GEVO, INC. 2010 STOCK INCENTIVE PLAN Restricted Stock Unit Award Agreement

Exhibit 10.15

GEVO, INC.

2010 STOCK INCENTIVE PLAN

Restricted Stock Unit Award Agreement

You are hereby awarded Restricted Share Units (the “RSUs”) subject to the terms and conditions set forth in this Restricted Share Unit Award Agreement (the “Award Agreement” or “Award”), and in the Gevo, Inc. 2010 Stock Incentive Plan (the “Plan”). A copy of the Plan is attached as Exhibit A. Terms beginning with initial capital letters within this Agreement have the special meaning defined in the Plan (or in this Award Agreement, if defined herein).

This Award is conditioned on your execution of this Award Agreement within 20 (twenty) days after the Grant Date specified in Section 1 below. By executing this Award Agreement, you will be irrevocably agreeing that all of your rights under this Award will be determined solely and exclusively by reference to the terms and conditions of the Plan, subject to the provisions set forth below. As a result, you should not execute this Award Agreement until you have (i) carefully considered the terms and conditions of the Plan and this Award, and (ii) consulted with your personal legal and tax advisors about all of these documents.

provided that the number of Shares issued to you shall be reduced by a number of Shares having a Fair Market Value equal to the sum of (I) the par value per Share issued (as payment thereof), plus (II) the minimum statutory tax withholding required in connection with the vesting of your RSUs, and with cash being withheld from your pay for any additional withholding and employment taxes that applicable tax laws may require. Certificates shall not be delivered to you unless and until all applicable conditions of this Award have been satisfied, including all employment and tax-withholding obligations.

BY YOUR SIGNATURE BELOW, along with the signature of the Company’s representative, you and the Company agree that this Award is made under and governed by the terms and conditions of this Award Agreement and the Plan.

Exhibit A

GEVO, INC.

2010 STOCK INCENTIVE PLAN

Plan Document

Exhibit B

GEVO, INC.

2010 STOCK INCENTIVE PLAN

Section 83(b) Election Form

IF YOU WISH TO MAKE A SECTION 83(b) ELECTION, THERE ARE TWO CRITICAL REQUIREMENTS, PARTICULARLY:

If you receive Restricted Shares, you will remain subject to the terms, restrictions, and conditions of the underlying RSU Award Agreement. Such terms, restrictions, and conditions shall continue in effect until your Restricted Shares have become fully vested and replaced with unrestricted Shares.

Attached is an Internal Revenue Code Section 83(b) Election Form. In order to make the election, you must completely fill out the attached form and file one copy with the Internal Revenue Service office where you file your tax return. In addition, one copy of the statement also must be submitted with your income tax return for the taxable year in which you make this election. Finally, you also must submit a copy of the election form to the Company within 10 days after filing that election with the Internal Revenue Service. A Section 83(b) election normally cannot be revoked.

GEVO, INC.

2010 STOCK INCENTIVE PLAN

Election to Include Value of Restricted Shares in Gross Income

in Year of Transfer Under Internal Revenue Code Section 83(b)

Pursuant to Section 83(b) of the Internal Revenue Code, I hereby elect within 30 days after receiving the property described herein to be taxed immediately on its value specified in item 5 below.

The fair market value at the time of transfer (determined without regard to any restrictions other than restrictions which by their terms never will lapse) of the Restricted Shares with respect to which I am making this election is $             per share.

The amount I paid for the Restricted Shares is $             per share.

A copy of this statement has been furnished to my employer, Gevo, Inc.

Nothing contained herein shall be held to change any of the terms or conditions of the Award Agreement or the Plan.

Dated:                          , 20        .

Exhibit C

GEVO, INC.

2010 STOCK INCENTIVE PLAN

Deferral and Distribution Election

(if allowed under Section 1 of the RSU Award Agreement)

DEFERRAL AND DISTRIBUTION ELECTION (the “Election”), made this              day of             ,             , by me, as the undersigned participant in the above-referenced plan (the “Plan”) that is sponsored by Gevo, Inc. (the “Company”).

WHEREAS, I have received an Award of RSUs pursuant to an Award Agreement dated                          , 2010 (my “RSU Award”), and Section 1 of my RSU Award permits me to make a deferral election pursuant to Section 7(e) of the Plan, and I desire to make such an election subject to the terms and conditions hereof.

NOW, THEREFORE, I hereby elect as follows, and the Company agrees to be bound by the terms of my elections herein effective immediately, provided that, within 30 days after the Grant Date set forth in my RSU Award, I provide an executive officer of the Company (other than myself) with an original copy of my completed and fully-executed Election herein:

1. Defined Terms. Terms beginning with initial capital letters within this Election have the special meaning defined in the Plan or my RSU Award (or in this Election for definitions set forth herein).

2. Provisions Incorporated by Reference. The terms of my RSU Award are incorporated herein by reference.

3. Term of Election. This Election and the provisions of my RSU Award and the Plan constitute the entire agreement between me and the Company regarding this matter, and will continue in full force and effect until and unless I execute a superseding distribution election pursuant to Section 8(c)(ii) of the Plan.

4. RSUs being Deferred. I hereby elect to defer the receipt of              percent (    %) of the Shares that would otherwise be transferred to me more than 12 months after the date of this deferral election (or upon my earlier death). I understand and recognize that pursuant to this Election, the Company agrees to credit me on its books and records with DSUs pursuant to the terms and conditions of Section 8 of the Plan.

5. Settlement of DSUs. The Company agrees to settle my DSUs through issuing unrestricted Shares (with cash being paid in lieu of fractional Shares) in accordance with the earliest to occur of the events determined pursuant to my elections in the following schedule:

Deferral and Distribution Election

Page 2 of 3

Note: the term “Separation from Service” means the first to occur of a termination of your Continuous Service, or your “separation from service” within the meaning of Code Section 409A and associated rulings and regulations (with such separation being presumed to occur if based on a 50% or more reduction in your service, as determined thereunder).

6. Taxes. By signing this Election, you acknowledge that you shall be solely responsible for the satisfaction of any taxes that may arise pursuant to this Award (including taxes arising under Sections 409A or 4999 of the Code), and that neither the Company nor any of its officers, directors, employees, or other service providers shall have any obligation whatsoever to pay such taxes or to otherwise indemnify or hold you harmless from any or all of such taxes.

The Committee shall nevertheless have the discretion (i) to condition any issuance of Shares on my satisfaction of applicable employment and withholding taxes; and (ii) to unilaterally interpret this Election in any manner that (i) conforms with the requirements of Section 409A of the Code, (ii) that modifies or voids any election of mine to the extent it would violate Section 409A of the Code, and (iii) for any distribution election that would violate Section 409A of the Code, that

Deferral and Distribution Election

Page 3 of 3

defers distributions pursuant hereto until the earliest to occur of a distribution event that is allowable under Section 409A of the Code or any distribution event that is both allowable under Section 409A of the Code and is duly elected by me.

7. Effect of This Election. I recognize and agree that the Company will honor the terms and conditions of this Election, subject to any provisions of the Plan or my RSU Award that are not patently inconsistent herewith.

IN WITNESS WHEREOF, I have made this election on the day and year first above-written.

Exhibit D

GEVO, INC.

2010 STOCK INCENTIVE PLAN

Designation of Death Beneficiary

In connection with the Awards designated below that I have received pursuant to the Plan, I hereby designate the person specified below as the beneficiary upon my death of my interest in such Awards. This designation shall remain in effect until revoked in writing by me.

This beneficiary designation relates to any and all of my rights under the following Award or Awards:

I understand that this designation operates to entitle the above named beneficiary, in the event of my death, to any and all of my rights under the Award(s) designated above from the date this form is delivered to the Company until such date as this designation is revoked in writing by me, including by delivery to the Company of a written designation of beneficiary executed by me on a later date.

Exhibit E

GEVO, INC.

2010 STOCK INCENTIVE PLAN

Prospectus describing the Plan