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                                                   EXHIBIT 2.2
                                                   -----------   
                      STOCK OPTION AGREEMENT
                      ----------------------

     This STOCK OPTION AGREEMENT ("Option Agreement") dated as of
the 12th day of September, 1997, by and between WESBANCO, INC., a
West Virginia corporation ("Wesbanco") and COMMERCIAL BANCSHARES,
INCORPORATED, a West Virginia corporation ("Commercial").

                           WITNESSETH:
                           -----------

     WHEREAS, the Boards of Directors of Wesbanco and Commercial
have approved a Binding Letter of Intent ("Agreement"), which
contemplates the merger of Commercial with and into CBI
Corporation, a West Virginia corporation and wholly-owned
subsidiary of Wesbanco ("CBI"), with CBI continuing as the
surviving corporation; subject to the execution of a definitive
merger agreement which the parties agree to negotiate in good
faith, and

     WHEREAS, as a condition to Wesbanco's entry into the
Agreement and to induce such entry, Commercial has agreed to
grant to Wesbanco the option set forth herein to purchase
authorized but unissued shares of common stock, par value $5.00
per share of Commercial ("Commercial Common Stock");

     NOW, THEREFORE, in consideration of the premises herein
contained, the parties agree as follows:

     1.   Definitions.  Capitalized terms which are to be defined
in the Merger Agreement and used herein shall have the same
meanings as in the Merger Agreement.  The parties have prepared a
draft of said Merger Agreement and incorporate the referenced
provisions of said draft language into this Agreement as if set
forth herein verbatim.  A copy of said draft Merger Agreement is
attached hereto as Exhibit A (hereinafter "Merger Agreement").

     2.   Grant of Option.  Subject to the terms and conditions
set forth herein, Commercial hereby grants to Wesbanco an option
("Option") to purchase up to 321,620 shares of Commercial Common
Stock, at a price of $50.00 per share (the "Option Price")
payable in cash as provided in Section 4 hereof; provided,
however, that in the event Commercial issues or agrees to issue
any shares of Commercial Common Stock (other than as permitted
under the Agreement) at a price less than $50.00 per share (as
adjusted pursuant to Section 6 hereof), the exercise price shall
be equal to such lesser price.


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     3.   Exercise of Option.

          a.   Provided that Wesbanco is not in material
     breach of the agreements and covenants contained in
     the Agreement, Wesbanco may exercise the Option, in
     whole or in part, at any time or from time to time
     if a Purchase Event (as defined below) shall have
     occurred and be continuing; provided that to the
     extent the Option shall not have been exercised, it
     shall terminate and be of no further force and
     effect (i) on the Effective Date of the Merger or
     (ii) upon termination of the Merger Agreement in
     accordance with the provisions thereof (other than
     a termination resulting from a willful breach by
     Commercial of Section 7.21(d) of the Merger
     Agreement or, following the occurrence of a
     Purchase Event, failure of Commercial's
     shareholders to approve the Merger Agreement by the
     vote required under applicable law), or (iii) six
     months after termination of the Merger Agreement
     due to a willful breach by Commercial of Section
     7.21(d) of the Merger Agreement or, following the
     occurrence of a Purchase Event, failure of
     Commercial's shareholders to approve the Merger
     Agreement by the vote required under applicable
     law; and provided further that any such exercise
     shall be subject to compliance with applicable
     provisions of law.
     
          b.   As used herein, a "Purchase Event" shall
     mean any of the following events or transactions
     occurring after the date hereof:

               (i)  any person (other than
          Commercial, any Commercial Subsidiary,
          Wesbanco or any affiliate of Wesbanco)
          shall have commenced a bona fide tender
          or exchange offer to purchase shares of
          Commercial Common Stock such that upon
          consummation of such offer such person
          would own or control 15% or more of the
          outstanding shares of Commercial Common
          Stock;
          
               (ii) any person (other than
          Commercial or any Commercial
          Subsidiary), other than in connection
          with a transaction to which Wesbanco has
          given its prior written consent, shall
          have filed an application or notice with
          any federal or state regulatory agency
          for clearance or approval, to (x) merge
          or consolidate, or enter into any
          similar transaction, with Commercial or
          any Commercial Subsidiary, (y) purchase,
          lease or otherwise acquire all or
          substantially all of the assets of
          Commercial or any Commercial Subsidiary
          or (z) purchase or otherwise acquire
          (including by way of merger,
          consolidation, share exchange or any
          similar transaction) securities
          representing 51% or more of the voting
          power of Commercial or any Commercial
          Subsidiary;
          


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               (iii)     any person (other than
          Commercial, any Commercial Subsidiary,
          the Commercial Subsidiaries in a
          fiduciary capacity, Wesbanco, affiliates
          of Wesbanco or subsidiaries of Wesbanco
          in a fiduciary capacity) shall have
          acquired after the date hereof
          beneficial ownership or the right to
          acquire beneficial ownership of 15% or
          more of the outstanding shares of
          Commercial Common Stock (the 
          term "beneficial ownership" for purposes of
          this Option Agreement having the meaning
          assigned thereto in Section 13(d) of the
          Exchange Act and the regulations
          promulgated thereunder);
          
               (iv) any person (other than
          Commercial or any Commercial Subsidiary)
          shall have made a bona fide proposal to
          Commercial by public announcement or
          written communication that is or becomes
          the subject of public disclosure to (x)
          acquire Commercial or any Commercial
          Subsidiary by merger, consolidation,
          purchase of all or substantially all of
          its assets or any other similar
          transaction, or (y) make an offer
          described in clause (i) above; or
          
               (v)  Commercial shall have
          willfully breached Section 7.21(d) of
          the Merger Agreement, which breach would
          entitle Wesbanco to terminate such
          Merger Agreement and such breach shall
          not have been cured prior to the Notice
          Date (as defined below).
          
If more than one of the transactions giving rise to a Purchase
Event under this Section 3(b) is undertaken or effected, then all
such transactions shall give rise only to one Purchase Event,
which Purchase Event shall be deemed continuing for all purposes
hereunder until all such transactions are abandoned.  As used in
this Option Agreement, "person" shall have the meanings specified
in Sections 3(a)(9) and 13(d)(3) of the Exchange Act.

          c.   In the event Wesbanco wishes to exercise
     the Option, it shall send to Commercial a written
     notice (the date of which being herein referred to
     as "Notice Date") specifying (i) the total number
     of shares it will purchase pursuant to such
     exercise, and (ii) a place and date not earlier
     than three business days nor later than 60 business
     days from the Notice Date for the closing of such
     purchase ("Closing Date"); provided that if prior
     notification to or approval of any federal or state
     regulatory agency is required in connection with
     such purchase, Wesbanco shall promptly file the
     required notice or application for approval and
     shall expeditiously process the same and the period
     of time that otherwise would run pursuant 
     
     
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     to this sentence shall run instead from the date on 
     which any required notification period has expired or
     been terminated or such approval has been obtained
     and any requisite waiting period shall have passed.
     
     4.   Payment and Delivery of Certificates.

          a.   At the closing referred to in Section
     3(c) hereof, Wesbanco shall pay to Commercial the
     aggregate purchase price for the shares of
     Commercial Common Stock purchased pursuant to the
     exercise of the Option in immediately available
     funds by a wire transfer to a bank account
     designated by Commercial.
     
          b.   At such closing, simultaneously with the
     delivery of cash as provided in subsection (a),
     Commercial shall deliver to Wesbanco a certificate
     or certificates representing the number of shares
     of Commercial Common Stock purchased by Wesbanco, and 
     Wesbanco shall deliver to Commercial a letter agreeing 
     that Wesbanco will not offer to sell or otherwise dispose 
     of such shares in violation of applicable law or the 
     provisions of this Option Agreement.
     
          c.   Certificates for Commercial Common Stock
     delivered at a closing hereunder may be endorsed
     with a restrictive legend which shall read
     substantially as follows:
     
               "The transfer of the shares
          represented by this certificate is
          subject to certain provisions of an
          agreement between the registered holder
          hereof and Commercial Bancshares,
          Incorporated and to resale restrictions
          arising under the Securities Act of
          1933, as amended, a copy of which
          agreement is on file at the principal
          office of Commercial Bancshares,
          Incorporated.  A copy of such agreement
          will be provided to the holder hereof
          without charge upon receipt by
          Commercial Bancshares, Incorporated of a
          written request."
          
It is understood and agreed that the above legend shall be
removed by delivery of substitute certificate(s) without such
legend if Wesbanco shall have delivered to Commercial a copy of a
letter from the staff of the Securities and Exchange Commission,
or an opinion of counsel, in form and substance reasonably
satisfactory to Commercial, to the effect that such legend is not
required for purposes of the Securities Act.


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     5.   Representations.  Commercial hereby represents,
warrants and covenants to Wesbanco as follows:

          a.   Commercial shall at all times maintain
     sufficient authorized but unissued shares of
     Commercial Common Stock so that the Option may be
     exercised without authorization of additional
     shares of Commercial  Common Stock.
     
          b.   The shares to be issued upon due
     exercise, in whole or in part, of the Option, when
     paid for as provided herein, will be duly
     authorized, validly issued, fully paid and
     nonassessable.
     
     6.   Adjustment Upon Changes in Capitalization.  In the
event of any change in Commercial Common Stock by reason of stock
dividends, split-ups, mergers, recapitalizations, combinations,
exchanges of shares or the like, the type and number of shares
subject to the Option, and the purchase price per share, as the
case may be, shall be adjusted appropriately.  In the event that
any additional shares of Commercial Common Stock are issued or
otherwise become outstanding after the date of this Option
Agreement (other than pursuant to this Option Agreement), the
number of shares of Commercial Common Stock subject to the Option
shall be adjusted so that, after such issuance, it equals 19.9%
of the number of shares of Commercial Common Stock then issued
and outstanding without giving effect to any shares subject or
issued pursuant to the Option.  Nothing contained in this Section
6 shall be deemed to authorize Commercial to breach any provision
of the Merger Agreement.

     7.   Registration Rights.  Commercial shall, if requested by
Wesbanco, as expeditiously as possible file a registration
statement on a form of general use under the Securities Act if
necessary in order to permit the sale or other disposition of the
shares of Commercial Common Stock that have been acquired upon
exercise of the Option in accordance with the intended method of
sale or other disposition requested by Wesbanco.  Wesbanco shall
provide all information reasonably requested by Commercial for
inclusion in any registration statement to be filed hereunder.
Commercial will use its best efforts to cause such registration
statement first to become effective and then to remain effective
for such period not in excess of 270 days from the day such
registration statement first becomes effective as may be
reasonably necessary to effect such sales or other dispositions.
In no event shall Commercial be required to effect more than two
registrations hereunder.  All expenses of registrations hereunder
shall be borne equally by Commercial and Wesbanco.  The filing of
any registration statement hereunder may be delayed for such
period of time as may reasonably be required to facilitate any
public distribution by Commercial of Commercial Common Stock.  If
requested by Wesbanco, in connection with any such registration,
Commercial will become a party to any underwriting agreement
relating to the sale of such shares, but only to the extent of
obligating itself in respect of representations, warranties,
indemnities and other agreements customarily included in such
underwriting agreements.  Upon receiving any request from
Wesbanco or assignee thereof under this Section 7, Commercial
agrees to send a copy thereof to Wesbanco and to any assignee
thereof known to Commercial, in each case by promptly mailing the
same, postage prepaid, to the address of record of the persons
entitled to receive such copies.


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     8.   Severability.  If any term, provision, covenant or
restriction contained in this Option Agreement is held by a court
or a federal or state regulatory agency of competent jurisdiction
to be invalid, void or unenforceable, the remainder of the terms,
provisions and covenants and restrictions contained in this
Option Agreement shall remain in full force and effect, and shall
in no way be affected, impaired or invalidated.  If for any
reason such court or regulatory agency determines that the Option
will not permit the holder to acquire the full number of shares
of Commercial Common Stock provided in Section 2 hereof (as adjusted 


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pursuant to Section 6 hereof), it is the express
intention of Commercial to allow the holder to acquire such
lesser number of shares as may be permissible, without any
amendment or modification hereof.

     9.   Put-Back Rights.

          a.   Upon the consummation of any Purchase
     Event described in Section 3(b)(ii) or (v) hereof
     such that (i) a merger, consolidation, purchase,
     lease or acquisition of all or substantially all of
     the assets of Commercial , purchase or other
     acquisition of securities representing 51% or more
     of the voting power of Commercial or any Commercial
     Subsidiary has been consummated, or (ii) a willful
     breach under Section 7.21(d) of the Merger
     Agreement has occurred so that Wesbanco would be
     entitled to terminate the Merger Agreement, and
     prior to the expiration of the Option in accordance
     with the terms hereof, at the request of Wesbanco,
     Commercial  shall repurchase the Option from
     Wesbanco at a price (the "Repurchase Price") equal
     to the difference between the market/offer price
     (as defined below) for shares of Commercial Common
     Stock and the Option Price, multiplied by the
     number of shares for which the Option being
     surrendered hereunder may then be exercised but
     only if the market/offer price is greater than the
     Option Price (the market/offer price is defined as
     the higher of the price per share at which a tender
     offer or exchange offer for 51% or more of the
     voting securities of Commercial has been made and
     consummated, the price per share actually paid by
     any third party pursuant to an agreement that has
     been consummated whereby Commercial has been
     merged, consolidated with or otherwise acquired by
     a third party, and the highest closing price for
     Commercial Common Stock within the four-month
     period immediately preceding the date Wesbanco
     gives written notice of the required repurchase of
     the Option pursuant to this Section 9).  In the
     event that an exchange offer is made or an
     agreement is entered into for a merger or
     consolidation involving consideration other than
     cash, the value of the securities or other property
     issuable or deliverable in exchange for Commercial
     Common shall be determined by a nationally
     recognized investment banking firm mutually
     acceptable to the parties hereto.
     

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          b.   Wesbanco may exercise its right to
     require Commercial to repurchase the Option
     pursuant to this Section 9 by giving Commercial
     written notice of its exercise of its repurchase
     right in accordance with the provisions of this
     Section 9.  Subject to the last proviso of
     paragraph 9(c) below, as promptly as practicable,
     and in any event within five business days after
     the receipt of such notice or notices relating
     thereto, Commercial  shall deliver or cause to be
     delivered to Wesbanco the Repurchase Price for the
     Option or the portion thereof which Commercial is
     not then prohibited under applicable law and
     regulation from so delivering.
     
          c.   To the extent that Commercial is
     prohibited under applicable law or regulation, or
     as a result of administrative or judicial action,
     from repurchasing the Option in full, Commercial
     shall immediately so notify Wesbanco and thereafter
     deliver or cause to be delivered, from time to
     time, to Wesbanco, as appropriate, the portion of
     the Repurchase Price which it is no longer
     prohibited from delivering, within five business
     days after the date on which Commercial is no
     longer so prohibited, provided, however, that to
     the extent that Commercial is at the time and after
     the expiration of 12 months, so prohibited from
     delivering to Wesbanco, the Repurchase Price, in
     full (and Commercial hereby undertakes to use its
     best efforts to receive all required regulatory and
     legal approvals as promptly as practicable),
     Commercial shall deliver to Wesbanco a new Option
     evidencing the right of Wesbanco to purchase that
     number of shares of Commercial Common Stock
     obtained by multiplying the number of shares of
     Commercial Common Stock for which the Option may at
     such time be exercised by a fraction, the numerator
     of which is the Repurchase Price less the portion
     thereof (if any) theretofore delivered to the
     Holder and the denominator of which is the
     Repurchase Price, and Commercial shall have no
     further obligation to repurchase such new Option;
     and provided, further, that upon receipt of such
     notice and until five days thereafter Wesbanco may
     revoke its notice of repurchase of the Option by
     written notice to Commercial at its principal
     office stating that Wesbanco elects to revoke its
     election to exercise its rights to require
     Commercial to repurchase the Option, whereupon
     Commercial will promptly deliver to Wesbanco the
     Option and Commercial shall have no further
     obligation to repurchase such Option.
     
     10.  First Refusal.  If at any time during the eighteen
months immediately following the first purchase of shares of
Commercial Common Stock pursuant to the Option, Wesbanco shall
desire to sell, assign, transfer or otherwise dispose of all or
any of the shares of Commercial Common Stock acquired by it
pursuant to the Option other than in accordance with the put-back
rights in Section 9 hereof, it shall give Commercial written
notice of the proposed transaction ("Offeror's Notice"),
identifying the proposed transferee and setting forth the terms
of the proposed transaction.  An Offeror's Notice shall be deemed
an offer by Wesbanco to Commercial, which may be accepted within
ten business days of the receipt of such Offeror's 


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Notice, on the same terms and conditions and at the same price at 
which Wesbanco is proposing to transfer such shares to a third party.
Settlement for any shares purchased by Commercial shall be within
15 business days of the date of the acceptance of the offer and
the purchase price shall be paid to Wesbanco in immediately
available funds; provided that if prior notification to or
approval of any federal or state regulatory authority is required
in connection with such purchase, Commercial shall promptly file
the required notice or application for approval and shall
expeditiously process the same and the period of time that
otherwise would run pursuant to this sentence shall run instead
from the date on which any required notification period has
expired or been terminated or such approval has been obtained and
any requisite waiting period shall have passed.  In the event of
the failure or refusal of Commercial to purchase all of the
shares covered by the Offeror's Notice or any applicable
regulatory authority shall disapprove Commercial's proposed
purchase of such shares, Wesbanco may sell all, but not less than
all, of such shares to such third party at no less than the price
specified and on terms no more favorable than those set forth in
the Offeror's Notice.  The requirements of this Section 9 shall
not apply to any disposition (i) as a result of which the
proposed transferee would own not more than five percent of the
then outstanding shares of Commercial Common Stock, (ii) of
Commercial Common Stock by a person to which Wesbanco has
assigned its rights under the Option in accordance with Section
11(c) hereof or (iii) pursuant to a registration under Section 7
hereof.

     11.  Miscellaneous.

          a.   Expenses.  Except as otherwise provided
     herein, each of the parties hereto shall bear and
     pay all costs and expenses incurred by it or on its
     behalf in connection with the transactions
     contemplated hereunder, including fees and expenses
     of its own financial consultants, investment
     bankers, accountants and counsel.
     
          b.   Entire Agreement.  Except as otherwise
     expressly provided herein, this Option Agreement
     contains the entire agreement between the parties
     with respect to the transactions contemplated
     hereunder and supersedes all prior arrangements or
     understandings with respect thereto, written or
     oral.  The terms and conditions of this Option
     Agreement shall inure to the benefit of and be
     binding upon the parties hereto and their
     respective successors and assigns.  Nothing in this
     Option Agreement, expressed or implied, is intended
     to confer upon any party, other than the parties
     hereto, and their respective successors and
     assigns, any rights, remedies, obligations or
     liabilities under or by reason of this Option
     Agreement, except as expressly provided herein.
     
          c.   Assignment.  Neither of the parties
     hereto may assign any of its rights or obligations
     under this Option Agreement or the Option created
     hereunder to any other person, without the express
     written consent of the other party.
     

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          d.   Notices.  All notices or other
     communications which are required or permitted
     hereunder shall be in writing and sufficient if
     delivered in the manner and to the addresses
     provided for in or pursuant to Section 17 of the
     Merger Agreement.
     
          e.   Counterparts.  This Option Agreement may
     be executed in any number of counterparts, and each
     such counterpart shall be deemed to be an original
     instrument, but all such counterparts together
     shall constitute but one agreement.
     
          f.   Specific Performance.  The parties agree
     that damages would be an inadequate remedy for a
     breach of the provisions of this Option Agreement
     by either party hereto and that this Option
     Agreement may be enforced by either party hereto
     through injunctive or other equitable relief.

          g.   Governing Law.  This Option Agreement
     shall be governed by and construed in accordance
     with the laws of the State of West Virginia
     applicable to agreements made and entirely to be
     performed within such state and such federal laws
     as may be applicable.
     
     IN WITNESS WHEREOF, each of the parties hereto has executed
this Option Agreement as of the day and year first written above.


                              WESBANCO, INC.



                              By /s/ E. M. George 
                                 ----------------------------------
                                   Its  President
                                        ---------------------------


                              COMMERCIAL BANCSHARES,
                              INCORPORATED



                              By  /s/ Larry G. Johnson 
                                 ---------------------------------
                                   Its  Executive VP & CFO
                                        --------------------------