Exhibit 10.14.11
 
           SECOND AMENDMENT TO SHORT TERM REVOLVING CREDIT AGREEMENT
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          THIS SECOND AMENDMENT TO SHORT TERM REVOLVING CREDIT AGREEMENT, dated
as of May 13, 1998 (this "Amendment"), by and among X.L. Insurance Company, Ltd.
and X.L. Global Reinsurance Company, Ltd. (formerly known as X.L. Reinsurance
Company, Ltd.) (the "Borrowers"), X.L. Insurance Company, Ltd. and EXEL
Acquisition Ltd. (the "Guarantors"), MELLON BANK, N.A., (the "Agent") and the
banks listed on the signature pages hereto (collectively, the "Banks").

                              W I T N E S S E T H:
                              ------------------- 

          WHEREAS, the Borrower, the Guarantors, the Banks, and the Agent are
parties to a Short Term Revolving Credit Agreement, dated as of June 6, 1997 and
amended as of November 5, 1997 (as so amended, the "Credit Agreement"), pursuant
to which the Banks have agreed, on the terms and subject to the conditions
described therein, to make Loans to the Borrowers; and

          WHEREAS, the Borrowers and the Banks wish to make certain changes to
the Credit Agreement; and

          WHEREAS, capitalized terms used herein and not otherwise defined shall
have the meanings assigned to them in the Credit 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 CREDIT AGREEMENT.  Section 2.04(b) of the
                      -----------------------------                         
Credit Agreement is hereby amended to read in its entirety as follows:

          (b) Applicable Margin.  "Applicable Margin" for any day shall mean
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     0.200% plus the Utilization Rate for such day.  "Utilization Rate" shall
     mean (x) 0.050% for any day on which the aggregate outstanding principal
     amount of all Loans under this Agreement exceeds 66% of the sum of the
     Committed Amounts of all Banks on such day, (y) 0.025% for any day on which
     the aggregate outstanding principal amount of all Loans under this
     Agreement exceeds 33%, but is equal to or less than 66%, of the sum of the
     Committed Amounts of all Banks on such day and (z) zero for each other day.

          SECTION 2.  CONFIRMATION OF EXTENSION OF EXPIRATION DATE.  By their
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execution hereof, the Banks hereby confirm that the Expiration Date under and as

 
defined in the Credit Agreement has been extended to May 5, 1999,
notwithstanding the fact that not all of the Banks had consented to such
extension in writing by May 6, 1998 (which was the "Reset Date" in 1998, as used
in Section 2.13 of the Credit Agreement).

          SECTION 3.  EFFECT OF AMENDMENT.  The amendment made in Section 1 of
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the Agreement shall be effective as of June 6, 1998. The Credit 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
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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
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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.

                              X.L. INSURANCE COMPANY, LTD.
                                as a Borrower and as a Guarantor


                              By:__________________________________
                              Title:_______________________________



                              X.L. GLOBAL REINSURANCE COMPANY, LTD. (formerly
                                known as X.L. Reinsurance Company, Ltd.,
                                as a Borrower


                              By:__________________________________
                              Title:_______________________________



                              EXEL ACQUISITION LTD.,
                                as a Guarantor


                              By:__________________________________
                              Title:_______________________________

                                      -2-


                              MELLON BANK, N.A., as a Bank
                                  and as Agent


                              By:__________________________________
                              Title:_______________________________ 


                              BANK OF TOKYO - MITSUBISHI LTD.,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________



                              DEUTSCHE BANK AG, NEW YORK OR CAYMAN ISLANDS
                                BRANCHES,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________



                              By:__________________________________
                              Title:_______________________________



                              THE BANK OF NOVA SCOTIA,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________



                              THE CHASE MANHATTAN BANK,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________



                              THE BANK OF BERMUDA LIMITED,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________
                              ROYAL BANK OF CANADA,
                                  as a Bank

                                      -3-

 
                              By:__________________________________
                              Title:_______________________________



                              BANQUE NATIONALE DE PARIS,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________



                              By:__________________________________
                              Title:_______________________________



                              BANK OF AMERICA NT&SA,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________




                              CREDIT LYONNAIS,
                                  as a Bank


                              By:__________________________________
                              Title:_______________________________

                              


                              By:__________________________________
                              Title:_______________________________




                              BANK AUSTRIA AKTIENGESELLSCHAFT,
                                   as a Bank


                              By:__________________________________
                              Title:_______________________________

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