Document:

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                                                                     Exhibit 4.6

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                          REGISTRATION RIGHTS AGREEMENT

                        DATED AS OF SEPTEMBER [___], 1999

                                  BY AND AMONG

                              BANCFIRST OHIO CORP.,

                              BFOH CAPITAL TRUST I
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                                       AND

                        SANDLER O'NEILL & PARTNERS, L.P.,

                              AS INITIAL PURCHASER

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                          REGISTRATION RIGHTS AGREEMENT

         THIS REGISTRATION RIGHTS AGREEMENT (the "AGREEMENT") is made and
entered into as of September [___], 1999 by and among BANCFIRST OHIO CORP., An
Ohio corporation (the "COMPANY"), BFOH CAPITAL TRUST I, a business trust formed
under the laws of the state of Delaware (the "TRUST"), and SANDLER O'NEILL &
PARTNERS, L.P. (the "INITIAL PURCHASER").

         This Agreement is made pursuant to the Purchase Agreement dated
September [___], 1999 (the "PURCHASE AGREEMENT"), by and among the Company, as
issuer of the ___% Junior Subordinated Deferrable Interest Debentures due
December 31, 2029, Series A (the "SUBORDINATED DEBENTURES"), the Trust and the
Initial Purchaser, which provides for, among other things, the sale by the Trust
to the Initial Purchaser of 25,000 of the Trust's ___% Capital Securities,
Series A, liquidation amount $1,000 per Capital Security (the "CAPITAL
SECURITIES"), the proceeds of which will be used by the Trust, together with the
proceeds from the sale of the Trust's Common Securities to the Company, to
purchase the Subordinated Debentures. The Capital Securities, together with the
Subordinated Debentures and the Company's guarantee agreement in respect of the
Capital Securities (the "CAPITAL SECURITIES GUARANTEE"), are collectively
referred to as the "SECURITIES." In order to induce the Initial Purchaser to
enter into the Purchase Agreement, the Company and the Trust have agreed to
provide to the Initial Purchaser and its direct and indirect transferees the
registration rights set forth in this Agreement. The execution and delivery of
this Agreement is a condition to the closing under the Purchase Agreement.

         In consideration of the foregoing, the parties hereto agree as follows:

         1.    DEFINITIONS. As used in this Agreement, the following capitalized
defined terms shall have the following meanings:

         "ADDITIONAL DISTRIBUTIONS" shall have the meaning set forth in Section
2(e) hereof.

         "ADVICE" shall have the meaning set forth in the last paragraph of
Section 3 hereof.

         "AFFILIATE" shall have the same meaning as given to that term in Rule
405 under the Securities Act or any successor rule thereunder.

         "APPLICABLE PERIOD" shall have the meaning set forth in Section 3(u)
hereof.

         "BUSINESS DAY" shall mean any day other than a Saturday, a Sunday, or a
day on which banking institutions in New York, New York or Wilmington, Delaware
are authorized or required by law or executive order to remain closed.

         "CLOSING TIME" shall mean the Closing Time as defined in the Purchase
Agreement.

         "COMPANY" shall have the meaning set forth in the preamble to this
Agreement and also includes the Company's successors and permitted assigns.

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         "DEBENTURES" shall collectively mean the Subordinated Debentures and
the Exchange Debentures.

         "DECLARATION" or "DECLARATION OF TRUST" shall mean the Amended and
Restated Declaration of Trust of BFOH Capital Trust I, dated as of the Closing
Time, by the trustees named therein and the Company as sponsor.

         "DEPOSITARY" shall mean The Depository Trust Company, or any other
depositary appointed by the Trust; PROVIDED, HOWEVER, that such depositary must
have an address in the Borough of Manhattan, in The City of New York.

         "EFFECTIVENESS PERIOD" shall have the meaning set forth in Section 2(b)
hereof.

         "EXCHANGE ACT" shall mean the Securities Exchange Act of 1934, as
amended from time to time.

         "EXCHANGE OFFER" shall mean the offer by the Company and the Trust to
the Holders to exchange all of the Registrable Securities (other than Private
Exchange Securities) for a like amount of Exchange Securities pursuant to
Section 2(a) hereof.

         "EXCHANGE OFFER REGISTRATION" shall mean a registration under the
Securities Act effected pursuant to Section 2(a) hereof.

         "EXCHANGE OFFER REGISTRATION STATEMENT" shall mean an exchange offer
registration statement on SEC Form S-4 (or, if applicable, on another
appropriate form), and all amendments and supplements to such registration
statement, in each case including the Prospectus contained therein, all exhibits
thereto and all documents incorporated by reference therein.

         "EXCHANGE PERIOD" shall have the meaning set forth in Section 2(a)
hereof.

         "EXCHANGE SECURITIES" shall mean (i) with respect to the Subordinated
Debentures, the ___% Junior Subordinated Deferrable Interest Debentures due
December 31, 2029, Series B (the "EXCHANGE DEBENTURES") containing terms
substantially identical to the Subordinated Debentures (except that they will
not contain terms with respect to the transfer restrictions under the Securities
Act (other than requiring minimum transfers thereof to be in blocks of $100,000
aggregate principal amount and multiples of $1,000 in excess thereof) and will
not provide for any Liquidated Damages thereon), (ii) with respect to the
Capital Securities, the Trust's ___% Capital Securities, Series B, liquidation
amount $1,000 per Capital Security (the "EXCHANGE CAPITAL SECURITIES")
containing terms substantially identical to the Capital Securities (except they
will not contain terms with respect to transfer restrictions under the
Securities Act (other than requiring minimum transfers thereof to be in blocks
of $100,000 aggregate liquidation amount and multiples of $1,000 in excess
thereof) and will not provide for any increase in Additional Distributions
thereon) and (iii) with respect to the Capital Securities Guarantee, the
Company's guarantee agreement in respect of the Exchange Capital Securities (the
"EXCHANGE CAPITAL SECURITIES GUARANTEE") containing terms substantially
identical to the Capital Securities Guarantee.

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         "HOLDER" shall mean the Initial Purchaser, for so long as it owns any
Registrable Securities, and each of its successors, assigns and direct and
indirect transferees who become registered owners of Registrable Securities
under the Indenture or Declaration of Trust.

         "INDENTURE" shall mean the Indenture relating to the Subordinated
Debentures and the Exchange Debentures, dated as of the Closing Time, between
the Company, as issuer, and Wilmington Trust Company, as trustee, as the same
may be amended from time to time in accordance with the terms thereof.

         "INITIAL PURCHASER" shall have the meaning set forth in the preamble to
this Agreement.

         "INSPECTORS" shall have the meaning set forth in Section 3(o) hereof.

         "ISSUE DATE" shall mean September [___], 1999, the date of original
issuance of the Securities.

         "LIQUIDATED DAMAGES" shall have the meaning set forth in Section 2(e)
hereof.

         "MAJORITY HOLDERS" shall mean the Holders of a majority of the
aggregate liquidation amount of outstanding Capital Securities.

         "PARTICIPATING BROKER-DEALER" shall have the meaning set forth in
Section 3(u) hereof.

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

         "PRIVATE EXCHANGE" shall have the meaning set forth in Section 2(a)
hereof.

         "PRIVATE EXCHANGE SECURITIES" shall have the meaning set forth in
Section 2(a) hereof.

         "PROSPECTUS" shall mean the prospectus included in a Registration
Statement, including any preliminary prospectus, and any such prospectus as
amended or supplemented by any prospectus supplement, including a prospectus
supplement with respect to the terms of the offering of any portion of the
Registrable Securities covered by a Shelf Registration Statement, and by all
other amendments and supplements to a prospectus, including post-effective
amendments, and in each case including all documents incorporated by reference
therein.

         "PURCHASE AGREEMENT" shall have the meaning set forth in the preamble
to this Agreement.

         "RECORDS" shall have the meaning set forth in Section 3(o) hereof.

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         "REGISTRABLE SECURITIES" shall mean the Securities and, if issued, the
Private Exchange Securities; PROVIDED, HOWEVER, that Securities or Private
Exchange Securities, as the case may be, shall cease to be Registrable
Securities when (i) a Registration Statement with respect to such Securities or
Private Exchange Securities for the exchange or resale thereof, as the case may
be, shall have been declared effective under the Securities Act and such
Securities or Private Exchange Securities, as the case may be, shall have been
disposed of pursuant to such Registration Statement, (ii) such Securities or
Private Exchange Securities, as the case may be, shall have been sold to the
public pursuant to Rule 144(k) (or any similar provision then in force, but not
Rule 144A) under the Securities Act or are eligible to be sold without
restriction as contemplated by Rule 144(k), (iii) such Securities or Private
Exchange Securities, as the case may be, shall have ceased to be outstanding or
(iv) with respect to the Securities, such Securities shall have been exchanged
for Exchange Securities upon consummation of the Exchange Offer and are
thereafter freely tradeable by the holder thereof (other than an Affiliate of
the Company).

         "REGISTRATION EXPENSES" shall mean any and all expenses incident to
performance of or compliance by the Company with this Agreement, including
without limitation: (i) all SEC or National Association of Securities Dealers,
Inc. (the "NASD") registration and filing fees, including, if applicable, the
fees and expenses of any "qualified independent underwriter" (and its counsel)
that is required to be retained by any Holder of Registrable Securities in
accordance with the rules and regulations of the NASD, (ii) all fees and
expenses incurred in connection with compliance with state securities or blue
sky laws (including reasonable fees and disbursements of one counsel for all
underwriters or Holders as a group in connection with blue sky qualification of
any of the Exchange Securities or Registrable Securities) and compliance with
the rules of the NASD, (iii) all expenses of any Persons in preparing or
assisting in preparing, word processing, printing and distributing any
Registration Statement, any Prospectus and any amendments or supplements
thereto, and in preparing or assisting in preparing, printing and distributing
any underwriting agreements, securities sales agreements and other documents
relating to the performance of and compliance with this Agreement, (iv) all
rating agency fees, (v) the fees and disbursements of counsel for the Company
and of the independent certified public accountants of the Company, including
the expenses of any "cold comfort" letters required by or incident to the
performance of and compliance with this Agreement, (vi) the reasonable fees and
expenses of the Trustees and their counsel and any exchange agent or custodian,
and (vii) the reasonable fees and expenses of any special experts retained by
the Company in connection with any Registration Statement.

         "REGISTRATION STATEMENT" shall mean any registration statement of the
Company and the Trust which covers any of the Exchange Securities or Registrable
Securities pursuant to the provisions of this Agreement, and all amendments and
supplements to any such Registration Statement, including post-effective
amendments, in each case including the Prospectus contained therein, all
exhibits thereto and all documents incorporated by reference therein.

         "RULE 144(K) PERIOD" shall mean the period of two years (or such
shorter period as may hereafter be referred to in Rule 144(k) under the
Securities Act (or similar successor rule)) commencing on the Issue Date.

         "SEC" shall mean the Securities and Exchange Commission.

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         "SECURITIES" shall have the meaning set forth in the preamble to this
Agreement.

         "SECURITIES ACT" shall mean the Securities Act of 1933, as amended from
time to time.

         "SHELF REGISTRATION" shall mean a registration effected pursuant to
Section 2(b) hereof.

         "SHELF REGISTRATION EVENT" shall have the meaning set forth in Section
2(b) hereof.

         "SHELF REGISTRATION EVENT DATE" shall have the meaning set forth in
Section 2(b) hereof.

         "SHELF REGISTRATION STATEMENT" shall mean a "shelf" registration
statement of the Company and the Trust pursuant to the provisions of Section
2(b) hereof which covers all of the Registrable Securities or all of the Private
Exchange Securities, as the case may be, on an appropriate form under Rule 415
under the Securities Act, or any similar rule that may be adopted by the SEC,
and all amendments and supplements to such registration statement, including
post-effective amendments, in each case including the Prospectus contained
therein, all exhibits thereto and all documents incorporated by reference
therein.

         "TIA" shall mean the Trust Indenture Act of 1939, as amended from time
to time.

         "TRUSTEES" shall mean any and all trustees under the Declaration, the
Indenture, the Capital Securities Guarantee or the Exchange Capital Securities
Guarantee.

          2.   REGISTRATION UNDER THE SECURITIES ACT.

         (1)   EXCHANGE OFFER. Except as set forth in Section 2(b) below, the
Company and the Trust shall, for the benefit of the Holders, at the Company's
cost, use best efforts to (i) cause to be filed with the SEC within 150 days
after the Issue Date an Exchange Offer Registration Statement on an appropriate
form under the Securities Act relating to the Exchange Offer, (ii) cause such
Exchange Offer Registration Statement to be declared effective under the
Securities Act by the SEC not later than the date which is 180 days after the
Issue Date, and (iii) keep such Exchange Offer Registration Statement effective
for not less than 30 calendar days (or longer if required by applicable law)
after the date notice of the Exchange Offer is mailed to the Holders. Promptly
after the effectiveness of the Exchange Offer Registration Statement, the
Company and the Trust shall commence the Exchange Offer, it being the objective
of such Exchange Offer to enable each Holder eligible and electing to exchange
Registrable Securities for a like principal amount of Exchange Debentures or a
like liquidation amount of Exchange Capital Securities, together with the
Exchange Capital Securities Guarantee, as applicable (provided that such Holder
(w) is not an Affiliate of the Trust or the Company, (x) is not a broker-dealer
tendering Registrable Securities acquired directly from the Trust or the
Company, (y) acquires the Exchange Securities in the ordinary course of such
Holder's business and (z) has no arrangements or understandings with any Person
to participate in the Exchange Offer for the purpose of distributing the
Exchange Securities), to transfer such Exchange Securities from and after their
receipt without any limitations or restrictions under the

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Securities Act and under state securities or blue sky laws (other than requiring
minimum transfers in blocks having an aggregate principal or liquidation amount,
as the case may be, of $100,000 and multiples of $1,000 in excess thereof).

         In connection with the Exchange Offer, the Company and the Trust shall:

         (1) mail to each Holder a copy of the Prospectus forming part of the
Exchange Offer Registration Statement, together with an appropriate letter of
transmittal and related documents;

         (2) keep the Exchange Offer open for acceptance for a period of not
less than 30 days after the date notice thereof is mailed to the Holders (or
longer if required by applicable law) (such period referred to herein as the
"EXCHANGE PERIOD");

         (3) utilize the services of the Depositary for the Exchange Offer with
respect to Capital Securities represented by a global certificate;

         (4) permit Holders to withdraw tendered Securities at any time prior to
the close of business, New York time, on the last Business Day of the Exchange
Period, by sending to the institution specified in the notice to Holders, a
telegram, telex, facsimile transmission or letter setting forth the name of such
Holder, the amount of Securities delivered for exchange and a statement that
such Holder is withdrawing his election to have such Securities exchanged;

         (5) notify each Holder that any Security not tendered by such Holder in
the Exchange Offer will remain outstanding and continue to accrue interest or
accumulate distributions, as the case may be, but will not retain any rights
under this Agreement (except in the case of the Initial Purchaser and
Participating Broker-Dealers as provided herein); and

         (6) otherwise comply in all respects with all applicable laws relating
to the Exchange Offer.

         If the Initial Purchaser determines upon advice of its outside counsel
that it is not eligible to participate in the Exchange Offer with respect to the
exchange of Securities constituting any portion of an unsold allotment in the
initial placement, as soon as practicable upon receipt by the Company and the
Trust of a written request from the Initial Purchaser, the Company and the
Trust, as applicable, shall issue and deliver to the Initial Purchaser in
exchange (the "PRIVATE EXCHANGE") for the Securities held by the Initial
Purchaser a like liquidation amount of Exchange Capital Securities of the Trust
or, in the event the Trust is liquidated and Subordinated Debentures are
distributed, a like principal amount of the Exchange Debentures of the Company,
together with the Exchange Capital Securities Guarantee, in each case that are
identical (except that such securities may bear a customary legend with respect
to restrictions on transfer pursuant to the Securities Act) to the Exchange
Securities (the "PRIVATE EXCHANGE SECURITIES") and which are issued pursuant to
the Indenture or the Declaration (which provides that the Exchange Securities
will not be subject to the transfer restrictions set forth in the Indenture or
the Declaration, as applicable (other than requiring minimum transfers in blocks
having an aggregate principal or liquidation amount, as the case may be, of
$100,000 and multiples of $1,000 in excess thereof), and that the Exchange
Securities, the Private Exchange Securities and the Securities will vote and
consent together on all matters as one

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class and that none of the Exchange Securities, the Private Exchange Securities
or the Securities will have the right to vote or consent as a separate class on
any matter). The Private Exchange Securities shall be of the same series as the
Exchange Securities, and the Company and the Trust will seek to cause the CUSIP
Service Bureau to issue the same CUSIP numbers for the Private Exchange
Securities as for the Exchange Securities issued pursuant to the Exchange Offer.

         As soon as practicable after the close of the Exchange Offer and, if
applicable, the Private Exchange, the Company and the Trust, as the case
requires, shall:

    (i)  accept for exchange all Securities or portions thereof tendered and
not validly withdrawn pursuant to the Exchange Offer or the Private Exchange;

    (ii) deliver, or cause to be delivered, to the applicable Trustee for
cancellation all Securities or portions thereof so accepted for exchange by the
Company and the Trust; and

    (iii) issue, and cause the applicable Trustee under the Indenture or
the Declaration, as applicable, to promptly authenticate and deliver to each
Holder, new Exchange Securities or Private Exchange Securities, as applicable,
equal in principal amount to the principal amount of the Subordinated Debentures
or equal in liquidation amount to the liquidation amount of the Capital
Securities as are surrendered by such Holder, and will execute, and cause the
applicable Trustee to execute, the Exchange Capital Securities Guarantee.

         Distributions on each Exchange Capital Security and interest or
distributions on each Exchange Debenture and Private Exchange Security issued
pursuant to the Exchange Offer and in the Private Exchange will accumulate or
accrue from the last date on which a distribution or interest was paid on the
Capital Security or the Subordinated Debenture surrendered in exchange therefor
or, if no distribution or interest has been paid on such Capital Security or
Subordinated Debenture, from the Issue Date. To the extent not prohibited by any
law or applicable interpretation of the staff of the SEC, the Company and the
Trust shall use their best efforts to complete the Exchange Offer as provided
above, and shall comply with the applicable requirements of the Securities Act,
the Exchange Act and other applicable laws in connection with the Exchange
Offer. The Exchange Offer shall not be subject to any conditions other than the
conditions referred to in Section 2(b)(i) and (ii) below and those conditions
that are customary in similar exchange offers. Each Holder of Registrable
Securities who wishes to exchange such Registrable Securities for Exchange
Securities in the Exchange Offer will be required to make certain customary
representations in connection therewith, including, in the case of any Holder of
Capital Securities, representations that (i) it is not an Affiliate of the Trust
or the Company, (ii) it is not a broker-dealer tendering Registrable Securities
acquired directly from the Trust or Company, (iii) the Exchange Securities to be
received by it were acquired in the ordinary course of its business and (iv) at
the time of the Exchange Offer, it has no arrangements or understandings with
any Person to participate in the distribution (within the meaning of the
Securities Act) of the Exchange Capital Securities. The Company and the Trust
shall inform the Initial Purchaser, after consultation with the applicable
Trustees, of the names and addresses of the Holders to whom the Exchange Offer
is made, and the Initial Purchaser shall have the right to contact such Holders
in order to facilitate the tender of Registrable Securities in the Exchange
Offer.

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         Upon consummation of the Exchange Offer in accordance with this Section
2(a), the provisions of this Agreement shall continue to apply, MUTATIS
MUTANDIS, solely with respect to Registrable Securities that are Private
Exchange Securities and Exchange Securities held by Participating
Broker-Dealers, and the Company and the Trust shall have no further obligation
to register the Registrable Securities (other than Private Exchange Securities)
held by any Holder pursuant to Section 2(b) of this Agreement.

         (2) SHELF REGISTRATION. In the event that (i) the Company or the Trust
reasonably determine, after conferring with counsel (which may be in-house
counsel), that the Exchange Offer Registration provided in Section 2(a) above is
not available under applicable law and regulations and currently prevailing
interpretations of the staff of the SEC, (ii) the Company shall determine in
good faith that there is a reasonable likelihood that, or a material uncertainty
exists as to whether, consummation of the Exchange Offer would result in (x) the
Trust becoming subject to federal income tax with respect to income received or
accrued on the Debentures, (y) the interest payable by the Company on the
Debentures not being deductible by the Company for United States federal income
tax purposes or (z) the Trust becoming subject to more than a DE MINIMIS amount
of other taxes, duties or governmental charges, (iii) the Exchange Offer
Registration Statement is not declared effective within 180 days of the Issue
Date or (iv) upon the request of the Initial Purchaser with respect to any
Registrable Securities held by it, if the Initial Purchaser is not permitted, in
the reasonable opinion of Thacher Proffitt & Wood, pursuant to applicable law or
applicable interpretations of the staff of the SEC, to participate in the
Exchange Offer and thereby receive securities that are freely tradeable without
restriction under the Securities Act and applicable blue sky or state securities
laws (any of the events specified in (i), (ii), (iii) or (iv) being a "SHELF
REGISTRATION EVENT," and the date of occurrence thereof, the "SHELF REGISTRATION
EVENT DATE"), then in addition to or in lieu of conducting the Exchange Offer
contemplated by Section 2(a), as the case may be, the Company and the Trust
shall, at their cost, use their best efforts to cause to be filed as promptly as
practicable after such Shelf Registration Event Date, as the case may be, and,
in any event, within 45 days after such Shelf Registration Event Date (provided
that in no event shall such filing date be required to be earlier than 75 days
after the Issue Date), a Shelf Registration Statement providing for the sale by
the Holders of all of the Registrable Securities, and shall use their best
efforts to have such Shelf Registration Statement declared effective by the SEC
as soon as practicable. No Holder of Registrable Securities shall be entitled to
include any of its Registrable Securities in any Shelf Registration pursuant to
this Agreement unless and until such Holder agrees in writing to be bound by all
of the provisions of this Agreement applicable to such Holder and furnishes to
the Company and the Trust in writing, within 15 days after receipt of a request
therefor, such information as the Company and the Trust may, after conferring
with counsel with regard to information relating to Holders that would be
required by the SEC to be included in such Shelf Registration Statement or
Prospectus included therein, reasonably request for inclusion in any Shelf
Registration Statement or Prospectus included therein. Each Holder as to which
any Shelf Registration is being effected agrees to furnish to the Company and
the Trust all information with respect to such Holder necessary to make the
information previously furnished to the Company by such Holder not materially
misleading.

         The Company and the Trust agree to use their best efforts to keep the
Shelf Registration Statement continuously effective and usable for resales for
(a) the Rule 144(k) Period in the case of a Shelf Registration Statement filed
pursuant to Section 2(b)(i), (ii) or (iii) or (b) 180

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days in the case of a Shelf Registration Statement filed pursuant to Section
2(b)(iv) (subject in each case to extension pursuant to the last paragraph of
Section 3 hereof), or for such shorter period which will terminate when all of
the Securities covered by the Shelf Registration Statement have been sold
pursuant to the Shelf Registration Statement or cease to be Registrable
Securities (the "EFFECTIVENESS PERIOD"). The Company and the Trust shall not
permit any securities other than Registrable Securities to be included in the
Shelf Registration. The Company and the Trust will, in the event a Shelf
Registration Statement is declared effective, provide to each Holder a
reasonable number of copies of the Prospectus which is a part of the Shelf
Registration Statement, notify each such Holder when the Shelf Registration has
become effective and take certain other actions as are required to permit
certain unrestricted resales of the Registrable Securities. The Company and the
Trust further agree, if necessary, to supplement or amend the Shelf Registration
Statement, if required by the rules, regulations or instructions applicable to
the registration form used by the Company for such Shelf Registration Statement
or by the Securities Act or by any other rules and regulations thereunder for
shelf registrations, and the Company and the Trust agree to furnish to the
Holders of Registrable Securities copies of any such supplement or amendment
promptly after its being used or filed with the SEC.

         (3) EXPENSES. The Company, as issuer of the Subordinated Debentures,
shall pay all Registration Expenses in connection with any Registration
Statement filed pursuant to Section 2(a) and/or 2(b) hereof and will reimburse
the Initial Purchaser for the reasonable fees and disbursements of Thacher
Proffitt & Wood, counsel for the Initial Purchaser, incurred in connection with
the Exchange Offer and, if applicable, the Private Exchange, and either Thacher
Proffitt & Wood or any other single counsel designated in writing by the
Majority Holders to act as counsel for the Holders of the Registrable Securities
in connection with a Shelf Registration Statement, which other counsel shall be
reasonably satisfactory to the Company. Except as provided herein, each Holder
shall pay all expenses of its counsel, underwriting discounts and commissions
and transfer taxes, if any, relating to the sale or disposition of such Holder's
Registrable Securities pursuant to the Shelf Registration Statement.

         (4) EFFECTIVE REGISTRATION STATEMENT. An Exchange Offer Registration
Statement pursuant to Section 2(a) hereof or a Shelf Registration Statement
pursuant to Section 2(b) hereof will not be deemed to have become effective
unless it has been declared effective by the SEC; PROVIDED, HOWEVER, that if,
after it has been declared effective, the offering of Registrable Securities
pursuant to such Exchange Offer Registration Statement or Shelf Registration
Statement is interfered with by any stop order, injunction or other order or
requirement of the SEC or any other governmental agency or court, such Exchange
Offer Registration Statement or Shelf Registration Statement will be deemed not
to have been effective during the period of such interference, until the
offering of Registrable Securities pursuant to such Registration Statement may
legally resume. The Company and the Trust will be deemed not to have used their
best efforts to cause the Exchange Offer Registration Statement or the Shelf
Registration Statement, as the case may be, to become, or to remain, effective
during the requisite period if either of them voluntarily takes any action that
would result in any such Registration Statement not being declared effective or
that would result in the Holders of Registrable Securities covered thereby not
being able to exchange or offer and sell such Registrable Securities during that
period, unless such action is required by applicable law.

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         (5) LIQUIDATED DAMAGES AND ADDITIONAL DISTRIBUTIONS. In the event that:

     (1)  neither the Exchange Offer Registration Statement is filed with the
SEC on or prior to the 150th day after the Issue Date nor a Shelf Registration
Statement is filed with the SEC on or prior to the 45th day after the Shelf
Registration Event Date in respect of a Shelf Registration Event attributable to
any of the events set forth in Sections 2(b)(i), (ii) and (iii) (provided that
in no event shall such filing date be required to be earlier than 75 days after
the Issue Date), then commencing on the day after the applicable required filing
date, liquidated damages ("LIQUIDATED DAMAGES") shall accrue on the principal
amount of the Subordinated Debentures, and additional distributions ("ADDITIONAL
DISTRIBUTIONS") shall accumulate on the liquidation amount of the Trust
Securities (as such term is defined in the Declaration), each at a rate of 25
basis points per annum; or

     (2)  neither the Exchange Offer Registration Statement is declared
effective by the SEC on or prior to the 180th day after the Issue Date nor a
Shelf Registration Statement is declared effective by the SEC on or prior to the
later of (A) the 40th day after the date such Shelf Registration Statement was
required to be filed and (B) the 180th day after the Issue Date, in respect of a
Shelf Registration Event attributable to any of the events set forth in Sections
2(b)(i), (ii) and (iii), then, commencing on the day after the applicable
required effectiveness date, Liquidated Damages shall accrue on the principal
amount of the Subordinated Debentures, and Additional Distributions shall
accumulate on the liquidation amount of the Trust Securities, each at a rate of
25 basis points per annum; or

     (3)  (A) the Trust has not exchanged Exchange Capital Securities for all
Capital Securities or the Company has not exchanged Exchange Debentures for all
Subordinated Debentures, in each case validly tendered during the Exchange
Period, or executed the Exchange Capital Securities Guarantee in respect of the
Exchange Capital Securities, in accordance with the terms of the Exchange Offer
on or prior to the 45th day after the date on which the Exchange Offer
Registration Statement was declared effective or (B) if applicable, the Shelf
Registration Statement in respect of a Shelf Registration Event attributable to
any of the events set forth in Sections 2(b)(i), (ii) and (iii) has been
declared effective and such Shelf Registration Statement ceases to be effective
or usable for resales (whether as a result of an event contemplated by Section
3(e) or otherwise) at any time prior to the expiration of the Rule 144(k) Period
(other than after such time as all Securities have been disposed of thereunder
or otherwise cease to be Registered Securities), then Liquidated Damages shall
accrue on the principal amount of Subordinated Debentures, and Additional
Distributions shall accumulate on the liquidation amount of the Trust
Securities, each at a rate of 25 basis points per annum commencing on (x) the
46th day after such effective date, in the case of (A) above, or (y) the day
such Shelf Registration Statement ceases to be effective or usable for resales,
in the case of (B) above;

PROVIDED, HOWEVER, that neither the Liquidated Damages rate on the Subordinated
Debentures, nor the Additional Distribution rate on the liquidation amount of
the Trust Securities, may exceed in the aggregate 25 basis points per annum;
PROVIDED, FURTHER, HOWEVER, that (1) upon the filing of the Exchange Offer
Registration Statement or a Shelf Registration Statement (in the case of clause
(i) above), (2) upon the effectiveness of the Exchange Offer Registration
Statement or a Shelf Registration Statement (in the case of clause (ii) above)
or (3) upon the exchange of Exchange Capital Securities and Exchange Debentures
for all Capital Securities and Subordinated Debentures

                                       10
<PAGE>   12

validly tendered and execution of the Exchange Capital Securities Guarantee (in
the case of clause (iii)(A) above) or at such time as the Shelf Registration
Statement that had ceased to remain effective or usable for resales again
becomes effective and usable for resales (in the case of clause (iii)(B) above),
Liquidated Damages on the principal amount of the Subordinated Debentures and
Additional Distributions on the liquidation amount of the Trust Securities as a
result of such clause (or the relevant subclause thereof) shall cease to accrue
and accumulate, as the case may be.

         Any amounts of Liquidated Damages and Additional Distributions due
pursuant to Section 2(e)(i), (ii) or (iii) above will be payable in cash on the
next succeeding March 31 and September 30, as the case may be, to Holders on the
relevant record dates for the payment of interest and distributions pursuant to
the Indenture and the Declaration, respectively.

         (6) SPECIFIC ENFORCEMENT. Without limiting the remedies available to
the Holders, the Company and the Trust acknowledge that any failure by the
Company or the Trust to comply with its obligations under Section 2(a) and
Section 2(b) hereof may result in material irreparable injury to the Holders for
which there is no adequate remedy at law, that it would not be possible to
measure damages for such injuries precisely and that, in the event of any such
failure, any Holder may obtain such relief as may be required to specifically
enforce the Company's and the Trust's obligations under Section 2(a) and Section
2(b) hereof.

         (7) DISTRIBUTION OF SUBORDINATED DEBENTURES. Notwithstanding any other
provisions of this Agreement, in the event that Subordinated Debentures are
distributed to holders of Capital Securities in liquidation of the Trust
pursuant to the Declaration, (i) all references in this Section 2 and in Section
3 to Securities, Registrable Securities and Exchange Securities shall not
include the Capital Securities and Capital Securities Guarantee or the Exchange
Capital Securities and Exchange Capital Securities Guarantee issued or to be
issued in exchange therefor in the Exchange Offer and (ii) all requirements for
any action to be taken by the Trust in this Section 2 and in Section 3 shall
cease to apply and all requirements for any action to be taken by the Company in
this Section 2 and in Section 3 shall apply to the Subordinated Debentures and
Exchange Debentures issued or to be issued in exchange therefor in the Exchange
Offer.

         3. REGISTRATION PROCEDURES. In connection with the obligations of the
Company and the Trust with respect to the Registration Statements pursuant to
Sections 2(a) and 2(b) hereof, the Company and the Trust shall use their best
efforts to:

         (1) prepare and file with the SEC a Registration Statement or
Registration Statements as prescribed by Sections 2(a) and 2(b) hereof within
the relevant time period specified in Section 2 hereof on the appropriate form
under the Securities Act, which form (i) shall be selected by the Company and
the Trust, (ii) shall, in the case of a Shelf Registration, be available for the
sale of the Registrable Securities by the selling Holders thereof and, in the
case of an Exchange Offer, be available for the exchange of Registrable
Securities and (iii) shall comply as to form in all material respects with the
requirements of the applicable form and include all financial statements
required by the SEC to be filed therewith; and use their best efforts to cause
such Registration Statement to become effective and remain effective (and, in
the case of a Shelf Registration Statement, usable for resales) in accordance
with Section 2 hereof; PROVIDED, HOWEVER, that if (1) such filing is pursuant to
Section 2(b), or (2) a Prospectus contained in an Exchange Offer

                                       11
<PAGE>   13

Registration Statement filed pursuant to Section 2(a) is required to be
delivered under the Securities Act by any Participating Broker-Dealer who seeks
to sell Exchange Securities, before filing any Registration Statement or
Prospectus or any amendments or supplements thereto, the Company and the Trust
shall furnish to and afford the Holders of the Registrable Securities and each
such Participating Broker-Dealer, as the case may be, covered by such
Registration Statement, their counsel and the managing underwriters, if any, a
reasonable opportunity (not to exceed seven Business Days) to review copies of
all such documents (including copies of any documents to be incorporated by
reference therein and all exhibits thereto) proposed to be filed. The Company
and the Trust shall not file any Registration Statement or Prospectus or any
amendments or supplements thereto in respect of which the Holders must be
afforded an opportunity to review prior to the filing of such document if the
Majority Holders or such Participating Broker-Dealer, as the case may be, their
counsel or the managing underwriters, if any, shall reasonably object in a
timely manner;

         (2) prepare and file with the SEC such amendments and post-effective
amendments to each Registration Statement as may be necessary to keep such
Registration Statement effective for the Effectiveness Period or the Applicable
Period, as the case may be; and cause each Prospectus to be supplemented, if so
determined by the Company or the Trust or requested by the SEC, by any required
prospectus supplement and as so supplemented to be filed pursuant to Rule 424
(or any similar provision then in force) under the Securities Act, and comply
with the provisions of the Securities Act, the Exchange Act and the rules and
regulations promulgated thereunder applicable to it with respect to the
disposition of all securities covered by each Registration Statement during the
Effectiveness Period or the Applicable Period, as the case may be, in accordance
with the intended method or methods of distribution by the selling Holders
thereof described in this Agreement (including sales by any Participating
Broker-Dealer);

         (3) in the case of a Shelf Registration, (i) notify each Holder of
Registrable Securities included in the Shelf Registration Statement, at least
three Business Days prior to filing, that a Shelf Registration Statement with
respect to the Registrable Securities is being filed and advising such Holder
that the distribution of Registrable Securities will be made in accordance with
the method selected by the Majority Holders; and (ii) furnish to each Holder of
Registrable Securities included in the Shelf Registration Statement and to each
underwriter of an underwritten offering of Registrable Securities, if any,
without charge, as many copies of each Prospectus, including each preliminary
Prospectus, and any amendment or supplement thereto, and such other documents as
such Holder or underwriter may reasonably request, in order to facilitate the
public sale or other disposition of the Registrable Securities; and (iii)
consent to the use of the Prospectus or any amendment or supplement thereto by
each of the selling Holders of Registrable Securities included in the Shelf
Registration Statement in connection with the offering and sale of the
Registrable Securities covered by the Prospectus or any amendment or supplement
thereto;

         (4) in the case of a Shelf Registration, register or qualify the
Registrable Securities under all applicable state securities or "blue sky" laws
of such jurisdictions by the time the applicable Registration Statement is
declared effective by the SEC as any Holder of Registrable Securities covered by
a Registration Statement and each underwriter of an underwritten offering of
Registrable Securities shall reasonably request in writing in advance of such
date of effectiveness, and do any and all other acts and things which may be
reasonably necessary or advisable to enable such Holder and underwriter to
consummate the disposition in each such jurisdiction of such

                                       12
<PAGE>   14

Registrable Securities owned by such Holder; PROVIDED, HOWEVER, that the Company
and the Trust shall not be required to (i) qualify as a foreign corporation or
as a dealer in securities in any jurisdiction where it would not otherwise be
required to qualify but for this Section 3(d), (ii) file any general consent to
service of process in any jurisdiction where it would not otherwise be subject
to such service of process or (iii) subject itself to taxation in any such
jurisdiction if it is not then so subject;

         (5) (1) in the case of a Shelf Registration or (2) if Participating
Broker-Dealers from whom the Company or the Trust has received prior written
notice that they will be utilizing the Prospectus contained in the Exchange
Offer Registration Statement as provided in Section 3(u) hereof, are seeking to
sell Exchange Securities and are required to deliver Prospectuses, promptly
notify each Holder of Registrable Securities, or such Participating
Broker-Dealers, as the case may be, their counsel and the managing underwriters,
if any, and promptly confirm such notice in writing (i) when a Registration
Statement has become effective and when any post-effective amendments thereto
become effective, (ii) of any request by the SEC or any state securities
authority for amendments and supplements to a Registration Statement or
Prospectus or for additional information after the Registration Statement has
become effective, (iii) of the issuance by the SEC or any state securities
authority of any stop order suspending the effectiveness of a Registration
Statement or the qualification of the Registrable Securities or the Exchange
Securities to be offered or sold by any Participating Broker-Dealer in any
jurisdiction described in paragraph 3(d) hereof or the initiation of any
proceedings for that purpose, (iv) in the case of a Shelf Registration, if,
between the effective date of a Registration Statement and the closing of any
sale of Registrable Securities covered thereby, the representations and
warranties of the Company and the Trust contained in any purchase agreement,
securities sales agreement or other similar agreement cease to be true and
correct in all material respects, (v) of the happening of any event or the
failure of any event to occur or the discovery of any facts, during the
Effectiveness Period, which makes any statement made in such Registration
Statement or the related Prospectus untrue in any material respect or which
causes such Registration Statement or Prospectus to omit to state a material
fact necessary in order to make the statements therein, in the light of the
circumstances under which they were made, not misleading, and (vi) of the
reasonable determination of the Company and the Trust that a post-effective
amendment to the Registration Statement would be appropriate;

         (6) obtain the withdrawal of any order suspending the effectiveness of
a Registration Statement at the earliest possible moment;

         (7) in the case of a Shelf Registration, furnish to each Holder of
Registrable Securities included within the coverage of such Shelf Registration
Statement, without charge, at least one conformed copy of each Registration
Statement relating to such Shelf Registration and any post-effective amendment
thereto (without documents incorporated therein by reference or exhibits
thereto, unless requested);

         (8) in the case of a Shelf Registration, cooperate with the selling
Holders of Registrable Securities to facilitate the timely preparation and
delivery of certificates representing Registrable Securities to be sold and not
bearing any restrictive legends (other than with respect to restrictions
requiring minimum transfers in blocks having an aggregate principal or
liquidation amount, as the case may be, of $100,000 and multiples of $1,000 in
excess thereof) and in such

                                       13
<PAGE>   15

denominations (consistent with the provisions of the Indenture and the
Declaration) and registered in such names as the selling Holders or the
underwriters may reasonably request at least two Business Days prior to the
closing of any sale of Registrable Securities pursuant to such Shelf
Registration Statement;

         (9) in the case of a Shelf Registration or an Exchange Offer
Registration, promptly after the occurrence of any event specified in Section
3(e)(ii), 3(e)(iii), 3(e)(v) or 3(e)(vi) hereof, prepare a supplement or
post-effective amendment to such Registration Statement or the related
Prospectus or any document incorporated therein by reference or file any other
required document so that, as thereafter delivered to the purchasers of the
Registrable Securities, such Prospectus will not include any untrue statement of
a material fact or omit to state a material fact necessary to make the
statements therein, in the light of the circumstances under which they were
made, not misleading; and to notify each Holder to suspend use of the Prospectus
as promptly as practicable after the occurrence of such an event, and each
Holder hereby agrees to suspend use of the Prospectus until the Company has
amended or supplemented the Prospectus to correct such misstatement or omission;

         (10) in the case of a Shelf Registration, a reasonable time prior to
the filing of any document which is to be incorporated by reference into a
Registration Statement or a Prospectus after the initial filing of a
Registration Statement, provide a reasonable number of copies of such document
to the Holders; and make such of the representatives of the Company and the
Trust as shall be reasonably requested by the Holders of Registrable Securities
or the Initial Purchaser on behalf of such Holders available for discussion of
such document;

         (11) obtain a CUSIP number for all Exchange Capital Securities and the
Capital Securities (and, if the Trust has made a distribution of the
Subordinated Debentures to the Holders of the Capital Securities, the
Subordinated Debentures or the Exchange Debentures), as the case may be, not
later than the effective date of a Registration Statement, and provide the
applicable Trustee with certificates for the Exchange Securities or the
Registrable Securities, as the case may be, in a form eligible for deposit with
the Depositary;

         (12) cause the Indenture, the Declaration, the Capital Securities
Guarantee (in the case of a Shelf Registration) and the Exchange Capital
Securities Guarantee (in the case of an Exchange Offer Registration) to be
qualified under the TIA, in connection with the registration of the Exchange
Securities or Registrable Securities, as the case may be, and effect such
changes to such documents as may be required for them to be so qualified in
accordance with the terms of the TIA and execute, and cause the applicable
Trustee to execute, all documents as may be required to effect such changes, and
all other forms and documents required to be filed with the SEC to enable such
documents to be so qualified in a timely manner;

         (13) in the case of a Shelf Registration, enter into such agreements
(including underwriting agreements) as are customary in underwritten offerings
and take all such other appropriate actions in connection therewith as are
reasonably requested by the Holders of at least 25% in aggregate principal or
liquidation amount, as the case may be, of the Registrable Securities in order
to expedite or facilitate the registration or the disposition or the Registrable
Securities;

                                       14
<PAGE>   16

         (14) in the case of a Shelf Registration, whether or not an
underwriting agreement is entered into and whether or not the registration is an
underwritten registration, if requested by (x) the Initial Purchaser, in the
case where the Initial Purchaser holds Securities acquired by it as part of its
initial placement and (y) Holders of at least 25% in aggregate principal or
liquidation amount, as the case may be, of the Registrable Securities covered
thereby: (i) make such representations and warranties to Holders of such
Registrable Securities and the underwriters (if any), with respect to the
business of the Trust, the Company and the subsidiaries of the Company as then
conducted and the Registration Statement, Prospectus and documents, if any,
incorporated or deemed to be incorporated by reference therein, in each case, as
are customarily made by issuers to underwriters in underwritten offerings, and
confirm the same if and when requested; (ii) obtain opinions of counsel to the
Company and the Trust and updates thereof (which may be in the form of a
reliance letter) in form and substance reasonably satisfactory to the managing
underwriters (if any) and the Holders of a majority in aggregate principal or
liquidation amount, as the case may be, of the Registrable Securities being
sold, addressed to each selling Holder and the underwriters (if any) covering
the matters customarily covered in opinions requested in underwritten offerings
and such other matters as may be reasonably requested by such underwriters (it
being agreed that the matters to be covered by such opinion may be subject to
customary qualifications and exceptions); (iii) obtain "cold comfort" letters
and updates thereof in form and substance reasonably satisfactory to the
managing underwriters from the independent certified public accountants of the
Company and the Trust (and, if necessary, any other independent certified public
accountants of any business acquired by the Company and the Trust for which
financial statements and financial data are, or are required to be, included in
the Registration Statement), addressed to each of the underwriters, such letters
to be in customary form and covering matters of the type customarily covered in
"cold comfort" letters in connection with underwritten offerings and such other
matters as reasonably requested by such underwriters in accordance with
Statement on Auditing Standards No. 72; and (iv) if an underwriting agreement is
entered into, the same shall contain indemnification provisions and procedures
no less favorable than those set forth in Section 4 hereof (or such other
provisions and procedures acceptable to Holders of a majority in aggregate
principal or liquidation amount, as the case may be, of Registrable Securities
covered by such Registration Statement and the managing underwriters) customary
for such agreements with respect to all parties to be indemnified pursuant to
said Section (including, without limitation, such underwriters and selling
Holders); and in the case of an underwritten registration, the above
requirements shall be satisfied at each closing under the related underwriting
agreement or as and to the extent required thereunder;

         (15) if (1) a Shelf Registration is filed pursuant to Section 2(b) or
(2) a Prospectus contained in an Exchange Offer Registration Statement filed
pursuant to Section 2(a) is required to be delivered under the Securities Act by
any Participating Broker-Dealer who seeks to sell Exchange Securities during the
Applicable Period, make reasonably available for inspection by any selling
Holder of Registrable Securities or Participating Broker-Dealer, as applicable,
who certifies to the Company and the Trust that it has a current intention to
sell Registrable Securities pursuant to the Shelf Registration, any underwriter
participating in any such disposition of Registrable Securities, if any, and any
attorney, accountant or other agent retained by any such selling Holder,
Participating Broker-Dealer, as the case may be, or underwriter (collectively,
the "INSPECTORS"), at the offices where normally kept, during the Company's
normal business hours, all financial and other records, pertinent corporate
documents and properties of the Trust, the Company and its subsidiaries
(collectively, the "RECORDS") as shall be reasonably necessary to enable them to
exercise any

                                       15
<PAGE>   17

applicable due diligence responsibilities, and cause the officers, directors and
employees of the Trust, the Company and its subsidiaries to supply all relevant
information in each case reasonably requested by any such Inspector in
connection with such Registration Statement; records and information which the
Company and the Trust determine, in good faith, to be confidential and any
Records and information which it notifies the Inspectors are confidential shall
not be disclosed to any Inspector except where (i) the disclosure of such
Records or information is necessary to avoid or correct a material misstatement
or omission in such Registration Statement, (ii) the release of such Records or
information is ordered pursuant to a subpoena or other order from a court of
competent jurisdiction or is necessary in connection with any action, suit or
proceeding or (iii) such Records or information previously has been made
generally available to the public; each selling Holder of such Registrable
Securities and each such Participating Broker-Dealer will be required to agree
in writing that Records and information obtained by it as a result of such
inspections shall be deemed confidential and shall not be used by it as the
basis for any market transactions in the securities of the Trust or the Company
unless and until such is made generally available to the public through no fault
of an Inspector or a selling Holder; and each selling Holder of such Registrable
Securities and each such Participating Broker-Dealer will be required to further
agree in writing that it will, upon learning that disclosure of such Records or
information is sought in a court of competent jurisdiction, or in connection
with any action, suit or proceeding, give notice to the Company and allow the
Company at its expense to undertake appropriate action to prevent disclosure of
the Records and information deemed confidential;

         (16) comply with all applicable rules and regulations of the SEC so
long as any provision of this Agreement shall be applicable and make generally
available to its securityholders earning statements satisfying the provisions of
Section 11(a) of the Securities Act and Rule 158 thereunder (or any similar rule
promulgated under the Securities Act) no later than 45 days after the end of any
12-month period (or 90 days after the end of any 12-month period if such period
is a fiscal year) (i) commencing at the end of any fiscal quarter in which
Registrable Securities are sold to underwriters in a firm commitment or best
efforts underwritten offering and (ii) if not sold to underwriters in such an
offering, commencing on the first day of the first fiscal quarter of the Company
after the effective date of a Registration Statement, which statements shall
cover said 12-month periods, provided that the obligations under this paragraph
(p) shall be satisfied by the timely filing of quarterly and annual reports on
Forms 10-Q and 10-K under the Exchange Act;

         (17) upon consummation of an Exchange Offer or a Private Exchange, if
requested by a Trustee, obtain an opinion of counsel to the Company addressed to
the Trustee for the benefit of all Holders of Registrable Securities
participating in the Exchange Offer or the Private Exchange, as the case may be,
substantially to the effect that (i) each of the Company and the Trust, as the
case requires, has duly authorized, executed and delivered the Exchange
Securities and Private Exchange Securities, and (ii) each of the Exchange
Securities or the Private Exchange Securities, as the case may be, constitutes a
validly issued, fully paid and nonassessable undivided beneficial ownership
interest in the assets of the Trust (in the case of an Exchange Capital
Security) or a legal, valid and binding obligation of the Company, enforceable
against the Company, in accordance with its respective terms (in the case of an
Exchange Debenture and the Exchange Capital Securities Guarantee), as the case
may be (in each case, with customary exceptions);

                                       16
<PAGE>   18

         (18) if an Exchange Offer or a Private Exchange is to be consummated,
upon delivery of the Registrable Securities by Holders to the Company or the
Trust, as applicable (or to such other Person as directed by the Company or the
Trust, respectively), in exchange for the Exchange Securities or the Private
Exchange Securities, as the case may be, the Company or the Trust, as
applicable, shall mark, or cause to be marked, on such Registrable Securities
delivered by such Holders that such Registrable Securities are being canceled in
exchange for the Exchange Securities or the Private Exchange Securities, as the
case may be; it being understood that in no event shall such Registrable
Securities be marked as paid or otherwise satisfied;

         (19) cooperate with each seller of Registrable Securities covered by
any Registration Statement and each underwriter, if any, participating in the
disposition of such Registrable Securities and their respective counsel in
connection with any filings required to be made with the NASD;

         (20) take all other steps necessary to effect the registration of the
Registrable Securities covered by a Registration Statement contemplated hereby;

         (21) (A) in the case of the Exchange Offer Registration Statement (i)
include in the Exchange Offer Registration Statement a section entitled "Plan of
Distribution," which section shall be reasonably acceptable to the Initial
Purchaser or another representative of the Participating Broker-Dealers, and
which shall contain a summary statement of the positions taken or policies made
by the staff of the SEC with respect to the potential "underwriter" status of
any broker-dealer that holds Registrable Securities acquired for its own account
as a result of market-making activities or other trading activities (a
"PARTICIPATING BROKER-DEALER") and that will be the beneficial owner (as defined
in Rule 13d-3 under the Exchange Act) of Exchange Securities to be received by
such broker-dealer in the Exchange Offer, whether such positions or policies
have been publicly disseminated by the staff of the SEC or such positions or
policies, in the reasonable judgment of the Initial Purchaser or such other
representative, represent the prevailing views of the staff of the SEC,
including a statement that any such broker-dealer who receives Exchange
Securities for Registrable Securities pursuant to the Exchange Offer may be
deemed a statutory underwriter and must deliver a prospectus meeting the
requirements of the Securities Act in connection with any resale of such
Exchange Securities, (ii) furnish to each Participating Broker-Dealer who has
delivered to the Company the notice referred to in Section 3(e), without charge,
as many copies of each Prospectus included in the Exchange Offer Registration
Statement, including any preliminary Prospectus, and any amendment or supplement
thereto, as such Participating Broker-Dealer may reasonably request (each of the
Company and the Trust hereby consents to the use of the Prospectus forming part
of the Exchange Offer Registration Statement or any amendment or supplement
thereto by any Person subject to the prospectus delivery requirements of the
Securities Act, including all Participating Broker-Dealers, in connection with
the sale or transfer of the Exchange Securities covered by the Prospectus or any
amendment or supplement thereto), (iii) use their best efforts to keep the
Exchange Offer Registration Statement effective and to amend and supplement the
Prospectus contained therein in order to permit such Prospectus to be lawfully
delivered by all Persons subject to the prospectus delivery requirements of the
Securities Act for such period of time as such Persons must comply with such
requirements under the Securities Act and applicable rules and regulations in
order to resell the Exchange Securities; PROVIDED, HOWEVER, that such period
shall not be required to exceed 90 days (or such longer period if extended
pursuant to the last sentence of Section 3 hereof) (the

                                       17
<PAGE>   19

"APPLICABLE PERIOD"), and (iv) include in the transmittal letter or similar
documentation to be executed by an exchange offeree in order to participate in
the Exchange Offer (x) the following provision:

          "If the exchange offeree is a broker-dealer holding
           Registrable Securities acquired for its own account
           as a result of market-making activities or other
           trading activities, it will deliver a prospectus
           meeting the requirements of the Securities Act in
           connection with any resale of Exchange Securities
           received in respect of such Registrable Securities
           pursuant to the Exchange Offer";

and (y) a statement to the effect that by a broker-dealer making the
acknowledgment described in clause (x) and by delivering a Prospectus in
connection with the exchange of Registrable Securities, the broker-dealer will
not be deemed to admit that it is an underwriter within the meaning of the
Securities Act; and (B) in the case of any Exchange Offer Registration
Statement, the Company and the Trust agree to deliver to the Initial Purchaser
or to another representative of the Participating Broker-Dealers, if requested
by the Initial Purchaser or such other representative of Participating
Broker-Dealers, on behalf of the Participating Broker-Dealers upon consummation
of the Exchange Offer (i) an opinion of counsel in form and substance reasonably
satisfactory to the Initial Purchaser or such other representative of the
Participating Broker-Dealers, covering the matters customarily covered in
opinions requested in connection with Exchange Offer Registration Statements and
such other matters as may be reasonably requested (it being agreed that the
matters to be covered by such opinion may be subject to customary qualifications
and exceptions), (ii) an officers' certificate containing certifications
substantially similar to those set forth in Section 5(g) of the Purchase
Agreement and such additional certifications as are customarily delivered in a
public offering of debt securities and (iii) as well as upon the effectiveness
of the Exchange Offer Registration Statement, a comfort letter, in each case, in
customary form if permitted by Statement on Auditing Standards No. 72.

         The Company or the Trust may require each seller of Registrable
Securities as to which any registration is being effected to furnish to the
Company or the Trust, as applicable, such information regarding such seller as
may be required by the staff of the SEC to be included in a Registration
Statement. The Company or the Trust may exclude from such registration the
Registrable Securities of any seller who unreasonably fails to furnish such
information within a reasonable time after receiving such request. The Company
shall have no obligation to register under the Securities Act the Registrable
Securities of a seller who so fails to furnish such information.

         In the case of a Shelf Registration Statement, or if Participating
Broker-Dealers who have notified the Company and the Trust that they will be
utilizing the Prospectus contained in the Exchange Offer Registration Statement
as provided in this Section 3(u) hereof, are seeking to sell Exchange Securities
and are required to deliver Prospectuses, each Holder agrees that, upon receipt
of any notice from the Company or the Trust of the occurrence of any event
specified in Section 3(e)(ii), 3(e)(iii), 3(e)(v) or 3(e)(vi) hereof, such
Holder will forthwith discontinue disposition of Registrable Securities pursuant
to a Registration Statement until such Holder's receipt of the copies of the
supplemented or amended Prospectus contemplated by Section 3(i) hereof or until
it is advised in writing (the "ADVICE") by the Company and the Trust that the
use of the applicable Prospectus may

                                       18
<PAGE>   20

be resumed, and, if so directed by the Company and the Trust, such Holder will
deliver to the Company or the Trust (at the Company's or the Trust's expense, as
the case requires) all copies in such Holder's possession, other than permanent
file copies then in such Holder's possession, of the Prospectus covering such
Registrable Securities or Exchange Securities, as the case may be, current at
the time of receipt of such notice. If the Company or the Trust shall give any
such notice to suspend the disposition of Registrable Securities or Exchange
Securities, as the case may be, pursuant to a Registration Statement, the
Company and the Trust shall use their best efforts to file and have declared
effective (if an amendment) as soon as practicable after the resolution of the
related matters an amendment or supplement to the Registration Statement and
shall extend the period during which such Registration Statement is required to
be maintained effective and usable for resales pursuant to this Agreement by the
number of days in the period from and including the date of the giving of such
notice to and including the date when the Company and the Trust shall have made
available to the Holders (x) copies of the supplemented or amended Prospectus
necessary to resume such dispositions or (y) the Advice.

         4. INDEMNIFICATION AND CONTRIBUTION. (a) In connection with any
Registration Statement, the Company and the Trust shall, jointly and severally,
indemnify and hold harmless the Initial Purchaser, each Holder, each underwriter
who participates in an offering of the Registrable Securities, each
Participating Broker-Dealer, each Person, if any, who controls any of such
parties within the meaning of Section 15 of the Securities Act or Section 20 of
the Exchange Act and each of their respective partners, directors, officers,
employees and agents as follows:

     (1) against any and all loss, liability, claim, damage and expense
whatsoever, as incurred, arising out of any untrue statement or alleged untrue
statement of a material fact contained in any Registration Statement (or any
amendment or supplement thereto), covering Registrable Securities or Exchange
Securities, as applicable, or the omission or alleged omission therefrom of a
material fact required to be stated therein or necessary to make the statements
therein, in the light of the circumstances under which they were made, not
misleading;

     (2) against any and all loss, liability, claim, damage and expense
whatsoever, as incurred, to the extent of the aggregate amount paid in
settlement of any litigation, or any investigation or proceeding by any
governmental agency or body, commenced or threatened, or of any claim whatsoever
based upon any such untrue statement or omission, or any such alleged untrue
statement or omission in the Registration Statement; provided that (subject to
Section 4(d) hereof) any such settlement is effected with the prior written
consent of the Company and the Trust; and

     (3) against any and all expenses whatsoever, as incurred (including the
fees and disbursements of counsel, except to the extent otherwise expressly
provided in Section 4(c) hereof), reasonably incurred in investigating,
preparing or defending against any litigation, or any investigation or
proceeding by any governmental agency or body, commenced or threatened, or any
claim whatsoever based upon any such untrue statement or omission, or any such
alleged untrue statement or omission, to the extent that any such expense is not
paid under subparagraph (i) or (ii) of this Section 4(a);

PROVIDED, HOWEVER, that this indemnity does not apply to any loss, liability,
claim, damage or expense to the extent arising out of an untrue statement or
omission

                                       19
<PAGE>   21

or alleged untrue statement or omission made in reliance upon and in conformity
with written information furnished in writing to the Company or the Trust by the
Initial Purchaser or such Holder, underwriter or Participating Broker-Dealer for
use in a Registration Statement (or any amendment thereto) or any Prospectus (or
any amendment or supplement thereto).

     (2) The Initial Purchaser and each Holder, underwriter or Participating
Broker-Dealer agrees, severally and not jointly, to indemnify and hold harmless
the Company, its directors and officers (including each officer of the Company
and the Trust who signed the Registration Statement), the Trust, each of the
Trustees and each Person, if any, who controls the Company within the meaning of
Section 15 of the Securities Act or Section 20 of the Exchange Act against any
and all loss, liability, claim, damage and expense whatsoever described in the
indemnity contained in Section 4(a) hereof, as incurred, but only with respect
to untrue statements or omissions, or alleged untrue statements or omissions,
made in a Registration Statement (or any amendment thereto) or any Prospectus
(or any amendment or supplement thereto) in reliance upon and in conformity with
written information furnished to the Company or the Trust by such Holder,
underwriter or Participating Broker-Dealer, as the case maybe, expressly for use
in such Registration Statement (or any amendment thereto), or any such
Prospectus (or any amendment or supplement thereto); PROVIDED, HOWEVER, that in
the case of a Shelf Registration Statement, no such Holder shall be liable for
any claims hereunder in excess of the amount of net proceeds received by such
Holder from the sale of Registrable Securities pursuant to such Shelf
Registration Statement.

     (3) Each indemnified party shall give notice as promptly as reasonably
practicable to each indemnifying party of any action commenced against it in
respect of which indemnity may be sought hereunder, but failure to so notify an
indemnifying party shall not relieve such indemnifying party from any liability
which it may have under this Section 4 to the extent that it is not materially
prejudiced by such failure as a result thereof, and in any event shall not
relieve it from liability which it may have otherwise on account of this
indemnity agreement. In the case of parties indemnified pursuant to Section 4(a)
or (b) above, counsel to the indemnified parties shall be selected by such
parties. An indemnifying party may participate at its own expense in the defense
of such action; PROVIDED, HOWEVER, that counsel to the indemnifying party shall
not (except with the consent of the indemnified party) also be counsel to the
indemnified party. In no event shall the indemnifying parties be liable for the
fees and expenses of more than one counsel (in addition to local counsel),
separate from their own counsel, for all indemnified parties in connection with
any one action or separate but similar or related actions in the same
jurisdiction arising out of the same general allegations or circumstances. No
indemnifying party shall, without the prior written consent of the indemnified
parties, settle or compromise or consent to the entry of any judgment with
respect to any litigation, or any investigation or proceeding by any
governmental agency or body, commenced or threatened, or any claim whatsoever in
respect of which indemnification or contribution could be sought under this
Section 4 (whether or not the indemnified parties are actual or potential
parties thereto), unless such settlement, compromise or consent (i) includes an
unconditional written release of each indemnified party from all liability
arising out of such litigation, investigation, proceeding or claim and (ii) does
not include a statement as to or an admission of fault, culpability or a failure
to act by or on behalf of any indemnified party.

     (4) If at any time an indemnified party shall have validly requested an
indemnifying party to reimburse the indemnified party for reasonable fees and
expenses of counsel

                                       20
<PAGE>   22

pursuant to Section 4(a), such indemnifying party agrees that it shall be liable
for any settlement of the nature contemplated by Section 4(a)(ii) effected
without its written consent if (i) such settlement is entered into more than 45
days after receipt by such indemnifying party of the aforesaid request, (ii)
such indemnifying party shall have received notice of the terms of such
settlement at least 30 days prior to such settlement being entered into and
(iii) such indemnifying party shall not have reimbursed such indemnified party
in accordance with such request prior to the date of such settlement.

     (5) In order to provide for just and equitable contribution in
circumstances under which any of the indemnity provisions set forth in this
Section 4 is for any reason held to be unenforceable by an indemnified party
although applicable in accordance with its terms, the Company, the Trust and the
Holders shall contribute to the aggregate losses, liabilities, claims, damages
and expenses of the nature contemplated by such indemnity agreement incurred by
the Company, the Trust and the Holders, as incurred; PROVIDED, HOWEVER, that no
Person guilty of fraudulent misrepresentation (within the meaning of Section
11(f) of the 1933 Act) shall be entitled to contribution from any Person that
was not guilty of such fraudulent misrepresentation. As between the Company, the
Trust, and the Holders, such parties shall contribute to such aggregate losses,
liabilities, claims, damages and expenses of the nature contemplated by such
indemnity agreement in such proportion as shall be appropriate to reflect the
relative fault of the Company and Trust, on the one hand, and the Holders, on
the other hand, with respect to the statements or omissions which resulted in
such loss, liability, claim, damage or expense, or action in respect thereof, as
well as any other relevant equitable considerations. The relative fault of the
Company and the Trust, on the one hand, and of the Holders, on the other hand,
shall be determined by reference to, among other things, whether the untrue or
alleged untrue statement of a material fact or the omission or alleged omission
to state a material fact relates to information supplied by the Company or the
Trust, on the one hand, or by or on behalf of the Holders, on the other, and the
parties' relative intent, knowledge, access to information and opportunity to
correct or prevent such statement or omission. The Company, the Trust and the
Holders of the Registrable Securities agree that it would not be just and
equitable if contribution pursuant to this Section 4 were to be determined by
pro rata allocation or by any other method of allocation that does not take into
account the relevant equitable considerations. For purposes of this Section 4,
each Affiliate of a Holder, and each partner, director, officer, employee and
Person, if any, who controls a Holder or such Affiliate within the meaning of
Section 15 of the Securities Act or Section 20 of the Exchange Act shall have
the same rights to contribution as such Holder, and each director of the
Company, each Trustee of the Trust and each Person, if any, who controls the
Company within the meaning of Section 15 of the Securities Act or Section 20 of
the Exchange Act shall have the same rights to contribution as each of the
Company or the Trust.

     5. PARTICIPATION IN AN UNDERWRITTEN REGISTRATION. No Holder may participate
in an underwritten registration hereunder unless such Holder (a) agrees to sell
such Holder's Registrable Securities on the basis provided in the underwriting
arrangement approved by the Persons entitled hereunder to approve such
arrangements and (b) completes and executes all reasonable questionnaires,
powers of attorney, indemnities, underwriting agreements, lock-up letters and
other documents reasonably required under the terms of such underwriting
arrangements.

     6. SELECTION OF UNDERWRITERS. The Holders of Registrable Securities
covered by the Shelf Registration Statement who desire to do so may sell the
Securities covered by such Shelf

                                       21
<PAGE>   23

Registration in an underwritten offering, subject to the provisions of Section
3(m) hereof. In any such underwritten offering, the underwriter or underwriters
and manager or managers that will administer the offering will be selected by
the Holders of a majority in aggregate principal or liquidation amount, as
applicable, of the Registrable Securities included in such offering; PROVIDED,
HOWEVER, that such underwriters and managers must be reasonably satisfactory to
the Company and the Trust.

         7.  MISCELLANEOUS.

         (1) RULE 144 AND RULE 144A. For so long as the Company is subject to
the reporting requirements of Section 13 or 15 of the Exchange Act and any
Registrable Securities remain outstanding, the Company will file the reports
required to be filed by it under the Securities Act and Section 13(a) or 15(d)
of the Exchange Act and the rules and regulations adopted by the SEC thereunder;
PROVIDED, HOWEVER, that if the Company ceases to be so required to file such
reports, it will, upon the request of any Holder of Registrable Securities (a)
make publicly available such information as is necessary to permit sales of its
securities pursuant to Rule 144 under the Securities Act, (b) deliver such
information to a prospective purchaser as is necessary to permit sales of its
securities pursuant to Rule 144A under the Securities Act and (c) take such
further action that is reasonable in the circumstances, in each case, to the
extent required from time to time to enable such Holder to sell its Registrable
Securities without registration under the Securities Act within the limitation
of the exemptions provided by (i) Rule 144 under the Securities Act, as such
rule may be amended from time to time, (ii) Rule 144A under the Securities Act,
as such rule may be amended from time to time, or (iii) any similar rules or
regulations hereafter adopted by the SEC. Upon the request of any Holder of
Registrable Securities, the Company will deliver to such Holder a written
statement as to whether it has complied with such requirements.

         (2) NO INCONSISTENT AGREEMENTS. Neither the Company nor the Trust has
entered into, nor will the Company or the Trust on or after the date of this
Agreement enter into, any agreement which is inconsistent with the rights
granted to the Holders of Registrable Securities in this Agreement or which
otherwise conflicts with the provisions hereof. The rights granted to the
Holders hereunder do not in any way conflict with and are not inconsistent with
the rights granted to the holders of the Company's or the Trust's other issued
and outstanding securities under any such agreements.

         (3) AMENDMENTS AND WAIVERS. The provisions of this Agreement, including
the provisions of this sentence, may not be amended, modified or supplemented,
and waivers or consents to departures from the provisions hereof may not be
given, unless the Company and the Trust have obtained the written consent of
Holders of at least a majority in aggregate principal or liquidation amount of
the outstanding Registrable Securities affected by such amendment, modification,
supplement, waiver or departure; PROVIDED that no amendment, modification or
supplement or waiver or consent to the departure with respect to the provisions
of Section 4 hereof shall be effective as against any Holder of Registrable
Securities unless consented to in writing by such Holder of Registrable
Securities. Notwithstanding the foregoing sentence, (i) this Agreement may be
amended, without the consent of any Holder of Registrable Securities, by written
agreement signed by the Company, the Trust and the Initial Purchaser, to cure
any ambiguity, correct or supplement any provision of this Agreement that may be
inconsistent with any other provision of this Agreement or to make any other
provisions with respect to matters or questions arising under this Agreement
which shall not be inconsistent with other provisions of this Agreement, (ii)
this Agreement may be

                                       22
<PAGE>   24

amended, modified or supplemented, and waivers and consents to departures from
the provisions hereof may be given, by written agreement signed by the Company,
the Trust and the Initial Purchaser to the extent that any such amendment,
modification, supplement, waiver or consent is, in their reasonable judgment,
necessary or appropriate to comply with applicable law (including any
interpretation of the Staff of the SEC) or any change therein and (iii) to the
extent any provision of this Agreement relates to the Initial Purchaser, such
provision may be amended, modified or supplemented, and waivers or consents to
departures from such provisions may be given, by written agreement signed by the
Initial Purchaser, the Company and the Trust. Each Holder of Registrable
Securities shall be bound by any amendment or waiver effected pursuant to this
Section 7(c), whether or not any notice, writing or marking indicating such
amendment or waiver appears on such security or is delivered to such Holder.

         (4) NOTICES. All notices and other communications provided for or
permitted hereunder shall be made in writing by hand-delivery, registered
first-class mail, telex, telecopier or any courier guaranteeing overnight
delivery (i) if to a Holder, at the most current address given by such Holder to
the Company or the Trust by means of a notice given in accordance with the
provisions of this Section 7(d), which address initially is, with respect to the
Initial Purchaser, the address set forth in the Purchase Agreement; and (ii) if
to the Company or the Trust, initially at the Company's address set forth in the
Purchase Agreement and thereafter at such other address, notice of which is
given in accordance with the provisions of this Section 7(d).

         All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; five Business
Days after being deposited in the mail, postage prepaid, if mailed; when
answered back, if telexed; when receipt is acknowledged, if telecopied; and on
the next Business Day, if timely delivered to an air courier guaranteeing
overnight delivery.

         Copies of all such notices, demands or other communications shall be
concurrently delivered by the Person giving the same to the Trustee, at the
address specified in the Indenture.

         (5) SUCCESSORS AND ASSIGNS. This Agreement shall inure to the benefit
of and be binding upon the successors, assigns and transferees of the Initial
Purchaser, including, without limitation and without the need for an express
assignment, subsequent Holders; PROVIDED, HOWEVER, that nothing herein shall be
deemed to permit any assignment, transfer or other disposition of Registrable
Securities in violation of the terms of the Purchase Agreement, the Declaration
or the Indenture. If any transferee of any Holder shall acquire Registrable
Securities, in any manner, whether by operation of law or otherwise, such
Registrable Securities shall be held subject to all of the terms of this
Agreement, and by taking and holding such Registrable Securities, such Person
shall be conclusively deemed to have agreed to be bound by and to perform all of
the terms and provisions of this Agreement and such Person shall be entitled to
receive the benefits hereof.

         (6) THIRD PARTY BENEFICIARIES. Each Holder and any Participating
Broker-Dealer shall be third party beneficiaries of the agreements made
hereunder among the Initial Purchaser, the Company and the Trust, and the
Initial Purchaser shall have the right to enforce such agreements directly to
the extent it deems such enforcement necessary or advisable to protect its
rights or the rights of Holders hereunder.

                                       23
<PAGE>   25

         (7) COUNTERPARTS. This Agreement may be executed in any number of
counterparts and by the parties hereto in separate counterparts, each of which
when so executed shall be deemed to be an original and all of which taken
together shall constitute one and the same agreement.

         (8) HEADINGS. The headings in this Agreement are for convenience of
reference only and shall not limit or otherwise affect the meaning hereof.

         (9) GOVERNING LAW. THIS AGREEMENT SHALL BE DEEMED TO HAVE BEEN MADE IN
THE STATE OF NEW YORK. THE VALIDITY AND INTERPRETATION OF THIS AGREEMENT, AND
THE TERMS AND CONDITIONS SET FORTH HEREIN, SHALL BE GOVERNED BY AND CONSTRUED IN
ACCORDANCE WITH THE LAWS OF THE STATE OF NEW YORK WITHOUT GIVING EFFECT TO ANY
PROVISIONS RELATING TO CONFLICTS OF LAWS. EACH OF THE PARTIES HERETO AGREES TO
SUBMIT TO THE EXCLUSIVE JURISDICTION OF THE COURTS OF THE STATE OF NEW YORK IN
ANY ACTION OR PROCEEDING ARISING OUT OF OR RELATING TO THIS AGREEMENT OR ANY OF
THE MATTERS CONTEMPLATED HEREBY, IRREVOCABLY WAIVES ANY DEFENSE OF LACK OF
PERSONAL JURISDICTION AND IRREVOCABLY AGREES THAT ALL CLAIMS IN RESPECT OF ANY
SUIT, ACTION OR PROCEEDING MAY BE HEARD AND DETERMINED IN ANY SUCH COURT. EACH
OF THE PARTIES HERETO IRREVOCABLY WAIVES, TO THE FULLEST EXTENT IT MAY
EFFECTIVELY DO SO UNDER APPLICABLE LAW, ANY OBJECTION WHICH IT MAY NOW OR
HEREAFTER HAVE TO THE LAYING OF VENUE OF SUCH SUIT, ACTION OR PROCEEDING BROUGHT
IN ANY SUCH COURT AND ANY CLAIM THAT ANY SUCH SUIT, ACTION OR PROCEEDING BROUGHT
IN ANY SUCH COURT HAS BEEN BROUGHT IN AN INCONVENIENT FORUM.

         (10) SEVERABILITY. In the event that any one or more of the provisions
contained herein, or the application thereof in any circumstance, is held
invalid, illegal or unenforceable, the validity, legality and enforceability of
any such provision in every other respect and of the remaining provisions
contained herein shall not be affected or impaired thereby.

         (11) SECURITIES HELD BY THE COMPANY, THE TRUST OR ITS AFFILIATES.
Whenever the consent or approval of Holders of a specified percentage of
Registrable Securities is required hereunder, Registrable Securities held by the
Company, the Trust or any Affiliates shall not be counted in determining whether
such consent or approval was given by the Holders of such required percentage.

                                       24
<PAGE>   26

         IN WITNESS WHEREOF, the parties have executed this Registration Rights
Agreement as of the date first written above.

                                   BANCFIRST OHIO CORP.

                                   By:
                                      -----------------------------------
                                      Name:
                                      Title:

                                   BFOH CAPITAL TRUST I

                                   By:  BANCFIRST OHIO CORP.,
                                        as Sponsor

                                   By:
                                      -----------------------------------
                                      Name:
                                      Title:

Confirmed and accepted as
of the date first above
written:

SANDLER O'NEILL & PARTNERS, L.P.

By:  SANDLER O'NEILL & PARTNERS CORP.,
     the sole general partner

By:
   ------------------------------------
   Catherine A. Lawton
   Vice President

                                       25<PAGE>   1

                                                                     Exhibit 4.7

                       =================================

                      COMMON SECURITIES GUARANTEE AGREEMENT

                              BANCFIRST OHIO CORP.

                          DATED AS OF OCTOBER 18, 1999

                       =================================

<PAGE>   2

                                TABLE OF CONTENTS
                                -----------------
                                                                         PAGE

                                    ARTICLE I

                         DEFINITIONS AND INTERPRETATION

SECTION 1.1.  Definitions and Interpretation ..............................3

                                   ARTICLE II

                                    GUARANTEE

SECTION 2.1.  Guarantee ...................................................4
SECTION 2.2.  Waiver of Notice and Demand .................................4
SECTION 2.3.  Obligations Not Affected ....................................4
SECTION 2.4.  Rights of Holders ...........................................5
SECTION 2.5.  Guarantee of Payment ........................................5
SECTION 2.6.  Subrogation .................................................5
SECTION 2.7.  Independent Obligations .....................................6

                                   ARTICLE III

                    LIMITATION OF TRANSACTIONS; SUBORDINATION

SECTION 3.1.  Limitation of Transactions ..................................6
SECTION 3.2.  Ranking .....................................................7

                                   ARTICLE IV

                                  TERMINATION

SECTION 4.1.  Termination .................................................7

                                    ARTICLE V

                                  MISCELLANEOUS

SECTION 5.1.  Successors and Assigns ......................................7
SECTION 5.2.  Amendments ..................................................8
SECTION 5.3.  Notices .....................................................8
SECTION 5.4.  Benefit .....................................................9
SECTION 5.5.  Governing Law ...............................................9

<PAGE>   3

                      COMMON SECURITIES GUARANTEE AGREEMENT

         This COMMON SECURITIES GUARANTEE AGREEMENT (the "Common Securities
Guarantee"), dated as of October 18, 1999, is executed and delivered by
BANCFIRST OHIO CORP., an Ohio corporation (the "Guarantor"), for the benefit of
the Holders (as defined herein) from time to time of the Common Securities (as
defined herein) of BFOH CAPITAL TRUST I, a Delaware business trust (the
"Issuer").

         WHEREAS, pursuant to an Amended and Restated Declaration of Trust (the
"Declaration"), dated as of October 18, 1999, by and among the Trustees of the
Issuer named therein, the Guarantor, as sponsor, and the holders from time to
time of undivided beneficial interests in the assets of the Issuer, the Issuer
is issuing on the date hereof 619 common securities having an aggregate
liquidation amount of Six Hundred Nineteen Thousand Dollars ($619,000), to meet
the capital requirements of the Trust; such common securities being designated
the 9.875% Common Securities (the "Common Securities").

         WHEREAS, as incentive for the Holders to purchase the Common
Securities, the Guarantor desires irrevocably and unconditionally to agree, to
the extent set forth in this Common Securities Guarantee, to pay the Guarantee
Payments (as defined herein) to the Holders of the Common Securities and to make
certain other payments on the terms and conditions set forth herein; and

         WHEREAS, the Guarantor is also executing and delivering the Series A
Capital Securities Guarantee Agreement, dated as of October 18, 1999 (the
"Series A Capital Securities Guarantee"), for the benefit of the holders of the
Series A Capital Securities (as defined in the Declaration) and upon
consummation of the Exchange Offer (as defined in the Declaration) will execute
and deliver the Series B Capital Securities Guarantee Agreement (the "Series B
Capital Securities Guarantee") for the benefit of the holders of the Series B
Capital Securities (as defined in the Declaration); it being understood that if
an Event of Default (as defined in the Declaration) has occurred and is
continuing, the rights of Holders of the Common Securities to receive Guarantee
Payments under this Common Securities Guarantee are subordinated, to the extent
and in the manner set forth herein, to the rights of holders of Capital
Securities (as defined in the Declaration) to receive Guarantee Payments under
the Series A Capital Securities Guarantee and the Series B Capital Securities
Guarantee, as the case may be.

         NOW, THEREFORE, in consideration of the purchase by each Holder of the
Common Securities, which purchase the Guarantor hereby acknowledges shall
benefit the Guarantor, the Guarantor executes and delivers this Common
Securities Guarantee for the benefit of the Holders.

                                       2
<PAGE>   4

                                    ARTICLE I
                         DEFINITIONS AND INTERPRETATION

SECTION 1.1  DEFINITIONS AND INTERPRETATION

         In this Common Securities Guarantee, unless the context otherwise
requires:

         (a) capitalized terms used in this Common Securities Guarantee but not
defined in the preamble above have the respective meanings assigned to them in
this Section 1.1;

         (b) terms defined in the Declaration as at the date of execution of
this Common Securities Guarantee have the same meaning when used in this Common
Securities Guarantee unless otherwise defined in this Common Securities
Guarantee;

         (c) a term defined anywhere in this Common Securities Guarantee has the
same meaning throughout;

         (d) all references to "the Common Securities Guarantee" or "this Common
Securities Guarantee" are references to this Common Securities Guarantee as
modified, supplemented or amended from time to time;

         (e) all references in this Common Securities Guarantee to Articles and
Sections are references to Articles and Sections of this Common Securities
Guarantee unless otherwise specified; and

         (f) a term defined in the Trust Indenture Act has the same meaning as
in the Trust Indenture Act unless otherwise defined in this Common Securities
Guarantee; and

         (g) a reference to the singular includes the plural and vice versa.

         "Guarantee Payments" means the following payments or distributions,
without duplication, with respect to the Common Securities, to the extent not
paid or made by or on behalf of the Issuer: (i) any accumulated and unpaid
Distributions (as defined in the Declaration) that are required to be paid on
such Common Securities, to the extent the Issuer has funds legally available
therefor at such time, (ii) the redemption price, including all accumulated and
unpaid Distributions to the date of redemption (the "Redemption Price"), to the
extent the Issuer has funds legally available therefor at such time, with
respect to any Common Securities called for redemption, and (iii) upon a
voluntary or involuntary dissolution, winding-up or liquidation of the Issuer
(other than in connection with the distribution of Debentures (as defined in the
Declaration) to the Holders in exchange for Common Securities or in connection
with the redemption of the Common Securities, in each case as provided in the
Declaration), the lesser of (a) the aggregate of the liquidation amount and all
accumulated and unpaid Distributions on the Common Securities to the date of
payment, to the extent the Issuer has funds legally available therefor at such
time, and (b) the amount of assets of the Issuer remaining available for
distribution to the Holders after satisfaction of liabilities to creditors of
the Issuer as required by applicable law (in either case, the "Liquidation
Distribution"). If an Event of Default under the Declaration, the Series A
Capital Securities Guarantee Agreement

                                       3
<PAGE>   5

or the Series B Capital Securities Guarantee Agreement has occurred and is
continuing, no Guarantee Payments with respect to the Common Securities shall be
made until holders of Capital Securities shall be paid in full the Guarantee
Payments to which they are entitled under the Series A Capital Securities
Guarantee and the Series B Capital Securities Guarantee, as the case may be.

         "Holder" means any holder, as registered on the books and records of
the Issuer, of any Common Securities.

         "Other Guarantees" means all guarantees, other than this Common
Securities Guarantee, to be issued by the Guarantor with respect to common
securities (if any) similar to the Common Securities issued by trusts other than
the Issuer to be established by the Guarantor (if any), in each case similar to
the Issuer.

                                   ARTICLE II
                                   GUARANTEE

SECTION 2.1  GUARANTEE

         The Guarantor irrevocably and unconditionally agrees to pay in full to
the Holders the Guarantee Payments (without duplication of amounts theretofore
paid by the Issuer), as and when due, regardless of any defense, right of
set-off or counterclaim which the Issuer may have or assert. The Guarantor's
obligation to make a Guarantee Payment may be satisfied by direct payment of the
required amounts by the Guarantor to the Holders or by causing the Issuer to pay
such amounts to the Holders.

SECTION 2.2  WAIVER OF NOTICE AND DEMAND

         The Guarantor hereby waives notice of acceptance of this Common
Securities Guarantee and of any liability to which it applies or may apply,
presentment, demand for payment, any right to require a proceeding first against
the Issuer or any other Person before proceeding against the Guarantor, protest,
notice of nonpayment, notice of dishonor, notice of redemption and all other
notices and demands.

SECTION 2.3  OBLIGATIONS NOT AFFECTED

         The obligations, covenants, agreements and duties of the Guarantor
under this Common Securities Guarantee shall in no way be affected or impaired
by reason of the happening from time to time of any of the following:

         (a) the release or waiver, by operation of law or otherwise, of the
performance or observance by the Issuer of any express or implied agreement,
covenant, term or condition relating to the Common Securities to be performed or
observed by the Issuer;

         (b) the extension of time for the payment by the Issuer of all or any
portion of the Distributions, Redemption Price, Liquidation Distribution or any
other sums payable under the terms

                                       4
<PAGE>   6

of the Common Securities or the extension of time for the performance of any
other obligation under, arising out of, or in connection with, the Common
Securities;

         (c) any failure, omission, delay or lack of diligence on the part of
the Holders to enforce, assert or exercise any right, privilege, power or remedy
conferred on the Holders pursuant to the terms of the Common Securities, or any
action on the part of the Issuer granting indulgence or extension of any kind;

         (d) the voluntary or involuntary liquidation, dissolution, sale of any
collateral, receivership, insolvency, bankruptcy, assignment for the benefit of
creditors, reorganization, arrangement, composition or readjustment of debt of,
or other similar proceedings affecting, the Issuer or any of the assets of the
Issuer;

         (e) any invalidity of, or defect or deficiency in, the Common
Securities;

         (f) the settlement or compromise of any obligation guaranteed hereby or
hereby incurred; or

         (g) any other circumstance whatsoever that might otherwise constitute a
legal or equitable discharge or defense of a guarantor;

it being the intent of this Section 2.3 that the obligations of the Guarantor
with respect to the Guarantee Payments shall be absolute and unconditional under
any and all circumstances.

         There shall be no obligation of the Holders to give notice to, or
obtain consent of, the Guarantor with respect to the happening of any of the
foregoing.

SECTION 2.4  RIGHTS OF HOLDERS

         The Guarantor expressly acknowledges that any Holder of the Common
Securities may institute a legal proceeding directly against the Guarantor to
enforce its rights under this Common Securities Guarantee, without first
instituting a legal proceeding against the Issuer or any other Person.

SECTION 2.5  GUARANTEE OF PAYMENT

         This Common Securities Guarantee creates a guarantee of payment and not
of collection.

SECTION 2.6  SUBROGATION

         The Guarantor shall be subrogated to all (if any) rights of the Holders
of the Common Securities against the Issuer in respect of any amounts paid to
such Holders by the Guarantor under this Common Securities Guarantee; PROVIDED,
HOWEVER, that the Guarantor shall not (except to the extent required by
mandatory provisions of law) be entitled to enforce or exercise any rights which
it may acquire by way of subrogation or any indemnity, reimbursement or other
agreement, in all

                                       5
<PAGE>   7

cases as a result of payment under this Common Securities Guarantee, if, at the
time of any such payment, any amounts are due and unpaid under this Common
Securities Guarantee. If any amount shall be paid to the Guarantor in violation
of the preceding sentence, the Guarantor agrees to hold such amount in trust for
the Holders and to pay over such amount to the Holders.

SECTION 2.7  INDEPENDENT OBLIGATIONS

         The Guarantor acknowledges that its obligations hereunder are
independent of the obligations of the Issuer with respect to the Common
Securities and that the Guarantor shall be liable as principal and as debtor
hereunder to make Guarantee Payments pursuant to the terms of this Common
Securities Guarantee notwithstanding the occurrence of any event referred to in
subsections (a) through (g), inclusive, of Section 2.3 hereof.

                                   ARTICLE III
                   LIMITATION OF TRANSACTIONS; SUBORDINATION

SECTION 3.1  LIMITATION OF TRANSACTIONS

         So long as any Common Securities remain outstanding, the Guarantor will
not (i) declare or pay any dividends or distribution on, or redeem, purchase,
acquire or make a liquidation payment with respect to any of the Guarantor's
capital stock, (ii) make any payment of principal of, or interest or premium, if
any, on or repay, repurchase or redeem any debt securities of the Guarantor
(including Other Debentures, as defined in the Indenture) that rank pari passu
with or junior in right of payment to the Debentures or (iii) make any guarantee
payments with respect to any guarantee by the Guarantor of the debt securities
of any subsidiary of the Guarantor (including Other Guarantees, as defined in
the Indenture) if such guarantee ranks pari passu with or junior in right of
payment to the Debentures (other than (a) dividends or distributions in shares
of, or options, warrants or rights to subscribe for or purchase shares of,
common stock of the Guarantor, (b) any declaration of a dividend in connection
with the implementation of a shareholders' rights plan, or the issuance of stock
under any such plan in the future, or the redemption or repurchase of any such
rights pursuant thereto, (c) payments under the Series A Capital Securities
Guarantee and the Series B Capital Securities Guarantee, (d) as a result of a
reclassification of the Guarantor's capital stock or the exchange or the
conversion of one class or series of the Guarantor's capital stock for another
class or series of the Guarantor's capital stock, (e) the purchase of fractional
interests in shares of the Guarantor's capital stock pursuant to the conversion
or exchange provisions of such capital stock or the security being converted or
exchanged, and (f) purchases of common stock related to the issuance of common
stock or rights under any of the Guarantor's benefit or compensation plans for
its directors, officers or employees or any of the Guarantor's dividend
reinvestment plans) if at such time (1) there shall have occurred any event of
which the Guarantor has actual knowledge that (A) is, or with the giving of
notice or the lapse of time, or both, would be, an Event of Default and (B) in
respect of which the Guarantor shall not have taken reasonable steps to cure,
(2) if such Debentures are held by the Property Trustee, the Guarantor shall be
in default with respect to its payment of any obligations under the Series A
Capital Securities Guarantee or the Series B Capital Securities Guarantee or (3)
the Guarantor shall have given notice of its election of the exercise of its
right to commence an Extended Interest Payment Period as provided in the
Indenture and shall

                                       6
<PAGE>   8

not have rescinded such notice, and such Extended Interest Payment Period, or an
extension thereof, shall have commenced and be continuing.

SECTION 3.2  RANKING

         This Common Securities Guarantee will constitute an unsecured
obligation of the Guarantor and will rank (i) subordinate and junior in right of
payment to the Senior Indebtedness (as defined in the Indenture), to the same
extent and in the same manner that the Debentures are subordinated to the Senior
Indebtedness pursuant to the Indenture, it being understood that the terms of
Article XV of the Indenture shall apply to the obligations of the Guarantor
under this Common Securities Guarantee as if such Article XV were set forth
herein in full, (ii) pari passu with the most senior preferred or preference
stock now or hereafter issued by the Guarantor and with any Other Guarantee and,
except as set forth herein or therein, the Series A Capital Securities
Guarantee, the Series B Capital Securities Guarantee and any guarantee now or
hereafter entered into by the Guarantor in respect of any preferred or
preference stock of any Affiliate of the Guarantor and (iii) senior to the
Guarantor's common stock.

                                   ARTICLE IV
                                  TERMINATION

SECTION 4.1  TERMINATION

         This Common Securities Guarantee shall terminate and be of no further
force or effect upon (i) full payment of the Redemption Price of all Common
Securities, (ii) the dissolution, winding-up or liquidation of the Issuer,
immediately following the full payment of the amounts payable in accordance with
the Declaration, or (iii) the distribution of all of the Debentures to the
Holders of the Trust Securities (as defined in the Declaration). Notwithstanding
the foregoing, this Common Securities Guarantee will continue to be effective or
will be reinstated, as the case may be, if at any time any Holder of the Common
Securities must restore payment of any sums paid under the Common Securities or
under this Common Securities Guarantee.

                                    ARTICLE V
                                  MISCELLANEOUS

SECTION 5.1  SUCCESSORS AND ASSIGNS

         All guarantees and agreements contained in this Common Securities
Guarantee shall bind the successors, assigns, receivers, trustees and
representatives of the Guarantor and shall inure to the benefit of the Holders
of the Common Securities then outstanding.

                                       7
<PAGE>   9

SECTION 5.2  AMENDMENTS

         Except with respect to any changes which do not adversely affect in any
material respect the rights of the Holders (in which case no consent of the
Holders will be required), this Common Securities Guarantee may only be amended
with the prior approval of the Holders of a majority in liquidation amount of
all the outstanding Common Securities. The provisions of Section 12.2 of the
Declaration with respect to meetings of Holders of the Trust Securities apply to
the giving of such approval.

SECTION 4.3  NOTICES

         All notices provided for in this Common Securities Guarantee shall be
in writing, duly signed by the party giving such notice, and shall be delivered,
telecopied or mailed by registered or certified mail, as follows:

         (a) if given to the Issuer, in care of the Administrative Trustee at
the Issuer's mailing address set forth below (or such other address as the
Issuer may give notice of to the Holders of the Common Securities):

                         BFOH CAPITAL TRUST I
                         c/o BancFirst Ohio Corp.
                         422 Main Street
                         Zanesville, Ohio  43701
                         Attention: Kim M. Taylor
                         Telephone: (740) 452-8444
                         Telecopier:   (740) 455-5705

         (b) if given to the Guarantor, at the Guarantor's mailing address set
forth below (or such other address as the Guarantor may give notice of to the
Holders of the Common Securities):

                         BANCFIRST OHIO CORP.
                         422 Main Street
                         Zanesville, Ohio  43701
                         Attention: Kim M. Taylor
                         Telephone: (740) 452-8444
                         Telecopier:   (740) 455-5705

         (c) if given to any Holder of the Common Securities, at the address set
forth on the books and records of the Issuer.

         All such notices shall be deemed to have been given when received in
person, telecopied with receipt confirmed, or mailed by first class mail,
postage prepaid except that if a notice or other document is refused delivery or
cannot be delivered because of a changed address of which no notice was given,
such notice or other document shall be deemed to have been delivered on the date
of such refusal or inability to deliver.

                                       8
<PAGE>   10

SECTION 5.4  BENEFIT

         This Common Securities Guarantee is solely for the benefit of the
Holders of the Common Securities and is not separately transferrable from the
Common Securities.

SECTION 5.5  GOVERNING LAW

         THIS COMMON SECURITIES GUARANTEE SHALL BE GOVERNED BY, AND CONSTRUED
AND INTERPRETED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK WITHOUT
REGARD TO CONFLICT OF LAW PRINCIPLES THEREOF.

         This Common Securities Guarantee is executed as of the day and year
first above written.

                                      BANCFIRST OHIO CORP.

                                      By:
                                         -------------------------------------
                                         Gary N. Fields
                                         President and Chief Executive Officer

                                       9

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