<PAGE>
<TABLE>
<CAPTION>
NUMBER OF SHARES OF
COMMON STOCK WHICH
MAY BE OFFERED PURSUANT
TO THE PROSPECTUS
----------------------------
<S> <C>
Malcolm I. Glazer Trust................................. 10,395,384
Norex America, Inc...................................... 2,879,224 (1)
Bank of America National Trust and Savings Association.. 1,523,605
Cargill Financial Services Corporation.................. 1,515,040
Peter M. Holt........................................... 1,021,968 (2)(3)(4)
TCW Special Credits Fund II, L.P........................ 871,149 (5)
Benjamin D. Holt, Jr.................................... 840,097 (3)(4)
TCW Special Credits Fund IIb, L.P....................... 613,362 (5)
Robert W. Jackson Trust................................. 380,436 (6)
Midelfart & Co. A/S..................................... 335,069
The Weyerhaeuser Company Master Pension Trust........... 267,726 (5)
Norex Plc............................................... 260,000 (1)
Canadian Imperial Bank of Commerce...................... 259,396
A/S Konsernbygg......................................... 223,379
S Stock GST Trust for Peter M. Holt..................... 220,477 (3)
Holt Corporate Stock Marital Trust -- 1985.............. 207,582 (3)
Holt Corporate Stock Life Trust -- 1985................. 200,885 (3)
UNI Storebrand AS....................................... 127,535
S Stock GST Trust for Anne Holt......................... 120,478 (4)
The Inland Steel Industries Pension Trust............... 118,986 (5)
S Stock GST Trust for Benjamin D. Holt III.............. 60,477 (4)
James C. Jewett......................................... 36,429
Peter Holt H-R Trust.................................... 28,032
Robert H. Parks, Jr..................................... 20,467
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Total................................................ 22,527,183
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</TABLE>
(1) Norex Plc owns approximately 46% of Norex America, Inc. Norex Plc has
reported that it purchased its shares from Prosperity Investments, Inc. in
a private transaction in May 1994.
(2) 60,000 of such shares are reported by Peter M. Holt to be held by him and
his wife, Juliana, jointly.
(3) Sole voting and investment power over the shares held by the S Stock Trust
GST for Peter M. Holt, the Holt Corporate Stock Marital Trust-- 1985, the
Holt Corporate Stock Life Trust-- 1985 and the Peter Holt H-R Trust is held
by Peter M. Holt. Benjamin D. Holt, Jr. shares voting and investment power
with respect to his shares with Peter M. Holt. Peter M. Holt also owns an
additional 115,960 shares of Common Stock purchased by Peter M. Holt
Grantor Trust on the open market which are not subject to this Prospectus.
Consequently, Peter M. Holt has voting and investment power with respect to
an aggregate of 2,635,001 shares of Common Stock.
(4) Gives effect to a reallocation of shares of Common Stock among various Holt
family members and trusts, which Zapata is advised was made in May 1994.
(5) Sole voting and investment power over such shares is held by TCW Special
Credits (1,871,223 shares in the aggregate).
(6) 30,000 shares of this amount are in trust for Robert W. Jackson's two minor
children. Mr. Jackson also owns an additional 4,000 shares of Common Stock
purchased on the open market which are not subject to the Prospectus, as
supplemented.
Because Zapata does not know how many shares may be sold by the
Selling Stockholders pursuant to the Prospectus, as supplemented, Zapata can
make no estimate as to the number of the Shares that will be held by the
respective Selling Stockholders upon termination of this offering.
Incorporation of Certain Documents by Reference
The following documents have been filed by Zapata with the Securities
and Exchange Commission (the "Commission") under the Securities Exchange Act of
1934, as amended (the "Exchange Act") (File No. 1-4219) since the date of the
Prospectus:
2
