Exercise of Options. Options awarded under the Plan shall be exercisable at such times and be subject to such restrictions and conditions as the Committee shall approve, either at the time of grant of such Options or pursuant to a general determination, and which need not be the same for all Participants. Each Option which is intended to qualify as an Incentive Stock Option pursuant to Section 422 of the Code, and each Option which is intended to qualify as another type of ISO which may subsequently be authorized by law, shall comply with the applicable provisions of the Code pertaining to such Options. The Committee shall determine the period of time during which an Option may be exercised, which such period shall be specifically set forth in the Award Agreement; provided, however, that no Option shall be exercisable after ten years from the date of grant (five years in the case of an ISO granted to an employee who is a Ten-Percent Shareholder on the date of grant).

Grant of Options. Subject to the provisions of the Plan, the Committee may # determine and designate from time to time those Participants to whom options are to be granted and the number of shares of Stock to be optioned to each employee; # authorize the granting of Incentive Stock Options, Nonqualified Stock Options, or combination of Incentive Stock Options and Nonqualified Stock Options; # determine the number of shares subject to each option; # determine the time or times when each Option shall become exercisable and the duration of the exercise period; and # determine whether and, if applicable, the manner in which each option shall contain stock appreciation rights; provided, however, that # no Incentive Stock Option shall be granted after the expiration of ten years from the ISO Effective Date as defined in Section 15 and # the aggregate Fair Market Value (determined as of the date the option is granted) of the Stock with respect to which Incentive Stock Options are exercisable for the first time by any employee during any calendar year (under all plans of Energen and its Subsidiaries) shall not exceed $100,000.

Each Option granted under this Plan shall be exercisable only during a Term commencing on the Grant Date, unless otherwise specified in the Grant Agreement, and ending (unless the Option shall have terminated earlier under other provisions of this Plan) on a date to be fixed by the Committee but in no event later than the tenth (10th) anniversary of the date it is granted to any Grantee; provided, however, that in the event the Grantee would otherwise be ineligible to receive an Incentive Stock Option by reason of the provisions of Sections 422(b)(6) and 424(d) of the Code (relating to stock ownership of more than 10%), an Option granted to such Grantee that is intended to be an Incentive Stock Option shall in no event be exercisable after the expiration of five (5) years from the date it is granted.

Exercise Term. Each Stock Option agreement shall state the period or periods of time within which the Stock Option may be exercised, in whole or in part, which shall be such period or periods of time as may be determined by the Committee, provided that no Stock Option shall be exercisable after ten years from the date of grant thereof (or, in the case of an Incentive Stock Option granted to an employee referred to in [Section 6.6(ii)] below, such term shall in no event exceed five years from the date on which such Incentive Stock Option is granted). The Committee shall have the power to permit an acceleration of previously established exercise upon such circumstances and subject to such terms and conditions as the Committee deems appropriate.

Option Agreement. Each Option grant shall be evidenced by an Agreement that shall specify the type of Option granted, the Option Price (as hereinafter defined), the duration of the Option, the number of Shares to which the Option pertains, any conditions imposed upon the exercisability of Options, and such other provisions as the Committee shall determine, provided, however, that, except for Options granted to Non-Employee Directors as part of a retainer, including annual or other grants made pursuant to a director compensation policy or arrangement, if the exercisability of an Option is subject solely to time-based conditions, the length of such period of time shall not be less than one year, subject to applicable provisions regarding accelerated vesting. The Agreement shall specify whether the Option is intended to be an Incentive Stock Option or Nonqualified Stock Option, provided, however, that if an Option is intended to be an Incentive Stock Option but fails to be such for any reason, it shall continue in full force and effect as a Nonqualified Stock Option. No Option may be exercised after the expiration of its term or, except as set forth in the Participant's stock option Agreement, after the termination of the Participant's employment or service. The Committee shall set forth in the Participant's Agreement when, and under what circumstances, an Option may be exercised after termination of the Participant's employment or period of service; provided that no Incentive Stock Option may be exercised after # three months from the Participant's termination of employment with the Company for reasons other than Disability or death, or # one year from the Participant's termination of employment on account of Disability or death. The Committee may, in its sole discretion, amend a previously granted Incentive Stock Option to provide for more liberal exercise provisions, provided, however, that if the Incentive Stock Option as amended no longer meets the requirements of Code Section 422, and, as a result the Option no longer qualifies for favorable federal income tax treatment under Code Section 422, the amendment shall not become effective without the written consent of the Participant.

DURATION OF OPTIONS. Each Option shall expire at such time as the Committee shall determine at the time of grant; provided, however, that in the case of an Incentive Stock Option, an Employee may not exercise such Incentive Stock Option after the date which is ten years (five years in the case of a Participant who owns more than ten percent of the voting power of the Company or a Subsidiary) after the date on which such Incentive Stock Option is granted.

Term. Subject to the Committee’s authority under Section 3(A) hereof, each Option and all rights and obligations thereunder shall expire on the date determined by the Committee and specified in the Award Agreement. The Committee shall be under no duty to provide terms of like duration for Options granted under the Plan. Notwithstanding the foregoing, no Option shall be exercisable after the expiration of ten (10) years from the date such Option was granted; provided, however, that if an Incentive Stock Option is granted to an employee who owns or is deemed to own (by reason of the attribution rules of Section 424(d) of the Code) more than 10% of the combined voting power of all classes of stock of the Company or any Subsidiary or Parent Corporation (within the meaning of Section 424(e) of the Code), the term of such Incentive Stock Option shall be no more than five years from the date of grant.

ISOs. The Committee may grant Options under the Plan that are intended to be ISOs. Such ISOs shall comply with the requirements of Section 422 of the Code (or any successor section thereto). No ISO may be granted to any Participant who at the time of such grant, owns more than ten percent of the total combined voting power of all classes of stock of the Company or of any Subsidiary, unless # the Option Price for such ISO is at least 110% of the Fair Market Value of a Share on the date the ISO is granted and # the date on which such ISO terminates is a date not later than the day preceding the fifth anniversary of the date on which the ISO is granted. Any Participant who disposes of Shares acquired upon the exercise of an ISO either # within two years after the date of grant of such ISO or # within one year after the transfer of such Shares to the Participant, shall notify the Company of such disposition and of the amount realized upon such disposition. All Options granted under the Plan are intended to be nonqualified stock options, unless the applicable Award agreement expressly states that the Option is intended to be an ISO. If an Option is intended to be an ISO, and if for any reason such Option (or portion thereof) shall not qualify as an ISO, then, to the extent of such nonqualification, such Option (or portion thereof) shall be regarded as a nonqualified stock option granted under the Plan; provided that such Option (or portion thereof) otherwise complies with the Plan's requirements relating to nonqualified stock options. In no event shall any member of the Committee, the Company or any of its Affiliates (or their respective employees, officers or directors) have any liability to any Participant (or any other person) due to the failure of an Option to qualify for any reason as an ISO.

Section # Exercisability, Expiration, and Term of Options. Subject to this Section 5.4 and Section 2.1, Options may be exercised at such times, in such amounts and subject to such restrictions as will be determined by the Committee, in its discretion. An Option may be exercised # at such time as the Option vests, or # if and to the extent set forth in the applicable Award Agreement, prior to the date on which the Option vests, provided that such Stock obtained will be subject to the same requirements that are applicable to grants of Restricted Stock set forth in Article 6 and in the applicable Award Agreement. After an Option is granted, the Committee, in its sole discretion, may accelerate the exercisability of the Option. Restrictions and conditions on the exercise of an Option need not be the same for each Award or for each Participant.