ACCELERATION OF EXERCISABILITY AND VESTING SECTION 30.

Vesting Acceleration. Effective as of March 24, 2020, Participants who cease to be Employees due to the sale of Pivotal LNG, Inc. will be deemed to be fully vested in their benefits and Accounts for all purposes hereunder.

Vesting Acceleration. Effective as of January 1, 2019, # Gulf Power Company will cease to be an Employing Company under the Plan; and # Participants who cease to be Employees due to the sale of Gulf Power Company will be deemed to be fully vested in their Accounts for all purposes hereunder.

Vesting Acceleration. Effective as of November 18, 2022, Participants who cease to be Employees due to the sale of Golden Triangle Storage, Inc. will be deemed to be fully vested in their Accounts for all purposes hereunder.

Vesting Acceleration. Effective as of September 22, 2023, Participants who cease to be Employees due to the sale of Central Valley Gas Storage, L.L.C. will be deemed to be fully vested in their Accounts for all purposes hereunder.

Vesting Acceleration. Effective as of July 1, 2021, Participants who cease to be Employees due to the sale of Sequent Energy Management, LP and Sequent Energy Canada Corp. will be deemed to be fully vested for all purposes hereunder.

acceleration of vesting and exercisability of all Incentive Equity, plus

Exercisability and Vesting. This Option shall become exercisable and vest ☐ twenty percent (20%) on the first anniversary of the Initial Vest Date and thereafter in a series of four (4) successive equal annual installments at the end of each of the next four (4) years (minimum for employees; vesting period may be longer officers, directors and Consultants), ☐ twenty-five percent (25%) on the first anniversary of the Initial Vest Date, and thereafter in a series of thirty-six (36) successive equal monthly installments, or ☐ in a series of forty-eight (48) successive equal monthly installments starting on the Initial Vest Date (or 2.0834% per month). Vesting at the end of each annual or monthly period shall occur only if Optionee is an employee, outside director or consultant, respectively, of the Corporation at the time that such vesting is to occur.

Acceleration of Vesting. In the event a Notice of Termination of an Involuntary Termination occurs during the CIC Period, and subject to the Executive signing, within 60 days following the Notice of Termination, a Release and the Release becoming effective and non-revocable within such 60-day period, all time based stock options and time based stock-based awards held by the Executive as of the date of the Notice of Termination, shall vest and become exercisable or nonforfeitable. Notwithstanding the foregoing, if, at the time of a Change in Control, the Company determines in its sole discretion, in reliance upon an opinion of counsel in form and substance satisfactory to the Company, that the acceleration in the prior sentence would not be permissible under applicable law, then in lieu of the acceleration in the prior sentence, all time based stock options and time based stock-based awards held by the Executive as of the date of such Change in Control, shall vest and become exercisable or nonforfeitable as of the date of such Change in Control.

Exercisability. Each Option shall be exercisable at such time or times and subject to such terms and conditions, including the attainment of performance goals, as shall be determined by the Administrator in the applicable Award Agreement. The Administrator may also provide that any Option shall be exercisable only in installments, and the Administrator may waive such installment exercise provisions at any time, in whole or in part, based on such factors as the Administrator may determine in its sole discretion.

The Participant’s vested interest in his Account will automatically be 100% upon the

If any “person” (as such term is used in Sections 13(d) and 14(d) of the Exchange Act), is or becomes the “beneficial owner” (as referred in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company representing 35% or more of the combined voting power of the Company’s then outstanding securities in one or more transactions, and the Board of Directors does not authorize or otherwise approve such acquisition, then the dates on which the Option becomes exercisable shall be accelerated and the Option will immediately and entirely vest, and the Holder will have the immediate right to purchase and/or receive any and all Common Stock subject to the Option on the terms set forth in this Agreement and Plan.

Vesting, Exercisability and Expiration. The Interests that are the subject of this Option Agreement shall vest upon the Effective Date and are exercisable respectively for a period of eighteen months, until January 19, 2019. All interests purchased pursuant to the Agreement will bear a Rule 144 restrictive legend and shall be Restricted Common Stock within the meaning of Rule 144 of the Securities Act, as that term is defined in Title 17 Part ​ of the Federal Code of Regulations. As such, the interests may not be resold in the public markets or transferred unless Company registers them under Section 5 of the Securities Act, or has received an opinion of counsel reasonably satisfactory to Company that such resale or transfer is exempt from the registration requirements of the Securities Act.

acceleration of vesting and exercisability of all equity and deferred cash incentive awards (the “Incentive Equity”) issued to Executive under the Plan. For purposes of this Agreement, “vesting” shall mean, in the case of any restricted stock issued under the Plan, ceasing to be subject to forfeiture, and payment dates of any deferred cash awards granted under the Plan are not accelerated as a result of the application of any such vesting acceleration provision of this Agreement, plus

Exercisability. Subject to [Section 5A(j)] hereof, Options shall be exercisable at such time or times and subject to such terms and conditions as shall be determined by the Committee at the time of grant; provided, however, that in the absence of any Option vesting periods designated by the Committee at the time of grant, Options shall vest and become exercisable as to one-third of the total number of shares subject to the Option on each of the first, second and third anniversaries of the date of grant; and provided further that no Options shall be exercisable until such time as any vesting limitation required by Section 16 of the Exchange Act, and related rules, shall be satisfied if such limitation shall be required for continued validity of the exemption provided under Rule 16b-3(d)(3).

Exercisability. Options granted under the Plan shall be exercisable at such time and upon such terms and conditions as may be determined by the Committee, but in no event shall an Option be exercisable more than ten years after the date it is granted, except as may be provided pursuant to Section 15.

Exercisability. Subject to Section 8(d), Options shall become exercisable in four equal annual installments commencing on the first anniversary date of the grant.

Exercisability. Except as provided in Article 11 and Article 14, # no Option shall be exercisable either in whole or in part prior to the first anniversary of the Award Date and # Options that vest solely by the passage of time shall not vest in full in less than three (3) years from the Award Date (but may vest pro-rata during such period). Thereafter, an Option shall be exercisable at such time or times and subject to such terms and conditions as shall be determined by the Committee and set forth in the Award Agreement.

Exercisability. Stock Options shall be exercisable to the extent vested; provided that the exercise of a Stock Option shall be subject to such additional terms and conditions, performance requirements, restrictions, forfeiture provisions, contingencies and limitations, if any, as shall be determined by the Administrator and listed in the applicable option agreement.

Exercisability. Stock Options shall be exercisable only to the extent the Participant is vested therein. Subject to Section 2.2(c), each Initial Grant of Stock Options under the Plan shall vest and become exercisable on the first anniversary of the Date of Grant. Subject to Section 2.2(c), each Annual Grant shall vest and become exercisable as follows: # for Annual Grants awarded before May 21, 2003, on the first anniversary of the Date of Grant; and # for Annual Grants awarded after May 21, 2003, in three equal annual installments, on the first, second and third anniversaries of the Date of Grant.