Document:

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                                                                    EXHIBIT 10.6

                     COMMUNITY FIRST INC. STOCK OPTION PLAN

1.   Establishment and Purpose of the Plan. Community First, Inc. (the
     "Company") is the sole shareholder of Community First Bank & Trust (the
     "Bank"). The Company became the sole shareholder of the Bank pursuant to a
     share exchange effective August 1, 2002 (the "Share Exchange"). Prior to
     the Share Exchange, the Bank had in place the Community First Bank & Trust
     Stock Option Plan (the "Bank Plan"). Pursuant to the Bank Plan, the Bank
     had entered into various agreements pursuant to which options to purchase
     stock of the Bank were granted to various persons (the "Bank Option
     Agreements"). In connection with the Share Exchange, the Company and the
     Bank entered into an agreement pursuant to which the Company assumed the
     obligations of the Bank under the Bank Plan and the Bank Option Agreements
     and agreed that promptly thereafter the Bank Plan and the Bank Option
     Agreements would be amended and restated so that the amended and restated
     plan and agreements would have substantially the same terms as the Bank
     Plan and the Bank Option Agreements prior to the Share Exchange except that
     options granted under the amended and restated plan and agreements would be
     for stock of the Company rather than stock of the Bank and all obligations
     of the Bank under the Bank Plan and the Bank Option Agreements would become
     obligations of the Company rather than the Bank under the amended and
     restated plan and agreements. The purpose of this Plan is to amend and
     restate and replace and supersede the Bank Plan as described above so as to
     provide for the issuance of options for stock of the Company to provide a
     flexible means of compensation and motivations for outstanding performance
     by employees of the Company, the Bank, and the Subsidiaries (as defined
     below) of either the Company or the Bank, directors of the Company or the
     Bank, and organizers of the Bank to further the growth and profitability of
     the Company and the Bank. The Company shall promptly enter into a new
     option agreement with each person who was an optionee under a Bank Option
     Agreement immediately prior to the effective date of the Share Exchange,
     which new option agreements (the "Replacement Option Agreements") shall
     amend, restate, replace, and supersede the Bank Option Agreements. Each
     Replacement Option Agreement shall be on the same terms as the
     corresponding Bank Option Agreement it replaces, except that it shall
     provide for the options for stock of the Company rather than for options
     for stock of the Bank, and all obligations of the Company under the
     Replacement Option Agreements. This plan amends, restates, replaces, and
     supercedes the Bank Plan, and the Replacement Option Agreements shall
     emend, restate, replace, and supercede all Bank Option Agreements Upon
     adoption of this Plan by the Board of Directors, the Bank shall have no
     further obligations under the Bank Plan or this Plan, and no persons shall
     have any rights under the Bank Plan. Upon the execution of the Replacement
     Option Agreements, the Bank shall have no further obligations under the
     Bank Option Agreements and no persons shall have any rights under the Bank
     Option Agreements.

2.   Definitions.

     Bank. Community First Bank & Trust, a bank chartered under the laws of
Tennessee, and any successor or transferee of substantially all of its business
or assets.

     Bank Option Agreement(s). As defined in Section 1 above.

     Bank Plan. As defined in Section 1 above.

     Board or Board of Directors. The Board of Directors of the Company.

     Change of Control. As defined in Section 13.

     Code. The Internal Revenue Code as amended.

     Common Stock. The common stock of the Company, $10.00 par value.

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     Company. Community First, Inc., a corporation organized under the laws of
the state of Tennessee and bank holding company and any successor or transferee
of substantially all of its business or assets.

     Employee. A full-time key employee of the Company or a Subsidiary,
including an officer who is such an employee.

     Fair Market Value. The fair market value of the shares of Common Stock as
of such date as determined in good faith by the Board of Directors.

     Incentive Stock Option. Any Option intended to meet the requirements of an
incentive stock option as defined in Section 422.

     New Directors. As defined in Section 13(b)(iv).

     Non-Qualified Stock Option. Any option not intended to be an Incentive
Stock Option.

     Option. An option to purchase Common Stock granted under the Plan,
including both an Incentive Stock Option and a Non-Qualified Stock Option.

     Original Grant Date. The date of execution of the Bank Option Agreement
that is replaced by a Replacement Option Agreement.

     Person. An individual, a partnership, a corporation, or any other private,
governmental or other entity.

     Plan. The Community First, Inc. Stock Option Plan herein set forth, as the
same may from time to time be amended.

     Replacement Option Agreement(s). As defined in Section 1 above.

     Rule 16b-3. Rule 16b-3 under the Securities Exchange Act of 1934, as
amended and any successor rule or regulation.

     Section 422. Section 422 of the Internal Revenue Code of 1986, as amended,
or any successor statute.

     Share Exchange. As defined in Section 1 above.

     Subsidiary. Any business association (including a corporation or a
partnership) in an unbroken chain of such associations beginning with the
Company if each of the associations (other than the last association in such
chain) owns equity of interests possessing 50 percent or more of the combined
voting power of all classes of equity interests in one of the other associations
in such chain.

3.   Eligibility. A grant under this Plan may be made to any Employee, any
     director of the Company or a Subsidiary, or any organizers of the Bank as
     to whom the Board of Directors determines that makings such grant is in the
     best interests of the Company or the Bank; provided, however, that (i) no
     grant may be made to a director of the Company or a Subsidiary who serves
     on the Board of Directors other than as provided under Rule 16b-3, and (ii)
     no grant of an Incentive Stock Option may be made to a person other than an
     Employee.

4.   Plan Administration. This Plan shall be administered by the Board of
     Directors. The Board of Directors shall have full power to interpret and
     administer this Plan and full authority to act in selecting the grantees
     and in determining the type and amount of grants, the terms and conditions
     of grants, and the terms of agreements which will be entered into with
     grantees governing such grants. The Board of Directors shall

<PAGE>

     have the power to make rules and guidelines for carrying out his Plan and
     to make changes in such rules and guidelines from time to time as it deems
     proper. Any interpretation by the Board of Directors of the terms and
     provisions of this Plan and the administration thereof and all action taken
     by the Board of Directors shall be final and binding.

5.   Shares Subject to the Plan. Subject to adjustment as provided in Section 8,
     the total amount of shares of Common Stock available for grant under this
     Plan shall be 171,000. Shares of the Common Stock issued hereunder may
     consist, in whole or in part, of authorized and unissued shares, treasury
     shares and shares acquired in the open market or by private purchase by the
     Company. Any Common Stock which is purchased shall be purchased by the
     Company at prices no higher than the Fair Market Value of such Common Stock
     at the time of the purchase. If for any reason any shares of Common Stock
     issued under any grant hereunder are forfeited or canceled, or a grant
     otherwise terminates or is terminated for any reason without the issuance
     of any shares, then all such shares, to the extent or any such forfeiture,
     cancellation or termination, shall again be available for grant under this
     Plan.

6.   Types of Grants.

          (a)  The Board of Directors may make such grants under this Plan as in
               its sole discretion it deems advisable to effect the purpose of
               the Plan, including without limitation, grants of Incentive Stock
               Options and Non-Qualified Stock Options. Such grants may be
               issued separately or in combination and additional grants may be
               issued in combination with grants previously issued under this
               Plan or otherwise. As used in this Plan, references to grants in
               tandem shall mean grants consisting of more than one type of
               grant where the exercise of one element of the grant effects the
               cancellation of one or more other elements of the grant.

          (b)  Except with respect to the options granted pursuant to the
               Replacement Option Agreements referenced in Section 1 hereof, the
               exercise price of an Option or other grant shall equal at least
               100 percent of the Fair Market Value of the shares of Common
               Stock on the date of such grant, and be paid in cash or such
               other consideration as the Board of Directors may determine
               consistent with applicable law.

7.   Options.

          (a)  Each Option shall have such terms and conditions as the Board of
               Directors shall determine in accordance with this Plan. A grantee
               shall have no rights of a shareholder with respect to any shares
               of Common Stock subject to an Option unless and until a
               certificate for such shares shall have been issued.

          (b)  All the provisions of Section 422 and the regulations thereunder
               as in effect from time to time are hereby incorporated by
               reference herein with respect to Incentive Stock Options to the
               extent that their inclusion in this Plan is necessary from time
               to time to preserve their status as Incentive Stock Options for
               purposes of Section 422. Each provision of this Plan and each
               agreement relating to an Incentive Stock Option shall be
               construed so that it shall be an Incentive Stock Option for
               purposes of Section 422, and any provisions hereof and thereof
               which cannot be so construed shall be disregarded.

          (c)  Notwithstanding any other provision herein contained, no Employee
               may receive an Incentive Stock Option under this Plan if such
               Employee, at the time the Incentive Stock Option is granted (or
               in the case of an Option granted pursuant to a Replacement Option
               Agreement as of the Original Grant Date) owns (as defined in
               Section 424(d) of the Code) stock possessing more than

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               10 percent of the total combined voting power of all classes of
               stock of the Company, its parent or any Subsidiary, unless the
               option price for such Incentive Stock Option is at least 110
               percent of the fair market value of the Common Stock subject to
               such Incentive Stock Option on the date of grant (or on the
               Original Grant Date if the Option is granted pursuant to a
               Replacement Option Agreement) and such Option is not exercisable
               after the date five years from the date such Option is granted
               (or in the case of an Option granted pursuant to a Replacement
               Option Agreement five years after the Original Grant Date).

          (d)  The aggregate Fair Market Value (determined with respect to each
               Incentive Stock Option as of the time such Incentive Stock Option
               is granted or in the case of Options granted pursuant to
               Replacement Option Agreements determined as of the Original Grant
               Date) of the capital stock with respect to which Incentive Stock
               Options are exercisable for the first time by an Employee during
               any calendar year (under this Plan or any other plan of the
               Company or the parent or any Subsidiary of the Company) shall not
               exceed $100,000.

          (e)  No Option shall exceed ten years in duration. No Incentive Stock
               Option shall be granted pursuant to this Plan at any time beyond
               ten years from the earlier of the adoption date of the Plan or
               the date of shareholder approval of the Plan.

8.   Adjustments Upon Changes in Capitalization. In the event of a
     reorganization, recapitalization, stock split, stock dividend, issuance of
     securities convertible into Common Stock, combination of shares, share
     exchange, merger, consolidation or any other change in the corporate
     structure of the Company affecting Common Stock, or a sale by the Company
     of all or substantially all of its assets, or any distribution to
     shareholders other than a normal cash dividend, or any assumption or
     conversion of outstanding grants as a result of an acquisition, and except
     as otherwise provided in an agreement between the grantee and the Company,
     the Board of Directors shall make appropriate adjustment or shall require
     in conjunction with such transaction that appropriate adjustment be made in
     the number and kind of shares authorized by this Plan and in outstanding
     grants as it deems appropriate to maintain equivalent value; provided,
     however, that adjustments to Incentive Stock Options shall meet the
     applicable requirements of Section 422 and Section 424 of the Code.

9.   Termination and Amendment.

          (a)  This Plan shall be effective upon its adoption by the Board of
               Directors, provided that approval by the shareholders of the
               Company is obtained within the 12 months preceding or following
               such adoption. It shall remain in full force and effect unless
               terminated by the Board of Directors, which shall have power to
               amend, suspend, terminate or reinstate this Plan at any time,
               provided that no amendment (except as described in Section 9(b)
               below) which increases the number of Shares of Common Stock
               subject to the Plan, or materially adversely affects the
               availability of Rule 16b-3 with respect to this Plan, shall be
               made without shareholder approval.

          (b)  Notwithstanding the foregoing, the Board of Directors may (i)
               amend any limitations in this Plan if and when they are no longer
               required under Rule 16b-3 or Section 422 and (ii) amend the
               provisions of this Plan to assure its continued compliance with
               Rule 16b-3 and section 422.

10.  Non-Assignability. Unless otherwise specified in an agreement between the
     grantee and the Company, grants are not transferable other than by will or
     the laws of descent and distribution. A grant is exercisable during the
     grantee's lifetime only by the grantee or his or her guardian or legal
     representative.

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11.  Exercise by Estate. Any provision of this Plan to the contrary
     notwithstanding, unless otherwise determined by the Board of Directors, the
     estate of any grantee shall have 12 months from the date of such grantee's
     death to exercise any grant hereunder, or such longer period as the Board
     of Directors may determine. Upon the expiration of such 12 month period (or
     if the Board so determines, such longer period), the grant shall terminate.

12.  General Provisions.

          (a)  Nothing contained in this Plan, or in any grant made pursuant to
               this Plan, shall confer upon any grantee any right with respect
               to terms, conditions or continuance of employment by the Company,
               the Bank, or any Subsidiary.

          (b)  For purposes of this Plan, transfer of employment between the
               Company, the Bank, and any Subsidiaries shall not be deemed
               termination of employment.

          (c)  Appropriate provision may be made by the Board of Directors for
               all taxes required to be withheld in connection with any grant,
               the exercise thereof, and the transfer of shares of Common Stock,
               in respect of any federal, state, local or foreign withholding
               taxes. In the case of payment in the form of Common Stock, the
               Company shall have the right to retain the number of shares of
               Common Stock whose Fair Market Value equals the amount to be
               withheld.

          (d)  If any day on or before which such action by the Plan must be
               taken falls on a Saturday, Sunday or legal holiday, such action
               may be taken on the next succeeding day which is not a Saturday,
               Sunday, or legal holiday.

          (e)  This Plan and all determinations made and actions taken pursuant
               thereto shall be governed by the substantive laws and procedural
               provisions of the state of Tennessee, without regard to
               principles of conflicts of laws, unless otherwise governed by
               federal law.

          (f)  The Board of Directors may amend any outstanding grants to the
               extent it deems appropriate, provided that the grantee's consent
               shall be required in the case of amendments adverse to the
               grantee.

13.  Change of Control of the Company

          (a)  Any provision of this Plan to the contrary notwithstanding, in
               the event of a change in control of the Company, unless (i)
               otherwise directed by the Board of Directors by resolution
               adopted prior to such Change in Control or within ten days
               thereafter or (ii) otherwise provided in the agreement entered
               into between the Company and a grant recipient, all of the grants
               under this Plan shall become completely vested and immediately
               exercisable.

          (b)  For purposes of this Section 13, "Change in Control" of the
               Company shall mean the occurrence of one or more of the
               following.

                    (i)  Acquisition in one or more transactions of 25 percent
                         or more of the Common Stock by any Person, or by two or
                         more Persons acting as a group, other than directly
                         from the Company;

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                    (ii)  Acquisition in one or more transactions of at least 15
                          percent but less than 25 percent of the Common Stock
                          by any Person, or by two or more Persons acting as a
                          group (excluding officers and directors of the
                          Company), and the adoption by the Board of Directors
                          of a resolution declaring that a change in control of
                          the Company has occurred;

                    (iii) A merger, consolidation, reorganization,
                          recapitalization or similar transaction involving the
                          securities of the Company upon the consummation of
                          which more than 50 percent in voting power of the
                          voting securities of the surviving corporation(s) is
                          held by Persons other than former shareholders of the
                          Company; or

                    (iv)  25 percent or more of the directors elected by
                          shareholders of the Company to the Board of Directors
                          are persons who are not listed as nominees in the
                          Company's then most recent proxy statement (the "New
                          Directors"), unless a majority of the members of the
                          Board of Directors, excluding the New Directors, vote
                          that no change of control shall have occurred by
                          virtue of the election of the New Directors.

          (c)  If grants shall become exercisable pursuant to this Section 13,
               the Company shall use its commercially reasonable efforts to
               assist the grantees in the exercise of the grants in such a
               manner as to avoid liability to the Company for profits under
               Section 16(b) of the Securities Exchange Act of 1934, as amended
               as a result of such exercise, including, without limitation,
               explanation of and assistance in meeting the requirements of
               Paragraph (e) of Rule 16b-3.

14.  Undercapitalization. In the event the Company's or the Bank's capital falls
     below minimum regulatory requirements, as determined by the Company's or
     the Bank's primary state or federal regulator, the Company's or the Bank's
     primary state or federal regulator may direct the Company or the Bank to
     require any holder granted options under this Plan to immediately exercise
     or forfeit their stock rights under those grants.

     IN WITNESS WHEREOF, the foregoing Community First, Inc. Stock Option Plan
     has been executed this 15 day of October, 2002.

                                        COMMUNITY FIRST, INC.

                                        By: /s/ Marc R. Lively
                                            ------------------------------------

                                        Its: President<PAGE>
                                                                     Exhibit 4.3

                   -------------------------------------------

                           SEABULK INTERNATIONAL, INC.

                                       and

                           the Guarantors named herein

                   -------------------------------------------

                          9 1/2% SENIOR NOTES DUE 2013

                   -------------------------------------------

                            -------------------------

                          SECOND SUPPLEMENTAL INDENTURE
                      AND AMENDMENT -- SUBSIDIARY GUARANTEE

                           DATED AS OF MARCH 22, 2004

                   -------------------------------------------

                       WACHOVIA BANK, NATIONAL ASSOCIATION

                                     Trustee

                   -------------------------------------------

<PAGE>

         This SECOND SUPPLEMENTAL INDENTURE, dated as of March 22, 2004, is
among Seabulk International, Inc., a Delaware corporation (the "Company"), each
of the parties identified under the caption "Guarantors" on the signature page
hereto (the "Guarantors") and Wachovia Bank, National Association, as Trustee.

                                    RECITALS

         WHEREAS, the Company, the initial Guarantors and the Trustee entered
into an Indenture, dated as of August 5, 2003 (the "Indenture"), pursuant to
which the Company has issued $150,000,000 in principal amount of 9 1/2% Senior
Notes due 2013 (the "Notes"); and

         WHEREAS, Section 9.01(g) of the Indenture provides that the Company,
the Guarantors and the Trustee may amend or supplement the Indenture in order to
comply with Section 4.13 or Article 10 thereof, without the consent of the
Holders of the Notes;

         WHEREAS, Seabulk Chemical Carriers, Inc., a Guarantor, has changed its
name to Seabulk Energy Carriers, Inc.;

         WHEREAS, Seabulk Energy Carriers, Inc. has created the following
subsidiaries that are Restricted U.S. Subsidiaries (as defined in the
Indenture): Seabulk Energy Transport, Inc., a Florida corporation, Seabulk Ocean
Transport, Inc., a Florida corporation, and Seabulk Petroleum Transport, Inc., a
Florida corporation, and pursuant to Section 4.13(a) of the Indenture, each of
Seabulk Energy Transport, Inc., Seabulk Ocean Transport, Inc. and Seabulk
Petroleum Transport, Inc. is executing this Second Supplemental Indenture to
provide for its Subsidiary Guarantee (as defined in the Indenture);

         WHEREAS, the Company has created a subsidiary, Seabulk Global Carriers,
Inc., a Liberian corporation, and Seabulk Global Carriers, Inc. has created the
following subsidiaries: Seabulk Global Transport, Inc., a Liberian corporation,
and Seabulk Overseas Transport, Inc., a Liberian corporation, and pursuant to
Section 9.01(g) of the Indenture, each of Seabulk Global Carriers, Inc., Seabulk
Global Transport, Inc. and Seabulk Overseas Transport, Inc. is executing this
Second Supplemental Indenture to provide for its Subsidiary Guarantee; and

         WHEREAS, all acts and things prescribed by the Indenture, by law and by
the Certificate of Incorporation and the Bylaws (or comparable constituent
documents) of the Company, of the Guarantors and of the Trustee necessary to
make this Second Supplemental Indenture a valid instrument legally binding on
the Company, the Guarantors and the Trustee, in accordance with its terms, have
been duly done and performed;

         NOW, THEREFORE, to comply with the provisions of the Indenture and in
consideration of the above premises, the Company, the Guarantors and the Trustee
covenant and agree for the equal and proportionate benefit of the respective
Holders of the Notes as follows:

                                   ARTICLE I

         Section 1.01. This Second Supplemental Indenture is supplemental to the
Indenture and does and shall be deemed to form a part of, and shall be construed
in connection with and as part of, the Indenture for any and all purposes.

                                       2
<PAGE>

         Section 1.02. This Second Supplemental Indenture shall become effective
immediately upon its execution and delivery by each of the Company, the
Guarantors and the Trustee.

                                   ARTICLE II

         From this date, in accordance with Section 4.13 and by executing this
Second Supplemental Indenture, the Guarantors whose signatures appear below are
subject to the provisions of the Indenture to the extent provided for in Article
10 thereunder.

                                  ARTICLE III

         Section 3.01. Except as specifically modified herein, the Indenture and
the Notes are in all respects ratified and confirmed (mutatis mutandis) and
shall remain in full force and effect in accordance with their terms with all
capitalized terms used herein without definition having the same respective
meanings ascribed to them as in the Indenture.

         Section 3.02. Except as otherwise expressly provided herein, no duties,
responsibilities or liabilities are assumed, or shall be construed to be
assumed, by the Trustee by reason of this Second Supplemental Indenture. This
Second Supplemental Indenture is executed and accepted by the Trustee subject to
all the terms and conditions set forth in the Indenture with the same force and
effect as if those terms and conditions were repeated at length herein and made
applicable to the Trustee with respect hereto.

         Section 3.03. THIS SECOND SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY,
AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

         Section 3.04. The parties may sign any number of copies of this Second
Supplemental Indenture. Each signed copy shall be an original, but all of such
executed copies together shall represent the same agreement.

                          [NEXT PAGE IS SIGNATURE PAGE]

                                       3
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this Second
Supplemental Indenture to be duly executed, all as of the date first written
above.

                                       SEABULK INTERNATIONAL, INC.

                                       By: /s/ Vincent J. deSostoa
                                           -------------------------------------
                                           Name:  Vincent J. deSostoa
                                           Title: Senior Vice President and
                                                  Chief Financial Officer

                                       GUARANTORS

                                       LONE STAR MARINE SERVICES, INC.
                                       SEABULK ARIZONA USA, INC.
                                       SEABULK ENERGY CARRIERS, INC.
                                       SEABULK ENERGY TRANSPORT, INC.
                                       SEABULK GLOBAL CARRIERS, INC.
                                       SEABULK GLOBAL TRANSPORT, INC.
                                       SEABULK MARINE INTERNATIONAL, INC.
                                       SEABULK MARINE SERVICES, INC.
                                       SEABULK OCEAN SYSTEMS CORPORATION
                                       SEABULK OCEAN SYSTEMS HOLDINGS
                                       CORPORATION
                                       SEABULK OCEAN TRANSPORT, INC.
                                       SEABULK OFFSHORE ABU DHABI, INC.
                                       SEABULK OFFSHORE DUBAI, INC.
                                       SEABULK OFFSHORE INTERNATIONAL, INC.
                                       SEABULK OFFSHORE OPERATORS, INC.
                                       SEABULK OPERATORS, INC.
                                       SEABULK OVERSEAS TRANSPORT, INC.
                                       SEABULK PETROLEUM TRANSPORT, INC.
                                       SEABULK TANKERS, INC.
                                       SEABULK TOWING, INC.
                                       SEABULK TOWING SERVICES, INC.
                                       SEABULK TRANSMARINE II, INC.
                                       SEABULK TRANSPORT, INC.

                                       By: /s/ Vincent J. deSostoa
                                           -------------------------------------
                                           Name:  Vincent J. deSostoa
                                           Title: Senior Vice President

                                       4
<PAGE>

                                       SEABULK TANKERS, LTD.

                                       By: SEABULK TRANSPORT, INC.,
                                           General Partner

                                       By: /s/ Vincent J. deSostoa
                                           -------------------------------------
                                           Name:  Vincent J. deSostoa
                                           Title: Senior Vice President

                                       SEABULK AMERICA PARTNERSHP, LTD.
                                       SEABULK OFFSHORE, LTD.
                                       SEABULK TRANSMARINE PARTNERSHIP, LTD.

                                       By: SEABULK TANKERS, LTD.,
                                           General Partner

                                       By: SEABULK TRANSPORT, INC.,
                                           General Partner

                                       By: /s/ Vincent J. deSostoa
                                           -------------------------------------
                                           Name:  Vincent J. deSostoa
                                           Title: Senior Vice President

                                       WACHOVIA BANK, NATIONAL
                                       ASSOCIATION, as Trustee

                                       By: /s/ JOHN SPEICHERT
                                           -------------------------------------
                                                Name:   John Speichert
                                                Title:  Vice President

                                       5

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