Exhibit 10.27  COBALT INTERNATIONAL ENERGY, INC. LONG TERM INCENTIVE PLAN  Restricted Stock Unit (RSU) Award Agreement  You have been granted an RSU (this Award) on the following terms and subject to the provisions of Attachment A and the Cobalt International Energy, Inc. Long Term Incentive Plan (the Plan).  Unless defined in this Award Agreement (including Attachment A, this Agreement), capitalized terms will have the meanings assigned to them in the Plan.  In the event of a conflict among the provisions of the Plan, this Agreement and any descriptive materials provided to you, the provisions of the Plan will prevail.  Participant

[               ]Number of   Shares Underlying Award

[           ]   Shares (the RSU Shares)Grant   Date

[           ]Vesting

Subject to   Section 4 and Section 5 of Attachment A, the RSU shall vest [insert   applicable vesting schedule].


Attachment A  Restricted Stock Unit Award Agreement Terms and Conditions  Grant to:[                ]  SECTION 1.  Grant of Award.Subject to the terms and conditions of the Plan and this Agreement, the Company hereby grants an RSU to the Participant on the Grant Date on the terms set forth on the cover page of this Agreement, as more fully described in this Attachment A.  This Award is granted under the Plan, which is incorporated herein by this reference and made a part of this Agreement.  SECTION 2.  Vesting and Conversion of Award.  (a)        Vesting.  This Award will vest (but will not convert into RSU Shares), within a range of 0% to 200% of the number of RSU Shares awarded herein, on the Scheduled Vesting Dates, provided that you continue to be employed on such dates, based on the achievement of Successful Wells drilled as set forth below.   In no event shall the Participant vest in an amount greater than 200% of the Award.  If the Participants Percentage of Award Vested is greater than 200%, the Percentage of Award Vested will be equal to 200%.  Successful Wells means wells (i) in the Gulf of Mexico, that have logged 100 or more feet (true vertical thickness) of potentially moveable hydrocarbons for a Miocene objective, or 250 or more feet for a Lower Tertiary objective, or for non-Miocene or Lower Tertiary objectives, such feet of net pay necessary to establish contingent resources or 3P reserves per an independent third party assessment and (iii) in West Africa, that have a test flow rate of greater than 5,000 barrels of oil per day (gross).  (i)    This Award will vest on [               ] in accordance with the following formula:  Number of   Successful   Wells Drilled in 2011
x
37.5%
=
Percentage of   Award Vested at   12/31/11  (ii)   This Award will vest on [               ] in accordance with the following formula (including the [               ] vesting):  Number of Successful   Wells Drilled in 2012
x
37.5%
+
Percentage of   Award Vested at   12/31/11
=
Percentage of   Award Vested at   12/31/12  (iii)  This Award will vest on [               ] in accordance with the following formula (including the [               ] and [               ] vesting):  2


Number of   Successful   Wells Drilled in 2013
x
25%
+
Percentage of   Award Vested at   12/31/12
=
Percentage of   Award Vested at   12/31/13  Notwithstanding Section 2(a)(i), (ii) and (iii), the RSU will vest only if as of [               ], the number of Successful Wells drilled between [               ] and [               ] divided by the total wells spud during the same period is 20% or greater.  A grid demonstrating the vesting provisions set forth above is included as Schedule I attached.  (b)        Conversion.  The vested portion of this Award shall convert into RSU Shares and be distributed to the Participant on [               ] (the Scheduled Distribution Date) in accordance with the following formula:  Percentage   of Award   Vested at [          ]
x
RSU Shares
=
Shares Distributed   to Participant  (c)        Other.  Notwithstanding the foregoing, this Award will vest and convert into RSU Shares as set forth in Section 4 and Section 5 in the event that the Participants employment terminates or a Change in Control occurs, respectively.  SECTION 3.  Dividend Equivalents.  If a dividend is paid on Shares during the period commencing on the Grant Date and ending on the date on which the RSU Shares are distributed to the Participant, the Participant shall be eligible to receive an amount equal to the amount of the dividend that the Participant would have received had the RSU Shares been distributed to the Participant as of the time at which such dividend is paid; it being understood that no such amount shall be payable with respect to any RSU Shares that are forfeited.  Such amount shall be paid to the Participant on the date on which the RSU Shares are distributed to the Participant in the same form (cash, Shares or other property) in which such dividend is paid to holders of Shares generally.  Any Shares that the Participant is eligible to receive pursuant to this Section 3 are referred to herein as Dividend Shares.  SECTION 4.  Termination of Service.  (a)        Death or Disability.  In the event of the Participants Termination of Service at any time due to the Participants death or Disability, the Service Condition shall be deemed to be satisfied as of the date of such termination and the unvested portion of this Award will continue to vest (within a range of 0% to 200%) pursuant to Section 2(a) as though the Participants Termination of Service had not occurred.  The vested portion of this Award will convert into RSU Shares and be distributed to the Participant (or the Participants estate) on the Scheduled Distribution Date.  3


(b)        Any Other Termination of Service.  In the event of the Participants Termination of Service at any time for any reason (other than due to the Participants death or Disability), the then unvested portion of this Award shall be forfeited in its entirety as of the date of such termination without any payment to the Participant.  The vested portion of this Award will convert into RSU Shares and be distributed to the Participant on the Scheduled Distribution Date.  SECTION 5.  Change in Control.  Upon a Change in Control prior to the Scheduled Distribution Date, the RSU shall fully vest at target (i.e. 100% of the RSU Shares), and the vested portion of this Award will convert into RSU Shares and be distributed to the Participant on the effective date of the Change in Control; provided that, if greater and if the number of Successful Wells drilled between [               ] and the date of the Change in Control divided by the total wells spud during the same period is 20% or greater, the percentage of this Award then vested will convert into RSU Shares and be distributed to the Participant on the effective date of the Change in Control.  SECTION 6.  Additional Terms and Conditions.  (a)        Issuance of Shares.  Upon distribution of the RSU Shares and, if applicable, any Dividend Shares, such Shares shall be evidenced by book-entry registration; provided, however, that the Committee may determine that such Shares shall be evidenced in such other manner as it deems appropriate, including the issuance of a stock certificate or certificates.  (b)        Stockholder Rights.  The Participant shall not have any rights of a stockholder, including voting rights, with respect to the RSU until the RSU Shares have been distributed to the Participant.  (c)        Transferability.  Unless and until the RSU Shares and, if applicable, any Dividend Shares are distributed to the Participant, this Award shall not be assigned, sold, transferred or otherwise be subject to alienation by the Participant.  (d)        Section 409A.  (i)    If any provision of this Agreement fails to comply with Section 409A of the Code or the regulations or Treasury guidance promulgated thereunder, or would result in a recognition of income for United States federal income tax purposes with respect to any amount payable under this Agreement before the date of payment, or the imposition of interest or additional tax pursuant to Section 409A of the Code, the Company reserves the right to reform such provision;providedthat the Company shall maintain, to the maximum extent practicable, the original intent of the applicable provision without violating the provisions of Section 409A of the Code.  (ii)   Notwithstanding anything else in this Agreement, if the Board considers the Participant to be one of the Companys specified  4


employees under Section 409A of the Code at the time of the Participants Termination of Service, any distribution that otherwise would be made to the Participant with respect to this Award as a result of such termination shall not be made until the date that is six months after such termination, except to the extent that earlier distribution would not result in the Participants incurring interest or additional tax under Section 409A of the Code.  (e)        Withholding.The Company may withhold any tax (or other governmental obligation) that becomes due with respect to the RSU upon vesting and conversion (as applicable), or any dividend or distribution thereon, and the Participant shall make arrangements satisfactory to the Company to enable the Company to satisfy all such withholding requirements.  Notwithstanding the foregoing, the Committee may permit, in its sole discretion, the Participant to satisfy any such withholding requirement by transferring to the Company pursuant to such procedures as the Committee may require, effective as of the date on which a withholding obligation arises, a number of vested Shares owned and designated by the Participant having an aggregate fair market value as of such date that is equal to the minimum amount required to be withheld.  If the Committee permits the Participant to satisfy any such withholding requirement pursuant to the preceding sentence, the Company shall remit to the Internal Revenue Service and appropriate state and local revenue agencies, for the credit of the Participant, an amount of cash withholding equal to the fair market value of the Shares transferred to the Company as provided above.  SECTION 7.  Miscellaneous Provisions.  (a)        Notices.  All notices, requests and other communications under this Agreement shall be in writing and shall be delivered in person (by courier or otherwise), mailed by certified or registered mail, return receipt requested, or sent by facsimile transmission, as follows:  if to the Company, to:  Cobalt International Energy, Inc. Two Post Oak Central 1980 Post Oak Blvd., Suite 1200 Houston, TX 77056 Attention: General Counsel Facsimile: 713-579-9184  if to the Participant, to the address that the Participant most recently provided to the Company,  or to such other address or facsimile number as such party may hereafter specify for the purpose by notice to the other parties hereto.  All such notices, requests and other communications shall be deemed received on the date of receipt by the  5


recipient thereof if received prior to 5:00 p.m. on a business day in the place of receipt.  Otherwise, any such notice, request or communication shall be deemed received on the next succeeding business day in the place of receipt.  (b)        Entire Agreement.  This Agreement, the Plan, and any other agreements schedules, exhibits and other documents referred to herein or therein, constitute the entire agreement and understanding between the parties in respect of the subject matter hereof and supersede all prior and contemporaneous arrangements, agreements and understandings, both oral and written, whether in term sheets, presentations or otherwise, between the parties with respect to the subject matter hereof.  (c)        Amendment; Waiver.  No amendment or modification of any provision of this Agreement shall be effective unless signed in writing by or on behalf of the Company and the Participant, except that the Company may amend or modify this Agreement without the Participants consent in accordance with the provisions of the Plan or as otherwise set forth in this Agreement.  No waiver of any breach or condition of this Agreement shall be deemed to be a waiver of any other or subsequent breach or condition whether of like or different nature.  Any amendment or modification of or to any provision of this Agreement, or any waiver of any provision of this Agreement, shall be effective only in the specific instance and for the specific purpose for which made or given.  (d)        Assignment.  Neither this Agreement nor any right, remedy, obligation or liability arising hereunder or by reason hereof shall be assignable by the Participant.  (e)        Successors and Assigns; No Third Party Beneficiaries.  This Agreement shall inure to the benefit of and be binding upon the Company and the Participant and their respective heirs, successors, legal representatives and permitted assigns.  Nothing in this Agreement, expressed or implied, is intended to confer on any person other than the Company and the Participant, and their respective heirs, successors, legal representatives and permitted assigns, any rights, remedies, obligations or liabilities under or by reason of this Agreement.  (f)         Counterparts.  This Agreement may be signed in any number of counterparts, each of which shall be an original, with the same effect as if the signatures thereto and hereto were upon the same instrument.  (g)        Participant Undertaking.  The Participant agrees to take whatever additional action and execute whatever additional documents the Company may deem necessary or advisable to carry out or give effect to any of the obligations or restrictions imposed on either the Participant or the RSU pursuant to the provisions of this Agreement.  (h)        Plan.  The Participant acknowledges and understands that material definitions and provisions concerning this Award and the Participants rights and  6


obligations with respect thereto are set forth in the Plan.  The Participant has read carefully, and understands, the provisions of the Plan.  (i)         Governing Law.  The Agreement shall be governed by the laws of the State of Delaware, without application of the conflicts of law principles thereof.  (j)         No Right to Continued Service.  The granting of the RSU evidenced hereby and this Agreement shall impose no obligation on the Company or any Affiliate to continue the service of the Participant and shall not lessen or affect the right that the Company or any Affiliate may have to terminate the service of such Participant.  (k)        Jurisdiction.  The parties hereto agree that any suit, action or proceeding seeking to enforce any provision of, or based on any matter arising out of or in connection with, this Agreement or the transactions contemplated hereby (whether brought by any party or any of its affiliates or against any party or any of its affiliates) shall be brought in the Delaware Chancery Court or, if such court shall not have jurisdiction, any federal court located in the State of Delaware or other Delaware state court, and each of the parties hereby irrevocably consents to the jurisdiction of such courts (and of the appropriate appellate courts therefrom) in any such suit, action or proceeding and irrevocably waives, to the fullest extent permitted by law, any objection that it may now or hereafter have to the laying of the venue of any such suit, action or proceeding in any such court or that any such suit, action or proceeding brought in any such court has been brought in an inconvenient forum.  Process in any such suit, action or proceeding may be served on each party anywhere in the world, whether within or without the jurisdiction of any such court.  Without limiting the foregoing, each party agrees that service of process on such party as provided in Section 4(a) shall be deemed effective service of process on such party.  (l)         WAIVER OF JURY TRIAL.  EACH OF THE PARTIES HERETO IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.  7


IN WITNESS WHEREOF, the parties have executed this Agreement as of the day and year first written above.  COBALT INTERNATIONAL   ENERGY, INC.By:Name:Title:[Participant]  8


SCHEDULE I  RSU Award Vesting Table*    
 * This Award will vest only if as of [              ] the number of Successful Wells drilled between [              ] and [              ] divided by the total wells spud during the same period is 20% or greater.  9