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                                                                   EXHIBIT 4.6.1
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                          CHESAPEAKE ENERGY CORPORATION

                                       and

                     the Subsidiary Guarantors named herein

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

                           7.75% SENIOR NOTES DUE 2015

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

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

                          FIRST SUPPLEMENTAL INDENTURE

                          DATED AS OF February 14, 2003

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

                              THE BANK OF NEW YORK

                                   as Trustee

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

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         THIS FIRST SUPPLEMENTAL INDENTURE, dated as of February 14, 2003, is
among Chesapeake Energy Corporation, an Oklahoma corporation (the "Company"),
each of the parties identified under the caption "Subsidiary Guarantors" on the
signature page hereto (the "Subsidiary Guarantors") and The Bank of New York, as
Trustee.

                                    RECITALS

         WHEREAS, the Company, the Subsidiary Guarantors a party thereto and the
Trustee entered into an Indenture, dated as of December 20, 2002 (the
"Indenture"), pursuant to which the Company has originally issued $150,000,000
in principal amount of 7.75% Senior Notes due 2015 (the "Notes"); and

         WHEREAS, Section 9.01(3) of the Indenture provides that the Company,
the Subsidiary Guarantors and the Trustee may amend or supplement the Indenture
without notice to or consent of any Holder to reflect the addition of any
Subsidiary Guarantor, as provided for in the Indenture; and

         WHEREAS, the Board of Directors of the Company has designated
Chesapeake ORC, L.L.C. as a Restricted Subsidiary of the Company and desires to
add such entity as a Subsidiary Guarantor under the Indenture; and

         WHEREAS, all acts and things prescribed by the Indenture, by law and by
the charter and the bylaws (or comparable constituent documents) of the Company,
of the Subsidiary Guarantors and of the Trustee necessary to make this First
Supplemental Indenture a valid instrument legally binding on the Company, the
Subsidiary 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 Subsidiary Guarantors and
the Trustee covenant and agree for the equal and proportionate benefit of the
respective Holders of the Notes as follows:

                                    ARTICLE 1

         Section 1.01. This First 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.

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

First Supplemental Indenture (7.75%)

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                                    ARTICLE 2

         From this date, in accordance with Section 10.03 and by executing this
First Supplemental Indenture, Chesapeake ORC, L.L.C., an Oklahoma limited
liability company, is subject to the provisions of the Indenture as a Subsidiary
Guarantor to the extent provided for in Article Ten thereunder.

                                    ARTICLE 3

         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 First Supplemental Indenture. This
First 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.   The Company hereby notifies the Trustee that Chesapeake
ORC, L.L.C. has been designated by the Board of Directors of the Company as a
Restricted Subsidiary (as that term is defined in the Indenture).

         Section 3.04.   THE LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE
USED TO CONSTRUE AND ENFORCE THIS FIRST SUPPLEMENTAL INDENTURE.

         Section 3.05.   The parties may sign any number of copies of this First
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]

First Supplemental Indenture (7.75%)

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

                                       COMPANY:

                                       CHESAPEAKE ENERGY CORPORATION

                                       By /s/ Aubrey K. McClendon
                                         ------------------------
                                       Name: Aubrey K. McClendon
                                             -------------------
                                       Title: Chief Executive Officer
                                              -----------------------

                                       SUBSIDIARY GUARANTORS:

                                       CHESAPEAKE BETA CORP.
                                       CHESAPEAKE DELTA CORP.
                                       CHESAPEAKE ENERGY LOUISIANA
                                       CORPORATION
                                       CHESAPEAKE OPERATING, INC.
                                       NOMAC DRILLING CORPORATION
                                       CARMEN ACQUISITION, L.L.C.
                                       CHESAPEAKE ACQUISITION, L.L.C.
                                       CHESAPEAKE ENO ACQUISITION, L.L.C.
                                       CHESAPEAKE FOCUS, L.L.C.
                                       CHESAPEAKE KNAN ACQUISITION, L.L.C.
                                       CHESAPEAKE MOUNTAIN FRONT, L.L.C.
                                       CHESAPEAKE ORC, L.L.C.
                                       CHESAPEAKE ROYALTY, L.L.C.
                                       GOTHIC ENERGY, L.L.C.
                                       GOTHIC PRODUCTION, L.L.C.
                                       SAP ACQUISITION, L.L.C.
                                       THE AMES COMPANY, L.L.C.

                                       By /s/ Aubrey K. McClendon
                                         ------------------------
                                       Name: Aubrey K. McClendon
                                             -------------------
                                       Title: Chief Executive Officer
                                              -----------------------

                                       CHESAPEAKE EXPLORATION LIMITED
                                       PARTNERSHIP

First Supplemental Indenture (7.75%)

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                                       CHESAPEAKE LOUISIANA, L.P.
                                       CHESAPEAKE PANHANDLE LIMITED
                                       PARTNERSHIP
                                       CHESAPEAKE-STAGHORN ACQUISITION L.P.
                                       CHESAPEAKE SIGMA, L.P.

                                       By:   Chesapeake Operating, Inc. as
                                       general partner of each representative
                                       entity

                                       By /s/ Aubrey K. McClendon
                                         ------------------------
                                       Name: Aubrey K. McClendon
                                             -------------------
                                       Title: Chief Executive Officer
                                              -----------------------

                                       TRUSTEE:

                                       THE BANK OF NEW YORK, as Trustee

                                       By /s/ Louis P. Young
                                         -------------------
                                       Name: Louis P. Young
                                            ---------------
                                       Title: Vice President
                                             ---------------

First Supplemental Indenture (7.75%)

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                                                                 Exhibit 10.1.14

                          CHESAPEAKE ENERGY CORPORATION

                2003 STOCK AWARD PLAN FOR NON-EMPLOYEE DIRECTORS

     1.    Purposes of the Plan. This Plan is established by the Company to aid
in attracting and retaining persons of outstanding competence to serve on the
Board of Directors who are not employed by the Company. The Plan is intended to
enable such persons to acquire or increase ownership interests in the Company on
a basis that will encourage them to use their best efforts to promote the growth
and profitability of the Company. Consistent with these objectives, the Plan
provides for the award of Shares to Non-Employee Directors on the terms and
subject to the conditions set forth in the Plan.

     2.    Establishment. The Plan is effective as of January 3, 2003.

     3.    Definitions. As used herein, the following definitions shall apply:

           (a) "Applicable Laws" means the requirements of state corporate laws,
     United States federal and state securities laws, the Code, and any stock
     exchange or quotation system on which the Common Stock is listed or quoted.

           (b) "Board" means the Board of Directors of the Company.

           (c) "Code" means the Internal Revenue Code of 1986, as amended.

           (d) "Common Stock" means the Company's common stock.

           (e) "Company" means Chesapeake Energy Corporation, an Oklahoma
     corporation, and any successor to the Company.

           (f) "Director" means a member of the Board.

           (g) "Non-Employee Director" means a Director who, as of the date
     first elected or appointed to the Board, is not an officer or otherwise
     employed by the Company or any of its subsidiaries.

           (h) "Paragraph" means a paragraph of the Plan.

           (i) "Participant" means a Non-Employee Director who has been awarded
     Shares under the Plan.

           (j) "Plan" means the Chesapeake Energy Corporation 2003 Stock Award
     Plan for Non-Employee Directors, as may be amended from time to time.

           (k) "Share" means a share of the Common Stock, as adjusted in
     accordance with Paragraph 7.

           (l) "Shareholder Approval" means approval by the holders of a
     majority of the outstanding shares of Common Stock, present or represented
     and entitled to vote at a meeting called for such purposes.

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     4.    Stock Subject to the Plan. Subject to the provisions of Paragraph 7,
the maximum aggregate number of Shares that may be awarded under the Plan is
50,000 Shares.

     5.    Administration of the Plan. The Plan shall be administered by the
Board. Subject to the provisions of the Plan, the Board shall have the authority
to prescribe, amend and rescind rules and regulations relating to the Plan and
to construe and interpret the terms of the Plan and awards made pursuant to the
Plan. All decisions, determinations and interpretations of the Board shall be
final and binding on all Participants.

     6.    Award of Shares.

           (a) Each individual who becomes a Non-Employee Director after the
     effective date of the Plan shall be awarded 10,000 Shares on his or her
     first day of service as a Non-Employee Director.

           (b) In consideration for the Shares awarded under the Plan, each
     Participant shall pay the Company an amount equal to the aggregate par
     value of the Shares awarded (the "Share Consideration"). The Share
     Consideration shall be payable in cash, provided the Company shall withhold
     the Share Consideration from the first payment of director fees to be made
     by the Company to the Participant as a Non-Employee Director if the Share
     Consideration has not been earlier paid. A Participant must pay the amount
     of taxes required by law as a result of an award of Shares under the Plan.

           (c) Upon receipt of the Share Consideration and subject to Paragraph
     9, the Company shall issue the Participant a stock certificate evidencing
     the Shares awarded to the Participant under the Plan.

     7.    Adjustments Upon Changes in Capitalization. Subject to any required
action by the shareholders of the Company, the number and type of Shares which
have been authorized for issuance under the Plan but as to which no Shares have
yet been awarded, shall be proportionately adjusted for any increase or decrease
in the number or type of issued Shares resulting from a stock split, reverse
stock split, stock dividend, combination or reclassification of the Common
Stock, or any other increase or decrease in the number of issued shares of
Common Stock effected without receipt of consideration by the Company. The
conversion of any convertible securities of the Company shall not be deemed to
have been "effected without receipt of consideration." Such adjustment shall be
made by the Board, whose determination in that respect shall be final, binding
and conclusive.

     8.    Amendment and Termination of the Plan. The Board may suspend or
terminate the Plan at any time. In addition, the Board may, from time to time,
amend the Plan in any manner, but may not adopt any amendment without
Shareholder Approval if in the opinion of counsel to the Company, Shareholder
Approval is required by any Applicable Laws.

     9.    Conditions Upon Issuance of Shares.

           (a) Legal Compliance. Shares awarded pursuant to the Plan shall not
     be issued unless the issuance and delivery of such Shares comply with
     Applicable Laws. The inability of the Company to obtain authority from any
     regulatory body having jurisdiction, which authority is deemed by the
     Company's legal counsel to be necessary to the lawful issuance and sale of
     any Shares hereunder, shall relieve the Company of any

                                       2

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     liability in respect of the failure to issue such Shares as to which such
     requisite authority shall not have been obtained

           (b) Investment Representations. As a condition to the award of Shares
     under the Plan, the Board may require a Participant to represent and
     warrant at the time of the award that the Shares will be held only for
     investment and without any present intention to sell or distribute such
     Shares if, in the opinion of legal counsel to the Company, such a
     representation is necessary or appropriate.

     10.   Reservation of Shares. The Company shall at all times reserve and
keep available such number of authorized and unissued Shares or Shares in its
reserve of treasury stock as shall be sufficient to satisfy the requirements of
the Plan.

     11.   Right to Continued Board Membership. Participation in the Plan shall
not give any Participant any right to remain on the Board.

     12.   Construction. The titles and headings of the sections in the Plan are
for the convenience of reference only, and in the event of any conflict, the
text of the Plan, rather than such titles or headings, shall control.

     13.   Governing Law. The Plan shall be governed by and construed in
accordance with the laws of the State of Oklahoma, except as superseded by
applicable federal law.

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