Effective Date. The Plan shall become effective on the date it is approved by the requisite vote of the Company’s Board, subject to approval by the Company’s shareholders. If the shareholders fail to approve the Plan within 12 months of its adoption by the Board, any Awards already made will be null and void and no additional Awards shall be made.

Effective Date of the Plan. The Plan shall become effective as of February 4, 2018; provided that this Plan is approved and ratified by the shareholders of the Company no later than June 30, 2017. The Plan shall remain in effect until it has been terminated pursuant to Section 4.3.

Plan Effective Date and Term. This Plan, as amended and restated, was adopted by the Company to be effective on the Effective Date. No Awards may be granted under this Plan on and after May 19, 2026. However, any Award granted prior to such termination, and the authority of the Board or Committee to amend, alter, adjust, suspend, discontinue, or terminate any such Award or to waive any conditions or rights under such Award in accordance with the terms of this Plan, shall extend beyond such termination date until the final disposition of such Award.

The Plan shall be effective on January 20, 2011, the date it was approved by the Board of Directors of the Company (the “Effective Date”), subject to approval by the Company’s shareholders within the 12-month period immediately thereafter.

Effective Date of the Plan. The original effective date of the Plan was November 25, 1997, the date of its adoption by the Board, subject to approval by the shareholders of Energen holding not less than a majority of the shares present and voting at its January 1998 Annual Meeting. From time to time the Board has made amendments to the Plan that require shareholder approval for effectiveness and the shareholders of Energen have approved such amendments, each of which is deemed to be a re-adoption by the Board and re-approval by the shareholders of the Plan for the purposes of Code Section 422(b)(2). The “ISO Effective Date” is the earlier of the dates of such re-adoption and re-approval of the most recent shareholder approved Plan amendment or restatement.

Effective Date of the Plan. The Plan is effective on May 1, 2016.

Effective Date; Administration of Plan. This plan was originally effective October 31, 2003, was amended and restated effective for terminations occurring after November 1, 2011, and is further amended for clarification and restated as set forth herein, effective for terminations occurring after November 1, 2011. The plan may be amended or terminated at any time by the Committee or the Board, in their discretion. The Committee shall have full authority, in its discretion to interpret and apply the provisions of the plan, to establish rules and procedures

As between Assignor and Assignee, the effective date for this Assignment and Acceptance shall be ​, 20​ (the “Effective Date”); provided, that, the following conditions precedent have been satisfied on or before the Effective Date:

Participation Effective Date. The effective date of the Participant’s participation in the Plan is April 1, 2017.

Effective Date; Term. Except as provided in Section 3.4, this Agreement shall become effective upon the satisfaction of the Conditions Precedent in Section 3.2 (such date being the “Effective Date”) and, unless earlier terminated in accordance with the provisions of this Agreement, shall remain in full force and effect for a term ending upon the completion of startup and testing and the commencement of sale of electricity of both Units.