and who agree to keep such
information confidential to the extent required of the Agent or such Lender
hereunder; (g) to any Participant or Purchaser, actual or potential, provided
that such Person agrees to keep such information confidential to the same extent
required of the Agent or the Lenders hereunder; (h) as to the Agent or any
Lender or its Affiliate, as expressly permitted under the terms of any other
document or agreement regarding confidentiality to which the Borrower or any
Subsidiary is party or is deemed party with the Agent or such Lender or such
Affiliate; and (i) to its Affiliates, provided that any such Affiliate agrees in
writing to keep such information confidential to the same extent required of the
Agent or such Lender hereunder.

         9.18 Restatement Date. The Borrower, each Lender and the Agent agree
that on the Restatement Date the following transactions shall be deemed to occur
automatically, without further action by any party hereto (except as set forth
below):

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<PAGE>   69

              (a) The Existing Credit Agreement shall be deemed to be amended
and restated in its entirety in the form of this Agreement.

              (b) The Agent shall, promptly after receipt of the Notes
reflecting the amendments to the Existing Credit Agreement effected hereunder,
cancel and return to the Borrower (upon receipt from the Lenders) the promissory
notes being replaced by such Notes.

         The Borrower, each Lender and the Agent agree that (i) the restatement
transactions provided in the foregoing sentence shall not be effective until the
execution of this Agreement by all of the parties hereto and the satisfaction of
the conditions precedent set forth in Section 4.1 hereof; (ii) all terms and
conditions of the Existing Credit Agreement which are amended and restated by
this Agreement shall remain effective until such amendment and restatement
becomes effective hereunder and thereafter shall continue to be effective only
as amended and restated by this Agreement and (iii) the representations,
warranties and covenants set forth herein shall become effective on the
Restatement Date.

         9.19 Departing Lender. Upon the effectiveness of this Agreement and the
payment to the Departing Lender of the Obligations due it, (a) the Departing
Lender shall have no further Commitment hereunder and (b) the Departing Lender
shall cease to have any rights or duties as Lender hereunder; provided, that the
Departing Lender shall remain entitled to indemnities under the Existing Credit
Agreement which by their terms survive the termination of the Existing Credit
Agreement.

                                    ARTICLE X

                                    THE AGENT

         10.1 Appointment. First Chicago is hereby appointed Agent hereunder and
under each other Loan Document, and each of the Lenders authorizes the Agent to
act as the agent of such Lender. The Agent agrees to act as such upon the
express conditions contained in this Article X. The Agent shall not have a
fiduciary relationship in respect of the Borrower or any Lender by reason of
this Agreement.

         10.2 Powers. The Agent shall have and may exercise such powers under
the Loan Documents as are specifically delegated to the Agent by the terms of
each thereof, together with such powers as are reasonably incidental thereto.
The Agent shall have no implied duties to the Lenders, or any obligation to the
Lenders to take any action thereunder, except any action specifically provided
by the Loan Documents to be taken by the Agent.

         10.3 General Immunity. Neither the Agent nor any of its directors,
officers, agents or employees shall be liable to the Borrower or any Lender for
any action taken or omitted to be taken by it or them hereunder or under any
other Loan Document or in connection herewith or therewith except for its or
their own gross negligence or willful misconduct.

                                       62
<PAGE>   70

         10.4 No Responsibility for Loans, Recitals, etc. Neither the Agent nor
any of its directors, officers, agents or employees shall be responsible for or
have any duty to ascertain, inquire into, or verify (a) any statement, warranty
or representation made in connection with any Loan Document or any borrowing
hereunder, (b) the performance or observance of any of the covenants or
agreements of any obligor under any Loan Document, including, without
limitation, any agreement by an obligor to furnish information directly to each
Lender; (c) the satisfaction of any condition specified in Article IV, except
receipt of items required to be delivered to the Agent and not waived at
closing, or (d) the validity, effectiveness, sufficiency, enforceability or
genuineness of any Loan Document or any other instrument or writing furnished in
connection therewith. The Agent shall have no duty to disclose to the Lenders
information that is not required to be furnished by the Borrower to the Agent at
such time, but is voluntarily furnished by the Borrower to the Agent (either in
its capacity as Agent or in its individual capacity).

         10.5 Action on Instructions of Lenders. The Agent shall in all cases be
fully protected in acting, or in refraining from acting, hereunder and under any
other Loan Document in accordance with written instructions signed by the
Required Lenders (or, to the extent required by Section 8.2, all Lenders), and
such instructions and any action taken or failure to act pursuant thereto shall
be binding on all of the Lenders and on all holders of Notes. The Agent shall be
fully justified in failing or refusing to take any action hereunder and under
any other Loan Document unless it shall first be indemnified to its satisfaction
by the Lenders pro rata against any and all liability, cost and expense that it
may incur by reason of taking or continuing to take any such action.

         10.6 Employment of Agents and Counsel. The Agent may execute any of its
duties as Agent hereunder and under any other Loan Document by or through
employees, agents and attorneys-in-fact and shall not be answerable to the
Lenders, except as to money or securities received by it or its authorized
agents, for the default or misconduct of any such agents or attorneys-in-fact
selected by it with reasonable care. The Agent shall be entitled to advice of
counsel concerning all matters pertaining to the agency hereby created and its
duties hereunder and under any other Loan Document.

         10.7 Reliance on Documents; Counsel. The Agent shall be entitled to
rely upon any Note, notice, consent, certificate, affidavit, letter, telegram,
statement, paper or document believed by it to be genuine and correct and to
have been signed or sent by the proper person or persons, and, in respect to
legal matters, upon the opinion of counsel selected by the Agent, which counsel
may be employees of the Agent.

         10.8 Agent's Reimbursement and Indemnification. The Lenders agree to
reimburse and indemnify the Agent ratably in proportion to their respective
Commitments (or, if the Commitments have been terminated, in proportion to their
Commitments immediately prior to such termination) (a) for any amounts not
reimbursed by the Borrower for which the Agent is entitled to reimbursement by
the Borrower under the Loan Documents, (b) for any other expenses incurred by
the Agent on behalf of the Lenders, in connection with the preparation,
execution, delivery, administration and enforcement of the Loan Documents, and
(c) for any


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liabilities, obligations, losses, damages, penalties, actions, judgments, suits,
costs, expenses or disbursements of any kind and nature whatsoever which may be
imposed on, incurred by or asserted against the Agent in any way relating to or
arising out of the Loan Documents or any other document delivered in connection
therewith or the transactions contemplated thereby, or the enforcement of any of
the terms thereof or of any such other documents; provided, that no Lender shall
be liable for any of the foregoing to the extent they arise from the gross
negligence or willful misconduct of the Agent. The obligations of the Lenders
under this Section 10.8 shall survive payment of the Obligations and termination
of this Agreement.

         10.9 Notice of Default. The Agent shall not be deemed to have knowledge
or notice of the occurrence of any Default or Unmatured Default hereunder unless
the Agent has received written notice from a Lender or the Borrower referring to
this Agreement describing such Default or Unmatured Default and stating that
such notice is a "notice of default". In the event that the Agent receives such
a notice, the Agent shall give prompt notice thereof to the Lenders.

         10.10 Rights as a Lender. In the event the Agent is a Lender, the Agent
shall have the same rights and powers hereunder and under any other Loan
Document as any Lender and may exercise the same as though it were not the
Agent, and the term "Lender" or "Lenders" shall, at any time when the Agent is a
Lender, unless the context otherwise indicates, include the Agent in its
individual capacity. The Agent may accept deposits from, lend money to, and
generally engage in any kind of trust, debt, equity or other transaction, in
addition to those contemplated by this Agreement or any other Loan Document,
with the Borrower or any of its Subsidiaries in which the Borrower or such
Subsidiary is not restricted hereby from engaging with any other Person. The
Agent, in its individual capacity, is not obligated to remain a Lender.

         10.11 Lender Credit Decision. Each Lender acknowledges that it has,
independently and without reliance upon the Agent or any other Lender and based
on the financial statements prepared by the Borrower and such other documents
and information as it has deemed appropriate, made its own credit analysis and
decision to enter into this Agreement and the other Loan Documents. Each Lender
also acknowledges that it will, independently and without reliance upon the
Agent or any other Lender and based on such documents and information as it
shall deem appropriate at the time, continue to make its own credit decisions in
taking or not taking action under this Agreement and the other Loan Documents.

         10.12 Successor Agent. The Agent may resign at any time by giving
written notice thereof to the Lenders and the Borrower, such resignation to be
effective upon the appointment of a successor Agent and, if no Default or
Unmatured Default has occurred and is continuing, the Borrower's prior written
consent, or, if no successor Agent has been appointed, forty-five days after the
retiring Agent gives notice of its intention to resign. Upon any such
resignation, the Required Lenders shall have the right to appoint, on behalf of
the Lenders, a successor Agent. If no successor Agent shall have been so
appointed by the Required Lenders and shall have accepted such appointment
within thirty days after the resigning Agent's giving notice of its intention to
resign, then the resigning Agent may appoint, on behalf of the Borrower and the
Lenders, a successor Agent. If the Agent has resigned and no successor Agent has
been


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appointed, the Lenders may perform all the duties of the Agent hereunder and the
Borrower shall make all payments in respect of the Obligations to the applicable
Lender and for all other purposes shall deal directly with the Lenders. No
successor Agent shall be deemed to be appointed hereunder until such successor
Agent has accepted the appointment and the Borrower has given its consent if
required hereunder. Any such successor Agent shall be a commercial bank having
capital and retained earnings of at least $50,000,000. Upon the acceptance of
any appointment as Agent hereunder by a successor Agent and such consent by the
Borrower, such successor Agent shall thereupon succeed to and become vested with
all the rights, powers, privileges and duties of the resigning Agent. Upon the
effectiveness of the resignation of the Agent, the resigning Agent shall be
discharged from its duties and obligations hereunder and under the Loan
Documents. After the effectiveness of the resignation of an Agent, the
provisions of this Article X shall continue in effect for its benefit in respect
of any actions taken or omitted to be taken by it while it was acting as the
Agent hereunder and under the other Loan Documents.

                                   ARTICLE XI

                            SETOFF; RATABLE PAYMENTS

         11.1 Setoff. In addition to, and without limitation of, any rights of
the Lenders under applicable law, if the Borrower becomes insolvent, however
evidenced, or any Default or Unmatured Default occurs, any and all deposits
(including all account balances, whether provisional or final and whether or not
collected or available) and any other Indebtedness at any time held or owing by
any Lender to or for the credit or account of the Borrower or any Subsidiary may
be offset and applied toward the payment of the Obligations owing to such
Lender, whether or not the Obligations, or any part hereof, shall then be due.

         11.2 Ratable Payments. If any Lender, whether by setoff or otherwise,
has payment made to it upon its Loans (other than payments received pursuant to
Section 2.16(a), 3.1, 3.2 or 3.4) in a greater proportion than its pro-rata
share of such Loans, such Lender agrees, promptly upon demand, to purchase a
portion of the Loans held by the other Lenders so that after such purchase each
Lender will hold its ratable proportion of Loans. If any Lender, whether in
connection with setoff or amounts which might be subject to setoff or otherwise,
receives collateral or other protection for its Obligations or such amounts
which may be subject to setoff, such Lender agrees, promptly upon demand, to
take such action necessary such that all Lenders share in the benefits of such
collateral ratably in proportion to their Loans. In case any such payment is
disturbed by legal process, or otherwise, appropriate further adjustments shall
be made. If an amount to be offset is to be applied to Indebtedness of the
Borrower to a Lender, other than Indebtedness evidenced by any of the Notes held
by such Lender, such amount shall be applied ratably to such other Indebtedness
and to the Indebtedness evidenced by such Notes.

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<PAGE>   73

                                   ARTICLE XII

                BENEFIT OF AGREEMENT; ASSIGNMENTS; PARTICIPATIONS

         12.1 Successors and Assigns. The terms and provisions of the Loan
Documents shall be binding upon and inure to the benefit of the Borrower and the
Lenders and their respective successors and assigns, except that (a) the
Borrower shall not have the right to assign its rights or obligations under the
Loan Documents, and (b) any assignment by any Lender must be made in compliance
with Section 12.3. Notwithstanding clause (b) of this Section, any Lender may at
any time, without the consent of the Borrower or the Agent, assign all or any
portion of its rights under this Agreement and its Notes to a Federal Reserve
Bank; provided, however, that no such assignment to a Federal Reserve Bank shall
release the transferor Lender from its obligations hereunder. The Agent may
treat the payee of any Note as the owner thereof for all purposes hereof unless
and until such payee complies with Section 12.3 in the case of an assignment
thereof or, in the case of any other transfer, a written notice of the transfer
is filed with the Agent. Any assignee or transferee of a Note agrees by
acceptance thereof to be bound by all the terms and provisions of the Loan
Documents. Any request, authority or consent of any Person, who at the time of
making such request or giving such authority or consent is the holder of any
Note, shall be conclusive and binding on any subsequent holder, transferee or
assignee of such Note or of any Note or Notes issued in exchange therefor.

         12.2 Participations.

              12.2.1 Permitted Participants; Effect. Any Lender may, in the
ordinary course of its business and in accordance with applicable law, at any
time sell to one or more banks or other entities ("Participants") participating
interests in any Loan owing to such Lender, any Note held by such Lender, any
Commitment of such Lender or any other interest of such Lender under the Loan
Documents. In the event of any such sale by a Lender of participating interests
to a Participant, such Lender's obligations under the Loan Documents shall
remain unchanged, such Lender shall remain solely responsible to the other
parties hereto for the performance of such obligations, such Lender shall remain
the holder of any such Note for all purposes under the Loan Documents, all
amounts payable by the Borrower under this Agreement shall be determined as if
such Lender had not sold such participating interests, and the Borrower and the
Agent shall continue to deal solely and directly with such Lender in connection
with such Lender's rights and obligations under the Loan Documents.

              12.2.2 Voting Rights. Each Lender shall retain the sole right to
approve, without the consent of any Participant, any amendment, modification or
waiver of any provision of the Loan Documents other than any amendment,
modification or waiver which effects any of the modifications referenced in
clauses (a) through (f) of Section 8.2.

              12.2.3 Benefit of Setoff. The Borrower agrees that each
Participant shall be deemed to have the right of setoff provided in Section 11.1
in respect of its participating interest in amounts owing under the Loan
Documents to the same extent as if the amount of its participating interest were
owing directly to it as a Lender under the Loan Documents; provided,


                                       66
<PAGE>   74

that each Lender shall retain the right of setoff provided in Section 11.1 with
respect to the amount of participating interests sold to each Participant. The
Lenders agree to share with each Participant, and each Participant, by
exercising the right of setoff provided in Section 11.1, agrees to share with
each Lender, any amount received pursuant to the exercise of its right of
setoff, such amounts to be shared in accordance with Section 11.2 as if each
Participant were a Lender.

         12.3 Assignments.

              12.3.1 Permitted Assignments. Any Lender may, in the ordinary
course of its business and in accordance with applicable law, at any time assign
to one or more banks or other entities ("Purchasers") all or any part of its
rights and obligations under the Loan Documents; provided, however, that in the
case of an assignment to an entity which is not a Lender or an Affiliate of a
Lender, such assignment shall be in a minimum amount of $5,000,000. Such
assignment shall be substantially in the form of Exhibit G hereto or in such
other form as may be agreed to by the parties thereto. The consent of the Agent
and, so long as no Default is continuing, the Borrower shall be required prior
to an assignment becoming effective with respect to a Purchaser which is not a
Lender or an Affiliate thereof. Such consent shall not be unreasonably withheld.

              12.3.2 Effect; Effective Date. Upon (a) delivery to the Agent by
the transferor Lender of a notice of assignment, substantially in the form
attached as Exhibit I to Exhibit G hereto (a "Notice of Assignment"), together
with any consents required by Section 12.3.1, and (b) payment by the transferor
Lender of a $3,000 fee to the Agent for processing such assignment, such
assignment shall become effective on the effective date specified in such Notice
of Assignment. On and after the effective date of such assignment, (a) such
Purchaser shall for all purposes be a Lender party to this Agreement and any
other Loan Document executed by the Lenders and shall have all the rights and
obligations of a Lender under the Loan Documents, to the same extent as if it
were an original party hereto, and (b) the transferor Lender shall be released
with respect to the percentage of the Aggregate Commitment and Loans assigned to
such Purchaser without any further consent or action by the Borrower, the
Lenders or the Agent. Upon the consummation of any assignment to a Purchaser
pursuant to this Section 12.3.2, the transferor Lender, the Agent and the
Borrower shall make appropriate arrangements so that replacement Notes are
issued to such transferor Lender and new Notes or, as appropriate, replacement
Notes, are issued to such Purchaser, in each case in principal amounts
reflecting their respective Commitments, as adjusted pursuant to such
assignment.

         12.4 Dissemination of Information. The Borrower authorizes each Lender
to disclose to any Participant or Purchaser or any other Person acquiring an
interest in the Loan Documents by operation of law (each a "Transferee") and any
prospective Transferee any and all information in such Lender's possession
concerning the creditworthiness of the Borrower and its Subsidiaries.

         12.5 Tax Treatment. If any interest in any Loan Document is transferred
to any Transferee which is organized under the laws of any jurisdiction other
than the United States or 


                                       67
<PAGE>   75

any State thereof, the transferor Lender shall cause such Transferee,
concurrently with the effectiveness of such transfer, to comply with the
provisions of Section 2.16(b).

                                  ARTICLE XIII

                                     NOTICES

         13.1 Giving Notice. Except as otherwise permitted by Section 2.11 with
respect to borrowing notices, all notices and other communications provided to
any party hereto under this Agreement or any other Loan Document shall be in
writing, by facsimile, first class U.S. mail or overnight courier and addressed
or delivered to such party at its address set forth below its signature hereto
or at such other address as may be designated by such party in a notice to the
other parties given pursuant to this Section 13.1. Any notice, if mailed and
properly addressed with first class postage prepaid, return receipt requested,
shall be deemed given three (3) Business Days after deposit in the U.S. mail;
any notice, if transmitted by facsimile, shall be deemed given when transmitted;
and any notice given by overnight courier shall be deemed given when received by
the addressee.

         13.2 Change of Address. The Borrower, the Agent and any Lender may each
change the address for service of notice upon it by a notice in writing to the
other parties hereto.

                           [signature pages to follow]


                                       68
<PAGE>   76

         IN WITNESS WHEREOF, the Borrower, the Lenders and the Agent have
executed this Agreement as of the date first above written.

                                  UNDERWRITERS RE GROUP, INC.


                                  By:          /s/ Stephen C. Kolakowski     
                                     ------------------------------------------
                                               Senior Vice President and
                                  Title:       Chief Financial Officer       
                                        ---------------------------------------
                                       Address:   26050 Mureau Road
                                                  Calabasas, California 91302
                                                  Attn: Stephen C. Kolakowski


                                       Telecopy:  (818) 878-9500
                                       Telephone: (818) 878-9535



Commitment     $10,000,000         THE FIRST NATIONAL BANK OF CHICAGO,
                                   Individually and as Agent

                                   By:      /s/ Thomas W. Doddridge  
                                     ------------------------------------------
                                   Title:       First Vice President        
                                         --------------------------------------
                                       Address:    One First National Plaza
                                                   Mail Suite 0085
                                                   Chicago, Illinois  60670
                                                   Attn:  Thomas W. Doddridge

                                       Telecopy:   (312) 732-4033
                                       Telephone:  (312) 732-3881


                                       69
<PAGE>   77


Commitment      $10,000,000        FIRST UNION NATIONAL BANK

                                   By:      /s/ Thomas L. Stitchberry     
                                     ------------------------------------------
                                   Title:       Senior Vice President      
                                         --------------------------------------
                                     Address:  301 South College Street, PW5
                                               Charlotte, North Carolina  28288
                                               Attn: Dan Norton

                                     Telecopy:  (704) 383-7611
                                     Telephone: (704) 374-4279



Commitment       $ 9,000,000       MELLON BANK, N.A.

                                   By:      /s/ Susan M. Whitewood         
                                     ------------------------------------------
                                   Title:       Vice President 
                                         --------------------------------------
                                     Address:   One Mellon Bank Center
                                                Room 370
                                                Pittsburgh, Pennsylvania  15258
                                                Attn:  Susan M. Whitewood

                                     Telecopy:  (412) 234-8087
                                     Telephone: (412) 234-7112



                                       70
<PAGE>   78


Commitment        $7,000,000       THE NORTHERN TRUST COMPANY

                                   By:      /s/ John E. Burda   
                                     ------------------------------------------
                                   Title:       Second Vice President 
                                         --------------------------------------
                                     Address:    50 S. LaSalle Street
                                                 Chicago, Illinois  60675
                                                 Attn: Marcia P. Saper

                                     Telecopy:   (312) 557-2673
                                     Telephone:  (312) 444-3416

Commitment        $7,000,000       SANWA BANK CALIFORNIA

                                   By:      /s/ Dirk Price 
                                     ------------------------------------------
                                   Title:       Vice President  
                                         --------------------------------------
                                      Address:  601 South Figueroa Street
                                                (W8-6)
                                                Los Angeles, California  90017
                                                Attn: Dirk Price

                                      Telecopy:   (213) 896-7282
                                      Telephone:  (213) 896-7850

Initial Aggregate  $43,000,000
Commitment


                                       71

<PAGE>   1

                                                                EXHIBIT 10.27(b)


                                LIST OF EXHIBITS
                                     TO THE
                          UNDERWRITERS CREDIT AGREEMENT


       EXHIBIT NUMBER               DESCRIPTION
       --------------               -----------
              A                     Ratable Note

              B                     Competitive Bid Note

              C                     Competitive Bid Quote Request

              D                     Invitation for Competitive Bid Quotes

              E                     Competitive Bid Quote

              F                     Compliance Certificate

              G                     Assignment Agreement

             5.3                    Approvals and Consents

             5.4                    Governmental Consents

             5.7                    Taxes

             5.9                    Capitalization

            5.10                    ERISA

            5.16                    Owned Properties

            5.17                    Indebtedness

            5.19                    Environmental

            5.21                    Insurance Licenses

            6.11                    Closing Debt Indebtedness

            6.14                    Investments

            6.16                    Liens



<PAGE>   1
                                                                Exhibit 10.27(c)


                                    GUARANTY


     This Guaranty is made as of the 31st day of December, 1998 by Underwriters
Reinsurance Company, a New Hampshire insurance company (the "Guarantor"), in
favor of the Agent and the Lenders (as hereinafter defined).

                                    RECITALS:

     A. Underwriters Re Group, Inc. (formerly, URC Holdings Corp.; the
"Borrower"), the financial institutions named therein (the "Lenders") and The
First National Bank of Chicago, as Agent (the "Agent"), are parties to that
certain Credit Agreement dated as of October 23, 1996, as amended as of the date
hereof (as from time to time further modified, supplemented or amended, the
"Credit Agreement"). Each term used but not otherwise defined herein shall have
the meaning ascribed to such term by the Credit Agreement.

     B. The Guarantor is a direct wholly-owned subsidiary of the Borrower and
will receive substantial and direct benefits from the extensions of credit
contemplated by the Credit Agreement and is entering into this Guaranty to
induce the Agent and the Lenders to enter into an amendment to the Credit
Agreement and to continue to extend credit to the Borrower thereunder.

     C. The execution and delivery of this Guaranty is a condition precedent to
the obligation of the Lenders to continue to extend credit to the Borrower
pursuant to the Credit Agreement.

     NOW THEREFORE, in consideration of the foregoing and other good and
valuable consideration and as an inducement to the Lenders to enter into the
Credit Agreement and to continue to extend credit to the Borrower, the Guarantor
hereby agrees as follows:

         1. The Guarantor hereby absolutely, irrevocably and unconditionally
guarantees prompt, full and complete payment when due, whether at stated
maturity, upon acceleration or otherwise, and at all times thereafter, of (a)
the principal of and interest on the Loans made by the Lenders to, and any Notes
held by the Lenders of, the Borrower and (b) all other amounts from time to time
owing to the Lenders or the Agent by the Borrower under the Credit Agreement,
the Notes and the other Loan Documents, including without limitation all
"Obligations", as defined in the Credit Agreement (collectively, the "Guaranteed
Obligations"). This is a guaranty of payment, not a guaranty of collection.

         2. The Guarantor waives notice of the acceptance of this Guaranty and
of the extension or incurrence of the Guaranteed Obligations or any part
thereof. The Guarantor further waives all setoffs and counterclaims and
presentment, protest, notice, filing of claims with a court in the event of
receivership, bankruptcy or reorganization of the Borrower, demand or action on
delinquency in respect of the Guaranteed Obligations or any part thereof,
including any right to require the Agent or the Lenders to sue the Borrower, any
other guarantor 
<PAGE>   2
or any other person obligated with respect to the Guaranteed Obligations or any
part thereof, or otherwise to enforce payment thereof against any collateral
securing the Guaranteed Obligations or any part thereof.

         3. The Guarantor hereby agrees that, to the fullest extent permitted by
law, its obligations hereunder shall be continuing, absolute and unconditional
under any and all circumstances and not subject to any reduction, limitation,
impairment, termination, defense (other than indefeasible payment in full),
setoff, counterclaim or recoupment whatsoever (all of which are hereby expressly
waived by it to the fullest extent permitted by law), whether by reason of any
claim of any character whatsoever, including, without limitation, any claim of
waiver, release, surrender, alteration or compromise. The validity and
enforceability of this Guaranty shall not be impaired or affected by any of the
following: (a) any extension, modification or renewal of, or indulgence with
respect to, or substitution for, the Guaranteed Obligations or any part thereof
or any agreement relating thereto at any time; (b) any failure or omission to
perfect or maintain any lien on, or preserve rights to, any security or
collateral or to enforce any right, power or remedy with respect to the
Guaranteed Obligations or any part thereof or any agreement relating thereto, or
any collateral securing the Guaranteed Obligations or any part thereof; (c) any
waiver of any right, power or remedy or of any default with respect to the
Guaranteed Obligations or any part thereof or any agreement relating thereto or
with respect to any collateral securing the Guaranteed Obligations or any part
thereof; (d) any release, surrender, compromise, settlement, waiver,
subordination or modification, with or without consideration, of any collateral
securing the Guaranteed Obligations or any part thereof, any other guaranties
with respect to the Guaranteed Obligations or any part thereof, or any other
obligations of any person or entity with respect to the Guaranteed Obligations
or any part thereof; (e) the enforceability or validity of the Guaranteed
Obligations or any part thereof or the genuineness, enforceability or validity
of any agreement relating thereto or with respect to any collateral securing the
Guaranteed Obligations or any part thereof; (f) the application of payments
received from any source to the payment of indebtedness other than the
Guaranteed Obligations, any part thereof or amounts which are not covered by
this Guaranty even though the Lenders might lawfully have elected to apply such
payments to any part or all of the Guaranteed Obligations or to amounts which
are not covered by this Guaranty; (g) any change of ownership of the Borrower or
the insolvency, bankruptcy or any other change in the legal status of the
Borrower; (h) any change in, or the imposition of, any law, decree, regulation
or other governmental act which does or might impair, delay or in any way affect
the validity, enforceability or the payment when due of the Guaranteed
Obligations; (i) the failure of the Borrower to maintain in full force, validity
or effect or to obtain or renew when required all governmental and other
approvals, licenses or consents required in connection with the Guaranteed
Obligations or this Guaranty, or to take any other action required in connection
with the performance of all obligations pursuant to the Guaranteed Obligations
or this Guaranty; (j) the existence of any claim, setoff or other rights which
the Guarantor may have at any time against the Borrower or any other guarantor
in connection herewith or with any unrelated transaction; (k) the Lenders'
election, in any case or proceeding instituted under chapter 11 of the United
States Bankruptcy Code, of the application of section 1111(b)(2) of the United
States Bankruptcy Code; (l) any borrowing, use of cash collateral, or grant of a
security interest by the Borrower, as debtor in possession, under section 363 or
364 of the United States Bankruptcy Code; (m) the disallowance of all or any
portion of any of the Lenders' claims for repayment of the Guaranteed
Obligations under section 502 or 506 of the United States Bankruptcy Code; or


                                       2
<PAGE>   3
(n) any other fact or circumstance which might otherwise constitute grounds at
law or equity for the discharge or release of the Guarantor from its obligations
hereunder, all whether or not the Guarantor shall have had notice or knowledge
of any act or omission referred to in the foregoing clauses (a) through (n) of
this paragraph. It is agreed that the Guarantor's liability hereunder is
independent of any other guaranties or other obligations at any time in effect
with respect to the Guaranteed Obligations or any part thereof and that the
Guarantor's liability hereunder may be enforced regardless of the existence,
validity, enforcement or non-enforcement of any such other guaranties or other
obligations or any provision of any applicable law or regulation purporting to
prohibit payment by the Borrower of the Guaranteed Obligations in the manner
agreed upon among the Agent, the Lenders and the Borrower.

         4. Credit may be granted or continued from time to time by the Lenders
to the Borrower without notice to or authorization from the Guarantor regardless
of the Borrower's financial or other condition at the time of any such grant or
continuation. Neither the Agent nor any Lender shall have an obligation to
disclose or discuss with the Guarantor its assessment of the financial condition
of the Borrower.

         5. Until the irrevocable payment in full of the Obligations and
termination of all commitments which could give rise to any Obligation, the
Guarantor shall have no right of subrogation with respect to the Guaranteed
Obligations and hereby waives any right to enforce any remedy which the Agent or
the Lenders now have or may hereafter have against the Borrower, any endorser or
any other guarantor of all or any part of the Guaranteed Obligations, and the
Guarantor hereby waives any benefit of, and any right to participate in, any
security or collateral given to the Agent or the Lenders to secure payment of
the Guaranteed Obligations or any part thereof or any other liability of the
Borrower to the Agent or the Lenders.

         6. The Guarantor authorizes the Lenders to take any action or exercise
any remedy with respect to any collateral from time to time securing the
Guaranteed Obligations, which the Lenders in their sole discretion shall
determine, without notice to the Guarantor. Notwithstanding any reference herein
to any collateral securing any of the Guaranteed Obligations, it is acknowledged
that, on the date hereof, neither the Guarantor nor any of its Subsidiaries has
granted, or has any obligation to grant, any security interest in or other lien
on any of its property as security for the Guaranteed Obligations.

         7. In the event the Lenders in their sole discretion elect to give
notice of any action with respect to any collateral securing the Guaranteed
Obligations or any part thereof, ten (10) days' written notice mailed to the
Guarantor by ordinary mail at the address shown hereon shall be deemed
reasonable notice of any matters contained in such notice. The Guarantor
consents and agrees that neither the Agent nor the Lenders shall be under any
obligation to marshall any assets in favor of the Guarantor or against or in
payment of any or all of the Guaranteed Obligations.

         8. In the event that acceleration of the time for payment of any of the
Guaranteed Obligations is stayed upon the insolvency, bankruptcy or
reorganization of the Borrower, or otherwise, all such amounts shall nonetheless
be payable by the Guarantor forthwith upon demand by the Agent or the Lenders.
The Guarantor further agrees that, to the extent that the Borrower makes a
payment or payments to any of the Lenders on the Guaranteed Obligations, or the
Agent or the Lenders receive any proceeds of collateral securing the 


                                       3
<PAGE>   4
Guaranteed Obligations, which payment or receipt of proceeds or any part thereof
is subsequently invalidated, declared to be fraudulent or preferential, set
aside or required to be returned or repaid to the Borrower, its estate, trustee,
receiver, debtor in possession or any other party, including, without
limitation, the Guarantor, under any insolvency or bankruptcy law, state or
federal law, common law or equitable cause, then to the extent of such payment,
return or repayment, the obligation or part thereof which has been paid, reduced
or satisfied by such amount shall be reinstated and continued in full force and
effect as of the date when such initial payment, reduction or satisfaction
occurred.

         9. No delay on the part of the Agent or the Lenders in the exercise of
any right, power or remedy shall operate as a waiver thereof, and no single or
partial exercise by the Agent or the Lenders of any right, power or remedy shall
preclude any further exercise thereof; nor shall any amendment, supplement,
modification or waiver of any of the terms or provisions of this Guaranty be
binding upon the Agent or the Lenders, except as expressly set forth in a
writing duly signed and delivered on the Lenders' behalf by the Agent. The
failure by the Agent or the Lenders at any time or times hereafter to require
strict performance by the Borrower or the Guarantor of any of the provisions,
warranties, terms and conditions contained in any promissory note, security
agreement, agreement, guaranty, instrument or document now or at any time or
times hereafter executed pursuant to the terms of, or in connection with, the
Credit Agreement by the Borrower or the Guarantor and delivered to the Agent or
the Lenders shall not waive, affect or diminish any right of the Agent or the
Lenders at any time or times hereafter to demand strict performance thereof, and
such right shall not be deemed to have been waived by any act or knowledge of
the Agent or the Lenders, their agents, officers or employees, unless such
waiver is contained in an instrument in writing duly signed and delivered on the
Lenders' behalf by the Agent. No waiver by the Agent or the Lenders of any
default shall operate as a waiver of any other default or the same default on a
future occasion, and no action by the Agent or the Lenders permitted hereunder
shall in any way affect or impair the Agent's or the Lenders' rights or powers,
or the obligations of the Guarantor under this Guaranty. Any determination by a
court of competent jurisdiction of the amount of any Guaranteed Obligations
owing by the Borrower to the Lenders shall be conclusive and binding on the
Guarantor irrespective of whether the Guarantor was a party to the suit or
action in which such determination was made.

         10. Subject to the provisions of Section 8, this Guaranty shall
continue in effect until the Credit Agreement has terminated, the Guaranteed
Obligations has been paid in full and the other conditions of this Guaranty have
been satisfied.

         11. In addition to and without limitation of any rights, powers or
remedies of the Agent or the Lenders under applicable law, any time after
maturity of the Guaranteed Obligations, whether by acceleration or otherwise,
the Agent or the Lenders may, in their sole discretion, with notice after the
fact to the Guarantor and regardless of the acceptance of any security or
collateral for the payment hereof, appropriate and apply toward the payment of
the Guaranteed Obligations (a) any indebtedness due or to become due from any of
the Lenders to the Guarantor, and (b) any moneys, credits or other property
belonging to the Guarantor (including all account balances, whether provisional
or final and whether or not collected or available) at any time held by or
coming into the possession of any of the Agent or any Lender whether for deposit
or otherwise.


                                       4
<PAGE>   5
         12. The Guarantor agrees to pay all costs, fees and expenses (including
reasonable attorneys' fees and time charges, which attorneys may be employees of
the Agent or a Lender) incurred by the Agent or any Lender in collecting or
enforcing the obligations of the Guarantor under this Guaranty.

         13. This Guaranty shall bind the Guarantor and its successors and
assigns and shall inure to the benefit of the Agent, the Lenders and their
successors and assigns. All references herein to the Lenders shall for all
purposes also include all Purchasers and Participants (as such terms are defined
in the Credit Agreement). All references herein to the Borrower shall be deemed
to include their successors and assigns including, without limitation, a
receiver, trustee or debtor in possession of or for the Borrower.

         14. THIS GUARANTY SHALL BE DEEMED TO HAVE BEEN MADE AT CHICAGO,
ILLINOIS, AND SHALL BE CONSTRUED AND THE RIGHTS AND LIABILITIES OF THE AGENT,
THE LENDERS AND THE GUARANTOR DETERMINED, IN ACCORDANCE WITH THE INTERNAL LAWS,
WITHOUT REGARD TO CONFLICT OF LAWS PROVISIONS, OF THE STATE OF ILLINOIS, BUT
GIVING EFFECT TO FEDERAL LAWS APPLICABLE TO NATIONAL BANKS. THE GUARANTOR
CONSENTS TO THE JURISDICTION OF ANY STATE OR FEDERAL COURT LOCATED WITHIN COOK
COUNTY, ILLINOIS, WAIVES PERSONAL SERVICE OF ANY AND ALL PROCESS UPON IT, AND
CONSENTS THAT ALL SUCH SERVICE OF PROCESS BE MADE BY MESSENGER OR BY REGISTERED
MAIL DIRECTED TO THE GUARANTOR AT THE ADDRESS INDICATED BELOW, AND SERVICE SO
MADE SHALL BE DEEMED TO BE COMPLETED THREE (3) DAYS AFTER THE SAME SHALL HAVE
BEEN POSTED AS AFORESAID. THE GUARANTOR WAIVES ANY OBJECTION BASED ON FORUM NON
CONVENIENS AND ANY OBJECTION TO VENUE OF ANY ACTION INSTITUTED HEREUNDER.
NOTHING CONTAINED HEREIN SHALL AFFECT THE RIGHT OF THE AGENT OR THE LENDERS TO
SERVE LEGAL PROCESS IN ANY OTHER MANNER PERMITTED BY LAW OR AFFECT THE RIGHT OF
THE AGENT OR THE LENDERS TO BRING ANY ACTION OR PROCEEDING AGAINST THE GUARANTOR
OR ITS PROPERTY IN THE COURTS OF ANY OTHER JURISDICTION.

         15. EACH OF THE GUARANTOR AND, BY THEIR ACCEPTANCE HEREOF, THE AGENT
AND EACH LENDER, WAIVES TRIAL BY JURY WITH RESPECT TO DISPUTES ARISING
HEREUNDER.

         16. Wherever possible, each provision of this Guaranty shall be
interpreted in such manner as to be effective and valid under applicable law,
but if any provision of this Guaranty shall be prohibited by or invalid under
such law, such provision shall be ineffective to the extent of such prohibition
or invalidity without invalidating the remainder of such provision or the
remaining provisions of this Guaranty.

         17. Except as otherwise expressly provided herein, any notice required
or desired to be served, given or delivered to any party hereto under this
Guaranty shall be in writing by facsimile, U.S. mail or overnight courier and
addressed or delivered to such party (a) if to the Agent or the Lenders, at
their respective addresses set forth in the Credit Agreement, or 


                                       5
<PAGE>   6
(b) if to the Guarantor, at its address indicated on Exhibit A hereto, or to
such other address as the Agent or the Lenders or the Guarantor designates to
the Agent in writing. All notices by United States mail shall be sent registered
mail, return receipt requested. Except as otherwise expressly provided herein,
all notices hereunder shall be effective upon delivery or refusal of receipt;
provided, that any notice transmitted by facsimile shall be deemed given when
transmitted.


                                       6
<PAGE>   7
         IN WITNESS WHEREOF, the Guarantor has entered into this Guaranty as of
the date first above written.



                                       UNDERWRITERS REINSURANCE COMPANY

                                       By:   /s/ Stephen C. Kolakowski         
                                          --------------------------------------
                                             Stephen C. Kolakowski

                                             Senior Vice President and
                                       Its:  Chief Financial Officer   
                                           -------------------------------------


                                       7
<PAGE>   8
                              EXHIBIT A TO GUARANTY


Underwriters Reinsurance Company
26050 Mureau Road
Calabasas, California 91302
Attn.: Stephen C. Kolakowski
Telephone:  (818) 878-9500
Telecopy:   (818) 878-9355

<PAGE>   1
                                                                Exhibit 10.28(a)


- --------------------------------------------------------------------------------


                       AGREEMENT AND PLAN OF AMALGAMATION

                            dated as of July 30, 1998

                                  by and among

                        UNDERWRITERS REINSURANCE COMPANY,

                      UNDERWRITERS ACQUISITION COMPANY LTD.

                                       and

                              VENTON HOLDINGS LTD.


- --------------------------------------------------------------------------------
<PAGE>   2
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----
<S>                                                                                                            <C>
                                   ARTICLE ONE

                               CERTAIN DEFINITIONS

 Section 1.01.  Certain Definitions..........................................................................   2
 Section 1.02.  Terms Generally .............................................................................   6
                                                                                                                
                                   ARTICLE TWO                                                                  
                                                                                                                
                                THE AMALGAMATION                                                                
                                                                                                                
 Section 2.01.  The Amalgamation.............................................................................   6
 Section 2.02.  Effective Time of the Amalgamation; Closing..................................................   6
 Section 2.03.  Effect of the Amalgamation...................................................................   7
 Section 2.04.  Memorandum of Association and Bye-laws of the 
                   Amalgamated Company; Registration                 
                   Number; Directors.........................................................................   7
 Section 2.05.  Consideration. ..............................................................................   7
 Section 2.06.  Surrender and Payment........................................................................   8
 Section 2.07.  Dividends; Voting; Etc.......................................................................   8
 Section 2.08.  No Further Rights............................................................................   9
 Section 2.09.  Cash-Out of Warrants.........................................................................   9
 Section 2.10.  Cash-Out of Options..........................................................................  10
                                                                                                               
                                  ARTICLE THREE                                                                
                                                                                                               
                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY                                                
                                                                                                               
 Section 3.01.  Corporate Organization.......................................................................  10
 Section 3.02.  Authority, Execution, Enforceability.........................................................  11
 Section 3.03.  Capital Structure............................................................................  12
 Section 3.04.  Financial Statements.........................................................................  13
 Section 3.05.  Absence of Certain Changes...................................................................  15
 Section 3.06.  No Conflicts ................................................................................  15
 Section 3.07.  Consents ....................................................................................  15
 Section 3.08.  Compliance with Applicable Law; Permits......................................................  16
 Section 3.09.  Tax Matters .................................................................................  17
 Section 3.10.  Litigation ..................................................................................  18
 Section 3.11.  Employees ...................................................................................  19
 Section 3.12.  Takeover Statutes............................................................................  20
 Section 3.13.  Certain Fees ................................................................................  20
 Section 3.14.  Investment Company...........................................................................  20
 Section 3.15.  Insurance Matters............................................................................  21
 Section 3.16.  Admitted Assets .............................................................................  21
 Section 3.17.  Rights to Name ..............................................................................  21
 Section 3.18.  Letters of Credit............................................................................  22
</TABLE>
<PAGE>   3
<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----
<S>                                                                                                            <C>
 Section 3.19.  Capital Contribution Obligations.............................................................  22
 Section 3.20.  Investments .................................................................................  22
 Section 3.21.  Year 2000 ...................................................................................  22
 Section 3.22.  Interests of Officers, Directors and Shareholders............................................  23
 Section 3.23.  Material Contracts...........................................................................  23
                                                                                                               
                                  ARTICLE FOUR                                                                 
                                                                                                               
                        REPRESENTATIONS AND WARRANTIES OF                                                      
                             PARENT AND ACQUISITION                                                            
                                                                                                               
 Section 4.01.  Corporate Organization.......................................................................  24
 Section 4.02.  Authority, Execution, Enforceability.........................................................  24
 Section 4.03.  No Conflicts ................................................................................  25
 Section 4.04.  Consents ....................................................................................  25
 Section 4.05.  Compliance with Applicable Law...............................................................  25
 Section 4.06.  Sufficient Funds and Assets..................................................................  26
                                                                                                               
                                  ARTICLE FIVE                                                                 
                                                                                                               
                                    COVENANTS                                                                  
                                                                                                               
 Section 5.01.  Reasonable Best Efforts......................................................................  26
 Section 5.02.  Public Announcements.........................................................................  26
 Section 5.03.  Supplemental Information.....................................................................  26
 Section 5.04.  Shareholders' Meeting........................................................................  27
 Section 5.05.  Indemnification .............................................................................  27
 Section 5.06.  Release of Capital Contribution Obligations..................................................  28
 Section 5.07.  Replacement of Obligation Owed to Lloyd's and Mellon Bank....................................  28
 Section 5.08.  Takeover Statutes............................................................................  28
 Section 5.09.  Conduct of Business of the Company...........................................................  28
 Section 5.10.  Acquisition Proposals........................................................................  31
 Section 5.11.  Information, etc. ...........................................................................  32
 Section 5.12.  Lloyd's Auction. ............................................................................  32  
                                                                                                               
                                   ARTICLE SIX                                                                 
                                                                                                               
                         CONDITIONS TO THE AMALGAMATION                                                        
                                                                                                               
 Section 6.01.  Conditions to Each Party's Obligation 
                   to Effect the Amalgamation................................................................  32
 Section 6.02.  Additional Conditions to the Company's 
                   Obligation to Effect the Amalgamation.....................................................  33
 Section 6.03.  Additional Conditions to Parent and 
                   Acquisition's Obligation to Effect the                     
                   Amalgamation..............................................................................  34
</TABLE>


                                      -ii-
<PAGE>   4
<TABLE>
<CAPTION>
                                                                                                               Page
                                                                                                               ----
<S>                                                                                                            <C>
                                  ARTICLE SEVEN                                                                
                                                                                                               
                           TERMINATION AND ABANDONMENT                                                         
                                                                                                               
 Section 7.01.  Termination by the Company, Parent or Acquisition............................................  35
 Section 7.02.  Effect of Termination........................................................................  36
                                                                                                               
                                  ARTICLE EIGHT                                                                
                                                                                                               
                            MISCELLANEOUS PROVISIONS                                                           
                                                                                                               
 Section 8.01.  Amendment and Modification...................................................................  37
 Section 8.02.  Waiver of Compliance; Consents...............................................................  37
 Section 8.03.  Severability and Validity....................................................................  37
 Section 8.04.  Expenses and Obligations.....................................................................  37
 Section 8.05.  Parties in Interest..........................................................................  38
 Section 8.06.  Notices .....................................................................................  38
 Section 8.07.  Governing Law ...............................................................................  39
 Section 8.08.  Counterparts ................................................................................  40
 Section 8.09.  Headings ....................................................................................  40
 Section 8.10.  Entire Agreement; Assignment.................................................................  40
</TABLE>


                                     -iii-
<PAGE>   5
                       AGREEMENT AND PLAN OF AMALGAMATION


     This Agreement and Plan of Amalgamation, dated as of July 30, 1998 (this
"Agreement"), is made by and among UNDERWRITERS REINSURANCE COMPANY, a New
Hampshire insurance company ("Parent"), UNDERWRITERS ACQUISITION COMPANY LTD., a
Bermuda company and a Subsidiary of Parent ("Acquisition") and VENTON HOLDINGS
LTD., a Bermuda company (the "Company").

     WHEREAS, prior to the date hereof, the Board of Directors of the Company
has determined that it is in the best interests of the shareholders of the
Company for Acquisition to be amalgamated with and into the Company (the
"Amalgamation") upon the terms and subject to the conditions set forth herein;

     WHEREAS, prior to the date hereof, the Boards of Directors of Parent and
Acquisition have determined that it is in the best interests of their respective
shareholders for Acquisition to be amalgamated with and into the Company upon
the terms and subject to the conditions set forth herein;

     WHEREAS, as a condition and inducement to Parent and Acquisition entering
into this Agreement and incurring the obligations set forth herein, on the date
hereof each of X.L. INSURANCE COMPANY, LTD., a Bermuda company ("Exel"), RISK
CAPITAL REINSURANCE COMPANY, a Nebraska corporation ("RCRe"), and TRYCO III
LTD., a Bermuda company ("Tryco III"), have granted to Parent an irrevocable
proxy to vote all Shares owned by each on the date hereof or hereafter acquired,
to attend all meetings of the shareholders of the Company and to represent and
otherwise to act for each in the same manner and with the same effect as if done
by each, with respect to the approval of the Amalgamation, when the same is
submitted to shareholders of the Company for approval.

     NOW, THEREFORE, in consideration of the promises and of the mutual
covenants, representations, warranties and agreements herein contained, the
parties hereto agree as follows:
<PAGE>   6
                                      -2-


                                   ARTICLE ONE

                               CERTAIN DEFINITIONS


         Section 1.01. Certain Definitions. Certain capitalized terms used in
this Agreement shall have the meanings set forth below:

         "Class A Shares" means Class A Common Shares, par value $1.00 per
share, of the Company.

         "Class A Warrants" means warrants to purchase Class A Shares.

         "Class B Shares" means Class B Common Shares, par value $1.00 per
share, of the Company.

         "Class B Warrants" means warrants to purchase Class B Shares.

         "Class C Shares" means Class C Common Shares, par value $1.00 per
share, of the Company.

         "Class C Warrants" means warrants to purchase Class C Shares.

         "Company Disclosure Letter" means the Disclosure Letter dated the date
hereof from the Company to Parent and Acquisition.
   
         "Employee Benefit Plan" means each benefit plan maintained or
contributed to by the Company or any of its Subsidiaries or with respect to
which the Company or any of its Subsidiaries may have any liability which
provides (or is intended to provide) benefits to the employees of the Company or
any of its Subsidiaries (or other service providers to the Company or any of its
Subsidiaries), including each pension, retirement or deferred compensation plan,
incentive compensation plan, stock plan, unemployment compensation plan,
vacation pay, severance pay, bonus or benefit arrangement, insurance, medical or
hospitalization program, sickness, accident, disability or death benefit program
or any other fringe benefit.

         "Expiration Date" has the meaning set forth in the Warrant Agreement.
<PAGE>   7
                                      -3-


         "GAAP" means generally accepted accounting principles as in effect in
the United States of America (as such principles may change from time to time).

         "Governmental Authority" means any governmental, quasi-governmental,
judicial or regulatory agency or entity or subdivision thereof, including
without limitation Lloyd's, with jurisdiction over the Company, Parent or
Acquisition or any of their respective Subsidiaries or any of the transactions
contemplated by this Agreement.

         "Instruments," with respect to any Person, means all material
agreements, mortgages, indentures, debentures, trusts, leases, licenses and
other instruments and obligations to or by which such Person or any of its
Subsidiaries or any of their respective properties is subject or bound.

         "Liabilities" means liabilities, debts, claims or obligations of any
nature, whether accrued, absolute, direct or indirect, contingent or otherwise,
whether due or to become due, whether or not of a kind required by GAAP to be
set forth in a financial statement.

         "Lien" means any mortgage, lien, security interest, pledge, lease or
other charge or encumbrance of any kind, including the lien or retained security
title of a purchase money creditor or conditional vendor, and any easement,
right of way or other encumbrance on title to real property, and any agreement
to give any of the foregoing.

         "Material Adverse Effect" means, with respect to the Company or Parent
(as the case may be), any change, event, condition or development that is
materially adverse to the business, assets, liabilities, properties, results of
operations or financial or operating condition of such specified party and its
Subsidiaries, taken as a whole, except for any such change, event, condition or
development resulting from or arising in connection with (i) changes applicable
to participants in one or more of the businesses of the Company or Parent (as
the case may be) generally, (ii) changes in economic, regulatory or political
conditions generally (including without limitation changes in the financial
markets) or (iii) the transactions contemplated by this Agreement.

         "Options" means options to purchase Class C Shares granted under the
Rules of the Venton Holdings Ltd. 1997 Unapproved Executive Share Option Scheme
and similar grants.
<PAGE>   8
                                      -4-


         "Permitted Liens" means Liens that would, individually or in the
aggregate, not have a Material Adverse Effect on the Company.

         "Person" shall mean an individual, corporation, limited liability
company, partnership, association, trust, unincorporated organization or other
entity.

         "Shareholders' Meeting" means the meeting of the Company's shareholders
to approve this Agreement and the Amalgamation and the related transactions
contemplated hereby.

         "Shares" means Class A Shares, Class B Shares and Class C Shares,
collectively.

         "Subsidiary" means, with respect to any Person, each corporation,
partnership or other entity in which such Person owns or controls, directly or
indirectly through one or more intermediaries, a majority of the stock or other
interests having general voting power in the election of directors or Persons
performing similar functions or rights to a majority of any distributions (it
being understood that the Syndicates are not Subsidiaries).

         "Taxes" means any federal, state, county, local or foreign taxes,
charges, fees, levies, or other assessments, including all net income, gross
income, sales and use, ad valorem, transfer, gains, profits, excise, premium,
franchise, real and personal property, gross receipts, capital stock,
production, business and occupation, disability, employment, payroll, license,
estimated, stamp, custom duties, severance or withholding taxes or charges
imposed by any governmental entity, and includes any interest and penalties
(civil or criminal) on or additions to any such taxes and any expenses incurred
in connection with the determination, settlement or litigation of any tax
liability.

         "Tax Return" means a report, return or other information which is
necessary or required for the conduct of its business to be supplied to a
governmental entity with respect to Taxes including, where permitted or
required, combined or consolidated returns for any group of entities that
includes the Company or any of its Subsidiaries.

         "Voting Debt" of any Person means bonds, debentures, notes or other
indebtedness having the right to vote (or convertible into or exercisable for
securities having the right to 
<PAGE>   9
                                      -5-


vote) on any matters on which shareholders of such Person may vote.

         "VUG" means Venton Underwriting Group Ltd., an English company.

         "Warrants" means Class A Warrants, Class B Warrants and Class C
Warrants, collectively.

         In addition, each of the following terms has the meaning set forth in
the Section set forth opposite such term:

Term                                                                  Section
- ----                                                                  -------

Acquisition........................................................   preamble
Advisors Act.......................................................   3.18
Agreement..........................................................   preamble
Amalgamated Company................................................   2.01
Amalgamation.......................................................   preamble
Closing............................................................   2.02
Closing Date.......................................................   2.02
Companies Act......................................................   2.01
Company............................................................   preamble
Company Actuarial Analyses.........................................   3.15(b)
Company Financial Statements.......................................   3.04(a)
Company Insurance Subsidiaries.....................................   3.01(b)
Company Options....................................................   3.03(b)
Confidentiality Letter.............................................   5.11
Consent............................................................   3.07
D&O Insurance......................................................   5.05(b)
Effective Time.....................................................   2.02
Exchange Agent.....................................................   2.06(b)
Exchange Act.......................................................   3.14
Exel...............................................................   preamble
Indemnified Parties................................................   5.05(a)
Letter of Credit...................................................   5.07
Lloyd's............................................................   3.07
Minister...........................................................   3.07
1940 Act...........................................................   3.14
New Shares.........................................................   2.05(b)
Parent.............................................................   preamble
Permits............................................................   3.08(b)
RCRe...............................................................   preamble
Registrar..........................................................   2.02
Stockholders Agreement.............................................   3.03(b)
Syndicates.........................................................   3.10
<PAGE>   10
                                      -6-

Term                                                                  Section
- ----                                                                  -------
Takeover Law.......................................................   3.12
Tryco III..........................................................   preamble
Unpaid Class C Shares..............................................   2.05(a)
VUL................................................................   3.09

         Section 1.02. Terms Generally. (a) The definitions in Section 1.01
shall apply equally to both the singular and plural forms of the terms defined.
Whenever the context may require, any pronoun shall include the corresponding
masculine, feminine and neuter forms. The words "include," "includes" and
"including" shall be deemed to be followed by the phrase "without limitation."

         (b) Unless the context shall otherwise require, all references herein
to (i) Articles, Sections, Exhibits and Schedules shall be deemed references to
Articles and Sections of, and Exhibits and Schedules to, this Agreement, (ii)
Persons include their respective permitted successors and assigns or, in the
case of governmental Persons, Persons succeeding to the relevant functions of
such Persons, (iii) agreements and other contractual instruments include
subsequent amendments, assignments, and other modifications thereto to the date
hereof, (iv) statutes and related regulations include any amendments of same and
any successor statutes and regulations, (v) time shall be deemed to be Bermuda
time and (vi) "$" shall be to United States Dollars.


                                   ARTICLE TWO

                                THE AMALGAMATION


         Section 2.01. The Amalgamation. At the Effective Time, and upon the
terms and subject to the conditions set forth herein, Acquisition shall be
amalgamated with and into the Company in accordance with the provisions of the
Companies Act 1981 of Bermuda (the "Companies Act"). At and after the Effective
Time, the Company and Acquisition shall continue in the form of the amalgamated
company and shall operate under the name "Venton Holdings Ltd." (the
"Amalgamated Company").

         Section 2.02. Effective Time of the Amalgamation; Closing. As soon as
practicable after satisfaction or waiver of the conditions set forth in Article
Six, Parent and Acquisition will cause an application for the registration of an
amal-
<PAGE>   11
                                      -6-


gamated company and such other documents as are required by the Companies Act in
connection with the Amalgamation to be duly filed with the Registrar of
Companies of Bermuda (the "Registrar"). The Amalgamation shall become effective
upon the issuance of the certificate of amalgamation by the Registrar (the time
of such issuance being the "Effective Time"). Prior to such filing, a closing
shall be held, at Conyers, Dill & Pearman at 9:00 a.m. or such other place
and/or time as the parties shall agree, for the purpose of confirming the
satisfaction or waiver of the conditions set forth in Article Six (the
"Closing"). The date upon which the Closing shall occur is referred to herein as
the "Closing Date."

         Section 2.03. Effect of the Amalgamation. The Amalgamation shall have
the effects set forth in Section 109 of the Companies Act.

         Section 2.04. Memorandum of Association and Bye-laws of the Amalgamated
Company; Registration Number; Directors. The memorandum of association of the
Company shall become the memorandum of association of the Amalgamated Company
and thereafter may be amended as provided therein and by law. The bye-laws of
the Company shall become the bye-laws of the Amalgamated Company and thereafter
may be amended as provided therein and by law. The registration number of the
Amalgamated Company in Bermuda after the Effective Time shall be the same
registration number as that of the Company immediately prior to the Effective
Time. The initial directors of the Amalgamated Company shall be: (i) Jeremy
Venton; (ii) Graham Collis; (iii) D. Martin Slade; (iv) Steven H. Newman; (v)
Russell T. John; and (vi) Robert M. Hart; and their addresses shall be in care
of the Company at the address set forth in Section 8.06.

         Section 2.05. Consideration. (a) Except as otherwise provided in
Section 106 of the Companies Act, at the Effective Time, each Share that is
issued and outstanding immediately prior to the Effective Time shall be
canceled, and the holder thereof shall be entitled to receive, pursuant to the
procedures set forth in Section 2.06, $3,081.69 (except as provided in clause
(v)) per Share, without interest thereon, with such consideration to consist of:
(i) for each Class A Share $1,678.94 in cash and the cancellation of $1,402.75
in capital contribution obligations; (ii) for each Class B Share held by Exel
$1,679.11 in cash and the cancellation of $1,402.58 in capital contribution
obligations; (iii) for each Class B Share held by RCRe $1,673.42 in cash and the
cancellation of $1,408.27 in capital contribution obligations; (iv) for each
Class C Share (other than the 996 Class C Shares held by Alec 
<PAGE>   12
                                      -7-


Sharp on which no amount has been paid (the "Unpaid Class C Shares")) $3,081.69
in cash; and (v) for each Unpaid Class C Share $1,832.06 in cash.

         (b) At the Effective Time, by virtue of the Amalgamation and without
any action on the part of Parent, Acquisition, the Company or the holder
thereof, each common share of Acquisition issued and outstanding immediately
prior to the Effective Time shall be converted into and become one validly
issued, fully paid and nonassessable common share, par value $1.00 per share, of
the Amalgamated Company (the "New Shares").

         (c) At the Effective Time, by virtue of the Amalgamation and without
any action on the Part of Parent, Acquisition, the Company or the holder
thereof, each Share which is issued and outstanding immediately prior to the
Effective Time and held by Parent immediately prior to the Effective Time shall
be converted into and become one validly issued, fully paid and nonassessable
New Share.

         Section 2.06. Surrender and Payment. (a) Parent shall enter into
arrangements so that all Shareholders who surrender certificates or other
satisfactory evidence representing Shares on or prior to the Effective Time will
be paid at the Effective Time directly by wire transfer to accounts designated
by such Shareholders.

         (b) Prior to the Effective Time, Parent shall (i) appoint an agent (the
"Exchange Agent") for the purpose of exchanging certificates representing Shares
for the consideration specified in Section 2.05(a) and (ii) irrevocably instruct
and authorize such Exchange Agent to make immediately available funds sufficient
to make all payments in accordance with this Agreement to all Shareholders,
holders of Warrants and holders of Options who surrender certificates or other
satisfactory evidence representing such Shares, Warrants or Options to such
Exchange Agent after the Effective Time.

         (c) Parent shall have the right to make rules, not inconsistent with
the terms of this Agreement, governing the payment of cash pursuant to this
Article Two.

         Section 2.07. Dividends; Voting; Etc. (a) After the Effective Time,
there shall be no further registration of transfers of Shares. If, after the
Effective Time, certificates representing Shares are presented to the
Amalgamated Company or, subject to the provisions of Section 2.07(b), the
Exchange Agent, they shall be canceled and exchanged for the pay-
<PAGE>   13
                                      -9-


ment of the consideration specified in Section 2.05(a) in accordance with the
procedures set forth in this Article Two.

         (b) Any portion of the consideration deposited with the Exchange Agent
pursuant to Section 2.06(a) that remains unclaimed by the holders of Shares
twelve months after the Effective Time shall be returned to Parent or an
affiliate designated by Parent, upon demand, and any such holder who has not
exchanged his Shares for the consideration specified in Section 2.05(a) in
accordance with this Article Two prior to that time shall thereafter look only
to Parent for his claim for the Amalgamation Consideration. Notwithstanding the
foregoing, Parent shall not be liable to any holder of Shares for any amount
paid to a public official pursuant to applicable abandoned property laws. Any
amounts remaining unclaimed by holders of Shares immediately prior to such time
as such amounts would otherwise escheat to or become property of any
Governmental Authority shall, to the extent permitted by applicable law, become
the property of Parent, free and clear of any claim or interest of any Person
previously entitled thereto.

         Section 2.08. No Further Rights. At and after the Effective Time, each
holder of a certificate or certificates that represented issued and outstanding
Shares immediately prior to the Effective Time shall cease to have any rights as
a shareholder of the Company, except for the right to receive the consideration
specified in Section 2.05(a) upon surrender of its certificate or certificates.

         Section 2.09. Cash-Out of Warrants. At the Effective Time, by virtue of
the Amalgamation and without any action on the part of any holder thereof, the
Company shall pay (with the proceeds of the capital contribution required by the
last sentence of this Section 2.09) for each Warrant that is outstanding
immediately prior to the Effective Time, to the holder thereof, an amount in
cash equal to the difference between (a) the consideration per Class A Share,
Class B Share or Class C Share specified in Section 2.05(a) multiplied by the
number of Class A Shares, Class B Shares or Class C Shares subject to such
Warrant and (b) the exercise price of such Warrant. Upon such payment therefor,
such Warrant will no longer be outstanding, and neither the Company nor any
other Person shall have any obligation with respect thereto. At the Effective
Time, Parent shall make a capital contribution to the Company in an amount equal
to $11,419,229.98, which the parties hereto agree is sufficient to make all
payments pursuant to this Section 2.09.
<PAGE>   14
                                      -10-


         Section 2.10. Cash-Out of Options. At the Effective Time, by virtue of
the Amalgamation and without any action on the part of any holder thereof, the
Company shall pay (with the proceeds of the capital contribution required by the
last sentence of this Section 2.10), for each Option that is outstanding
immediately prior to the Effective Time, to the holder thereof, an amount in
cash equal to the difference between (a) the consideration per Class C Share
specified in Section 2.05(a) multiplied by the number of Class C Shares subject
to such Option (or by the number of Class C Shares subject to the Class C
Warrant subject to such Option) and (b) the exercise price of such Option. Upon
such payment therefor, such Option will no longer be outstanding, and neither
the Company nor any other Person shall have any obligation with respect thereto.
At the Effective Time, Parent shall make a capital contribution to the Company
in an amount equal to $6,649,427.97, which the parties hereto agree is
sufficient to make all payments pursuant to this Section 2.10.


                                  ARTICLE THREE

                  REPRESENTATIONS AND WARRANTIES OF THE COMPANY


         The Company hereby represents and warrants to Parent and Acquisition
that except as set forth in the Company Disclosure Letter:

         Section 3.01. Corporate Organization. (a) Each of the Company and its
Subsidiaries is a company duly incorporated, validly existing and in good
standing under the laws of the jurisdiction of its incorporation. Each of the
Company and its Subsidiaries (i) is qualified, licensed or domesticated as a
foreign corporation in all jurisdictions where such qualification, license or
domestication is required to own and operate its properties and conduct its
businesses in the manner and at the places presently conducted; (ii) holds all
franchises, grants, licenses, certificates, permits, consents and orders, all of
which are valid and in full force and effect, from all applicable Bermuda and
foreign Governmental Authorities necessary to own and operate its properties and
to conduct its businesses in the manner and at the places presently conducted;
and (iii) has full power and authority (corporate and other) to own, lease and
operate its properties and to carry on its businesses as presently conducted and
as proposed to be conducted, except where the failure to be so qualified,
licensed or domesticated, or to hold such franchises, grants, licenses,
certifi-
<PAGE>   15
                                      -11-


cates, permits, consents and orders and have such power and authority could not,
individually or in the aggregate, is not reasonably likely to have a Material
Adverse Effect on the Company. Neither the Company nor any of its Subsidiaries
is required to be authorized, qualified, licensed or domesticated as a foreign
corporation under any federal, state or local law in the United States. The
Company has furnished to Parent and Acquisition complete and correct copies of
the memorandum of association and bye-laws of the Company and each of its
Subsidiaries as in effect on the date hereof. Such memoranda of association and
bye-laws are in full force and effect and no other organizational documents are
applicable to or binding upon the Company or any of its Subsidiaries.

         (b) The Company conducts its operations through the Subsidiaries set
forth in the Company Disclosure Letter (collectively, the "Company
Subsidiaries"). Each of the Company Subsidiaries and VUG is (i) duly licensed or
authorized to conduct the business it now conducts in its jurisdiction of
incorporation and (ii) duly licensed or authorized in each other jurisdiction
where it is required to be so licensed or authorized except, in any such case,
where the failure to be so licensed or authorized, individually or in the
aggregate, is not reasonably likely to have a Material Adverse Effect on the
Company. The Company and its Subsidiaries and VUG have made all filings required
by Governmental Authorities except where the failure to file, individually or in
the aggregate, is not reasonably likely to have a Material Adverse Effect on the
Company.

         Section 3.02. Authority, Execution, Enforceability. The Company has all
requisite corporate power and authority to enter into this Agreement and,
subject to the shareholder approval described below, to consummate the
transactions contemplated hereby. The execution and delivery of this Agreement
by the Company, the performance by the Company of its obligations hereunder and
the consummation by the Company of the transactions contemplated hereby have
been duly authorized by all necessary corporate action on the part of the
Company (including approval by the necessary vote of all members of its Board of
Directors, which approval includes a resolution recommending that this Agreement
and the transactions contemplated hereby be approved by the shareholders of the
Company), subject only to the approval of the provisions of this Agreement
(which are the terms and means of effecting the Amalgamation) by the affirmative
vote of Persons holding or representing by 
<PAGE>   16
                                      -12-


proxy not less than three-fourths of the Shares voting at the Shareholders'
Meeting at which two or more Persons holding or representing by proxy more than
one-third of the issued and outstanding Shares shall constitute a quorum. This
Agreement has been duly executed and delivered by the Company and constitutes a
legal, valid and binding obligation of the Company, enforceable against the
Company in accordance with its terms, subject with respect to enforceability to
the effect of bankruptcy, insolvency, reorganization, moratorium or similar laws
now or hereafter affecting the enforcement of creditors' rights generally and to
the availability of equitable remedies.

         Section 3.03. Capital Structure. (a) As of the date hereof and as of
the Closing, the authorized share capital of the Company is $120,000 comprised
of 120,000 ordinary shares with a par value of $1.00 per share. As of the date
hereof and, except to the extent Options or Warrants are exercised, as of the
Closing, (i) 58,180 Class A Shares were issued and outstanding, (ii) 29,408
Class B Shares were issued and outstanding and (iii) 6,205 Class C Shares were
issued and outstanding. There is no Voting Debt of the Company issued and
outstanding. All of the issued and outstanding securities of the Company have
been duly authorized and validly issued, are fully paid and non-assessable, and
were issued in compliance with all applicable Bermuda, United States federal,
state and other foreign laws regulating the offer, sale or issuance of such
securities.

         (b) There are no options, warrants, calls, rights, commitments and
agreements of any character to which the Company is a party or by which it is
bound obligating the Company to issue, deliver or sell, or cause to be issued,
delivered or sold, additional shares of capital stock or any Voting Debt of the
Company or obligating the Company to grant, extend or enter into any such
option, warrant, call, right, commitment or agreement (collectively, "Company
Options"), except, as of the date hereof and, except to the extent Options or
Warrants are exercised, as of the Closing, for (i) Class A Warrants to purchase
an aggregate of 5,086 Class A Shares, (ii) Class B Warrants to purchase an
aggregate of 643 Class B Shares, (iii) Class C Warrants to purchase an aggregate
of 504 Class C Shares and (iv) Options to purchase (x) an aggregate of 3,359
Class C Shares and (y) Class C Warrants to purchase an aggregate 328 Class C
Shares. The Company is not subject to any obligation (contingent or otherwise)
to purchase, redeem or otherwise acquire or retire any of its securities, except
as set forth in the Second Amended and Restated Stockholders Agreement dated May
21, 1997, among the Trident Partnership, L.P., Tryco III, RCRe, Exel, the
Management Investors signatory thereto and the Company (the "Stockholders
Agreement"). The Company has 
<PAGE>   17
                                      -13-


delivered a true and correct copy of the Stockholders Agreement to Parent and
Acquisition. The Stockholders Agreement shall, if necessary, be amended at or
prior to the Effective Time so that the Company shall have no obligations
thereunder and so that the Syndicate 1207 Option (as defined therein) shall not
be in effect without having been exercised.

         (c) Since December 31, 1997, the Company has not (i) made or agreed to
make any stock split or stock dividend, or issued or permitted to be issued any
shares of capital stock, or securities exercisable for or convertible into
shares of capital stock, of the Company other than pursuant to and as required
by the terms of any Company Option outstanding as of the date hereof; (ii)
repurchased, redeemed or otherwise acquired any shares of capital stock of the
Company; or (iii) declared, set aside, made or paid to the shareholders of the
Company dividends or other distributions on the outstanding shares of capital
stock of the Company.

         (d) The Company Disclosure Letter lists each Subsidiary of the Company
and, except for the capital stock of such Subsidiaries and the other ownership
interests listed in the Company Disclosure Letter, the Company does not own,
directly or indirectly, any capital stock or other ownership interest in any
corporation, partnership, joint venture or other entity. All the outstanding
shares of capital stock of each Subsidiary of the Company have been validly
issued and are fully paid and nonassessable and are owned by the Company, by one
or more Subsidiaries of the Company or by the Company and one or more such
Subsidiaries, free and clear of all Liens. Except as set forth above, there are
no securities, options, warrants, rights, commitments or agreements of any kind
to which the Company or any Subsidiary is a party or by which any of them is
bound obligating any of them to issue, sell or deliver, or repurchase, redeem or
otherwise acquire, shares of capital stock or other equity or voting securities
of any Subsidiary, or obligating any of them to issue, sell, deliver, grant,
extend or enter into any such security, option, warrant, right, commitment or
agreement.

         Section 3.04. Financial Statements. (a) The Company has delivered or
made available to Parent a true and complete copy of the audited Consolidated
Balance Sheets of the Company and its Subsidiaries as of December 31, 1995, 1996
and 1997 and the related audited Consolidated Statements of Operations,
Statements of Shareholders' Equity and Statements of Cash Flows of the Company
and its Subsidiaries for the twelve
<PAGE>   18
                                      -14-


month periods ended December 31, 1995, 1996 and 1997 (collectively, the "Company
Financial Statements").

         (b) As of their respective dates and for the periods indicated, the
Company Financial Statements (i) complied as to form in all material respects
with applicable accounting requirements, (ii) are in accordance, in all material
respects, with the books and records of the Company, which are complete and
accurate in all material respects and which have been maintained in accordance
with good business practices, and (iii) present fairly the consolidated
financial position of the Company and its Subsidiaries and the related results
of operations, changes in shareholders' equity and cash flows as of the dates
and for the periods indicated in accordance with GAAP applied on a consistent
basis throughout the periods indicated, except as may otherwise be specifically
indicated therein.

         (c) The Company has delivered or prior to the Closing will deliver to
Parent true and complete copies of the Consolidated Balance Sheet of the Company
and its Subsidiaries as of March 31, 1998 and the related Consolidated Statement
of Operations, Statement of Shareholders' Equity and Statement of Cash Flows of
the Company and its Subsidiaries for the three months then ended, and true and
complete copies of the Consolidated Balance Sheet of the Company and its
Subsidiaries as of June 30, 1998 and the related Consolidated Statement of
Operations, Statement of Shareholders' Equity and Statement of Cash Flows of the
Company and its Subsidiaries for the six months then ended (collectively, the
"Company Interim Financial Statements").

         (d) As of their respective dates and for the periods indicated, the
Company Interim Financial Statements present fairly the consolidated financial
position of the Company and its Subsidiaries and the related results of
operations, changes in shareholders' equity and cash flows as of the dates and
for the periods indicated in accordance with generally accepted accounting
principles applied on a basis consistent with the Company Financial Statements.

         (e) The Company has delivered or prior to the Closing will deliver to
Parent true and complete copies of the audited Balance Sheets of each of
Yachtsure Ltd. and Venton Risk Services Ltd. as of December 31, 1997 and the
related audited Statements of Operations, Statements of Shareholder's Equity and
Statements of Cash Flows of each of Yachtsure Ltd. and Venton Risk Services Ltd.
for the twelve months then ended.
<PAGE>   19
                                      -15-


         (f) The Company has delivered or prior to the Closing will deliver to
Parent true and complete copies of the audited Annual Reports and Accounts of
each of the Syndicates as of December 31, 1995, 1996 and 1997 and for the twelve
month periods then ended.

         Section 3.05. Absence of Certain Changes. (a) Except as set forth in
the Company Disclosure Letter, neither the Company nor any of its Subsidiaries
has any liabilities of any kind whatsoever, whether accrued, contingent,
absolute, determined, determinable or otherwise, other than: (i) liabilities
provided for in the Company Financial Statements; (ii) liabilities incurred
since the date of the Company Financial Statements in the ordinary course of
business, in amounts and on terms consistent with past practice; (iii)
liabilities disclosed in the Company Disclosure Letter; and (iv) other
undisclosed liabilities which, individually or in the aggregate, are not
reasonably likely to have a Material Adverse Effect on the Company.

         (b) Since December 31, 1997 there has been no event or circumstance
that has had a Material Adverse Effect on the Company.

         Section 3.06. No Conflicts. The execution, delivery and performance of
this Agreement and the consummation of the transactions contemplated hereby will
not (i) result in any violation of or be in conflict with or constitute a breach
or default (with or without notice or lapse of time or both) or loss of material
benefit or acceleration under the memorandum of association, bye-laws or any
other Instrument of the Company or any of its Subsidiaries, except for any such
violation, conflict, breach or default, loss or acceleration, which,
individually on in the aggregate, could not reasonably be expected to have a
Material Adverse Effect on the Company, or (ii) result in the creation of any
Lien other than Permitted Liens.

         Section 3.07. Consents. (a) Except for the filing of the application to
register the Amalgamation pursuant to the Companies Act and the consent of the
Minister of Finance of Bermuda (the "Minister") to the Amalgamation and the
approval by The Corporation and Society of Lloyd's ("Lloyd's") to the
Amalgamation and the transactions contemplated by this Agreement, no consent,
approval, order or authorization of, or registration, qualification,
designation, declaration or filing with, any Governmental Authority ("Consent")
is required on the part of the Company, any of its Subsidiaries, or any of the
<PAGE>   20
                                      -16-


shareholders of the Company (including in respect of the Syndicates) in
connection with the transactions contemplated by this Agreement, except where
failure to obtain such Consent could not reasonably be expected to have a
Material Adverse Effect on the Company.

         (b) The Company (including all entities it controls) does not hold
assets located in the United States of America having an aggregate book value of
$15.0 million or more, other than investment assets, voting securities and
non-voting securities. For the purpose of this representation, investment assets
means cash, deposits in financial institutions, other money market instruments
and instruments evidencing government obligations. The Company is not
incorporated in the United States, is not organized under the laws of the United
States, and does not have its principal offices within the United States. Other
than as described in this paragraph, the Company (including all entities it
controls) did not in its most recent fiscal year make aggregate sales in or into
the United States of $25 million or more. Through its wholly owned subsidiary,
New Street Holdings, Ltd., the Company provides management services under
contract with Syndicates 376, 1183 and 1207 which accept insurance risk placed
by London brokers, some of which risk is that of policyholders located in the
United States. The Company controls a corporate member of Lloyd's, VUL, which is
the sole corporate member of Syndicate 1207. In their most recent fiscal years,
none of the Syndicates, the Company, VUL nor any entity controlled by the
Syndicates, the Company or VUL, transacted business in the United States or
directly with any policyholders or insurance brokers located in the United
States. For the purposes of this Section 3.07(b), "United States" shall include
all of the States, the territories, possessions and commonwealths of the United
States and the District of Columbia.

         Section 3.08. Compliance with Applicable Law; Permits. (a) Subject to
obtaining the Consents referred to in Section 3.07, the execution, delivery and
performance of this Agreement and the taking of the other actions contemplated
by this Agreement to be performed by the Company will not result in any default
or violation of any judgment, decree, order, law, statute, rule or regulation of
any Governmental Authority applicable to the Company or any of its Subsidiaries,
except for such defaults or violations as are not reasonably likely to have a
Material Adverse Effect on the Company.

         (b) Each of the Company, its Subsidiaries, VUG and the Syndicates is in
compliance with all judgments, decrees, 
<PAGE>   21
                                      -17-


orders, statutes, laws, ordinances, rules, regulations and, to the Company's
best knowledge, policies of all Governmental Authorities, including, without
limitation, those that govern insurance matters, to which it or any of its
properties or assets is subject except where such failure to comply is not
reasonably likely to have a Material Adverse Effect on the Company. Each of the
Company, its Subsidiaries, VUG and the Syndicates has all permits, licenses,
orders, certificates, authorizations and approvals of any Governmental Authority
(collectively, "Permits") that are material to the conduct of its business as
presently conducted and as proposed to be conducted; all such Permits are in
full force and effect, and each of the Company, its Subsidiaries, VUG and the
Syndicates has fulfilled and performed all obligations necessary to maintain
such Permits; except, in each case, for such failures to obtain, to maintain in
full force and effect and to fulfill and perform which would not have a Material
Adverse Effect on the Company. Venton Underwriting Agencies Limited (and any
other Subsidiary to which the Lloyd's solvency tests apply) exceeds as of the
date hereof and as of the Effective Time the then applicable minimum standards
of solvency established by the Lloyd's solvency tests. There are no defaults
under any Instrument of the Company or any of its Subsidiaries, except for such
defaults that, individually or in the aggregate, are not reasonably likely to
have a Material Adverse Effect on the Company.

         Section 3.09. Tax Matters. (a) Filing of Timely Tax Returns. The
Company and each of its Subsidiaries have filed all Tax Returns required to be
filed by each of them under applicable law. All Tax Returns were in all material
respects (and, as to Tax Returns not filed as of the date hereof, will be) true,
complete and correct and filed on a timely basis. The Company has made available
to Parent a true and correct copy of each income Tax Return of the Company and
each of its Subsidiaries for all taxable periods for which the period for
assessment or collection of income Tax remains open, and no agreement, waiver or
consent to extend the period for the assessment or collection of any Tax is
currently in effect.

         (b) The Company and each of its Subsidiaries have, within the time and
in the manner prescribed by law, withheld or paid (and until the Closing Date
will withhold or pay within the time and in the manner prescribed by law) all
Taxes that are currently due and payable or required to be withheld except for
those contested in good faith and for which adequate reserves have been taken.
To the knowledge of the Company, there 
<PAGE>   22
                                      -18-


are no investigations or audits with regard to the Company or any of its
Subsidiaries with respect to Taxes.

         (c) The Company and its Subsidiaries have established (and until the
Closing Date will maintain) on their books and records reserves adequate to pay
all Taxes and reserves for deferred income taxes in accordance with GAAP.

         (d) There are no Tax liens upon the assets of the Company or any of its
Subsidiaries except liens for Taxes not yet due.

         (e) Neither the Company nor any of its Subsidiaries has any liability,
direct or indirect, absolute or contingent, for the Taxes of any other Person.
Except for Subsidiaries which are Eligible Corporate Underwriters, within the
meaning of the Closing Agreement between the Council of Lloyds and the Internal
Revenue Service, dated March 2, 1994 (the "Closing Agreement"), neither the
Company nor any of its Subsidiaries in the last ten years has been engaged in
trade or business in the United States (within the meaning of Section 864(b) of
the Internal Revenue Code of 1986, as amended ("Code")), and in the case of the
Subsidiaries which are Non-U.S. Corporate Underwriters (as defined in the
Closing Agreement), the only income which is effectively connected with that
trade or business in the United States (within the meaning of Section 864(c) of
the Code) is its taxable USCI or USCL (as such terms are used in the Closing
Agreement). Venton Underwriting Ltd., a Bermuda company and a wholly owned
subsidiary of the Company ("VUL"), at all times has been fiscally resident in
Bermuda other than its U.K. branch.

         Section 3.10. Litigation. There are no actions, suits, claims,
proceedings or investigations pending against, or, to the knowledge of the
Company, threatened against or affecting, the Company, any of its Subsidiaries,
VUG or any Syndicate at Lloyd's managed by a Subsidiary ("Syndicates") or any of
their respective properties before any Governmental Authority or otherwise other
than in the ordinary course of business which (a) individually or in the
aggregate, are reasonably likely to have a Material Adverse Effect on the
Company; or (b) in any manner challenges or seeks to prevent, enjoin, alter or
delay the transactions contemplated hereby. As of the date hereof, to the
knowledge of the Company, there are no actions, suits, claims, proceedings or
investigations pending or threatened against the Company, any of its
Subsidiaries, VUG or any Syndicate or any of their respective properties before
any Governmental Authority or otherwise, whether or not in the ordi-
<PAGE>   23
                                      -19-


nary course of business, which individually or in the aggregate are reasonably
likely to have a Material Adverse Effect on the Company. As of the date hereof,
neither the Company nor any of its Subsidiaries nor any of their respective
properties is subject to any order, writ, judgment, injunction, decree,
determination or award having, or reasonably likely to have, a Material Adverse
Effect on the Company or which would prevent, enjoin, alter or delay the
consummation of the transactions contemplated hereby.

         Section 3.11. Employees. (a) The Company Disclosure Letter lists all
employment contracts and similar arrangements between the Company or any of its
Subsidiaries and its employees, and all plans and arrangements pursuant to which
the Company or any of its Subsidiaries is obligated to make any payment to
confer any benefit upon or accelerate the vesting or exercisability of any
benefit for any officer, director, employee or agent of the Company or any of
its Subsidiaries, including as a result of or in connection with any of the
transactions contemplated by this Agreement or any transaction or transactions
resulting in a change of control of the Company (including termination of
employment). As of the date hereof, the Company is not aware that any officer,
director, executive or key employee of the Company or any of its Subsidiaries or
any group of employees of the Company or any of its Subsidiaries has any plans
to terminate his, her or its employment. (i) The Company and its Subsidiaries
have complied with all laws relating to the employment of labor, including
provisions thereof relating to wages, hours, equal opportunity, and collective
bargaining except where the failure so to comply is not reasonably likely to
have a Material Adverse Effect on the Company, (ii) no labor dispute with
employees of the Company or any Subsidiary exists or, to the knowledge of the
Company, is threatened, except as are not reasonably likely to have a Material
Adverse Effect on the Company, (iii) each Employee Benefit Plan conforms in all
material respects to, and its administration is in conformity in all material
respects with, all applicable laws, no material liability has been or is
expected to be incurred by the Company or any Subsidiary with respect to any
Employee Benefit Plan except regular periodic contributions to such plans and
full payment has been made of all amounts that the Company or any Subsidiary is
required to have paid as contributions to each Employee Benefit Plan, (iv) the
current value of accrued benefits of each Employee Benefit Plan does not exceed
the current value of such plan's assets, (v) the Company has provided Parent
with a true and correct copy of each of the Employee Benefit Plans and all
contracts relating thereto, or to the funding thereof, (vi) all Employee Benefit
<PAGE>   24
                                      -20-


Plans intended to satisfy applicable tax qualification requirements, or other
requirements necessary to secure favorable tax or other legal treatment comply
in all material respects with such requirements, and (vii) adequate accruals for
all obligations under the Employee Benefit Plans are reflected in the financial
statements of the Company.

         (b) There are no pending or, to the knowledge of the Company,
threatened claims for indemnification by the Company or any of its Subsidiaries
in favor of directors, officers, employees and agents of the Company or any of
its Subsidiaries which, individually or in the aggregate, are reasonably likely
to have a Material Adverse Effect on the Company.

         Section 3.12. Takeover Statutes. No "fair price," "moratorium,"
"control share acquisition" or other similar anti-takeover or change of control
statute or regulation enacted under any law (a "Takeover Law") is applicable to
the Amalgamation or the other transactions contemplated hereby. The Company has
taken all steps necessary to irrevocably exempt the transactions contemplated by
this Agreement from any applicable provisions of the Company's or any
Subsidiary's memorandum of association or bye-laws.

         Section 3.13. Certain Fees. No finder, broker, agent, financial advisor
or other intermediary has acted on behalf of the Company in connection with this
Agreement or the transactions contemplated hereby, where such finder, broker,
agent, financial advisor or other intermediary would be entitled to any payment
by the Company in connection herewith or therewith, other than obligations owing
to Goldman Sachs & Co. referred to in the Company Disclosure Letter. In
addition, the Company and its Subsidiaries will not be liable for any fees and
expenses incurred in connection with the transactions contemplated hereby in
excess of $3,176,633 in the aggregate.

         Section 3.14. Investment Company. Neither the Company nor any of its
Subsidiaries conducts activities of or is otherwise deemed under applicable law
to control an "investment advisor" as such term is defined in Section 2(a)(20)
of the Investment Company Act of 1940, as amended (the "1940 Act"), whether or
not registered under the Investment Advisors Act of 1940, as amended (the
"Advisors Act"). Neither the Company nor any of its Subsidiaries is an
"investment company" as defined under the 1940 Act, and neither the Company nor
any of its Subsidiaries sponsors any Person that is such an investment company
nor required to be registered or licensed as a broker-
<PAGE>   25
                                      -21-


dealer under the Securities Exchange Act of 1934, as amended (the "Exchange
Act").

         Section 3.15. Insurance Matters. (a) All reinsurance and coinsurance
treaties or agreements, including retrocessional agreements, to which the
Company or any of its Subsidiaries or any Syndicate is a party or under which
the Company or any of its Subsidiaries or any Syndicate has any existing rights,
obligations or liabilities are in full force and effect, except for such
treaties or agreements the failure to be in full force and effect of which is
not, individually or in the aggregate, reasonably likely to have a Material
Adverse Effect on the Company.

         (b) Prior to the date hereof, the Company has delivered or made
available to Parent a true and complete copy of any actuarial reports prepared
by actuaries, independent or otherwise, with respect to the Company, any of its
Subsidiaries or any Syndicate since October 31, 1996, and all attachments,
addenda, supplements and modifications thereto (the "Company Actuarial
Analyses"). The information and data furnished by the Company or any Company
Subsidiary or any Syndicate to its independent actuaries in connection with the
preparation of the Company Actuarial Analyses were accurate in all material
respects.

         (c) The reserves carried on the audited financial statements of the
Company and its Subsidiaries for future insurance policy benefits, losses,
claims and similar purposes were, as of the respective dates of such financial
statement, in compliance with the requirements for reserves established by the
relevant insurance departments or Lloyd's, are consistent with reserves
determined in accordance with generally accepted actuarial standards and
principles consistently applied, and were fairly stated in accordance with sound
actuarial and statutory accounting principles.

         Section 3.16. Admitted Assets. The admitted assets of each Subsidiary
of the Company, each Syndicate and VUG as determined under applicable laws or
under the Lloyd's regulations as presently in effect are in an amount at least
equal to the minimum amounts required by applicable laws or regulations.

         Section 3.17. Rights to Name. One or more of the Company and the
Subsidiaries is the owner of all rights, title and interest in and to the trade
name "Venton" as used in connection with the business heretofore or currently
conducted by the Company and its Subsidiaries free and clear of all Liens. 
<PAGE>   26
                                      -22-


All such rights are valid, subsisting and in full force and effect without
infringement or interference by any other Person.

         Section 3.18. Letters of Credit. The only letters of credit outstanding
at the date hereof which support the underwriting activities of the Subsidiaries
are (a) irrevocable standby letters of credit on deposit with Lloyd's in the
aggregate amount of U.S. $122,913,000 issued by Mellon Bank, London Branch for
the benefit of and supporting the underwriting activities of VUL at Lloyd's and
(b) a U.S. $10,000,000 letter of credit issued by Mellon Bank, London Branch in
favor of Citibank N.A. Trustee for Syndicate 376 Surplus Lines Trust Fund. The
Company is not aware of any pending or proposed material increases in the
amounts of these letters of credit, or any proposals to require cash in lieu of
or in addition to letters of credit or to change the capital requirements of
Lloyd's in any material respect.

         Section 3.19. Capital Contribution Obligations. The only contractual
obligations of the shareholders of the Company to make capital contributions to
the Company and its Subsidiaries are pursuant to (a) the Fourth Amended and
Restated Capital Contribution Agreement dated as of December 29, 1997 between
Tryco III and the Company, (b) the Amended and Restated Capital Contribution
Agreement dated as of December 29, 1997 between Exel and the Company and (c) the
Second Amended and Restated Capital Contribution Agreement dated as of December
29, 1997 between RCRe and the Company.

         Section 3.20. Investments. The bonds, stocks and other securities
("Investments") owned by the Company and its Subsidiaries comply in all material
respects with applicable insurance laws and regulations. All Investments are
admitted assets under applicable insurance laws and regulations and statutory
accounting practices, except to the extent that failure to be admitted assets,
individually or in the aggregate, is not reasonably likely to have a Material
Adverse Effect on the Company.

         Section 3.21. Year 2000. To the knowledge of the Company at the date
hereof, except to the extent interfaces with third parties are dependent on
information, services or software provided by third parties, all information
technology presently expected to be used by the Company, its Subsidiaries and
the Syndicates following December 31, 1999 in their administration and business
operations accurately processes or will process date and time data (including,
but not limited to calculating, comparing and sequencing) from, into and between
the 
<PAGE>   27
                                      -23-


years 1999 and 2000 and the twentieth century and the twenty-first century,
including leap year calculations, and neither performance nor functionality of
such technology will be affected by dates prior to, during or after the year
2000. The Company, its Subsidiaries and the Syndicates have no express
contractual obligations under warranty, service or similar agreements (excluding
insurance policies) that specifically refer to and require the remedy of any
information technology defect relating to the year 2000.

         Section 3.22. Interests of Officers, Directors and Shareholders. Except
as set forth in the Company Disclosure Letter and other than in respect of
salaries, incentive awards and bonuses or amounts due in respect of ordinary
travel and business expenses and Employee Benefit Plans, no present officer,
director, employee, agent or shareholder of the Company, any of its Subsidiaries
or VUG nor any immediate family member or affiliate thereof has any agreement,
loan or other obligation outstanding with, to or from the Company or any of its
Subsidiaries or for which the Company or any of its Subsidiaries may be liable,
or has any material interest in any firm, person or entity with which the
Company or any of its Subsidiaries or VUG does business. From and after the
Effective Time the Company will not have any material obligations under (i) the
Share Purchase Agreement dated as of March 1, 1996 between the Company and the
Management Investors, (ii) the Venton Holdings Ltd. Amended and Restated
Stockholders Agreement dated as of April 4, 1996 or (iii) the Purchase Agreement
dated as of May 21, 1997 among The Trident Partnership, L.P., the Company and
Exel.

         Section 3.23. Material Contracts. (a) Neither the Company nor any of
its Subsidiaries is party to any agreement containing any provision or covenant
expressly limiting in any material respect the ability of the Company or any of
its Subsidiaries (or the Amalgamated Company) to compete and (b) neither the
Company nor any of its Subsidiaries is a party to or bound by any contract,
agreement or arrangement which would cause the rights or obligations of any
party thereto to change in the event of the Amalgamation, except in each case
for any such contract, agreement or arrangement which, individually or in the
aggregate, are not reasonably likely to have a Material Adverse Effect on the
Company.
<PAGE>   28
                                      -24-


                                  ARTICLE FOUR

                        REPRESENTATIONS AND WARRANTIES OF
                             PARENT AND ACQUISITION


                  Parent and Acquisition hereby represent and warrant to the
Company as follows (it being understood that representations and warranties with
respect to Subsidiaries of Parent relate to such Subsidiaries without giving
effect to the Amalgamation):

                  Section 4.01. Corporate Organization. Each of Parent and
Acquisition is a company duly incorporated, validly existing and in good
standing under the laws of its jurisdiction of incorporation. Acquisition is not
required to be authorized, qualified, licensed or domesticated as a foreign
corporation under any federal, state or local law in the United States. Parent
has furnished to the Company complete and correct copies of the charter and
bylaws, or the memorandum of association and bye-laws, as the case may be, of
each of Parent and Acquisition as in effect on the date hereof. Such documents
are in full force and effect and no other organizational documents are
applicable to or binding upon the Parent or Acquisition.

                  Section 4.02. Authority, Execution, Enforceability. Each of
Parent and Acquisition has all requisite corporate power and authority to enter
into this Agreement and to consummate the transactions contemplated hereby. The
execution and delivery of this Agreement by each of Parent and Acquisition, the
performance by Parent and Acquisition of their obligations hereunder and the
consummation by Parent and Acquisition of the transactions contemplated hereby
have been duly authorized by all necessary corporate action on the part of
Parent and Acquisition (including the approval by Parent, as sole shareholder of
Acquisition, and by the necessary vote of all members of their respective Boards
of Directors). This Agreement has been duly executed and delivered by Parent and
Acquisition and constitutes a legal, valid and binding obligation of Parent and
Acquisition, enforceable against Parent and Acquisition in accordance with its
terms, subject with respect to enforceability to the effect of bankruptcy,
insolvency, reorganization, moratorium or similar laws now or hereafter
affecting the enforcement of creditors' rights generally and to the availability
of equitable remedies.
<PAGE>   29
                                      -25-


         Section 4.03. No Conflicts. The execution, delivery and performance of
this Agreement and the consummation of the transactions contemplated hereby will
not (i) result in any violation of or be in conflict with or constitute a breach
or default (with or without notice or lapse of time or both) under the
memorandum of association, bye-laws or any other Instrument of Parent or
Acquisition, which violation, conflict, breach or default is reasonably likely
to have a Material Adverse Effect on Parent, or (ii) result in the creation of
any Lien other than Permitted Liens upon any of the material properties or
assets of Parent or Acquisition.

         Section 4.04. Consents. (a) Except for the filing of the application to
register the Amalgamation pursuant to the Companies Act and the consent of the
Minister to the Amalgamation, the Consent of Lloyd's to the Amalgamation and the
transactions contemplated by this Agreement, and the approval of the
Commissioner of Insurance for the State of New Hampshire, no Consent is required
on the part of Parent or Acquisition in connection with the transactions
contemplated by this Agreement, except where failure to obtain such Consent is
not reasonably likely to have a Material Adverse Effect on Parent.

         (b) Parent and Acquisition have reviewed the requirements for approval
of the Amalgamation and the transactions contemplated by this Agreement by
Lloyd's which appear in the section entitled "Acquiring Control of a Managing
Agent" in Guidance Notes for Applicants published by Lloyd's Regulatory Division
and hereby confirm that they can satisfy all requirements set forth therein
without the need for any waiver or any other form of relief, and they are not
aware of the need for any waiver or any other form of relief with respect to
Parent or Acquisition in order to satisfy any other requirements of Lloyd's.

         Section 4.05. Compliance with Applicable Law. Subject to obtaining the
Consents referred to in Section 4.04, the execution, delivery, and performance
of this Agreement and the taking of the other actions contemplated by this
Agreement to be performed by Parent and Acquisition prior to the date or dates
as of which the representations and warranties herein are made or deemed made,
will not result in any default or violation of any judgment, decree, order, law,
statute, rule or regulation of any Governmental Authority, except for such
defaults or violations as are not reasonably likely to have a Material Adverse
Effect on Parent.
<PAGE>   30
                                      -26-


         Section 4.06. Sufficient Funds and Assets. Parent and Acquisition have
sufficient liquid funds available to pay all cash amounts required to be paid
pursuant to this Agreement, and have sufficient funds and other assets available
to satisfy Sections 5.06 and 5.07.


                                  ARTICLE FIVE

                                    COVENANTS


         Section 5.01. Reasonable Best Efforts. Each of the Company, Parent and
Acquisition will use its reasonable best efforts to take, or cause to be taken,
all action and to do, or cause to be done, all things necessary, proper or
advisable to consummate and make effective the transactions contemplated by this
Agreement, as soon as practicable after the date hereof, and shall use its
reasonable best efforts to obtain all waivers, Permits, Consents and approvals
and to effect all registrations, filings and notices with or to third parties or
Governmental Authorities which are necessary or desirable in connection with the
transactions contemplated by this Agreement, and shall vote all Shares directly
or indirectly owned by it in favor of the Amalgamation.

         Section 5.02. Public Announcements. No party hereto shall issue any
press release or otherwise make any public statements with respect to the
Amalgamation or this Agreement without the prior written approval of the other
party (which shall not be unreasonably withheld) as to the wording, timing and
media for such press release or statement, except for any press release or
statement as may be required by law in the opinion of counsel for such party
which press release or statement shall not be made without prior consultation to
the extent practicable with the other party.

         Section 5.03. Supplemental Information. Except where prohibited by
applicable statutes and regulations, each party shall promptly provide the other
(or its counsel) with copies of all filings, material notices or material
communications made by such party with any Governmental Authority in connection
with this Agreement or the transactions contemplated hereby. No information
provided to a party pursuant to this Section 5.03 shall be deemed to cure any
breach of any representation of or warranty made in this Agreement unless the
party receiving such information specifically agrees thereto in writing.
<PAGE>   31
                                      -27-


         Section 5.04. Shareholders' Meeting. The Company shall cause the
Shareholders' Meeting to be duly called and will give notice of, convene and
hold such meeting as soon as practicable. In connection with the Shareholders'
Meeting, the Company shall cause any required information to be mailed to its
shareholders. The Board of Directors of the Company shall submit for approval
and adoption by its shareholders the matters to be voted upon at the
Shareholders' Meeting, and shall recommend that the shareholders vote in favor
of the approval of the provisions of this Agreement which are the terms and
means of effecting the Amalgamation and the Company shall use its best efforts
to secure such approval and adoption. Parent shall vote all proxies obtained by
Parent in favor of such approval.

         Section 5.05. Indemnification. (a) From and after the Effective Time,
the Amalgamated Company shall indemnify, defend and hold harmless the officers
and directors of the Company (the "Indemnified Parties") against all losses,
expenses, claims, damages and liabilities arising out of the transactions
contemplated by this Agreement to the fullest extent permitted or required under
applicable law (including, without limitation, reasonable attorneys' fees).
Subject to any limitations imposed by Bermuda law and public policy, to the
extent applicable, the Amalgamated Company agrees that all rights to
indemnification existing in favor of the directors and officers of the Company
or any Subsidiary of the Company as provided in the Company's or any such
Subsidiary's memorandum of association or existing indemnification agreements,
as in effect as of the date hereof, with respect to matters occurring through
the Effective Time, shall survive the Amalgamation and shall continue in full
force and effect, and the Amalgamated Company shall guaranty the obligations of
the Company in respect thereof; provided, however, that this shall not limit the
ability of Parent to effect any corporate restructuring of its Subsidiaries.

         (b) Parent shall cause to be maintained for a period of not less than
six years from the Effective Time the Company's current directors' and officers'
insurance and indemnification policy to the extent that it provides coverage for
events occurring prior to the Effective Time (the "D&O Insurance") for any of
the Indemnified Parties; provided, however, that Parent may, in lieu of
maintaining such existing D&O Insurance as provided above, cause comparable
coverage to be provided under any policy maintained for the benefit of the
directors and officers of Parent or any of its Subsidiaries, so long as (i) the
issuer thereof has an A.M. Best Company rating of A 
<PAGE>   32
                                      -28-


or better and (ii) the material terms thereof are no less advantageous to the
Indemnified Parties than the existing D&O Insurance. If the existing D&O
Insurance expires, is terminated or canceled during such six-year period, Parent
shall cause to be obtained, to the extent commercially available, replacement
D&O Insurance on terms and conditions no less advantageous to the Indemnified
Parties than the existing D&O Insurance.

         Section 5.06. Release of Capital Contribution Obligations. At and after
the Effective Time, the Company hereby releases all obligations (including any
obligations arising prior to the Effective Time) of the shareholders of the
Company under (i) the Fourth Amended and Restated Capital Contribution Agreement
dated as of December 29, 1997 between Tryco III and the Company, (ii) the
Amended and Restated Capital Contribution Agreement dated as of December 29,
1997 between Exel and the Company and (iii) the Second Amended and Restated
Capital Contribution Agreement dated as of December 29, 1997 between RCRe and
the Company.

         Section 5.07. Replacement of Obligation Owed to Lloyd's and Mellon
Bank. At or prior to the Effective Time, Parent shall (a) cause to be issued
(and deposited with Lloyd's) an irrevocable standby letter of credit (the
"Letter of Credit"), or cash, in the amount of U.S. $122,913,000 (or such
greater amount as shall then be required by Lloyd's), which in the case of a
Letter of Credit shall (i) have an effective date as of the Closing Date and
(ii) otherwise be satisfactory to Lloyd's, to support the underwriting
activities of VUL at Lloyd's and (b) deliver to Mellon Bank a guarantee
satisfactory to Mellon Bank of a U.S. $10,000,000 letter of credit issued by
Mellon Bank, London Branch, in favor of Citibank N.A. Trustee for Syndicate 376
Surplus Lines Trust Fund or a substitute for or replacement of such letter of
credit satisfactory to such Trustee.

         Section 5.08. Takeover Statutes. The parties shall use their reasonable
best efforts to exempt the transactions contemplated by this Agreement from, or
if necessary challenge the validity or applicability of, any applicable Takeover
Law, and otherwise act to eliminate or minimize the effects of any applicable
Takeover Law.

         Section 5.09. Conduct of Business of the Company. Except as expressly
contemplated by this Agreement or set forth in the Company Disclosure Letter or
as consented to in writing by Parent, during the period from the date of this
Agreement to the Effective Time, the Company and its Subsidiaries will, and 
<PAGE>   33
                                      -29-


will cause VUG and the Syndicates to, conduct their operations only in, and
neither the Company nor any of its Subsidiaries shall, or will permit VUG or the
Syndicates to, take any action except in, the ordinary and usual course of
business and consistent with past practice, and the Company and its Subsidiaries
will, and will cause VUG and the Syndicates to, use their reasonable best
efforts to preserve intact their business organization, to keep available the
services of their officers and employees and to maintain advantageous
relationships with customers, business partners and others having business
relationships with the Company, its Subsidiaries or VUG or the Syndicates, as
the case may be. Without limiting the generality of the foregoing, prior to the
Effective Time, neither the Company nor any of its Subsidiaries will, or will
permit VUG or the Syndicates to, except as expressly contemplated by this
Agreement or set forth in the Company Disclosure Letter, without the prior
written consent of Parent:

                  (a) split, combine or reclassify any shares, declare, pay or
         set aside for payment any dividend or other distribution payable in
         cash, shares, property or otherwise in respect of its shares, or
         directly or indirectly redeem, purchase or otherwise acquire any
         shares, or other securities;

                  (b) authorize for issuance, issue, sell, pledge, dispose of or
         encumber, deliver or agree or commit to issue, sell, pledge or deliver
         (whether through the issue or granting of any options, warrants,
         commitments, subscriptions, rights to purchase or otherwise) any shares
         of any class of the Company or any securities convertible into or
         exercisable or exchangeable for shares of any class of the Company, or
         amend any of the terms of any such securities or agreements outstanding
         as of the date hereof;

                  (c) (i) incur any debt for borrowed money, or assume,
         guarantee, endorse or otherwise become liable or responsible (whether
         directly, contingently or otherwise) for any debt for borrowed money of
         any other Person, in excess of $10,000,000, (ii) make any loans or
         advances to any Person other than loans or advances of reasonable
         out-of-pocket expenses incurred in connection with the business of the
         Company or its Subsidiaries, or make any capital contributions to, or
         investments in, any other Person, (iii) pledge or otherwise encumber
         shares of the Company or its Subsidiaries, or (iv) mortgage or pledge
         any of its material assets, tangible or intangible, or create any Lien
         thereupon other than Permitted Liens;
<PAGE>   34
                                      -30-


                  (d) except as may be required by law or as contemplated by
         this Agreement, enter into, adopt, or amend or terminate any bonus,
         profit sharing, compensation, severance, termination, stock option,
         share appreciation right, restricted shares, performance unit, share
         equivalent, share purchase agreement, pension, retirement, deferred
         compensation, employment, severance or other Employee Benefit Plan; or
         enter into or amend any employment or severance agreement with,
         increase in any manner the salary, wages, bonus, commission, or other
         compensation or benefits of any director or officer (at the level of
         Vice President or above) of the Company or any of its Subsidiaries; or
         increase in any manner the salary, wages, bonus, commission, or other
         compensation or benefits of any director, officer, employee or agent of
         the Company or any of its Subsidiaries, except for increases in the
         ordinary course of business and consistent with past practice (which,
         in the case of directors and officers at the level of Vice
         President/Managing Director or above, shall only be made after
         consultation with Parent); or hire employees at the level of Vice
         President/Managing Director or above except after consultation with
         Parent; or pay any benefit not required by any plan and arrangement as
         in effect as of the date hereof (including, without limitation, the
         granting of stock options, share appreciation rights or performance
         units);

                  (e) acquire (by merger, amalgamation, consolidation or
         acquisition of shares or assets) any corporation, partnership or other
         business organization or division thereof or make any material
         investment either by purchase of shares or securities, contributions to
         capital, property transfer, or acquisition (including by lease) of any
         material amount of properties or assets of any other individual or
         entity, except for the purchase of investment shares or securities in
         the ordinary course of business consistent with past practice and in
         compliance with the requirements of Governmental Authorities except for
         any non-compliance that, individually or in the aggregate, is not
         reasonably likely to have a Material Adverse Effect on the Company;

                  (f) propose to amend the memorandum of association or bye-laws
         or any similar document of the Company or any of its Subsidiaries;

                  (g) propose to adopt a plan of complete or partial liquidation
         or resolutions providing for the complete or 
<PAGE>   35
                                      -31-


         partial liquidation, dissolution, amalgamation, consolidation,
         restructuring, recapitalization or other reorganization of the Company
         or any of its Subsidiaries;

                  (h) sell (whether by amalgamation, consolidation or
         otherwise), lease, encumber, transfer, dispose of any material assets
         or waive any right of substantial value (including without limitation,
         rights of renewal) outside the ordinary course of business consistent
         with past practice, or enter into any material commitment or
         transaction outside the ordinary course of business consistent with
         past practice and in each case in compliance with the requirements of
         Governmental Authorities except for any non-compliance that,
         individually or in the aggregate, is not reasonably likely to have a
         Material Adverse Effect on the Company;

                  (i) except as may be required as a result of a change in law,
         rule or regulation or in GAAP, change any of the accounting principles
         or practices used by it;

                  (j) enter into any agreement providing for the acceleration or
         payment or performance or other consequence as a result of a change in
         control of the Company or any of its Subsidiaries;

                  (k) resolve, commit or agree to take any of the foregoing
         actions or take any action which would make any representation or
         warranty in Article THREE hereof materially untrue or incorrect; or

                  (l) pay, discharge or satisfy any claims, liabilities or
         obligations (absolute, accrued, contingent or otherwise) against the
         Company or any of its Subsidiaries except in the ordinary course of
         business consistent with past practice or where to do so is not
         reasonably likely to have a Material Adverse Effect on the Company.

The provisions of this Section 5.09 insofar as they apply to Syndicates are
subject to Lloyd's policy with respect to the management of syndicates.

         Section 5.10. Acquisition Proposals. Without the prior written consent
of Parent, the Company shall not, and shall cause its Subsidiaries and their
respective officers, directors, agents, advisors and affiliates not to, solicit
or encourage inquiries or proposals with respect to, or engage in any
negotiations concerning, or provide any confidential infor-
<PAGE>   36
                                      -32-


mation to, or have any discussions with, any such Person relating to, any tender
offer or exchange offer for, or any proposal for the acquisition of a
substantial equity interest in, or a substantial portion of the assets of, or
any amalgamation, merger or consolidation with, the Company or any of its
Subsidiaries and any such inquiries, proposals or discussions shall be
immediately terminated.

         Section 5.11. Information, etc. Between the date of this Agreement and
the Effective Time, the Company shall (and shall cause its Subsidiaries to)
afford to authorized representatives (including, without limitation, attorneys,
auditors, financial advisors and actuaries) of Parent reasonable access during
normal business hours to all of the Company's personnel, offices and other
facilities and to its books and records and will permit such party and its
authorized representatives to make such inspections of its financial and
operating data and other information with respect to its business and properties
as such party and its authorized representatives may from time to time
reasonably request. No information or knowledge obtained in any investigation
pursuant to this Section 5.11 shall affect or be deemed to modify any
representation or warranty contained in this Agreement or the conditions to the
obligations of the parties to consummate the Amalgamation. The confidentiality
of all such documents and information furnished in connection with the
transactions contemplated by this Agreement shall be governed by the terms of
the Confidentiality Letter dated June 9, 1998 from Parent to the Company (the
"Confidentiality Letter").

         Section 5.12. Lloyd's Auction. The Company and Parent shall consult in
good faith with respect to participation in the Lloyd's auction process and if
the Company participates therein it will keep Parent reasonably informed as to
the status and results thereof.


                                   ARTICLE SIX

                         CONDITIONS TO THE AMALGAMATION


         Section 6.01. Conditions to Each Party's Obligation to Effect the
Amalgamation. The respective obligations of each party to this Agreement to
consummate the Amalgamation shall be subject to the following conditions:
<PAGE>   37
                                      -33-


                  (a) This Agreement, the Amalgamation and the other
         transactions contemplated hereby shall have been approved and adopted
         by the affirmative vote or consent of the Company's shareholders as
         required by the Companies Act and the Company's bye-laws.

                  (b) No order, decree or injunction of any court or agency of
         competent jurisdiction shall be in effect, and no law, statute or
         regulation shall have been enacted or adopted, that enjoins, prohibits
         or makes illegal consummation of any of the transactions contemplated
         hereby; provided, however, that each of Parent and the Company shall
         have used its reasonable best efforts to prevent any such rule,
         regulation, injunction, decree or other order, and to appeal as
         promptly as possible any injunction, decree or other order that may be
         entered.

                  (c) Those regulatory and other approvals required to
         consummate the Amalgamation and the other transactions contemplated
         hereby that are specified in Sections 3.07 and 4.04 shall have been
         obtained.

         Section 6.02. Additional Conditions to the Company's Obligation to
Effect the Amalgamation. The obligation of the Company to consummate the
Amalgamation shall be further subject to the following conditions unless waived
in accordance with Section 8.02:

                  (a) Parent shall have performed in all material respects the
         obligations and covenants to be performed by it on or prior to the
         Effective Time except for any such failure or failures to perform,
         individually or in the aggregate, as are not reasonably likely to have
         a Material Adverse Effect on the Company.

                  (b) The representations and warranties of Parent contained in
         this Agreement that are qualified as to materiality shall be true and
         correct in all respects, and the representations and warranties of
         Parent contained in this Agreement that are not so qualified shall be
         true and correct in all material respects, in each case as of the date
         of this Agreement and (except to the extent such representations and
         warranties speak as of an earlier date and except for changes permitted
         by this Agreement) as of the Closing Date as though made as of and on
         the Closing Date, except for such failure or failures to be true and
         correct (or true and correct in all material respects), individu-
<PAGE>   38
                                      -34-


         ally or in the aggregate, as are not reasonably likely to have a
         Material Adverse Effect on Parent.

                  (c) There shall have been returned to the issuer thereof the
         irrevocable letters of credit totaling $122,913,000 issued by Mellon
         Bank, N.A., on behalf of Exel (which are currently on deposit with
         Lloyd's for the benefit of VUL).

                  (d) Exel shall have been released by Mellon Bank from Exel's
         obligations with respect to the $10,000,000 letter of credit issued by
         Mellon Bank in favor of Citibank N.A. Trustee for Syndicate 376 Surplus
         Lines Trust Fund.

                  (e) The Company shall receive customary closing documents in
         form and substance reasonably satisfactory to it, including a
         certificate of an executive officer of Parent certifying compliance
         with the conditions set forth in Sections 6.02(a) and (b).

         Section 6.03. Additional Conditions to Parent and Acquisition's
Obligation to Effect the Amalgamation. The obligation of the Parent and
Acquisition to consummate the Amalgamation shall be further subject to the
following conditions unless waived in accordance with Section 8.02:

                  (a) The Company shall have performed in all material respects
         the obligations and covenants to be performed by it on or prior to the
         Effective Time except for any such failure or failures to perform,
         individually or in the aggregate, as are not reasonably likely to have
         a Material Adverse Effect on the Company.

                  (b) The representations and warranties of the Company
         contained in this Agreement that are qualified as to materiality shall
         be true and correct in all respects, and the representations and
         warranties of the Company contained in this Agreement that are not so
         qualified shall be true and correct in all material respects, in each
         case as of the date of this Agreement and (except to the extent such
         representations and warranties speak as of an earlier date and except
         for changes permitted by this Agreement) as of the Closing Date, as
         though made as of and on the Closing Date, except for such failure or
         failures to be true and correct (or true and correct in all material
         respects), individually or in the aggregate, as are not rea-
<PAGE>   39
                                      -35-


         sonably likely to have a Material Adverse Effect on the Company.

                  (c) Parent shall receive customary closing documents in form
         and substance reasonably satisfactory to it, including a certificate of
         an executive officer of the Company certifying compliance with the
         conditions set forth in Sections 6.03(a) and (b).

                  (d) Holders of the outstanding capital stock of the Company
         and Company Options (which shall include Exel, RCRe and Tryco III and
         may include other such holders) shall have confirmed to Parent the
         representations and warranties set forth in Section 3.03(a), (b) and
         (c) provided that the liability of each such holder with respect to
         such representations and warranties shall be several and shall be
         allocated among such holders in the same proportion as the
         consideration to be received by each such holder pursuant to Sections
         2.05, 2.09 and 2.10 bears to the aggregate consideration to be received
         by all such holders and such representation shall survive until the
         first anniversary of the Effective Time.


                                  ARTICLE SEVEN

                           TERMINATION AND ABANDONMENT


         Section 7.01. Termination by the Company, Parent or Acquisition. This
Agreement may be terminated and the Amalgamation contemplated hereby may be
abandoned at any time prior to the Effective Time, whether before or after
approval of the Amalgamation by the shareholders of the Company or the
shareholders of Acquisition:

                  (a)  by mutual written consent of Parent and the Company;

                  (b) by the Company at any time after the later of (i) the
         earlier of (x) November 15, 1998 and (y) the date that is three months
         after the submission to Lloyd's of an application for the Consent of
         Lloyd's referred to in Section 4.04(a) and (ii) the date that is four
         weeks after the delivery to Parent of the Company Interim Financial
         Statements (or such later date as shall have been agreed to in writing
         by Parent and the Company) if any of the 
<PAGE>   40
                                      -36-


         conditions set forth in Section 6.01 or 6.02 hereof have not been met
         or waived in writing by the Company; or

                  (c) by Parent at any time after the later of (i) the earlier
         of (x) November 15, 1998 and (y) the date that is three months after
         the submission to Lloyd's of an application for the Consent of Lloyd's
         referred to in Section 4.04(a) and (ii) the date that is four weeks
         after the delivery to Parent of the Company Interim Financial
         Statements (or such later date as shall have been agreed to in writing
         by Parent and the Company) if any of the conditions set forth in
         Section 6.01 or 6.03 have not been met or waived in writing by Parent.

                  Any party that breaches this Agreement the result of which
breach is the failure of a condition specified in (b) or (c) of this Section
7.01 to be met by the date specified may not terminate this Agreement on the
basis of such failure.

                  Section 7.02. Effect of Termination. (a) No termination hereof
shall relieve any party from liability for any prior breach of this Agreement.
The parties hereto agree that irreparable damage would occur to a party in the
event any provision of this Agreement was not performed by the other party in
accordance with the terms hereof, or was breached by such other party, and that
the parties shall be entitled to specific performance of the terms hereof,
(which, in the case of such non-performance or breach by Parent or Acquisition
shall mean, in consideration for all of the ownership interests in the Company,
payment of all amounts on or with respect to the securities of the Company to
its securityholders as set forth in Sections 2.05, 2.09 and 2.10, the assumption
of the obligations referred to in Section 5.06, and the delivery of the Letter
of Credit (or cash) and guarantee referred to in Section 5.07 to Lloyd's and
Mellon Bank, respectively) in addition to any other remedy at law or equity
(including without limitation the payment of all expenses incurred by the
Company referred to in Section 8.04). The parties acknowledge that "time is of
the essence."

                  (b) Sections 5.02 (Public Announcements), 8.04 (Expenses) and
8.07 (Governing Law) shall survive any termination and remain in full force and
effect notwithstanding any termination.
<PAGE>   41
                                      -37-


                                  ARTICLE EIGHT

                            MISCELLANEOUS PROVISIONS


                  Section 8.01. Amendment and Modification. Subject to
applicable law, this Agreement may be amended, modified or supplemented only by
written agreement signed on behalf of each of the parties hereto at any time
prior to the Effective Time with respect to any of the terms contained herein
except that after the Shareholders' Meeting, the Amalgamation Consideration to
be paid pursuant to this Agreement to the holders of Shares shall in no event be
decreased and the form of consideration to be received by the holders of such
Shares in the Amalgamation shall in no event be altered without the approval of
such holders.

                  Section 8.02. Waiver of Compliance; Consents. Any failure of
Parent or Acquisition, on the one hand, or the Company, on the other hand, to
comply with any obligation, covenant, agreement or condition herein may be
waived in writing by the Company or Parent, respectively, but such waiver or
failure to insist upon strict compliance with such obligation, covenant,
agreement or condition shall not operate as a waiver of, or estoppel with
respect to, any subsequent or other failure. Whenever this Agreement requires or
permits consent by or on behalf of any party hereto, such consent shall be given
in a manner consistent with the requirements for a waiver of compliance as set
forth in this Section 8.02.

                  Section 8.03. Severability and Validity. The provisions set
forth in this Agreement are severable. If any provision of this Agreement is
held invalid or unenforceable in any jurisdiction, the remainder of this
Agreement, and the application of such provision to other Persons or
circumstances, shall not be affected thereby and shall remain valid and
enforceable in such jurisdiction, and any such invalidity or unenforceability in
any jurisdiction shall not invalidate or render unenforceable such provision in
any other jurisdiction.

                  Section 8.04. Expenses and Obligations. Each of the parties
hereto shall pay its own expenses incurred in connection with the negotiation
and preparation of this Agreement, the performance of the covenants herein, and
the effectuation of the transactions contemplated hereby, including all fees and
disbursements of its respective legal counsel, advisors, and accountants.
<PAGE>   42
                                      -38-


                  Section 8.05. Parties in Interest. This Agreement shall be
binding upon and inure solely to the benefit of each party hereto, and nothing
in this Agreement, express or implied, is intended to confer upon any other
Person any rights or remedies of any nature whatsoever under or by reason of
this Agreement except as specifically set forth in Sections 5.06 and 7.02.

                  Section 8.06. Notices. All notices and other communications
hereunder shall be in writing and shall be deemed given if delivered personally
or mailed by registered or certified mail (return receipt requested) to the
parties at the following addresses (or at such other address for a party as
shall be specified by like notice):

                    (i)    if to Parent or Acquisition, to:

                           Underwriters Reinsurance Company
                           26050 Mureau Road
                           Calabasas, California  91302
                           Telephone:  (818) 878-9500
                           Facsimile:  (818) 878-9817
                           Attention:  Steven H. Newman

                           with a copy to:

                           Dewey Ballantine LLP
                           1301 Avenue of the Americas
                           New York, New York  10019
                           Telephone:  (212) 259-6570
                           Facsimile:  (212) 259-6333
                           Attention:  Linda E. Ransom, Esq.

                           and to:

                           Alleghany Corporation
                           375 Park Avenue
                           New York, New York  10152
                           Telephone:  (212) 752-1356
                           Facsimile:  (212) 759-3295
                           Attention:  Robert M. Hart, Esq.
<PAGE>   43
                                      -39-


                   (ii)    if to the Company, to:

                           Venton Holdings Ltd.
                           Victoria Hall
                           11 Victoria Street
                           Hamilton HM11, Bermuda
                           Telephone:  (441) 292-8370
                           Facsimile:  (441) 292-6313
                           Attention:  Andrew Carr

                           with a copy to:

                           Venton Underwriting Agencies Limited
                           Gracechurch House
                           55 Gracechurch Street
                           London EC3V OJP
                           Telephone:  (171) 550-3500
                           Facsimile:  (171) 550-3555
                           Attention:  D. Martin Slade

                           and to:

                           Cahill Gordon & Reindel
                           80 Pine Street
                           New York, New York  10005
                           Telephone:  (212) 701-3000
                           Facsimile:  (212) 269-5420
                           Attention:  Immanuel Kohn, Esq.

                           and to:

                           Conyers, Dill & Pearman
                           Claredon House
                           2 Church Street
                           Hamilton HM CX, Bermuda
                           Telephone:  (441) 295-1422
                           Facsimile:  (441) 292-4720
                           Attention:  Graham Collis, Esq.

                  Section 8.07. Governing Law. (a) The Agreement shall be
governed by and construed in accordance with the laws of the State of New York
without regard to the conflicts of laws rules thereof, except that provisions
relating to the Amalgamation shall be governed by the laws of Bermuda, and
provisions relating to the validity of corporate action shall be governed by the
laws of the jurisdiction of incorporation or organization of the relevant
corporation.
<PAGE>   44
                                      -40-


                  (b) In addition, each of the parties hereto (i) consents to
submit itself to the personal jurisdiction of New York state court or the
federal courts of the Southern District of New York or the courts of Bermuda in
the event any dispute arises out of this Agreement or any of the transactions
contemplated by this Agreement, (ii) agrees that it will not attempt to deny or
defeat such personal jurisdiction by motion or other request for leave from any
such court and (iii) agrees that it will not bring any action relating to this
Agreement or any of the transactions contemplated hereby in any court other than
a federal or state court sitting in the State of New York (or, in the case of a
claim arising solely out of the Amalgamation, the courts of Bermuda). Each of
Parent and Acquisition hereby irrevocably designates The Corporation Trust
Company in New York and the Company hereby irrevocably designates The
Corporation Trust Company in New York and Conyers Dill and Pearman in Bermuda,
as their respective authorized agents, to accept and acknowledge on its behalf
service of any process which may be served in any suit, action or proceeding in
New York or Bermuda. Each of Parent and Acquisition and the Company hereby
irrevocably (i) consents and agrees to process being served in any suit, action
or proceeding brought in the federal court located in the State of New York or
any New York state court or any court in Bermuda by serving a copy thereof upon
the agent designated in the preceding sentence and to them and their respective
counsel at the addresses set forth in Section 8.06, and (ii) agrees that such
service of process shall be deemed in every respect effective service of process
upon it in any such suit, action or proceeding and shall, to the fullest extent
permitted by law, be taken and be held to be valid personal service upon and
personal delivery to Parent and Acquisition or the Company, as the case may be.

                  Section 8.08. Counterparts. This Agreement may be executed in
two or more counterparts, each of which shall be deemed an original, but all of
which together shall constitute one and the same agreement.

                  Section 8.09. Headings. The article and section headings
contained in this Agreement are solely for the purpose of reference, are not
part of the agreement of the parties and shall not affect in any way the meaning
or interpretation of this Agreement.

                  Section 8.10. Entire Agreement; Assignment. This Agreement,
including the Company Disclosure Letter, and the Confidentiality Letter, embody
the entire agreement and understanding of the parties hereto in respect of the
subject matter 
<PAGE>   45
                                      -41-


contained herein. There are no agreements, restrictions, promises,
representations, warranties, covenants, or undertakings, other than those
expressly set forth or referred to herein. This Agreement supersedes all prior
agreements and understandings with respect to such subject matter. This
Agreement shall not be assigned by operation of law or otherwise, except with
the prior written consent of each other party hereto. This Agreement is not
intended to confer upon any other Person except the parties hereto any rights or
remedies hereunder, except as provided in Section 8.05 of this Agreement.
<PAGE>   46
                  IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be signed on its behalf, all as of the day and year first above
written.


                                     UNDERWRITERS REINSURANCE COMPANY


                                     By:          /s/ Russell T. John           
                                        ----------------------------------------
                                             Name:  Russell T. John
                                             Title: President


                                     By:          /s/ Stuart M. de Haaff        
                                        ----------------------------------------
                                             Name:  Stuart M. de Haaff
                                             Title: Secretary


                                     UNDERWRITERS ACQUISITION COMPANY LTD.



                                     By:          /s/ Stephen C. Kolakowski
                                        ----------------------------------------
                                             Name:  Stephen C. Kolakowski
                                             Title: President


                                     By:          /s/ Stuart M. de Haaff        
                                        ----------------------------------------
                                             Name:  Stuart M. de Haaff
                                             Title: Assistant Secretary


                                     VENTON HOLDINGS LTD.


                                     By:          /s/ J.H. Venton               
                                        ----------------------------------------
                                             Name:  J.H. Venton
                                             Title: Director


                                     By:          /s/ D.M. Slade                
                                        ----------------------------------------
                                             Name:  D.M. Slade
                                             Title: Director

<PAGE>   1
                                                                EXHIBIT 10.28(b)

                                LIST OF EXHIBITS
                                     TO THE
                             AMALGAMATION AGREEMENT


       EXHIBIT NUMBER     DESCRIPTION
       --------------     -----------
            3.01          Corporate Organization
            3.02          Authority, Execution, Enforceability
            3.03          Capital Structure
            3.04          Financial Statements
            3.05          Absence of Certain Changes
            3.06          No Conflicts
            3.07          Governmental Conflicts
            3.08          Compliance with Applicable Law
            3.09          Tax Matters
            3.10          Litigation
            3.11          Employees
            3.12          Takeover Statutes
            3.13          Certain Fees
            3.14          Investment Company
            3.18          Letters of Credit
            3.22          Interests of Officers, Directors and Shareholders
            5.09          Conduct of Business of the Company

<PAGE>   1
                                                                Exhibit 10.28(c)


                               AMENDMENT NO. 1 TO

                       AGREEMENT AND PLAN OF AMALGAMATION

         This Amendment No. 1, dated as of September 24, 1998 (the "Amendment"),
to the Agreement and Plan of Amalgamation, dated as of July 30, 1998 (the
"Agreement"), is made by and among UNDERWRITERS REINSURANCE COMPANY, a New
Hampshire insurance company ("Parent"), UNDERWRITERS ACQUISITION COMPANY LTD., a
Bermuda company and a Subsidiary of Parent ("Acquisition") and VENTON HOLDINGS
LTD., a Bermuda company (the "Company").

         WHEREAS, the parties hereto desire to amend the Agreement.

         NOW, THEREFORE, in consideration of the promises and of the mutual
covenants, representations, warranties and agreements herein contained, the
parties hereto agree as follows:

         1. Section 2.05(a) of the Agreement is hereby amended to read in its
entirety as follows:

         Section 2.05. Consideration. (a) Except as otherwise provided in
         Section 106 of the Companies Act, at the Effective Time, each Share
         that is issued and outstanding immediately prior to the Effective Time
         shall be canceled, and the holder thereof shall be entitled to receive,
         pursuant to the procedures set forth in Section 2.06, $3,081.69 (except
         as provided in clause (v)) per Share, without interest thereon, with
         such consideration to consist of: (i) for each Class A Share $1,678.94
         in cash and the cancellation of $1,402.75 in capital contribution
         obligations; (ii) for each Class B Share held by Exel $1,679.11 in cash
         and the cancellation of $1,402.58 in capital contribution obligations;
         (iii) for each Class B Share held by RCRe $1,673.42 in cash and the
         cancellation of $1,408.27 in capital contribution obligations; (iv) for
         each Class C Share (other than the 996 Class C Shares held by Alec
         Sharp on which no amount has been paid (the "Unpaid Class C Shares"))
         $3,081.69 in cash; and (v) for each Unpaid Class C Share $1,832.06 in
         cash; provided, however, that those Shares held by those persons set
         forth on Schedule 2.05 hereto shall be canceled and the holders thereof
         shall be entitled to receive, instead of cash, that number of shares of
         common stock, par value $1.00 per share, of Alleghany Corporation
         ("Alleghany Common Stock") determined by (i) multiplying the number of
         Shares listed by the per Share consideration of $3,081.69, and 
<PAGE>   2
         (ii) dividing that result by the Alleghany Share Value. For purposes of
         this Agreement, the "Alleghany Share Value" shall be the average of the
         high and low sales prices of the Alleghany Common Stock on each of the
         ten trading days ending on September 30, 1998 divided by ten.

         2. Section 2.09 of the Agreement is hereby amended to read in its
entirety as follows:

         Section 2.09. Cash-Out or Exchange of Warrants. At the Effective Time,
         by virtue of the Amalgamation and without any action on the part of any
         holder thereof, the Company shall pay (with the proceeds of the capital
         contribution required by the last sentence of this Section 2.09) for
         each Warrant listed on Schedule 2.09 hereto, to the holder thereof, an
         amount in cash equal to the difference between (a) the consideration
         per Class A Share, Class B Share or Class C Share specified in Section
         2.05(a) multiplied by the number of Class A Shares, Class B Shares or
         Class C Shares subject to such Warrant and (b) the exercise price of
         such Warrant. Upon such payment therefor, such Warrant will no longer
         be outstanding, and neither the Company nor any other Person shall have
         any obligation with respect thereto. Immediately after the Effective
         Time, each other Warrant that is outstanding immediately prior to the
         Effective Time will be exchanged for an option to acquire shares of
         Alleghany Common Stock (an "Alleghany Option") in accordance with
         Section 2.11. At the Effective Time, Parent shall make a capital
         contribution to the Company in an amount equal to $11,450,375, which
         the parties hereto agree is sufficient to make all cash payments
         pursuant to the first sentence of this Section 2.09.

         3. Section 2.10 of the Agreement is hereby amended to read in its
entirety as follows:

         Section 2.10. Cash-Out or Exchange of Options. At the Effective Time,
         by virtue of the Amalgamation and without any action on the part of any
         holder thereof, the Company shall pay (with the proceeds of the capital
         contribution required by the last sentence of this Section 2.10), for
         each Option listed on Schedule 2.10 hereto, to the holder thereof, an
         amount in cash equal to the difference between (a) the consideration
         per Class C Share specified in Section 2.05(a) multiplied by the number
         of Class C Shares subject to such Option (or by the number of Class C
         Shares subject to the Class C Warrant subject to such Option) and (b)
         the 


                                      -2-
<PAGE>   3
         exercise price of such Option. Upon such payment therefor, such Option
         will no longer be outstanding, and neither the Company nor any other
         Person shall have any obligation with respect thereto. Immediately
         after the Effective Time, each other Option that is outstanding
         immediately prior to the Effective Time will be exchanged for an
         Alleghany Option in accordance with Section 2.11. At the Effective
         Time, Parent shall make a capital contribution to the Company in an
         amount equal to $1,985,953, which the parties hereto agree is
         sufficient to make all cash payments pursuant to the first sentence of
         this Section 2.10.

         4. A new Section 2.11 is hereby added to the Agreement, which reads in
its entirety as follows:

         Section 2.11. Alleghany Options. The number of shares of Alleghany
         Common Stock issuable upon exercise of an Alleghany Option received by
         a holder of Warrants or Options in accordance with Sections 2.09 or
         2.10 will be determined by (i) multiplying the number of Shares
         issuable upon exercise of such Warrant or Option by the per Share
         consideration of $3,081.69, and (ii) dividing that result by the
         Alleghany Share Value. Any fractional share of Alleghany Common Stock
         to which a recipient would be entitled upon exercise of the Alleghany
         Option will be paid in cash. The per share exercise price of the
         Alleghany Option will be determined by (i) multiplying the number of
         Shares issuable upon exercise of a Warrant or Option by the per Share
         exercise price of such Warrant or Option, and (ii) dividing that result
         by the number of shares of Alleghany Common Stock issuable upon
         exercise of the Alleghany Option as determined in the first sentence of
         this Section 2.11.


                                      -3-
<PAGE>   4
         IN WITNESS WHEREOF, each party hereto has caused this Agreement to be
signed on its behalf, all as of the day and year first above written.


                                   UNDERWRITERS REINSURANCE COMPANY


                                   By:             /s/ Russell T. John          
                                      ------------------------------------------
                                         Name:     Russell T. John
                                         Title:    President


                                   By:             /s/ Stuart M. de Haaff       
                                      ------------------------------------------
                                         Name:     Stuart M. de Haaff
                                         Title:    Secretary


                                   UNDERWRITERS ACQUISITION COMPANY LTD.


                                   By:             /s/ Stephen C. Kolakowski    
                                      ------------------------------------------
                                         Name:     Stephen C. Kolakowski
                                         Title:    President


                                   By:             /s/ Stuart M. de Haaff       
                                      ------------------------------------------
                                         Name:     Stuart M. de Haaff
                                         Title:    Assistant Secretary


                                   VENTON HOLDINGS LTD.


                                   By:             /s/ J.H. Venton              
                                      ------------------------------------------
                                         Name:     J.H. Venton
                                         Title:    Director


                                   By:             /s/ D.M. Slade               
                                      ------------------------------------------
                                         Name:     D.M. Slade
                                         Title:    Director

<PAGE>   1
                                                                EXHIBIT 10.28(d)


                                LIST OF EXHIBITS
                                       TO
                          AMALGAMATION AMENDMENT NO. 1


EXHIBIT NUMBER                        DESCRIPTION

     2.05        Venton shareholders to receive consideration in Alleghany
                 common stock

     2.09        Venton warrant holders to receive consideration in cash

     2.10        Venton option holders to receive consideration in cash

<PAGE>   1
                                                                Exhibit 10.29(a)

              LETTER OF CREDIT FACILITY AND REIMBURSEMENT AGREEMENT

                                     BETWEEN

          VENTON UNDERWRITING LIMITED and TALBOT UNDERWRITING LIMITED,

                               as Account Parties,

                                       AND

        UNDERWRITERS RE GROUP, INC. and UNDERWRITERS REINSURANCE COMPANY,

                                 as Guarantors,

                                       AND

                   THE BANKS PARTIES HERETO FROM TIME TO TIME

                                       AND

                               MELLON BANK, N.A.,

           as Issuing Bank, as Administrative Agent and as Co-Arranger

                                       AND

                  DRESDNER KLEINWORT BENSON NORTH AMERICA LLC,

                                 as Co-Arranger

                                       AND

              DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES

                             as Documentation Agent



                                   DATED AS OF

                                October 23, 1998
<PAGE>   2
                                Table of Contents

<TABLE>
<CAPTION>
Section          Title                                                                      Page
<S>                                                                                         <C>
ARTICLE I        DEFINITIONS; CONSTRUCTION................................................     1

1.01             Certain Definitions......................................................     1
1.02             Construction.............................................................    13
1.03             Accounting Principles....................................................    13

ARTICLE II       THE LETTER OF CREDIT FACILITY............................................    13

2.01             Letters of Credit .......................................................    13
2.02             Commitment Fee; Reduction of the Committed Amounts.......................    15
2.03             Procedure for Issuance and Amendment of Letters of Credit................    15
2.04             Letter of Credit Participating Interests.................................    16
2.05             Letter of Credit Drawings and Reimbursements.............................    17
2.06             Equalization.............................................................    18
2.07             Obligations Absolute.....................................................    18
2.08             Unacceptable Credit Rating...............................................    19
2.09             Letter of Credit Applications............................................    19
2.10             Certain Provisions Relating to the Issuing Bank..........................    19
2.11             Payments Generally; Interest and Interest on Overdue
                 Amounts..................................................................    21
2.12             Additional Compensation in Certain Circumstances.........................    21
2.13             Taxes....................................................................    22
2.14             Extensions of Expiration Date............................................    24
2.15             Tranches.................................................................    25

ARTICLE III      REPRESENTATIONS AND WARRANTIES...........................................    27

3.01             Corporate Existence and Standing.........................................    28
3.02             Authorization and Validity...............................................    28
3.03             Compliance with Laws and Contracts.......................................    28
3.04             Governmental Consents....................................................    28
3.05             Financial Statements.....................................................    28
3.06             Material Adverse Change..................................................    29
3.07             Taxes....................................................................    29
3.08             Litigation...............................................................    29
3.09             Insurance Licenses.......................................................    29
3.10             Use of Proceeds..........................................................    29
3.11             Permits, Licenses and Rights.............................................    29
3.12             Disclosure...............................................................    30
3.13             Environmental Laws.......................................................    30
3.14             Reserves.................................................................    30
3.15             Year 2000 Compliance.....................................................    31
3.16             Capitalization...........................................................    31
3.17             ERISA....................................................................    31
3.18             Defaults.................................................................    32
3.19             Federal Reserve Regulations..............................................    32
3.20             Investment Company; Public Utility Holding Company Act...................    32
3.21             Certain Fees.............................................................    32
3.22             Solvency.................................................................    32
</TABLE>
<PAGE>   3
<TABLE>
<S>                                                                                           <C>
3.23             Ownership of Properties..................................................    32
3.24             Indebtedness.............................................................    33
3.25             Material Agreements......................................................    33
3.26             Insurance................................................................    33

ARTICLE IV       CONDITIONS...............................................................    33

4.01             Effectiveness............................................................    33
4.02             Issuance of Letters of Credit............................................    34

ARTICLE V        GUARANTEE................................................................    35

5.01             The Guarantee............................................................    35
5.02             Obligations Unconditional................................................    35
5.03             Reinstatement............................................................    36
5.04             Remedies.................................................................    36
5.05             Continuing Guarantee.....................................................    36
5.06             No Restrictions..........................................................    37

ARTICLE VI       COVENANTS................................................................    37

6.01             Financial Reporting......................................................    37
6.02             Use of Proceeds..........................................................    39
6.03             Notice of Default .......................................................    39
6.04             Conduct of Business......................................................    39
6.05             Taxes....................................................................    40
6.06             Insurance................................................................    40
6.07             Compliance with Laws.....................................................    40
6.08             Maintenance of Properties; Year 2000 Compliance..........................    40
6.09             Inspection...............................................................    41
6.10             Capital Stock and Dividends..............................................    41
6.11             Indebtedness.............................................................    41
6.12             Merger...................................................................    41
6.13             Sale of Assets...........................................................    42
6.14             Investments and Purchases................................................    42
6.15             Contingent Obligations...................................................    43
6.16             Liens....................................................................    44
6.17             Affiliates...............................................................    44
6.18             Other Indebtedness.......................................................    45
6.19             Environmental Matters....................................................    45
6.20             Change in Corporate Structure; Fiscal Year...............................    45
6.21             Inconsistent Agreements..................................................    45
6.22             Financial Covenants......................................................    45
6.23             Tax Consolidation........................................................    45
6.24             ERISA Compliance.........................................................    46

ARTICLE VII      EVENTS OF DEFAULT........................................................    46

7.01             Events of Default........................................................    46
7.02             Certain Actions in Respect of Letters of Credit upon Default.............    49

ARTICLE VIII     THE AGENT................................................................    49

8.01             Appointment..............................................................    49
</TABLE>
<PAGE>   4
<TABLE>
<S>                                                                                           <C>
8.02             General Nature of Agent's Duties.........................................    50
8.03             Exercise of Powers.......................................................    50
8.04             General Exculpatory Provisions...........................................    50
8.05             Administration by the Agent..............................................    51
8.06             Bank Not Relying on Agent or Other Banks.................................    52
8.07             Indemnification..........................................................    52
8.08             Agent in its Individual Capacity.........................................    52
8.09             Successor Agent..........................................................    53
8.10             Additional Agents........................................................    53
8.11             Calculations.............................................................    53
8.12             Agent's Fee..............................................................    53

ARTICLE IX       MISCELLANEOUS............................................................    53

9.01             No Implied Waiver etc....................................................    53
9.02             Set-Off..................................................................    54
9.03             Survival of Provisions...................................................    54
9.04             Expenses and Fees; Indemnity.............................................    54
9.05             Severability.............................................................    55
9.06             Holidays.................................................................    55
9.07             Notices, etc.............................................................    55
9.08             Forum Selection and Consent to Jurisdiction..............................    55
9.09             Waiver of Jury Trial.....................................................    56
9.10             Governing Law............................................................    56
9.11             Validity and Enforceability..............................................    56
9.12             Counterparts.............................................................    56
9.13             Successors and Assigns; Participations; Assignments......................    56
9.14             Amendments and Waivers...................................................    58
9.15             Judgment Currency........................................................    59
9.16             Records..................................................................    59
9.17             Confidentiality..........................................................    60
9.18             Sharing of Collections...................................................    60
9.19             Co-Arrangers.............................................................    60
</TABLE>

Exhibit A         Form of Continuing Letter of Credit Agreement
Exhibit B         Form of Transfer Supplement
Exhibit C         Form of Opinions of Counsel
Exhibit D         Form of Compliance Certificate
Exhibit E         List of Existing Letters of Credit
Exhibit F         Letter of Credit Application

Schedule 2.01(b)           Form of Evergreen Provision
Schedule 3.03              Approvals and Consents
Schedule 3.04              Governmental Consents
Schedule 3.05              Financial Statements
Schedule 3.07              Taxes
Schedule 3.09              Insurance Licenses
Schedule 3.13              Environmental Laws
Schedule 3.16              Capitalization
Schedule 3.17              ERISA
Schedule 3.23              Ownership of Properties
Schedule 3.24              Indebtedness
Schedule 6.14              Investments
Schedule 6.16              Liens
<PAGE>   5
         LETTER OF CREDIT FACILITY AND REIMBURSEMENT AGREEMENT, dated as of
October 23, 1998, by and between VENTON UNDERWRITING LIMITED, a Bermuda exempted
limited liability company, and TALBOT UNDERWRITING LIMITED, an English company
(each sometimes referred to hereinafter individually as an "Account Party" and
collectively as the "Account Parties"), UNDERWRITERS RE GROUP, INC., a Delaware
corporation ("URGI"), UNDERWRITERS REINSURANCE COMPANY, a New Hampshire
corporation ("URC", URGI and URC being sometimes referred to herein individually
as "Guarantor" and collectively as the "Guarantors"), the Banks (as defined
further below) parties hereto from time to time, MELLON BANK, N.A., a national
banking association ("Mellon"), as Issuing Bank (the "Issuing Bank"), as
Administrative Agent for the Banks and the Issuing Bank hereunder (in such
capacity, together with successors in such capacity referred to individually as
the "Administrative Agent" and collectively with Dresdner Bank as the "Agents"),
and as a Co-Arranger, DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES,
branches of a German banking corporation ("Dresdner Bank"), as Documentation
Agent (referred to individually as the "Documentation Agent" and collectively
with Mellon as the "Agents") and DRESDNER KLEINWORT BENSON NORTH AMERICA LLC, a
Delaware Limited Liability company, as Co-Arranger.



                              PRELIMINARY STATEMENT



         WHEREAS, the Banks have agreed to make available to the Account Parties
a Letter of Credit Facility upon all of the terms and conditions herein set
forth;

         NOW, THEREFORE, in consideration of their mutual agreements hereinafter
set forth and intending to be legally bound hereby, the Account Parties, the
Guarantors, the Agents, the Issuing Bank, the Co-Arrangers and each Bank agree
as follows.



                                    ARTICLE I

                            DEFINITIONS; CONSTRUCTION


         1.01. Certain Definitions. In addition to other words and terms defined
elsewhere in this Agreement, as used herein the following words and terms shall
have the following meanings, respectively, unless the context hereof otherwise
clearly requires:

         "Account Parties" and "Account Party" shall mean Venton Underwriting
Limited and Talbot Underwriting Limited, together with their respective
successors as permitted by this Agreement.

         "Adjusted Leverage Ratio" means, with respect to URGI on a consolidated
basis with its Subsidiaries, at any time, the ratio of (a) Indebtedness (other
than Indebtedness on account of undrawn amounts of letters of credit provided to
beneficiaries in the ordinary course of business) to (b) the sum of Indebtedness
(other than Indebtedness on account of undrawn amounts of letters of credit
provided to beneficiaries in the ordinary course of business) plus Net Worth.
For the purpose of determining this ratio, Contingent Obligations shall be
excluded from Indebtedness to the extent that they relate to underlying
obligations which are included in Indebtedness with respect to URGI on a
consolidated basis with its Subsidiaries.
<PAGE>   6
         "Affiliate" of any Person means any other Person directly or indirectly
controlling, controlled by or under common control with such Person. For the
purposes of this Agreement, a Person shall be deemed to control another Person
if the controlling Person owns 10% or more of any class of voting securities (or
other ownership interests) of the controlled Person or possesses, directly or
indirectly, the power to direct or cause the direction of the management or
policies of the controlled Person, whether through ownership of stock, by
contract or otherwise.

         "Aggregate Letter of Credit Undrawn Availability" at any time shall
mean the aggregate amount of the Letter of Credit Undrawn Availability for all
Letters of Credit at such time.

         "Aggregate Letter of Credit Unreimbursed Draws" at any time shall mean
the aggregate amount of Letter of Credit Unreimbursed Draws for all Letters of
Credit at such time.

         "Agreement" shall mean this Agreement as amended, modified or
supplemented from time to time.

         "Agreement Accounting Principles" means generally accepted accounting
principles as in effect in the United States from time to time, applied in a
manner consistent with those used in preparing the financial statements referred
to in Section 6.01(a) and (b), provided, that with respect to the financial
covenants contained in Section 6.22 hereof, the related definitions and the
computations required thereby, such term means generally accepted accounting
principles (except where SAP is applicable) in effect in the United States on
the date hereof applied in a manner consistent with those used in preparing the
financial statements referred to in Section 6.01(a) and (b).

         "Alleghany" means Alleghany Corporation, a Delaware corporation.

         "Annual Statement" means the annual statutory financial statement of
any Insurance Subsidiary required to be filed with the insurance commissioner
(or similar authority) of its jurisdiction of incorporation, which statement
shall be in the form required by such Insurance Subsidiary's jurisdiction of
incorporation or, if no specific form is so required, in the form of financial
statements permitted by such insurance commissioner (or such similar authority)
to be used for filing annual statutory financial statements and shall contain
the type of information permitted by such insurance commissioner (or such
similar authority) to be disclosed therein, together with all exhibits or
schedules filed therewith.

         "Annual Statement-1997" means the Annual Statement of URC for 1997.

         "Applicable Interest Rate" as used herein, (i) with respect to
obligations denominated in Dollars, shall mean the Prime Rate and (ii) with
respect to obligations denominated in Pounds, shall mean 0.5% per annum in
excess of the seven-day rate appearing on the Telerate Screen page 3750 or any
equivalent successor to such page or other page as appropriate on the Telerate
Service or such other service as may, from time to time, display the British
Bankers' Association Interest Settlement Rate for deposits in Pounds.

         "Bank Parties" shall mean the Banks, the Issuing Bank and the Agents.

         "Banks" shall mean the parties listed on the signature pages hereof,
subject to the provisions of Section 9.13 hereof pertaining to Persons becoming
or ceasing to be Banks, and Bank shall mean any of them.

         "Business Day" shall mean any day other than a Saturday, Sunday, public
holiday under the laws of the Commonwealth of Pennsylvania or other day on which
banking institutions are authorized or obligated to close in Pittsburgh,
Pennsylvania or London, England.


                                      -5-
<PAGE>   7
         "Capitalized Lease" of a Person means any lease of Property by such
Person as lessee which would be capitalized on a balance sheet of such Person
prepared in accordance with Agreement Accounting Principles.

         "Capitalized Lease Obligations" of a Person means the amount of the
obligations of such Person under Capitalized Leases which would be shown as a
liability on a balance sheet of such Person prepared in accordance with
Agreement Accounting Principles.

         "Cash Equivalents" means Investments maturing within one year from the
date of investment (excluding (x) Investments as to which the principal amount
to be repaid may be subject to fluctuation and (y) mortgage backed securities
consisting of principal only or interest only strips) in (a) certificates of
deposit, Eurodollar time deposits and other interest bearing deposits or
accounts with United States commercial banks having a combined capital and
surplus of at least $500,000,000 and rated C or better by Thomson BankWatch or
with any Bank, (b) certificates of deposit, other interest bearing accounts or
deposits and demand deposits with other United States commercial banks, which
deposits and accounts are in amounts fully insured by the Federal Deposit
Insurance Corporation, (c) obligations issued or unconditionally guaranteed by
the United States government or issued by an agency thereof and backed by the
full faith and credit of the United States, (d) direct obligations issued by any
state of the United States or any political subdivision thereof which have the
highest rating obtainable from Standard & Poor's on the date of investment, (e)
commercial paper rated A-1 or better by Standard & Poor's and P-1 or better by
Moody's or (f) money market mutual funds identified by the valuation office of
the NAIC as requiring no investment reserve.

         "Change in Control" shall mean (a) any Credit Party (other than URGI)
shall cease to be a Wholly-Owned Subsidiary of URGI (it being understood that a
merger of a Credit Party into an entity which is a Wholly-Owned Subsidiary of
URGI, to the extent otherwise permitted by this Agreement, will not be deemed to
cause such Credit Party to cease to be a Wholly-Owned Subsidiary of URGI for
purposes of this definition) or (b) Alleghany shall fail to maintain beneficial
ownership, directly or indirectly, free and clear of any Lien, of at least 51 %
of the outstanding voting stock of URGI (unless such failure arises from a
Public Offering and no Person (other than Alleghany) or Persons acting in
concert acquire (either in such Public Offering or thereafter) beneficial
ownership (within the meaning of Rule l3d-3) of the Securities and Exchange
Commission under the Securities Exchange Act of 1934) of 10% or more of the
outstanding voting stock of URGI), or (c) during any period of 25 consecutive
calendar months, commencing on the date of this Agreement, the ceasing of those
individuals (the "Continuing Directors") who (i) were directors of URGI on the
first day of each such period or (ii) subsequently became directors of URGI and
whose initial election or initial nomination for election subsequent to that
date was approved by a majority of the Continuing Directors then on the board of
directors of URGI, to constitute a majority of the board of directors of the
URGI.

         "Closing Transactions" shall mean the acquisition by URC of all of the
issued and outstanding capital stock of Venton and the execution and delivery of
this Agreement.

         "Closing Date" shall mean October 23, 1998 or such later date as may be
specified by the Account Parties by one day's written notice to the
Administrative Agent.

         "Code" means the Internal Revenue Code of 1986, as amended, reformed or
otherwise modified from time to time.

         "Commitment Banks" shall have the meaning assigned to that term in
Section 2.15 hereof.

         "Commitment Fee" shall have the meaning assigned to that term in
Section 2.02(a) hereof.


                                      -6-
<PAGE>   8
         "Consolidated" or "consolidated", when used in connection with any
calculation means a calculation to be determined on a consolidated basis for a
Credit Party (and, if no Credit Party is specified, URGI) and its Subsidiaries
in accordance with Agreement Accounting Principles.

         "Consolidated Person" means, for the taxable year of reference of
Alleghany, each Person which has joined or which is required to join in the
filing of a consolidated federal income tax return with Alleghany.

         "Contingent Obligation" of a Person means any agreement, undertaking or
arrangement by which such Person assumes, guarantees, endorses, contingently
agrees to purchase or provide funds for the payment of, or otherwise becomes or
is contingently liable upon, the obligation or liability of any other Person, or
agrees to maintain the net worth or working capital or other financial condition
of any other Person, or otherwise assures any creditor of such other Person
against loss, including, without limitation, any comfort letter, operating
agreement or take-or-pay contract.

         "Controlled Group" mean all members of a controlled group of
corporations and all trades or businesses (whether or not incorporated) under
common control which, together with the URGI or any of its Subsidiaries, are
treated as a single employer under Section 414 of the Code.

          "Consolidated Subsidiaries" of a Person shall mean those Subsidiaries
of such Person the accounts of which are consolidated with the accounts of such
Person in accordance with generally accepted accounting principles in effect in
the United States.

          "Continuing Letter of Credit Agreement" shall mean the letter of
credit agreement executed and delivered by the Account Parties substantially in
the form of Exhibit A hereto.

         "Conversion to Tranche System" shall have the meaning assigned to that
term in Section 2.15 hereof.

         "Credit Parties" means the Account Parties and the Guarantors and
"Credit Party" means any of them.

         "Current Expiration Date" shall have the meaning assigned to that term
in Section 2.14 hereof.

         "Default" and "Event of Default" shall have the same meaning and shall
mean an event or condition described in Article VII hereof.

         "Dollar," "Dollars" and the symbol $ shall mean lawful money of the
United States of America.

         "Dollar Equivalent" of an amount of a currency other than Dollars shall
mean the amount of Dollars which such amount of such currency could purchase at
11:00 o'clock A.M., Pittsburgh time on the date of determination, based upon the
quoted spot rates of the Issuing Bank at which its applicable branch or office
offers to exchange Dollars for such currency in the London foreign exchange
market and "Dollar Equivalent" of an amount denominated in Dollars shall mean
such amount of Dollars.

         "Environmental Laws" shall have the meaning ascribed to that term in
Section 3.13 hereof.

         "Environmental Permits" shall have the meaning ascribed to that term in
Section 3.13 hereof. 

         "Existing Letters of Credit" shall mean the four letters of credit
listed on Exhibit E hereto, which have been issued before the date of this
Agreement, which are stated to have been issued for the account of Venton
Underwriting Limited (or, in one case, for the account of X.L. Insurance
Company, Ltd.), and which will be deemed to be issued hereunder for the account
of Venton Underwriting Limited.


                                      -7-
<PAGE>   9
         "Expiration Date" shall mean the Business Day immediately preceding the
first anniversary of the Closing Date, as the same may be extended in accordance
with Section 2.14 hereof.

         "Extension Request" shall have the meaning set forth in Section 2.14
hereof.

         "Financial Statements" shall have the meaning set forth in Section 3.05
hereof.

         "Fiscal Year" means the twelve-month accounting period ending December
31 of each year.

         "Governmental Authority" shall mean any government (foreign or
domestic) or any state or other political subdivision thereof or any
governmental body, agency, authority, department or commission (including
without limitation any board of insurance, insurance department or insurance
commissioner or any taxing authority or political subdivision) or any
instrumentality or officer thereof (including without limitation any court or
tribunal) exercising executive, legislative, judicial, regulatory or
administrative functions of or pertaining to government and any corporation,
partnership or other entity directly or indirectly owned or controlled by or
subject to the control of any of the foregoing.

         "Guaranteed Obligations" shall have the meaning assigned to that term
in Section 5.01 hereof.

         "Guarantors" and "Guarantor" shall have the meaning assigned to those
terms in the preamble to this Agreement.

         "Guaranty Equivalents" means, with respect to any Person, without
duplication, any obligations of such Person (other than endorsements in the
ordinary course of business of negotiable instruments for deposit or collection)
guaranteeing or intended to guarantee any Indebtedness of any other Person in
any manner, whether direct or indirect, and including without limitation any
obligation, whether or not contingent, (i) to purchase any such Indebtedness or
any property constituting security therefor for the purpose of assuring the
holder of such Indebtedness, (ii) to advance or provide funds or other support
for the payment or purchase of any such Indebtedness or to maintain working
capital, solvency or other balance sheet condition of such other Person
(including without limitation keepwell agreements, maintenance agreements,
comfort letters or similar agreements or arrangements) for the benefit of any
holder of Indebtedness of such other Person, (iii) to lease or purchase
property, securities or services primarily for the purpose of assuring the
holder of such Indebtedness, or (iv) to otherwise assure or hold harmless the
holder of such Indebtedness against loss in respect thereof. The amount of any
Guaranty Equivalent hereunder shall (subject to any limitations set forth
therein) be deemed to be an amount equal to the outstanding principal amount (or
maximum principal amount, if larger) of the Indebtedness in respect of which
such Guaranty Equivalent is made.

         "Hazardous Materials" shall have the meaning ascribed thereto in
Section 3.13.

         "Indebtedness" of a Person means such Person's (a) obligations for
borrowed money, (b) obligations representing the deferred purchase price of
Property or services (other than accounts payable arising in the ordinary course
of such Person's business payable on terms customary in the trade), (c)
obligations, whether or not assumed, secured by Liens or payable out of the
proceeds or production from Property now or hereafter owned or acquired by such
Person, (d) obligations which are evidenced by notes, acceptances, or similar
instruments, (e) Capitalized Lease Obligations, (f) Rate Hedging Obligations,
(g) Contingent Obligations, (h) obligations for which such Person is obligated
(contingently, including with respect to undrawn amounts of issued letters of
credit, or otherwise) pursuant to or in respect of a letter of credit or similar
instrument which is issued upon the application of such Person or upon which
such Person is an account party or for which such Person is in any way liable
and (i) repurchase obligations or liabilities of such Person with respect to
accounts or notes receivable sold by such Person.



                                      -8-
<PAGE>   10
         "Insurance Subsidiary" shall mean any direct or indirect present or
future Subsidiary of URGI which is engaged in the insurance business (and shall
in any event include URC), but excluding each of the Venton Entities.

         "Investment" of a Person means any loan, advance (other than
commission, travel and similar advances to officers and employees made in the
ordinary course of business), extension of credit (other than accounts
receivable arising in the ordinary course of business on terms customary in the
trade), deposit account or contribution of capital by such Person to any other
Person or any investment in, or purchase or other acquisition, of the stock,
partnership interests, notes, debentures or other securities of any other Person
made by such Person.

         "Law" shall mean any law (including common law), constitution, statute,
treaty, regulation, rule, ordinance, order, injunction, writ, decree or award of
any Official Body.

         "Letter of Credit" shall mean each Letter of Credit issued by the
Issuing Bank for the account of one or more of the Account Parties pursuant to
this Agreement and each of the Existing Letters of Credit, each as amended,
modified or supplemented from time to time.

         "Letter of Credit Application" shall have the meaning given that term
in Section 2.03(a)(ii) hereof.

         "Letter of Credit Exposure" at any time shall mean the sum at such time
of (a) the Aggregate Letter of Credit Unreimbursed Draws (determined as a Dollar
Equivalent), (b) the Aggregate Letter of Credit Undrawn Availability and (c) the
aggregate Stated Amount (determined as a Dollar Equivalent) of Letters of Credit
which have been requested by an Account Party to be issued hereunder but are not
yet so issued.

         "Letter of Credit Fee" shall have the meaning given that term in
Section 2.01(d) hereof.

         "Letter of Credit Participating Interest" shall have the meaning given
that term in Section 2.04(a) hereof.

         "Letter of Credit Participating Interest Committed Amount" shall have
the meaning given that term in Section 2.01(a) hereof.

         "Letter of Credit Participating Interest Commitment" shall have the
meaning given that term in Section 2.04(a) hereof.

         "Letter of Credit Participating Interest Percentage" and "Letter of
Credit Participating Interest Commitment Percentage" for each Bank shall mean a
fraction, expressed as percentage, the numerator of which is such Bank's Letter
of Credit Participating Interest Committed Amount and the denominator of which
is the aggregate Letter of Credit Participating Interest Committed Amounts of
all of the Banks.

         "Letter of Credit Reimbursement Obligation" with respect to a Letter of
Credit means the obligation of the applicable Account Party to reimburse the
Issuing Bank for drawings on a Letter of Credit, together with interest thereon,
and "Letter of Credit Reimbursement Obligations" shall mean all such obligations
with respect to all Letters of Credit.

         "Letter of Credit Undrawn Availability" with respect to a Letter of
Credit at any time shall mean the maximum amount (determined as a Dollar
Equivalent) available to be drawn under such Letter of Credit at such time or
thereafter, regardless of the existence or satisfaction of any conditions or
limitations on drawing.



                                      -9-
<PAGE>   11
         "Letter of Credit Unreimbursed Draw" with respect to a Letter of Credit
at any time shall mean the amount at such time of a payment made by the Issuing
Bank under such Letter of Credit, to the extent not repaid by the applicable
Account Party.

         "Level One Day" shall mean each day on which URC has a Standard &
Poor's claims paying rating and has at least one Tier I Rating and no rating
below a Tier II Rating; "Level Two Day" shall mean each day (which is not a
Level One Day) on which URC has a Standard & Poor's claims paying rating and has
at least one rating which is a Tier III Rating, a Tier II Rating or a Tier I
Rating, and no rating below a Tier IV Rating; "Level Three Day" shall mean each
day (which is not a Level Two Day or a Level One Day) on which URC has a
Standard & Poor's claims paying rating and has at least one Tier V Rating and no
rating below a Tier VI Rating; "Level Four Day" shall mean each day which is not
a Level Three Day, a Level Two Day or a Level One Day.

         "Leverage Ratio" means, with respect to URGI on a consolidated basis
with its Subsidiaries, at any time, the ratio of (a) Indebtedness to (b) the sum
of Indebtedness plus Net Worth. For the purpose of determining this ratio,
Contingent Obligations shall be excluded from Indebtedness to the extent that
they relate to underlying obligations which are included in Indebtedness with
respect to URGI on a consolidated basis with its Subsidiaries.

         "License" means any license, certificate of authority, permit or other
authorization which is required to be obtained from any Governmental Authority
in connection with the operation, ownership or transaction of insurance
business.

         "Lien" means any security interest, lien (statutory or other),
mortgage, pledge, hypothecation, assignment, deposit arrangement, encumbrance or
preference, priority or other security agreement or preferential arrangement of
any kind or nature whatsoever (including, without limitation, the interest of a
vendor or lessor under any conditional sale, Capitalized Lease or other title
retention agreement).

         "Material Adverse Effect" shall mean a material adverse effect on (a)
the business, Property, condition (financial or other), performance, operations,
or prospects of URGI and its Subsidiaries, taken as a whole, (b) the ability of
any Credit Party to perform its obligations under the Loan Documents, or (c) the
validity or enforceability of any of the Transaction Documents or the rights or
remedies of the Agents, the Issuing Bank or the Banks thereunder.

         "Moody's" means Moody's Investors Service, Inc., a Delaware
corporation, together with any Person succeeding thereto by merger,
consolidation or acquisition of all or substantially all of its assets,
including substantially all of its business of rating securities.

         "Multiemployer Plan" means a Plan maintained pursuant to a collective
bargaining agreement which is subject to Title IV of ERISA to which URGI or any
member of the Controlled Group is a party to which more than one employer is
obligated to make contributions.

         "NAIC" means the National Association of Insurance Commissioners or any
successor thereto, or in lieu thereof any other association, agency or other
organization performing advisory, coordination or other like functions among
insurance departments, insurance commissioners and similar Governmental
Authorities of the various states of the United States toward the promotion of
uniformity in the practices of such Governmental Authorities.

         "Net Worth" means at any date the stockholders' equity of URGI and its
Subsidiaries determined on a consolidated basis in accordance with Agreement
Accounting Principles.

         "Nonextending Bank" shall have the meaning assigned to that term in
Section 2.14 hereof.


                                      -10-
<PAGE>   12
         "Obligations" shall mean, collectively, the Letter of Credit
Reimbursement Obligations and the obligations of each and every Account Party to
pay all fees, indemnities and all other liabilities of such Account Party
arising pursuant to the terms of this Agreement or the other Transaction
Documents (including without limitation under Section 7.02 hereof).

         "Office," when used in connection with the Administrative Agent, shall
mean its office located at One Mellon Bank Center, Pittsburgh, Pennsylvania
15258, or at such other office or offices of the Administrative Agent or branch,
subsidiary or affiliate thereof as may be designated in writing from time to
time by the Administrative Agent to the Account Parties.

         "Official Body" shall have the same meaning as Governmental Authority.

         "Permitted Liens" shall mean the Liens described in paragraphs (a)
through (h) of Section 6.16.

         "Person" shall mean an individual, corporation, partnership, trust,
unincorporated association, joint venture, joint-stock company, government
(including political subdivisions), official body or agency, or any other
entity.

         "Plan" means an employee pension benefit plan as defined in Section
3(2) of ERISA, as to which URGI or any member of the Controlled Group may have
any liability.

         "Potential Default" shall mean any event or condition referenced in
Article VII hereof which with notice, passage of time or both would constitute
an Event of Default.

         "Pound," "Pounds" and the symbol "pound sterling" shall mean the lawful
money of the United Kingdom.

         "Prime Rate" shall mean the interest rate per annum announced from time
to time by the Administrative Agent as its prime rate, such rate to change
automatically effective as of the effectiveness of each announced change in such
prime rate (it being understood that such Prime Rate may be greater or less than
other interest rates charged by the Administrative Agent to other borrowers and
is not solely based or dependent upon the interest rate which the Administrative
Agent may charge any particular borrower or class of borrower).

         "Property" of a Person means any and all property, whether real,
personal, tangible, intangible, or mixed, of such Person, or other assets owned,
leased or operated by such Person.

         "Pro Rata" shall have the meaning assigned to that term in Section 2.15
hereof.

         "Purchase" means any transaction, or any series of related
transactions, consummated on or after the date of this Agreement by which URGI
or any of its Subsidiaries (a) acquires any going business or all or
substantially all of the assets of any firm, corporation or division or line of
business thereof whether through purchase of assets, merger or otherwise, or (b)
directly or indirectly acquires (in one transaction or as the most recent
transaction in a series of transactions) at least a majority (in number of
votes) of the securities of a corporation which have ordinary voting power for
the election of directors (other than securities having such power only by
reason of the happening of a contingency) or a majority (by percentage or voting
power) of the outstanding partnership interests of a partnership or membership
interests of a limited liability company.

         "Purchasing Bank" shall have the meaning assigned to that term in
Section 9.13(c) hereof.

         "Quarterly Statement" means the quarterly statutory financial statement
of any Insurance Subsidiary required to be filed with the insurance commissioner
(or similar authority) of its jurisdiction of incorporation or, if no specific
form is so required, in the form of financial statements permitted by such
insurance commissioner (or such similar authority) to be used for filing
quarterly statutory financial


                                      -11-
<PAGE>   13
statements and shall contain the type of financial information permitted by such
insurance commissioner (or such similar authority) to be disclosed therein,
together with all exhibits or schedules filed therewith.

         "Rate Hedging Obligations" of a Person means any and all obligations of
such Person, whether absolute or contingent and however and whenever created,
arising, evidenced or acquired (including all renewals, extensions and
modifications thereof and substitutions therefor), under (a) any and all
agreements, devices or arrangements designed to protect at least one of the
parties thereto from the fluctuations of interest rates, exchange rates or
forward rates applicable to such party's assets, liabilities or exchange
transactions, including, but not limited to, dollar-denominated or
cross-currency interest rate exchange agreements, forward currency exchange
agreements, interest rate cap or collar protection agreements, forward rate
currency or interest rate options, puts and warrants, and (b) any and all
cancellations, buybacks, reversals, terminations or assignments of any of the
foregoing.

         "Regular Payment Date" shall mean the last day of each March, June,
September and December after the date hereof, or, if such last day is not a
Business Day, the next succeeding Business Day.

         "Regulation T" means Regulation T of the Board of Governors of the
Federal Reserve System as from time to time in effect and shall include any
successor or other regulation or official interpretation of such Board of
Governors relating to the extension of credit by securities brokers and dealers
for the purpose of purchasing or carrying margin stocks applicable to such
Persons.

         "Regulation U" means Regulation U of the Board of Governors of the
Federal Reserve System as from time to time in effect and any successor or other
regulation or official interpretation of said Board of Governors relating to the
extension of credit by banks for the purpose of purchasing or carrying margin
stocks applicable to such Persons.

         "Regulation X" means Regulation X of the Board of Governors of the
Federal Reserve System as from time to time in effect and shall include any
successor or other regulation or official interpretation of said Board of
Governors relating to the extension of credit by the specified lenders for the
purpose of purchasing or carrying margin stocks applicable to such Persons.

         "Release" is defined in the Comprehensive Environmental Response,
Compensation and Liability Act, as amended, 42 U.S.C. 39601 et seq.

         "Replacement Bank" shall have the meaning assigned to that term in
Section 2.14 hereof.

         "Reportable Event" means a reportable event as defined in Section
4043(a) of ERISA and the regulations issued under such section, with respect to
a Plan, excluding, however, such events as to which the PBGC has by regulation
unconditionally or conditionally waived the requirement of Section 4043(a) of
ERISA that it be notified within 30 days of the occurrence of such event;
provided, that a failure to meet the minimum funding standard of Section 412 of
the Code and of Section 302 of ERISA shall be a Reportable Event regardless of
the issuance of any such waiver of the notice requirement in accordance with
either Section 4043(a) of ERISA or Section 412(d) of the Code.

         "Required Banks" shall mean at any time Banks which have at least 51%
of the aggregate Letter of Credit Participating Interests in Letters of Credit
outstanding at such time.

         "Required Commitment Banks" shall have the meaning assigned to that
term in Section 2.15 hereof.

         "SAP" shall mean, with respect to any Insurance Subsidiary, the
statutory accounting practices prescribed or permitted by the insurance
commissioner (or other similar authority, including the Council of Lloyd's) in
the jurisdiction of such Insurance Subsidiary for the preparation of annual
statements and other financial reports by insurance companies of the same type
as such Insurance Subsidiary in effect 


                                      -12-
<PAGE>   14
from time to time, applied in a manner consistent with those used in preparing
the financial statements referred to in Section 3.05; provided, that with
respect to the financial covenants contained in Section 6.22 hereof the related
definitions, and the computations required thereby, "SAP" means such statutory
accounting practices (except where Agreement Accounting Principles are
applicable) in effect on the date hereof applied in a manner consistent with
those used in preparing the financial statements referred to in Section 3.05.

         "Single Employer Plan" means a Plan subject to Title IV of ERISA
maintained by any member of the Controlled Group for employees of any member of
the Controlled Group, other than a Multiemployer Plan.

         "Solvent" means, when used with respect to a Person, that (a) the fair
saleable value of the assets of such Person is in excess of the total amount of
the present value of its liabilities (including for purposes of this definition
all liabilities (including loss reserves as determined by such Person), whether
or not reflected on a balance sheet prepared in accordance with Agreement
Accounting Principles and whether direct or indirect, fixed or contingent,
secured or unsecured, disputed or undisputed), (b) such Person is able to pay
its debts or obligations in the ordinary course as they mature and (c) such
Person does not have unreasonably small capital to carry on its business as
conducted and as proposed to be conducted. "Solvency" shall have a correlative
meaning.

         "Standard Notice" shall mean an irrevocable notice provided to the
Administrative Agent at no later than 10:00 o'clock a.m., Pittsburgh time, on a
Business Day. Standard Notice shall be in writing (including telex, facsimile or
cable communication) or by telephone (to be subsequently confirmed in writing)
in any such case, effective upon receipt by the Administrative Agent.

         "Stated Amount" shall mean, with respect to a Letter of Credit, the
maximum face or stated amount of such Letter of Credit, irrespective of whether
such maximum amount is available for drawing at the time in question.

         "Statutory Authorized Control Level Risk-Based Capital" means, with
respect to any Insurance Subsidiary at any time, the statutory authorized
control level risk-based capital of such Insurance Subsidiary at such time, as
determined in accordance with SAP (currently "Five Year Historical Data", Line
26 of the Annual Statement-1997), based on methodology of NAIC in effect on the
date hereof.

         "Statutory Net Income" means, with respect to any Insurance Subsidiary
for any computation period, the net income earned by such Person during such
period, as determined in accordance with SAP (currently "Underwriting and
Investment" exhibit, "Statement of Income", Line 16 of the Annual
Statement-1997).

         "Statutory Risk-Based Capital Ratio" means, with respect to URC and its
Insurance Subsidiaries, determined on a combined basis for URC and all of its
Insurance Subsidiaries (without double counting), the ratio of (i) Statutory
Total Adjusted Capital to (ii) Statutory Authorized Control Level Risk-Based
Capital.

         "Statutory Surplus" means, with respect to any Insurance Subsidiary at
any time, the surplus as regards policyholders of such Insurance Subsidiary at
such time, as determined in accordance with SAP (currently "Liabilities, Surplus
and Other Funds" statement, Page 3, Line 25, Column I of the Annual
Statement-1997).

         "Statutory Total Adjusted Capital" means, with respect to any Insurance
Subsidiary at any time, the statutory total adjusted capital of such Insurance
Subsidiary at such time, as determined in accordance with SAP (currently "Five
Year Historical Data," Line 25 of the Annual Statement-1997).


                                      -13-
<PAGE>   15
         "Subsidiary" of a Person at any time shall mean any corporation of
which a majority (by number of shares or number of votes) of any class of
outstanding capital stock normally entitled to vote for the election of one or
more directors (regardless of any contingency which does or may suspend or
dilute the voting rights of such class) is at such time owned directly or
indirectly by such Person or one or more Subsidiaries of such Person.

         "Substantial Portion" means, with respect to the Property of URGI and
its Subsidiaries, Property which (a) represents more than 10% of the
consolidated assets of URGI and its Subsidiaries, as would be shown in the
consolidated financial statements of URGI and its Subsidiaries as at the end of
the Fiscal Quarter next preceding the date on which such determination is made,
or (b) is responsible for more than 10% of the consolidated net revenues or of
the consolidated Net Income of URGI and its Subsidiaries for the 12-month period
ending as of the end of the Fiscal Quarter next preceding the date of
determination.

         "Tax Sharing Agreements" means, collectively, that certain Amendment to
Agreement dated as of August 18, 1995 between Alleghany and URGI, that certain
Amendment to Agreement dated as of December 1, 1995 between URGI and URC, that
certain Amendment to Agreement dated as of December 1, 1995 between URGI and URC
Risk Managers., Inc., that certain Agreement dated as of December 1, 1995
between URGI and The Underwriting Center, Inc., that certain Agreement dated as
of December 1, 1995 between The Underwriting Center, Inc. and The Underwriting
Center of Georgia, Inc. (now known as The Center E&S Insurance Services, Inc.),
that certain Amendment to Agreement dated as of December 1, 1995 between URC and
Commercial Underwriters Insurance Company, and that certain Agreement dated as
of December 1, 1995 between URC and Underwriters Insurance Company, as each is
in effect on the date of this Agreement, together with any other agreements
entered into pursuant to Section 6.23, and as any such agreement may be
hereafter amended, subject to compliance with the terms hereof.

         "Termination Event" means, with respect to a Plan which is subject to
Title IV of ERISA, (a) a Reportable Event, (b) the withdrawal of any member of
the Controlled Group from such Plan during a plan year in which such member of
the Controlled Group was a "substantial employer" as defined in Section
4001(a)(2) of ERISA or was deemed such under Section 4068(f) of ERISA, (c) the
termination of such Plan, the filing of a notice of intent to terminate such
Plan or the treatment of an amendment of such Plan as a termination under
Section 4041 of ERISA, (d) the institution by the PBGC of proceedings to
terminate such Plan or (e) any event or condition which could reasonably be
expected to constitute grounds under Section 4042 of ERISA for the termination
of or appointment of a trustee to administer, such Plan.

         "Tier I Rating" with respect to Standard & Poor's shall mean a claims
paying rating of at least AA and with respect to Moody's shall mean a solicited
insurance financial strength rating of at least Aa2; "Tier II Rating" with
respect to Standard & Poor's shall mean a claims paying rating of AA- and with
respect to Moody's shall mean a solicited insurance financial strength rating of
Aa3; "Tier III Rating" with respect to Standard & Poor's shall mean a claims
paying rating of A+ and with respect to Moody's shall mean a solicited insurance
financial strength rating of A1; "Tier IV Rating" with respect to Standard &
Poor's shall mean a claims paying rating of A and with respect to Moody's shall
mean a solicited insurance financial strength rating of A2; "Tier V Rating" with
respect to Standard & Poor's shall mean a claims paying rating of A- and with
respect to Moody's shall mean a solicited insurance financial strength rating of
A3; "Tier VI Rating" with respect to Standard & Poor's shall mean a claims
paying rating of BBB+ and with respect to Moody's shall mean a solicited
insurance financial strength rating of Baa1. As used in this definition, a
Moody's rating shall be deemed to be "solicited" only if such rating was
obtained from Moody's upon application by the entity to which such rating
relates.

          "Tranche 1 Bank", "Tranche 1 Letter of Credit", "Tranche 1 Letter of
Credit Participating Interest", "Tranche 2 Bank", "Tranche 2 Letter of Credit",
"Tranche 2 Letter of Credit Participating Interest", "Tranche 2 Letter of Credit
Participating Interest Commitment", "Tranche 2 Letter of Credit Participating
Interest Committed Amount", "Tranche 2 Letter of Credit Participating Interest


                                      -14-
<PAGE>   16
Commitment Percentage", "Tranche 3 Letter of Credit", "Tranche 4 Letter of
Credit" and "Tranche X" shall have the respective meanings assigned to those
terms in Section 2.15 hereof.

         "Transaction Document" or "Transaction Documents" shall mean this
Agreement, the Continuing Letter of Credit Agreement, each Letter of Credit
Application, each Letter of Credit and any other documents or instruments
executed and delivered in connection herewith or therewith.

         "Unfunded Liabilities" means the amount (if any) by which the present
value of all vested and unvested accrued benefits under all Single Employer
Plans exceeds the fair market value of all such Plan assets allocable to such
benefits, all determined as of the then most recent valuation date for such
Plans using PBGC actuarial assumptions for single employer plan terminations.

         "Unmatured Default" means an event or condition which but for the lapse
of time or the giving of notice, or both, would constitute a Default.

         "URC" means Underwriters Reinsurance Company, a New Hampshire insurance
company.

         "Venton" means Venton Holdings Ltd., a Bermuda corporation.

         "Venton Entities" means, collectively, Venton, Venton Underwriting
Group Limited, an English company, Venton Underwriting Limited, Talbot
Underwriting Limited and each company which is a Subsidiary of Venton on the
date of this Agreement, together with each permitted successor thereto which
does not engage in any business other than the businesses engaged in by the
Venton Entities on the date of this Agreement.

         "Wholly-Owned Subsidiary" of a Person means (a) any Subsidiary all of
the outstanding voting securities of which shall at the time be owned or
controlled directly or indirectly, by such Person or one or more Wholly-Owned
Subsidiaries of such Person, or by such Person and one or more Wholly-Owned
Subsidiaries of such Person, or (b) any partnership, association, joint venture
or similar business organization 100% of the ownership interests having ordinary
voting power of which shall at the time be so owned or controlled.

         "Year 2000 Problem" shall mean any significant risk that computer
hardware, software or equipment containing embedded microchips of any Credit
Party or any of its Subsidiaries which is essential to its business or
operations will not, in the case of dates or time periods occurring after
December 31, 1999, function at least as effectively and reliably as in the case
of times or time periods occurring before January 1, 2000, including the making
of accurate leap year calculations.

         1.02. Construction. Unless the context of this Agreement otherwise
clearly requires, "or" has the inclusive meaning represented by the phrase
"and/or." References in this Agreement to "determination" by any Agent include
estimates by such Agent in good faith, without gross negligence and without
manifest error (in the case of quantitative determinations) and beliefs held by
such Agent in good faith and without gross negligence (in the case of
qualitative determinations). The words "hereof," "herein," "hereunder" and
similar terms in this Agreement refer to this Agreement as a whole and not to
any particular provision of this Agreement. The section and other headings
contained in this Agreement are for reference purposes only and shall not
control or affect the construction of this Agreement or the interpretation
hereof in any respect. Section, subsection and exhibit references are to this
Agreement unless otherwise specified.

         1.03. Accounting Principles. Except as otherwise provided in this
Agreement, all computations and determinations as to accounting or financial
matters shall be made, and all financial statements to be delivered pursuant to
this Agreement shall be prepared, in accordance with Agreement Accounting
Principles or SAP, as the context requires (including principles of
consolidation where appropriate), and 


                                      -15-
<PAGE>   17
all accounting or financial terms shall have the meanings ascribed to such terms
by Agreement Accounting Principles or SAP, as appropriate.



                                   ARTICLE II

                          THE LETTER OF CREDIT FACILITY


         2.01.  Letters of Credit.

         (a) Letter of Credit Commitments. Subject to the terms and conditions
and relying upon the representations and warranties herein set forth, the
Issuing Bank agrees to issue Letters of Credit for the account of an Account
Party at any time or from time to time on or after the date hereof and to but
not including the Expiration Date (it being understood that Letters of Credit
may be outstanding for the account of one or more of the Account Parties at any
time). The Issuing Bank shall have no obligation to issue any Letter of Credit
if, after such Letter of Credit were issued, the Letter of Credit Exposure upon
such issuance would exceed the aggregate of the Banks' Letter of Credit
Participating Interest Committed Amounts. Each Bank's "Letter of Credit
Participating Interest Committed Amount" at any time shall be equal to the
amount set forth as its "Initial Letter of Credit Participating Interest
Committed Amount" below its name on the signature pages hereof, as such amount
may have been reduced under Section 2.02(b) hereof at such time, and subject to
transfer to another Bank as provided in Section 9.13 hereof.

         (b) Terms of Letters of Credit. The Account Parties shall not request
to be issued, and the Issuing Bank shall have no obligation to issue, any Letter
of Credit except within the following limitations: (i) each Letter of Credit
shall have an expiration date no later than five years after the date of
issuance thereof (or, in the case of Letters of Credit issued prior to December
31, 1998, no later than December 31, 2003); provided, however, any Letter of
Credit may have an "evergreen" provision having substantially the effect set
forth on Schedule 2.01(b) hereof, (ii) each Letter of Credit shall be
denominated in Dollars or Pounds and (iii) each Letter of Credit shall be
payable only against sight drafts (and not time drafts).

         (c) Form of Letters of Credit. The Issuing Bank shall have no
obligation to issue any letter of credit which is unsatisfactory in form,
substance or beneficiary to the Issuing Bank in the exercise of its reasonable
judgment consistent with its customary practice (it being understood that the
standard form of letter of credit required by Lloyd's from time to time will be
found satisfactory by the Issuing Bank unless issuance of a letter of credit in
such form would violate Law). The Issuing Bank may not object to a letter of
credit on account of the fact that it may be presented for drawing at the
Issuing Bank's branch in London, England (or, if the Issuing Bank no longer
maintains such a branch at the time of issuance of a Letter of Credit, at such
other location in London, England as may be commercially reasonable).

         (d) Letter of Credit Fee. Each Account Party shall pay or cause to be
paid to the Administrative Agent for the account of each Bank, in accordance
with its Letter of Credit Participating Interest Commitment Percentage, a fee
(the "Letter of Credit Fee") (based on a year of 360 days and actual days
elapsed), for each Letter of Credit issued for the account of such Account Party
for each day from and including the date of issuance thereof to and including
the date of expiration or termination thereof, on the Letter of Credit Undrawn
Availability on such day at a rate per annum equal to 0.45% for each Level One
Day, 0.525% for each Level Two Day, 0.60% for each Level Three Day and 0.75% for
each Level Four Day. Such Letter of Credit Fee shall be due and payable for the
preceding period for which such fee has not been paid on each of the following
dates: (i) each Regular Payment Date, (ii) the date of each drawing on such
Letter of Credit, and (iii) the date of expiration or termination of such Letter
of Credit. For each day on which a Default shall have occurred and be
continuing, the rate set forth in the first sentence of this paragraph shall be
increased by 2% per annum.


                                      -16-
<PAGE>   18
         (e) Purpose of Letters of Credit. The Account Parties agree that each
Letter of Credit shall be used by the Account Party for whom it is issued as a
standby letter of credit, to support the Account Party's Lloyds of London
underwriting activity and for general corporate purposes, all in the ordinary
course of business of such Account Party. The provisions of this Section 2.01(e)
represent only an obligation of the Account Parties to the Issuing Bank and the
Banks; the Issuing Bank shall have no obligation to the Banks to ascertain the
purpose of any Letter of Credit, and, without limiting the generality of the
provisions of Section 2.04(b) hereof, the rights and obligations of the Banks
and the Issuing Bank among themselves shall not be impaired or affected by a
breach of this Section 2.01(e).

         (f) Fronting Fee; Administration Fees. Each Account Party shall pay to
the Administrative Agent, for the sole account of the Issuing Bank, (i) a
fronting fee (the "Fronting Fee") for Letters of Credit (based on a year of 360
days and actual days elapsed), for each Letter of Credit issued for the account
of such Account Party for each day from and including the date of issuance
thereof to and including the date of expiration or termination thereof, on the
Letter of Credit Undrawn Availability on such day at a rate per annum equal to
0.10%; and (ii) such other administration, issuance, maintenance, amendment,
drawing and negotiation fees as are customarily charged by the Issuing Bank to
its customers generally at the time in question (a list of which customary
charges as of the date of this Agreement has been provided by the Issuing Bank
to URC) or are otherwise agreed between the Issuing Bank and URC.

         (g) Administrative Agent's Annual Fee. The Account Parties shall pay to
the Administrative Agent, for its sole account, an annual agent's fee (the
"Administrative Agent's Annual Fee") at the times and in the amounts specified
in a letter agreement between URC and the Administrative Agent.





         2.02.  Commitment Fee; Reduction of the Committed Amounts.

         (a) Commitment Fee. Each Account Party shall pay or cause to be paid to
the Administrative Agent for the account of each Bank a commitment fee (the
"Commitment Fee") for each day during the period from the Closing Date to but
excluding the Expiration Date calculated (based on a year of 360 days and actual
days elapsed) at a per annum rate equal to 0.08% for each Level One Day, 0.10%
for each Level Two Day, 0.125% for each Level Three Day and 0.15% for each Level
Four Day, payable on the unused portion of such Bank's Letter of Credit
Participating Interest Committed Amount in effect on such day. Such fee shall be
payable on each Regular Payment Date and on the Expiration Date for the
preceding period for which such fee has not been paid.

         (b) Reduction of the Committed Amounts. URC may at any time or from
time to time reduce Pro Rata the Letter of Credit Participating Interest
Committed Amounts of the Banks to an aggregate amount (which may be zero) not
less than the Letter of Credit Exposure. Any reduction of the Letter of Credit
Participating Interest Committed Amounts shall be in an aggregate minimum amount
of $5,000,000 and in an amount which is an integral multiple of $1,000,000.
Reduction of the Letter of Credit Participating Interest Committed Amounts shall
be made by providing not less than three Business Days' notice (which notice
shall be irrevocable) to such effect to the Administrative Agent. After the date
specified in such notice, the Commitment Fee shall be calculated upon the Letter
of Credit Participating Interest Committed Amounts as so reduced.

         2.03.  Procedure for Issuance and Amendment of Letters of Credit.

         (a) Request for Issuance. An Account Party may from time to time
request, upon at least three Business Days' notice, the Issuing Bank to issue a
Letter of Credit by:


                                      -17-
<PAGE>   19
                  (i) delivering to the Issuing Bank and the Administrative
         Agent a written request to such effect, specifying the date on which
         such Letter of Credit is to be issued, the expiration date thereof, and
         the Stated Amount thereof, and

                  (ii) delivering to the Issuing Bank a completed application,
         in the form annexed hereto as Exhibit F, or in such other form as may
         from time to time be required by the Issuing Bank in accordance with
         its customary practice with respect to its customers generally (the
         "Letter of Credit Application"), together with such other certificates,
         documents and other papers as are specified in such application.

Upon receiving any such notice, the Issuing Bank shall promptly notify the
Administrative Agent (by telephone or otherwise), and furnish the Administrative
Agent with the proposed form of Letter of Credit to be issued. The
Administrative Agent shall, promptly upon receiving such notice, notify the
Banks of such proposed Letter of Credit (which notice shall specify the Stated
Amount and term of such proposed Letter of Credit), and shall determine, as of
the close of business on the Business Day before such proposed issuance, whether
such proposed Letter of Credit complies with the limitations set forth in
Section 2.01 hereof. If such limitations set forth in Section 2.01 are not
satisfied or if the Required Banks have given notice to the Administrative Agent
to cease issuing Letters of Credit pursuant to Section 2.03(c)(ii) hereof, the
Administrative Agent shall notify the Issuing Bank (in writing or by telephone
promptly confirmed in writing) that the Issuing Bank is not authorized to issue
such Letter of Credit. If the Issuing Bank issues a Letter of Credit, it shall
deliver the original of such Letter of Credit to the beneficiary thereof or as
the Account Party shall otherwise direct, and shall promptly notify the
Administrative Agent thereof and furnish a copy thereof to the Administrative
Agent.

         (b) Request for Extension or Increase. An Account Party may from time
to time request the Issuing Bank to extend the expiration date of an outstanding
Letter of Credit or increase (or, with the consent of the beneficiary, decrease)
the Stated Amount of or the amount available to be drawn on such Letter of
Credit. Such extension or increase shall for all purposes hereunder be treated
as though such Account Party had requested issuance of a replacement Letter of
Credit (except only that the Issuing Bank may, if it elects, issue a notice of
extension or increase in lieu of issuing a new Letter of Credit in substitution
for the outstanding Letter of Credit).

         (c)  Limitations on Issuance, Extension and Amendment.

                  (i) As between the Issuing Bank, on the one hand, and the
         Agents and the Banks, on the other hand, the Issuing Bank shall be
         justified and fully protected in issuing such Letter of Credit after
         receiving authorization from the Administrative Agent as provided in
         Section 2.03(a) hereof, notwithstanding any subsequent notices to the
         Issuing Bank, any knowledge of an Event of Default (unless the Issuing
         Bank shall have received a notice specifying that such Event of Default
         is an "Event of Default" under this Agreement) or Potential Default,
         any knowledge of failure of any condition specified in Section 4.02
         hereof to be satisfied, any other knowledge of the Issuing Bank, or any
         other event, condition or circumstance whatsoever. The Issuing Bank may
         amend, modify or supplement Letters of Credit or Letter of Credit
         Applications, or waive compliance with any condition of issuance or
         payment, without the consent of, and without liability to, any Agent or
         any Bank, provided that any such amendment, modification or supplement
         that extends the expiration date or increases the Stated Amount of or
         the amount available to be drawn on an outstanding Letter of Credit
         shall be subject to Section 2.01.

                  (ii) As between the Administrative Agent, on the one hand, and
         the Banks, on the other hand, the Administrative Agent shall not
         authorize issuance of any Letter of Credit if the Administrative Agent
         shall have received, at least two Business Days before authorizing such
         issuance, from the Required Banks an unrevoked written notice that any
         condition precedent set forth in Section 4.02 will not be satisfied as
         of the time of such issuance and expressly requesting that the
         Administrative Agent direct the Issuing Bank to cease to issue Letters
         of Credit. Absent such notice, 


                                      -18-
<PAGE>   20
         or unless the Administrative Agent determines that the applicable
         limitations set forth in Section 2.01 hereof are not satisfied, the
         Administrative Agent shall be justified and fully protected, as against
         the Banks, in authorizing the Issuing Bank to issue such Letter of
         Credit, notwithstanding any subsequent notices to the Administrative
         Agent, any knowledge of an Event of Default or Potential Default, any
         knowledge of failure of any condition specified in Section 4.02 hereof
         to be satisfied, any other knowledge of the Administrative Agent, or
         any other event, condition or circumstance whatsoever.

         2.04.  Letter of Credit Participating Interests.

         (a) Generally. Concurrently with the issuance of each Letter of Credit,
the Issuing Bank automatically shall be deemed, irrevocably and unconditionally,
to have sold, assigned, transferred and conveyed to each other Bank, and each
other Bank automatically shall be deemed, irrevocably and unconditionally,
severally to have purchased, acquired, accepted and assumed from the Issuing
Bank, without recourse to, or representation or warranty by, the Issuing Bank,
an undivided interest, in a proportion equal to such Bank's Pro Rata share, in
all of the Issuing Bank's rights and obligations in, to or under such Letter of
Credit, the related Letter of Credit Application, the Letter of Credit
Reimbursement Obligations, and all collateral, guarantees and other rights from
time to time directly or indirectly securing the foregoing (such interest of
each Bank being referred to herein as a "Letter of Credit Participating
Interest", it being understood that the Letter of Credit Participating Interest
of the Issuing Bank is the interest not otherwise attributable to the Letter of
Credit Participating Interests of the other Banks). Each Bank irrevocably and
unconditionally agrees to the immediately preceding sentence, such agreement
being herein referred to as such Bank's "Letter of Credit Participating Interest
Commitment". Amounts other than Letter of Credit Reimbursement Obligations and
Letter of Credit Fees payable from time to time under or in connection with a
Letter of Credit or Letter of Credit Application shall be for the sole account
of the Issuing Bank. On the date that any Purchasing Bank becomes a party to
this Agreement in accordance with Section 9.13(c) hereof, Letter of Credit
Participating Interests in all outstanding Letters of Credit held by the Bank
from which such Purchasing Bank acquired its interest hereunder shall be
proportionately reallocated between such Purchasing Bank and such transferor
Bank (and, to the extent such transferor Bank is the Issuing Bank, the
Purchasing Bank shall be deemed to have acquired a Letter of Credit
Participating Interest from the Issuing Bank to such extent).

         (b)  Maximum Amounts of Funding of Participations.

                  (i) This Section 2.04(b)(i) is applicable if the Conversion to
Tranche System has not occurred. No Bank will be obligated to fund its Letter of
Credit Participating Interest Percentage of a drawing on a Letter of Credit if
such funding would cause the aggregate amount of outstanding unreimbursed
fundings by such Bank of drawings on Letters of Credit to exceed such Bank's
Letter of Credit Participating Interest Committed Amount, unless such excess
results from the fact, with respect to a drawing on a Letter of Credit
denominated in Pounds, that the Dollar Equivalent of one Pound is higher at the
time of such funding than it was at the time of issuance of such Letter of
Credit denominated in Pounds.

                  (ii) This Section 2.04(b)(ii) is applicable if the Conversion
to Tranche System has occurred. No Tranche 1 Bank, Tranche 2 Bank or Tranche X
Bank, as the case may be, will be obligated to fund its Letter of Credit
Participating Interest Percentage of a drawing on a Tranche 1 Letter of Credit,
Tranche 2 Letter of Credit or Tranche X Letter of Credit, as the case may be, if
such funding would cause the aggregate amount of outstanding unreimbursed
fundings by such Bank of drawings on Letters of Credit under such applicable
Tranche to exceed such Bank's Letter of Credit Participating Interest Committed
Amount under such applicable Tranche, unless such excess results from the fact,
with respect to a drawing on a Letter of Credit denominated in Pounds, that the
Dollar Equivalent Amount of one Pound is higher at the time of such funding than
it was at the time of issuance of such Letter of Credit denominated in Pounds.


                                      -19-
<PAGE>   21
         (c) Obligations Absolute. Notwithstanding any other provision hereof,
each Bank hereby agrees that its obligation to participate in each Letter of
Credit issued in accordance herewith, its obligation to make the payments
specified in Section 2.05 hereof, and the right of the Issuing Bank to receive
such payments in the manner specified therein, are each absolute, irrevocable
and unconditional and shall not be affected by any event, condition or
circumstance whatever. The failure of any Bank to make any such payment shall
not relieve any other Bank of its funding obligation hereunder on the date due,
but no Bank shall be responsible for the failure of any other Bank to meet its
funding obligations hereunder.

         2.05.  Letter of Credit Drawings and Reimbursements.

         (a) Account Party's Reimbursement Obligation. Each Account Party hereby
agrees to reimburse the Issuing Bank, by making payment to the Administrative
Agent for the account of the Issuing Bank in accordance with Section 2.11(a)
hereof on the date of each payment made by the Issuing Bank under any Letter of
Credit issued for such Account Party's account (but not earlier than the date
which is one Business Day after notice of such payment or of the drawing giving
rise to such payment is given to URC), without, protest or demand, all of which
are hereby waived, and an action therefor shall immediately accrue. Each Account
Party agrees that it will make such payment to the Administrative Agent for the
account of the Issuing Bank in the same currency as the currency of the payment
by the Issuing Bank under such Letter of Credit. To the extent such payment is
not timely made, such Account Party hereby agrees to pay to the Administrative
Agent, for the account of the Issuing Bank, on demand, interest on any Letter of
Credit Unreimbursed Draws for each day from and including the date of such
payment by the Issuing Bank until paid (before and after judgment) in accordance
with Section 2.11(a) hereof, at the rate per annum set forth in Section 2.11(b)
hereof.

         (b) Payment by Banks on Account of Unreimbursed Draws. If the Issuing
Bank makes a payment under any Letter of Credit and is not reimbursed in full
therefor on such payment date in accordance with Section 2.05(a) hereof, the
Issuing Bank will promptly notify the Administrative Agent thereof (which notice
may be by telephone), and the Administrative Agent shall forthwith notify each
Bank (which notice may be by telephone promptly confirmed in writing) thereof.
No later than the Administrative Agent's close of business on the date such
notice is given (if notice is given by 2:00 o'clock P.M. Pittsburgh time) or
10:00 o'clock A.M. Pittsburgh time the following day (if notice is given after
2:00 o'clock P.M. Pittsburgh time) , each such Bank will pay to the
Administrative Agent, for the account of the Issuing Bank, in immediately
available funds, an amount equal to such Bank's Pro Rata share of the
unreimbursed portion of such payment by the Issuing Bank, provided such notice
is given no later than 2:00 o'clock P.M., Pittsburgh time. Each Bank agrees that
such payment to the Administrative Agent for the account of the Issuing Bank
shall be in the same currency as the currency of the payment by the Issuing Bank
under the Letter of Credit. If and to the extent that any Bank fails to make
such payment to the Issuing Bank on such date, such Bank shall pay such amount
on demand, together with interest, for the Issuing Bank's own account, for each
day from and including the date of the Issuing Bank's payment to but not
including the date of repayment to the Issuing Bank (before and after judgment)
at rate per annum for each day from and including the date of such payment by
the Issuing Bank to and including the second Business Day thereafter equal to
the Applicable Interest Rate.

         (c) Distributions to Banks. If, at any time, after there occurs a
Letter of Credit Unreimbursed Draw and the Issuing Bank has received from any
Bank such Bank's share of such Letter of Credit Unreimbursed Draw, and the
Issuing Bank receives any payment or makes any application of funds on account
of the Letter of Credit Reimbursement Obligation arising from such Letter of
Credit Unreimbursed Draw, the Issuing Bank will pay to the Administrative Agent,
for the account of such Bank, such Bank's Pro Rata share of such payment.

         (d) Rescission. If any amount received by the Issuing Bank on account
of any Letter of Credit Reimbursement Obligation shall be avoided, rescinded or
otherwise returned or paid over by the Issuing Bank for any reason at any time,
whether before or after the termination of this Agreement (or the Issuing Bank
believes in good faith that such avoidance, rescission, return or payment is
required, whether or not such 


                                      -20-
<PAGE>   22
matter has been adjudicated), each such Bank will, promptly upon notice from the
Administrative Agent or the Issuing Bank, pay over to the Administrative Agent
for the account of the Issuing Bank its Pro Rata share of such amount, together
with its Pro Rata share of any interest or penalties payable with respect
thereto.

         2.06 Equalization. If any Bank receives any payment or makes any
application on account of its Letter of Credit Participating Interest, such Bank
shall forthwith pay over to the Issuing Bank, in Dollars and in like kind of
funds received or applied by it the amount in excess of such Bank's ratable
share of the amount so received or applied.

         2.07. Obligations Absolute. The payment obligations of the Account
Parties and of the Banks under Section 2.05 shall be unconditional and
irrevocable and shall be paid strictly in accordance with the terms of this
Agreement under all circumstances, including, without limitation, the following
circumstances:

         (a) any lack of validity or enforceability of this Agreement, any
Letter of Credit or any Transaction Document against an Account Party;

         (b) the existence of any claim, set-off, defense or other right which
any Account Party, any Guarantor or any other Person may have at any time
against any beneficiary or transferee of any Letter of Credit (or any Persons
for whom any such beneficiary or transferee may be acting), the Issuing Bank,
any Bank, or any other Person, whether in connection with this Agreement, the
transactions contemplated hereby or any unrelated transaction;

         (c) any draft, certificate, statement or other document presented under
any Letter of Credit proving to be forged, fraudulent, invalid or insufficient
in any respect or any statement therein being untrue or inaccurate in any
respect;

         (d) payment by the Issuing Bank under any Letter of Credit against
presentation of a draft or certificate which does not comply with the terms of
such Letter of Credit, or payment by the Issuing Bank under the Letter of Credit
in any other circumstances in which conditions to payment are not met, except
any such wrongful payment to the extent resulting from the gross negligence or
willful misconduct of the Issuing Bank; or

         (e) any other event, condition or circumstance whatever, whether or not
similar to any of the foregoing, except if the same results solely from the
gross negligence or willful misconduct of the Issuing Bank.

Each Account Party bears the risk of, and neither the Issuing Bank, any of its
directors, officers, employees or agents, nor any Bank, shall be liable or
responsible for any of, the foregoing matters, the use which may be made of any
Letter of Credit, or acts or omissions of the beneficiary or any transferee in
connection therewith, except for such person's gross negligence or willful
misconduct.

         2.08. Unacceptable Credit Rating. If the long-term debt credit rating
of any Bank shall decline below the Acceptable Credit Rating (as defined below),
the Issuing Bank shall have the right, but not the obligation, to cause such
Bank to be replaced as a party hereto by a Replacement Bank, subject to approval
of such Replacement Bank by each Account Party (which in each case shall not be
unreasonably withheld). In the event that any Bank is to be replaced by a
Replacement Bank, such Bank shall, upon payment to it of all amounts owing to it
on the date of its replacement, assign all of its interests hereunder to such
Replacement Bank in accordance with the provisions of Section 9.13(c) hereof. A
Bank shall have an "Acceptable Credit Rating" if it has both (i) a long-term
debt rating of at least A by Standard & Poor's and (ii) a long-term debt rating
of at least A2 by Moody's. Each Credit Party agrees that it shall cooperate with
the Issuing Bank in connection with the identification of one or more
Replacement Banks if the Issuing Bank exercises its right set forth in the first
sentence of this Section 2.08.


                                      -21-
<PAGE>   23
         2.09. Letter of Credit Applications. The representations, warranties
and covenants by the Account Parties under, and the rights and remedies of the
Issuing Bank under, the Continuing Letter of Credit Agreement and any Letter of
Credit Application relating to any Letter of Credit are in addition to, and not
in limitation or derogation of, representations, warranties and covenants by the
Account Parties under, and rights and remedies of the Issuing Bank and the Banks
under, this Agreement, the Transaction Documents, and applicable Law. Each
Account Party acknowledges and agrees that all rights of the Issuing Bank under
any Letter of Credit Application shall inure to the benefit of each Bank to the
extent of its Letter of Credit Participating Interest Commitment Percentage as
fully as if such Bank was a party to such Letter of Credit Application. In the
event of any inconsistency between the terms of this Agreement and any Letter of
Credit Application, this Agreement shall prevail.

         2.10.  Certain Provisions Relating to the Issuing Bank.

         (a) General. The Issuing Bank shall have no duties or responsibilities
to the other Bank Parties except those expressly set forth in this Agreement and
the other Transaction Documents, and no implied duties or responsibilities on
the part of the Issuing Bank shall be read into this Agreement or any
Transaction Document or shall otherwise exist. The duties and responsibilities
of the Issuing Bank to the other Bank Parties under this Agreement and the other
Transaction Documents shall be mechanical and administrative in nature, and the
Issuing Bank shall not have a fiduciary relationship in respect of any Bank
Party or any other Person. The Issuing Bank shall not be liable for any action
taken or omitted to be taken by it under or in connection with this Agreement or
any other Transaction Document, unless caused by its own gross negligence or
willful misconduct. The Issuing Bank shall not be under any obligation to
ascertain, inquire or give any notice to the other Bank Parties relating to (i)
the performance or observance of any of the terms or conditions of this
Agreement or any other Transaction Document on the part of any Account Party,
(ii) the business, operations, condition (financial or otherwise) or prospects
of the Account Parties or any other Person, or (iii) the existence of any Event
of Default or Potential Default. The Issuing Bank shall not be under any
obligation, either initially or on a continuing basis, to provide any Agent or
any Bank with any notices, reports or information of any nature, whether in its
possession presently or hereafter, except for such notices, reports and other
information expressly required by this Agreement to be so furnished. The Issuing
Bank shall not be responsible for the execution, delivery, effectiveness,
enforceability, genuineness, validity or adequacy of this Agreement or any other
Transaction Document.

         (b) Administration. The Issuing Bank may rely upon any notice or other
communication of any nature (written or oral, including but not limited to
telephone conversations, whether or not such notice or other communication is
made in a manner permitted or required by this Agreement or any Transaction
Document) purportedly made by or on behalf of the proper party or parties, and
the Issuing Bank shall not have any duty to verify the identity or authority of
any Person giving such notice or other communication. The Issuing Bank may
consult with legal counsel (including, without limitation, in-house counsel for
the Issuing Bank or in-house or other counsel for the Account Parties),
independent public accountants and any other experts selected by it from time to
time, and the Issuing Bank shall not be liable for any action taken or omitted
to be taken in good faith in accordance with the advice of such counsel,
accountants or experts. Whenever the Issuing Bank shall deem it necessary or
desirable that a matter be proved or established with respect to any Account
Party or Bank Party, such matter may be established by a certificate of such
Account Party or Bank Party, as the case may be, and the Issuing Bank may
conclusively rely upon such certificate. The Issuing Bank shall not be deemed to
have any knowledge or notice of the occurrence of any Event of Default or
Potential Default unless the Issuing Bank has received notice from a Bank or any
Credit Party referring to this Agreement, describing such Event of Default or
Potential Default, and stating that such notice is a "notice of default". If the
Issuing Bank receives such a notice, the Issuing Bank shall give prompt notice
thereof to the Administrative Agent.

         (c) Indemnification of Issuing Bank by Banks. Each Bank hereby agrees
to reimburse and indemnify the Issuing Bank and each of its directors, officers,
employees and agents (to the extent not reimbursed by the Account Parties and
without limitation of the obligations of the Account Parties to do so), Pro
Rata, from and against any and all amounts, losses, liabilities, claims,
damages, expenses, obligations, 


                                      -22-
<PAGE>   24
penalties, actions, judgments, suits, costs or disbursements of any kind or
nature (including, without limitation, the reasonable fees and disbursements of
counsel (other than in-house counsel) for the Issuing Bank or such other Person
in connection with any investigative, administrative or judicial proceeding
commenced or threatened, whether or not the Issuing Bank or such other Person
shall be designated a party thereto) that may at any time be imposed on,
incurred by or asserted against the Issuing Bank, in its capacity as such, or
such other Person, as a result of, or arising out of, or in any way related to
or by reason of, this Agreement, any other Transaction Document, any transaction
from time to time contemplated hereby or thereby, or any transaction financed in
whole or in part or directly or indirectly with the proceeds of any Letter of
Credit, provided, that no Bank shall be liable for any portion of such amounts,
losses, liabilities, claims, damages, expenses, obligations, penalties, actions,
judgments, suits, costs or disbursements resulting from the gross negligence or
willful misconduct of the Issuing Bank or such other Person, as finally
determined by a court of competent jurisdiction.

         (d) Issuing Bank in its Individual Capacity. With respect to its
Commitments and the Obligations owing to it, the Issuing Bank shall have the
same rights and powers under this Agreement and each other Transaction Document
as any other Bank and may exercise the same as though it were not the Issuing
Bank, and the term "Banks" and like terms shall include the Issuing Bank in its
individual capacity as such. The Issuing Bank and its affiliates may, without
liability to account, make loans to, accept deposits from, acquire debt or
equity interests in, act as trustee under indentures of, act as agent under
other credit facilities for, and engage in any other business with, any Credit
Party and any stockholder, subsidiary or affiliate of any Credit Party, as
though the Issuing Bank were not the Issuing Bank hereunder.

         2.11. Payments Generally; Interest and Interest on Overdue Amounts.

         (a) Payments Generally. All payments to be made by an Account Party in
respect of fees, indemnity, expenses or other amounts due from such Account
Party hereunder or under any Transaction Document shall be payable in Dollars
(except in the case of payment of reimbursement obligations with respect to
Letters of Credit denominated in Pounds, which shall be payable in Pounds) by
not later than 2:00 o'clock p.m., Pittsburgh time (or, in the case of payments
in Pounds, London time), on the day when due without presentment, demand,
protest or notice of any kind, all of which are hereby expressly waived, and an
action therefor shall immediately accrue, without setoff, counterclaim,
withholding or other deduction of any kind or nature. Except for payments under
Sections 2.12, 2.13 and 9.04 hereof, such payments shall be made to the
Administrative Agent at its Office in Dollars in funds immediately available at
such Office or, in the case of payments in Pounds, at its London branch in funds
immediately available at such branch. Payments under Sections 2.12, 2.13 and
9.04 hereof shall be made to the applicable Bank at such domestic account as it
shall specify to the Account Parties from time to time in funds immediately
available at such account. Any payment or prepayment received by the
Administrative Agent or such Bank after 2:00 p.m., Pittsburgh time or London
time, as applicable, on any day shall be deemed to have been received on the
next succeeding Business Day. The Administrative Agent shall distribute to the
Banks all such payments received by it from an Account Party as promptly as
practicable after receipt by the Administrative Agent.

         (b) Interest and Interest on Overdue Amounts. Interest on Letter of
Credit Reimbursement Obligations shall accrue at a rate per annum (based on a
year of 360 days and actual days elapsed) which for each day shall be equal to
the then-current Applicable Interest Rate beginning on the day that the related
Letter of Credit payment is made and shall be due and payable on the day that
the Letter of Credit Reimbursement Obligation is due and payable in accordance
with Section 2.05(a) hereof. To the extent permitted by law, after there shall
have become due (by acceleration or otherwise) fees, indemnity, expenses or any
other amounts due from the Account Parties hereunder or under any other
Transaction Document, such amounts shall bear interest for each day until paid
(before and after judgment), payable on demand, at a rate per annum (in each
case based on a year of 360 days and actual days elapsed) which for each day
shall be equal to 2% above the then-current Applicable Interest Rate. To the
extent permitted by law, interest accrued on any amount which has become due
hereunder or under any Transaction Document shall compound on a day-by-day
basis, and hence shall be added daily to the overdue amount to which such
interest relates.


                                      -23-
<PAGE>   25
         2.12. Additional Compensation in Certain Circumstances. If the
introduction of or any change in, or any change in the interpretation or
application of, any Law, regulation or guideline by any Official Body charged
with the interpretation or administration thereof or compliance with any request
or directive of any applicable Official Body (whether or not having the force of
law):

                  (i) subjects any Bank to any tax or changes the basis of
         taxation with respect to this Agreement, the Letters of Credit or
         payments by the Account Parties of fees or other amounts due from the
         Account Parties hereunder or under the other Transaction Documents
         (except for taxes on the overall net income or overall gross receipts,
         profits or gains of such Bank imposed by the jurisdictions (federal,
         state and local) in which the Bank's principal office is located),

                  (ii) imposes, modifies or deems applicable any reserve,
         special deposit or similar requirement against credits or commitments
         to extend credit extended by, assets (funded or contingent) of,
         deposits with or for the account of, other acquisitions of funds by,
         such Bank,

                  (iii) imposes, modifies or deems applicable any capital
         adequacy or similar requirement (A) against assets (funded or
         contingent) of, or credits or commitments to extend credit extended by,
         any Bank or (B) otherwise applicable to the obligations of any Bank
         under this Agreement, or

                  (iv) imposes upon any Bank any other condition or expense with
         respect to this Agreement or the issuance of any Letter of Credit,

and the result of any of the foregoing is to increase the cost to, reduce the
income receivable by, or impose any expense (including loss of margin) upon any
Bank or, in the case of clause (iii) hereof, any Person controlling a Bank, with
respect to this Agreement or the issuance of any Letter of Credit (or, in the
case of any capital adequacy or similar requirement, to have the effect of
reducing the rate of return on such Bank's or controlling Person's capital,
taking into consideration such Bank's or controlling Person's policies with
respect to capital adequacy so long as such policies are reasonable in light of
prevailing market practice at the time) by an amount which such Bank deems to be
material, such Bank may from time to time notify the Account Parties of the
amount determined in good faith (using any averaging and attribution methods) by
such Bank (which determination shall be conclusive absent manifest error) to be
necessary to compensate such Bank for such increase, reduction or imposition.
Such amount shall be due and payable by any applicable Account Party to such
Bank five Business Days after such notice is given, together with an amount
equal to interest on such amount from the date two Business Days after the date
demanded until such due date at the Prime Rate. Such notice shall set forth in
reasonable detail the calculations upon which such Bank determined such amount.
A certificate by such Bank as to the amount due and payable under this Section
2.12 from time to time and the method of calculating such amount shall be
conclusive absent manifest error. Each Bank agrees that it will use good faith
efforts promptly to notify the Account Parties of the occurrence of any event
that would give rise to a payment under this Section 2.12; provided, however
that, so long as such notice is given within a reasonable period after the
occurrence of such event, any failure of such Bank to give any such notice shall
have no effect on the Account Parties' obligations hereunder. Upon the receipt
by the Account Parties from any Bank (an "Affected Bank") of a claim for
compensation under this Section 2.12, the Account Parties may designate another
commercial lending institution satisfactory to the Issuing Bank to acquire and
assume all of such Affected Bank's Letter of Credit Participating Interest
Commitment and Letter of Credit Participating Interest, and all other rights and
obligations of the Affected Bank hereunder, by giving notice of the name of such
institution to the Administrative Agent, the Issuing Bank and the Affected Bank.
Such acquisition and assumption shall be made in accordance with Section
9.13(c).

         2.13.  Taxes.

         (a) Payments Net of Taxes. All payments made by the Account Parties
under this Agreement or any other Transaction Document shall be made free and
clear of, and without reduction or withholding for or on account of, any present
or future income, stamp or other taxes, levies, imposts, duties, charges, fees,


                                      -24-
<PAGE>   26
deductions or withholdings, now or hereafter imposed, levied, collected,
withheld or assessed by any Official Body, and all liabilities with respect
thereto, excluding

                  (i) in the case of each Agent and each Bank, income, profits,
         gains or franchise taxes imposed on such Agent or such Bank by the
         jurisdiction under the laws of which such Agent or such Bank is
         organized or any political subdivision or taxing authority thereof or
         therein or as a result of a connection between such Bank and any
         jurisdiction other than a connection resulting solely from this
         Agreement and the transactions contemplated hereby, and

                  (ii) in the case of each Bank, income, profits, gains or
         franchise taxes imposed by any jurisdiction in which such Bank's
         lending offices which issue Letters of Credit are located or any
         political subdivision or taxing authority thereof or therein

(all such non-excluded taxes, levies, imposts, deductions, charges or
withholdings being hereinafter called "Taxes"), unless an Account Party is
required by Law to withhold or deduct Taxes. If any Taxes are required to be
withheld or deducted from any amounts payable to any Agent or any Bank under
this Agreement or any other Transaction Document, the applicable Account Party
shall pay the relevant amount of such Taxes and the amounts so payable to such
Agent or such Bank shall be increased to the extent necessary to yield to such
Agent or such Bank (after payment of all Taxes) interest or any such other
amounts payable hereunder at the rates or in the amounts specified in this
Agreement and the other Transaction Documents. Whenever any Taxes are paid by an
Account Party with respect to payments made in connection with this Agreement or
any other Transaction Document, as promptly as possible thereafter, such Account
Party shall send to such Agent for its own account or to the Administrative
Agent for the account of such Bank, as the case may be, a certified copy of an
original official receipt received by such Account Party showing payment
thereof. If an Agent or a Bank determines in its sole discretion in good faith
that it has received a refund in respect of, or that it has been able to utilize
to offset its liability for Taxes a credit (a "utilized credit") in respect of,
any Taxes as to which it has been indemnified by an Account Party, or with
respect to which an Account Party has paid additional amounts pursuant to this
Section 2.13, such Agent or such Bank shall promptly after the date of such
receipt pay over the amount of such refund or utilized credit to such Account
Party (but only to the extent of indemnity payments made, or additional amounts
paid, by an Account Party under this Section 2.13 with respect to Taxes giving
rise to such refund or utilized credit and only to the extent that such Agent or
such Bank has determined that the amount of any such refund or utilized credit
is directly attributable to payments made under this Agreement), net of all
reasonable expenses of such Agent or such Bank (including additional Taxes
attributable to such refund or utilized credit, as determined by such Agent or
such Bank) and without interest (other than interest, if any, paid by the
relevant Official Body with respect to such refund or utilized credit). An
Account Party receiving any such payment from an Agent or a Bank shall, upon
demand, pay to such Agent or such Bank any amount paid over to such Account
Party by such Agent or such Bank (plus penalties, interest or other charges) in
the event such Agent or such Bank is required to repay any portion of such
refund or utilized credit to such Official Body. Nothing in this Section 2.13(a)
shall entitle an Account Party to have access to the records of any Agent or any
Bank, including, without limitation, tax returns.

         (b) Indemnity. Each Account Party hereby indemnifies each of the Agents
and each of the Banks for the full amount of all Taxes attributable to payments
by or on behalf of such Account Party hereunder or under any of the other
Transaction Documents, any Taxes paid by such Agent or such Bank, as the case
may be, any present or future claims, liabilities or losses with respect to or
resulting from any omission to pay or delay in paying any Taxes (including any
incremental Taxes, interest or penalties that may become payable by such Agent
or such Bank as a result of any failure to pay such Taxes, except by reason of
unreasonable delay by such Agent or Bank in notifying an Account Party or in
making payment after payment was received from an Account Party), whether or not
such Taxes were correctly or legally asserted. Such indemnification shall be
made within 30 days from the date such Bank or such Agent, as the case may be,
makes written demand therefor.


                                      -25-
<PAGE>   27
         (c) Withholding and Backup Withholding. Each Bank that is incorporated
or organized under the laws of any jurisdiction other than the United States or
any State thereof agrees that, on or prior to the date the first payment is due
to be made to it hereunder or under any other Transaction Document, it will
furnish to the Account Parties and the Administrative Agent:

                  (i) two valid, duly completed copies of United States Internal
         Revenue Service Form 4224 or United States Internal Revenue Form 1001
         or successor applicable form, as the case may be, certifying in each
         case that such Bank is entitled to receive payments under this
         Agreement and the other Transaction Documents without deduction or
         withholding of any United States federal income taxes and

                  (ii) a valid, duly completed Internal Revenue Service Form W-8
         or W-9 or successor applicable form, as the case may be, to establish
         an exemption from United States backup withholding tax.

Each Bank which so delivers to the Account Parties and the Administrative Agent
a Form 1001 or 4224 and Form W-8 or W-9, or successor applicable forms, agrees
to deliver to the Account Parties and the Administrative Agent two further
copies of the said Form 1001 or 4224 and Form W-8 or W-9, or successor
applicable forms, or other manner of certification, as the case may be, on or
before the date that any such form expires or becomes obsolete or otherwise is
required to be resubmitted as a condition to obtaining an exemption from
withholding tax, or after the occurrence of any event requiring a change in the
most recent form previously delivered by it, and such extensions or renewals
thereof as may reasonably be requested by the Account Parties and the
Administrative Agent, certifying in the case of a Form 1001 or Form 4224 that
such Bank is entitled to receive payments under this Agreement or any other
Transaction Document without deduction or withholding of any United States
federal income taxes, unless in any such cases an event (including any changes
in Law) has occurred prior to the date on which any such delivery would
otherwise be required which renders all such forms inapplicable or which would
prevent such Bank from duly completing and delivering any such letter or form
with respect to it and such Bank advises the Account Parties and the
Administrative Agent that it is not capable of receiving payments without any
deduction or withholding of United States federal income tax, and in the case of
a Form W-8 or W-9, establishing an exemption from United States backup
withholding tax, in which case Section 2.13(a) and (b) shall apply to all
further payments.

         2.14. Extensions of Expiration Date. An Account Party may, at its
option, give the Administrative Agent and the Issuing Bank written notice (an
"Extension Request") at any time not more than ninety days, nor less than sixty
days, prior to the Expiration Date in effect at such time (the "Current
Expiration Date") of such Account Party's desire to extend the Expiration Date
to a date which is not later than 364 days after the Current Expiration Date.
The Administrative Agent shall promptly inform the Banks of such Extension
Request. Each Bank which agrees to such Extension Request shall deliver to the
Administrative Agent its express written consent thereto no later than
forty-five days prior to the Current Expiration Date. No extension shall become
effective unless the express written consent thereto by the Required Commitment
Banks and the Issuing Bank is received by the Administrative Agent on or before
the forty-fifth day prior to the Current Expiration Date. If the Issuing Bank
and the Required Commitment Banks, but not all Commitment Banks, have expressly
consented in writing to such Extension Request by such thirtieth day, then the
Administrative Agent shall so notify such Account Party and such Account Party
may, effective as of the Current Expiration Date, take one or both of the
following actions: (i) replace any Commitment Bank which has not agreed to such
Extension Request (a "Nonextending Bank") with another commercial lending
institution satisfactory to the Issuing Bank (a "Replacement Bank") by giving
notice of the name of such Replacement Bank to the Administrative Agent and the
Issuing Bank not later than five Business Days prior to the then effective
Expiration Date and (ii) elect to implement a Conversion to Tranche System as
contemplated by Section 2.15 hereof (or, if the Conversion to Tranche System has
previously been implemented, elect to implement a Supplement to Tranche System
as contemplated by Section 2.15 hereof). In the event that a Nonextending Bank
is to be replaced by a Replacement Bank, such Nonextending Bank shall, upon
payment to it of all amounts 


                                      -26-
<PAGE>   28
owing to it on the date of its replacement, assign all of its interests
hereunder to such Replacement Bank in accordance with the provisions of Section
9.13(c) hereof. A Nonextending Bank retains the obligation to fund draws on
Letters of Credit issued prior to the Expiration Date, unless such Letter of
Credit has been renewed since the Expiration Date. If the Issuing Bank and the
Required Commitment Banks shall have consented to such Extension Request, then,
on the Current Expiration Date, the Expiration Date shall be deemed to have been
extended to, and shall be, the date specified in such Extension Notice. The
Administrative Agent shall promptly after any such extension advise the Banks of
any changes in the Letter of Credit Participating Interest Committed Amounts and
the Letter of Credit Participating Interest Commitment Percentages, as well as
any changes effected by the election of the Conversion to Tranche System or a
Supplement to Tranche System.

         2.15. Tranches. (a) Certain Definitions. As used in this Agreement the
following terms have the meanings ascribed thereto:

                           "Commitment Banks" at any time means Banks which have
                  Letter of Credit Participating Interest Commitments at such
                  time and "Commitment Bank" means any one of them.

                           "Conversion to Tranche System" means the written
                  election by the Account Parties, at a time when an Account
                  Party has made an Extension Request pursuant to Section 2.14
                  hereof and such Extension Request has been consented to in
                  writing by the Issuing Bank and the Required Commitment Banks,
                  but not by all of the Commitment Banks, to classify Letters of
                  Credit as Tranche 1 Letters of Credit and Tranche 2 Letters of
                  Credit, all in accordance with Section 2.15(b) hereof.

                           "L/C Termination Date" means, with respect to a
                  Letter of Credit, the date which is stated therein to be the
                  last day on which the beneficiary thereof may draw thereon.

                           "Pro Rata" means: (i) until the first Special
                  Expiration Date, from and to the Banks in accordance with
                  their respective Letter of Credit Participating Interest
                  Percentages and (ii) thereafter, (x) with respect to Tranche 1
                  Letters of Credit, from and to the Tranche 1 Banks in
                  accordance with their respective Tranche 1 Letter of Credit
                  Participating Interest Percentages, (y) with respect to
                  Tranche 2 Letters of Credit and Tranche 2 Letter of Credit
                  Commitments, from and to the Tranche 2 Banks in accordance
                  with their respective Tranche 2 Letter of Credit Participating
                  Interest Percentages and (z) with respect to each additional
                  Tranche of Letters of Credit (i.e., Tranche 3 Letters of
                  Credit, Tranche 4 Letters of Credit, and so on), if any, from
                  and to the Banks which have Letter of Credit Participating
                  Interest Commitments or Letter of Credit Participating
                  Interests, as applicable, with respect to such Tranche in
                  accordance with their respective related Letter of Credit
                  Participating Interest Percentages.

                           "Required Commitment Banks" at any time means
                  Commitment Banks which have, in the aggregate, Letter of
                  Credit Participating Interest Committed Amounts in excess of
                  66 2/3% of the total outstanding Letter of Credit
                  Participating Interest Committed Amounts at such time.

                           "Special Expiration Date" means the Expiration Date
                  which is in effect at a time when each of the following has
                  occurred: (i) an Account Party has made an Extension Request
                  pursuant to Section 2.14 hereof, (ii) such Extension Request
                  has been consented to in writing by the Issuing Bank and the
                  Required Commitment Banks, but not by all of the Commitment
                  Banks, and (iii) such Account Party has elected to implement a
                  Conversion to Tranche System or a Supplement to Tranche
                  System.


                                      -27-
<PAGE>   29
                           "Supplement to Tranche System" means the election by
                  an Account Party at a time when the Conversion to Tranche
                  System has been previously made and when such Account Party
                  has made an Extension Request pursuant to Section 2.14 hereof
                  and such Extension Request has been consented to in writing by
                  the Issuing Bank and the Required Commitment Banks, but not by
                  all of the Commitment Banks, to classify additional Letters of
                  Credit as Tranche X Letters of Credit.

                           "Tranche 1 Bank" shall mean each Bank which is a Bank
                  immediately prior to the first Special Expiration Date.

                           "Tranche 1 Letter of Credit" means each Letter of
                  Credit which is issued prior to the first Special Expiration
                  Date, but shall not include any such Letter of Credit as to
                  which the L/C Termination Date has been extended to a date
                  after the L/C Termination Date which was in effect on such
                  first Special Expiration Date.

                           "Tranche 1 Letter of Credit Participating Interest
                  Percentage" for each Tranche 1 Bank means such Bank's Letter
                  of Credit Participating Interest Percentage immediately prior
                  to the first Special Expiration Date.

                           "Tranche 2 Bank" shall mean each Bank which has a
                  Tranche 2 Letter of Credit Participating Interest Commitment.

                           "Tranche 2 Letter of Credit" means each Letter of
                  Credit which is issued prior to the second Special Expiration
                  Date, but shall not include any such Letter of Credit as to
                  which the L/C Termination Date has been extended to a date
                  after the L/C Termination Date which was in effect on such
                  second Special Expiration Date and shall not include any
                  Tranche 1 Letter of Credit (it being understood that a Letter
                  of Credit may change from a Tranche 1 Letter of Credit to a
                  Tranche 2 Letter of Credit as a result of the extension, after
                  the first Special Expiration Date, of its L/C Termination
                  Date).

                           "Tranche 3 Letter of Credit" and "Tranche 4 Letter of
                  Credit" have the meanings set forth in the definition of the
                  term "Tranche X".

                           "Tranche X" shall mean Tranche 3 if there are
                  existing Tranche 2 Letters of Credit but not Tranche 3 Letters
                  of Credit, Tranche 4 if there are existing Tranche 3 Letters
                  of Credit but not Tranche 4 Letters of Credit, and so on in
                  consecutive integral succession. The terms "Tranche X Bank",
                  "Tranche X Letter of Credit Participating Interest
                  Commitment", "Tranche X Letter of Credit Participating
                  Interest Committed Amount" and "Tranche X Letter of Credit
                  Participating Interest Percentage" shall have comparable
                  meanings. The term "Tranche X Letter of Credit" shall have a
                  comparable meaning, but such meaning shall be consistent with
                  the following: (i) the term "Tranche 3 Letter of Credit" means
                  each Letter of Credit which is issued prior to the third
                  Special Expiration Date, but shall not include any such Letter
                  of Credit as to which the L/C Termination Date has been
                  extended to a date after the L/C Termination Date which was in
                  effect on such third Special Expiration Date and shall not
                  include any Tranche 1 Letter or Credit or any Tranche 2 Letter
                  of Credit; (ii) the term "Tranche 4 Letter of Credit" means
                  each Letter of Credit which is issued prior to the fourth
                  Special Expiration Date, but shall not include any such Letter
                  of Credit as to which the L/C Termination Date has been
                  extended to a date after the L/C Termination Date which was in
                  effect on such fourth Special Expiration Date and shall not
                  include any Tranche 1 Letter of Credit, any Tranche 2 Letter
                  of Credit or any Tranche 3 Letter of Credit; (iii) the terms
                  "Tranche 5 Letter of Credit", "Tranche 6 Letter of Credit",
                  and so on shall have comparable meanings (it being understood
                  that a Letter of Credit can change from one Tranche to another
                  as a result of an extension of its L/C Termination Date).


                                      -28-
<PAGE>   30
         (b) Conversion to Tranche System. If the Account Parties elect the
Conversion to Tranche System with respect to an Extension Request, the following
shall occur: (i) the Letter of Credit Participating Interest Commitments of
Banks which, with respect to such Extension Request, are Nonextending Banks
shall terminate as of the Special Expiration Date related to such Extension
Request, but such Nonextending Banks (other than Nonextending Banks which have
been replaced as contemplated by Section 2.14 hereof) shall remain parties to
this Agreement and shall retain all of their respective obligations with respect
to Tranche 1 Letters of Credit and shall retain their respective Letter of
Credit Participating Interests in and with respect to Tranche 1 Letters of
Credit; (ii) from and after the Special Expiration Date related to such
Extension Request, the Letter of Credit Participating Interest Commitment of
each Bank which has consented in writing to such Extension Request shall be a
"Tranche 2 Letter of Credit Participating Interest Commitment" and the Letter of
Credit Participating Interested Committed Amount of such Bank shall be its
"Tranche 2 Letter of Credit Participating Interest Committed Amount"; (iii) the
"Tranche 2 Letter of Credit Participating Interest Commitment Percentage" for
each Tranche 2 Bank shall mean a fraction, expressed as percentage, the
numerator of which is such Tranche 2 Bank's Tranche 2 Letter of Credit
Participating Interest Committed Amount and the denominator of which is the
aggregate Tranche 2 Letter of Credit Participating Interest Committed Amounts of
all of the Tranche 2 Banks; and (iv) the Issuing Bank shall have no obligation
to issue any Tranche 2 Letters of Credit (or to permit any Letter of Credit to
become a Tranche 2 Letter of Credit by extension of its L/C Transaction Date) if
the Letters of Credit Exposure upon such issuance (or extension) issued exceed
the aggregate of the Banks' Tranche 2 Letter of Credit Participating Interest
Committed Amounts.

         (c) Supplement to Tranche System. If the Account Parties elect a
Supplement to Tranche System with respect to an Extension Request, the following
shall occur: (i) the Letter of Credit Participating Interest Commitments of
Banks which, with respect to such Extension Request, are Nonextending Banks
shall terminate, but such Nonextending Banks shall remain parties to this
Agreement and shall retain all of their respective obligations with respect to
Letters of Credit under existing Tranches and shall retain their respective
Letter of Credit Participating Interests in and with respect to existing Letters
of Credit; (ii) from and after the Special Expiration Date related to such
Extension Request, the Letter of Credit Participating Interest Commitment of
each Bank which has consented in writing to such Extension Request shall be a
"Tranche X Letter of Credit Participating Interest Commitment" and the Letter of
Credit Participating Interested Committed Amount of such Bank shall be its
"Tranche X Letter of Credit Participating Interest Committed Amount"; (iii) the
"Tranche X Letter of Credit Participating Interest Commitment Percentage" for
each Tranche X Bank shall mean a fraction, expressed as percentage, the
numerator of which is such Tranche X Bank's Tranche X Letter of Credit
Participating Interest Committed Amount, and the denominator of which is the
aggregate Tranche X Letter of Credit Participating Interest Committed Amounts of
all of the Tranche X Banks, all as contemplated by the definition of the term
"Tranche X" contained in paragraph (a) of this Section 2.15; and (iv) the
Issuing Bank shall have no obligation to issue any Tranche X Letters of Credit
(or to permit any Letter of Credit to become a Tranche X Letter of Credit by
extension of its L/C Transaction Date) if the Letters of Credit Exposure upon
such issuance (or extension) issued exceed the aggregate of the Banks' Tranche X
Letter of Credit Participating Interest Committed Amounts.





                                   ARTICLE III

                         REPRESENTATIONS AND WARRANTIES.


         Each Credit Party represents and warrants to the Issuing Bank, the
Banks and the Agents that:


                                      -29-
<PAGE>   31
         3.01. Corporate Existence and Standing. Such Credit Party and each of
its Subsidiaries is a corporation duly incorporated, validly existing and in
good standing under the laws of its respective jurisdiction of incorporation,
has the power and authority to own its properties and assets, and to carry on
its business as presently conducted, and is duly qualified to conduct business
as a foreign corporation in each jurisdiction in which such qualification is
required, except where the failure to be so qualified could not reasonably be
expected to have a Material Adverse Effect.

         3.02. Authorization and Validity. Such Credit Party and any Subsidiary
of such Credit Party which is also a Credit Party has all requisite corporate
power and authority and legal right to execute and deliver (or file, as the case
may be) this Agreement and any other Transaction Document to which it is a
party, to request the issuance of Letters of Credit and to perform its
obligations hereunder and thereunder. The execution and delivery (or filing, as
the case may be) by such Credit Party of this Agreement and each such
Transaction Document and the performance of its obligations hereunder and
thereunder have been duly authorized by proper corporate proceedings and this
Agreement and each such Transaction Document constitute legal, valid and binding
obligations of such Credit Party enforceable against such Credit Party in
accordance with their terms, except as enforceability may be limited by
bankruptcy, insolvency, reorganization, moratorium, fraudulent conveyance or
similar laws affecting the enforcement of creditors' rights generally or by
general principles of equity.

         3.03. Compliance with Laws and Contracts. Such Credit Party and its
Subsidiaries have complied in all material respects with all applicable
statutes, rules, regulations, orders and restrictions of any domestic or foreign
government or any instrumentality or agency thereof having jurisdiction over the
conduct of their respective businesses or the ownership of their respective
properties, except where the failure to so comply could not reasonably be
expected to have a Material Adverse Effect. Neither the execution and delivery
by such Credit Party of the Transaction Documents, the issuance or use of the
Letters of Credit, the consummation of the transactions contemplated by the
Transaction Documents nor compliance with the provisions of the Transaction
Documents will, or at the relevant time did, (a) violate any law, rule,
regulation, order, writ, judgment, injunction, decree or award binding on such
Credit Party or any Subsidiary or such Credit Party's or any Subsidiary's
charter, articles or certificate of incorporation or by-laws, (b) violate the
provisions of or require the approval or consent of any party to any indenture,
instrument or agreement to which such Credit Party or any Subsidiary is a party
or is subject, or by which it, or its property, is bound, or conflict with or
constitute a default thereunder, or result in the creation or imposition of any
Lien in, of or on the property of such Credit Party or any Subsidiary pursuant
to the terms of any such indenture, instrument or agreement or (c) require any
consent of the stockholders of any Person except for approvals or consents which
will be obtained before the initial Letter of Credit issuance and are disclosed
on Schedule 3.03, except for any violation of, or failure to obtain an approval
or consent required under, any such law, rule, regulation, order, writ,
judgment, injunction, decree, award, indenture, instrument or agreement that
could not reasonably be expected to have a Material Adverse Effect.

         3.04. Governmental Consents. Except as set forth on Schedule 3.04
hereto, no order, consent, approval, qualification, license, authorization, or
validation of, or filing, recording or registration with, or exemption by, or
other action in respect of, a Governmental Authority, or any subdivision
thereof, any securities exchange or any other Person is or at the relevant time
was required to authorize, or is or at the relevant time was required in
connection with the execution, delivery, consummation or performance of, or the
legality, validity, binding effect or enforceability of any of the Transaction
Documents, the issuance or use of the Letters of Credit or the consummation of
any transaction contemplated in the Transaction Documents.

         3.05. Financial Statements. URC and URGI have heretofore furnished to
the Administrative Agent, with sufficient copies for each Bank, the financial
statements listed on Schedule 3.05 hereto (collectively, the "Financial
Statements"). Each of the Financial Statements was prepared in accordance with
Agreement Accounting Principles or SAP, as applicable, and, together with the
related notes, fairly presents the consolidated financial condition and
operations of the relevant Credit Party and its Subsidiaries, or of the relevant
Insurance Subsidiary, as applicable, at such dates and the consolidated 


                                      -30-
<PAGE>   32
results of their operations for the respective periods then ended (except, in
the case of such unaudited statements, for normal year-end audit adjustments).

         3.06. Material Adverse Change. No material adverse change in the
business, Property, condition (financial or otherwise), performance, prospects
or operations of URC and its Subsidiaries, taken as a whole, or of URGI and its
Subsidiaries, taken as a whole, has occurred since December 31, 1997.

         3.07. Taxes. Except as set forth in Schedule 3.07 hereto, such Credit
Party and each of its Subsidiaries have filed or caused to be filed on a timely
basis and in correct form all United States federal and applicable state tax
returns and all other material tax returns which are required to be filed by it,
each of Alleghany and each other Consolidated Person has filed or caused to be
filed all United States federal and material applicable state tax returns which
are required to be filed by it on a consolidated or combined basis and which
include URC or any Subsidiary of URC and each of the Credit Parties, the
Subsidiaries, Alleghany and each other Consolidated Person has paid all taxes
due pursuant to said returns or pursuant to any assessment received by such
person, except, in each case, such taxes, if any, as are being contested in good
faith and as to which adequate reserves have been provided in accordance with
Agreement Accounting Principles or SAP, as applicable, and as to which no Lien
exists. From and after October 7, 1993, each of URC and each Subsidiary of URC
has joined in the filing of a consolidated federal income tax return with
Alleghany. No tax liens have been filed and no claims are being asserted with
respect to any taxes for which any Consolidated Person may be liable which could
reasonably be expected to have a Material Adverse Effect. The charges, accruals
and reserves (a) on the books of each Credit Party and its Subsidiaries in
respect of any taxes or other governmental charges and (b) on the books of
Alleghany and such other Consolidated Person in respect of any taxes or other
governmental charges owing with respect to any tax year beginning after December
31, 1992 are in accordance with Agreement Accounting Principles or SAP, as
applicable.

         3.08. Litigation. There is no litigation, arbitration proceeding,
inquiry or governmental investigation pending or, to the knowledge of any of its
officers, threatened against or affecting such Credit Party or any of its
Subsidiaries or any of their respective properties which could reasonably be
expected to have a Material Adverse Effect if adversely determined.

         3.09. Insurance Licenses. No License, the loss of which could
reasonably be expected to have a Material Adverse Effect, is the subject of a
proceeding for suspension or revocation. To such Credit Party's knowledge, there
is no sustainable basis for such suspension or revocation, and no such
suspension or revocation has been threatened by any Governmental Authority. No
Insurance Subsidiary has received written notice from any Governmental Authority
that it is deemed to be "commercially domiciled" for insurance regulatory
purposes in any jurisdiction other than that indicated on Schedule 3.09.
Schedule 3.09 also indicates the line or lines of insurance in which each
Insurance Subsidiary is engaged and the state or states in which such Insurance
Subsidiary is licensed to engage in any line of insurance in each case as of the
date of this Agreement.

         3.10. Use of Proceeds. Such Credit Party is not engaged in the business
of extending credit to others for the purposes of buying or carrying any "margin
stock."

         3.11. Permits, Licenses and Rights. Such Credit Party and each
Subsidiary of such Credit Party own or possess all the patents, trademarks,
service marks, trade names, copyrights, licenses, franchises, permits and rights
with respect to the foregoing necessary to own and operate their respective
properties and to carry on their respective businesses as presently conducted
and presently planned to be conducted without, to the best knowledge of such
Credit Party, conflict with the rights of others, except where failure to do so
could not reasonably be expected to have a Material Adverse Effect.

         3.12. Disclosure. None of the (a) information, exhibits or reports
furnished by or on behalf of any Credit Party to any Agent or to any Bank in
connection with this Agreement or the Transaction Documents and the transactions
contemplated hereby and thereby or (b) representations or warranties of


                                      -31-
<PAGE>   33
any Credit Party contained in this Agreement, the other Transaction Documents or
any other document, certificate or written statement furnished to the Agents or
the Banks by or on behalf of any Credit Party for use in connection with the
transactions contemplated by this Agreement or the Transaction Documents
contained, contains or will contain any untrue statement of a material fact or
omitted, omits or will omit to state a material fact necessary in order to make
the statements contained herein or therein not misleading in light of the
circumstances in which the same were made and on the date as of which the same
were made; provided, that this Section 3.12 shall not apply to any plan,
forecast, projection or pro forma financial information contained in such
materials that is based upon good faith estimates and assumptions believed to be
reasonable at the time made. The pro forma financial information contained in
such materials is based upon good faith estimates and assumptions believed by
the Credit Parties to be reasonable at the time made. There is no fact known to
any Credit Party (other than matters of a general economic or political nature
and other than matters applicable to the insurance industry generally) that has
had since December 31, 1997 or could reasonably be expected to have a Material
Adverse Effect and that has not been disclosed herein or in such other
documents, certificates and statements furnished to the Agents or Banks for use
in connection with the transactions contemplated by this Agreement and the other
Transaction Documents.

         3.13. Environmental Laws. There are no claims, investigations,
litigation, administrative proceedings, notices, requests for information (each
a "Proceeding"), whether pending or, to such Credit Party's knowledge,
threatened, or judgments or orders asserting violations of applicable federal,
state and local environmental, health and safety statutes, regulations,
ordinances, codes, rules, orders, decrees, directives and standards
("Environmental Laws") or relating to any toxic or hazardous waste, substance or
chemical or any pollutant, contaminant, chemical or other substance defined or
regulated pursuant to any Environmental Law, including, without limitation,
asbestos, petroleum, crude oil or any fraction thereof ("Hazardous Materials")
asserted against such Credit Party or any of its Subsidiaries which, in any
case, could reasonably be expected to have a Material Adverse Effect. As of the
date hereof, there are no such Proceedings pending, or to such Credit Party's
knowledge threatened, except as disclosed on Schedule 3.13. Such Credit Party
and each of its Subsidiaries have obtained and are in compliance in all material
respects with all permits, certificates, licenses, approvals and other
authorizations ("Environmental Permits") required for the operation of their
business and have filed all required notifications or reports relating, in each
case, to chemical substances, air emissions, effluent discharges and the
storage, treatment, transport and disposal of Hazardous Materials. As of the
date hereof, such Credit Party and its Subsidiaries do not have liabilities
exceeding $100,000 in the aggregate for all of them with respect to compliance
with applicable Environmental Laws and Environmental Permits or related to the
generation, treatment, storage, disposal, release, investigation or cleanup of
Hazardous Materials, and, to the knowledge of such Credit Party, no facts or
circumstances exist which could give rise to such liabilities with respect to
compliance with applicable Environmental Laws and Environmental Permits and the
generation, treatment, storage, disposal, release, investigation or cleanup of
Hazardous Materials.

         3.14. Reserves. Each reserve and other liability amount in respect of
the insurance business, including, without limitation reserve and other
liability amounts in respect of insurance policies, established or reflected in
the SAP Financial Statements for the year ended December 31, 1997 of each
Insurance Subsidiary, was determined in accordance with generally accepted
actuarial standards consistently applied, was fairly stated in accordance with
sound actuarial principles and was in compliance with the requirements of the
insurance laws, rules and regulations of its state of domicile as of the date
thereof. Each Insurance Subsidiary owns assets that qualify as admitted assets
under applicable law in an amount at least equal to the sum of all such reserves
and liability amounts and its minimum statutory capital and surplus as required
by the insurance laws, rules and regulations of its state of domicile.

         3.15. Year 2000 Compliance. Such Credit Party has reviewed its
operations and those of its Subsidiaries with a view to assessing whether its
businesses, or the businesses of any of its Subsidiaries, will be vulnerable to
a Year 2000 Problem or will be vulnerable to the effects of a Year 2000 Problem
suffered by any of such Credit Party's or any of its Subsidiaries' major
commercial counter-parties. Such 


                                      -32-
<PAGE>   34
Credit Party represents and warrants that it has a reasonable basis to believe
that no Year 2000 Problem will cause a Material Adverse Effect.

         3.16. Capitalization. Schedule 3.16 hereto contains (a) an accurate
description of URGI's capitalization as of June 30, 1998, after giving pro forma
effect to the Closing Transactions and (b) an accurate list of all of such
Credit Party's existing Subsidiaries as of the date of this Agreement, setting
forth their respective jurisdictions of incorporation and the percentage of
their capital stock owned by such Credit Party or other Subsidiaries. All of the
issued and outstanding shares of capital stock of such Credit Party and of each
Subsidiary have been duly authorized and validly issued, are fully paid and
non-assessable, and are free and clear of all Liens. Except as set forth on
Schedule 3.16, no authorized but unissued or treasury shares of capital stock of
such Credit Party or any Subsidiary are subject to any option, warrant, right to
call or commitment of any kind or character. Except as set forth on Schedule
3.16, neither the Credit Party nor any Subsidiary has any outstanding stock or
securities convertible into or exchangeable for any shares of its capital stock,
or any right issued to any Person (either preemptive or other) to subscribe for
or to purchase, or any options for the purchase of or any agreements providing
for the issuance (contingent or otherwise) of, or any calls, commitments or
claims of any character relating to any of its capital stock or any stock or
securities convertible into or exchangeable for any of its capital stock other
than as expressly set forth in the certificate or articles of incorporation of
such Credit Party or such Subsidiary. Neither the Credit Party nor any
Subsidiary is subject to any obligation (contingent or otherwise) to repurchase
or otherwise acquire or retire any shares of its capital stock or any
convertible securities, rights or options of the type described in the preceding
sentence except as otherwise set forth on Schedule 3.16. Except as set forth on
Schedule 3.16 as of the date hereof such Credit Party does not own or hold,
directly or indirectly, any capital stock or equity security of, or any equity
or partnership interest in any Person other than such Subsidiaries.

         3.17. ERISA. The Unfunded Liabilities of all Single Employer Plans
maintained by such Credit Party or any of its Subsidiaries do not in the
aggregate exceed $1,000,000 and the Unfunded Liabilities of all Single Employer
Plans maintained by the other members of the Controlled Group do not in the
aggregate exceed an amount which could reasonably be expected to have a Material
Adverse Effect. Except as set forth on Schedule 3.17 neither such Credit Party
nor any other member of the Controlled Group maintains, or is obligated to
contribute to, any Multiemployer Plan. Each Plan complies in all material
respects with all applicable requirements of law and regulations, no Reportable
Event has occurred with respect to any Plan maintained by such Credit Party or
any of its Subsidiaries, no Reportable Event has occurred with respect to any
Plan maintained by any other member of the Controlled Group that could
reasonably be expected to have a Material Adverse Effect, neither such Credit
Party nor any Subsidiary has withdrawn from any Multiemployer Plan or initiated
steps to do so, no other member of the Controlled Group has withdrawn from any
Multiemployer Plan resulting in any withdrawal liability that could reasonably
be expected to have a Material Adverse Effect or initiated steps to do so, and
no steps have been taken to reorganize or terminate any Plan by any member of
the Controlled Group or, to such Credit Party's knowledge, by any other Person.

         3.18. Defaults. No Default or Unmatured Default has occurred and is
continuing.

         3.19. Federal Reserve Regulations. Neither the Credit Party nor any its
Subsidiaries is engaged, directly or indirectly, principally, or as one of its
important activities, in the business of extending, or arranging for the
extension of credit for the purpose of purchasing or carrying Margin Stock. No
part of the proceeds of any Letter of Credit will be used in a manner which
would violate, or result in a violation of Regulation T, Regulation U or
Regulation X. Neither the issuance of any Letter of Credit hereunder nor the use
of the proceeds thereof will violate or conflict with the provisions of,
Regulation T, Regulation U or Regulation X. Following the issuance of any
Letters of Credit, less than 25% of the value (as determined by any reasonable
method) of the assets of such Credit Party and its Subsidiaries which are
subject to any limitation on sale, pledge, or other restriction hereunder taken
as a whole has been, and will continue to be, represented by Margin Stock.


                                      -33-
<PAGE>   35
         3.20. Investment Company; Public Utility Holding Company Act. Neither
such Credit Party nor any Subsidiary is, or after giving effect to the issuance
of any Letter of Credit will be, an "investment company" or a company
"controlled" by an "investment company" within the meaning of the Investment
Company Act of 1940, as amended. Neither such Credit Party nor any Subsidiary is
a "holding company" or a "subsidiary company" of a "holding company", or an
"affiliate" of a "holding company" or of a "subsidiary company" of a "holding
company", within the meaning of the Public Utility Holding Company Act of 1935,
as amended.

         3.21. Certain Fees. No broker's or finder's fee or commission was, is
or will be payable by such Credit Party or any Subsidiary with respect to any of
the transactions contemplated by this Agreement. Such Credit Party hereby agrees
to indemnify the Agents and the Banks against and agrees that it will hold each
of them harmless from any claim, demand or liability for broker's or finder's
fees or commissions alleged to have been incurred by such Credit Party in
connection with any of the transactions contemplated by this Agreement and any
expenses (including, without limitation, attorneys' fees and time charges of
attorneys for any Agent or any Bank which attorneys may be employees of any
Agent or any Bank) arising in connection with any such claim, demand or
liability. No other similar fee or commissions will be payable by such Credit
Party or any Subsidiary for any other services rendered to such Credit Party or
any Subsidiary ancillary to any of the transactions contemplated by this
Agreement.

         3.22. Solvency. As of the date hereof, before and after giving effect
to the consummation of the transactions contemplated by the Transaction
Documents and the payment of all fees, costs and expenses payable by the Credit
Party or its Subsidiaries with respect to the transactions contemplated by the
Transaction Documents, each Credit Party (individually and on a consolidated
basis) is Solvent.

         3.23. Ownership of Properties. Except as set forth on Schedule 3.23
hereto, such Credit Party and its Subsidiaries own, free of all Liens, other
than those permitted by Section 6.16 or by any of the other Transaction
Documents, all of the properties and assets reflected in the Financial
Statements as being owned by it, except for assets sold, transferred or
otherwise disposed of in the ordinary course of business since the date thereof.
To the knowledge of such Credit Party, there are no actual, threatened or
alleged defaults with respect to any leases of real property under which such
Credit Party or any Subsidiary is lessee or lessor which could reasonably be
expected to have a Material Adverse Effect. Such Credit Party and its
Subsidiaries own or possess rights to use all licenses, patents, patent
applications, copyrights, service marks, trademarks and trade names necessary to
continue to conduct their business as heretofore conducted, and no such license,
patent or trademark has been declared invalid or been limited by order of any
court or by agreement or is the subject of any infringement, interference or
similar proceeding or challenge, except for proceedings and challenges which
could not reasonably be expected to have a Material Adverse Effect.

         3.24. Indebtedness. Attached hereto as Schedule 3.24 is a complete and
correct list of all Indebtedness of such Credit Party and its Subsidiaries
outstanding on the date of this Agreement (other than Indebtedness in a
principal amount not exceeding $1,000,000 for a single item of Indebtedness and
$5,000,000 in the aggregate for all such Indebtedness), showing the aggregate
principal amount which was outstanding on such date after giving effect to the
Closing Transactions. Such Credit Party has delivered or caused to be delivered
to the Administrative Agent, with sufficient copies for each of the Banks, a
true and complete copy of each instrument evidencing Indebtedness in a principal
amount of $5,000,000 or more and of each document pursuant to which any of such
Indebtedness was issued.

         3.25. Material Agreements. Neither such Credit Party nor any Subsidiary
is a party to any agreement or instrument or subject to any charter, bylaw or
other restriction set forth in a similar governing document which could
reasonably be expected to have a Material Adverse Effect or which restricts or
imposes conditions upon the ability of any Subsidiary to (a) pay dividends or
make other distributions on its capital stock, (b) make loans or advances to
such Credit Party or (c) repay loans or advances from such Credit Party. Neither
such Credit Party nor any Subsidiary is in default in the performance,
observance or fulfillment of any of the obligations, covenants or conditions
contained in any 


                                      -34-
<PAGE>   36
agreement to which it is a party, which default could reasonably be expected to
have a Material Adverse Effect.

         3.26 Insurance. Such Credit Party and its Subsidiaries maintain
insurance on their Property with such companies, in such amounts and covering
such risks as is, in each case, consistent with sound business practice.



                                   ARTICLE IV

                                   CONDITIONS


         4.01. Effectiveness. The effectiveness of this Agreement shall be
subject to the following conditions:

         (a) Proceedings and Incumbency. There shall have been delivered to the
Administrative Agent with sufficient copies for each Bank a certificate with
respect to each Credit Party in form and substance satisfactory to each
Co-Arranger dated the Closing Date and signed on behalf of each Credit Party by
the Secretary or an Assistant Secretary of such Credit Party certifying as to:
(a) true copies of all corporate action taken by such Credit Party relative to
this Agreement and the other Transaction Documents applicable to it, including
but not limited to that described in Section 3.02 hereof and (b) the names, true
signatures and incumbency of the officer or officers of such Credit Party
authorized to execute and deliver this Agreement and the other Transaction
Documents applicable to it. Each Bank, the Issuing Bank and each Agent may
conclusively rely on such certificates unless and until a later certificate
revising the prior certificate has been furnished to such Person.

         (b) Organizational Documents. There shall have been delivered to the
Administrative Agent with sufficient copies for each Bank (i) certified copies
of the articles of incorporation or memorandum of association and by-laws or
other equivalent organizational documents for each Credit Party and (ii) a
certificate of good standing for each Credit Party certified by the appropriate
Official Body of its place of organization.

         (c) Opinions of Counsel. There shall have been delivered to the
Administrative Agent with sufficient copies for each Bank written opinions
addressed to the Banks, dated the Closing Date, of Messrs. Dewey Ballantine LLP,
counsel for URGI and URC and special English counsel for Talbot Underwriting
Limited, and of Messrs. Conyers, Dill & Pearman, special Bermuda counsel for
Venton Underwriting Limited, in form and substance satisfactory to each Bank,
which together are substantially to the effects set forth in Exhibit C.

         (d) Details, Proceedings and Documents. All legal details and
proceedings in connection with the transactions contemplated by this Agreement
shall be reasonably satisfactory to each Bank, and each Bank shall have received
all such counterpart originals or certified or other copies of this Agreement
and the other the Transaction Documents and such other documents and proceedings
in connection with such transactions, in form and substance satisfactory to it,
as such Bank has reasonably requested.

         (e) Fees and Expenses. Each Credit Party shall have paid all fees and
other compensation to be paid by it hereunder, or with respect to the
transactions contemplated hereby, on or prior to the Closing Date.

         (f) Representation and Warranties. The representations and warranties
contained in Article III hereof shall be true on and as of the Closing Date with
the same effect as though made on and as of the Closing Date.


                                      -35-
<PAGE>   37
         (g) Letter of Credit Agreement. The Continuing Letter of Credit
Agreement shall have been delivered to the Administrative Agent and the Issuing
Bank, duly executed by each Account Party.

         (h) Other Certificates, Opinions or Documents. There shall have been
delivered to the Administrative Agent with sufficient copies for each Bank such
other certificates, opinions or documents as may be reasonably requested by the
Co-Arrangers.

         (i) Licenses; Regulatory Approvals. Each Credit Party shall have
obtained all licenses and regulatory approvals, if any, which are necessary to
complete the transactions contemplated by this Agreement and the other
Transaction Documents.

         4.02. Issuance of Letters of Credit. The obligation of the Issuing Bank
to issue any Letters of Credit hereunder is subject to the accuracy as of the
date hereof of the representations and warranties herein contained, to the
performance by each Credit Party of its obligations to be performed hereunder on
or before the date of such Letters of Credit and to the satisfaction of the
following further conditions:

         (a) Representations and Warranties; Events of Default and Unmatured
Defaults. The representations and warranties contained in Article III hereof
shall be true on and as of the date of each Letter of Credit issued hereunder
with the same effect as though made on and as of each such date, and on the date
of each Letter of Credit issued hereunder no Default and no Unmatured Default
shall have occurred and be continuing or exist or shall occur or exist after
giving effect to the Letter of Credit to be issued on such date. Failure of the
Administrative Agent to receive notice from the applicable Credit Party to the
contrary before any Letter of Credit is issued hereunder shall constitute a
representation and warranty that: (i) the representations and warranties
contained in Article III hereof are true and correct on and as of the date of
such Letter of Credit with the same effect as though made on and as of such date
and (ii) on the date of such Letter of Credit no Default or Unmatured Default
has occurred and is continuing or exists or will occur or exist after giving
effect to such Letter of Credit.

         (b) Commitment. The fact that, immediately after the issuance of such
Letter of Credit, the aggregate outstanding Stated Amounts (determined as Dollar
Equivalents) of the Letters of Credit issued and outstanding hereunder will not
exceed the aggregate amount of the Letter of Credit Participating Interest
Committed Amounts.



                                    ARTICLE V

                                    GUARANTEE


         5.01. The Guarantee. Each of the Guarantors hereby irrevocably,
unconditionally and absolutely guarantees to the Agents, the Issuing Bank and
the Banks, and becomes surety for, the prompt payment of the Obligations of the
Account Parties (the "Guaranteed Obligations") in full when due (whether at
stated maturity, by acceleration, or otherwise) strictly in accordance with the
terms thereof. Each Guarantor hereby further agrees, as a primary obligor, that
if any of the Guaranteed Obligations are not paid in full when due (whether at
stated maturity, by acceleration, or otherwise and whether or not such payments
would not be permitted under any applicable bankruptcy or similar law), the
Guarantor will promptly pay the same, without any demand or notice whatsoever
(except as expressly provided herein), and that in the case of any extension of
time of payment or renewal of any of the Guaranteed Obligations, the same will
be promptly paid in full when due (whether at extended maturity, by acceleration
or otherwise) in accordance with the terms of such extension or renewal.

Notwithstanding any provision to the contrary contained herein or in any other
of the Transaction Documents, to the extent the obligations of either Guarantor
shall be adjudicated to be invalid or 


                                      -36-
<PAGE>   38
unenforceable for any reason (including, without limitation, because of any
applicable law, including the insolvency laws, relating to fraudulent
conveyances or transfers) then the obligations of such Guarantor hereunder
automatically shall be limited to the maximum amount that is permissible under
applicable law.

         5.02. Obligations Unconditional. The obligations of each Guarantor
under this Article are irrevocable, absolute and unconditional (to the fullest
extent permitted by applicable law), irrespective of the value, genuineness,
validity, regularity or enforceability of any of the Transaction Documents, or
any other agreement or instrument referred to therein, or any substitution,
release or exchange of any other guarantee of or security for any of the
Guaranteed Obligations, and, to the fullest extent permitted by applicable law,
irrespective of any other circumstance whatsoever which might otherwise
constitute a legal or equitable discharge or defense of a surety or guarantor,
it being the intent of this Article that the obligations of each Guarantor
hereunder shall be absolute and unconditional under any and all circumstances.
Each Guarantor agrees that such Guarantor shall have no right of subrogation,
indemnity, reimbursement or contribution against any Account Party, for amounts
paid under this Article V until such time as the Banks have been paid in full,
no Letter of Credit is outstanding, the Letter of Credit Participating Interest
Commitments under this Agreement have been terminated and no Person or Official
Body shall have any right to request any return or reimbursement of funds from
any Bank in connection with monies received under the Transaction Documents.
Without limiting the generality of the foregoing, it is agreed that, to the
fullest extent permitted by applicable law, the occurrence of any one or more of
the following shall not alter or impair the liability of either Guarantor
hereunder which shall remain irrevocable, absolute and unconditional as
described above:

                  (i) at any time or from time to time, without notice to the
         Guarantors, the time for any performance of or compliance with any of
         the Guaranteed Obligations shall be extended, or such performance or
         compliance shall be waived;

                  (ii) any of the acts mentioned in any of the provisions of any
         of the Transaction Documents, or any other agreement or instrument
         referred to in the Transaction Documents shall be done or omitted;

                  (iii) the maturity of any of the Guaranteed Obligations shall
         be accelerated, or any of the Guaranteed Obligations shall be modified,
         supplemented or amended in any respect, or any right under any of the
         Transaction Documents, or any other agreement or instrument referred to
         in the Transaction Documents shall be waived or any other guarantee of
         any of the Guaranteed Obligations or any security therefor shall be
         released or exchanged in whole or in part or otherwise dealt with;

                  (iv) any Lien granted to, or in favor of, any Agent or any
         Bank as security for any of the Guaranteed Obligations shall be void or
         violable, or shall fail to attach or be perfected or any Agent or any
         Bank shall fail to realize on any collateral security; or

                  (v) any of the Guaranteed Obligations shall be determined to
         be void or voidable (including, without limitation, for the benefit of
         any creditor of either Guarantor) or shall be subordinated to the
         claims of any Person (including, without limitation, any creditor of
         either Guarantor).

With respect to its obligations hereunder, each Guarantor hereby expressly
waives diligence, presentment, demand of payment, protest and all notices
whatsoever (except notices expressly required hereunder), and any requirement
that the Banks exhaust any right, power or remedy or proceed against any Person
under any of the Transaction Documents, or any other agreement or instrument
referred to in the Transaction Documents, or against any other Person under any
other guarantee of, or security for, any of the Guaranteed Obligations. This is
a guarantee of payment and not merely of collection.


                                      -37-
<PAGE>   39
         5.03. Reinstatement. The obligations of the Guarantors under this
Article shall be automatically reinstated if and to the extent that for any
reason any payment by or on behalf of any Person in respect of the Guaranteed
Obligations is rescinded or must be otherwise restored by any holder of any of
the Guaranteed Obligations, whether as a result of any proceedings in
bankruptcy, receivership, or reorganization or otherwise, and each Guarantor
agrees that it will indemnify the Agents and the Banks on demand for all
reasonable out-of-pocket costs and expenses (including, without limitation,
reasonable fees and expenses of counsel) incurred by any Agent or any Bank in
connection with such rescission or restoration, including any such reasonable
costs and expenses incurred in defending against any claim alleging that such
payment constituted a preference, fraudulent transfer or similar payment under
any bankruptcy, insolvency, receivership, reorganization or similar law.

         5.04. Remedies. Each Guarantor agrees that, to the fullest extent
permitted by applicable law, as between such Guarantor, on the one hand, and the
Agents and the Banks, on the other hand, the Guaranteed Obligations may be
declared to be forthwith due and payable as provided in Section 7.01 hereof (and
shall be deemed to have become automatically due and payable in the
circumstances provided in said Section 7.01) for purposes of Section 5.01 hereof
notwithstanding any stay, injunction or other prohibition preventing such
declaration (or preventing the Guaranteed Obligations from becoming
automatically due and payable) as to any other Person and that, in the event of
such declaration (or Guaranteed Obligations being deemed to have become
automatically due and payable), the Guaranteed Obligations (whether or not due
and payable by any other Person) shall forthwith become due and payable by such
Guarantor for purposes of said Section 5.01.

         5.05. Continuing Guarantee. The guarantee in this Article is a
continuing guarantee, and shall apply to all of the Guaranteed Obligations
whenever arising.

         5.06. No Restrictions. Except for restrictions under the Transaction
Documents, neither Guarantor shall be or become subject to any restriction of
any nature (whether arising by operation of Law, by agreement, by its articles
of incorporation, by-laws or other constituent documents of such Guarantor, or
otherwise) on the right of such Guarantor from time to time to (x) pay any
indebtedness, obligations or liabilities from time to time owed to any Account
Party, (y) make loans or advances to my Account Party, or (z) transfer any of
its properties or assets to my Account Party.

                                   ARTICLE VI

                                    COVENANTS

                  During the term of this Agreement, unless the Required Banks
shall otherwise consent in writing:

                  6.01. Financial Reporting. Each Credit Party will maintain,
for itself and each Subsidiary, a system of accounting established and
administered in accordance with generally accepted accounting principles,
consistently applied, and will furnish to the Banks:

                  (a) As soon as practicable and in any event within 90 days
after the close of each of its Fiscal Years, an unqualified (except for
qualifications relating to changes in accounting principles or practices
reflecting changes in generally accepted accounting principles and required or
approved by the independent certified public accountants of URGI or of Venton,
as the case may be) audit report certified by independent certified public
accountants, acceptable to the Banks, prepared in accordance with Agreement
Accounting Principles on a consolidated and consolidating basis (consolidating
statements need not be certified by such accountants) for URGI and its
Subsidiaries and for Venton and its Subsidiaries, including balance sheets as of
the end of such period and related statements of income, retained earnings and
cash flows accompanied by (i) any control letter prepared by said accountants
addressed to the audit committee of the board of directors of URGI or Venton, as
the case may be, (ii) a certificate of said accountants that, in the course of
the examination necessary for their certification of the 


                                      -38-
<PAGE>   40
foregoing. they have obtained no knowledge of any Default or Unmatured Default,
or if in the opinion of such accountants, any Default or Unmatured Default shall
exist, stating the nature and status thereof and (iii) a letter from said
accountants addressed to the Banks acknowledging that the Banks are relying on
such certificate as part of their credit consideration of the transactions
hereby contemplated and authorizing such reliance.

                  (b) As soon as practicable and in any event within 45 days
after the close of the first three Fiscal Quarters of each of its Fiscal Years,
commencing September 30, 1998, for URGI and its Subsidiaries, consolidated and
consolidating unaudited balance sheets as at the close of each such period and
consolidated and consolidating statements of income, retained earnings and cash
flows for the period from the beginning of such Fiscal Year to the end of such
quarter, all certified by its chief financial officer.

                  (c) (i) Upon the earlier of (A) fifteen days after the
regulatory filing date or (B) 75 days after the close of each Fiscal Year of
each Insurance Subsidiary, copies of the unaudited Annual Statement of such
Insurance Subsidiary, certified by the chief financial officer of such Insurance
Subsidiary, all such statements to be prepared in accordance with SAP and (ii)
no later than each June 15, copies of such Annual Statements audited and
certified by independent certified public accountants of recognized annual
standing.

                  (d) Upon the earlier of (i) ten days after the regulatory
filing date or (ii) 60 days after the close of each of the first three Fiscal
Quarters of each Fiscal Year of each Insurance Subsidiary, copies of the
Quarterly Statement of each of the Insurance Subsidiaries, certified by the
chief financial officer of such Insurance Subsidiary, all such statements to be
prepared in accordance with SAP.

                  (e) Promptly and in any event within ten days after (i)
learning thereof, notification of any changes after the date hereof in the
rating given by (A) A.M. Best & Co. or Standard & Poor's in respect of any
Insurance Subsidiary or (B) Standard & Poor's or Moody's in respect of the
senior Indebtedness of any Credit Party and (ii) receipt thereof, copies of any
ratings analysis by (A) A.M. Best & Co. or Standard & Poor's relating to any
Insurance Subsidiary or (B) Standard & Poor's or Moody's in respect of the
senior Indebtedness of any Credit Party.

                  (f) Copies of any actuarial certificates prepared with respect
to any Insurance Subsidiary by an employee of or an actuary engaged by such
Insurance Subsidiary, promptly after the receipt thereof.

                  (g) As soon as available but in any event not later than the
last Business Day in February of each year, a copy of the plan and forecast
(including a projected consolidated and consolidating balance sheet, income
statement and funds flow statement) of URGI and its Subsidiaries for such Fiscal
Year.

                  (h) Together with the financial statements required by clauses
(a) and (b) above, a compliance certificate in substantially the form of Exhibit
D hereto signed by the chief financial officer of URGI showing the calculations
necessary to determine compliance with this Agreement and stating that no
Default or Unmatured Default exists, or if any Default or Unmatured Default
exists, stating the nature and status thereof.

                  (i) Within 270 days after the close of each Fiscal Year, a
statement of the Unfunded Liabilities of each Single Employer Plan, if any,
certified as correct by an actuary enrolled under ERISA.

                  (j) As soon as possible and in any event within ten days after
any Credit Party knows that any Termination Event has occurred with respect to
any Plan, a statement, signed by the chief financial officer of URGI, describing
said Termination Event and the action which such Credit Party proposes to take
with respect thereto and as soon as possible and in any event within ten days
after learning thereof notification of any lien imposed by the PBGC or the IRS
on the assets of any member of the Controlled


                                      -39-
<PAGE>   41
Group in respect of any Plan maintained by any such member (or any other
employee pension benefit plan as to which any such member may be liable) which
relates to liabilities in excess of ten percent of the net worth (determined
according to generally accepted accounting principles and without reduction for
any reserve for such liabilities) of Alleghany and its Subsidiaries.

                  (k) As soon as possible and in any event within ten days after
receipt by any Credit Party, a copy of (i) any notice, claim, complaint or order
to the effect that a Credit Party or any of its Subsidiaries is or may be liable
to any Person as a result of the release by such Credit Party, any of its
Subsidiaries, or any other Person of any Hazardous Materials into the
environment or requiring that action be taken to respond to or clean up a
Release of Hazardous Materials into the environment. and (ii) any notice,
complaint or citation alleging any violation of any Environmental Law or
Environmental Permit by such Credit Party or any of its Subsidiaries. Within ten
days of any Credit Party or any Subsidiary having knowledge of the proposal,
enactment or promulgation of any Environmental Law which could reasonably be
expected to have a Material Adverse Effect, URGI or URC shall provide the
Administrative Agent with written notice thereof.

                  (1) Promptly upon the filing thereof, copies of all
registration statements and annual, quarterly, monthly or other regular reports
which any Credit Party or any of its Subsidiaries files with the NAIC or any
insurance commission or department or analogous Governmental Authority
(including without limitation, any filing made by any Credit Party or any
Subsidiary pursuant to any insurance holding company act or related rules or
regulations), but excluding routine or non-material filings with the NAIC, any
insurance commissioner or department or analogous Governmental Authority.

                  (m) Promptly and in any event within ten days after learning
thereof, notification of (i) any tax assessments demand, notice of proposed
deficiency or notice of deficiency received by Alleghany or any other
Consolidated Person or (ii) the filing of any tax Lien or commencement of any
judicial proceeding by or against any such Consolidated Person, of any such
assessment, demand, notice, Lien or judicial proceeding relates to tax
liabilities in excess of ten percent (10%) of the net worth (determined
according to generally accepted accounting standards and without reduction for
any reserve for such liabilities) of Alleghany and its Subsidiaries taken as a
whole.

                  (n) Such other information (including, without limitation, the
annual Best's Advance Report Service report prepared with respect to each
Insurance Subsidiary rated by A.M. Best & Co.) as any Agent or any Bank may from
time to time reasonably request.

                  6.02. Use of Proceeds. Each Account Party will, and will cause
each Subsidiary to, use the Letters of Credit issued hereunder for its general
corporate purposes. The Account Parties will not permit the issuance of any
Letter of Credit in connection with the purchase or carrying of any Margin Stock
or in connection with the Purchase of any Person which has not been approved and
recommended by the board of directors (or functional equivalent thereof) of such
Person.

                  6.03. Notice of Default. The Credit Parties will, and will
cause each Subsidiary to, give prompt notice in writing to the Banks of (a) the
occurrence of any Default or Unmatured Default, (b) the occurrence of any other
development, financial or other, relating specifically to any Credit Party or
any of its Subsidiaries (and not of a general economic or political nature)
which could reasonably be expected to have a Material Adverse Effect, (c) the
receipt of any notice from any Governmental Authority of the expiration without
renewal, revocation or suspension of or the institution of any proceedings to
revoke or suspend any License now or hereafter held by any Insurance Subsidiary
which is required to conduct insurance business in compliance with all
applicable laws and regulations and the expiration, revocation or suspension of
which could reasonably be expected to have a Material Adverse Effect, (d) the
receipt of any notice from any Governmental Authority of the institution of any
disciplinary proceedings against or in respect of any Insurance Subsidiary, or
the issuance of any order, the taking of any action or any request for an
extraordinary audit for cause by any Governmental Authority which, if adversely
determined, could reasonably be expected to have a Material Adverse Effect, (e)
any judicial or


                                      -40-
<PAGE>   42
administrative order limiting or controlling the insurance business of any
Insurance Subsidiary (and not the insurance industry generally) which has been
issued or adopted and which has had, or could reasonably be expected to have, a
Material Adverse Effect, or (f) the commencement of any litigation which could
reasonably be expected to create a Material Adverse Effect.

                  6.04. Conduct of Business. Each Credit Party will, and will
cause each Subsidiary to, (a) carry on and conduct its business only in
substantially the same manner as it is presently conducted, (b)(i) with respect
to URGI, only engage in the business of a holding company owning entities
engaged in the business of insurance or reasonably incidental activities, (ii)
with respect to each Insurance Subsidiary, only engage in the insurance business
in which it is engaged or licensed as of the date hereof if it is an Insurance
Subsidiary as of such date, or as of the date of its Purchase, if hereafter
acquired, or only engage in the insurance business for which it is formed, if
hereafter formed, and (iii) with respect to each other Subsidiary, only engage
in the business in which it is engaged as of the date hereof if it is a
Subsidiary as of such date, or as of the date of its Purchase if hereafter
acquired, or only engage in the business for which it is formed, if hereafter
formed, (c) do all things necessary to remain duly incorporated, validly
existing and in good standing in its jurisdiction of incorporation and its
jurisdiction of domicile and maintain all requisite qualification to conduct
business in each other jurisdiction in which such qualification is required,
except where the failure to maintain such qualification could not reasonably be
expected to have a Material Adverse Effect, and (d) do all things necessary to
renew, extend and continue in effect all Licenses which may at any time and from
time to time be necessary for any Insurance Subsidiary to operate its insurance
business in compliance with all applicable laws and regulations; provided, that
(i) any Insurance Subsidiary may withdraw from one or more states (other than
its state of domicile) as an admitted insurer if such withdrawal is determined
by the board of directors or management of such Insurance Subsidiary to be in
the best interest of such Insurance Subsidiary and could not reasonably be
expected to have a Material Adverse Effect and (ii) any Subsidiary that is not
actively engaged in business may be dissolved, if such dissolution is determined
by URGI's board of directors to be in the best interest of the Credit Parties
and could not reasonably be expected to have a Material Adverse Effect. No
Insurance Subsidiary shall change its state of domicile or incorporation without
the prior written consent of the Required Banks. Each Wholly-Owned Subsidiary in
existence as of the date of this Agreement shall continue to be a Wholly-Owned
Subsidiary except as permitted by Section 6.12. It is understood that a merger
of a Subsidiary of URC into an entity which is a Wholly-Owned Subsidiary of URC,
to the extent otherwise permitted by this Agreement, will not be deemed to
violate this Section 6.04. It is also understood that a merger of a Subsidiary
of URGI (which is not a Subsidiary of URC) into an entity which is a
Wholly-Owned Subsidiary of URGI, to the extent otherwise permitted by this
Agreement, will not be deemed to violate this Section 6.04.

                  6.05. Taxes. Each Credit Party will, and will cause each
Subsidiary to, timely file United States federal and applicable foreign, state
and local tax returns required to be filed by it that are true and correct in
all material respects, and each of each Credit Party, their respective
Subsidiaries, Alleghany and each other Consolidated Person will pay when due all
taxes, assessments and governmental charges and levies upon it or its income,
profits or Property, except, in each case those which are being contested in
good faith by appropriate proceedings and with respect to which adequate
reserves have been set aside in accordance with generally accepted accounting
principles or SAP, as applicable.

                  6.06. Insurance. Each Credit Party will, and will cause each
Subsidiary to, maintain insurance on all their Property with such companies, in
such amounts and covering such risks as is, in each case, consistent with sound
business practice, and the Credit Parties will furnish to any Agent and any Bank
upon request all information as to the insurance carried.

                  6.07. Compliance with Laws. Each Credit Party will, and will
cause each Subsidiary to, comply with all laws, rules, regulations, orders,
writs, judgments, injunctions, decrees or awards to which it may be subject, the
failure to comply with which could reasonably be expected to have a Material
Adverse Effect.


                                      -41-
<PAGE>   43
                  6.08. Maintenance of Properties; Year 2000 Compliance. (a)
Each Credit Party will, and will cause each Subsidiary to, do all things
necessary to maintain, preserve, protect and keep its Property in good repair,
working order and condition except for ordinary wear and tear, and make all
necessary and proper repairs, renewals and replacements so that its business
carried on in connection therewith may be properly conducted at all times;
provided, that any Credit Party or any Subsidiary may, subject to Section 6.13,
dispose of any Property that such Person deems unnecessary for the conduct of
its business.

                  (b) Each Credit Party shall take all actions necessary and
commit adequate resources to assure that its computer-based and other systems
(and those of all Subsidiaries) are able to effectively process data, including
dates before, on and after January 1, 2000, without experiencing any Year 2000
Problem that could reasonably be expected to cause a Material Adverse Effect. At
the request of the Administrative Agent, each Credit Party will provide the
Administrative Agent with assurances and substantiations (including, but not
limited to, the results of internal or external audit reports prepared in the
ordinary course of business) reasonably acceptable to the Required Banks as to
the capability of the such Credit Party and its Subsidiaries to conduct its and
their businesses and operations before, on and after January 1, 2000 without
experiencing a Year 2000 Problem causing a Material Adverse Effect.


                  6.09. Inspection. Each Credit Party will, and will cause each
Subsidiary to, permit the Agents and the Banks, by their respective
representatives and agents, to inspect any of the Property, corporate books and
financial records of such Credit Party and each Subsidiary, to examine and make
copies of the books of accounts and other financial records of the such Credit
Party and each Subsidiary, and to discuss the affairs, finances and accounts of
such Credit Party and each Subsidiary with, and to be advised as to the same by,
their respective officers at such reasonable times and intervals as the Banks
may designate. Each Credit Party will keep or cause to be kept, and cause each
Subsidiary to keep or cause to be kept, appropriate records and books of account
in which complete entries are to be made reflecting its and their business and
financial transactions, such entries to be made in accordance with Agreement
Accounting Principles or SAP, as applicable, consistently applied.

                  6.10. Capital Stock and Dividends. No Credit Party will, nor
will it permit any Subsidiary to, (a) issue any capital stock or equity
securities of any kind if as a result thereof a Change in Control would occur,
or (b) declare or pay any dividends or make any distributions on its capital
stock (other than dividends payable in its own capital stock) or redeem,
repurchase or otherwise acquire or retire any of its capital stock or any
options or other rights in respect thereof at any time outstanding if a Default
or Unmatured Default has occurred and is continuing or would occur after giving
effect thereto (determined with respect to the covenants set forth in Section
6.22 on a pro forma basis as of the last day of the immediately preceding Fiscal
Quarter), except that any Subsidiary of URC may declare and pay dividends or
make distributions to URC or any Wholly-Owned Subsidiary or URC.

                  6.11. Indebtedness. No Credit Party will, nor will it permit
any Subsidiary to, create, incur or suffer to exist any Indebtedness, except:

                  (a) the Obligations;

                  (b) Indebtedness existing (or committed to) on the date hereof
and described in Schedule 3.24 hereto;

                  (c) Rate Hedging Obligations related to the loans described in
item 3 of Schedule 3.24;

                  (d) Contingent Obligations permitted pursuant to Section 6.15;
and

                  (e) additional Indebtedness of URGI in an aggregate principal
amount not exceeding $25,000,000, so long as no Default or Unmatured Default has
occurred and is continuing or would occur 


                                      -42-
<PAGE>   44
after giving effect to the incurrence of such Indebtedness (determined with
respect to the covenants set forth in Section 6.22 on a pro forma basis as of
the last day of the immediately preceding Fiscal Quarter).

                  6.12. Merger. No Credit Party will, nor will it permit any
Subsidiary to, merge or consolidate with or into any other Person except that
(a) a Wholly-Owned Subsidiary of URC may merge into URC or any Wholly-Owned
Subsidiary of URC and (b) any Subsidiary formed for the purpose of effecting a
transaction permitted under Section 6.14(a)(iv) or (b)(v) may merge with another
entity if required to consummate such transaction.

                  6.13. Sale of Assets. No Credit Party will, nor will it permit
any Subsidiary to, lease, sell, transfer or otherwise dispose of its Property to
any other Person except for (a) sales of Investments in the ordinary course of
business by a Credit Party or any Insurance Subsidiary, including without
limitation, transactions undertaken for the purpose of restructuring all or a
part of the portfolio of Investments owned by such Credit Party or Insurance
Subsidiary and (b) leases, sales, transfers or other dispositions of its
Property that together with all other Property of its Subsidiaries previously
leased, sold or disposed of (other than Investments sold in the ordinary course
of business by Insurance Subsidiaries) as permitted by this Section 6.13 since
the date hereof do not constitute a Substantial Portion of the Property of URGI
and its Subsidiaries.

                  6.14. Investments and Purchases. (a) URGI will not, and will
not permit any Subsidiary or other Credit Party which is not an Insurance
Subsidiary to, make or suffer to exist any Investments (including, without
limitation, loans and advances to, and other Investments in, Subsidiaries), or
commitments therefor, or to create any Subsidiary or to become or remain a
partner in any partnership or joint venture, or to make any Purchases, except:

                           (i)  Cash and Cash Equivalents;

                           (ii) Investments in existence as of October 23, 1998
                  (including Investments in Subsidiaries as of such date) and
                  described in Schedule 6.14 hereto;

                           (iii) Investments in debt securities rated BBB- or
                  better by Standard & Poor's, Baa-3 or better by Moody's or
                  NAIC-2 or better by the NAIC; provided, that any such
                  Investment which, at any time after which it is made, ceases
                  to meet such rating requirements shall (A) cease to be
                  permitted hereby if then permitted by Section 6.14(a)(vi) and
                  (B) if not then permitted by Section 6.14(a)(vi) remain
                  permitted hereby until the earlier of the time it is permitted
                  under Section 6.14(a)(vi) and the date which is 30 days after
                  the date on which such rating requirement is no longer met;

                           (iv) Purchases of businesses or entities engaged in
                  the insurance business or businesses reasonably incident
                  thereto which do not constitute hostile takeovers (including
                  the creation of Subsidiaries in connection therewith) so long
                  as no Default or Unmatured Default has occurred and is
                  continuing or would occur after giving effect to such Purchase
                  or creation (determined with respect to the covenants set
                  forth in Section 6.22 on a pro forma basis as of the last day
                  of the immediately preceding Fiscal Quarter);

                           (v) Other Investments by URGI in any Person which is
                  a Subsidiary as of the date hereof so long as no Default or
                  Unmatured Default has occurred and is continuing or would
                  occur after giving effect to such investment (determined with
                  respect to the covenants set forth in Section 6.22 on a pro
                  forma basis as of the last day of the immediately preceding
                  Fiscal Quarter); and

                           (vi) Other Investments by URGI in an amount not
                  exceeding $40,000,000 (including the creation of Subsidiaries
                  and Investments therein and Investments in any 


                                      -43-
<PAGE>   45
                  partnership or joint venture) so long as at the time of such
                  Investment no Default or Unmatured Default has occurred and is
                  continuing or would occur after giving effect to such
                  Investment (determined with respect to the covenants set forth
                  in Section 6.22 on a pro forma basis as of the last day of the
                  immediately preceding Fiscal Quarter).

                  (b) The Credit Parties will not permit any Insurance
Subsidiary to make or suffer to exist any Investments (including, without
limitation, loans and advances to and other Investments in Subsidiaries), or
commitments therefor, or to create any Subsidiary or to become or remain a
partner in any partnership or joint venture or to make any Purchases, except:

                           (i)  Cash and Cash Equivalents;

                           (ii) Investments in debt securities rated BBB- or
                  better by Standard & Poor's, Baa-3 or better by Moody's or
                  NAIC-2 or better by the NAIC, provided, that any such
                  Investment which. at any time after which it is made, ceases
                  to meet such rating requirements shall (A) cease to be
                  permitted hereby if then permitted by Section 6.14(b)(vi) and
                  (B) if not then permitted by Section 6.14(b)(vi) remain
                  permitted hereby until the earlier of the time it is permitted
                  under Section 6.14(b)(vi) and the date which is 30 days after
                  the date on which such rating requirement is no longer met;

                           (iii) Existing Investments in Subsidiaries and other
                  Investments in existence on the date hereof;

                           (iv) Other Investments in any Person which is a
                  Subsidiary as of the date hereof so long as no Default or
                  Unmatured Default has occurred and is continuing or would
                  occur after giving effect to such Investment (determined with
                  respect to the covenants set forth in Section 6.22 on a pro
                  forma basis as of the last day of the immediately preceding
                  Fiscal Quarter);

                           (v) Purchases of businesses or entities engaged in
                  the insurance business which do not constitute hostile
                  takeovers (including the creation of Subsidiaries in
                  connection therewith) made after the date of this Agreement
                  for an aggregate consideration not to exceed $50,000,000, so
                  long as no Default or Unmatured Default has occurred and is
                  continuing or would occur after giving effect thereto
                  (determined with respect to the covenants set forth in Section
                  6.22 on a pro forma basis as of the last day of the
                  immediately preceding Fiscal Quarter); and

                           (vi) Other Investments (including the creation of
                  Subsidiaries and Investments therein and Investments in any
                  partnership or joint venture but excluding any Investment of
                  the type described in clause (b)(v) above) of a type
                  acceptable to the insurance commissioner in the respective
                  domiciliary state of such Insurance Subsidiary, provided, that
                  such Investments do not exceed, in the aggregate at any one
                  time outstanding, an amount equal to the Total Admitted Assets
                  (as presented on the "Assets" statement, currently Page 2,
                  Line 22 of the Annual Statement-1997) of all Insurance
                  Subsidiaries (determined, where applicable, on a combined
                  basis by reference to the comparable line in the combined
                  Annual Statement) less 125% of the aggregate Total Required
                  Liabilities (as presented on the "Liabilities, Surplus and
                  Other Funds" statement, currently Page 3, Line 21 of the
                  Annual Statement-1997) of all Insurance Subsidiaries
                  (determined, where applicable, on a combined basis by
                  reference to the comparable line in the combined Annual
                  Statement); provided, further, that the fair market value of
                  the Investment in Burlington Northern Santa Fe Corporation
                  held by URGI and its Insurance Subsidiaries shall be
                  subtracted from such amount for so long as such Investment
                  exists.


                                      -44-
<PAGE>   46
                  6.15. Contingent Obligations. No Credit Party will, nor will
it permit any Subsidiary to, make or suffer to exist any Contingent Obligation
(including, without limitation, any Contingent Obligation with respect to the
obligations of a Subsidiary), except (a) the Contingent Obligations described on
Schedule 3.24, (b) Contingent Obligations in respect of insurance contracts or
policies issued in the ordinary course of business, (c) Contingent Obligations
in respect of the extension of guaranties in the ordinary course of business to
insureds of the obligations of insurers under insurance policies or contracts,
(d) Contingent Obligations in respect of the endorsement of instruments for
deposit or collection in the ordinary course of business and (e) the
Obligations.

                  6.16. Liens. No Credit Party will, nor will it permit any
Subsidiary to, create, incur, or suffer to exist any Lien in, of or on the
Property of such Credit Party or any of its Subsidiaries, except Liens in favor
of the Bank Parties to secure obligations hereunder and except:

                  (a) Liens for taxes, assessments or governmental charges or
levies on its Property if the same shall not at the time be delinquent or
thereafter can be paid without penalty, or are being contested in good faith and
by appropriate proceedings and for which adequate reserves in accordance with
generally accepted principles of accounting or SAP, as applicable, shall have
been set aside on its books;

                  (b) Liens imposed by law, such as carriers', warehousemen's
and mechanics' liens and other similar liens arising in the ordinary course of
business which secure the payment of obligations not more than 60 days past due
or which are being contested in good faith by appropriate proceedings and for
which adequate reserves shall have been set aside on its books;

                  (c) Liens arising out of pledges or deposits under worker's
compensation laws, unemployment insurance, old age pensions, or other social
security or retirement benefits, or similar legislation;

                  (d) Utility easements, building restrictions and such other
encumbrances or charges against real property as are of a nature generally
existing with respect to properties of a similar character and which do not in
any material way affect the marketability of the same or interfere with the use
thereof in the business of such Credit Party or its Subsidiaries;

                  (e) Deposits made by any Insurance Subsidiary with the
insurance regulatory authority in its jurisdiction of domicile or other
statutory liens or liens or claims imposed or required by applicable insurance
law or regulation against the assets of any Insurance Subsidiary, in each case
in favor of all policyholders of such Insurance Subsidiary and in the ordinary
course of such Insurance Subsidiary's business;

                  (f) Rights of third parties with respect to amounts deposited
with or for the benefit of any Insurance Subsidiary in trust to secure
obligations owed to any Insurance Subsidiary under contracts of reinsurance
entered into in the ordinary course of such Insurance Subsidiary's business;

                  (g) Liens existing on the date hereof and described in
Schedule 6.16 hereto; and

                  (h) Other Liens securing Indebtedness or obligations with an
aggregate principal amount not in excess of $1,000,000 at any time outstanding.

                  6.17. Affiliates. No Credit Party will, nor shall it permit
any Subsidiary to, enter into any transaction (including, without limitation,
the purchase or sale of any Property or service) with, or make any payment or
transfer to, any Affiliate of such Credit Party (other than URC Barbados Holding
Corp. and entities owned by it) except in the ordinary course of business and
pursuant to the reasonable requirements of such Credit Party's or such
Subsidiary's business and upon fair and reasonable terms no less favorable to
such Credit Party or such Subsidiary than the Credit Party or such Subsidiary
would obtain in a comparable arm's-length transaction.


                                      -45-
<PAGE>   47
                  6.18. Other Indebtedness. No Credit Party will, nor will it
permit any Subsidiary to, directly or indirectly voluntarily prepay, defease or
in substance defease, purchase, redeem, retire or otherwise acquire, any
Indebtedness prior to the date when due (other than the Obligations) while a
Default or Unmatured Default has occurred and is continuing.

                  6.19. Environmental Matters. Each Credit Party shall and shall
cause each of its Subsidiaries to (a) at all times comply in all material
respects with all applicable Environmental Laws and (b) promptly take any and
all commercially reasonable transactions in response to the presence, storage,
use, disposal, transportation or Release of any Hazardous Materials on, under or
about any real property owned, leased or operated by such Credit Party or any of
its Subsidiaries.

                  6.20. Change in Corporate Structure; Fiscal Year. No Credit
Party shall, nor shall it permit any Subsidiary to, (a) permit any amendment or
modification to be made to its certificate or articles of incorporation or
by-laws which is materially adverse to the interests of the Banks (provided that
such Credit Party shall notify the Administrative Agent of any other amendment
or modification thereto as soon as practicable thereafter) or (b) change its
Fiscal Year to end on any date other than December 31 of each year.

                  6.21. Inconsistent Agreements. No Credit Party shall, nor
shall it permit any Subsidiary to, enter into any indenture, agreement,
instrument or other arrangement which, (a) directly or indirectly prohibits or
restrains, or has the effect of prohibiting or restraining, or imposes
materially adverse conditions upon, the incurrence of the Obligations, the
amending of the Transaction Documents or the ability of any Subsidiary to (i)
pay dividends or make other distributions on its capital stock, (ii) make loans
or advances to a Credit Party of which it is a Subsidiary or (iii) repay loans
or advances from a Credit Party or (b) contains any provision which would be
violated or breached by the issuance of Letters of Credit or by the performance
by any Credit Party of any of its obligations under any Loan Document.

                  6.22.  Financial Covenants.  The Credit Parties shall:

                  (a) Minimum Statutory Surplus. At all times after the date
hereof, cause URC and its Insurance Subsidiaries, as determined on a combined
basis for URC and all of its Insurance Subsidiaries (without double counting) as
of the last day of each Fiscal Quarter, to maintain a minimum Statutory Surplus
at least equal to the sum of (i) $555,000,000, plus (ii) 100% of any capital
contributions made to URC or to any of its Insurance Subsidiaries after June 30,
1998 (without double counting), plus (iii) 35% of positive Statutory Net Income,
if any, for each Fiscal Quarter ending after January 1, 1999, and on or prior to
the time of determination.

                  (b) Leverage Ratio. At all times after the date hereof
determined as of the end of each Fiscal Quarter, cause URGI and its Subsidiaries
to maintain a Leverage Ratio of not more than 0.50 to 1.0

                  (c) Adjusted Leverage Ratio. At all times after the date
hereof determined as of the end of each Fiscal Quarter cause URGI and its
Subsidiaries to maintain an Adjusted Leverage Ratio of not more than 0.35 to
1.0.

                  (d) URC Risk-Based Capital Ratio. At all times after the date
hereof determined as of the end of each Fiscal Quarter cause URC and its
Insurance Subsidiaries to maintain a Statutory Risk-Based Capital Ratio of not
less than 3.15 to 1.0.

                  6.23. Tax Consolidation. No Credit Party will, nor will it
permit any of its Subsidiaries to, file or consent to the filing of any
consolidated, combined or unitary income tax return with any Person (other than
any of its Subsidiaries, Alleghany or any other Consolidated Person), except as
required by law. No Credit Party will, nor will it permit any of its
Subsidiaries to, enter into any tax sharing agreement with any Person (other
than Alleghany, another Credit Party or any of its Subsidiaries) without the
written consent of the Required Banks. Each Credit Party will cause each


                                      -46-
<PAGE>   48
Subsidiary (including any newly acquired or newly created Subsidiary) to enter
into a tax sharing agreement with such Subsidiary's immediate parent
corporation, which tax sharing agreement shall obligate such Subsidiary to pay
to such Subsidiary's immediate parent corporation an amount of tax substantially
equal to the amount of tax such parent corporation is required to pay to
Alleghany (or to a Subsidiary of Alleghany) by reason of the taxable income of
such Subsidiary. No Tax Sharing Agreement or other agreement described above may
be amended to provide for any payments to be made to Alleghany in an amount
substantially in excess of the amount of tax which Alleghany is required to pay
by reason of the taxable income of URGI and its Subsidiaries.

                  6.24.  ERISA Compliance.

                  With respect to any Plan neither any Credit Party nor any
Subsidiary shall:

                (a) engage in any "prohibited transaction" (as such term is
defined in Section 406 of ERISA or Section 4975 of the Code) for which a civil
penalty pursuant to Section 502(i) of ERISA or a tax pursuant to Section 4975 of
the Code in excess of $1,000,000 could be imposed;

                (b) permit to be incurred any "accumulated funding deficiency"
(as such term is defined in Section 302 of ERISA) in excess of $1,000,000,
whether or not waived;

                (c) permit the occurrence of any Termination Event which could
result in a liability to any member of the Controlled Group in excess of
$1,000,000;

                (d) be an "employer" (as such term is defined in Section 3(5) of
ERISA) required to contribute to any Multiemployer Plan or a "substantial
employer" (as such term in defined in Section 4001(a)(2) of ERISA) required to
contribute to any Multiemployer Plan; or

                (e) permit the establishment, or amendment of any Plan or fail
to comply with the applicable provisions of ERISA and the Code with respect to
any Plan which could reasonably be expected to result in liability to any member
of the Controlled Group watch, individually or in the aggregate, could
reasonably be expected to have a Material Adverse Effect.



                                   ARTICLE VII

                                EVENTS OF DEFAULT


         7.01. Events of Default. The occurrence or existence of one or more of
the following events or conditions (for any reason, whether voluntary,
involuntary or effected or required by Law) shall be a Default:

         (a) Any Account Party shall default in the payment when due of any
reimbursement obligation with respect to any Letter of Credit;

         (b) Any Account Party shall default in the payment when due of any
Letter of Credit Fee, Commitment Fee, or any other fee or amount payable
hereunder which default shall continue for a period of five days from the due
date thereof;

         (c) Any Credit Party shall default in the observance, performance or
fulfillment of any covenant contained in Section 6.02, Section 6.03(a) or
Sections 6.10 through 6.24 hereof;


                                      -47-
<PAGE>   49
         (d) Any Credit Party shall default in the observance, performance or
fulfillment of any other covenant, condition or provision hereof and such
default shall not be remedied for a period of thirty days after written notice
thereof to such Credit Party from any Agent or any Bank;

         (e) The default by any Credit Party or any Subsidiary of a Credit Party
in the performance of any term, provision or condition contained in any
agreement or agreements under which any Indebtedness aggregating in excess of
$5,000,000 was created or is governed, or the occurrence of any other event or
existence of any other condition, the effect of any of which is to cause, or to
permit the holder or holders of such Indebtedness to cause, such Indebtedness to
become due prior to its stated maturity, or any such Indebtedness of a Credit
Party or any of its Subsidiaries shall be declared to be due and payable or
required to be prepaid (other than by a regularly scheduled payment) prior to
the stated maturity thereof;

         (f) Any Credit Party or any Subsidiary of a Credit Party shall (i) have
an order for relief entered with respect to it under the Federal bankruptcy laws
as now or hereafter in effect, (ii) make an assignment for the benefit of
creditors, (iii) apply for, seek, consent to, or acquiesce in, the appointment
of a receiver, custodian, trustee, examiner, liquidator or similar official for
it or any Substantial Portion of its Property, (iv) institute any proceeding
seeking an order for relief under the Federal bankruptcy laws as now or
hereafter in effect or seeking to adjudicate it a bankrupt or insolvent, or
seeking dissolution, winding up, liquidation, reorganization, arrangement,
adjustment or composition of it or its debts under any law relating to
bankruptcy, insolvency or reorganization or relief of debtors or fail to file an
answer or other pleading denying the material allegations of any such proceeding
filed against it, (v) take any corporate action to authorize or effect any of
the foregoing actions set forth in this Section 7.01(f), (vi) fail to contest in
good faith any appointment or proceeding described in Section 7.01(g) or (vii)
become unable to pay, not pay, or admit in writing its inability to pay, its
debts generally as they become due;

         (g) Without the application, approval or consent of a Credit Party or
any of its Subsidiaries, a receiver, trustee, examiner, liquidator or similar
official shall be appointed for such Credit Party or any of its Subsidiaries or
any Substantial Portion of its Property, or a proceeding described in Section
7.01(f)(iv) shall be instituted against any Credit Party or any Subsidiary or a
Credit Party and such appointment continues undischarged or such proceeding
continues undismissed or unstayed for a period of forty-five consecutive days;

         (h) Any court, government or governmental agency shall condemn, seize
or otherwise appropriate, or take custody or control of (each a "Condemnation"),
all or any portion of the Property of any Credit Party or its Subsidiaries
which, when taken together with all other Property of URGI and its Subsidiaries
so condemned, seized, appropriated, or taken custody or control of, during the
twelve-month period ending with the month in which any such Condemnation occurs,
constitutes a Substantial Portion;

         (i) Any Credit Party or any Subsidiary of a Credit Party shall fail
within thirty days to pay, bond or otherwise discharge any judgment or order for
the payment of money in excess of $500,000 (or multiple judgments or orders for
the payment of an aggregate amount in excess of $1,000,000), which is not stayed
on appeal or otherwise being appropriately contested in good faith and as to
which no enforcement actions have been commenced;

         (j) Any representation or warranty made or deemed made by or on behalf
of any Credit Party to the Banks, the Issuing Bank or the Agents under or in
connection with this Agreement or any other Transaction Document, or any
certificate or material information delivered in connection with this Agreement
or any other Transaction Document, shall prove to have been false in any
material respect on the date as of which made or deemed made;

         (k)  A Change in Control shall occur;

         (l) The guarantee contained in Article V hereof shall terminate or
cease, in whole or material part, to be a legally valid and binding obligation
of URGI or URC, or any Credit Party or any Person 


                                      -48-
<PAGE>   50
acting for or on behalf of any of such parties contests such validity or binding
nature of such guarantee, or any other Person shall assert any of the foregoing;

         (m) URC shall fail to maintain an A.M. Best claims paying rating of at
least A-;

         (n) Any material License of any Insurance Subsidiary (a) shall be
revoked by the Governmental Authority which issued such License, or any action
(administrative or judicial) to revoke such License shall have been commenced
against such Insurance Subsidiary and shall not have been dismissed within 60
days after the commencement thereof, (b) shall be suspended by such Governmental
Authority for a period in excess of 60 days or (c) shall not be reissued or
renewed by such Governmental Authority upon the expiration thereof following
application for such reissuance or renewal of such Insurance Subsidiary;

         (o) Any Insurance Subsidiary shall be the subject of a final
non-appealable order imposing a fine in an amount in excess of $250,000 in any
single instance or other such orders imposing fines in excess of $1,000,000 in
the aggregate after the date of this Agreement by or at the request of any state
insurance regulatory agency as a result of the violation by such Insurance
Subsidiary of such state's applicable insurance laws or the regulations
promulgated in connection therewith;

         (p) Any Insurance Subsidiary shall become subject to (i) any
conservation or liquidation order, directive or mandate issued by any
Governmental Authority or (ii) any other directive or mandate issued by any
Governmental Authority which could reasonably be expected to have a Material
Adverse Effect which in either case is not stayed within thirty days;

         (q) Any Credit Party, any Subsidiary of a Credit Party, Alleghany or
any other Consolidated Person shall receive any tax assessment, demand or notice
of deficiency or have any tax liens filed or any judicial proceeding relating to
any tax matter commenced against it which, in any such case, could reasonably be
expected to have a Material Adverse Effect or any tax lien shall be filed
against any property of any Credit Party or any Subsidiary relating to the tax
liabilities of any Person if the same shall not at the time be delinquent or
thereafter can be paid without penalty, or are being contested in good faith and
by appropriate proceedings and for which adequate reserves in accordance with
generally accepted principles of accounting or SAP, as applicable, shall have
been set aside on its books;

         (r) (i) the unfunded Liabilities of all Single Employer Plans
maintained by any Credit Party or any Subsidiary or a Credit Party shall exceed
in the aggregate $1,000,000 or a Reportable Event shall occur in connection with
any Plan maintained by any Credit Party or any Subsidiary or a Credit Party,
(ii) the Unfunded Liabilities of all Single Employer Plans maintained by members
of the Controlled Group shall exceed an amount which could reasonably be
expected to have a Material Adverse Effect or any Reportable Event shall occur
in connection with any Plan maintained by members of the Controlled Group which
could reasonably be expected to have a Material Adverse Effect or (iii) any Lien
shall be imposed by the PBGC or the IRS against any assets of any Credit Party
or any Subsidiary of a Credit Party with respect to a Plan maintained by any
other member of the Controlled Group (or any other employee pension benefit plan
as to which any such member may be liable);

then, the Issuing Bank shall be under no further obligation to issue Letters of
Credit hereunder and the Administrative Agent may, and upon written request of
the Required Banks shall, exercise any or all remedies available to it.

         7.02 Certain Actions in Respect of Letters of Credit upon Default. If
any Default shall have occurred and be continuing or shall exist, the
Administrative Agent may, and at the direction of the Required Banks shall,
irrespective of whether it is taking any other action with respect to such
Default or otherwise and without limiting the generality of Section 7.01, make
demand upon the applicable Account Party to, and forthwith upon such demand each
applicable Account Party will, pay to the Administrative Agent on behalf of the
Issuing Bank and the Banks in same day funds at the Administrative Agent's
Office, for deposit to the Cash Collateral Account, an amount equal to the
aggregate Letter of Credit 


                                      -49-
<PAGE>   51
Undrawn Availability of all Letters of Credit then outstanding. If at any time
the Administrative Agent determines that any funds held in the Cash Collateral
Account are subject to any right or claim of any Person other than the
Administrative Agent, the Issuing Bank and the Banks, or that the total amount
of such funds is less than the aggregate Letter of Credit Undrawn Availability
of all Letters of Credit then outstanding, the Account Parties will, forthwith
upon demand by the Administrative Agent, pay to the Administrative Agent, as
additional funds to be deposited and held in the Cash Collateral Account, an
amount equal to the excess of such aggregate Letter of Credit Undrawn
Availability over the total amount of funds, if any, then held in the Cash
Collateral Account that the Administrative Agent determines to be free and clear
of any such right and claim. As used herein, the term "Cash Collateral Account"
shall mean a cash collateral account opened by the Administrative Agent in the
name of the Account Parties but under the sole dominion and control of the
Administrative Agent and subject to the terms of this Agreement. Each Account
Party hereby grants to the Administrative Agent, for the benefit of the Issuing
Bank and the Banks, to secure payment of the Obligations, a security interest in
the Cash Collateral Account, all funds held therein and all certificates and
instruments, if any, from time to time representing or evidencing the Cash
Collateral Account. Amounts on deposit in the Cash Collateral Account shall bear
interest at the lowest customary rate payable at the time in question by the
Administrative Agent for overnight deposits of a comparable amount and such
interest shall be retained in and added to the Cash Collateral Account. URC
shall not have an obligation to make any payment required by this Section 7.02
to the extent making such payment would violate applicable Law. URC agrees to
use it best efforts, at its own expense and without regard to the amount of such
expense, to assure that the making by it of all payments otherwise required by
this Section 7.02 will not violate applicable Law, including without limitation
the seeking of any required regulatory approvals, the contesting of any
regulatory disapprovals to the extent reasonably requested by the Administrative
Agent or the Required Banks and the taking of all other actions reasonably
requested by the Administrative Agent or the Required Banks.




                                  ARTICLE VIII

                                   THE AGENTS


         8.01. Appointment. Each Bank hereby irrevocably appoints Mellon Bank,
N.A. to act as Administrative Agent, and Dresdner Bank AG, New York and Grand
Cayman Branches, to act as Documentation Agent, for such Bank under this
Agreement and the other Transaction Documents. Each Bank hereby irrevocably
authorizes each of the Agents to take such action on behalf of such Bank under
the provisions of this Agreement and the other Transaction Documents, and to
exercise such powers and to perform such duties, as are expressly delegated to
or required of each such Agent by the terms hereof or thereof, together with
such powers as are reasonably incidental thereto. Mellon Bank, N.A. hereby
agrees to act as Administrative Agent, and Dresdner Bank hereby agrees to act as
Documentation Agent, on behalf of the Banks on the terms and conditions set
forth in this Agreement and the other Transaction Documents, subject to the
right of each Agent to resign as provided in Section 8.09 hereof. Each Bank
hereby irrevocably authorizes the Administrative Agent to execute and deliver
each of the Transaction Documents and to accept delivery of such of the other
Transaction Documents as may not require execution by the Administrative Agent.
Each Bank agrees that the rights and remedies granted to each of the Agents
under the Transaction Documents shall be exercised exclusively by the Agents,
and that no Bank shall have any right individually to exercise any such right or
remedy, except to the extent expressly provided herein or therein.

         8.02. General Nature of Agents' Duties. Notwithstanding anything to the
contrary elsewhere in this Agreement or in any other Transaction Document:

         (a) No Agent shall have any duties or responsibilities except those
expressly set forth in this Agreement and the other Transaction Documents, and
no implied duties or responsibilities on the part of any Agent shall be read
into this Agreement or any Transaction Document or shall otherwise exist.


                                      -50-
<PAGE>   52
         (b) The duties and responsibilities of each of the Agents under this
Agreement and the other Transaction Documents shall be mechanical and
administrative in nature, and no Agent shall have a fiduciary relationship in
respect of any Bank.

         (c) Each Agent is and shall be solely the agent of the Banks. No Agent
assumes, and shall not at any time be deemed to have, any relationship of agency
or trust with or for, or any other duty or responsibility to, any other Person
(except only for its relationship as agent for, and its express duties and
responsibilities to, the Banks as provided in this Agreement and the other
Transaction Documents).

         (d) No Agent shall be under any obligation to take any action hereunder
or under any other Transaction Document if such Agent believes in good faith
that taking such action may conflict with any Law or any provision of this
Agreement or any other Transaction Document, or may require such Agent to
qualify to do business in any jurisdiction where it is not then so qualified.

         8.03. Exercise of Powers. Each of the Agents shall take any action of
the type specified in this Agreement or any other Transaction Document as being
within such Agent's rights, powers or discretion in accordance with directions
from the Required Banks (or, to the extent this Agreement or such Transaction
Document expressly requires the direction or consent of some other Person or set
of Persons, then instead in accordance with the directions of such other Person
or set of Persons). In the absence of such directions, such Agent shall have the
authority (but under no circumstances shall be obligated), in its sole
discretion, to take any such action, except to the extent this Agreement or such
Transaction Document expressly requires the direction or consent of the Required
Banks (or some other Person or set of Persons), in which case such Agent shall
not take such action absent such direction or consent. Any action or inaction
pursuant to such direction, discretion or consent shall be binding on all the
Banks. No Agent shall have any liability to any Person as a result of (x) such
Agent acting or refraining from acting in accordance with the directions of the
Required Banks (or other applicable Person or set of Persons), (y) such Agent
refraining from acting in the absence of instructions to act from the Required
Banks (or other applicable Person or set of Persons), whether or not such Agent
has discretionary power to take such action, or (z) such Agent taking
discretionary action it is authorized to take under this Section (subject, in
the case of this clause (z), to the provisions of Section 8.04(a) hereof).

         8.04. General Exculpatory Provisions. Notwithstanding anything to the
contrary elsewhere in this Agreement or any other Transaction Document:

         (a) No Agent shall be liable for any action taken or omitted to be
taken by it under or in connection with this Agreement or any other Transaction
Document, unless caused by its own gross negligence or willful misconduct.

         (b) No Agent shall be responsible for (i) the execution, delivery,
effectiveness, enforceability, genuineness, validity or adequacy of this
Agreement or any other Transaction Document, (ii) any recital, representation,
warranty, document, certificate, report or statement in, provided for in, or
received under or in connection with, this Agreement or any other Transaction
Document, (iii) any failure of any Credit Party or Bank to perform any of their
respective obligations under this Agreement or any other Transaction Document,
or (iv) the existence, validity, enforceability, perfection, recordation,
priority, adequacy or value, now or hereafter, of any Lien or other direct or
indirect security afforded or purported to be afforded by any of the Transaction
Documents or otherwise from time to time.

         (c) No Agent shall be under any obligation to ascertain, inquire or
give any notice relating to (i) the performance or observance of any of the
terms or conditions of this Agreement or any other Transaction Document on the
part of any Credit Party, (ii) the business, operations, condition (financial or
otherwise) or prospects of any Credit Party or any other Person, or (iii) except
to the extent set forth in Section 8.05(f) hereof, the existence of any Event of
Default or Potential Default.


                                      -51-
<PAGE>   53
         (d) No Agent shall be under any obligation, either initially or on a
continuing basis, to provide any Bank with any notices, reports or information
of any nature, whether in its possession presently or hereafter, except for such
notices, reports and other information expressly required by this Agreement or
any other Transaction Document to be furnished by such Agent to such Bank.

         8.05.  Administration by the Agents.

         (a) Each of the Agents may rely upon any notice or other communication
of any nature (written or oral, including but not limited to telephone
conversations, whether or not such notice or other communication is made in a
manner permitted or required by this Agreement or any Transaction Document)
purportedly made by or on behalf of the proper party or parties, and such Agent
shall not have any duty to verify the identity or authority of any Person giving
such notice or other communication.

         (b) Each of the Agents may consult with legal counsel (including,
without limitation, in-house counsel for such Agent or in-house or other counsel
for any Credit Party), independent public accountants and any other experts
selected by it from time to time, and such Agent shall not be liable for any
action taken or omitted to be taken in good faith by it in accordance with the
advice of such counsel, accountants or experts.

         (c) Each of the Agents may conclusively rely upon the truth of the
statements and the correctness of the opinions expressed in any certificates or
opinions furnished to such Agent in accordance with the requirements of this
Agreement or any other Transaction Document. Whenever such Agent shall deem it
necessary or desirable that a matter be proved or established with respect to
any Credit Party or Bank, such matter may be established by a certificate of
such Credit Party or Bank, as the case may be, and such Agent may conclusively
rely upon such certificate (unless other evidence with respect to such matter is
specifically prescribed in this Agreement or another Transaction Document).

         (d) Each of the Agents may fail or refuse to take any action unless it
shall be indemnified to its satisfaction from time to time against any and all
amounts, liabilities, obligations, losses, damages, penalties, actions,
judgments, suits, costs, expenses or disbursements of any kind or nature which
may be imposed on, incurred by or asserted against such Agent by reason of
taking or continuing to take any such action.

         (e) Each of the Agents may perform any of its duties under this
Agreement or any other Transaction Document by or through agents or
attorneys-in-fact. No Agent shall be responsible for the negligence or
misconduct of any agents or attorneys-in fact selected by it with reasonable
care.

         (f) No Agent shall be deemed to have any knowledge or notice of the
occurrence of any Event of Default or Potential Default unless such Agent has
received notice from a Bank or any Credit Party referring to this Agreement,
describing such Event of Default or Potential Default, and stating that such
notice is a "notice of default". If any Agent receives such a notice, such Agent
shall give prompt notice thereof to each Bank.

         8.06. Bank Not Relying on Agent or Other Banks. Each Bank acknowledges
as follows: (a) neither any Agent nor any other Bank has made any
representations or warranties to it, and no act taken hereafter by any Agent or
any other Bank shall be deemed to constitute any representation or warranty by
such Agent or such other Bank to it; (b) it has, independently and without
reliance upon any Agent or any other Bank, and based upon such documents and
information as it has deemed appropriate, made its own credit and legal analysis
and decision to enter into this Agreement and the other Transaction Documents;
and (c) it will, independently and without reliance upon any Agent or any other
Bank, and based upon such documents and information as it shall deem appropriate
at the time, make its own decisions to take or not take action under or in
connection with this Agreement and the other Transaction Documents.

         8.07. Indemnification. Each Bank agrees to reimburse and indemnify each
Agent and its directors, officers, employees and agents (to the extent not
reimbursed by a Credit Party and without limitation of the 


                                      -52-
<PAGE>   54
obligations of the Loan Parties to do so), ratably in accordance with their
respective Letter of Credit Participating Interests, from and against any and
all amounts, losses, liabilities, claims, damages, expenses, obligations,
penalties, actions, judgments, suits, costs or disbursements of any kind or
nature (including, without limitation, the reasonable fees and disbursements of
counsel for such Agent or such other Person in connection with any
investigative, administrative or judicial proceeding commenced or threatened,
whether or not such Agent or such other Person shall be designated a party
thereto) that may at any time be imposed on, incurred by or asserted against
such Agent or such other Person as a result of, or arising out of, or in any way
related to or by reason of, this Agreement, any other Transaction Document, any
transaction from time to time contemplated hereby or thereby, or any transaction
to which a Letter of Credit directly or indirectly relates, provided that no
Bank shall be liable for any portion of such amounts, losses, liabilities,
claims, damages, expenses, obligations, penalties, actions, judgments, suits,
costs or disbursements to the extent resulting from the gross negligence or
willful misconduct of such Agent or such other Person, as finally determined by
a court of competent jurisdiction. Payments under this Section shall be due and
payable on demand, and to the extent that any Bank fails to pay any such amount
on demand, such amount shall bear interest for each day from the date of demand
until paid (before and after judgment) at a rate per annum (calculated on the
basis of a year of 360 days and actual days elapsed) which for each day shall be
equal to 2% over the interest rate per annum announced by the Federal Reserve
Bank of New York or otherwise determined by such Agent to be applicable for such
day to overnight federal funds transactions arranged by federal funds brokers on
the previous trading day.

         8.08. Agents in their Individual Capacities. With respect to its
Commitments and the Obligations owing to each Agent, such Agent shall have the
same rights and powers under this Agreement and each other Transaction Document
as any other Bank and may exercise the same as though it were not an Agent, and
the terms "Banks" and like terms shall include such Agent in its individual
capacity as such. Each Agent and its affiliates may, without liability to
account, make loans to, accept deposits from, acquire debt or equity interests
in, act as trustee under indentures of, act as agent under other credit
facilities for, and engage in any other business with, any Credit Party and any
stockholder, subsidiary or affiliate of any Credit Party, as though such Agent
were not an Agent hereunder.

         8.09. Successor Agents. Any Agent may resign at any time by giving 10
days' prior written notice thereof to the Banks and the Account Parties. Any
Agent may be removed by the Required Banks at any time by giving 10 days' prior
written notice thereof to such Agent, the other Banks and the Account Parties.
Upon any such resignation or removal, the Required Banks shall have the right to
appoint a successor Agent. If no successor Agent shall have been so appointed
and consented to, and shall have accepted such appointment, within 30 days after
such notice of resignation or removal, then such retiring Agent may, on behalf
of the Banks, appoint a successor Agent. Each successor Agent shall be a
commercial bank or trust company organized under the laws of the United States
of America or any State thereof and having a combined capital and surplus of at
least $1,000,000,000. Upon the acceptance by a successor Agent of its
appointment as an Agent hereunder, such successor Agent shall thereupon succeed
to and become vested with all the properties, rights, powers, privileges and
duties of the former Agent, without further act, deed or conveyance. Upon the
effective date of resignation or removal of a retiring Agent, such Agent shall
be discharged from its duties under this Agreement and the other Transaction
Documents, but the provisions of this Agreement shall inure to its benefit as to
any actions taken or omitted by it while it was an Agent under this Agreement.
If and so long as no successor Agent shall have been appointed, then any notice
or other communication required or permitted to be given by such Agent shall be
sufficiently given if given by the Required Banks, all notices or other
communications required or permitted to be given to such Agent shall be given to
each Bank, and all payments to be made to such Agent shall be made directly to
the Account Parties or Bank for whose account such payment is made.

         8.10. Additional Administrative Agents. If the Administrative Agent
shall from time to time deem it necessary or advisable, for its own protection
in the performance of its duties hereunder or in the interest of the Banks, the
Administrative Agent and the Account Parties shall execute and deliver a
supplemental agreement and all other instruments and agreements necessary or
advisable, in the opinion of the Administrative Agent, to constitute another
commercial bank or trust company, or one or more other Persons 


                                      -53-
<PAGE>   55
approved by the Administrative Agent, to act as co-Administrative Agent or agent
with such powers of the Administrative Agent as may be provided in such
supplemental agreement and to vest in such bank, trust company or Person as such
co-Administrative Agent or separate agent, as the case may be, any properties,
rights, powers, privileges and duties of the Administrative Agent under this
Agreement or any other Transaction Document.

         8.11. Calculations. No Agent shall be liable for any calculation,
apportionment or distribution of payments made by it in good faith. If such
calculation, apportionment or distribution is subsequently determined to have
been made in error, the sole recourse of any Bank to whom payment was due but
not made shall be to recover from the other Banks any payment in excess of the
amount to which they are determined to be entitled or, if the amount due was not
paid by the appropriate Account Party, to recover such amount from the
appropriate Account Party.

         8.12. Agents' Fees. Each Account Party agrees to pay to each Agent, for
its individual account, a nonrefundable Administrative Agent's fee or
Documentation Agent's fee, as the case may be, in an amount and at such time or
times as such Agent and the Account Parties have heretofore agreed.



                                   ARTICLE IX

                                  MISCELLANEOUS


         9.01. No Implied Waiver etc. No delay or failure of any Agent or any
Bank in exercising any right, power or privilege hereunder shall affect such
right, power or privilege; nor shall any single or partial exercise thereof or
any abandonment or discontinuance of steps to enforce such a right, power or
privilege preclude any further exercise thereof or of any other right, power or
privilege. The rights and remedies hereunder of the Agents and the Banks are
cumulative and not exclusive of any rights or remedies which, it or they would
otherwise have. Any amendment, waiver, permit, consent or approval of any kind
or character on the part of an Agent or a Bank of any breach or default under
this Agreement or any such waiver of any provision or condition of this
Agreement must be in writing and shall be effective only to the extent in such
writing specifically set forth.

         9.02. Set-Off. In case any one or more of the Events of Default
described in Article VII hereof shall occur, each Bank shall have the right, in
addition to all other rights and remedies available to it, to set-off against
the unpaid balance of its interests in any Letter of Credit Reimbursement
Obligations any debt owing by such Bank to the applicable Credit Party,
including without limitation any funds in any deposit account maintained by such
Credit Party with such Bank. Nothing in this Agreement shall be deemed any
waiver or prohibition of any right of banker's lien or set-off under applicable
Law.

         9.03. Survival of Provisions. Each of the representations, warranties,
covenants and agreements of the Credit Parties contained herein or made in
writing in connection herewith shall survive the execution and delivery of this
Agreement, and the issuance of any Letter of Credit hereunder.

         9.04.  Expenses and Fees; Indemnity.

         (a) Each Account Party agrees to pay or cause to be paid and to save
each of the Agents, the Co-Arrangers and (in the case of clause (iv) below) each
of the Banks harmless against liability for the payment of all reasonable
out-of-pocket costs and expenses (including but not limited to reasonable fees
and expenses of counsel, including local counsel, auditors, and all other
professional, accounting, evaluation and consulting costs) incurred by such
Agent or such Bank from time to time arising from or relating to (i) the
negotiation, preparation, execution, delivery, administration and performance of
this Agreement and the other Transaction Documents, (ii) any syndication of the
transactions contemplated by


                                      -54-
<PAGE>   56
this Agreement and the Transaction Documents, (iii) any amendments,
modifications, supplements, waivers or consents requested by any Credit Party
(whether or not ultimately entered into or granted) to this Agreement or any
Transaction Document, and (iv) the enforcement or preservation of rights under
this Agreement or any Transaction Document (including but not limited to the
fees and expenses of special counsel to the Co-Arrangers and Banks and any such
costs or expenses arising from or relating to (A) collection or enforcement of
any other amount owing hereunder or thereunder by any Agent or any Bank and (B)
any litigation, proceeding, dispute, work-out, restructuring or rescheduling
related in any way to this Agreement or the Transaction Documents).
Notwithstanding the foregoing, an Account Party shall not be required to pay
costs and expenses of a Bank (in its capacity as such) which were incurred by
such Bank in connection with any litigation, proceeding or other dispute
relating solely to a claim made against such Bank by one or more of the other
Banks. Each Account Party hereby agrees to pay all stamp, document, transfer,
recording, filing, registration, search, sales and excise fees and taxes and all
similar impositions now or hereafter determined by any Agent or any Bank to be
payable in connection with this Agreement or any other Transaction Documents or
any other documents, instruments or transactions pursuant to or in connection
herewith or therewith, and an Account Party agrees to save each Agent and each
Bank harmless from and against any and all present or future claims, liabilities
or losses with respect to or resulting from any omission to pay or delay in
paying any such fees.

         (b) Each Account Party hereby agrees to reimburse and indemnify each
Agent, the Co-Arrangers and each Bank (the "Indemnified Parties") from and
against any and all losses, liabilities, claims, damages, expenses, obligations,
penalties, actions, judgments, suits, costs or disbursements of any kind or
nature whatsoever (including, without limitation, the fees and disbursements of
counsel for the Indemnified Parties in connection with any investigative,
administrative or judicial proceeding commenced or threatened, whether or not
such Indemnified Party shall be designated a party thereto) that may at any time
be imposed on, asserted against or incurred by such Indemnified Party as a
result of, or arising out of, or in any way related to or by reason of, this
Agreement or any other Transaction Document, any transaction from time to time
contemplated hereby or thereby, or any transaction to which any Letter of Credit
directly or indirectly relates (and without in any way limiting the generality
of the foregoing, including any violation or breach of any Law by any Credit
Party or any exercise by any Agent or any Bank of any of its rights or remedies
under this Agreement or any other Transaction Document; any breach of any
representation or warranty, covenant or agreement of any Credit Party); but
excluding any such losses, liabilities, claims, damages, expenses, obligations,
penalties, actions, judgments, suits, costs or disbursements to the extent
resulting from the gross negligence or willful misconduct of such Indemnified
Party, as finally determined by a court of competent jurisdiction. If and to the
extent that the foregoing obligations of the Account Parties under this Section
9.04, or any other indemnification obligation of the Account Parties hereunder
or under any other Transaction Document, are unenforceable for any reason, the
Account Parties hereby agree to make the maximum contribution to the payment and
satisfaction of such obligations which is permissible under applicable Law.
Notwithstanding the foregoing, an Account Party shall not be required to pay
costs and expenses of a Bank (in its capacity as such) which were incurred by
such Bank in connection with any litigation, proceeding or other dispute
relating solely to a claim made against such Bank by one or more of the other
Banks.

         9.05. Severability. In the event any one or more of the provisions
contained in this Agreement or in any other Transaction Document should be held
invalid, illegal or unenforceable in any respect, the validity, legality and
enforceability of the remaining provisions contained herein and therein shall
not in any way be affected or impaired thereby. The parties shall endeavor in
good-faith negotiations to replace the invalid, illegal or unenforceable
provisions with valid provisions the economic effect of which comes as close as
possible to that of the invalid, illegal or unenforceable provisions.

         9.06. Holidays. Unless otherwise specified herein, whenever any payment
or action to be made or taken hereunder shall be stated to be due on a Saturday,
Sunday or public holiday under the laws of the Commonwealth of Pennsylvania,
such payment or action shall be made or taken on the next succeeding Business
Day and such extension of time shall in such case be included in computing
interest, if any, in connection with such payment or action.


                                      -55-
<PAGE>   57
         9.07. Notices, etc. Any notice or other communication in connection
with this Agreement shall be deemed to have been given or made when received by
the party to whom directed. All such notices and other communications shall be
in writing unless otherwise provided herein and shall be directed, if to a Bank,
at such Bank's address on the signature pages hereof, if to the Administrative
Agent at Three Mellon Bank Center, Pittsburgh, Pennsylvania 15259, Attention:
Letter of Credit Department, with a copy to Institutional Banking, Room 370, One
Mellon Bank Center, Pittsburgh, PA 15258; if to the Issuing Bank at Three Mellon
Bank Center, Pittsburgh, Pennsylvania 15259, Attention: Letter of Credit
Department with a copy to Institutional Banking, Room 370, One Mellon Bank
Center, Pittsburgh, Pennsylvania 15258 and if to any Credit Party, to the Chief
Financial Officer of URGI at 26050 Mureau Road, Calabasas, California 91302, or
in accordance with the latest unrevoked written direction from any party to the
other parties hereto. For the purposes of both receiving information from any
Agent or any Bank or providing information to any Agent or any Bank, URGI shall
act as the agent for each other Credit Party.

         9.08. FORUM SELECTION AND CONSENT TO JURISDICTION. ANY LITIGATION BASED
HEREON, OR ARISING OUT OF, UNDER, OR IN CONNECTION WITH, THIS AGREEMENT OR ANY
OTHER LOAN DOCUMENT, OR ANY COURSE OF CONDUCT, COURSE OF DEALING, OR ANY OTHER
MATTER RELATED THERETO MAY BE BROUGHT AND MAINTAINED IN THE COURTS OF
COMMONWEALTH OF PENNSYLVANIA OR IN THE UNITED STATES DISTRICT COURT FOR THE
WESTERN DISTRICT OF PENNSYLVANIA. EACH CREDIT PARTY HEREBY EXPRESSLY AND
IRREVOCABLY SUBMITS TO THE JURISDICTION OF THE COURTS OF COMMONWEALTH OF
PENNSYLVANIA AND THE UNITED STATES DISTRICT COURT FOR THE WESTERN DISTRICT OF
PENNSYLVANIA FOR THE PURPOSE OF ANY SUCH LITIGATION AS SET FORTH ABOVE AND
IRREVOCABLY AGREES TO BE BOUND BY ANY JUDGMENT RENDERED THEREBY IN CONNECTION
WITH SUCH LITIGATION, SUBJECT TO ANY GENERAL RIGHT OF APPEAL. EACH CREDIT PARTY
FURTHER IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS BY REGISTERED MAIL,
POSTAGE PREPAID, TO THE ADDRESS PROVIDED IN THIS AGREEMENT.

         9.09. WAIVER OF JURY TRIAL. TO THE EXTENT LITIGATION HEREUNDER IS
BROUGHT BEFORE A COURT IN THE UNITED STATES, THE PARTIES HEREBY KNOWINGLY,
VOLUNTARILY AND INTENTIONALLY WAIVE ANY RIGHTS THEY MAY HAVE TO A TRIAL BY JURY.
EACH PARTY ACKNOWLEDGES AND AGREES THAT IT HAS RECEIVED FULL AND SUFFICIENT
CONSIDERATION FOR THIS PROVISION (AND EACH OTHER PROVISIONS OF EACH OTHER
DOCUMENT HERETO TO WHICH IT IS A PARTY) AND THAT THIS PROVISION IS A MATERIAL
INDUCEMENT FOR EACH AGENT AND EACH BANK ENTERING INTO THIS AGREEMENT AND RELATED
AGREEMENTS.

         9.10. Governing Law. This Agreement and any other documents delivered
in connection herewith and the rights and obligations of the parties hereto and
thereto shall for all purposes be governed by and construed and enforced in
accordance with the substantive law of the Commonwealth of Pennsylvania without
giving effect to conflict of laws principles.

         9.11 Validity and Enforceability. If any stamp tax, levy, duty or fee
is imposed or payable in respect to this Agreement or the transaction
contemplated hereby or is necessary or advisable to ensure the legality,
validity or enforceability of the documents in this transaction, the Account
Parties shall promptly pay such stamp tax, levy, duty or fee. No government
approval or consent is necessary for the execution, delivery and performance of
the transactions contemplated under this Agreement.

         9.12. Counterparts. This Agreement may be executed in any number of
counterparts and by the different parties hereto on separate counterparts, each
of which, when so executed and delivered, shall be an original, but all such
counterparts shall together constitute one (1) and the same instrument.

         9.13.  Successors and Assigns; Participations; Assignments.


                                      -56-
<PAGE>   58
         (a) Successors and Assigns. The provisions of this Agreement shall be
binding upon and inure to the benefit of the Account Parties, the Banks, the
Agents, and their respective successors and assigns, except that no Credit Party
may assign or otherwise transfer any of its rights or duties under this
Agreement without the prior written consent of each of the Agents and each of
the Banks, and any purported assignment without such consent shall be void.

         (b) Participations. Any Bank may, in the ordinary course of its
commercial banking business and in accordance with applicable Law, at any time
sell participations to one or more commercial banks or other Persons (each a
"Participant") in a portion of its rights and obligations under this Agreement
and the other Transaction Documents (including, without limitation, all or a
portion of its Letter of Credit Participating Interest Commitments and Letter of
Credit Participating Interest); provided, that

                  (i) any such participation sold to a Participant which is not
         a Bank, an affiliate of a Bank or a Federal Reserve Bank shall be made
         only with the consent (which in each case shall not be unreasonably
         withheld) of the Account Parties and each of the Agents, unless an
         Event of Default has occurred and is continuing, in which case the
         consent of the Account Parties shall not be required,

                  (ii) any such Bank's obligations under this Agreement and the
         other Transaction Documents shall remain unchanged,

                  (iii) such Bank shall remain solely responsible to the other
         parties hereto for the performance of such obligations,

                  (iv) the parties hereto shall continue to deal solely and
         directly with such Bank in connection with such Bank's rights and
         obligations under this Agreement and each of the other Transaction
         Documents,

                  (v) such Participant shall be bound by the provisions of
         Section 9.13 hereof, and the Bank selling such participation shall
         obtain from such Participant a written confirmation of its agreement to
         be so bound,

                  (vi) no Participant (unless such Participant is an affiliate
         of such Bank, or is itself a Bank) shall be entitled to require such
         Bank to take or refrain from taking action under this Agreement or
         under any other Transaction Document, except that such Bank may agree
         with such Participant that such Bank will not, without such
         Participant's consent, take action of the type described in subsections
         (a), (b), (c), (d) or (e) of Section 9.14 hereof, and

                  (vii) a Participant shall have the right to vote regarding
         amendments to this Agreement only in connection with amendments which
         effect changes in the amount of Letter of Credit Participating Interest
         Commitments, Letter of Credit Participating Interests, fees payable
         hereunder and the Expiration Date.

Each Account Party agrees that any such Participant shall be entitled to the
benefits of Sections 2.12 and 9.04 with respect to its participation in the
Commitments and the Letters of Credit outstanding from time to time; provided,
that no such Participant shall be entitled to receive any greater amount
pursuant to such Sections than the transferor Bank would have been entitled to
receive in respect of the amount of the participation transferred to such
Participant had no such transfer occurred.

         (c) Assignments. Any Bank may, in the ordinary course of its commercial
banking business and in accordance with applicable Law, at any time assign all
or a portion of its rights and obligations under this Agreement and the other
Transaction Documents (including, without limitation, all or any portion of its
Letter of Credit Participating Interest Commitments and Letter of Credit
Participating Interests) to any 


                                      -57-
<PAGE>   59
Bank, any affiliate of a Bank or to one or more additional commercial banks or
other Persons (each a "Purchasing Bank"); provided, that

                  (i) any such assignment shall be made only with the consent
         (which in each case shall not be unreasonably withheld) of the Account
         Parties and the Issuing Bank, unless an Event of Default has occurred
         and is continuing or exists, in which case the consent of the Account
         Parties shall not be required,

                  (ii) if a Bank makes such an assignment of less than all of
         its then remaining rights and obligations under this Agreement and the
         other Transaction Documents, such assignment shall be in a minimum
         aggregate principal amount of $10,000,000 of the Letter of Credit
         Participating Interest Commitments and Letter of Credit Participating
         Interests then outstanding,

                  (iii) each such assignment shall be of a constant, and not a
         varying, percentage of each Commitment of the transferor Bank and of
         all of the transferor Bank's rights and obligations under this
         Agreement and the other Transaction Documents, and

                  (iv) each such assignment shall be made pursuant to a Transfer
         Supplement in substantially the form of Exhibit B to this Agreement,
         duly completed (a "Transfer Supplement").

             In order to effect any such assignment, the transferor Bank and the
    Purchasing Bank shall execute and deliver to the Administrative Agent a duly
    completed Transfer Supplement (including the consents required by clause (i)
    of the preceding sentence) with respect to such assignment, and a processing
    and recording fee of $2,500; and, upon receipt thereof, the Administrative
    Agent shall accept such Transfer Supplement; provided, however, that no such
    processing and recording fee shall be due if such assignment is to an
    affiliate of a Bank or a Federal Reserve Bank. Upon receipt of the Purchase
    Price Receipt Notice pursuant to such Transfer Supplement, the
    Administrative Agent shall record such acceptance in the Register. Upon such
    execution, delivery, acceptance and recording, from and after the close of
    business at the Administrative Agent's Office on the Transfer Effective Date
    specified in such Transfer Supplement:

                  (x) the Purchasing Bank shall be a party hereto and, to the
         extent provided in such Transfer Supplement, shall have the rights and
         obligations of a Bank hereunder, and

                  (y) the transferor Bank thereunder shall be released from its
         obligations under this Agreement to the extent so transferred (and, in
         the case of an Transfer Supplement covering all or the remaining
         portion of a transferor Bank's rights and obligations under this
         Agreement, such transferor Bank shall cease to be a party to this
         Agreement) from and after the Transfer Effective Date.

         (d) Register. The Administrative Agent shall maintain at its office a
copy of each Transfer Supplement delivered to it and a register (the "Register")
for the recordation of the names and addresses of the Banks and the Letter of
Credit Participating Interest Commitment of, and the amount of the Letter of
Credit Participating Interests of, each Bank from time to time. The entries in
the Register shall be conclusive absent manifest error and the Account Parties,
the Agents and the Banks may treat each person whose name is recorded in the
Register as a Bank hereunder for all purposes of the Agreement. The Register
shall be available for inspection by an Account Party or any Bank at any
reasonable time and from time to time upon reasonable prior notice.

         (e) Financial and Other Information. Each Credit Party authorizes each
Agent and each Bank to disclose to any Participant or Purchasing Bank (each, a
"Transferee") and any prospective transferee any and all financial and other
information in such Person's possession concerning the Credit Parties and their
affiliates which has been or may be delivered to such Person by or on behalf of
the Credit Parties in connection with this Agreement or any other Transaction
Document or such Person's credit evaluation of 


                                      -58-
<PAGE>   60
the Credit Parties and their affiliates, subject to the agreement of the
Transferee or prospective Transferee to be bound by Section 9.17 hereof with
respect to confidentiality. At the request of any Bank, a Credit Party, at a
Credit Party's expense, shall provide to each prospective transferee the
conformed copies of documents referred to in Section 4 of the form of Transfer
Supplement.

         9.14. Amendments and Waivers. Neither this Agreement nor any
Transaction Document may be amended, modified or supplemented except in
accordance with the provisions of this Section. The Agents and the Credit
Parties may from time to time amend, modify or supplement the provisions of this
Agreement or any other Transaction Document for the purpose of amending, adding
to, or waiving any provisions or changing in any manner the rights and duties of
any Credit Party, any Agent or any Bank. Any such amendment, modification or
supplement made by the Credit Parties and the Agents in accordance with the
provisions of this Section shall be binding upon the Credit Parties, each Bank
and each Agent. The Agents shall enter into such amendments, modifications or
supplements from time to time as directed by the Required Banks, and only as so
directed, provided, that no such amendment, modification or supplement may be
made which will:

         (a) Increase the Letter of Credit Participating Interest Committed
Amount of any Bank over the amount thereof then in effect, or extend the
Expiration Date, without the written consent of each Commitment Bank affected
thereby;

         (b) Reduce the amount of or postpone the date for payment of any
Commitment Fee or Letter of Credit Fee or reduce or postpone the date for
payment of any other fees, expenses, indemnities or amounts payable under any
Transaction Document, without the written consent of each Bank affected thereby;

         (c) Change the definition of "Required Banks" or amend this Section
9.14, without the written consent of all the Banks;

         (d) Amend or waive any of the provisions of Article IX hereof, or
impose additional duties upon any Agent or otherwise adversely affect the
rights, interests or obligations of any Agent, without the written consent of
such Agent;

         (e) Amend or waive any of the provisions of Article V or release any
Guarantor from its obligations hereunder without the written consent of all the
Banks;

and provided further, that Transfer Supplements may be entered into in the
manner provided in Section 9.13 hereof. Any such amendment, modification or
supplement must be in writing and shall be effective only to the extent set
forth in such writing. Any Event of Default or Potential Default waived or
consented to in any such amendment, modification or supplement shall be deemed
to be cured and not continuing to the extent and for the period set forth in
such waiver or consent, but no such waiver or consent shall extend to any other
or subsequent Event of Default or Potential Default or impair any right
consequent thereto.

         9.15. Judgment Currency. In the event of a judgment or order being
rendered by any court or tribunal for the payment of any amounts owing to the
Banks or any of them under this Agreement or any other Transaction Document or
for the payment of damages in respect of any breach of this Agreement or any
other Transaction Document or under or in respect of a judgment or order of
another court or tribunal for the payment of such amounts or damages, such
judgment or order being expressed in a currency (the "Judgment Currency") other
than Dollars the party against whom the judgment or order is made shall
indemnify and hold the Banks harmless against any deficiency in terms of Dollars
in the amounts received by the Banks arising or resulting from any variations as
between (i) the exchange rate at which Dollars are converted into the Judgment
Currency for the purposes of such judgment or order and (ii) the exchange rate
at which each Bank is able to purchase Dollars with the amount of the Judgment
Currency actually received by the Banks on the date of such receipt. The
indemnity in this section shall constitute a separate and independent obligation
from the other obligations of the Account Parties hereunder and shall apply
irrespective of any indulgence granted by the Banks.


                                      -59-
<PAGE>   61
         9.16. Records. The amount of outstanding Letters of Credit, each Bank's
Letter of Credit Participating Interest Committed Amount and the accrued and
unpaid Commitment Fees shall at all times be ascertained from the records of the
Administrative Agent, which shall be conclusive absent manifest error.

         9.17 Confidentiality. Each of the Agents and the Banks agree to keep
confidential any information relating to the Credit Parties received by it
pursuant to or in connection with this Agreement which is (a) information which
such Agent and such Bank reasonably expects that the applicable Credit Party
would want to keep confidential or (b) information which is clearly marked
"CONFIDENTIAL"; provided, however, that this Section 9.17 shall not be construed
to prevent any Agent or any Bank from disclosing such information (i) to any
affiliate that shall agree in writing for the benefit of the Credit Parties to
be bound by this obligation of confidentiality, (ii) upon the order of any court
or administrative agency of competent jurisdiction, (iii) upon the request or
demand of any regulatory agency or authority having jurisdiction over such Agent
or such Bank which request or demand has the force of Law or is made by a bank
regulatory agency, (iv) that has been publicly disclosed, other than from a
breach of this provision by any Agent or any Bank, (v) that has been obtained
from any person that is neither a party to this Agreement nor an affiliate of
any such party, but only to the extent that such Bank does not know or have
reason to know that such disclosure violates a confidentiality agreement between
such person and the applicable Credit Party (vi) in connection with the exercise
of any right or remedy hereunder or under any other Transaction Document, (vii)
as expressly contemplated by this Agreement or any other Transaction Document or
(viii) to any prospective purchaser of all or any part of the interest of any
Bank which shall agree in writing for the benefit of the Credit Parties to be
bound by the obligation of confidentiality in this Agreement or the other
Transaction Documents if such prospective purchaser is a financial institution
or has been consented to by the Account Parties, which consent will not be
withheld if such purchaser is not a competitor of any Account Party or an
affiliate of a competitor of any Account Party.

         9.18. Sharing of Collections. The Banks hereby agree among themselves
that if any Bank shall receive (by voluntary payment, realization upon security,
set-off or from any other source) any amount on account of any Obligation
contemplated by this Agreement or the other Transaction Documents to be made by
an Account Party pro rata to all Banks in greater proportion than any such
amount received by any other Bank, then the Bank receiving such proportionately
greater payment shall notify each other Bank and the Administrative Agent of
such receipt, and equitable adjustment will be made in the manner stated in this
Section 9.18 so that, in effect, all such excess amounts will be shared ratably
among all of the Banks. The Bank receiving such excess amount shall purchase
(which it shall be deemed to have done simultaneously upon the receipt of such
excess amount) for cash from the other Banks a participation in the applicable
Obligations owed to such other Banks in such amount as shall result in a ratable
sharing by all Banks of such excess amount (and to such extent the receiving
Bank shall be a Participant). If all or any portion of such excess amount is
thereafter recovered from the Bank making such purchase, such purchase shall be
rescinded and the purchase price restored to the extent of such recovery,
together with interest or other amounts, if any, required by Law to be paid by
the Bank making such purchase. The Account Parties hereby consent to and confirm
the foregoing arrangements. Each Participant shall be bound by this Section 9.18
as fully as if it were a Bank hereunder.

         9.19. Co-Arrangers. The Co-Arrangers shall have no obligations in their
capacity as such under this Agreement.


                                      -60-
<PAGE>   62
         IN WITNESS WHEREOF, the parties hereto, by their respective officers
thereunto duly authorized, have executed this Agreement as of the day and year
first above written.


VENTON UNDERWRITING LIMITED, AS AN ACCOUNT PARTY

By:  /s/D. M. Slade                                                       
     -------------------------------------------------
      (Signature)

Name:  D. M. Slade                                                      
     -------------------------------------------------
Title:  Director                                                              
      ------------------------------------------------



TALBOT UNDERWRITING LIMITED, AS AN ACCOUNT PARTY

By:  /s/D. M. Slade                                                        
     -------------------------------------------------
      (Signature)

Name:  D. M. Slade                                                       
     -------------------------------------------------
Title:  Director                                                               
      ------------------------------------------------



UNDERWRITERS RE GROUP, INC., AS A GUARANTOR

By:  /s/Stephen C. Kolakowski                                        
     -------------------------------------------------
      (Signature)

Name:  Stephen C. Kolakowski                                       
     -------------------------------------------------
Title:  Chief Financial Officer                                         
      ------------------------------------------------

UNDERWRITERS REINSURANCE COMPANY, AS A GUARANTOR

By:  /s/Stuart M. de Haaff                                              
     -------------------------------------------------
      (Signature)

Name:  Stuart M. de Haaff                                              
     -------------------------------------------------
Title:  Senior Vice President                                            
      ------------------------------------------------


                                      -61-
<PAGE>   63
MELLON BANK, N.A., AS A BANK, AS ISSUING BANK, AS ADMINISTRATIVE AGENT, AND AS
CO-ARRANGER


By:  /s/Timothy J. Marchando                                      
     -------------------------------------------------
      (Signature)

Name:  Timothy J. Marchando                                      
     -------------------------------------------------
Title:  Vice President                                                    
      ------------------------------------------------

Notice Address:

Institutional Banking Department
One Mellon Bank Center, Room 370
Pittsburgh, PA 15258
Attn: Susan Whitewood

with a copy to:
Manager, Letter of Credit Operations
Three Mellon Bank Center, 23rd Floor
Pittsburgh, PA 15259

Initial Letter of Credit Participating Interest Committed Amount:  $112,500,000



DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES, AS DOCUMENTATION AGENT 
AND AS A BANK


By:  /s/Lloyd C. Stevens                      By:  /s/Robert P. Donohue 
     -----------------------------                 -----------------------------
      (Signature)                                   (Signature) 

Name:  Lloyd C. Stevens                       Name:  Robert P. Donohue
     -----------------------------                 -----------------------------
Title:  Vice President                        Title:  Vice President
      ----------------------------                  ----------------------------

Notice Address:  Financial Institutions Sector
                 75 Wall Street
                 New York, New York  10005
                 Attn: Robert P. Donohue


Initial Letter of Credit Participating Interest Committed Amount:  $112,500,000


                                      -62-
<PAGE>   64
DRESDNER KLEINWORT BENSON NORTH AMERICA LLC AS CO-ARRANGER


By:  /s/Lloyd C. Stevens                      By:  /s/Robert P. Donohue 
     -----------------------------                 -----------------------------
      (Signature)                                   (Signature) 

Name:  Lloyd C. Stevens                       Name:  Robert P. Donohue
     -----------------------------                 -----------------------------
Title:  Vice President                        Title:  Vice President
      ----------------------------                  ----------------------------

Notice Address:  Financial Institutions Sector
                 75 Wall Street
                 New York, New York  10005
                 Attn: Robert P. Donohue


                                      -63-

<PAGE>   1
                                                                EXHIBIT 10.29(b)


                                LIST OF EXHIBITS
                                     TO THE
                     UNDERWRITERS LETTER OF CREDIT FACILITY



EXHIBIT NUMBER     DESCRIPTION
- --------------     -----------

      A            Form of Letter of Credit Agreement

      B            Form of Transfer Supplement

      C            Contents of Opinions of Counsel

      D            Form of Compliance Certificate

      E            List of Existing Letters of Credit

      F            Letter of Credit Application

     2.01(b)       Form of Evergreen Provision

     3.03          Approvals and Consents

     3.04          Governmental Consents

     3.05          Financial Statements

     3.07          Taxes

     3.09          Insurance Licenses

     3.13          Environmental Laws

     3.16          Capitalization

     3.17          ERISA

     3.23          Ownership of Properties

     3.24          Indebtedness

     6.14          Investments

     6.16          Liens

<PAGE>   1
                                                                Exhibit 10.29(c)




                FIRST AMENDMENT TO LETTER OF CREDIT FACILITY AND
                             REIMBURSEMENT AGREEMENT





              THIS FIRST AMENDMENT TO LETTER OF CREDIT FACILITY AND
REIMBURSEMENT AGREEMENT, dated as of November 25, 1998 (this "Amendment"), by
and among between VENTON UNDERWRITING GROUP LIMITED, an English company
("VUGL"), VENTON UNDERWRITING LIMITED, TALBOT UNDERWRITING LIMITED, UNDERWRITERS
RE GROUP, INC., UNDERWRITERS REINSURANCE COMPANY, the Banks (as defined in the
Reimbursement Agreement) parties to the Reimbursement Agreement (as defined
below), MELLON BANK, N.A., as Issuing Bank, as Administrative Agent and as a
Co-Arranger, DRESDNER BANK AG, NEW YORK AND GRAND CAYMAN BRANCHES, as
Documentation Agent and DRESDNER KLEINWORT BENSON NORTH AMERICA LLC, as
Co-Arranger.

                                   WITNESSETH:

              WHEREAS, the parties named above (other than VUGL) are parties to
a Letter of Credit Facility and Reimbursement Agreement, dated as of October 23,
1998 (the "Reimbursement Agreement"), pursuant to which the Banks and the
Issuing Bank have agreed, on the terms and subject to the conditions described
therein, to extend credit to the Account Parties; and

              WHEREAS, capitalized terms used herein and not otherwise defined
shall have the meanings assigned to them in the Reimbursement Agreement; and

              WHEREAS, URC proposes to acquire VUGL as an indirect wholly owned
subsidiary; and

              WHEREAS, VUGL, the Account Parties and the Guarantors desire that,
upon such acquisition, VUGL become a party to the Reimbursement Agreement as an
Account Party and have requested the Bank Parties to amend the Reimbursement
Agreement to provide therefor; and

              WHEREAS, URC has requested that, prior to such acquisition and to
execution and delivery of this Amendment by VUGL, a Letter of Credit be issued
which will be stated to be issued for the account of VUGL but which, upon its
issuance, will be, and will be deemed to be, issued for the account of Venton
Underwriting Limited; and

              WHEREAS, the Bank Parties are willing to so amend the
Reimbursement Agreement and to agree to such issuance of a Letter of Credit.
<PAGE>   2
              NOW THEREFORE, in consideration of the premises and of the mutual
covenants herein contained, and intending to be legally bound hereby, the
parties hereto agree as follows:

              SECTION 1. CERTAIN LETTER OF CREDIT. The Letter of Credit
requested by Venton Underwriting Limited to be issued by the Issuing Bank on or
about November 24, 1998, which has been requested to be, and will be, stated to
be issued for the account of VUGL, will be and will be deemed to be a Letter of
Credit under the Reimbursement Agreement issued for the account of Venton
Underwriting Limited. Upon the execution and delivery of this Amendment by VUGL
and the satisfaction of the conditions set forth in Section 3 of this Amendment,
(x) such Letter of Credit will be, and will be deemed to be, issued for the
account of VUGL as a Letter of Credit under the Reimbursement Agreement as
amended by this Amendment and (y) Venton Underwriting Limited will thenceforth
not be, and will thenceforth be deemed not to be, the Account Party with respect
to such Letter of Credit.


              SECTION 2. AMENDMENTS TO REIMBURSEMENT AGREEMENT AND RELATED
PROVISIONS. Upon the execution and delivery of this Amendment by VUGL and the
satisfaction of all of the conditions set forth in Section 3 of this Amendment,
the following provisions shall be effective:

              (a) AMENDMENTS.

              (i) The definition of the term "Account Parties" and "Account
Party" in Section 1.01 of the Reimbursement Agreement is hereby amended by
adding thereto, after the words "Venton Underwriting Limited" appearing therein,
the phrase ", Venton Underwriting Group Limited".

              (ii) The definition of the term "Continuing Letter of Credit
Agreement" is hereby amended by deleting the phrase "shall mean the letter of
credit agreement" and inserting in lieu thereof the phrase "shall mean,
collectively, one or more letter of credit agreements".

              (b) REPRESENTATIONS AND WARRANTIES. Each of VUGL and each
Guarantor hereby represents and warrants that the representations and warranties
set forth in Article III of the Reimbursement Agreement will be true and correct
on the date of delivery of this Amendment by VUGL (and after giving effect
hereto) as if made on and as of such date.

              (c) AGREEMENT OF VUGL. By its execution and delivery of this
Amendment, VUGL becomes a party to the Reimbursement Agreement as an Account
Party and a Credit Party.


              SECTION 3. CONDITIONS.

              (a) Proceedings and Incumbency. There shall have been delivered to
         the Administrative Agent with sufficient copies for each Bank a
         certificate with respect to VUGL in form and substance satisfactory to
         each Co-Arranger dated the date of this Amendment and signed on behalf
         of each Credit Party by the Secretary or an Assistant Secretary of VUGL
         certifying as to: (a) true copies of all corporate action taken by such
         Credit Party relative to the Reimbursement Agreement, this Amendment
         and the other Transaction Documents applicable to it, including but not
         limited to that described in Section 3.02 of the Reimbursement
         Agreement and (b) the names, true signatures and incumbency of the
         officer or officers of VUGL authorized to execute and deliver this
         Amendment and the other Transaction Documents applicable to it. Each
         Bank, the 
<PAGE>   3
         Issuing Bank and each Agent may conclusively rely on such certificates
         unless and until a later certificate revising the prior certificate has
         been furnished to such Person.

              (b) Organizational Documents. There shall have been delivered to
         the Administrative Agent with sufficient copies for each Bank (i)
         certified copies of the articles of incorporation or memorandum of
         association and by-laws or other equivalent organizational documents
         for VUGL and (ii) a certificate of good standing for VUGL certified by
         the appropriate Official Body of its place of organization.

              (c) Opinions of Counsel. There shall have been delivered to the
         Administrative Agent with sufficient copies for each Bank written
         opinions addressed to the Banks, dated the Closing Date, of Messrs.
         Dewey Ballantine LLP, counsel for URGI and URC and special English
         counsel for VUGL, in form and substance reasonably satisfactory to each
         Bank.

              (d) Letter of Credit Agreement. VUGL shall have executed and
         delivered to the Issuing Bank a letter of credit agreement
         substantially in the form attached as Exhibit A to the Reimbursement
         Agreement.

              (e) Details, Proceedings and Documents. All legal details and
         proceedings in connection with the transactions contemplated by this
         Amendment shall be reasonably satisfactory to each Bank, and each Bank
         shall have received all such counterpart originals or certified or
         other copies of this Agreement and the other the Transaction Documents
         and such other documents and proceedings in connection with such
         transactions, in form and substance satisfactory to it, as such Bank
         has reasonably requested.

              SECTION 4. EFFECT OF AMENDMENT. The Reimbursement Agreement, as
amended by this Amendment, is in all respects ratified, approved and confirmed
and shall, as so amended, remain in full force and effect.

              SECTION 5. GOVERNING LAW. This Amendment shall be deemed to be a
contract under the laws of the Commonwealth of Pennsylvania and for all purposes
shall be governed by and construed and enforced in accordance with the laws of
said Commonwealth.

              SECTION 6. COUNTERPARTS. This Amendment may be executed in any
number of counterparts and by the different parties hereto on separate
counterparts, each of which, when so executed, shall be deemed an original, but
all such counterparts shall constitute but one and the same instrument.

              IN WITNESS WHEREOF, the parties hereto have executed this
Amendment as of the date first above written.


                             VENTON UNDERWRITING GROUP LIMITED, AS AN
                             ACCOUNT PARTY


                             By:             /s/ D.M. Slade
                                ------------------------------------------------
                                  (Signature)
                             Name:   D.M. Slade 
                                  ----------------------------------------------
                             Title:  Director
                                   ---------------------------------------------
<PAGE>   4
                             VENTON UNDERWRITING LIMITED, AS AN ACCOUNT
                             PARTY


                             By:             /s/ D.M. Slade
                                ------------------------------------------------
                                  (Signature)
                             Name:   D.M. Slade 
                                  ----------------------------------------------
                             Title:  Director
                                   ---------------------------------------------



                             TALBOT UNDERWRITING LIMITED, AS AN ACCOUNT PARTY


                             By:             /s/ D.M. Slade
                                ------------------------------------------------
                                  (Signature)
                             Name:   D.M. Slade 
                                  ----------------------------------------------
                             Title:  Director
                                   ---------------------------------------------



                             UNDERWRITERS RE GROUP, INC., AS A GUARANTOR


                             By:            /s/ Stuart M. de Haaff
                                ------------------------------------------------
                                (Signature)
                             Name:   Stuart M. de Haaff
                                  ----------------------------------------------
                             Title:  General Counsel and Secretary
                                   ---------------------------------------------



                             UNDERWRITERS REINSURANCE COMPANY, AS A GUARANTOR


                             By:            /s/ Stuart M. de Haaff
                                ------------------------------------------------
                                (Signature)
                             Name:   Stuart M. de Haaff
                                  ----------------------------------------------
                             Title:  Senior Vice President
                                   ---------------------------------------------



                             MELLON BANK, N.A., AS A BANK, AS ISSUING BANK, AS
                             ADMINISTRATIVE AGENT, AND AS CO-ARRANGER


                             By:                /s/ Timothy J. Marchando
                                ------------------------------------------------
                                 (Signature)
                             Name:   Timothy J. Marchando
                                  ----------------------------------------------
                             Title:  Vice President
                                   ---------------------------------------------
<PAGE>   5
                   DRESDNER BANK AG, NEW YORK AND GRAND
                   CAYMAN BRANCHES, AS DOCUMENTATION AGENT AND AS A
                   BANK


                   By:  /s/ Lloyd C. Stevens     By:  /s/ Anthony C. Valencourt
                      ------------------------      ----------------------------
                      (Signature)                   (Signature)
                   Name:  Lloyd C. Stevens       Name:  Anthony C. Valencourt
                        ----------------------        --------------------------
                   Title: Vice President         Title: Senior Vice President
                         ---------------------         -------------------------



                   DRESDNER KLEINWORT BENSON NORTH AMERICA
                   LLC AS CO-ARRANGER


                   By:  /s/ Lloyd C. Stevens     By:  /s/ Anthony C. Valencourt
                      ------------------------      ----------------------------
                      (Signature)                   (Signature)
                   Name:  Lloyd C. Stevens       Name:  Anthony C. Valencourt
                        ----------------------        --------------------------
                   Title: Vice President         Title: Senior Vice President
                         ---------------------         -------------------------

<PAGE>   1
                                                                Exhibit 10.29(d)

12.29.98




                SECOND AMENDMENT TO LETTER OF CREDIT FACILITY AND
                             REIMBURSEMENT AGREEMENT





              THIS SECOND AMENDMENT TO LETTER OF CREDIT FACILITY AND
REIMBURSEMENT AGREEMENT, dated as of December 8, 1998 (this "Amendment"), by and
among VENTON UNDERWRITING GROUP LIMITED, VENTON UNDERWRITING LIMITED, TALBOT
UNDERWRITING LIMITED, UNDERWRITERS RE GROUP, INC., UNDERWRITERS REINSURANCE
COMPANY, the Banks (as defined in the Reimbursement Agreement) parties to the
Reimbursement Agreement (as defined below), MELLON BANK, N.A., as Issuing Bank,
as Administrative Agent and as a Co-Arranger, DRESDNER BANK AG, NEW YORK AND
GRAND CAYMAN BRANCHES, as Documentation Agent and DRESDNER KLEINWORT BENSON
NORTH AMERICA LLC, as Co-Arranger.

                                   WITNESSETH:

              WHEREAS, the parties named above are parties to a Letter of Credit
Facility and Reimbursement Agreement, dated as of October 23, 1998 (as
heretofore amended by the First Amendment thereto, the "Reimbursement
Agreement"), pursuant to which the Banks and the Issuing Bank have agreed, on
the terms and subject to the conditions described therein, to extend credit to
the Account Parties; and

              WHEREAS, capitalized terms used herein and not otherwise defined
shall have the meanings assigned to them in the Reimbursement Agreement; and

              WHEREAS, the Account Parties and the Guarantors have requested the
Banks to amend the Reimbursement Agreement in certain respects; and

              WHEREAS, the Bank Parties are willing to so amend the
Reimbursement Agreement.


              NOW THEREFORE, in consideration of the premises and of the mutual
covenants herein contained, and intending to be legally bound hereby, the
parties hereto agree as follows:

              SECTION 1. AMENDMENT TO SECTION 6.20. Section 6.20 of the
Reimbursement Agreement is amended to read as follows:

                         6.20. Change in Corporate Structure; Fiscal Year. No
                   Credit Party shall, nor shall it permit any Subsidiary to,
                   (a) permit any amendment or modification to be made to its
                   certificate or articles of incorporation or by-laws which is
                   materially adverse to the interests of the Banks (provided
                   that such
<PAGE>   2
                   Credit Party shall notify the Administrative Agent of any 
                   other amendment or modification thereto as soon as
                   practicable thereafter) or (b) change its Fiscal Year to end
                   on any date other than December 31 of each year, except that
                   the Venton Entities may change their Fiscal Year to the
                   twelve months ending September 30.

              SECTION 2. CERTAIN ADDITIONAL AMENDMENTS. In addition to the
amendments made in Section 1 of this Amendment, the Reimbursement Agreement is
hereby amended in the following respects:

              (a) Section 1.01 of the Reimbursement Agreement is amended by
deleting the definition of "Subsidiary" appearing therein and by adding thereto,
in proper alphabetical sequence, the following definitions:

                         "Agents" shall mean, collectively, the Administrative
                   Agent, the Documentation Agent and the Syndication Agent and
                   "Agent" shall mean one of them.

                         "Permitted Ratable Debt Payment" shall mean a payment
                   by URGI under the Credit Agreement referred to in item 3 of
                   Schedule 3.24 hereto, as amended, supplemented or modified
                   from time to time, (i) which is made contemporaneously with
                   an actual cash payment by URGI or any Subsidiary of URGI to
                   the Cash Collateral Account and (ii) which bears the same
                   ratio to the amount of the payment to the Cash Collateral
                   Account referred to in clause (i) as the aggregate
                   outstanding principal amount of loans under such Credit
                   Agreement immediately before such payment (but not exceeding
                   $50,000,000) bears to the Letter of Credit Exposure
                   immediately before such payment.

                         "Subsidiary" of a Person means (a) any corporation more
                   than 50% of the outstanding securities having ordinary voting
                   power of which shall at the time be owned or controlled,
                   directly or indirectly, by such Person or (b) any
                   partnership, association, joint venture or similar business
                   organization more than 50% of the ownership interests having
                   ordinary voting power of which shall at the time be so owned
                   or controlled. Unless the context otherwise requires, all
                   references herein to a "Subsidiary" shall mean a Subsidiary
                   of URGI.

                         "Syndication Agent" shall mean First Union National
                   Bank.

              (b) Section 2.03(c)(ii) of the Reimbursement Agreement is amended
by deleting the phrase "at least two Business Days before" and inserting in lieu
thereof the phrase "at least one Business Day before". 

              (c) Section 2.05(b) of the Reimbursement Agreement is amended by
deleting the words "to and including the second Business Day thereafter"
appearing in the last sentence thereof (it having been determined that such
words were included in the Reimbursement Agreement as a result of a
typographical error).

              (d) Section 2.14 of the Reimbursement Agreement is amended by
deleting the words "by such thirtieth day" (it having been determined that such
words were included in the Reimbursement Agreement as a result of a
typographical error) and inserting in lieu thereof the words "by such
forty-fifth day".
<PAGE>   3
              (e) Section 5.06 of the Reimbursement Agreement is amended by
deleting the words "my Account Party" (it having been determined that such words
were included in the Reimbursement Agreement as a result of a typographical
error) and inserting in lieu thereof the words "any Account Party".

              (f) The introductory phrase in Article VI of the Reimbursement
Agreement, appearing immediately before Section 6.01, is amended to read as
follows:

                         So long as any Letter of Credit is outstanding, any
                   Obligation is outstanding, or the Issuing Bank has any
                   obligation to issue, or the Banks have any obligation to
                   participate in, Letters of Credit,

              (g) Section 6.10 of the Reimbursement Agreement is amended by
adding, immediately preceding the period at the end thereof, the following: "and
except that URC may declare and may pay dividends to, or make distributions to,
URGI the proceeds of which are used solely and immediately to make a Permitted
Ratable Debt Payment".

              (h) Section 6.14(a) of the Reimbursement Agreement is amended by
deleting the words "in an amount" appearing therein and inserting in lieu
thereof the words "in an aggregate amount".

              (i) Section 6.15 of the Reimbursement Agreement is amended by
deleting the phrase "in respect of insurance contracts or policies" appearing in
clause (b) thereof and inserting in lieu of such phrase the phrase "incurred
under insurance contracts or policies or under reinsurance contracts or
policies" and by adding, immediately before the comma at the end of clause (c)
thereof, the phrase "or reinsurance policies or contracts".

              (j) Section 6.24(e) of the Reimbursement Agreement is amended by
deleting the words "Controlled Group watch" (it having been determined that such
words were included in the Reimbursement Agreement as a result of a
typographical error) and inserting in lieu thereof the words "Controlled Group
which".

              (k) Section 8.07 of the Reimbursement Agreement is amended by
deleting the words "Loan Parties" (it having been determined that such words
were included in the Reimbursement Agreement as a result of a typographical
error) and inserting in lieu thereof the words "Credit Parties". Section 8.07 of
the Reimbursement Agreement is further amended by adding, as a new last sentence
thereof, the following:

                   If an Agent receives from a Bank interest for any day on a 
                   payment due under this Section, as contemplated by the
                   immediately preceding sentence, and subsequently receives
                   interest from a Credit Party for such day with respect to the
                   cost, expense or other item giving rise to such payment, the
                   amount of such interest received by such Agent from a Credit
                   Party shall be forthwith paid to such Bank.


              (l) Section 8.02(a) of the Reimbursement Agreement is amended by
adding, as a new second sentence thereof, the following:

                   Neither the Documentation Agent nor the Syndication Agent 
                   shall have any duties or responsibilities in its capacity as 
                   such (as opposed to its capacity as a Bank) under this
                   Agreement.
<PAGE>   4
              (m) Schedule 3.24 to the Reimbursement Agreement is amended by
adding thereto as a new item 4 the following: "Guarantee by Underwriters
Reinsurance Company of loans in an aggregate principal amount not exceeding
$50,000,000, and of related obligations, in each case under the Credit Agreement
referred to in item 3 of this Schedule, as the same may be amended from time to
time".

              SECTION 3. EFFECT OF AMENDMENT. The Reimbursement Agreement, as
amended by this Amendment, is in all respects ratified, approved and confirmed
and shall, as so amended, remain in full force and effect.

              SECTION 4. GOVERNING LAW. This Amendment shall be deemed to be a
contract under the laws of the Commonwealth of Pennsylvania and for all purposes
shall be governed by and construed and enforced in accordance with the laws of
said Commonwealth.

              SECTION 5. COUNTERPARTS. This Amendment may be executed in any
number of counterparts and by the different parties hereto on separate
counterparts, each of which, when so executed, shall be deemed an original, but
all such counterparts shall constitute but one and the same instrument.

              IN WITNESS WHEREOF, the parties hereto have executed this
Amendment as of the date first above written.

                             VENTON UNDERWRITING GROUP LIMITED, AS AN
                             ACCOUNT PARTY


                             By:             /s/ D.M. Slade
                                ------------------------------------------------
                                  (Signature)
                             Name:   D.M. Slade 
                                  ----------------------------------------------
                             Title:  Director
                                   ---------------------------------------------



                             VENTON UNDERWRITING LIMITED, AS AN ACCOUNT
                             PARTY


                             By:             /s/ D.M. Slade
                                ------------------------------------------------
                                  (Signature)
                             Name:   D.M. Slade 
                                  ----------------------------------------------
                             Title:  Director
                                   ---------------------------------------------



                             TALBOT UNDERWRITING LIMITED, AS AN ACCOUNT PARTY


                             By:             /s/ D.M. Slade
                                ------------------------------------------------
                                  (Signature)
                             Name:   D.M. Slade 
                                  ----------------------------------------------
                             Title:  Director
                                   ---------------------------------------------
<PAGE>   5
                             UNDERWRITERS RE GROUP, INC., AS A GUARANTOR

                             By:       /s/ Stephen C. Kolakowski
                                ------------------------------------------------
                                (Signature)
                             Name:   Stephen C. Kolakowski
                                  ----------------------------------------------
                             Title:  Chief Financial Officer
                                   ---------------------------------------------



                             UNDERWRITERS REINSURANCE COMPANY, AS A GUARANTOR


                             By:            /s/ Stuart M. de Haaff
                                ------------------------------------------------
                                (Signature)
                             Name:   Stuart M. de Haaff
                                  ----------------------------------------------
                             Title:  Senior Vice President
                                   ---------------------------------------------



                             MELLON BANK, N.A., AS A BANK, AS ISSUING BANK, AS
                             ADMINISTRATIVE AGENT, AND AS CO-ARRANGER


                             By:                /s/ Timothy J. Marchando
                                ------------------------------------------------
                                 (Signature)
                             Name:   Timothy J. Marchando
                                  ----------------------------------------------
                             Title:  Vice President
                                   ---------------------------------------------



                   DRESDNER BANK AG, NEW YORK AND GRAND
                   CAYMAN BRANCHES, AS DOCUMENTATION AGENT AND AS A
                   BANK


                   By:  /s/ Lloyd C. Stevens     By:  /s/ Deborah Slusarczyk    
                      ------------------------      ----------------------------
                      (Signature)                   (Signature)                 
                   Name:  Lloyd C. Stevens       Name:  Deborah Slusarczyk      
                        ----------------------        --------------------------
                   Title: Vice President         Title: Vice President          
                         ---------------------         -------------------------



                   DRESDNER KLEINWORT BENSON NORTH AMERICA
                   LLC AS CO-ARRANGER


                   By:  /s/ Lloyd C. Stevens     By:  /s/ Deborah Slusarczyk
                      ------------------------      ----------------------------
                      (Signature)                   (Signature)
                   Name:  Lloyd C. Stevens       Name:  Deborah Slusarczyk
                        ----------------------        --------------------------
                   Title: Vice President         Title: Vice President
                         ---------------------         -------------------------


<PAGE>   1
ALLEGHANY CORPORATION
ANNUAL REPORT 1998
<PAGE>   2
TO OUR STOCKHOLDERS

         The year 1998 was one of significant developments for Alleghany and its
stockholders. On June 17, Alleghany completed the tax-free spin-off of Chicago
Title Corporation to Alleghany stockholders, thereby creating a major new
independent title insurance company with an initial market capitalization in
excess of $1.0 billion. As a part of the spin-off, the common stock of Chicago
Title was listed on the New York Stock Exchange under the symbol "CTZ."

         The spin-off was of significant benefit to our stockholders, leaving
Alleghany a somewhat smaller but more focused company. During 1998, all our
other operating units continued to expand through both internal growth and
acquisitions. We expect such expansion to continue in 1999.

         Our most significant acquisition in 1998 was the purchase on October 23
of Venton Holdings Ltd. by Underwriters Re Group, Inc. Venton, through its
subsidiaries, is a managing agent and provider of corporate capital for
syndicates in the Lloyd's insurance market and also has operations in Bermuda.
The purchase, made for approximately $190 million principally in cash, will
increase both the scale and the scope of Underwriters Re Group's operations in
1999 and beyond. In connection with the purchase, Underwriters Re Group
established a letter of credit facility in the amount of $225 million to support
the underwriting activities of the Lloyd's syndicates managed by Venton.

         Our net earnings from continuing operations in 1998 were $63.4 million,
or $8.74 per share, compared with $51.4 million, or $7.05 per share, in 1997.
Net earnings including discontinued operations were $96.1 million, or $13.25 per
share, in 1998 compared with $105.7, or $14.50 per share, in 1997. Discontinued
operations consist of the spun-off operations of Chicago Title.

         The comparative contributions to Alleghany's earnings made by
Alleghany's operating units, parent-company operations and discontinued
operations were as follows (in millions):

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------
                                                Year Ended              Quarter Ended
                                                December 31              December 31
- ----------------------------------------------------------------------------------------
                                             1998         1997        1998        1997
- ----------------------------------------------------------------------------------------
<S>                                        <C>          <C>          <C>         <C>    
Underwriters Re Group                      $  52.4      $  44.4      $ 10.0      $  12.7
Alleghany Asset Management                    35.7         19.8         7.8          5.2
World Minerals                                23.6         27.5         8.7          9.2

Parent company and other
   Other                                   $ (21.0)     $ (15.1)     $ (6.9)     $  (7.8)
   Security transactions                       0.3        (11.3)        --          (8.0)
- ----------------------------------------------------------------------------------------
                                           $ (20.7)     $ (26.4)     $ (6.9)     $ (15.8)
Earnings from continuing operations,
   before income taxes                     $  91.0      $  65.2      $ 19.6      $  11.3
- ----------------------------------------------------------------------------------------
Earnings from continuing
   operations, net                         $  63.4      $  51.4      $ 13.4      $  13.3
Earnings from discontinued
   operations, net (Chicago Title)            32.7         54.3         0           15.5
- ----------------------------------------------------------------------------------------
   Net earnings                            $  96.1      $ 105.7      $ 13.4      $  28.8
========================================================================================
</TABLE>


                                       3

<PAGE>   3
         Underwriters Re Group, Inc. contributed pre-tax earnings of $52.4
million in 1998, an increase of more than 18 percent over 1997 pre-tax earnings,
primarily reflecting growth in investment income resulting from an increase in
invested assets. Reinsurance premiums remained level with 1997 as reinsurance
markets continued to be highly competitive. In such markets, Underwriters Re
Group continues to focus on coverages requiring specialized underwriting
expertise or a high degree of actuarial analysis, such as property catastrophe
exposures, as well as its primary insurance business conducted through its
insurance subsidiaries and underwriting centers. In addition, the acquisition of
Venton is expected almost to double the premium volume of Underwriters Re Group.


         Underwriters Re Group's 1998 results do not include the results of
Venton for the period following its acquisition on October 23, 1998. During
1999, Venton's results will be reported on a one quarter lag due to the
complexity of converting Lloyd's accounting information to U.S. accounting
principles. Thus, results of Venton for the period from October 23 to December
31, 1998 will be included in the results of Underwriters Re Group for the first
quarter of 1999. However, 1998 results of Underwriters Re Group do reflect the
loss of investment income on the $185.4 million of its investment securities
used to fund the acquisition.

         As of December 31, 1998, the statutory surplus of Underwriters Re
Group's principal subsidiary, Underwriters Reinsurance Company, was $602.6
million making Underwriters Reinsurance the tenth-largest domestic professional
reinsurer in terms of statutory surplus, according to the Reinsurance
Association of America.

         Alleghany Asset Management, Inc. and its subsidiaries, The Chicago
Trust Company, Montag & Caldwell, Inc. and Chicago Deferred Exchange
Corporation, contributed pre-tax earnings of $35.7 million in 1998, a 79 percent
increase over 1997. Having recovered from the turmoil experienced in the U.S.
financial markets in August and September 1998, the improved results of
Alleghany Asset Management are due primarily to an increase in assets under
management, largely at Montag & Caldwell, and reflect its strong long-term
performance record in managing equity investments. Assets under management
totalled $35.6 billion at year-end 1998, compared with $23.1 billion at year-end
1997.

         In 1998, Alleghany Asset Management also expanded its product line by
acquiring a small capitalization value equity manager and a 40 percent interest
in a small capitalization growth equity manager, and by entering into a
definitive agreement to acquire Blairlogie Capital Management, an Edinburgh,
Scotland based investment manager managing approximately $800 million in assets,
principally in non-U.S. equities.

         World Minerals Inc. contributed pre-tax earnings of $23.6 million, a
decrease of 14 percent from its 1997 pre-tax earnings. These results reflect
increased competitive pressure and increased operating costs, primarily at World
Minerals' Lompoc, California diatomite operations. Lompoc's operations were
affected in early 1998 by severe El Nino storms and rail car shortages on the
Union Pacific Railroad. Increased spending was also incurred for research,
operations and engineering. We are disappointed with the 1998 results of World
Minerals but are optimistic that 1999 will prove to be a better year.

         The results of the Heads and Threads division of Alleghany were
affected by the increasingly competitive markets for fastener imports. Heads and
Threads has positioned itself for future growth through its acquisition of
Gardenbolt International Corp. of Sayreville, New Jersey and a now completed
restructuring of its computer systems.


                                       4
<PAGE>   4
         Alleghany Properties, Inc. continued to benefit from improved real
estate conditions in California, which resulted in considerably increased
property sales.

         Alleghany's 1998 results included net gains of $0.3 million on
investment transactions from continuing operations before taxes, compared with
net losses of $11.3 million in 1997 resulting principally from the write-down of
certain investment securities.

         As of March 1, 1999, Alleghany beneficially owned approximately 22.29
million shares, or 4.7 percent, of the outstanding common stock of Burlington
Northern Santa Fe Corporation, which had an aggregate market value on that date
of approximately $723.2 million, or $32.4375 per share. The aggregate cost of
such shares was approximately $253.7 million, or $11.38 per share. Burlington
Northern's record continues to demonstrate its position as the premier U.S.
railroad.

         Alleghany common stockholders' equity per share was $172.51 at year-end
1998, compared with $160.91 at year-end 1997, as adjusted for the Chicago Title
spin-off.

         Although we have become a smaller but more focused company in 1998, our
goal remains the same: to continue to generate a growing, high quality stream of
earnings for our stockholders.


Yours sincerely,


/s/ John J. Burns, Jr.              /s/ F.M. Kirby
- -----------------------------       -----------------------------
President                           Chairman of the Board
March 16, 1999

[PHOTO -- SEE EDGAR APPENDIX]
Photo caption
Seated, F.M. Kirby, Chairman of the Board;
Standing, John J. Burns, Jr., President

                                       5
<PAGE>   5
UNDERWRITERS RE GROUP, INC.

         Underwriters Re Group, headquartered in Calabasas, California, provides
reinsurance through its principal subsidiary, Underwriters Reinsurance Company,
to property and casualty insurers and reinsurers. Although it writes many lines
of business, Underwriters Reinsurance concentrates on coverages requiring
specialized underwriting expertise or a high degree of actuarial analysis.
Underwriters Reinsurance operates throughout the United States and Canada,
either as a licensed carrier or accredited reinsurer, and has branch offices in
Chicago, Houston, New York and Calabasas. Underwriters Re Group also provides
insurance through its insurance subsidiaries and underwriting centers.

         On October 23, 1998, Underwriters Reinsurance acquired Venton Holdings
Ltd. for approximately $181.1 million in cash and Alleghany stock valued at
approximately $8.9 million. Venton, through its subsidiaries, is a managing
agent and provider of corporate capital for syndicates in the Lloyd's insurance
market and also has operations in Bermuda. In connection with the purchase,
Underwriters Reinsurance established a letter of credit facility in the amount
of $225 million to support the underwriting activities of the Lloyd's syndicates
managed by Venton.

         Underwriters Re Group contributed pre-tax earnings of $52.4 million on
revenues of $508.6 million in 1998, compared with $44.4 million on revenues of
$453.1 million in 1997 and $37.0 million on revenues of $410.9 million in 1996.

         Underwriters Re Group's results in 1998 reflect growth in its primary
insurance operations but level reinsurance premiums due to highly competitive
reinsurance markets. This resulted in a slowing in the growth of the operations
of Underwriters Re Group compared with past years. Underwriters Re Group
recorded in 1998 a 5.8 percent, or $24.0 million, increase in net written
premiums from 1997 compared with a 15 percent, or $53.9 million, increase in
1997 from 1996 levels and a 23 percent, or $68.3 million, increase in 1996 from
1995 levels. Commissions and brokerage expenses increased primarily because of
the change in the mix of treaty business having higher ceding commissions paid
but lower assumed levels of risk. Other insurance expenses also increased during
1998 as emphasis was placed on the growth of Underwriters Re Group's primary
insurance business.

         Underwriters Re Group's growth in premiums is shown below (in
millions):

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------
                                          1998          1997          1996
- ----------------------------------------------------------------------------
<S>                                    <C>           <C>           <C>      
Net written reinsurance premiums       $   384.2     $   369.0     $   335.0
Net written insurance premiums              54.0          45.2          25.3
- ----------------------------------------------------------------------------
   Net written premiums                $   438.2     $   414.2     $   360.3
============================================================================
</TABLE>

         Pre-tax investment income totalled $80.4 million in 1998, compared with
$75.6 million in 1997 and $63.2 million in 1996, reflecting an increase in
invested assets. 1998 investment income was negatively affected by lower
interest rates during 1998 compared with the previous year's levels and the use
in the fourth quarter of 1998 of $185.4 million in investment securities to
acquire Venton. Underwriters Re Group recorded a pre-tax gain of $7.4 million on
investment transactions in 1998, compared with a pre-tax gain of $932 thousand
in 1997 and a pre-tax gain of $910 thousand in 1996.


                                       7
<PAGE>   6

         Underwriters Re Group's 1998 results do not include the results of
Venton for the period following its acquisition on October 23, 1998. Venton's
results will be reported on a one quarter lag due to the complexity of
converting Lloyd's accounting information to U.S. accounting principles. Thus,
results of Venton for the period from October 23 to December 31, 1998 will be
included in the results of Underwriters Re Group for the first quarter of 1999.

REINSURANCE 

         Underwriters Reinsurance carries an "A+" (Superior) rating from A.M.
Best Company, Inc. and a claims-paying ability rating of "AA-" (Excellent) from
Standard & Poor's. As of December 31, 1998, the statutory surplus of
Underwriters Reinsurance was $602.6 million making Underwriters Reinsurance the
tenth-largest domestic professional reinsurer in terms of statutory surplus,
according to the Reinsurance Association of America.

         Brokers are the principal source of the reinsurance business of
Underwriters Reinsurance; the remainder of its reinsurance business is obtained
directly from ceding companies. By working primarily through brokers,
Underwriters Reinsurance does not need to maintain a large sales organization
which, during periods of reduced premium volume, could result in significant
non-productive overhead. In addition, Underwriters Reinsurance believes that
submissions from the broker market, including those for certain targeted
specialty coverages, are more numerous and diverse than would be available
through a salaried sales organization. Consequently, Underwriters Reinsurance is
able to exercise greater selectivity than would usually be possible in dealing
directly with ceding companies.

         Underwriters Reinsurance maintains a disciplined underwriting program
with a focus on generating profitable business rather than on increasing market
share. An important element of this program is to respond quickly to market
opportunities (such as increased demand or more favorable pricing) by adjusting
the mix of property and casualty business it writes.

         Underwriters Reinsurance concentrates on coverages which require a high
degree of underwriting and actuarial expertise. This expertise is also required
for certain business that Underwriters Reinsurance has developed in
nontraditional areas, such as providing capital in combination with reinsurance
and providing reinsurance to alternative risk markets, including risk retention
groups, captives, underwriting syndicates and self-insured funds and
associations. Nontraditional reinsurance may also refer to reinsurance contracts
which limit exposure to loss through the use of aggregate loss limits, loss
ratio caps or other loss containment features. Underwriters Reinsurance believes
that coverages which require high levels of underwriting and actuarial expertise
offer greater potential for favorable results than more general coverages, based
on current market conditions.

PRIMARY INSURANCE 

         Underwriters Re Group established Commercial Underwriters Insurance
Company at the end of 1992, acquired an inactive Nebraska insurance company
which was renamed Underwriters Insurance Company in 1994, and established
Newmarket Underwriters Insurance Company in 1996 to capitalize on advantageous
market conditions for certain primary insurance business lines. Commercial
Underwriters, Underwriters Insurance and Newmarket Underwriters are rated "A+"
(Superior) by Best's because Underwriters Reinsurance reinsures a significant
share of their business.


                                       9
<PAGE>   7
         Commercial Underwriters, Underwriters Insurance and Newmarket
Underwriters are property and casualty insurance companies. Commercial
Underwriters focuses on specialized primary insurance lines in California and
New York on an admitted basis and in 45 other states, Guam and the District of
Columbia on an approved nonadmitted basis. Underwriters Insurance, licensed in
48 states and the District of Columbia, focuses on marine insurance, primary
liability policies for medium- to large-sized businesses and certain
professional liability coverages. Newmarket Underwriters, licensed in New
Hampshire and qualified on a nonadmitted basis in New York and California,
focuses on general liability policies for medium- to large-sized businesses.

         The Center Insurance Services, Inc. was established in 1995. The Center
acts as agent and underwrites business on behalf of Commercial Underwriters,
Underwriters Insurance and Newmarket Underwriters and at present, to a lesser
extent, non-affiliated insurers. Business underwritten by The Center includes
marine insurance, products liability insurance, general liability insurance for
certain insureds with self-insured retentions and vehicle service contracts.

INTERNATIONAL OPERATIONS 

         Representative offices were established in Barbados at the end of 1995
and in London in 1996 to capitalize on international underwriting opportunities.
In 1995, Underwriters Re Group also made an investment in a reinsurance company
in Barbados.

         The acquisition of Venton and its subsidiaries is expected to enhance
the competitive position of Underwriters Reinsurance by providing access to the
Lloyd's and Bermuda markets, as well as diversifying the group's growth and
earnings prospects outside the United States.

         Venton participates in the Lloyd's market through its subsidiaries
Venton Underwriting Agencies Ltd. and Venton Underwriting Ltd. Venton Agencies
is the managing agency for three Lloyd's syndicates: Syndicate 376 (non-marine),
Syndicate 1183 (marine) and Syndicate 1207 (non-marine). For the calendar 1999
year of account, the three syndicates have available capacity of approximately
pound sterling 301.8 million (equivalent to a maximum gross premiums written of
approximately $645 million). Venton Underwriting and two affiliated companies
are corporate names at Lloyd's which provide capital to the syndicates managed
by Venton Agencies, including, on an exclusive basis, to Syndicate 1207. For
calendar year 1999, Venton Underwriting and the affiliated companies provided
approximately pound sterling 234.4 million, or 77.7 percent, of the pound
sterling 301.8 million available capacity referred to above.

         The insurance and reinsurance business underwritten by Venton is
broad-based with a diversified product mix of property, casualty, marine and
other risks. Its risks are located around the world, primarily in the United
States, the United Kingdom, Western Europe, Canada and Australia.


                                       10
<PAGE>   8
ALLEGHANY ASSET MANAGEMENT, INC.

         Alleghany Asset Management conducts a financial services business
through its subsidiaries, The Chicago Trust Company, a Chicago-based investment
firm with trust powers, Montag & Caldwell, Inc., an Atlanta-based investment
counseling firm, Chicago Deferred Exchange Corporation, which facilitates
certain tax-deferred property exchanges and Security Trust Company, a San
Diego-based trust company.

         Alleghany Asset Management posted the following results (in millions):

<TABLE>
<CAPTION>
- ----------------------------------------------------------------
                                 1998         1997        1996
- ----------------------------------------------------------------
<S>                           <C>          <C>          <C>     
Revenues                      $  125.1     $   78.8     $   53.4
Pre-tax earnings              $   35.7     $   19.8     $    9.7
Assets under management       $ 35,600     $ 23,100     $ 14,500
================================================================
</TABLE>

         Growth in profitability of Alleghany Asset Management is largely
dependent on growth in assets under management, through market appreciation of
existing assets and new business (new clients and additional investments from
existing clients). Approximately 85 percent of Alleghany Asset Management's
assets under management are institutional assets where competition is intense
and success is driven primarily by investment performance. Both Montag &
Caldwell and Chicago Trust have recorded very strong investment results over the
past three years and have received high ratings in various consultant and mutual
fund data bases. The $12.5 billion growth in assets under management from 1997
to 1998 included new business of approximately $5.5 billion, compared with the
$8.6 billion growth in assets under management from 1996 to 1997, which included
new business of approximately $4.2 billion.

         Due to the turmoil in U.S. equity markets in August and September of
1998, assets under management declined by six percent in the third quarter from
the second quarter levels, but increased nineteen percent in the fourth quarter
from the third quarter of 1998. Future volatility and reduced market valuations
could adversely affect assets under management and the future results of
Alleghany Asset Management.

         During 1998, Alleghany Asset Management expanded its product line by
adding a small capitalization value equity product and acquiring a 40 percent
interest in Veredus Asset Management LLC, a Louisville, Kentucky based small
capitalization growth equity manager with about $100 million in assets under
management. In addition, Alleghany Asset Management entered into a definitive
agreement to acquire Blairlogie Capital Management, an Edinburgh, Scotland based
investment manager that manages approximately $800 million in assets,
principally in non-U.S. equities. Blairlogie would provide Alleghany Asset
Management with its first international investment manager.

         Alleghany Asset Management provides distribution and marketing services
to its investment managers through the 401(k) services offered by Chicago Trust
and the Alleghany Funds, a mutual fund family offering ten no-load mutual funds.
Chicago Trust's full service 401(k) administration group provides trustee, plan
design, investment management and other administrative services. Such services
are marketed through internal sales forces in Chicago and Atlanta as well as
consultants and brokerage sources. The Alleghany Funds are marketed primarily
through registered investment advisers, broker-dealers and direct sales to
institutional clients, as well as through intermediary services, including
Schwab and Fidelity.


                                       11
<PAGE>   9
MONTAG & CALDWELL 
Founded in 1945, Montag & Caldwell, one of the Southeast's oldest investment
management firms, concentrates on managing large capitalization growth equity
and balanced portfolios for institutional, mutual fund and high net worth
clients. Montag & Caldwell believes that success in the institutional investment
business is dependent upon a disciplined and consistently applied investment
process, which has translated into outstanding investment results. Montag &
Caldwell's equity results have consistently placed the firm among the top money
managers in its category.

         Montag & Caldwell's assets under management have increased
significantly, driven by excellent equity returns and strong new business
activity. At year-end 1998, Montag & Caldwell had $25.5 billion in assets under
management, compared with $15.4 billion at year-end 1997 and $8.4 billion at
year-end 1996.

         Montag & Caldwell targets separate accounts of $40 million and higher
through pension consultants or direct calls to prospective clients. Its
investment expertise is also available through the Alleghany Funds. Montag &
Caldwell advises two of the Alleghany Funds' mutual funds, with approximately
$2.3 billion in assets under management at year-end 1998.

CHICAGO TRUST 
Chicago Trust and its predecessors have managed assets for investors since 1887.
Chicago Trust is an investment firm with full trust powers engaged in the
following lines of business: institutional investment management, full service
401(k) administration, personal trust and investment services and administration
of the Alleghany Funds. At year-end 1998, Chicago Trust had $10.1 billion in
assets under management, compared with $7.7 billion at year-end 1997 and $6.1
billion at year-end 1996.

         Chicago Trust manages about $4.4 billion in institutional equity and
fixed income accounts of which approximately $1.5 billion comprise the
investment portfolio of Underwriters Re Group. Chicago Trust specializes in
fixed income and large capitalization equity money management for institutional
clients. Its fixed income results have consistently placed Chicago Trust among
the top money managers in its category. The fixed income and equity products are
marketed through pension consultants and directly to plan sponsors. Chicago
Trust also advises seven mutual funds of the Alleghany Funds, with approximately
$1.1 billion in assets under management at year-end 1998.

         Chicago Trust's personal trust and investment services business serves
the investment and estate planning needs of individuals and families, mainly in
the metropolitan Chicago area, and had about $1.8 billion in assets under
management at year-end 1998. Chicago Trust believes that the business is
well-positioned to benefit from growth in family wealth and the demographics of
an aging baby boom generation.

         Chicago Trust's full service 401(k) business administers about $2.9
billion of assets, approximately half of which is invested in the Alleghany
Funds and collective funds managed by the subsidiaries of Alleghany Asset
Management, and the remainder of which is invested in third-party managed funds.


                                       13
<PAGE>   10
ALLEGHANY FUNDS
Alleghany Funds had approximately $3.4 billion in assets under management at
December 31, 1998, compared with $1.9 billion at year-end 1997. Montag &
Caldwell Growth Fund and The Chicago Trust Growth & Income Fund experienced the
greatest increase in assets under management from year-end 1997 to year-end
1998, adding a total of $1.3 billion. The ten no-load mutual funds in the
Alleghany Funds family consist of five equity funds, two balanced funds, two
fixed income funds and a money market fund. Current information with respect to
the Alleghany Funds can be found on its website, www.alleghanyfunds.com.

CHICAGO DEFERRED EXCHANGE AND SECURITY TRUST 
Chicago Deferred Exchange was established in 1989 and facilitates, with the
assistance of Chicago Trust, tax-deferred exchanges of like-kind property. In
1998, Chicago Deferred Exchange facilitated more than 2,200 exchanges with
aggregate asset values exceeding $5.0 billion. Chicago Deferred Exchange acts as
a qualified intermediary, holding and investing the cash proceeds from the sale
of property relinquished by a taxpayer in a qualified trust account, for which
Chicago Trust acts as trustee, until replacement property is acquired. Security
Trust provides trust, investment and tax-deferred property exchange services in
California.


                                       14
<PAGE>   11
WORLD MINERALS INC.

         World Minerals, headquartered in Santa Barbara, California, conducts a
worldwide industrial minerals business through its own operations and those of
its subsidiaries, Celite Corporation and Harborlite Corporation.

         World Minerals contributed pre-tax earnings of $23.6 million on
revenues of $201.1 million in 1998, compared with $27.5 million on revenues of
$203.3 million in 1997 and $18.0 million on revenues of $198.5 million in 1996.
The 1998 results reflect increased competitive pressure and increased operating
costs, primarily at World Minerals' Lompoc, California diatomite operations.
Lompoc's operations were affected in early 1998 by severe El Nino storms and
rail car shortages on the Union Pacific Railroad. Increased spending was also
incurred for research, operations and engineering. Revenues and pre-tax earnings
increased in 1997 from the prior year due to increased sales and profit margins
achieved by World Minerals' non-Asian diatomite operations.

         The mid-1990's marked a period of resurgent economic activity in most
world markets. During this period, World Minerals enhanced its position in both
of its core businesses, diatomite and perlite, through acquisitions of and
strategic investments in mining, processing, distribution and sales facilities.
World Minerals also acquired the minority interests in Harborlite. In 1998,
Celite acquired additional diatomite reserves in Lompoc, California. In
addition, World Minerals continued to increase its spending in new product
development, seeking ways to put the unique properties of its industrial
minerals to work in new applications.

         In 1998, however, economic activity in Asia and Latin America slowed,
resulting in a decrease in net sales in and to these areas of the world. This
trend, if continued, could have an adverse impact on World Minerals' earnings in
1999. World Minerals expects that its enhanced position in its core businesses
will help to offset any decline in sales.

         Celite is believed to be the world's largest producer of filter-aid
grade diatomite, a silica-based mineral consisting of the fossilized remains of
microscopic freshwater or marine plants.

[MAP -- SEE EDGAR APPENDIX]


                                       15
<PAGE>   12
Diatomite is used as a filter aid in the production of beer, fruit juice, wine,
water, sweeteners, fats and oils, pharmaceuticals, chemicals, lubricants and
petroleum; it is also used as a filler, mainly in paints, and as an anti-block
agent in plastic film.

         Celite is also a producer of calcium and magnesium silicate products,
which are used to convert liquid, semi-solid and sticky ingredients into dry,
free-flowing powders in the production of rubber, sweeteners, flavorings and
pesticides.

         Harborlite is believed to be the world's largest producer of perlite
filter aids and, as a seller of perlite ore, is one of the world's largest
merchant producers of perlite ore. Perlite ore is a volcanic rock containing a
small amount of water that causes the ore to "pop" when heated, expanding it up
to twenty times its original volume. Harborlite sells perlite ore to companies
that expand it for use primarily in the manufacture of roofing board, formed
pipe insulation, acoustical ceiling tile and filter aids. Harborlite also
expands perlite in its own expansion plants in the United States and Europe.
Most of this expanded perlite is sold as a filter aid to companies in the
brewing, food, wine, sweetener, pharmaceutical, chemical and lubricant
industries, or as a filler and insulating medium to companies in the
construction industry.

         World Minerals focuses on customer and technical service. Its Research
and Development group uses state of the art analytical instrumentation and
techniques to seek ways to put the unique properties of its industrial minerals
to work in new applications, as well as to refine minerals processing methods to
yield higher purity and more consistent finished products. The Technical
Services group helps to identify the best possible grade of industrial minerals
for each customer process and assists in optimizing the customer's manufacturing
process to achieve the highest possible value from World Minerals' products.

         World Minerals conducts its business on a worldwide basis, with mining
or processing operations in eleven countries. While World Minerals believes that
the international scope of its operations gives it some competitive advantages,
international operations can be subject to additional risks, such as currency
fluctuations, changes in foreign legal requirements and political instability.
World Minerals minimizes its exposure to the risk of foreign currency
fluctuation by closely monitoring its methods of operating in each country and
by adopting strategies responsive to changing economic and political
environments. It is not currently expected that any continued currency turmoil
in the Far East or Latin America will have a material adverse impact on World
Minerals' earnings in 1999.


                                       17
<PAGE>   13
HEADS AND THREADS

         The Heads and Threads division has been owned by Alleghany since 1974.
Headquartered in Northbrook, Illinois, Heads and Threads is believed to be one
of the nation's leading importers and distributors of steel fasteners. Nuts,
bolts, screws, washers and other fasteners are imported and resold to fastener
manufacturers and distributors through a network of sales offices and warehouses
in nineteen states. The strength of Heads and Threads lies in its long years of
association with suppliers and customers. Although 1998 results were affected by
the increasingly competitive market of the fastener importing business and costs
relating to the restructuring of its computer systems, Heads and Threads has
been consistently profitable since its acquisition by Alleghany, despite the
cyclical nature of its business and changing market conditions.

         In 1998, Heads and Threads acquired the assets of Gardenbolt
International Corp. of Sayreville, New Jersey, substantially increasing both the
size of Heads and Threads and its presence in East Coast markets. In addition,
it completed the installation and implementation of a new fully-integrated,
enterprise-wide computer system which will enhance the functionality of Heads
and Threads' business operations, including order processing, sales and
inventory management, transportation services and accounting and finance.

         Since Heads and Threads imports virtually all of its fasteners, its
costs are subject to fluctuations in foreign currency and import duties. Costs
also will be impacted by regulations implementing the Fastener Quality Act, the
effective date of which has been postponed to 1999.



ALLEGHANY PROPERTIES, INC.

         Headquartered in Sacramento, California, Alleghany Properties and its
subsidiary own and manage, among other real estate and real estate-related
assets, 23 properties in California. Such properties are comprised of improved
and unimproved commercial land (office, retail and industrial), and improved and
unimproved commercial and residential lots. A major portion of Alleghany
Properties' real estate assets are located in North Natomas, the only large
undeveloped area in the City of Sacramento. Development in the area had been
delayed by flood plain zoning and wildlife habitat issues, both of which have
been resolved allowing development to begin.


                                       19
<PAGE>   14
SELECTED FINANCIAL DATA
Alleghany Corporation and Subsidiaries

(in thousands, except for share and per share amounts)
<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------------------------------
                                                                               Years Ended December 31
- -------------------------------------------------------------------------------------------------------------------------------
                                                    1998             1997             1996             1995             1994
- -------------------------------------------------------------------------------------------------------------------------------
<S>                                              <C>              <C>              <C>              <C>              <C>       
OPERATING DATA
Revenues from continuing operations              $  918,993       $  796,654       $  734,482       $  652,444       $  503,669
- -------------------------------------------------------------------------------------------------------------------------------
Earnings from continuing operations              $   63,381       $   51,400       $   40,470       $   60,366       $   28,236
Earnings from discontinued operations                32,725           54,267           46,578           24,934          109,270
- -------------------------------------------------------------------------------------------------------------------------------
Net earnings                                     $   96,106       $  105,667       $   87,048       $   85,300       $  137,506
- -------------------------------------------------------------------------------------------------------------------------------
Basic earnings per share of common stock:*
Continuing operations                            $     8.74       $     7.05       $     5.50       $     8.21       $     3.89
Discontinued operations                                4.51             7.45             6.32             3.39            15.06
- -------------------------------------------------------------------------------------------------------------------------------
Net earnings                                     $    13.25       $    14.50       $    11.82       $    11.60       $    18.95
- -------------------------------------------------------------------------------------------------------------------------------
Average number of shares of common stock*         7,251,238        7,287,459        7,360,584        7,354,822        7,253,093
===============================================================================================================================
</TABLE>

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------------------------------------
                                                                December 31
                                         1998             1997             1996             1995             1994
- --------------------------------------------------------------------------------------------------------------------
<S>                                   <C>              <C>              <C>              <C>              <C>       
BALANCE SHEET
Total assets                          $4,282,444       $3,700,376       $3,448,433       $3,023,583       $2,515,332
- --------------------------------------------------------------------------------------------------------------------
Long-term debt                        $  439,795       $  389,641       $  404,244       $  276,646       $  270,632
- --------------------------------------------------------------------------------------------------------------------
Common stockholders' equity           $1,247,428       $1,570,935       $1,423,260       $1,320,643       $1,021,193
- --------------------------------------------------------------------------------------------------------------------
Common stockholders' equity per
   share of common stock*             $   172.51       $   213.22       $   192.69       $   178.89       $   136.60
- --------------------------------------------------------------------------------------------------------------------
</TABLE>


Alleghany sold Sacramento Savings Bank on October 31, 1994 and spun off to
Alleghany stockholders shares of Chicago Title on June 17, 1998; accordingly,
the operations of Sacramento Savings have been classified as discontinued
operations for 1994 and certain operations of Chicago Title have been classified
as discontinued operations for each of the five years ended in 1998.

* Restated to reflect subsequent common stock dividends and the adoption of
Statement of Financial Accounting Standards No. 128, "Earnings per Share."



DIVIDENDS, MARKET PRICES AND
RELATED SECURITY HOLDER MATTERS

As of December 31, 1998, there were approximately 1,900 holders of record of
Alleghany common stock. The following table indicates quarterly high and low
prices of the common stock in 1998 and 1997 on the New York Stock Exchange. The
prices have not been adjusted for the spin off. Alleghany's ticker symbol is Y.

- -----------------------------------------------------------------
Quarter Ended             1998                      1997
- -----------------------------------------------------------------
                   High        Low          High         Low
- -----------------------------------------------------------------
March 31          $ 350       $ 278 1/8    $ 216 7/8    $ 206
June 30             378 1/2     220          220          206 1/2
September 30        248         183          256          218 1/2
December 31       $ 205       $ 172        $ 290        $ 254
- -----------------------------------------------------------------

         In 1997 and 1999, Alleghany's Board of Directors declared, as
Alleghany' s dividend on its common stock for that year, a stock dividend
consisting of one share of Alleghany common stock for every fifty shares
outstanding. The 1997 stock dividend was paid in April of that year. In light of
the spin-off of Chicago Title on June 17, 1998, no stock dividend was declared
for 1998. As part of the spin-off, Alleghany distributed three shares of Chicago
Title common stock for each share of Alleghany common stock outstanding.

         Alleghany's ability to pay cash dividends is restricted by the terms of
a revolving credit loan agreement. At December 31, 1998, this agreement
permitted the payment of dividends aggregating approximately $285 million. At
that date about $1.161 billion of Alleghany's consolidated common stockholders'
equity of $1.247 billion was unavailable for dividends or advances to Alleghany
from its subsidiaries, due to limitations imposed by statutes and agreements
with lenders to which those subsidiaries are subject.


                                       22

<PAGE>   15
FINANCIAL CONDITION

         In recent years, Alleghany has followed a policy of maintaining a
relatively liquid financial condition, in the form of cash, marketable
securities, available credit lines and minimal amounts of debt at the parent
company. This has permitted Alleghany to expand its operations through internal
growth at its subsidiaries and through acquisitions or substantial investments
in well-managed operating companies.

         On June 17, 1998, Alleghany completed the tax-free spin-off of Chicago
Title to Alleghany stockholders. Chicago Title and Trust Company paid cash
dividends to Alleghany totalling $9 million in 1998 and $32 million in 1997.
Since the spin-off, Chicago Title is no longer a source of dividends to
Alleghany. Alleghany Asset Management, previously a subsidiary of Chicago Title,
was not a part of the spin-off and remains a source of cash dividends to
Alleghany.

         As of March 1, 1999, Alleghany and its subsidiaries owned about 22.29
million shares, or about 4.7 percent, of the outstanding common stock of
Burlington Northern Santa Fe Corporation ("BNSF") having an aggregate market
value as of such date of approximately $723.2 million, or $32.4375 per share.
The aggregate cost of such shares is approximately $253.7 million, or $11.38 per
share.

         As of March 1, 1999, Alleghany and its subsidiaries owned about 5.64
million shares, or about 5.2 percent, of the outstanding common stock of Armco
Inc.

         Alleghany has declared stock dividends in lieu of cash dividends every
year since 1987 except 1998, which have helped to conserve Alleghany's financial
strength and, in particular, the liquid assets available to finance internal
growth and operating company acquisitions and investments. On April 26, 1999,
Alleghany will pay to stockholders of record on April 1, as its dividend on its
common stock for 1999, a dividend of one share of Alleghany common stock for
every 50 shares outstanding.

         In addition to its liquid assets, Alleghany has a revolving credit
agreement with a bank which provides a commitment for revolving credit loans in
the aggregate principal amount of $200 million. Borrowings have been repaid
promptly in order to keep the facility available for future acquisitions. $18.2
million in borrowings were outstanding under this facility at 1998 year-end and
$16 million were outstanding under this facility at 1997 year-end. This
agreement will mature in July 2000.

         Alleghany has announced that it may purchase shares of its common stock
in open market transactions from time to time. In 1998, Alleghany purchased an
aggregate of 222,564 shares of its common stock for about $72.0 million, at an
average cost of about $324.11 per share. In 1997, Alleghany purchased an
aggregate of 157,174 shares of its common stock for about $33.1 million, at an
average cost of about $210.47 per share.

         At December 31, 1998, about $86.2 million of the equity of Alleghany's
subsidiaries was available for dividends or advances to Alleghany. At that date
about $1.161 billion of $1.247 billion of Alleghany's equity was unavailable for
dividends or advances to Alleghany from its subsidiaries, due to limitations
imposed by statutes and agreements with lenders to which those subsidiaries are
subject. These limitations have not affected Alleghany's ability to meet its
obligations.

         Financial strength is also a high priority of Alleghany's subsidiaries,
whose assets stand behind their financial commitments to their customers and
vendors.


UNDERWRITERS RE GROUP

On October 23, 1998, Underwriters Re Group purchased Venton. Venton, through its
subsidiaries, is a managing agent and provider of corporate capital for
syndicates in the Lloyd's insurance market and also has operations in Bermuda.
The purchase was made for approximately $181.1 million cash and Alleghany stock
valued at approximately $8.9 million. In connection with the purchase,
Underwriters Re Group established a letter of credit facility in the amount of
$225 million to support the underwriting activities of the Lloyd's syndicates
managed by Venton. About $211 million in letters of credit was issued and
outstanding at year-end 1998.

         In 1998, Underwriters Re Group began to pay cash dividends to
Alleghany, with dividends totalling $3.8 million for the year.

         At December 31, 1998, Underwriters Re Group's investment portfolio
(excluding Venton) had a fair value of $1.5 billion and consisted primarily of
high quality fixed maturity securities with an average maturity of 4.5 years and
an effective duration of 3.3 years, and about 7.4 million shares of BNSF common
stock with a market value of $240.8 million at March 1, 1999. Effective duration
measures a portfolio's sensitivity to change in interest rates; a change within
a range of plus or minus 1% in interest rates would be expected to result in an
inverse change of approximately 3.3% in the value of the portfolio of
Underwriters Re Group. The overall fixed maturity portfolio quality is
maintained at a Moody's rating of Aa2, with over 97 percent of all securities
rated investment grade by Moody's as of December 31, 1998. Underwriters Re
Group's portfolio contains no investments of a derivative nature.

         On June 25, 1996, Underwriters Re Group issued $200 million principal
amount of 7-7/8% Senior Notes due 2006. Of the net proceeds of the offering,
$120 million was contributed to the capital of Underwriters Reinsurance, $50
million was used to repay indebtedness under Underwriters Re Group's credit
agreement, and the remainder is being used for general


                                       24

<PAGE>   16
FINANCIAL CONDITION (CONTINUED)


corporate purposes. As of December 31, 1998, the statutory surplus of
Underwriters Reinsurance was $602.6 million.

         Effective December 31, 1998, Underwriters Re Group entered into a
credit agreement with several banks which provides for a commitment for
revolving credit loans in an aggregate principal amount of $43 million, at
interest rates tied to Underwriters Re Group's current debt rating. No amounts
have been drawn under this facility.

ALLEGHANY ASSET MANAGEMENT

The financial services business of Alleghany Asset Management is not a capital
intensive business and adequate funds are generated internally to provide for
the currently foreseeable needs of its business. Alleghany Asset Management paid
cash dividends to Alleghany totalling $8.4 million in 1998.

WORLD MINERALS

As of December 31, 1998, $71 million of indebtedness and $1.3 million of letters
of credit were outstanding under World Minerals' long-term credit facility, and
an additional $2.7 million of short-term debt was outstanding. The amount
available under the long-term facility is required to be reduced periodically,
with final maturity in December 1999. World Minerals is currently renegotiating
its long-term credit facility. The aggregate available long-term borrowing and
letter of credit amount as of December 31, 1998 was $76 million.

HEADS AND THREADS

As of December 31, 1998, $10.1 million in short-term debt was outstanding. In
addition, $2.0 million in irrevocable letters of credit issued to overseas
suppliers was outstanding. Heads and Threads has available lines of credit
totalling $33.0 million.

ALLEGHANY PROPERTIES

As part of Alleghany's sale of Sacramento Savings Bank in 1994, Alleghany,
through its wholly owned subsidiary Alleghany Properties, purchased real estate
and real estate-related assets of Sacramento Savings for about $116 million.
Accordingly, and in recognition that no general loss reserves of Sacramento
Savings were transferred, Alleghany reduced the carrying value of such assets by
about $20 million, net of related tax benefits. Alleghany Properties is
Alleghany's only subsidiary holding substantial real estate investments.

         As of December 31, 1998, Alleghany Properties held 28 loans and
properties having a total book value of approximately $52.9 million, as compared
with 37 loans and properties having a total book value of approximately $61.0
million as of December 31, 1997, and 89 loans and properties having a total book
value of approximately $90.1 million as of October 31, 1994 (the date the assets
were purchased by Alleghany Properties).

         On December 11, 1998, Alleghany Properties issued $40 million aggregate
principal amount of 6.83 percent senior notes due 2004 (the "2004 Notes"). The
2004 Notes will be repaid in five equal annual principal amortization payments
beginning on the second anniversary of their issuance. The proceeds from the
sale of the 2004 Notes were used to pay a dividend of $39.5 million to Alleghany
and the balance was used to cover the expenses of the issuance.

         On February 23, 1995, Alleghany Properties issued $50 million aggregate
principal amount of 8.62 percent senior notes due 2000 (the "2000 Notes"). On
February 23, 1999, Alleghany Properties made its fourth principal payment on the
2000 Notes, including interest accrued thereon, in the amount of $10.9 million,
reducing the outstanding principal to $10.0 million.

         The capital needs of Alleghany Properties consist primarily of various
development costs relating to its owned properties. Adequate funds are expected
to be generated by sales and reimbursements of tax benefits by Alleghany to
provide for the currently foreseeable needs of its business.

         Alleghany management believes that Alleghany and its subsidiaries have
and will have adequate internally generated funds, cash resources and unused
credit facilities to provide for the currently foreseeable needs of its and
their businesses. Alleghany and its subsidiaries have no material commitments
for capital expenditures.

YEAR 2000

The Year 2000 issue arises from computer programs that use two digits rather
than four digits to define the applicable year. This could result in a failure
of information technology systems ("IT systems") and other equipment containing
imbedded technology ("non-IT systems") to correctly read the year 2000, which
could cause significant disruption in business operations. Each of Alleghany and
its subsidiaries has undertaken a four-phase program to determine the extent of
Year 2000 issues within each of its significant IT systems and non-IT systems
and to take appropriate remedial action. The four phases of the program are
assessment, planning, execution and testing. The assessment and planning phases
were completed in early 1998 and execution and testing began thereafter.
Non-compliant systems were reprogrammed or replaced, and then tested. The
execution and testing phases were largely completed by year-end 1998, but some
testing is continuing into 1999. The cost of remediation (including replacement
software and hardware), testing and outside consultant fees is currently
expected to total $4.7 million, of which about $3.8 million has been incurred.


                                       25

<PAGE>   17
FINANCIAL CONDITION (CONTINUED)


         Management has recently engaged an outside consultant to assess the
Year 2000 compliance programs of Alleghany and its subsidiaries. Such assessment
is expected to be completed during the second quarter of 1999. The consultant's
assessment and resulting recommendations will be presented to Alleghany's Board
of Directors and implemented as appropriate.

         Management presently believes that it will be able to timely resolve
the Year 2000 issues affecting the computer systems of Alleghany and its
subsidiaries and that the cost of addressing such matters will not have a
material impact on the business, operations or financial condition of Alleghany
and its subsidiaries. However, the extent to which third-party computer systems
are adversely affected could materially adversely affect the business,
operations or financial condition of Alleghany and its subsidiaries.

         The following is a more detailed report of the state of readiness of
each of Alleghany's operating units:

UNDERWRITERS RE GROUP

Underwriters Re Group has assessed, remediated, tested and returned to
production all of its critical internal IT systems, including
internally-developed applications and purchased software. Initial testing of
main production computer systems was completed during the 1998 third quarter,
and the systems were returned to production. Additional month-end tests will be
performed in the 1999 second quarter to run actual data with expiration dates in
year 2000.

         Other than third-party long distance telephone and data lines and
public utility suppliers of electrical power, Underwriters Re Group's business
operations are not heavily dependent on non-IT technology systems. In the event
of a broader failure of electrical systems, the current uninterrupted power
source of Underwriters Re Group is designed to remain operational long enough to
bring all systems down without data loss. In addition, Underwriters Re Group
plans to manually back-up and shut down all servers on December 31, 1999.
Systems will be restarted when power is available and all critical applications
will be tested.

         Underwriters Re Group realizes that non-compliance by third parties
could impact its business. The possibility exists that a portion of Underwriters
Re Group's distribution channel may not be compliant, that communication with
brokers, ceding companies or agents could be disrupted, that underwriting data
could be unobtainable or that the claim settling process could be delayed.
Underwriters Re Group has contacted its key business partners to determine their
status of compliance and to assess the impact of noncompliance to Underwriters
Re Group. Underwriters Re Group is working closely with all material business
relationships to minimize its exposure to Year 2000 issues, including on-site
visits to identify their state of readiness. Underwriters Re Group will continue
to monitor third party Year 2000 issue readiness to determine whether additional
or alternative measures may be necessary. Such measures may include the
selection of alternate third parties or other actions designed to mitigate the
effects of a third party's lack of readiness.

         Venton is scheduled to replace its non-compliant IT systems with a new
system. The new system has attained Lloyd's markets Year 2000 certification and
is scheduled to be put in operation by the end of the 1999 first quarter. In
light of production delays, however, Venton is updating its contingency plans to
make the existing IT system Year 2000 compliant and to attain Lloyd's
certification of such system by June 30, 1999.

         In addition to issues faced by all industries in assuring Year 2000
compliance in their own computer systems and third-party relationships, the
insurance industry may also face claims asserted under certain insurance and
reinsurance policies for damages incurred by insureds due to Year 2000 computer
problems. Underwriters Re Group is evaluating the potential insurance exposures
arising from Year 2000 problems. A quantification of the insurance industry's or
Underwriters Re Group's potential exposure to Year 2000 losses is not possible,
as policy wordings vary and legal interpretations of possible insurance coverage
for losses are likely to differ from jurisdiction to jurisdiction.

         Underwriters Re Group, through the use of questionnaires and other
methods of determining a client's exposure to Year 2000 losses, has adjusted its
current underwriting practices to address potential insurance exposures for Year
2000 losses. Upon evaluation of the responses to these questionnaires and/or
other information, Underwriters Re Group may in some instances exclude Year 2000
losses or decline to issue or renew a policy. If the responses are considered
appropriate, contracts may be written without express Year 2000 language.

ALLEGHANY ASSET MANAGEMENT

Alleghany Asset Management has assessed, remediated and returned to production
all of its critical internal IT systems. The software products in use by
Alleghany Asset Management and its subsidiaries are primarily from nationally
recognized vendors, which are widely used in the investment and trust
businesses. The installed versions of all software critical to the operations of
Alleghany Asset Management have been certified by their vendors as Year 2000
compliant. Alleghany Asset Management is in the process of testing all software
in use by it, with testing to be completed by June 30, 1999. In addition,
Alleghany Asset Management has identified a limited number of network hardware
devices that are not Year 2000 compliant, 


                                       26
<PAGE>   18
FINANCIAL CONDITION (CONTINUED)


which are scheduled to be replaced by June 30, 1999.

         Other than third-party long distance telephone and data lines and
public utility suppliers of electrical power, Alleghany Asset Management's
business operations are not heavily dependent on non-IT technology systems. The
Chicago based subsidiaries of Alleghany Asset Management have received
certifications from the owner of their headquarters building that the building's
systems are Year 2000 compliant. The telephone system is third-party
administered and maintained, needs upgrades from third-party vendors, and is
scheduled to be compliant by June 30, 1999. The Atlanta and San Diego based
subsidiaries are moving into new leased premises no later than August 1999, and
are obtaining certifications of Year 2000 compliance from the appropriate
parties.

         Alleghany Asset Management utilizes four third-party service providers
for critical business services, including custody, security receipt and
delivery, and income collection services. These providers are nationally
recognized vendors of such services, and have supplied Alleghany Asset
Management with ongoing information regarding their Year 2000 status. All such
providers have certified that their systems are Year 2000 compliant. Due to the
integrated, production nature of such services, the providers have informed
Alleghany Asset Management that it is not feasible for Alleghany Asset
Management to independently test such systems. The vendors have provided proxy
test results, which are being reviewed to ensure that they meet the requirements
of Alleghany Asset Management. Alleghany Asset Management is preparing
contingency plans for each such third-party system, which are to be completed by
March 31, 1999. Alleghany Asset Management plans to retrieve customer account
data at multiple dates prior to January 1, 2000, and, in the event of a third
party failure, will maintain on an interim basis ongoing account activity on
internally maintained systems that have been tested as Year 2000 compliant.

         The business operations of Alleghany Asset Management are heavily
dependent upon a complex worldwide network of IT systems that contain date
fields, including data feeds to Alleghany Asset Management, trading systems,
securities transfer agent operations and stock market links. The ability of
Alleghany Asset Management to minimize the effects of Year 2000 issues is highly
dependent upon the efforts of third parties. The failure of organizations such
as securities exchanges, securities clearing organizations, banks, vendors,
clients or domestic or foreign governmental regulatory agencies to resolve their
own processing issues with respect to Year 2000 in a timely manner could have a
materially adverse effect on the business, results of operations or financial
condition of Alleghany Asset Management. It is not clear, however, that any
adequate contingency plan can be developed for such failures.

WORLD MINERALS 

         As of December 31, 1998, all critical internal IT systems of World
Minerals have been inventoried and assessed and necessary corrections planned
and executed. As a result, all critical non-compliant IT systems have been
upgraded, replaced or reprogrammed. World Minerals expects to complete the
testing of all of its IT systems by June 30, 1999.

         With respect to its non-IT systems (such as plant and mining equipment
containing embedded chips or programmable logic controllers), with the exception
of two plant processing systems which are being replaced or upgraded in the 1999
first half, the assessment, planning and execution phases are complete. World
Minerals believes that, for all internal IT and non-IT systems, it will have all
four phases of its Year 2000 project completed by June 30, 1999.

         World Minerals has also conducted a study as to the Year 2000
compliance of various third parties with which it does business. All material
vendors, suppliers and customers have been asked to certify in writing as to the
status of their own Year 2000 readiness, and World Minerals has developed, or is
in the process of developing, second source suppliers for major purchased items.
Such items include component parts necessary for maintenance and repair of plant
equipment, as well as products used in production, such as bags, soda ash and
pallets. Additionally, second sources have been developed for transportation
companies which deliver the company's products to its customers. At this time,
World Minerals is not aware of any material suppliers or customers who
anticipate difficulty in solving their respective Year 2000 issues.

         While World Minerals expects to have all of its internal systems Year
2000 compliant and fully tested by June 30, 1999, it is possible that unforeseen
events could arise, including a failure of the power grid or telecommunications,
which would have an adverse effect on the business operations of World Minerals.
Notwithstanding the fact that World Minerals has developed second source
suppliers for all major purchased items, one or more of its key third-party
vendors and/or customers could fail. Although it is impossible to determine the
financial impact of such an event, World Minerals does not believe the failure
of any single supplier or customer would have a material adverse effect on its
business, results of operations or financial condition. World Minerals does not
have any single customer which accounts for 5 percent or more of its revenues.

HEADS AND THREADS

Heads and Threads has assessed, planned and executed its internal IT systems and
expects to complete the testing of such systems by June 30, 1999. With respect
to its non-IT systems, including telephone, time clocks, lift trucks, weighing
scales 


                                       27
<PAGE>   19
FINANCIAL CONDITION (CONTINUED)


and a generator, Heads and Threads has received written statements from
suppliers of such systems assuring their Year 2000 compliance.

         As part of its Year 2000 program, Heads and Threads communicated, by
telephone or personal interviews, with its material customers and overseas
suppliers and surveyed a broader group of its customers and suppliers to
determine their state of readiness. Based on the results of these meetings,
telephone calls and surveys, Heads and Threads does not currently believe that
its business operations will be adversely affected by the failure of these third
parties to address adequately their Year 2000 issues. Heads and Threads has also
received written assurances of Year 2000 compliance from its material banking
and insurance providers and shipping companies.

         While Heads and Threads expects to have no interruption of operations
as a result of internal IT and non-IT systems, it will continue to monitor third
parties whose initial response to the communications from Heads and Threads
indicated that they were not yet Year 2000 ready. In this regard, Heads and
Threads will continue to evaluate its need to develop any contingency plans.

ALLEGHANY PROPERTIES

The business operations of Alleghany Properties do not rely on any critical IT
or non-IT systems, other than communication systems, telephone or electrical
systems needed to maintain an office. In addition, Alleghany Properties does not
have any significant external interfaces or vendors upon which it relies.
Nonetheless, Alleghany Properties has engaged an outside consultant to review
its Year 2000 compliance and has implemented such consultant's recommendations.


QUANTITATIVE AND QUALITATIVE MARKET RISK DISCLOSURE

Market risk is the risk of loss from adverse changes in market prices and rates,
such as interest rates, foreign currency exchange rates and commodity prices.
The primary market risk related to Alleghany's non-trading financial instruments
is the risk of loss associated with adverse changes in interest rates. 

         For fixed maturity securities, short-term liquidity needs and the
potential liquidity needs of the business are key factors in managing the
portfolio. The portfolio duration relative to the liabilities' duration is
primarily managed through cash market transactions. For additional information
regarding the fixed maturity portfolio, see the Financial Condition section of
the Management's Discussion and Analysis.

         Alleghany and its subsidiaries invest in equities. Such investments
include about 22.29 million shares of BNSF common stock, which had an aggregate
market value as of March 1, 1999 of approximately $732.2 million, or $32.4375
per share. The aggregate cost of such shares is approximately $253.7 million, or
$11.38 per share. Equity securities are subject to declines in market values.
Alleghany holds its equity investments as available for sale. Any changes in the
market value in these investments, net of tax, would affect Alleghany's
stockholders' equity and comprehensive income.

         The primary market risk for the long-term debt of Alleghany and its
subsidiaries is interest rate risk at the time of refinancing. Alleghany and its
subsidiaries monitor the interest rate environment to evaluate refinancing
opportunities. For additional information regarding the long-term debt of
Alleghany and its subsidiaries, see the Financial Condition section of the
Management's Discussion and Analysis.

         Other than the two interest rate swaps included in the table below,
Alleghany currently does not use derivatives to manage market and interest rate
risks.

         Alleghany, through World Minerals, conducts certain business activities
in foreign countries. World Minerals minimizes its exposure to the risk of
foreign currency fluctuation by, among other things, causing its subsidiaries,
whenever feasible, to declare and pay dividends and to invoice their export
customers in United States dollars or other "hard currencies." World Minerals'
foreign operations do not subject Alleghany to a material risk from foreign
currency fluctuation.

         The table below provides information about Alleghany's financial
instruments that are sensitive to changes in interest rates. For mortgage-backed
and asset-backed securities, the timing of the cash flow of the portfolio is
based on an average prepayment assumption of 300 PSA, which assumes that the
portfolio will prepay at an annual rate of 18 percent. The fixed maturities
portfolio does not include money market instruments. For debt obligations, the
table presents principal cash flows and related weighted average interest rates
by expected maturity dates. For interest rate swaps, the table presents notional
amounts and weighted average interest rates by expected (contractual) maturity
dates. Notional amounts are used to calculate the contractual payments to be
exchanged under the contract. The timing and amount of cash flows relating to
Alleghany's debt obligations and interest rate swaps are determined by the
relevant contractual agreements.


                                       28
<PAGE>   20
<TABLE>
<CAPTION>
December 31, 1998
- -------------------------------------------------------------------------------------------------------------------------- 
Expected Maturity Date
- -------------------------------------------------------------------------------------------------------------------------- 
(dollars in thousands)                                  1999          2000            2001           2002           2003   
- -------------------------------------------------------------------------------------------------------------------------- 
<S>                                                   <C>            <C>            <C>            <C>            <C>      
ASSETS
Fixed maturities:
   U.S. Government, government agency, and
   municipal obligations - excluding mortgaged-
   backed securities                                  $ 56,435       $ 53,572       $ 52,713       $ 99,684       $ 67,499 
      Average interest rate                               6.37%          5.55%          6.24%          6.27%          6.03%
   Mortgaged-backed U.S. government, government
   agency, and municipal obligations                  $ 38,832       $ 35,452       $ 21,385       $ 16,832       $ 13,511 
      Average interest rate                               6.64%          6.60%          6.68%          6.64%          6.64%
   Mortgage/asset-backed securities (all other)       $ 21,764       $ 31,985       $ 17,542       $  8,052       $  2,776 
      Average interest rate                                6.8%          6.47%          6.24%          6.83%          6.85%
   Certificates of deposit                            $  1,333           --             --             --             --   
      Average interest rate                               6.17%          --             --             --             --   
   Commercial paper and bankers' acceptance           $ 49,462           --             --             --             --   
      Average interest rate                               5.16%          --             --             --             --   
   Corporate bonds                                    $ 46,139       $ 38,777       $ 36,681       $ 34,981       $ 43,305 
      Average interest rate                               7.32%          6.53%          6.30%          6.18%          6.10%
   Foreign bonds                                      $    416           --         $  8,605           --             --   
      Average interest rate                               6.35%          --             6.49%          --             --   

LIABILITIES
Long-term debt:
   Fixed rate                                         $ 15,138       $ 18,039       $  8,042       $  8,027       $  8,000 
      Average interest rate                               8.13%          7.82%           6.8%           6.8%          6.83%
   Variable rate                                      $ 96,890           --             --             --             --   
      Average interest rate                               6.45%          --             --             --             --   

INTEREST RATE DERIVATIVES
Interest rate swaps:
   Variable to fixed (Notional amount)                $ 30,000           --             --             --             --   
      Average pay rate                                    7.02%          --             --             --             --   
      Average receive rate                                --             --             --             --             --   
   Variable to variable                                   --             --             --             --             --   
      Pay notional amount                                 --             --             --             --             --   
      Average pay rate                                    --             --             --             --             --   
      Receive notional amount                             --             --             --             --             --   
      Average receive rate                                --             --             --             --             --   
==========================================================================================================================
</TABLE>


<TABLE>
<CAPTION>
December 31, 1998
- -------------------------------------------------------------------------------------------------  
Expected Maturity Date                                                                             
- -------------------------------------------------------------------------------------------------  
(dollars in thousands)                                 Thereafter            Total     Fair Value  
- -------------------------------------------------------------------------------------------------  
<S>                                                   <C>                <C>           <C>         
ASSETS                                                                                             
Fixed maturities:                                                                                  
   U.S. Government, government agency, and                                                         
   municipal obligations - excluding mortgaged-                                                    
   backed securities                                  $   193,038        $ 522,941      $ 537,937  
      Average interest rate                                  5.96%            6.07%                
   Mortgaged-backed U.S. government, government                                                    
   agency, and municipal obligations                  $    50,456        $ 176,468      $ 183,247  
      Average interest rate                                  6.48%            6.59%                
   Mortgage/asset-backed securities (all other)       $    17,631        $  99,750      $ 101,827  
      Average interest rate                                  6.87%            6.61%                
   Certificates of deposit                                   --          $   1,333      $   1,333  
      Average interest rate                                  --               6.17%                
   Commercial paper and bankers' acceptance                  --          $  49,462       $ 49,462  
      Average interest rate                                  --               5.16%                
   Corporate bonds                                    $   102,519        $ 302,402       $310,282  
      Average interest rate                                  6.14%            6.38%                
   Foreign bonds                                      $    27,203        $  36,224       $ 35,888  
      Average interest rate                                  7.38%            7.16%                
                                                                                                   
LIABILITIES                                                                                        
Long-term debt:                                                                                    
   Fixed rate                                         $   205,658        $ 262,904       $262,904  
      Average interest rate                                  7.83%            7.75%                
   Variable rate                                      $    80,000        $ 176,890       $176,890  
      Average interest rate                                   6.0%            6.24%                
                                                                                                   
INTEREST RATE DERIVATIVES                                                                          
Interest rate swaps:                                                                               
   Variable to fixed (Notional amount)                       --         $   30,000                 
      Average pay rate                                       --               7.02%                
      Average receive rate                                   --                --                  
   Variable to variable                                      --                --                  
      Pay notional amount                              $   86,232       $   86,232                 
      Average pay rate                                       5.56%            5.56%                
      Receive notional amount                          $   80,000       $   80,000                 
      Average receive rate                                   6.00%            6.00%                
=================================================================================================  
</TABLE>


FORWARD-LOOKING STATEMENTS

The "Management's Discussion and Analysis of Financial Condition and Results of
Operations" (pages 3-5, 7, 9-11, 13-15, 17, 19, 24-28) and "Quantitative and
Qualitative Market Risk Disclosure" (pages 28-29) contain disclosures which are
forward-looking statements. Forward-looking statements include all statements
that do not relate solely to historical or current facts, and can be identified
by the use of words such as "may," "will," "expect," "project," "estimate,"
"anticipate," "plan" or "continue." These forward-looking statements are based
upon Alleghany's current plans or expectations and are subject to a number of
uncertainties and risks that could significantly affect current plans and
anticipated actions and Alleghany's future financial condition and results. The
uncertainties and risks include, but are not limited to, those relating to
conducting operations in a competitive environment; acquisition activities; the
complexity of integrated computer systems; the success and expense of the
remediation efforts of Alleghany, its subsidiaries and third parties in
achieving Year 2000 compliance and general economic conditions. As a
consequence, current plans, anticipated actions and future financial condition
and results may differ from those expressed in any forward-looking statements
made by or on behalf of Alleghany.


                                       29
<PAGE>   21
CONSOLIDATED BALANCE SHEETS
Alleghany Corporation and Subsidiaries

<TABLE>
<CAPTION>
December 31, 1998 and 1997
- ------------------------------------------------------------------------------------------------------------------
(in thousands, except share amounts)                                                      1998             1997
- ------------------------------------------------------------------------------------------------------------------
<S>                                                                                    <C>              <C>       
ASSETS
Available for sale securities:
   Fixed maturities (amortized cost: 1998 $1,270,279; 1997 $1,255,081)                 $1,301,707       $1,277,566
   Equity securities (cost: 1998 $317,216; 1997 $339,888)                                 824,326          783,433
- ------------------------------------------------------------------------------------------------------------------
                                                                                        2,126,033        2,060,999
- ------------------------------------------------------------------------------------------------------------------
Cash                                                                                       25,441           45,772
Cash pledged to secure trust deposits                                                      56,907            1,336
Notes receivable                                                                           91,536           91,536
Funds held, accounts and other receivables                                                502,721          255,802
Property and equipment - at cost, less accumulated depreciation and amortization          208,698          193,304
Reinsurance receivable                                                                    571,689          387,609
Other assets                                                                              699,419          278,567
Net assets of discontinued operations                                                        --            385,451
- ------------------------------------------------------------------------------------------------------------------
                                                                                       $4,282,444       $3,700,376
- ------------------------------------------------------------------------------------------------------------------

LIABILITIES AND COMMON STOCKHOLDERS' EQUITY
Property and casualty losses and loss adjustment expenses                              $1,554,818       $1,159,070
Other liabilities                                                                         833,541          443,259
Long-term debt of parent                                                                   18,200           16,000
Long-term debt of subsidiaries                                                            421,595          373,641
Net deferred tax liability                                                                150,218          133,241
Trust deposits secured by pledged assets                                                   56,644            4,230
- ------------------------------------------------------------------------------------------------------------------
   Total liabilities                                                                    3,035,016        2,129,441
Commitments and contingent liabilities
Common stockholders' equity:
   (common shares authorized: 1998 and 1997 - 22,000,000;
   common shares issued and outstanding: 1998 - 7,231,224; 1997 - 7,367,551)            1,247,428        1,570,935
- ------------------------------------------------------------------------------------------------------------------
                                                                                       $4,282,444       $3,700,376
- ------------------------------------------------------------------------------------------------------------------
</TABLE>


See accompanying Notes to Consolidated Financial Statements.



                                       30
<PAGE>   22
Consolidated Statements of Earnings
Alleghany Corporation and Subsidiaries

<TABLE>
<CAPTION>
Years Ended December 31,
- ------------------------------------------------------------------------------------------------------------
(in thousands, except per share amounts)                             1998            1997             1996
- ------------------------------------------------------------------------------------------------------------
<S>                                                               <C>             <C>              <C>      
REVENUES
Trust fees                                                        $ 122,913       $  77,341        $  52,259
Net property and casualty premiums earned                           420,809         376,672          346,777
Interest, dividend and other income                                 166,737         149,724          132,960
Net mineral and filtration sales                                    200,815         203,264          198,179
Net gain (loss) on investment transactions                            7,719         (10,347)           4,307
- ------------------------------------------------------------------------------------------------------------
   Total revenues                                                   918,993         796,654          734,482
- ------------------------------------------------------------------------------------------------------------
COSTS AND EXPENSES
Commissions and brokerage expenses                                  113,170          94,444           88,895
Salaries, administrative and other operating expenses               231,970         187,049          168,965
Property and casualty losses and loss adjustment expenses           288,259         261,828          243,725
Cost of mineral and filtration sales                                131,108         130,555          128,681
Interest expense                                                     32,271          32,111           26,573
Corporate administration                                             31,199          25,437           20,253
- ------------------------------------------------------------------------------------------------------------
   Total costs and expenses                                         827,977         731,424          677,092
- ------------------------------------------------------------------------------------------------------------
   Earnings from continuing operations, before income taxes          91,016          65,230           57,390
Income taxes                                                         27,635          13,830           16,920
- ------------------------------------------------------------------------------------------------------------
   Earnings from continuing operations                               63,381          51,400           40,470
DISCONTINUED OPERATIONS
Earnings from discontinued operations, net of tax                    32,725          54,267           46,578
- ------------------------------------------------------------------------------------------------------------
   Net earnings                                                   $  96,106       $ 105,667        $  87,048
============================================================================================================
BASIC EARNINGS PER SHARE OF COMMON STOCK:*
   Continuing operations                                          $    8.74       $    7.05        $    5.50
   Discontinued operations                                             4.51            7.45             6.32
- ------------------------------------------------------------------------------------------------------------
Basic net earnings per share                                      $   13.25       $   14.50        $   11.82
============================================================================================================
DILUTED EARNINGS PER SHARE OF COMMON STOCK:*
   Continuing operations                                          $    8.59       $    6.98        $    5.49
   Discontinued operations                                             4.43            7.37             6.32
- ------------------------------------------------------------------------------------------------------------
Diluted net earnings per share                                    $   13.02       $   14.35        $   11.81
============================================================================================================
</TABLE>

*Adjusted to reflect subsequent common stock dividends and the adoption of
Statement of Financial Accounting Standards No. 128 "Earnings Per Share."

See accompanying Notes to Consolidated Financial Statements.


                                       31
<PAGE>   23
CONSOLIDATED STATEMENTS OF CHANGES IN
COMMON STOCKHOLDERS' EQUITY
Alleghany Corporation and Subsidiaries

<TABLE>
<CAPTION>
Three Years Ended December 31, 1998
- ------------------------------------------------------------------------------------------------------------------------------------
                                                                        Accumulated      Cumulative      Cumulative           Total
                                               Common    Contributed  Comprehensive        Treasury        Retained   Stockholders'
(in thousands, except share amounts)            Stock        Capital   Other Income           Stock        Earnings          Equity
- ------------------------------------------------------------------------------------------------------------------------------------
<S>                                       <C>            <C>          <C>               <C>             <C>           <C>        
BALANCE AT DECEMBER 31, 1995              $     7,159    $   477,672    $   218,616     $   (10,174)    $   627,370     $ 1,320,643
(7,448,490 shares of common
   stock issued; 66,180 in treasury)*
ADD (DEDUCT):
Net earnings                                     --             --             --              --            87,048          87,048
Other comprehensive income, net of tax:
   Cumulative translation loss                   --             --           (1,357)           --              --            (1,357)
   Change in unrealized appreciation
      of investments, net                        --             --           28,003            --              --            28,003
- ------------------------------------------------------------------------------------------------------------------------------------
Comprehensive income                             --             --           26,646            --            87,048         113,694
- ------------------------------------------------------------------------------------------------------------------------------------
Common stock dividend                              75         15,756           --            11,792         (27,766)           (143)
Other, net                                         69          1,508           --           (12,511)           --           (10,934)
- ------------------------------------------------------------------------------------------------------------------------------------
BALANCE AT DECEMBER 31, 1996                    7,303        494,936        245,262         (10,893)        686,652       1,423,260
(7,449,126 shares of common
   stock issued; 62,794 in treasury)*
ADD (DEDUCT):
Net earnings                                     --             --             --              --           105,667         105,667
Other comprehensive income, net of tax:
   Cumulative translation loss                   --             --           (3,166)           --              --            (3,166)
   Change in unrealized appreciation
      of investments, net                        --             --           56,900            --              --            56,900
- ------------------------------------------------------------------------------------------------------------------------------------
Comprehensive income                             --             --           53,734            --           105,667         159,401
- ------------------------------------------------------------------------------------------------------------------------------------
Common stock dividend                            --            1,181           --            28,486         (29,815)           (148)
Other, net                                        110         15,032           --           (26,720)           --           (11,578)
- ------------------------------------------------------------------------------------------------------------------------------------
BALANCE AT DECEMBER 31, 1997                    7,413        511,149        298,996          (9,127)        762,504       1,570,935
(7,413,140 shares of common
   stock issued; 45,589 in treasury)
ADD (DEDUCT):
Net earnings                                     --             --             --              --            96,106          96,106
Other comprehensive income, net of tax:
   Cumulative translation gain                   --             --            1,022            --              --             1,022
   Change in unrealized appreciation
      of investments, net                        --             --           47,130            --              --            47,130
- ------------------------------------------------------------------------------------------------------------------------------------
Comprehensive income                             --             --           48,152            --            96,106         144,258
- ------------------------------------------------------------------------------------------------------------------------------------
Spin-off of Chicago Title                        --             --          (10,663)           --          (403,104)       (413,767)
Other, net                                         19            152           --           (53,437)           (732)        (53,998)
- ------------------------------------------------------------------------------------------------------------------------------------
BALANCE AT DECEMBER 31, 1998              $     7,432    $   511,301    $   336,485     $   (62,564)    $   454,774     $ 1,247,428
(7,432,023 shares of common
   stock issued; 200,799 in treasury)
====================================================================================================================================
</TABLE>

*Adjusted to reflect subsequent common stock dividends.
See accompanying Notes to Consolidated Financial Statements.


                                       32
<PAGE>   24
CONSOLIDATED STATEMENTS OF CASH FLOWS
Alleghany Corporation and Subsidiaries

<TABLE>
<CAPTION>
Years Ended December 31,
- --------------------------------------------------------------------------------------------------------------
(in thousands)                                                              1998          1997          1996
- --------------------------------------------------------------------------------------------------------------
<S>                                                                      <C>           <C>           <C>      
CASH FLOWS FROM CONTINUING OPERATING ACTIVITIES
Earnings from continuing operations                                      $  63,381     $  51,400     $  40,470
Adjustments to reconcile earnings from continuing operations
   to cash provided by (used in) continuing operations:
Depreciation and amortization                                               18,395        24,178        24,015
Net (gain) loss on investment transactions                                  (7,719)       10,347        (4,307)
Other charges to continuing operations, net                                 (4,800)         (300)         (683)
Decrease (increase) in funds held, accounts and other receivables          (77,417)      (31,088)       18,072
(Increase) decrease in reinsurance receivable                             (100,575)        4,601         7,573
Increase in property and casualty losses and loss adjustment expenses      192,337        49,050        96,020
(Decrease) in other assets                                                 (36,647)       (3,175)      (45,231)
Increase in other liabilities                                               95,411        63,395        30,849
(Increase) decrease  in cash pledged to secure trust deposits              (55,571)       17,338        (3,041)
Increase (decrease) in trust and escrow deposits                            52,414       (17,599)       26,493
- --------------------------------------------------------------------------------------------------------------
Net adjustments                                                             75,828       116,747       149,760
- --------------------------------------------------------------------------------------------------------------
Cash provided by (used in) continuing operations                           139,209       168,147       190,230
- --------------------------------------------------------------------------------------------------------------
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of investments                                                   (321,092)     (591,358)     (494,421)
Maturities of investments                                                   53,367       210,154        55,257
Sales of investments                                                       316,692       224,717       124,273
Purchases of property and equipment                                        (29,769)      (16,580)      (23,728)
Acquisition of Venton, net of cash received                               (172,963)         --            --
Other, net                                                                  (4,895)       20,960         8,807
- --------------------------------------------------------------------------------------------------------------
Net cash used in investing activities                                     (158,660)     (152,107)     (329,812)
- --------------------------------------------------------------------------------------------------------------
CASH FLOWS FROM FINANCING ACTIVITIES
Principal payments on long-term debt                                       (22,000)     (112,000)     (159,000)
Proceeds of long-term debt                                                  71,484        97,639       296,082
Cash provided by discontinued operations                                     3,903        18,805        30,000
Other, net                                                                 (54,267)      (11,594)      (19,161)
- --------------------------------------------------------------------------------------------------------------
   Net cash (used in) provided by financing activities                        (880)       (7,150)      147,921
- --------------------------------------------------------------------------------------------------------------
   Net (decrease) increase in cash                                         (20,331)        8,890         8,339
Cash at beginning of year                                                   45,772        36,882        28,543
- --------------------------------------------------------------------------------------------------------------
Cash at end of year                                                      $  25,441     $  45,772     $  36,882
- --------------------------------------------------------------------------------------------------------------
SUPPLEMENTAL DISCLOSURES OF CASH FLOW INFORMATION
Cash paid during the year for:
   Interest                                                              $  32,758     $  32,140     $  26,464
   Income taxes                                                          $  34,748     $  44,410     $  63,646
- --------------------------------------------------------------------------------------------------------------
Non-cash item:
   Book value of spin-off of Chicago Title and Trust Company             $ 413,767          --            --
==============================================================================================================
</TABLE>


See accompanying Notes to Consolidated Financial Statements.



                                       33
<PAGE>   25
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


1. SUMMARY OF SIGNIFICANT ACCOUNTING PRINCIPLES

a. PRINCIPLES OF FINANCIAL STATEMENT PRESENTATION.

Alleghany Corporation, a Delaware corporation ("Alleghany", or together with its
subsidiaries and division, the "Company"), owns Alleghany Asset Management,
Inc.; Alleghany Funding Corporation ("AFC"); World Minerals Inc. ("World
Minerals"); Underwriters Re Group, Inc., formerly known as URC Holdings Corp.
("Underwriters Re Group"), whose principal subsidiaries are Underwriters
Reinsurance Company ("Underwriters Reinsurance"), Commercial Underwriters
Insurance Company ("CUIC") and Underwriters Insurance Company ("UIC"); and
Alleghany Properties Inc. ("API"). Heads and Threads currently conducts its
business as a division of Alleghany.

      The Company in 1998 spun-off to Alleghany stockholders shares of a
newly-formed holding company for Chicago Title and Trust Company, and
accordingly its operations are shown as discontinued operations for all periods
presented. See Note 2.

      Underwriters Reinsurance acquired Venton Holdings Ltd. and subsidiaries
("VHL") on October 23, 1998. The consolidated financial statements of Alleghany
do not include the results of VHL for the period following its acquisition,
except that Alleghany's consolidated balance sheet as of December 31, 1998
includes VHL's accounts as of September 30, 1998, which date is being used as
the opening balance sheet date. VHL's accounts will be included in the
consolidated financial statements of Alleghany on a one quarter lag. VHL is
accounted for under the purchase accounting method.

      The accompanying consolidated financial statements have been prepared in
accordance with generally accepted accounting principles and include the
accounts of the Company. All significant intercompany items have been eliminated
in consolidation.

      The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions. These estimates and assumptions affect the reported amounts of
assets and liabilities and disclosure of contingent assets and liabilities at
the date of the financial statements, as well as the reported amounts of
revenues and expenses during the reporting period. Estimates and assumptions
associated with property and casualty loss reserves include inherent
uncertainties primarily due to the long- term nature of most reinsurance
business, the diversity of development patterns among different lines of
business and types of reinsurance, and the necessary reliance on the ceding
company for information regarding claims. Actual results could differ from those
estimates.

b. INVESTMENTS.

Marketable investment securities at December 31, 1998 and 1997 consist of U.S.
Treasury securities, obligations of U.S. government agencies, municipal
obligations, mortgage- backed securities, corporate debt securities,
certificates of deposit, and equity securities. The Company classifies its debt
and marketable equity securities into one of three categories: trading,
available for sale, or held to maturity. Trading securities are bought and held
principally for the purpose of selling them in the near term. Held to maturity
securities are those fixed maturity securities which the Company has the ability
and intent to hold until maturity. Securities held for indefinite periods of
time which may not be held to maturity are classified as available for sale.
Money market instruments are included in the bonds, notes and other category in
Note 3.

      At December 31, 1998 and 1997, securities are classified as available for
sale securities and recorded at fair value. Unrealized holding gains and losses,
net of the related tax effect, on available for sale securities are excluded
from earnings and are reported in comprehensive income and as a separate
component of stockholders' equity until realized. A decline in the fair value of
an available for sale security below its cost that is deemed other than
temporary is charged to earnings.

      Realized gains and losses on investments are determined on the specific
identification method.

c. PROPERTY AND EQUIPMENT.

Depreciation of buildings and equipment and amortization of leasehold
improvements are principally calculated using the straight-line method over the
estimated useful life of the respective assets or the life of the lease,
whichever is less.

d. PROPERTY AND CASUALTY LOSSES AND LOSS ADJUSTMENT EXPENSES.

The liability for outstanding losses and loss adjustment expenses includes
estimated provisions for all reported and unreported claims incurred and is
reduced by allowances for salvage and subrogation. In management's opinion,
reserves for property and casualty losses and loss adjustment expenses are
adequate.

e. REVENUE RECOGNITION.

Trust fees are recognized principally when billed.

      Property and casualty premiums are reflected in income generally on a
daily pro rata basis for facultative business and as reported by the ceding
company for treaty business.

f. DERIVATIVE FINANCIAL INSTRUMENTS.

The Company has only limited involvement with derivative financial instruments
and does not use them for trading

                                       34
<PAGE>   26
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES

purposes. The Company enters into interest rate swaps for purposes of converting
variable interest rate exposure to a fixed rate and to match interest expense
with interest income. Interest rate swaps are accounted for as a hedge of the
obligation. Interest expense is recorded using the revised interest rate.

g. INCOME TAXES.

The Company files a consolidated federal income tax return with
its domestic subsidiaries. Deferred tax assets and liabilities are recognized
for the future tax consequence attributable to differences between the financial
statement carrying amount of existing assets and liabilities and their
respective tax bases and operating loss and tax credit carryforwards. Deferred
tax assets and liabilities are measured using enacted tax rates expected to
apply to taxable income in the years in which those temporary differences are
expected to be recovered or settled. The effect on deferred tax assets and
liabilities of a change in tax rates is recognized in income in the period that
includes the enactment date.

h. FUNDS HELD, ACCOUNTS AND OTHER RECEIVABLES.

Funds held, accounts, and other receivables consists of funds held under
reinsurance contracts and accounts and other receivables, net of allowances.

i. ACQUISITION COSTS.

Acquisition costs related to unearned property and casualty premiums are
deferred by major underwriting lines and amortized over the period in which the
premiums are earned. The method followed in computing the deferred acquisition
costs consists of deferring only those variable acquisition costs, such as
commissions and brokerage fees, which relate directly to the production of
business, and limiting the amount of those costs deferred to their net
realizable value after allowing for anticipated investment income.

j. REINSURANCE.

Reinsurance receivables (including amounts related to claims incurred but not
reported) and prepaid reinsurance premiums are reported as assets. Reinsurance
contracts that do not result in a reasonable possibility that the reinsurer may
realize a significant loss from the insurance risk assumed and that do not
provide for the transfer of significant insurance risk generally do not meet the
conditions for reinsurance accounting and are accounted for as deposits.

k. CASH.

For purposes of the consolidated statements of cash flows, cash includes
only funds on deposit which are available for immediate withdrawal.

l. NET EARNINGS PER SHARE OF COMMON STOCK.

In June 1997, the Financial Accounting Standards Board (FASB) issued Statement
of Financial Accounting Standards No. 128 (SFAS 128) "Earnings per Share" which
the Company implemented in 1997. SFAS 128 supersedes Opinion 15 and related
accounting interpretations. SFAS 128 replaces the presentation of primary and
fully diluted earnings per share with "basic earnings per share" and "diluted
earnings per share," respectively. All prior periods presented have been
restated to reflect the new requirement.

      Earnings per share of common stock are based on the average number of
shares of Alleghany common stock outstanding during the years ended December 31,
1998, 1997, and 1996, respectively, as adjusted for stock dividends. The average
number of shares of common stock outstanding, as adjusted for stock dividends,
was 7,251,238 in 1998, 7,287,459 in 1997, and 7,360,584 in 1996.

m. IMPAIRMENT OF LONG-LIVED ASSETS.

The Company follows Statement of Financial Accounting Standards No. 121 (SFAS
121) "Accounting for the Impairment of Long-Lived Assets and for Long- Lived
Assets to Be Disposed Of." As guidance for recognition and measurement of
impairment of long-lived assets, certain identifiable intangibles and goodwill
related both to assets to be held and used and assets to be disposed of.

n. STOCK OPTION PLANS.

The Company follows Statement of Financial Accounting Standards No. 123 (SFAS
123) "Accounting for Stock-Based Compensation." SFAS 123 establishes accounting
and reporting standards for stock-based employee compensation plans. This
statement allows companies to choose between the "fair value based method of
accounting" as defined in this statement and the "intrinsic value based method
of accounting" as prescribed by Accounting Principles Board Opinion No. 25 (APB
25), "Accounting for Stock Issued to Employees." The Company has elected to
continue to follow the accounting guidance provided by APB 25, as permitted.

o. RECENT ACCOUNTING PRONOUNCEMENTS.

In June 1997, the FASB issued Statement of Financial Accounting Standards No.
130 (SFAS 130) "Reporting Comprehensive Income." SFAS 130 establishes standards
for the reporting and display of comprehensive income and its components in a
full set of general-purpose financial statements. All items that are required to
be recognized under accounting standards as components of comprehensive income
are to be reported in a financial statement that is displayed with the


                                       35
<PAGE>   27
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


same prominence as other financial statements. The Company implemented this
statement in 1998. This statement relates to presentation of information and had
no impact on the consolidated statement of earnings or consolidated balance
sheets.

      In June 1997, the FASB issued Statement of Financial Accounting Standards
No. 131 (SFAS 131) "Disclosures about Segments of an Enterprise and Related
Information." SFAS 131 establishes standards for the way that public enterprises
report information about operating segments in annual financial statements and
requires that selected information about those operating segments be reported in
interim financial statements. The Company implemented this statement in 1998.
The Company's reportable operating segments did not change as a result of the
adoption of SFAS 131.

      In June 1998, the Financial Accounting Standards Board issued Statement
133 (SFAS 133), "Accounting for Derivative Instruments and Hedging Activities".
SFAS 133 establishes accounting and reporting standards for derivative
instruments and hedging activities. The statement requires all derivatives to be
recorded on the balance sheet at fair value and establishes special accounting
for the following three different types of hedges: (1) hedges of changes in the
fair value of assets, liabilities or firm commitments (referred to as fair value
hedges); (2) hedges of the variable cash flows of forecasted transactions (cash
flow hedges); and (3) hedges of foreign currency exposures of net investments in
foreign operations. Though the accounting treatment and criteria for each of the
three types of hedges is unique, they all result in recognizing offsetting
changes in value or cash flow of both the hedge and the hedged item in earnings
in the same period. Changes in the fair value of derivatives that do not meet
the criteria of one of these three categories of hedges are included in earnings
in the period of the change with no related offset. SFAS 133 is effective for
years beginning after June 15, 1999, but companies may adopt it early. The
Company expects to adopt SFAS 133 effective January 1, 2000. Management is
assessing the impact of SFAS 133 on the Company and does not anticipate the
impact to be significant.

p. RECLASSIFICATION.

Certain prior year amounts have
been reclassified to conform to the 1998 presentation.

2. SPIN-OFF OF CHICAGO TITLE

As a result of the spin-off, the Company has classified the operation
spun-off as a "discontinued operation" in its financial statements. Historical
financial information relating to the discontinued operations is as follows (in
thousands):

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------
ASSETS                                                             1997
- -----------------------------------------------------------------------------
<S>                                                             <C>
Investments:
         Fixed                                                  $1,032,089
         Equities                                                   34,490
- -----------------------------------------------------------------------------
                                                                 1,066,579
- -----------------------------------------------------------------------------
Cash                                                                21,219
Cash pledged                                                       100,207
Funds held, accounts receivable                                     69,519
Title records                                                      150,546
Property and equipment, net                                         97,223
Net deferred tax asset                                              75,197
Other assets                                                       102,821
- -----------------------------------------------------------------------------
                                                                $1,683,311
=============================================================================

LIABILITIES AND EQUITY
- -----------------------------------------------------------------------------
Title losses and claims                                         $  564,453
Other liabilities                                                  233,411
Long-term debt                                                      32,443
Trust and escrow deposits                                          467,553
- -----------------------------------------------------------------------------
                                                                 1,297,860
- -----------------------------------------------------------------------------
Stockholder's equity                                               385,451
- -----------------------------------------------------------------------------
                                                                $1,683,311
=============================================================================
</TABLE>

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------
REVENUES                                    1998*           1997           1996
- -----------------------------------------------------------------------------------
<S>                                     <C>             <C>            <C>
Title premiums,
      escrow and trust fees             $  777,882      $1,395,865     $1,265,461
Interest, dividend and
      other income                          28,025          67,897         60,787
Net gain on investment transactions            487           1,469          1,436
- -----------------------------------------------------------------------------------
      Total revenues                       806,394       1,465,231      1,327,684
- -----------------------------------------------------------------------------------
COSTS AND EXPENSES
- -----------------------------------------------------------------------------------
Commissions and
      brokerage expenses                   260,797         526,324        484,352
Salaries, administrative and
      other operating expenses             440,260         749,624        684,548
Provision for title losses
and other claims                            51,910         103,251         83,526
Interest expense                             2,259           4,644          5,566
- -----------------------------------------------------------------------------------
      Total costs and expenses             755,226       1,383,843      1,257,992
- -----------------------------------------------------------------------------------
      Earnings before income taxes          51,168          81,388         69,692
Income taxes                                18,443          27,121         23,114
- -----------------------------------------------------------------------------------
      NET EARNINGS                      $   32,725      $   54,267     $   46,578
===================================================================================
</TABLE>

*     For the period 1/1/98 thru 6/17/98.

The financial information excludes the effects of certain inter-company
securities transactions that Chicago Title and the Company entered into. In
addition, the operations of Alleghany Asset Management are shown as a
discontinued operation in Chicago Title's stand alone financial statements.
Alleghany Asset Management is included in the continuing operations of the
Company. Accordingly, the financial information shown above will not agree to
Chicago Title's financial statements prepared on a stand alone basis.


                                       36
<PAGE>   28
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


3. INVESTMENTS

Available for sale securities at December 31, 1998 and 1997 are summarized as
follows (in thousands):

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
1998
- -------------------------------------------------------------------------------------------------
                                Amortized                                Gross              Gross
                                     Cost       Unrealized          Unrealized               Fair
CONSOLIDATED                      or Cost            Gains              Losses              Value
- -------------------------------------------------------------------------------------------------
<S>                            <C>               <C>               <C>                 <C>
Fixed maturities:
   U.S. Government,
   government agency
   and municipal
   obligations                 $  699,409        $  22,100         $      (325)        $  721,184
Certificates of deposit             1,333               --                  --              1,333
Commercial paper                   49,462               --                  --             49,462
Bonds, notes and other            520,075           11,301              (1,648)           529,728
- -------------------------------------------------------------------------------------------------
                                1,270,279           33,401              (1,973)         1,301,707
Equity securities                 317,216          507,110                --              824,326
- -------------------------------------------------------------------------------------------------
                               $1,587,495        $ 540,511         $    (1,973)        $2,126,033
=================================================================================================

INDUSTRY SEGMENT
- -------------------------------------------------------------------------------------------------
Asset management               $   40,591        $     441         $        --         $   41,032
Property and casualty
   insurance                    1,317,398          213,321              (1,973)         1,528,746
Mining and filtration                 416               --                  --                416
Corporate activities              229,090          326,749                  --            555,839
- -------------------------------------------------------------------------------------------------
                               $1,587,495        $ 540,511         $    (1,973)        $2,126,033
=================================================================================================
</TABLE>


<TABLE>
<CAPTION>
1997
- ---------------------------------------------------------------------------------------------------
                                  Amortized                                Gross              Gross
                                       Cost       Unrealized          Unrealized               Fair
CONSOLIDATED                        or Cost            Gains              Losses              Value
- ---------------------------------------------------------------------------------------------------
<S>                            <C>               <C>               <C>                 <C>
FIXED MATURITIES:
  U.S. Government,
    government agency
    and municipal
    obligations                  $  687,377        $  16,638         $    (1,169)        $  702,846
  Certificates of deposit             2,500               --                  --              2,500
  Commercial paper                   46,507               --                  --             46,507
  Bonds, notes and other            518,697            8,393              (1,377)           525,713
- ---------------------------------------------------------------------------------------------------
                                  1,255,081           25,081              (2,546)         1,277,566
EQUITY SECURITIES                   339,888          443,545                --              783,433
- ---------------------------------------------------------------------------------------------------
                                 $1,594,969        $ 468,576         $    (2,546)        $2,060,999
===================================================================================================

INDUSTRY SEGMENT
- ---------------------------------------------------------------------------------------------------
Asset management                 $   18,205        $     150         $       (25)        $   18,330
Property and casualty
         insurance                1,328,273          186,426              (2,521)         1,512,178
Mining and filtration                 1,022             --                  --                1,022
Corporate activities                247,469          282,000                --              529,469
- ---------------------------------------------------------------------------------------------------
                                 $1,594,969        $ 468,576         $    (2,546)        $2,060,999
===================================================================================================
</TABLE>

The amortized cost and estimated fair value of fixed maturities at December 31,
1998, by contractual maturity, are shown below (in thousands). Expected
maturities will differ from contractual maturities because borrowers may have
the right to call or prepay obligations with or without call or prepayment
penalties.

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------
                                                 Amortized              Fair
                                                      Cost             Value
- ------------------------------------------------------------------------------
<S>                                             <C>               <C>
Fixed maturities:
  Due in one year or less                       $  215,118        $  215,473
  Due after one year through five years            337,676           344,615
  Due after five years through ten years           320,335           331,017
  Due after ten years                              120,931           125,528
  Mortgage-backed securities                       276,219           285,074
- ------------------------------------------------------------------------------
                                                $1,270,279        $1,301,707
==============================================================================

</TABLE>

      The net unrealized appreciation for 1997 as reported in the Consolidated
Statement of Changes in Common Stockholders' Equity does not agree to the
amounts shown above due to the exclusion of Chicago Title's discontinued
operations and the income tax effect.

      The proceeds from sales of available for sale securities were $317
million, $225 million, and $124 million, which included the proceeds from sales
of fixed maturities of $145 million, $137 million, and $111 million, in 1998,
1997, and 1996, respectively.

      Gross realized gains and gross realized losses of available for sale
securities were $8.9 million and $1.2 million, $2.4 million and $1.6 million,
$4.5 million and $.2 million, respectively, in 1998, 1997, and 1996. These
amounts include gross realized gains and gross realized losses on sales of fixed
maturities of $1.7 million and $.9 million, $.5 million and $1.3 million, and
$.1 million and $.2 million, respectively, in 1998, 1997, and 1996.

      During 1997, Alleghany had fixed maturity and equity investments that were
trading below cost. The Company determined that these declines were other than
temporary and, accordingly, recorded a loss provision of approximately $11.2
million, for these investments.

      At December 31, 1998 and 1997, investments, carried at fair value,
totalling approximately $142 million and $35 million, respectively, were on
deposit with various states or governmental departments to comply with property
and casualty insurance laws.


                                       37
<PAGE>   29
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


      Assets pledged to secure trust deposits at December 31, 1998 and 1997,
carried at fair value, were as follows (in thousands):

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------
                                                  1998          1997
- ------------------------------------------------------------------------
<S>                                              <C>            <C>
Cash                                             $56,907        $1,336
U.S. Government and municipal obligations          1,751         4,794
Certificates of deposit                               --         2,000
Money Market Fund                                  2,036            --
- ------------------------------------------------------------------------
                                                 $60,694        $8,130
========================================================================
</TABLE>

4. REINSURANCE

In the ordinary course of business, Underwriters Reinsurance cedes reinsurance
for purposes of risk diversification and limiting maximum loss exposure to
catastrophic events. If such assuming reinsurers are unable to meet the
obligations assumed under these agreements, Underwriters Reinsurance would
remain liable. Reinsurance receivable at December 31, 1998 and 1997 consists of
the following (in thousands):

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------
                                                1998            1997
- -------------------------------------------------------------------------
<S>                                           <C>             <C>
Reinsurance recoverable on paid losses        $ 17,273        $ 12,808
Ceded outstanding losses
  and loss adjustment expenses                $554,416        $374,801
- -------------------------------------------------------------------------
</TABLE>

      The reinsurance receivable balance as of December 31, 1998 and 1997
includes $65.7 million and $87.8 million, respectively, from Continental
Reinsurance under reinsurance contracts entered into prior to 1993.

      For the years ended December 31, 1998, 1997, and 1996, Underwriters
Reinsurance ceded losses and loss adjustment expenses of $158.9 million,
$58.1million, and $86.5 million, respectively.

      The following table indicates property and casualty premiums written and
earned for the years ended December 31, 1998, 1997, and 1996 (in thousands):

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------
1998                               Written                    Earned
- ----------------------------------------------------------------------
<S>                               <C>                       <C>
Premiums direct                   $149,930                  $144,812
Premiums assumed                  $399,038                  $386,374
Premiums ceded                    $110,806                  $110,377
======================================================================
1997
- ----------------------------------------------------------------------
Premiums direct                   $139,761                  $112,158
Premiums assumed                  $366,143                  $352,930
Premiums ceded                    $ 91,713                  $ 88,416
======================================================================
1996
- ----------------------------------------------------------------------
Premiums direct                   $105,053                  $ 85,437
Premiums assumed                  $328,604                  $327,308
Premiums ceded                    $ 73,352                  $ 65,968
======================================================================
</TABLE>

      As of December 31, 1998 and 1997, loss reserves ceded are secured by
deposits in a trust fund totalling $123.3 million and $.1 million, respectively,
and letters of credit totalling $102 million and $290.3 million, respectively.

5. LIABILITY FOR UNPAID CLAIMS AND CLAIM ADJUSTMENT EXPENSES

Activity in the liability for unpaid claims and claim adjustment expenses is
summarized as follows (in thousands):

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------
                                                 1998                1997               1996
- -------------------------------------------------------------------------------------------------
PROPERTY AND CASUALTY LOSSES
   AND LOSS ADJUSTMENT EXPENSES
- -------------------------------------------------------------------------------------------------
<S>                                          <C>                 <C>                 <C>
Balance at January 1                         $ 1,159,070         $ 1,110,020         $1,014,000
Less reinsurance recoverables                    374,801             377,564            385,580
- -------------------------------------------------------------------------------------------------
Net balance at January 1                         784,269             732,456            628,420
Incurred related to:
Current year                                     290,513             267,530            242,332
Prior years                                       (2,254)             (5,702)             1,393
- -------------------------------------------------------------------------------------------------
Total incurred                                   288,259             261,828            243,725
- -------------------------------------------------------------------------------------------------
Paid related to:
Current year                                      57,788              35,033             23,341
Prior years                                      134,243             174,982            116,348
- -------------------------------------------------------------------------------------------------
Total paid                                       192,031             210,015            139,689
- -------------------------------------------------------------------------------------------------
VHL's unpaid claim and
  claim adjustment expenses                      119,905                  --                 --
- -------------------------------------------------------------------------------------------------
Net balance at December 31                     1,000,402             784,269            732,456
Plus reinsurance recoverables                    554,416             374,801            377,564
- -------------------------------------------------------------------------------------------------
Balance at December 31                       $ 1,554,818         $ 1,159,070         $1,110,020
=================================================================================================
</TABLE>

      Underwriters Reinsurance's reserve for unpaid losses and loss adjustment
expenses includes $66.9 million, $64.5 million, and $87.6 million gross reserves
and $47.0 million, $45.1 million, and $67.5 million net reserves at December 31,
1998, 1997, and 1996, respectively, for various liability coverages related to
asbestos and environmental impairment claims that arose from general liability
and certain commercial multiple-peril coverages. Restrictive asbestos and
environmental impairment exclusions were introduced in late 1986 on both
insurance and reinsurance contracts, significantly reducing these exposures for
accidents occurring after 1986. Reserves for asbestos and environmental
impairment claims cannot be estimated with traditional loss reserving techniques
because of uncertainties that are greater than those associated with other types
of claims. Factors contributing to those uncertainties include a lack of
historical data, the significant periods of time that often elapse between the
occurrence of an insured loss and the reporting of that loss to the ceding
company and the reinsurer, uncertainty as to the number and identity of insureds
with potential exposure to such risks, unresolved legal issues regarding policy
coverage, and the extent and timing of any


                                       38
<PAGE>   30
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


such contractual liability. Such uncertainties are not likely to be resolved in
the near future and, therefore, management believes it is not possible at this
time to determine the ultimate losses in this area or develop a meaningful range
of such losses.

     For both asbestos and environmental excess of loss reinsurance claims,
Underwriters Reinsurance establishes case reserves by applying reinsurance
contract terms to losses reported by ceding companies, analyzing from the first
dollar of loss incurred by the primary insurer. In establishing the liability
for claims for asbestos related liability and for environmental impairment
claims, management considers facts currently known and the current state of the
law and coverage litigation. Additionally, ceding companies often report
potential losses on a precautionary basis to protect their rights under the
reinsurance arrangement, which generally calls for prompt notice to the
reinsurer. Ceding companies, at the time they report such potential losses,
advise Underwriters Reinsurance of the ceding companies' current estimate of the
extent of such loss. Underwriters Reinsurance's claims department reviews each
of the precautionary claims notices and, based upon current information,
assesses the likelihood of loss to Underwriters Reinsurance. Such assessment is
one of the factors used in determining the adequacy of the recorded asbestos and
environmental reserves.

6. LONG-TERM DEBT

Long-term debt at December 31, 1998 and 1997 is summarized as follows (in
thousands):

<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------
                                                        1998            1997
- --------------------------------------------------------------------------------
<S>                                                   <C>             <C>
ALLEGHANY
Revolving credit                                      $ 18,200        $ 16,000
API
Senior notes at 8.6%, due through 2000                  20,000          30,000
Senior notes at 6.83%, due through 2004                 40,000              --
AFC
Notes payable at 6.2% to 6.7% due 2007                  80,000          80,000
Underwriters Re Group
Senior notes at 7.9%, due 2006                         197,658         197,384
WORLD MINERALS
Notes payable at 6.0% to 7.0%,
  due through 1999                                      71,000          64,000
Other loans at 7.4% to 11.2%, due 1998                   2,652           2,257
HEADS AND THREADS
Notes payable at 6.1% to 6.4% due through 1999           2,450              --
Secured credit lines at 5.58% to 7.48%                   7,690              --
Capital lease obligations                                  145              --
- --------------------------------------------------------------------------------
                                                      $439,795        $389,641
================================================================================
</TABLE>

     Under the terms of a revolving credit loan agreement dated June 14, 1995,
as amended April 8, 1998, with a bank, Alleghany may borrow up to $200 million
until July 2000. At Alleghany's option, borrowings bear interest at a rate based
on the purchase of negotiable certificates of deposit, prevailing rates for
dollar deposits in the London interbank market or the greatest of the Federal
funds rate, the bank's prime rate or a specified certificate of deposit rate.
$18.2 million and $16 million were outstanding under this agreement at December
31, 1998 and 1997, respectively. A commitment fee of 1/4 of 1% per annum of the
unused commitment is charged. The revolving credit agreement, among other
things, requires Alleghany to maintain tangible net worth not less than $750
million, limits the amount of certain other indebtedness and contains
restrictions with respect to mortgaging or pledging any of Alleghany's assets
and consolidation or merger with any other corporation.

      In February 1995, API issued $50 million of senior notes. Proceeds were
used to repay short-term borrowings and to make a dividend to Alleghany. The
senior notes are being repaid in five equal annual installments which began in
1996. In December 1998, API issued $40 million of additional senior notes.
Proceeds were used to make a dividend to Alleghany and to pay for the issuance
expenses. The notes are being repaid in five equal annual installments beginning
in 2000.

      AFC notes are primarily secured by a $91.5 million installment note
receivable. AFC has entered into a related interest rate swap agreement with a
notional amount of $86 million for the purpose of matching interest expense with
interest income. This swap is pay variable, receive variable. Alleghany pays a
variable rate equal to the one month commercial paper rate plus 0.0625% and
receives a variable rate equal to the three month LIBOR rate plus 0.375%. The
swap matures on January 22, 2007. AFC is exposed to credit risk in the unlikely
event of nonperformance by the swap counter party.

      On June 25, 1996, Underwriters Re Group issued, without recourse to
Alleghany, $200 million principal amount of 7.875% Senior Notes due 2006. Of the
net proceeds of the offering, $120 million was contributed to the capital of
Underwriters Reinsurance, $50 million was used to repay indebtedness under
Underwriters Re Group's credit agreement and the remainder is being used for
general corporate purposes. On December 20, 1991, World Minerals entered into a
bank loan agreement, providing for borrowings of up to $70 million, pursuant to
which it borrowed $50 million, without recourse to Alleghany. On March 10, 1995,
the bank loan agreement was renegotiated to provide borrowing up to $117
million. During 1995, World Minerals borrowed an additional $31 million to fund
a number of small acquisitions and joint ventures. World Minerals is currently
renegotiating its long term credit facility. In January 1992, World Minerals
entered into two interest rate swap agreements each with a notional


                                       39
<PAGE>   31
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


amount of $30 million. One swap matured on January 15, 1997 and was not renewed.
The other swap matures on January 15, 1999 and was not renewed. These swaps were
entered into for the purpose of converting variable interest rate exposure to a
fixed rate. One such swap was entered into as a condition of a related variable
rate loan agreement which required that hedging or interest rate protection
agreements be maintained with respect to not less than 50% of the variable rate
borrowing commitment. World Minerals is exposed to credit risk in the unlikely
event of nonperformance by the swap counter party.

      Regarding the Company's interest rate swaps, there were no deferred gains
or losses related to terminated interest rate swap contracts as of the end of
each of the last three fiscal years. The impact of Alleghany's hedging
activities has been to increase its weighted average borrowing rates by 0.07%,
0.31%, and 0.55% and to increase reported interest expense by $0.3 million, $1.2
million, and $1.9 million for the years ended 1998, 1997, and 1996,
respectively.

      In June and August 1996, World Minerals repurchased from the minority
interest shareholders in its subsidiary, Harborlite, all of the redeemable
preferred stock for a total of $7.8 million.

      Scheduled aggregate annual maturities of long-term debt for each of the
next five years and thereafter are as follows (in thousands):

<TABLE>
- ------------------------------------------------------------
<S>                                               <C>
1999                                              $ 112,029
2000                                                 18,039
2001                                                  8,042
2002                                                  8,027
2003                                                  8,000
Thereafter                                          285,658
- ------------------------------------------------------------
                                                  $ 439,795
============================================================
</TABLE>

7. INCOME TAXES

Income tax expense (benefit) from continuing operations consists of the
following (in thousands):

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------
                 Federal          State           Foreign           Total
- ----------------------------------------------------------------------------
<S>             <C>              <C>             <C>              <C>
1998
- ----------------------------------------------------------------------------
Current         $ 22,933         $ 4,979         $  8,123         $ 36,035
Deferred          (7,628)            (19)            (753)          (8,400)
- ----------------------------------------------------------------------------
                $ 15,305         $ 4,960         $  7,370         $ 27,635
============================================================================
1997
- ----------------------------------------------------------------------------
Current         $  7,345         $ 4,184         $  6,736         $ 18,265
Deferred          (4,758)             11              312           (4,435)
- ----------------------------------------------------------------------------
                $  2,587         $ 4,195         $  7,048         $ 13,830
============================================================================
1996
- ----------------------------------------------------------------------------
Current         $  8,823         $ 2,481         $  6,415         $ 17,719
Deferred            (440)           (286)             (73)            (799)
- ----------------------------------------------------------------------------
                $  8,383         $ 2,195         $  6,342         $ 16,920
============================================================================
</TABLE>

      Earnings from continuing operations, before income taxes includes $16.5
million, $15.4 million, and $15.7 million from foreign operations in 1998, 1997,
and 1996, respectively.

      The difference between the federal income tax rate and the effective
income tax rate on continuing operations is as follows:

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------
                                                 1998            1997            1996
- ---------------------------------------------------------------------------------------
<S>                                              <C>             <C>             <C>
Federal income tax rate                          35.0%           35.0%           35.0%
Goodwill amortization                             1.4             2.3             2.4
Income subject to
dividends-received deduction                     (3.1)           (4.3)           (4.3)
State taxes, net of federal tax benefit           2.2             2.7             3.6
Tax-exempt interest income (6.2)                 (7.6)           (7.6)           (7.0)
Other, net                                        1.2            (6.9)           (0.2)
- ---------------------------------------------------------------------------------------
                                                 30.5%           21.2%           29.5%
=======================================================================================
</TABLE>

      The tax effects of temporary differences that give rise to significant
portions of the deferred tax assets and deferred tax liabilities at December 31,
1998 and 1997 are as follows (in thousands):

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------
                                                1998              1997
- -------------------------------------------------------------------------
<S>                                          <C>               <C>
DEFERRED TAX ASSETS
  Property and casualty loss reserves        $  61,137         $  55,610
  Reserves for impaired assets                  11,333            21,253
  Expenses deducted for
  tax purposes when paid                        27,892            21,964
  Unearned premium reserves                      8,769             7,556
  Other                                          9,031             9,668
- -------------------------------------------------------------------------
                                               118,162           116,051
- -------------------------------------------------------------------------
  Valuation allowance                            2,909             4,398
- -------------------------------------------------------------------------
  Total deferred tax assets                  $ 115,253         $ 111,653
- -------------------------------------------------------------------------
DEFERRED TAX LIABILITIES
  Deferred revenues and gains                $(211,733)        $(196,810)
  Tax over book depreciation                   (26,522)          (31,382)
  Other                                        (27,216)          (16,702)
- -------------------------------------------------------------------------
  Total deferred tax liabilities              (265,471)         (244,894)
- -------------------------------------------------------------------------
  Net deferred tax liability                 $(150,218)        $(133,241)
=========================================================================
</TABLE>

      A valuation allowance is provided when it is more likely than not that
some portion of the deferred tax assets will not be realized. At December 31,
1998 and 1997, the Company has established a valuation allowance of $2.9 million
and $4.4 million, respectively, for certain deferred state tax assets which it
believes may not be realized.

      The Internal Revenue Service has closed its examination of Alleghany's
federal income tax returns for 1991 and 1992. The deficiencies were settled for
an amount which was not material. The IRS is currently examining the tax returns
for the years 1993 through 1995.


                                       40
<PAGE>   32
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


8. STOCKHOLDERS' EQUITY

The total number of shares of all classes of capital stock
which Alleghany has authority to issue is 30,000,000, of which 8,000,000 shares
are preferred stock, par value of $1.00, and 22,000,000 shares are common stock,
par value of $1.00.

      Stockholder's equity and surplus of Underwriters Re Group is not
restricted as relates to payment of dividends. However, Underwriters Re Group's
availability of funds for dividends is restricted by limitations imposed by
statutes to which its subsidiaries are subject. Underwriters Reinsurance
statutory surplus at December 31, 1998 and 1997 was $602.6 million and $659
million, respectively, and statutory net income for the years ended December 31,
1998 and 1997 was $41 million and $36 million, respectively.

      Stockholders' equity of World Minerals is restricted by a borrowing
agreement as to payment of dividends. At December 31, 1998, substantially all of
World Minerals stockholders' equity was restricted as to dividend payment to
Alleghany.

      Additionally, payments of dividends (other than stock dividends) by
Alleghany to its stockholders are limited by the terms of its revolving credit
loan agreement which provides that Alleghany can pay dividends up to the sum of
cumulative net earnings after 1994, less $158.5 million (Chicago Title's net
earnings for the four year period), proceeds from the issuance of stock after
1994 and $50 million, provided that Alleghany maintains certain financial ratios
as defined in the agreement. At December 31, 1998 approximately $285 million of
capital was available for dividends.

      Alleghany provides, through its 1993 Long-Term Incentive Plan, for
incentive compensation of the types commonly known as restricted stock, stock
options, stock appreciation rights, performance shares, performance units, and
phantom stock, as well as other types of incentive compensation. Awards may
include, but are not limited to, cash and/or shares of Alleghany's common stock,
rights to receive cash and/or shares of common stock and options to purchase
shares of common stock including options intended to qualify as incentive stock
options under the Internal Revenue Code and options not intended to qualify. The
number of performance shares awarded under the incentive plan to employees of
the Company were 19,395 in 1998, 13,603 in 1997, and 38,570 in 1996 (as adjusted
for stock dividends).

      Under the incentive plan, participants are entitled, at the end of a
four-year award period, to the fair value of the number of shares of Alleghany's
common stock (adjusted for anti-dilution and the effect of the Chicago Title
spin-off from date of award), equal to the number of performance shares issued
to them based on market value on the payment date and normally payable half in
cash and half in stock, provided defined levels of performance are achieved. As
of December 31, 1998 (for all award periods through the award period 1998),
approximately 153,000 performance shares were outstanding. The amounts charged
to the Company's earnings with respect to the plan was $16.4 million in 1998,
$10.9 million in 1997, and $6.9 million in 1996.

      Alleghany also provides, through its Directors' Stock Option Plan, for the
automatic grant of non-qualified stock options to purchase 1,000 shares of
common stock in each year after 1987 to each non-employee director. Options
issued and subsequently adjusted for the Chicago Title spin-off to purchase
11,484 shares at the adjusted fair market value of $208.96 were granted in 1998.
At December 31, 1998, 68,000 options were outstanding, of which 35,000 options
were fully vested at an average option price of $76.

      In August 1997 options outstanding under the 1993 Stock Option Plan of the
Underwriters Re Group, Inc. were converted into Alleghany options. The stock
options are not exerciseable until one year from the date of grant when 25% are
exercisable with an additional 25% becoming exercisable on each subsequent
anniversary of the grant date. Options to purchase 97,500 shares at the then
fair market value of $192.25 were granted in 1998. In connection with the
Underwriters Re Group acquisition of VHL, 42,000 stock options under the URC
plan were issued. At December 31, 1998, 397,000 were outstanding, of which
221,000 were fully vested at an average option price of $75.

      The Board of Directors has authorized the purchase from time to time of
additional shares of common stock for the treasury. During 1998, 1997, and 1996,
Alleghany repurchased 222,564 shares, 157,174 shares, and 92,700 shares of its
common stock at a cost of $72.0 million, $33.1 million, and $17.9 million,
respectively.

9. FIXED STOCK OPTION PLAN

The Company has two fixed option plans as described in Note 8. All options
outstanding as of the Chicago Title spin-off date were subsequently adjusted for
the effect of this transaction.

      The fair value of each option grant, including the converted Underwriters
Re Group options, is estimated on the date of grant using the Black-Scholes
option pricing model with the following weighted-average assumptions used for
grants in 1998, 1997, and 1996, respectively; no cash dividend yield for all
years; expected volatility ranged from 15 to 16 percent for all years; risk-free
interest rates ranged from 3.7 to 4.8 percent; and expected lives of six and
seven years.


                                       41
<PAGE>   33
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


      A summary of the status of the Company's fixed option plan as of December
31, 1998, 1997, and 1996 and changes during the years ending on those dates is
presented below:

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------------------
                                                 1998                     1997                     1996
                                             Weighted                 Weighted                 Weighted
                                              Average                  Average                  Average
                                 Shares         Grant     Shares         Grant     Shares         Grant
                                   (000)        Price       (000)        Price       (000)        Price
- -------------------------------------------------------------------------------------------------------
<S>                              <C>         <C>          <C>         <C>          <C>         <C>
Fixed Options
- -------------------------------------------------------------------------------------------------------
Outstanding, beginning               390       $   82         405       $   78         373       $   73
Granted                              120          184          52          101          38          120
Exercised                            (41)          70         (62)          70          (6)          47
Forfeited                             (4)         119          (5)         103          --           --
- -------------------------------------------------------------------------------------------------------
Outstanding, ending                  465       $  109         390       $   82         405       $   78
=======================================================================================================
Options exercisable
  at year-end                        286                      295                      266
Weighted-average
  fair value of
  options granted
  during the year                              $53.99                   $28.79                   $36.29
=======================================================================================================
</TABLE>

<TABLE>
<CAPTION>
                                                        Options Outstanding
- ----------------------------------------------------------------------------
                                                Weighted
                                                 Average
                                Number         Remaining           Weighted
                           Outstanding       Contractual            Average
                           at 12/31/98      Life (years)     Exercise Price
- ----------------------------------------------------------------------------
RANGE OF EXERCISE PRICES
- ----------------------------------------------------------------------------
<S>                        <C>              <C>              <C>
$ 45 to 52                       7,000          1.6                  $   48
$ 68 to 91                     298,000          5.0                      76
$116 to 209                    160,000          9.0                     172
- ----------------------------------------------------------------------------
$45 to 209                     465,000          6.4                  $  109
===========================================================================
</TABLE>

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------
                                                         Options Exercisable
- ----------------------------------------------------------------------------
                                Number                              Weighted
                           Exercisable                               Average
                           at 12/31/98                        Exercise Price
- ----------------------------------------------------------------------------
RANGE OF EXERCISE PRICES
- ----------------------------------------------------------------------------
<S>                        <C>                           <C>
$ 45 to 52                       7,000                                 $  48
$ 68 to 91                     256,000                                    76
$116 to 209                     23,000                                   124
- ----------------------------------------------------------------------------
$116 to 209                    286,000                                 $  79
============================================================================
</TABLE>

      The Company applies APB 25 and related interpretations in accounting for
its plans. Accordingly, no compensation cost has been recognized for its fixed
stock option plan. The compensation cost that has been charged against income
for its performance-based plan was $16.4, $10.9, and $6.9 million in 1998, 1997,
and 1996, respectively. Had compensation cost for the company's two stock-based
compensation plans been determined based on the fair value at the grant date for
awards under those plans consistent with the method of SFAS 123, the Company's
net earnings and earnings per share would have been increased to the pro forma
amounts indicated below:

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------
                                         1998          1997         1996
- ------------------------------------------------------------------------
<S>               <C>               <C>          <C>            <C>
Net earnings      As reported       $  96,106    $  105,667     $ 87,048
                  Pro forma         $ 100,910    $  107,138     $ 87,721
Basic earnings
  per share       As reported       $   13.25    $    14.50     $  11.82
                  Pro forma         $   13.92    $    14.70     $  11.92
========================================================================
</TABLE>

10. EMPLOYEE BENEFIT PLANS

The Company has several noncontributory defined benefit pension plans covering
substantially all of its employees. The defined benefits are based on years of
service and the employee's average annual base salary over a consecutive 3-year
period during the last ten years of employment plus one half of the highest
average annual bonus over a consecutive 5-year period during the last ten years
of employment. The Company's funding policy is to contribute annually the amount
necessary to satisfy the Internal Revenue Service's funding standards.
Contributions are intended to provide not only for benefits attributed to
service to date but also for those expected to be earned in the future. Chicago
Trust, a subsidiary of Alleghany Asset Management, Inc., is a qualified trust
company and, as such, serves as trustee for the assets of certain of the pension
plans.

      The following tables set forth the defined benefit plans' funded status at
December 31, 1998 and 1997 (in millions, except percentages):

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------
                                                            1998            1997
- ---------------------------------------------------------------------------------
<S>                                                      <C>             <C>
CHANGE IN PROJECTED BENEFIT OBLIGATIONS:
Projected benefit obligation at beginning of year        $  45.1         $  40.2
Service cost                                                 2.2             1.8
Interest cost                                                3.4             2.8
Amendments                                                   5.0              --
Actuarial loss                                               5.8             2.0
Benefits paid                                               (4.0)           (1.7)
Projected benefit obligation at end of year              $  57.5         $  45.1
=================================================================================
CHANGE IN PLAN ASSETS:
FAIR VALUE OF PLAN ASSETS AT BEGINNING OF YEAR           $  37.3         $  30.7
Actual return on plan assets                                 4.8             5.4
Company contributions                                        8.3             3.6
Benefits paid                                               (4.0)           (1.7)
Adjustment for split off due to AAM spinoff                 (1.5)             --
Other                                                         --            (0.7)
Fair value of plan assets at end of year                 $  44.9         $  37.3
=================================================================================
Funded status                                            $ (12.8)        $  (7.9)
Unrecognized net loss                                        2.3            (1.9)
Unrecognized prior service cost                              9.9             6.7
Pension liability included in other liabilities          $  (0.6)        $  (3.1)
=================================================================================
</TABLE>


                                       42
<PAGE>   34
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


<TABLE>
<CAPTION>
- --------------------------------------------------------------------------------------
                                                  1998            1997            1996
- --------------------------------------------------------------------------------------
<S>                                            <C>             <C>             <C>
Net pension cost included the
  following expense (income)
  components
Service cost -- benefits earned
  during the year                              $   2.2         $   1.8         $   1.8
Interest cost on projected
  benefit obligation                               3.4             2.8             3.0
Actual return on plan assets                      (2.9)           (2.5)           (3.4)
Net amortization and deferral                      1.8             1.8             2.4
- --------------------------------------------------------------------------------------
Net periodic pension cost
  included in costs and expenses               $   4.5         $   3.9         $   3.8
======================================================================================
</TABLE>


<TABLE>
<CAPTION>
- --------------------------------------------------------------------------
                                                1998                  1997
- --------------------------------------------------------------------------
<S>                                      <C>                     <C>
Assumptions used in computing
  the funded status of the plans
  are as follows
Range of rates for increases in
  compensation levels                     4.5%-5.5%              4.5%-5.5%
Range of weighted average
  discount rates                          6.0%-6.85%             6.5%-7.5%
Range of expected long-term
  rates of return                         4.0%-9.0%              4.0%-9.0%
==========================================================================
</TABLE>

      The Company provides supplemental retirement benefits through deferred
compensation programs and profit sharing plans for certain of its officers and
employees for which earnings were charged $6.3 million in 1998, $6.2 million in
1997, and $5.8 million in 1996.

      The Company also provides certain healthcare and life insurance benefits
for retired employees. The cost of these benefits is accrued during the period
that employees render service. The accrued postretirement benefit obligation was
$1.5 million and $1.7 million at December 31, 1998 and 1997, respectively. The
postretirement healthcare and life insurance (income) costs recognized were
$(.9) million, $.6 million, and $.7 million, for 1998, 1997, and 1996,
respectively.

11. COMPREHENSIVE INCOME

In 1997, the Financial Accounting Standards Board issued SFAS No. 130,
"Comprehensive Income". This statement was implemented retroactively by the
Company in 1998. The statement requires that an enterprise (a) classify items of
other comprehensive income by their nature in a financial statement and (b)
display the accumulated balance of other comprehensive income separately from
retained earnings and additional paid-in capital in the equity section of a
statement of financial position. Accumulated other comprehensive income of the
Company consists of net unrealized gains on investment securities and foreign
exchange translation adjustments.

<TABLE>
<CAPTION>
- ------------------------------------------------------------------------------------
                                            Before              Tax           Net of
                                               Tax          Expense       Tax Amount
- ------------------------------------------------------------------------------------
<S>                                       <C>              <C>              <C>
1998
Unrealized Gains on Investments:
Unrealized holding gains
  arising during period                   $ 80,227         $(28,080)        $ 52,147
Less: reclassification adjustments
  for gains realized in net income          (7,719)           2,702           (5,017)
- ------------------------------------------------------------------------------------
Other comprehensive income                $ 72,508         $(25,378)        $ 47,130
====================================================================================

1997
Unrealized Gains on Investments:
Unrealized holding gains
  arising during period                   $ 88,391         $(30,937)        $ 57,454
Less: reclassification adjustments
  for gains realized in net income            (853)             299             (554)
- ------------------------------------------------------------------------------------
Other comprehensive income                $ 87,538         $(30,638)        $ 56,900
====================================================================================

1996
Unrealized Gains on Investments:
Unrealized holding gains
  arising during period                   $ 47,389         $(16,586)        $ 30,803
Less: reclassification adjustments
  for gains realized in net income          (4,307)           1,507           (2,800)
- ------------------------------------------------------------------------------------
Other comprehensive income                $ 43,082         $(15,079)        $ 28,003
====================================================================================
</TABLE>

12. EARNINGS PER SHARE

Earnings per share has been computed in accordance with the provisions of SFAS
128. The following is a reconciliation of the income and share data used in the
basic and diluted earnings per share computations for the years ended December
31 (in thousands, except per share amounts):

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------
                                                1998              1997              1996
- ----------------------------------------------------------------------------------------
<S>                                       <C>               <C>               <C>
Income from continuing
  operations                              $   63,381        $   51,400        $   40,470
Discontinued operations                       32,725            54,267            46,578
- ----------------------------------------------------------------------------------------
Income available to common
  stockholders for basic earnings
  per share                                   96,106           105,667            87,048
- ----------------------------------------------------------------------------------------
  Effect of dilutive securities                   --                --                --
- ----------------------------------------------------------------------------------------
Income available to common
  stockholders for diluted
  earnings per share                      $   96,106        $  105,667        $   87,048
========================================================================================
Weighted average common shares
  outstanding applicable to
  basic earnings per share                 7,251,238         7,287,459         7,360,584
  Effect of dilutive securities
  Options                                    130,126            72,512            12,456
- ----------------------------------------------------------------------------------------
Adjusted weighted average common
  shares outstanding applicable to
  diluted earnings per share               7,381,364         7,359,971         7,373,040
========================================================================================
</TABLE>


                                       43
<PAGE>   35
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS.

ALLEGHANY CORPORATION AND SUBSIDIARIES


      Contingently issuable shares of 76,648, 57,432, and 59,888 were
potentially available during 1998, 1997, and 1996, respectively, but were not
included in the computation of diluted earnings per share because the impact was
anti-dilutive to the earnings per share calculation.

13. COMMITMENTS AND CONTINGENCIES

The Company leases certain facilities, furniture and equipment under long-term
lease agreements. In addition, certain land, office space and equipment are
leased under noncancelable operating leases which expire at various dates
through 2013. Rent expense was $9.7 million, $7.9 million, and $6.5 million in
1998, 1997, and 1996, respectively.

      The aggregate minimum payments under operating leases with initial or
remaining terms of more than one year are $9.8 million, $8.8 million, $7.6
million, $5.8 million, $4.3 million, and $22.8 million in 1999, 2000, 2001,
2002, 2003 and thereafter, respectively.

      The Company's subsidiaries and division are parties to pending litigation
and claims in connection with the ordinary course of their businesses. Each such
operating unit makes provisions for estimated losses to be incurred in such
litigation and claims, including legal costs. In the opinion of management,
based in part on advice of counsel, such provisions are adequate.

14. FAIR VALUE OF FINANCIAL INSTRUMENTS

The estimated fair values of the Company's financial instruments are as follows
(in thousands):

<TABLE>
<CAPTION>
- -----------------------------------------------------------------------------------------
                              1998                                1997
                        Calculated                          Calculated
                          Carrying              Fair          Carrying              Fair
                            Amount             Value            Amount             Value
- -----------------------------------------------------------------------------------------
<S>                     <C>               <C>               <C>               <C>
ASSETS
Investments             $2,126,033        $2,126,033        $2,060,999        $2,060,999
Notes receivable        $   91,536        $   91,536        $   91,536        $   91,536
Liabilities
Long-term debt          $  439,795        $  439,795        $  389,641        $  391,898
=========================================================================================
</TABLE>

      The following methods and assumptions were used to estimate the fair value
of each class of financial instruments for which it is practicable to estimate
fair value:

      INVESTMENTS: The fair value of fixed maturities and equity securities are
based upon quoted market prices. The fair value of short term investments
approximates amortized cost.

      NOTES RECEIVABLE: The carrying amount approximates fair value because
interest rates approximate market rates.

      LONG-TERM DEBT: The fair value of the Company's long-term debt is
estimated based on the quoted market prices for the same or similar issues or on
current rates offered to the Company for debt of the same remaining maturities.
The fair value includes the effects of the interest rate swaps.

15. SEGMENTS OF BUSINESS

Information concerning the Company's continuing operations by industry segment
as of and for the years ended December 31, 1998, 1997 and 1996, respectively, is
summarized as follows (in thousands):

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------
                                             1998              1997              1996
- -------------------------------------------------------------------------------------
<S>                                    <C>               <C>               <C>
REVENUES
Asset management                       $  125,060        $   78,823        $   53,280
Property and casualty insurance           508,602           453,135           410,867
Mining and filtration                     201,137           203,295           198,518
Corporate activities                       84,194            61,401            71,817
- -------------------------------------------------------------------------------------
  Total                                $  918,993        $  796,654        $  734,482
=====================================================================================
EARNINGS FROM CONTINUING
  OPERATIONS, BEFORE
  INCOME TAXES
Asset management                       $   35,733        $   19,876        $    9,726
Property and casualty insurance            68,392            60,405            46,755
Mining and filtration                      28,507            33,178            24,559
Corporate activities                       21,854             9,319            23,176
- -------------------------------------------------------------------------------------
                                          154,486           122,778           104,216
Interest expense                           32,271            32,111            26,573
Corporate administration                   31,199            25,437            20,253
- -------------------------------------------------------------------------------------
  Total                                $   91,016        $   65,230        $   57,390
=====================================================================================

- -------------------------------------------------------------------------------------
IDENTIFIABLE ASSETS AT
  DECEMBER 31
Asset management                       $  118,458        $   42,516        $   50,757
Property and casualty insurance         3,064,155         2,240,549         2,053,101
Mining and filtration                     331,714           302,183           310,444
Corporate activities                      768,117           729,677           689,301
- -------------------------------------------------------------------------------------
  Total                                $4,282,444        $3,314,925        $3,103,603
=====================================================================================
CAPITAL EXPENDITURES
Asset management                       $    1,520        $    1,100        $    1,190
Property and casualty insurance             8,412             2,472             1,270
Mining and filtration                      19,360            12,057            16,379
Corporate activities                        2,605               951               338
- -------------------------------------------------------------------------------------
  Total                                $   31,897        $   16,580        $   19,177
=====================================================================================
DEPRECIATION AND
  AMORTIZATION
Asset management                       $    1,262        $    1,157        $      910
Property and casualty insurance             6,117             6,235             6,018
Mining and filtration                      16,812            16,143            16,307
Corporate activities                        1,128               643               780
- -------------------------------------------------------------------------------------
  Total                                $   25,319        $   24,178        $   24,015
=====================================================================================
</TABLE>


                                       44
<PAGE>   36
16. QUARTERLY RESULTS OF OPERATIONS (UNAUDITED)

Selected quarterly financial data for 1998 and 1997 are presented below (in
thousands, except per share amounts):

<TABLE>
<CAPTION>
- -------------------------------------------------------------------------------------------
                                                       QUARTERS ENDED
- -------------------------------------------------------------------------------------------
                                    Mar. 31         Jun. 30         Sep. 30         Dec. 31
- -------------------------------------------------------------------------------------------
<S>                                <C>             <C>             <C>             <C>
1998
Revenues from continuing
  operations                       $206,792        $232,168        $244,613        $235,420
- -------------------------------------------------------------------------------------------
Earnings from continuing
  operations                       $ 12,959        $ 17,228        $ 19,834        $ 13,360
- -------------------------------------------------------------------------------------------
Earnings from discontinued
  operations, net of tax             21,241          11,484              --              --
- -------------------------------------------------------------------------------------------
Net earnings                       $ 34,200        $ 28,712        $ 19,834        $ 13,360
- -------------------------------------------------------------------------------------------
Basic earnings per share of
  common stock: *
- -------------------------------------------------------------------------------------------
Continuing operations              $   1.76        $   2.38        $   2.76        $   1.85
- -------------------------------------------------------------------------------------------
Discontinued operations                2.88            1.59              --              --
- -------------------------------------------------------------------------------------------
Basic net earnings                 $   4.64        $   3.97        $   2.76        $   1.85
===========================================================================================

1997
- -------------------------------------------------------------------------------------------
Revenues from continuing
  operations                       $194,346        $196,309        $204,974        $201,025
- -------------------------------------------------------------------------------------------
Earnings from continuing
  operations                       $  6,980        $ 17,101        $ 13,973        $ 13,346
- -------------------------------------------------------------------------------------------
Earnings from discontinued
  operations, net of tax              5,928          16,838          16,039          15,462
- -------------------------------------------------------------------------------------------
Net earnings                       $ 12,908        $ 33,939        $ 30,012        $ 28,808
- -------------------------------------------------------------------------------------------
Basic earnings per share
  of common stock: *
- -------------------------------------------------------------------------------------------
Continuing operations              $    .96        $   2.36        $   1.91        $   1.82
- -------------------------------------------------------------------------------------------
Discontinued operations                  81            2.33            2.19            2.11
- -------------------------------------------------------------------------------------------
Basic net earnings                 $   1.77        $   4.69        $   4.10        $   3.93
===========================================================================================
</TABLE>

*     Adjusted to reflect subsequent stock dividends and the adoption of
      Financial Accounting Standards No.128, "Earnings per Share."

      Earnings per share by quarter may not equal the amount for the year due to
the timing of share transactions and rounding.

17. OTHER INFORMATION

a. Other assets shown in the consolidated balance sheets at December 31, 1998
and 1997 includes goodwill, net of accumulated amortization. The amount of
goodwill included in the balance sheet is as follows (in thousands):

<TABLE>
<CAPTION>
- ----------------------------------------------------------------------
                                                          Amortization
                                 1998            1997           Period
- ----------------------------------------------------------------------
<S>                          <C>             <C>              <C>
Underwriters Re Group        $202,237        $ 43,565         20 years
World Minerals                 43,375          29,790         40 years
Heads and Threads               2,876              --         15 years
- ----------------------------------------------------------------------
                             $248,488        $ 73,355
======================================================================
</TABLE>

      In addition, other assets shown at December 31, 1998 and 1997 includes
$93.4 million and $29.6 million, respectively, of deferred acquisition costs.
Amortization of deferred acquisition costs included in the 1998, 1997, and 1996
statement of earnings were $113.2 million, $94.4 million, and $88.9 million,
respectively.

      b. Other liabilities shown in the consolidated balance sheets include the
following amounts at December 31, 1998 and 1997 (in millions):

<TABLE>
<CAPTION>
- --------------------------------------------------------
                                    1998           1997
- --------------------------------------------------------
<S>                              <C>            <C>
Accounts payable                 $  24.8        $  22.6
Unearned premiums                $ 389.6        $ 136.3
Reinsurance payable              $  69.4        $  30.9
Funds held for reinsurers        $ 143.8        $  99.3
=======================================================
</TABLE>

      c. Property and equipment, net of accumulated depreciation and
amortization at December 31, 1998 and 1997, are as follows (in thousands):

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------
                                                                           Depreciation
                                             1998              1997              Period
- ---------------------------------------------------------------------------------------
<S>                                     <C>               <C>
Land                                    $  17,157         $  16,575                  --
Buildings and improvements years           58,348            47,656         30-40 years
Furniture and equipment years             173,712           158,151          3-20 years
Ore reserves                               32,810            32,082            30 years
Leasehold improvements                      4,868             2,924             Various
                                                            286,895             257,388
- ---------------------------------------------------------------------------------------
Less: Accumulated depreciation
  and amortization                        (78,197)          (64,084)
- ---------------------------------------------------------------------------------------
                                        $ 208,698         $ 193,304
=======================================================================================
</TABLE>


                                       45
<PAGE>   37
INDEPENDENT AUDITORS' REPORT

Alleghany Corporation and Subsidiaries

[KPMG LOGO]

Certified Public Accountants
757 Third Avenue
New York, NY 10017


THE BOARD OF DIRECTORS AND STOCKHOLDERS ALLEGHANY CORPORATION:

We have audited the accompanying consolidated balance sheets of Alleghany
Corporation and subsidiaries as of December 31, 1998 and 1997, and the related
consolidated statements of earnings, changes in common stockholders' equity, and
cash flows for each of the years in the three-year period ended December 31,
1998. These consolidated financial statements, appearing on pages 30 through 45,
are the responsibility of the Company's management. Our responsibility is to
express an opinion on these consolidated financial statements based on our
audits.

      We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audits provide a reasonable basis for our opinion.

      In our opinion, the consolidated financial statements referred to above
present fairly, in all material respects, the financial position of Alleghany
Corporation and subsidiaries at December 31, 1998 and 1997, and the results of
their operations and their cash flows for each of the years in the three-year
period ended December 31, 1998, in conformity with generally accepted accounting
principles.

/s/ KPMG LLP

KPMG LLP

February 19, 1999


                                       46
<PAGE>   38
                                    APPENDIX

<TABLE>
<CAPTION>
Page                Narrative Description of Graphic
<S>                <C>
5                  A photograph of John J. Burns, Jr., President and F.M. Kirby,
                   Chairman, appears in the paper format.

15                 A map depicting World Minerals' world headquarters diatomite
                   mines and plants, perlite mines and plants, and sales offices
                   appears in the paper format.

</TABLE>


<PAGE>   1
 
                                                                      EXHIBIT 21
 
                           SUBSIDIARIES OF ALLEGHANY
 
Alleghany Asset Management, Inc. (Delaware)
  Chicago Deferred Exchange Corporation (Illinois)
  The Chicago Trust Company (Illinois)
     Security Trust Company (California)
     Montag & Caldwell Inc. (Georgia)
  Blairlogie International LLC (Delaware)
     Pacific Shelf 797 Limited (Scotland)
  Veredus Asset Management LLC (Kentucky -- 40%)
Alleghany Properties, Inc. (Delaware)
  Sacramento Properties Holdings, Inc. (California)
Alleghany Funding Corporation (Delaware)
Alleghany Capital Corporation (Delaware)
Mineral Holdings Inc. (Delaware -- 93.8%)
  World Minerals Inc. (Delaware)
     World Minerals Acquisition Corp. (Pennsylvania)
     Advanced Minerals Corporation (Delaware)
       Fluxx Corp. (Delaware)
       Fluxx France S.A. (France)
     LeVay & Houseman, Inc. (Nevada)
     World Minerals Italiana S.r.L. (Italy)
     World Minerals Espanola, S.A. (Spain)
     World Minerals (U.K.) Limited (United Kingdom)
     WM Canada Inc. (Canada)
     World Minerals do Brasil Ltda. (Brazil)
     World Minerals Europe, S.A. (France)
     World Minerals Island, h.f. (Iceland)
     World Minerals Japan K.K. (Japan)
     Celite Corporation (Delaware)
       Celite Europe Corporation (Delaware)
          Celite France, S.A. (France)
       Celite B.V. (Amsterdam, the Netherlands)
          Celite Hispanica, S.A. (Spain)
          Kisilidjan, h.f. (Iceland -- 48.56%)
       Celite Mexico S.A. de C.V. (Mexico)
          Almeria, S.A. de C.V. (Mexico)
          Diatomita San Nicolas, S.A. de C.V. (Mexico)
       Celite Pacific Limited (Hong Kong)
       Celite China Inc. (Delaware)
          Linjiang Celite Diatomite Company Ltd. (China -- 72.65%)
       Celite Jilin, Inc. (Delaware)
          Changbai Celite Diatomite Company Ltd. (China -- 70.11%)
       Celite Minerals China Corporation (Delaware)
          Linjiang Lin-Lin Celite Diatomite Company Limited (China -- 71.89%)
       Celite Chile S.A. (Chile)
          Sociedad Minera Celite del Peru, S.A. (Peru)
       Celite Korea Ltd. (South Korea)
     Harborlite Corporation (Delaware)
       Perlite, Inc. (Delaware)
       Harborlite (U.K.) Limited (United Kingdom)
<PAGE>   2
 
       Harborlite France (France)
       Harborlite Aegean Endustri Mineralleri-Sanayi, a.s. (Turkey)
       Substancias y Mineralas Navajas S.A. de C.V. (Mexico)
       Europerlite B.V. (Amsterdam, the Netherlands)
          Europerlita Espanola, S.A. (Spain)
          Europerlite Italiana, S.p.A. (Italy)
Bibb Steel and Supply Company (Delaware)
MSL Property Holdings, Inc. (Delaware)
MSL Capital Recovery Corp. (Delaware)
  J & E Corporation (Tennessee)
Underwriters Re Group, Inc. (Delaware)
  Underwriters Reinsurance Company (New Hampshire)
     Commercial Underwriters Insurance Company (California)
     Underwriters Insurance Company (Nebraska)
       Texas Underwriters General Agency, Inc. (Texas)
     Newmarket Underwriters Insurance Company (New Hampshire)
     Venton Holdings Ltd. (Bermuda)
       New Street Holdings Ltd. (United Kingdom)
          Venton Underwriting Agencies Ltd. (United Kingdom)
            Yachtsure Ltd. (United Kingdom -- majority owned)
          Venton Services Ltd. (United Kingdom)
          XL Prevent Risk Services Ltd. (United Kingdom -- 50%)
          Venton Risk Services Ltd. (United Kingdom)
          Venton Underwriting Management Ltd. (United Kingdom)
          Talbot Underwriting Limited (United Kingdom)
       Venton Insurance Ltd. (Bermuda)
       Venton Underwriting Ltd. (Bermuda)
  The Center Insurance Services, Inc. (Delaware)
     The Center E&S Insurance Agency, Inc. (Georgia)
     The Center Special Risk Insurance Agency, Inc. (Georgia)
     The Center Marine Managers, Inc. (New York -- 95%)
     The Center Financial Markets Insurance Agency, Inc. (Illinois)
     URC Risk Managers, Inc. (Delaware)
     Carnegie Holdings, Inc. (California -- 35%)
  URC Representatives Ltd. (United Kingdom)
  URC International Inc. (Barbados)
  URC Management Inc. (Barbados)
Heads and Threads (PA) LLC (Delaware)
Heads and Threads LLC (Delaware)

<PAGE>   1
                                                                      Exhibit 23


               CONSENT OF INDEPENDENT CERTIFIED PUBLIC ACCOUNTANTS


The Board of Directors
Alleghany Corporation:

We consent to incorporation by reference in the Registration Statements Nos.
33-27598, 333-323, 333-37237 and 333-57133 on Forms S-8 and Nos. 33-55707,
33-62477, 333-09881 and 333-13971 on Forms S-3 of our reports dated February 19,
1999, relating to the financial statements and related schedules of Alleghany
Corporation and subsidiaries, which appear in, or are incorporated by reference
in this Annual Report on Form 10-K of Alleghany Corporation for the fiscal year
ended December 31, 1998. We also consent to the reference to our Firm in
Registration Statement Nos. 33-27598, 333-323, 333-37237 and 333-57133 and under
the heading "Experts" in Registration Statement Nos. 33-55707, 33-62477,
333-09881 and 333-13971.


/s/ KPMG LLP

New York, New York
March 18, 1999


<TABLE> <S> <C>

<ARTICLE> 7
<LEGEND>
This schedule contains summary financial information extracted from (a)
Alleghany Corporation and subsidiaries consolidated balance sheet at 12/31/98
and the consolidated statement of earnings for the 12 months then ended 12/31/98
and is qualified in its entirety by reference to such (b) financial statements.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1998
<PERIOD-START>                             JAN-01-1998
<PERIOD-END>                               DEC-31-1998
<DEBT-HELD-FOR-SALE>                         1,301,707
<DEBT-CARRYING-VALUE>                                0
<DEBT-MARKET-VALUE>                                  0
<EQUITIES>                                     824,326
<MORTGAGE>                                           0
<REAL-ESTATE>                                        0
<TOTAL-INVEST>                               2,126,033
<CASH>                                          82,348
<RECOVER-REINSURE>                             571,689
<DEFERRED-ACQUISITION>                               0
<TOTAL-ASSETS>                               4,282,444
<POLICY-LOSSES>                              1,554,818
<UNEARNED-PREMIUMS>                                  0
<POLICY-OTHER>                                       0
<POLICY-HOLDER-FUNDS>                                0
<NOTES-PAYABLE>                                439,795
                                0
                                          0
<COMMON>                                             0
<OTHER-SE>                                   1,247,428
<TOTAL-LIABILITY-AND-EQUITY>                 4,282,444
                                     420,809
<INVESTMENT-INCOME>                            166,737
<INVESTMENT-GAINS>                               7,719
<OTHER-INCOME>                                 200,815
<BENEFITS>                                     288,259
<UNDERWRITING-AMORTIZATION>                          0
<UNDERWRITING-OTHER>                                 0
<INCOME-PRETAX>                                 91,016
<INCOME-TAX>                                    27,635
<INCOME-CONTINUING>                             63,381
<DISCONTINUED>                                  32,725
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    96,106
<EPS-PRIMARY>                                    13.25
<EPS-DILUTED>                                    13.02
<RESERVE-OPEN>                                       0
<PROVISION-CURRENT>                                  0
<PROVISION-PRIOR>                                    0
<PAYMENTS-CURRENT>                                   0
<PAYMENTS-PRIOR>                                     0
<RESERVE-CLOSE>                                      0
<CUMULATIVE-DEFICIENCY>                              0
        

</TABLE>


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