Document:

Exhibit 10.6

 

Execution Version

 

INDEMNIFICATION
AGREEMENT

 

THIS
INDEMNIFICATION AGREEMENT (this “Agreement”) is made as of [          ],
2019, by and between TORTOISE ACQUISITION CORP., a Delaware corporation (the “Company”), and
[          ] (“Indemnitee”).

 

RECITALS

 

WHEREAS,
highly competent persons have become more reluctant to serve publicly-held corporations as directors or officers unless they are
provided with adequate protection through insurance or adequate indemnification against inordinate risks of claims and actions
against them arising out of their service to and activities on behalf of such corporations;

 

WHEREAS,
the board of directors of the Company (the “Board”) has determined that, in order to attract and retain
qualified individuals as directors and officers, the Company will attempt to maintain on an ongoing basis, at its sole expense,
liability insurance to protect such persons serving the Company and its subsidiaries from certain liabilities. Although the furnishing
of such insurance has been a customary and widespread practice among United States-based corporations and other business enterprises,
the Company believes that, given current market conditions and trends, such insurance may be available to it in the future only
at higher premiums and with more exclusions. At the same time, directors and officers are being increasingly subjected to expensive
and time-consuming litigation. The amended and restated certificate of incorporation (the “Charter”)
and the bylaws (the “Bylaws”) of the Company require indemnification of the officers and directors of
the Company. Indemnitee may also be entitled to indemnification pursuant to applicable provisions of the Delaware General Corporation
Law (“DGCL”). The Charter, Bylaws and the DGCL expressly provide that the indemnification provisions
set forth therein are not exclusive, and thereby contemplate that contracts may be entered into between the Company and members
of the board of directors, officers and other persons with respect to indemnification, hold harmless, exoneration, advancement
and reimbursement rights;

 

WHEREAS,
the uncertainties relating to such insurance and to indemnification have increased the difficulty of attracting and retaining
such persons;

 

WHEREAS,
the Board has determined that the increased difficulty in attracting and retaining such persons is detrimental to the best interests
of the Company’s stockholders and that the Company should act to assure such persons that there will be increased certainty
of such protection in the future;

 

WHEREAS,
it is reasonable, prudent and necessary for the Company contractually to obligate itself to indemnify, hold harmless, exonerate
and to advance Expenses on behalf of such persons to the fullest extent permitted by applicable law so that they will serve or
continue to serve the Company free from undue concern that they will not be so protected against liabilities;

 

WHEREAS,
this Agreement is a supplement to and in furtherance of the Charter and Bylaws and any resolutions adopted pursuant thereto, and
shall not be deemed a substitute therefor, nor to diminish or abrogate any rights of Indemnitee thereunder; and

 

WHEREAS,
Indemnitee may not be willing to serve as an officer or director without adequate protection, and the Company desires Indemnitee
to serve in such capacity. Indemnitee is willing to serve or continue to serve for or on behalf of the Company on the condition
that Indemnitee be so indemnified.

 

     

     

    

 

NOW,
THEREFORE, in consideration of the premises and the covenants contained herein, the Company and Indemnitee do hereby covenant
and agree as follows:

 

TERMS
AND CONDITIONS

 

1.
SERVICES TO THE COMPANY. In consideration of the Company’s covenants and obligations hereunder, Indemnitee will
serve or continue to serve as an officer, director or key employee of the Company for so long as Indemnitee is duly elected or
appointed or until Indemnitee tenders Indemnitee’s resignation or until Indemnitee is removed. The foregoing notwithstanding,
this Agreement shall continue in full force and effect after Indemnitee has ceased to serve as a director or officer of the Company,
as provided in Section 17. This Agreement, however, shall not impose any obligation on Indemnitee or the Company to
continue Indemnitee’s service to the Company beyond any period otherwise required by law or by other agreements or commitments
of the parties, if any.

 

2.
DEFINITIONS. As used in this Agreement:

 

(a)
References to “agent” shall mean any person who is or was a director, officer or employee of the Company
or a subsidiary of the Company or other person authorized by the Company to act for the Company, to include such person serving
in such capacity as a director, officer, employee, fiduciary or other official of another corporation, partnership, limited liability
company, joint venture, trust or other enterprise at the request of, for the convenience of, or to represent the interests of
the Company or a subsidiary of the Company.

 

(b)
The terms “Beneficial Owner” and “Beneficial Ownership” shall have the meanings
set forth in Rule 13d-3 promulgated under the Exchange Act (as defined below) as in effect on the date hereof.

 

(c)
A “Change in Control” shall be deemed to occur upon the earliest to occur after the date of this Agreement
of any of the following events:

 

(i) Acquisition of Stock by Third Party. Other than Tortoise Sponsor LLC, a Delaware limited liability company (the
“Sponsor”), any Person (as defined below) is or becomes the Beneficial Owner, directly or indirectly,
of securities of the Company representing fifteen percent (15%) or more of the combined voting power of the Company’s then
outstanding securities entitled to vote generally in the election of directors, unless (1) the change in the relative Beneficial
Ownership of the Company’s securities by any Person results solely from a reduction in the aggregate number of outstanding
shares of securities entitled to vote generally in the election of directors, or (2) such acquisition was approved in advance
by the Continuing Directors (as defined below) and such acquisition would not constitute a Change in Control under part (iii)
of this definition;

 

(ii)
Change in Board of Directors. Individuals who, as of the date hereof, constitute the Board, and any new director
whose election by the Board or nomination for election by the Company’s stockholders was approved by a vote of at least
two thirds of the directors then still in office who were directors on the date hereof or whose election for nomination for election
was previously so approved (collectively, the “Continuing Directors”), cease for any reason to constitute
at least a majority of the members of the Board;

 

(iii)
Corporate Transactions. The effective date of a reorganization, merger, asset acquisition, stock (or other equity
interest) purchase or exchange, consolidation or other business combination involving the Company (a “Business Combination”),
in each case, unless, following such Business Combination: (1) all or substantially all of the individuals and entities who
were the Beneficial Owners of securities entitled to vote generally in the election of directors immediately prior to such Business
Combination beneficially own, directly or indirectly, more than fifty-one percent (51%) of the combined voting power of the then
outstanding securities of the Company entitled to vote generally in the election of directors resulting from such Business Combination
(including, without limitation, a corporation which as a result of such transaction owns the Company or all or substantially all
of the Company’s assets either directly or through one or more Subsidiaries (as defined below)) in substantially the same
proportions as their ownership immediately prior to such Business Combination, of the securities entitled to vote generally in
the election of directors; (2) other than an affiliate of the Sponsor, no Person (excluding any corporation resulting from
such Business Combination) is the Beneficial Owner, directly or indirectly, of fifteen percent (15%) or more of the combined voting
power of the then outstanding securities entitled to vote generally in the election of directors of the surviving corporation
except to the extent that such ownership existed prior to the Business Combination; and (3) at least a majority of the Board
of Directors of the corporation resulting from such Business Combination were Continuing Directors at the time of the execution
of the initial agreement, or of the action of the Board of Directors, providing for such Business Combination;

 

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(iv)
Liquidation. The approval by the stockholders of the Company of a complete liquidation of the Company or an agreement
or series of agreements for the sale or disposition by the Company of all or substantially all of the Company’s assets,
other than factoring the Company’s current receivables or escrows due (or, if such stockholder approval is not required,
the decision by the Board to proceed with such a liquidation, sale or disposition in one transaction or a series of related transactions);
or

 

(v)
Other Events. There occurs any other event of a nature that would be required to be reported in response to Item 6(e)
of Schedule 14A of Regulation 14A (or any successor rule) (or a response to any similar item on any similar schedule
or form) promulgated under the Exchange Act (as defined below), whether or not the Company is then subject to such reporting requirement.

 

(d)
“Corporate Status” describes the status of a person who is or was a director, officer, trustee, general
partner, manager, managing member, fiduciary, employee or agent of the Company or of any other Enterprise (as defined below) which
such person is or was Serving at the Request of the Company.

 

(e)
“Delaware Court” shall mean the Court of Chancery of the State of Delaware.

 

(f)
“Disinterested Director” shall mean a director of the Company who is not and was not a party to the
Proceeding (as defined below) in respect of which indemnification is sought by Indemnitee.

 

(g)
“Enterprise” shall mean the Company and any other corporation, constituent corporation (including any
constituent of a constituent) absorbed in a consolidation or merger to which the Company (or any of its wholly owned subsidiaries)
is a party, limited liability company, partnership, joint venture, trust, employee benefit plan or other enterprise of which Indemnitee
is or was Serving at the Request of the Company as a director, officer, trustee, manager, general partner, managing member, fiduciary,
employee or agent.

 

(h)
“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended.

 

(i)
“Expenses” shall include all reasonable direct and indirect costs, fees and expenses of any type or
nature whatsoever, including, without limitation, all reasonable attorneys’ fees and costs, retainers, court costs, transcript
costs, fees of experts, witness fees, travel expenses, fees of private investigators and professional advisors, duplicating costs,
printing and binding costs, telephone charges, postage, delivery service fees, fax transmission charges, secretarial services
and all other disbursements, obligations or expenses in connection with prosecuting, defending, preparing to prosecute or defend,
investigating, being or preparing to be a witness in, settlement or appeal of, or otherwise participating in, a Proceeding (as
defined below), including reasonable compensation for time spent by Indemnitee for which he or she is not otherwise compensated
by the Company or any third party. “Expenses” also shall include expenses incurred in connection with any appeal resulting
from any Proceeding (as defined below), including without limitation the principal, premium, security for, and other costs relating
to any cost bond, supersedeas bond, or other appeal bond or its equivalent. “Expenses,” however, shall not include
amounts paid in settlement by Indemnitee or the amount of judgments or Fines against Indemnitee.

 

(j)
“Fines” shall include all fines, including without limitation any excise tax assessed on Indemnitee
with respect to any employee benefit plan and any fines imposed on Indemnitee by any governmental authority.

 

(k)
“Independent Counsel” shall mean a law firm or a member of a law firm with significant experience in
matters of corporation law and that neither presently is, nor in the past five years has been, retained to represent: (i) the
Company or Indemnitee in any matter material to either such party (other than with respect to matters concerning Indemnitee under
this Agreement, or of other indemnitees under similar indemnification agreements) or (ii) any other party to the Proceeding
giving rise to a claim for indemnification hereunder. Notwithstanding the foregoing, the term “Independent Counsel”
shall not include any person who, under the applicable standards of professional conduct then prevailing, would have a conflict
of interest in representing either the Company or Indemnitee in an action to determine Indemnitee’s rights under this Agreement.

 

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(l) “Person” shall have the meaning as set forth in Sections 13(d) and 14(d) of the Exchange
Act as in effect on the date hereof; provided, however, that “Person” shall exclude: (i) the Company;
(ii) any Subsidiaries (as defined below) of the Company; (iii) any employment benefit plan of the Company or of a Subsidiary
(as defined below) of the Company or of any corporation owned, directly or indirectly, by the stockholders of the Company in substantially
the same proportions as their ownership of stock of the Company; and (iv) any trustee or other fiduciary holding securities
under an employee benefit plan of the Company or of a Subsidiary (as defined below) of the Company or of a corporation owned directly
or indirectly by the stockholders of the Company in substantially the same proportions as their ownership of stock of the Company.

 

(m)
“Proceeding” shall include any threatened, pending or completed action, suit, arbitration, mediation,
alternate dispute resolution mechanism, investigation, inquiry, administrative hearing or any other actual, threatened or completed
proceeding, whether brought in the right of the Company or otherwise and whether of a civil (including intentional or unintentional
tort claims), criminal, administrative, legislative or investigative nature, in which Indemnitee was, is, will or might be involved
as a party, potential party, non-party witness or otherwise by reason of the fact that Indemnitee is or was a director or officer
of the Company, by reason of any action (or failure to act) taken by Indemnitee or of any action (or failure to act) on Indemnitee’s
part while acting as a director or officer of the Company, or by reason of the fact that Indemnitee is or was Serving at the Request
of the Company as a director, officer, trustee, general partner, managing member, fiduciary, employee or agent of any other Enterprise,
in each case whether or not serving in such capacity at the time any liability or Expense is incurred for which indemnification,
reimbursement or advancement of Expenses can be provided under this Agreement.

 

(n)
“Serving at the Request of the Company” shall include any service as a director, officer, employee,
agent or fiduciary of the Company which imposes duties on, or involves services by, such director, officer, employee, agent or
fiduciary with respect to an employee benefit plan, its participants or beneficiaries; and if Indemnitee acted in good faith and
in a manner Indemnitee reasonably believed to be in the best interests of the participants and beneficiaries of an employee benefit
plan, Indemnitee shall be deemed to have acted in a manner “not opposed to the best interests of the Company” as referred
to in this Agreement.

 

(o)
“Subsidiary,” with respect to any Person, shall mean any corporation, limited liability company, partnership,
joint venture, trust or other entity of which a majority of the voting power of the voting equity securities or equity interest
is owned, directly or indirectly, by that Person.

 

3.
INDEMNITY IN THIRD-PARTY PROCEEDINGS. To the fullest extent permitted by applicable law, the Company shall indemnify,
hold harmless and exonerate Indemnitee in accordance with the provisions of this Section 3 if Indemnitee was, is,
or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding, other than a
Proceeding by or in the right of the Company to procure a judgment in its favor by reason of Indemnitee’s Corporate Status.
Pursuant to this Section 3, Indemnitee shall be indemnified, held harmless and exonerated against all Expenses, judgments,
liabilities, Fines, penalties and amounts paid in settlement (including all interest, assessments and other charges paid or payable
in connection with or in respect of such Expenses, judgments, Fines, penalties and amounts paid in settlement) actually, and reasonably
incurred by Indemnitee or on Indemnitee’s behalf in connection with such Proceeding or any claim, issue or matter therein,
if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to be in or not opposed to the best interests
of the Company and, in the case of a criminal Proceeding, had no reasonable cause to believe that Indemnitee’s conduct was
unlawful.

 

4.
INDEMNITY IN PROCEEDINGS BY OR IN THE RIGHT OF THE COMPANY. To the fullest extent permitted by applicable law, the
Company shall indemnify, hold harmless and exonerate Indemnitee in accordance with the provisions of this Section 4
if Indemnitee was, is, or is threatened to be made, a party to or a participant (as a witness, deponent or otherwise) in any Proceeding
by or in the right of the Company to procure a judgment in its favor by reason of Indemnitee’s Corporate Status. Pursuant
to this Section 4, Indemnitee shall be indemnified, held harmless and exonerated against all Expenses actually and
reasonably incurred by Indemnitee or on Indemnitee’s behalf in connection with such Proceeding or any claim, issue or matter
therein, if Indemnitee acted in good faith and in a manner Indemnitee reasonably believed to be in or not opposed to the best
interests of the Company. Notwithstanding the foregoing, no indemnification, hold harmless or exoneration for Expenses shall be
made under this Section 4 in respect of any claim, issue or matter as to which Indemnitee shall have been finally
adjudged by a court to be liable to the Company, unless and only to the extent that any court in which the Proceeding was brought
or the Delaware Court shall determine upon application that, despite the adjudication of liability but in view of all the circumstances
of the case, Indemnitee is fairly and reasonably entitled to indemnification, to be held harmless or to exoneration.

 

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5.
INDEMNIFICATION FOR EXPENSES OF A PARTY WHO IS WHOLLY OR PARTLY SUCCESSFUL. Notwithstanding any other provision of
this Agreement (other than the provisions of Section 27 hereof), to the extent that Indemnitee was or is, by reason of
Indemnitee’s Corporate Status, a party to (or a participant in) and is successful, on the merits or otherwise, in any Proceeding
or in defense of any claim, issue or matter therein, in whole or in part, the Company shall, to the fullest extent permitted by
applicable law, indemnify, hold harmless and exonerate Indemnitee against all Expenses actually and reasonably incurred by Indemnitee
in connection therewith. If Indemnitee is not wholly successful in such Proceeding but is successful, on the merits or otherwise,
as to one or more but less than all claims, issues or matters in such Proceeding, the Company shall, to the fullest extent permitted
by applicable law, indemnify, hold harmless and exonerate Indemnitee against all Expenses actually and reasonably incurred by
Indemnitee or on Indemnitee’s behalf in connection with each successfully resolved claim, issue or matter. If Indemnitee
is not wholly successful in such Proceeding, the Company also shall, to the fullest extent permitted by applicable law, indemnify,
hold harmless and exonerate Indemnitee against all Expenses reasonably incurred in connection with a claim, issue or matter related
to any claim, issue or matter on which Indemnitee was successful. For purposes of this Section 5 and without limitation,
the termination of any claim, issue or matter in such a Proceeding by dismissal, with or without prejudice, shall be deemed to
be a successful result as to such claim, issue or matter.

 

6.
INDEMNIFICATION FOR EXPENSES OF A WITNESS. Notwithstanding any other provision of this Agreement (other than the provisions
of Section 27 hereof), to the extent that Indemnitee is, by reason of Indemnitee’s Corporate Status, a witness or
deponent in any Proceeding to which Indemnitee was or is not a party or threatened to be made a party, Indemnitee shall, to the
fullest extent permitted by applicable law, be indemnified, held harmless and exonerated against all Expenses actually and reasonably
incurred by Indemnitee or on Indemnitee’s behalf in connection therewith.

 

7.
CONTRIBUTION IN THE EVENT OF JOINT LIABILITY.

 

(a)
To the fullest extent permissible under applicable law, if the indemnification, hold harmless and/or exoneration rights provided
for in this Agreement are unavailable to Indemnitee in whole or in part for any reason whatsoever, the Company, in lieu of indemnifying,
holding harmless or exonerating Indemnitee, shall pay, in the first instance, the entire amount incurred by Indemnitee, whether
for judgments, liabilities, Fines, penalties, amounts paid or to be paid in settlement and/or for Expenses, in connection with
any Proceeding without requiring Indemnitee to contribute to such payment, and the Company hereby waives and relinquishes any
right of contribution it may have at any time against Indemnitee.

 

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(b)
The Company shall not enter into any settlement of any Proceeding in which the Company is jointly liable with Indemnitee (or would
be if joined in such Proceeding) unless such settlement provides for a full and final release of all claims asserted against Indemnitee.

 

(c)
The Company hereby agrees to fully indemnify, hold harmless and exonerate Indemnitee from any claims for contribution which may
be brought by officers, directors or employees of the Company other than Indemnitee who may be jointly liable with Indemnitee.

 

8.
EXCLUSIONS. Notwithstanding any provision in this Agreement, the Company shall not be obligated under this Agreement
to make any indemnification, advance of Expenses, hold harmless or exoneration payment in connection with any claim made against
Indemnitee:

 

(a)
for which payment has actually been received by or on behalf of Indemnitee under any insurance policy, contract, agreement or
other indemnity or advancement provision or otherwise, except (i) with respect to any excess beyond the amount actually received
under any insurance policy, contract, agreement, other indemnity or advancement provision or otherwise and (ii) as provided in
Section 9 hereof;

 

(b)
for an accounting of profits made from the purchase and sale (or sale and purchase) by Indemnitee of securities of the Company
within the meaning of Section 16(b) of the Exchange Act (or any successor rule) or similar provisions of state statutory
law or common law; or

 

(c)
except as otherwise provided in Sections 14(f)-(g) hereof, prior to a Change in Control, in connection with
any Proceeding (or any part of any Proceeding) initiated by Indemnitee, including any Proceeding (or any part of any Proceeding)
initiated by Indemnitee against the Company or its directors, officers, employees or other indemnitees, unless (i) the Board
authorized the Proceeding (or any part of any Proceeding) prior to its initiation or (ii) the Company provides the indemnification,
advance of Expenses, hold harmless or exoneration payment, in its sole discretion, pursuant to the powers vested in the Company
under applicable law. Indemnitee shall seek payments or advances from the Company only to the extent that such payments or advances
are unavailable from any insurance policy of the Company covering Indemnitee.

 

9.
INDEMNITOR OF FIRST RESORT. The Company hereby acknowledges that Indemnitee may have certain rights to indemnification,
advancement of Expenses and/or insurance provided by one or more Persons with whom or which Indemnitee may be associated (collectively,
the “Alternative Indemnitors”). The Company hereby agrees (i) that it is the indemnitor of first resort
(i.e., its obligations to Indemnitee are primary and any obligation of the Alternative Indemnitors to advance Expenses or to provide
indemnification for the same Expenses or liabilities incurred by Indemnitee are secondary), (ii) that it shall be required to
advance the full amount of Expenses incurred by Indemnitee and shall be liable for the full amount of all Expenses, judgments,
penalties, Fines and amounts paid in settlement to the extent legally permitted and as required by the terms of this Agreement
and the Certificate of Incorporation or Bylaws of the Company (or any other agreement between the Company and Indemnitee), without
regard to any rights Indemnitee may have against the Alternative Indemnitors, and, (iii) that it irrevocably waives, relinquishes
and releases the Alternative Indemnitors from any and all claims against the Alternative Indemnitors for contribution, subrogation
or any other recovery of any kind in respect thereof. The Company further agrees that no advancement or payment by the Alternative
Indemnitors on behalf of Indemnitee with respect to any claim for which Indemnitee has sought indemnification from the Company
shall affect the foregoing and the Alternative Indemnitors shall have a right of contribution and/or be subrogated to the extent
of such advancement or payment to all of the rights of recovery of Indemnitee against the Company. The Company and Indemnitee
agree that the Alternative Indemnitors are express third party beneficiaries of the terms of this Section 9.

 

10.
ADVANCES OF EXPENSES; DEFENSE OF CLAIM.

 

(a)
Notwithstanding any provision of this Agreement to the contrary (other than the provisions of Section 27 hereof), and to
the fullest extent not prohibited by applicable law, the Company shall pay the Expenses incurred by Indemnitee (or reasonably
expected by Indemnitee to be incurred by Indemnitee within three (3) months) in connection with any Proceeding within ten (10)
days after the receipt by the Company of a statement or statements requesting such advances from time to time, prior to the final
disposition of any Proceeding. Advances shall, to the fullest extent permitted by law, be unsecured and interest free. Advances
shall, to the fullest extent permitted by law, be made without regard to Indemnitee’s ability to repay the Expenses and
without regard to Indemnitee’s ultimate entitlement to be indemnified, held harmless or exonerated under the other provisions
of this Agreement. Advances shall include any and all reasonable Expenses incurred pursuing a Proceeding to enforce this right
of advancement, including Expenses incurred preparing and forwarding statements to the Company to support the advances claimed.
To the fullest extent required by applicable law, such payments of Expenses in advance of the final disposition of the Proceeding
shall be made only upon the Company’s receipt of an undertaking, by or on behalf of Indemnitee, to repay the advanced amounts
to the extent that it is ultimately determined that Indemnitee is not entitled to be indemnified, held harmless or exonerated
by the Company under the provisions of this Agreement, the Charter, the Bylaws, applicable law or otherwise. This Section 10(a) shall
not apply to any claim made by Indemnitee for which an indemnification, advance of Expenses, hold harmless or exoneration payment
is excluded pursuant to Section 8.

 

(b)
The Company will be entitled to participate in the Proceeding at its own expense.

 

(c)
The Company shall not settle any action, claim or Proceeding (in whole or in part) which would impose any Expense, judgment, liability,
Fine, penalty or limitation on Indemnitee without Indemnitee’s prior written consent.

 

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11.
PROCEDURE FOR NOTIFICATION AND APPLICATION FOR INDEMNIFICATION.

 

(a)
Indemnitee agrees to promptly notify the Company in writing upon being served with any summons, citation, subpoena, complaint,
indictment, information or other document relating to any Proceeding, claim, issue or matter therein which may be subject to indemnification,
hold harmless or exoneration rights, or advancement of Expenses covered hereunder. The failure of Indemnitee to so notify the
Company shall not relieve the Company of any obligation which it may have to Indemnitee under this Agreement, or otherwise.

 

(b)
Indemnitee may deliver to the Company a written application to indemnify, hold harmless or exonerate Indemnitee in accordance
with this Agreement. Such application(s) may be delivered from time to time and at such time(s) as Indemnitee deems appropriate
in Indemnitee’s sole discretion. Following such a written application for indemnification by Indemnitee, Indemnitee’s
entitlement to indemnification shall be determined according to Section 12(a) of this Agreement.

 

12.
PROCEDURE UPON APPLICATION FOR INDEMNIFICATION.

 

(a)
A determination, if required by applicable law, with respect to Indemnitee’s entitlement to indemnification shall be made
in the specific case by one of the following methods, which shall be at the election of Indemnitee: (i) by a majority vote
of the Disinterested Directors, even though less than a quorum of the Board or (ii) by Independent Counsel in a written opinion
to the Board, a copy of which shall be delivered to Indemnitee. The Company will promptly advise Indemnitee in writing with respect
to any determination that Indemnitee is or is not entitled to indemnification, including a description of any reason or basis
for which indemnification has been denied. If it is so determined that Indemnitee is entitled to indemnification, payment to Indemnitee
shall be made within ten (10) days after such determination. Indemnitee shall reasonably cooperate with the person, persons or
entity making such determination with respect to Indemnitee’s entitlement to indemnification, including providing to such
person, persons or entity upon reasonable advance request any documentation or information which is not privileged or otherwise
protected from disclosure and which is reasonably available to Indemnitee and reasonably necessary to such determination. Any
costs or Expenses (including reasonable attorneys’ fees and disbursements) incurred by Indemnitee in so cooperating with
the person, persons or entity making such determination shall be borne by the Company (irrespective of the determination as to
Indemnitee’s entitlement to indemnification) and the Company hereby agrees to indemnify and to hold Indemnitee harmless
therefrom.

 

(b)
In the event the determination of entitlement to indemnification is to be made by Independent Counsel pursuant to Section 12(a)
hereof, the Independent Counsel shall be selected as provided in this Section 12(b). The Independent Counsel shall
be selected by Indemnitee (unless Indemnitee shall request that such selection be made by the Board), and Indemnitee shall give
written notice to the Company advising it of the identity of the Independent Counsel so selected and certifying that the Independent
Counsel so selected meets the requirements of “Independent Counsel” as defined in Section 2 of this Agreement.
If the Independent Counsel is selected by the Board, the Company shall give written notice to Indemnitee advising Indemnitee of
the identity of the Independent Counsel so selected and certifying that the Independent Counsel so selected meets the requirements
of “Independent Counsel” as defined in Section 2 of this Agreement. In either event, Indemnitee or the
Company, as the case may be, may, within ten (10) days after such written notice of selection shall have been received, deliver
to the Company or to Indemnitee, as the case may be, a written objection to such selection; provided, however, that such
objection may be asserted only on the ground that the Independent Counsel so selected does not meet the requirements of “Independent
Counsel” as defined in Section 2 of this Agreement, and the objection shall set forth with particularity the
factual basis of such assertion. Absent a proper and timely objection, the person or law firm so selected shall act as Independent
Counsel. If such written objection is so made and substantiated, the Independent Counsel so selected may not serve as Independent
Counsel unless and until such objection is withdrawn or a court of competent jurisdiction has determined that such objection is
without merit. If, within twenty (20) days after submission by Indemnitee of a written request for indemnification pursuant to
Section 11(b) hereof, no Independent Counsel shall have been selected and not objected to, either the Company or Indemnitee
may petition the Delaware Court for resolution of any objection which shall have been made by the Company or Indemnitee to the
other’s selection of Independent Counsel and/or for the appointment as Independent Counsel of a person selected by the Delaware
Court, and the person with respect to whom all objections are so resolved or the person so appointed shall act as Independent
Counsel under Section 12(a) hereof. Upon the due commencement of any judicial proceeding or arbitration pursuant to
Section 14(a) of this Agreement, Independent Counsel shall be discharged and relieved of any further responsibility
in such capacity (subject to the applicable standards of professional conduct then prevailing).

 

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(c)
The Company agrees to pay the reasonable fees and expenses of Independent Counsel and to fully indemnify and hold harmless such
Independent Counsel against any and all Expenses, claims, liabilities and damages arising out of or relating to this Agreement
or such Independent Counsel’s engagement pursuant hereto.

 

13.
PRESUMPTIONS AND EFFECT OF CERTAIN PROCEEDINGS.

 

(a)
In making a determination with respect to entitlement to indemnification hereunder, the person, persons or entity making such
determination shall presume that Indemnitee is entitled to indemnification under this Agreement if Indemnitee has submitted a
request for indemnification in accordance with Section 11(b) of this Agreement, and the Company shall have the burden
of proof to overcome that presumption in connection with the making by any person, persons or entity of any determination contrary
to that presumption. Neither the failure of the Company (including by the Disinterested Directors or Independent Counsel) to have
made a determination prior to the commencement of any action pursuant to this Agreement that indemnification is proper in the
circumstances because Indemnitee has met the applicable standard of conduct, nor an actual determination by the Company (including
by the Disinterested Directors or Independent Counsel) that Indemnitee has not met such applicable standard of conduct, shall
be a defense to the action or create a presumption that Indemnitee has not met the applicable standard of conduct.

 

(b)
If the person, persons or entity empowered or selected under Section 12 of this Agreement to determine whether Indemnitee
is entitled to indemnification shall not have made a determination within thirty (30) days after receipt by the Company of the
request therefor, the requisite determination of entitlement to indemnification shall, to the fullest extent permitted by law,
be deemed to have been made and Indemnitee shall be entitled to such indemnification, absent (i) a misstatement by Indemnitee
of a material fact, or an omission of a material fact necessary to make Indemnitee’s statement not materially misleading,
in connection with the request for indemnification, or (ii) a final judicial determination that any or all such indemnification
is expressly prohibited under applicable law; provided, however, that such thirty-day period may be extended for a reasonable
time, not to exceed an additional fifteen (15) days, if the person, persons or entity making the determination with respect to
entitlement to indemnification in good faith requires such additional time for the obtaining or evaluating of documentation and/or
information relating thereto.

 

(c)
The termination of any Proceeding or of any claim, issue or matter therein, by judgment, order, settlement or conviction, or upon
a plea of nolo contendere or its equivalent, shall not (except as otherwise expressly provided in this Agreement) of itself adversely
affect the right of Indemnitee to indemnification or create a presumption that Indemnitee did not act in good faith and in a manner
which Indemnitee reasonably believed to be in or not opposed to the best interests of the Company or, with respect to any criminal
Proceeding, that Indemnitee had reasonable cause to believe that Indemnitee’s conduct was unlawful.

 

(d)
For purposes of any determination of good faith, Indemnitee shall be deemed to have acted in good faith if Indemnitee’s
action is based on the records or books of account of the Enterprise, including financial statements, or on information supplied
to Indemnitee by the directors, managers or officers of the Enterprise in the course of their duties, or on the advice of legal
counsel for the Enterprise, the Board, any committee of the Board or any director, trustee, general partner, manager or managing
member of the Enterprise, or on information or records given or reports made to the Enterprise, the Board, any committee of the
Board or any director, trustee, general partner, manager or managing member of the Enterprise, by an independent certified public
accountant or by an appraiser or other expert selected by the Enterprise, the Board, any committee of the Board or any director,
trustee, general partner, manager or managing member of the Enterprise. The provisions of this Section 13(d) shall
not be deemed to be exclusive or to limit in any way the other circumstances in which Indemnitee may be deemed or found to have
met the applicable standard of conduct set forth in this Agreement.

 

(e)
The knowledge and/or actions, or failure to act, of any other director, officer, trustee, partner, manager, managing member, fiduciary,
agent or employee of the Enterprise shall not be imputed to Indemnitee for purposes of determining the right to indemnification
under this Agreement.

 

    8

     

    

 

14.
REMEDIES OF INDEMNITEE.

 

(a)
In the event that (i) a determination is made pursuant to Section 12 of this Agreement that Indemnitee is
not entitled to indemnification under this Agreement, (ii) advancement of Expenses is not timely made pursuant to Section 10
of this Agreement, (iii) no determination of entitlement to indemnification shall have been made pursuant to Section 12(a) of
this Agreement within thirty (30) days after receipt by the Company of the request for indemnification, (iv) payment of
indemnification is not made pursuant to Section 5, 6 or the last sentence of Section 12(a) of
this Agreement within ten (10) days after receipt by the Company of a written request therefor, (v) a contribution
payment is not made in a timely manner pursuant to Section 7 of this Agreement, (vi) payment of
indemnification pursuant to Section 3 or 4 of this Agreement is not made within ten (10) days after a
determination has been made that Indemnitee is entitled to indemnification or (vii) payment to Indemnitee pursuant to
any hold harmless or exoneration rights under this Agreement or otherwise is not made in accordance with this Agreement,
Indemnitee shall be entitled to an adjudication by the Delaware Court to such indemnification, hold harmless, exoneration,
contribution or advancement rights. Alternatively, Indemnitee, at Indemnitee’s option, may seek an award in arbitration
to be conducted by a single arbitrator pursuant to the Commercial Arbitration Rules of the American Arbitration Association.
Except as set forth herein, the provisions of Delaware law (without regard to its conflict of laws rules) shall apply to any
such arbitration. The Company shall not oppose Indemnitee’s right to seek any such adjudication or award in
arbitration.

 

(b)
In the event that a determination shall have been made pursuant to Section 12(a) of this Agreement that Indemnitee
is not entitled to indemnification, any judicial proceeding or arbitration commenced pursuant to this Section 14 shall
be conducted in all respects as a de novo trial, or arbitration, on the merits and Indemnitee shall not be prejudiced by reason
of that adverse determination.

 

(c)
In any judicial proceeding or arbitration commenced pursuant to this Section 14, Indemnitee shall be presumed to be
entitled to be indemnified, held harmless, exonerated and to receive advancement of Expenses under this Agreement and the Company
shall have the burden of proving Indemnitee is not entitled to be indemnified, held harmless, exonerated and to receive advancement
of Expenses, as the case may be, and the Company may not refer to or introduce into evidence any determination pursuant to Section 12(a) of
this Agreement adverse to Indemnitee for any purpose. If Indemnitee commences a judicial proceeding or arbitration pursuant to
this Section 14, Indemnitee shall not be required to reimburse the Company for any advances pursuant to Section 10 until
a final determination is made with respect to Indemnitee’s entitlement to indemnification (as to which all rights of appeal
have been exhausted or lapsed).

 

(d)
If a determination shall have been made pursuant to Section 12(a) of this Agreement that Indemnitee is entitled to
indemnification, the Company shall be bound by such determination in any judicial proceeding or arbitration commenced pursuant
to this Section 14, absent (i) a misstatement by Indemnitee of a material fact, or an omission of a material
fact necessary to make Indemnitee’s statement not materially misleading, in connection with the request for indemnification,
or (ii) a prohibition of such indemnification under applicable law.

 

(e)
The Company shall be precluded from asserting in any judicial proceeding or arbitration commenced pursuant to this Section 14
that the procedures and presumptions of this Agreement are not valid, binding and enforceable and shall stipulate in any such
court or before any such arbitrator that the Company is bound by all the provisions of this Agreement.

 

(f)  
The Company shall indemnify and hold harmless Indemnitee to the fullest extent permitted by law against all Expenses and, if requested
by Indemnitee, shall (within ten (10) days after the Company’s receipt of such written request) pay to Indemnitee, to the
fullest extent permitted by applicable law, such Expenses which are incurred by Indemnitee in connection with any judicial proceeding
or arbitration brought by Indemnitee: (i) to enforce Indemnitee’s rights under, or to recover damages for breach of,
this Agreement or any other indemnification, hold harmless, exoneration, advancement or contribution agreement or provision of
the Charter or the Bylaws now or hereafter in effect; or (ii) for recovery or advances under any insurance policy maintained
by any person for the benefit of Indemnitee, regardless of the outcome and whether Indemnitee ultimately is determined to be entitled
to such indemnification, hold harmless or exoneration right, advancement, contribution or insurance recovery, as the case may
be (unless such judicial proceeding or arbitration was not brought by Indemnitee in good faith).

 

    9

     

    

 

(g)
Interest shall be paid by the Company to Indemnitee at the legal rate under Delaware law for amounts which the Company indemnifies,
holds harmless or exonerates, or advances, or is obliged to indemnify, hold harmless or exonerate or advance for the period commencing
with the date on which Indemnitee requests indemnification, to be held harmless, exonerated, contribution, reimbursement or advancement
of any Expenses and ending with the date on which such payment is made to Indemnitee by the Company.

 

15.
SECURITY. Notwithstanding anything herein to the contrary, to the extent requested by Indemnitee and approved by the
Board, the Company may at any time and from time to time provide security to Indemnitee for the Company’s obligations hereunder
through an irrevocable bank line of credit, funded trust or other collateral. Any such security, once provided to Indemnitee,
may not be revoked or released without the prior written consent of Indemnitee.

 

16.
NON-EXCLUSIVITY; SURVIVAL OF RIGHTS; INSURANCE; SUBROGATION.

 

(a)
The rights of Indemnitee as provided by this Agreement shall not be deemed exclusive of any other rights to which Indemnitee may
at any time be entitled under applicable law, the Charter, the Bylaws, any agreement, a vote of stockholders or a resolution of
directors, or otherwise. No amendment, alteration or repeal of this Agreement or of any provision hereof shall limit or restrict
any right of Indemnitee under this Agreement in respect of any Proceeding (regardless of when such Proceeding is first threatened,
commenced or completed) or claim, issue or matter therein arising out of, or related to, any action taken or omitted by such Indemnitee
in Indemnitee’s Corporate Status prior to such amendment, alteration or repeal. To the extent that a change in applicable
law, whether by statute or judicial decision, permits greater indemnification, hold harmless or exoneration rights or advancement
of Expenses than would be afforded currently under the Charter, the Bylaws or this Agreement, it is the intent of the parties
hereto that Indemnitee shall enjoy by this Agreement the greater benefits so afforded by such change. No right or remedy herein
conferred is intended to be exclusive of any other right or remedy, and every other right and remedy shall be cumulative and in
addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion
or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any
other right or remedy.

 

(b)
The DGCL, the Charter and the Bylaws permit the Company to purchase and maintain insurance or furnish similar protection or make
other arrangements including, but not limited to, providing a trust fund, letter of credit, or surety bond (“Indemnification
Arrangements”) on behalf of Indemnitee against any liability asserted against Indemnitee or incurred by or on behalf
of Indemnitee or in such capacity as a director, officer, employee or agent of the Company, or arising out of Indemnitee’s
status as such, whether or not the Company would have the power to indemnify Indemnitee against such liability under the provisions
of this Agreement or under the DGCL, as it may then be in effect. The purchase, establishment and maintenance of any such Indemnification
Arrangement shall not in any way limit or affect the rights and obligations of the Company or of Indemnitee under this Agreement
except as expressly provided herein, and the execution and delivery of this Agreement by the Company and Indemnitee shall not
in any way limit or affect the rights and obligations of the Company or the other party or parties thereto under any such Indemnification
Arrangement.

 

(c)
To the extent that the Company maintains an insurance policy or policies providing liability insurance for directors, officers,
trustees, partners, managers, managing members, fiduciaries, employees or agents of the Company or of any other Enterprise which
such person is or was Serving at the Request of the Company, Indemnitee shall be covered by such policy or policies in accordance
with its or their terms to the maximum extent of the coverage available for any such director, officer, trustee, partner, managers,
managing member, fiduciary, employee or agent under such policy or policies. If, at the time the Company receives notice from
any source of a Proceeding as to which Indemnitee is a party or a participant (as a witness, deponent or otherwise), the Company
has director and officer liability insurance in effect, the Company shall give prompt notice of such Proceeding to the insurers
in accordance with the procedures set forth in the respective policies. The Company shall thereafter take all necessary or desirable
action to cause such insurers to pay, on behalf of Indemnitee, all amounts payable as a result of such Proceeding in accordance
with the terms of such policies.

 

(d)
In the event of any payment under this Agreement, the Company, to the fullest extent permitted by law, shall be subrogated to
the extent of such payment to all of the rights of recovery of Indemnitee, who shall execute all papers required and take all
action necessary to secure such rights, including execution of such documents as are necessary to enable the Company to bring
suit to enforce such rights.

 

    10

     

    

 

(e)
The Company’s obligation to indemnify, hold harmless, exonerate or advance Expenses hereunder to Indemnitee who is or was
Serving at the Request of the Company as a director, officer, trustee, partner, manager, managing member, fiduciary, employee
or agent of any other Enterprise shall be reduced by any amount Indemnitee has actually received as indemnification, hold harmless
or exoneration payments or advancement of Expenses from such Enterprise. Notwithstanding any other provision of this Agreement
to the contrary, (i) Indemnitee shall have no obligation to reduce, offset, allocate, pursue or apportion any indemnification,
hold harmless, exoneration, advancement, contribution or insurance coverage among multiple parties possessing such duties to Indemnitee
prior to the Company’s satisfaction and performance of all its obligations under this Agreement and (ii) the Company
shall perform fully its obligations under this Agreement without regard to whether Indemnitee holds, may pursue or has pursued
any indemnification, advancement, hold harmless, exoneration, contribution or insurance coverage rights against any person or
entity other than the Company.

 

17.
DURATION OF AGREEMENT. All agreements and obligations of the Company contained herein shall continue during the period
Indemnitee serves as a director or officer of the Company or as a director, officer, trustee, partner, manager, managing member,
fiduciary, employee or agent of any other corporation, partnership, joint venture, trust, employee benefit plan or other Enterprise
which Indemnitee is Serving at the Request of the Company and shall continue thereafter so long as Indemnitee shall be subject
to any possible Proceeding (including any rights of appeal thereto and any Proceeding commenced by Indemnitee pursuant to Section 14
of this Agreement) by reason of Indemnitee’s Corporate Status, whether or not Indemnitee is acting in any such capacity
at the time any liability or Expense is incurred for which indemnification or advancement can be provided under this Agreement.

 

18.
SEVERABILITY. If any provision or provisions of this Agreement shall be held to be invalid, illegal or unenforceable
for any reason whatsoever: (a) the validity, legality and enforceability of the remaining provisions of this Agreement (including,
without limitation, each portion of any Section, paragraph or sentence of this Agreement containing any such provision held to
be invalid, illegal or unenforceable, that is not itself invalid, illegal or unenforceable) shall not in any way be affected or
impaired thereby and shall remain enforceable to the fullest extent permitted by law; (b) such provision or provisions shall
be deemed reformed to the extent necessary to conform to applicable law and to give the maximum effect to the intent of the parties
hereto; and (c) to the fullest extent possible, the provisions of this Agreement (including, without limitation, each portion
of any Section, paragraph or sentence of this Agreement containing any such provision held to be invalid, illegal or unenforceable,
that is not itself invalid, illegal or unenforceable) shall be construed so as to give effect to the intent manifested thereby.

 

19.
ENFORCEMENT AND BINDING EFFECT.

 

(a)
The Company expressly confirms and agrees that it has entered into this Agreement and assumed the obligations imposed on it hereby
in order to induce Indemnitee to serve as a director, officer or key employee of the Company, and the Company acknowledges that
Indemnitee is relying upon this Agreement in serving as a director, officer or key employee of the Company.

 

(b)
Without limiting any of the rights of Indemnitee under the Charter or Bylaws as they may be amended from time to time, this Agreement
constitutes the entire agreement between the parties hereto with respect to the subject matter hereof and supersedes all prior
agreements and understandings, oral, written and implied, between the parties hereto with respect to the subject matter hereof.

 

(c)
The indemnification, hold harmless, exoneration and advancement of Expenses rights provided by or granted pursuant to this Agreement
shall be binding upon and be enforceable by the parties hereto and their respective successors and assigns (including any direct
or indirect successor by purchase, merger, consolidation or otherwise to all or substantially all of the business and/or assets
of the Company), shall continue as to an Indemnitee who has ceased to be a director, officer employee or agent of the Company
or a director, officer, trustee, general partner, manager, managing member, fiduciary, employee or agent of any other Enterprise
at the Company’s request, and shall inure to the benefit of Indemnitee and Indemnitee’s spouse, assigns, heirs, devisees,
executors and administrators and other legal representatives.

 

(d)
The Company shall require and cause any successor (whether direct or indirect by purchase, merger, consolidation or otherwise)
to all, substantially all or a substantial part of the business and/or assets of the Company, by written agreement in form and
substance satisfactory to Indemnitee, expressly to assume and agree to perform this Agreement in the same manner and to the same
extent that the Company would be required to perform if no such succession had taken place.

 

    11

     

    

 

(e)
The Company and Indemnitee agree herein that a monetary remedy for breach of this Agreement, at some later date, may be inadequate,
impracticable and difficult to prove, and further agree that such breach may cause Indemnitee irreparable harm. Accordingly, the
parties hereto agree that Indemnitee may, to the fullest extent permitted by law, enforce this Agreement by seeking, among other
things, injunctive relief and/or specific performance hereof, without any necessity of showing actual damage or irreparable harm
and that by seeking injunctive relief and/or specific performance, Indemnitee shall not be precluded from seeking or obtaining
any other relief to which Indemnitee may be entitled. The Company and Indemnitee further agree that Indemnitee shall, to the fullest
extent permitted by law, be entitled to such specific performance and injunctive relief, including temporary restraining orders,
preliminary injunctions and permanent injunctions, without the necessity of posting bonds or other undertaking in connection therewith.
The Company acknowledges that in the absence of a waiver, a bond or undertaking may be required of Indemnitee by a court of competent
jurisdiction. The Company hereby waives any such requirement of such a bond or undertaking to the fullest extent permitted by
law.

 

20.
MODIFICATION AND WAIVER. No supplement, modification or amendment of this Agreement shall be binding unless executed
in writing by the Company and Indemnitee. No waiver of any of the provisions of this Agreement shall be deemed or shall constitute
a waiver of any other provisions of this Agreement nor shall any waiver constitute a continuing waiver.

 

21.
NOTICES. All notices, requests, demands and other communications under this Agreement shall be in writing and shall
be deemed to have been duly given (a) if delivered by hand and receipted for by the party to whom said notice or other communication
shall have been directed, or (b) mailed by certified or registered mail with postage prepaid, on the third (3rd) business
day after the date on which it is so mailed:

 

(i)
    If to Indemnitee, at the address indicated on the signature page of this Agreement, or such other address as Indemnitee shall
provide in writing to the Company.

 

(ii)
    If to the Company, to:

 

Tortoise
Acquisition Corp.

452 Fifth Avenue, 14th Floor

New
York, NY 10018

 

or
to any other address as may have been furnished to Indemnitee in writing by the Company.

 

22.
APPLICABLE LAW AND CONSENT TO JURISDICTION. This Agreement and the legal relations among the parties shall be governed
by, and construed and enforced in accordance with, the laws of the State of Delaware, without regard to its conflict of laws rules.
Except with respect to any arbitration commenced by Indemnitee pursuant to Section 14(a) of this Agreement, to the
fullest extent permitted by law, the Company and Indemnitee hereby irrevocably and unconditionally: (a) agree that any action
or proceeding arising out of or in connection with this Agreement shall be brought only in the Delaware Court and not in any other
state or federal court in the United States of America or any court in any other country; (b) consent to submit to the exclusive
jurisdiction of the Delaware Court for purposes of any action or proceeding arising out of or in connection with this Agreement;
(c) waive any objection to the laying of venue of any such action or proceeding in the Delaware Court; and (d) waive,
and agree not to plead or to make, any claim that any such action or proceeding brought in the Delaware Court has been brought
in an improper or inconvenient forum, or is subject (in whole or in part) to a jury trial. To the fullest extent permitted by
law, the parties hereby agree that the mailing of process and other papers in connection with any such action or proceeding in
the manner provided by Section 21 or in such other manner as may be permitted by law, shall be valid and sufficient
service thereof.

 

23.
IDENTICAL COUNTERPARTS. This Agreement may be executed in one or more counterparts (including by electronic delivery
of a counterpart in pdf format), each of which shall for all purposes be deemed to be an original but all of which together shall
constitute one and the same Agreement. Only one such counterpart signed by the party against whom enforceability is sought needs
to be produced to evidence the existence of this Agreement.

 

    12

     

    

 

24.
MISCELLANEOUS. Use of the masculine pronoun shall be deemed to include usage of the feminine pronoun where appropriate
and vice versa. The headings of the paragraphs of this Agreement are inserted for convenience only and shall not be deemed to
constitute part of this Agreement or to affect the construction thereof.

 

25.
PERIOD OF LIMITATIONS. No legal action shall be brought and no cause of action shall be asserted by or in the right
of the Company against Indemnitee, Indemnitee’s spouse, heirs, executors or personal or legal representatives after the
expiration of two (2) years from the date of accrual of such cause of action, and any claim or cause of action of the Company
shall be extinguished and deemed released unless asserted by the timely filing of a legal action within such two-year period;
provided, however, that if any shorter period of limitations is otherwise applicable to any such cause of action such shorter
period shall govern.

 

26.
ADDITIONAL ACTS. If for the validation of any of the provisions in this Agreement any act, resolution, approval or
other procedure is required to the fullest extent permitted by law, the Company undertakes to cause such act, resolution, approval
or other procedure to be affected or adopted in a manner that will enable the Company to fulfill its obligations under this Agreement.

 

27.
WAIVER OF CLAIMS TO TRUST ACCOUNT. Notwithstanding anything contained herein to the contrary, Indemnitee hereby agrees
that it does not have any right, title, interest or claim of any kind (each, a “Claim”) in or to any
monies in the trust account established in connection with the Company’s initial public offering for the benefit of the
Company and holders of shares issued in such offering, and hereby waives any Claim it may have in the future as a result of, or
arising out of, any services provided to the Company and will not seek recourse against such trust account for any reason whatsoever.
Accordingly, Indemnitee acknowledges and agrees that any indemnification provided hereto will only be able to be satisfied by
the Company if (i) the Company has sufficient funds outside of the trust account to satisfy its obligations hereunder or (ii)
the Company consummates a Business Combination.

 

[Signature
Page Follows]

 

    13

     

    

 

IN
WITNESS WHEREOF, the parties hereto have caused this Indemnification Agreement to be signed as of the day and year first above
written.

 

	 	TORTOISE ACQUISITION CORP.
	 	 	 
	 	By:	               
	 	Name:	Vincent T. Cubbage
	 	Title:	President and Chief Executive Officer
	 	 	 
	 	INDEMNITEE
	 	 	 
	 	By:	 
	 	Name:	 
	 	Address:	 

 

 

[Signature Page to
Indemnification Agreement]AGREEMENT AND PLAN OF MERGER

 

This AGREEMENT AND PLAN OF MERGER
(the “Agreement”), entered into as of December 17, 2018, by and among Giant Motorsports Delaware, Inc., a Delaware
corporation (“Predecessor”), Fast Lane Holdings, Inc., a Delaware corporation (“Successor”)
and a direct, wholly owned subsidiary of Predecessor, and Giant Motorsports Merger Sub, a Delaware corporation (“Merger
Sub”) and a direct, wholly owned subsidiary of Successor.

 

 

RECITALS

 

WHEREAS, on the date hereof,
the Predecessor has the authority to issue 520,000,000 shares, consisting of: (i) 500,000,000 shares of Common Stock, par value
$0.001 per share (the “Predecessor Common Stock”), of which 72,948,316 common shares are issued and outstanding;

(ii) 20,000,000 shares of Preferred Stock, par value
$.001 per share (the “Predecessor Preferred Stock”), of which 5,000 shares are designated as Convertible Series
A and 5,000 Convertible Series A preferred shares are issued and outstanding. Together with the Predecessor Common Stock, the (“Predecessor
Capital Stock”).

 

WHEREAS, on the date hereof,
Successor has the authority to issue 520,000,000 shares, consisting of: (i) 500,000,000 shares of Common Stock, par value $0.001
per share (the “Successor Common Stock”), of which 1,000 common shares are issued and outstanding on the date
hereof and held by Predecessor; (ii) 20,000,000 shares of Preferred Stock, par value $.001 per share (the “Successor Preferred
Stock”) of which 5,000 shares are designated as Convertible Series A. No preferred shares of any class or series are
issued and outstanding. Together, with

the Successor Common Stock, the (“Successor Capital
Stock”).

 

WHEREAS, on the date hereof,
Merger Sub has the authority to issue 520,000,000 shares, consisting of: (i) 500,000,000 shares of Common Stock, par value $0.001
per share (the “Merger Sub Common Stock”), of which 1,000 common shares are issued and outstanding on the date
hereof and held by Successor; (ii) 20,000,000 shares of Preferred Stock, par value $.001 (the “Merger Sub Preferred Stock”),
of which 5,000 shares are designated as Convertible Series

A. No preferred shares of any class or series are
issued and outstanding. Together, with the Merger Sub Common Stock, the (“Merger Sub Capital Stock”).

 

WHEREAS, Successor and Merger
Sub are newly formed corporations as of December 6, 2018 organized for the sole purpose of participating in a Delaware holding
company reorganization pursuant to Section 251(g) of the General Corporation Law of the state of Delaware, (the “DGCL”).
Each corporation own no assets and have taken no actions other than those necessary or advisable to organize the corporations and
to affect the transactions herein contemplated and actions related thereto.

 

WHEREAS, Predecessor is a newly
formed Delaware Corporation as of December 6, 2018 for the sole purpose of re-domesticating its former parent company Giant Motorsports,
Inc., a Nevada corporation to Delaware and desires to reorganize into a holding company structure pursuant to Section 251(g) of
the DGCL under which the Successor would become a holding

 

-1-

 

company, by the merger of Merger Sub with and into
the Predecessor, and with each share of Predecessor Common Stock and Predecessor Preferred Stock being converted in the Merger,
(as defined below) into a share of Successor Common Stock or Successor Preferred Stock, respectively. Re-domestication will be
completed and immediately occur prior to the Effective Time, (as defined below) of this Agreement.

 

WHEREAS, the respective boards of
directors of Predecessor, Successor and Merger Sub have approved and declared advisable and in the best interests of each of such
corporations and its shareholders this Agreement and the transactions contemplated hereby, including without limitation, the Merger.

 

WHEREAS, under the respective
certificates of incorporation of Predecessor and Successor, the Successor Capital Stock has the same designations, rights, and
powers and preferences, and the qualifications, limitations and restrictions thereof, as the Predecessor Capital Stock which will
be automatically converted pursuant to the holding company reorganization;

 

WHEREAS, the Certificate of Incorporation
and Bylaws of Successor, as the holding company, at the Effective Time of the merger contain provisions identical to the Certificate
of Incorporation and Bylaws of Predecessor immediately prior to the merger, other than as permitted by Section 251(g) of the DGCL;

 

WHEREAS,
the Certificate of Incorporation and Bylaws of Merger Sub are identical to the Certificate of Incorporation and Bylaws of Predecessor
immediately prior to the merger, other than as permitted by Section 251(g) of the DGCL;

 

WHEREAS, the Certificate of Incorporation
of the Predecessor has the provisions required by Section 251(g)(7)(i).

 

WHEREAS, the Boards of Directors
of Predecessor, Successor, and Merger Sub have each approved this Agreement, shareholder approval not being required pursuant to
Section 251(g) of the DGCL;

 

WHEREAS, the parties hereto intend
that the reorganization contemplated by this Agreement shall constitute a tax-free organization pursuant to Section 368(a)(1) of
the Internal Revenue Code;

 

NOW, THEREFORE, in consideration
of the mutual agreements and covenants herein contained, Predecessor, Successor, and Merger Sub hereby agree as follows:

 

1. Merger.
At the Effective Time and in accordance with this Agreement and the provisions set forth in Section 251(g) of the DGCL, Merger
Sub shall be merged with and into Predecessor, (the “Merger”), and Predecessor shall be the surviving corporation,
(hereinafter sometimes referred to as the (“Surviving Corporation”). At the Effective Time, the separate corporate
existence of Merger Sub shall cease, and Predecessor shall become the wholly owned subsidiary of Successor, and Successor shall
become the publicly traded company, as the successor issuer.

 

-2-

 

2.  
Effective Time. As soon as practicable on or after the date hereof, the Surviving Corporation
shall file this Agreement with Certification by the Secretary of the Surviving Corporation executed in accordance with the relevant
provisions of the DGCL, and with the Secretary of State of the State of Delaware (the “Secretary of State”)
and shall make all other filings or recordings required under the DGCL to effectuate the Merger. The Merger shall become effective
at such time as the Agreement with Certification is duly filed with the Secretary of State, (the date and time the Merger becomes
effective being referred to herein as the “Effective Time”).

 

3.  
Effects of Merger. The Merger shall have the effects set forth in this Agreement and
in the applicable provisions set forth in Section 251(g) of the DGCL. Without limiting the generality of the foregoing, and subject
thereto, at the Effective Time, (i) right and title to all assets (including real estate and other property) owned by, and every
contract right possessed by, the Predecessor and Merger Sub shall vest in the Surviving Corporation, and (ii) all liabilities and
obligations of the Predecessor and Merger Sub shall become the liabilities and obligations of the Surviving Corporation. The vesting
of such rights, title, liabilities, and obligations in the Surviving Corporation shall not be deemed to constitute an assignment
or an undertaking or attempt to assign such rights, title, liabilities and obligations. The conversion of securities of Predecessor
into the identical and equivalent securities of Successor will not constitute a different security. Stockholders of Predecessor
shall be the stockholders of Successor. Successor common stock will trade in the OTC Markets under the Predecessor ticker symbol
“GMOS” under which the common stock of Predecessor previously listed and traded until a new ticker symbol change has
been approved and is in effect by the Financial Industry Regulatory Authority.

 

4.  
Directors. The directors of Predecessor immediately preceding the Effective Time shall
be the Directors of the Surviving Corporation at and after the Effective Time until their successors are duly elected and qualified.

 

5.  
Officers. The officers of Predecessor immediately preceding the Effective Time shall
be the officers of the Surviving Corporation at and after the Effective Time, to serve at the pleasure of the Board of Directors
of Surviving Corporation.

 

6.  
Conversion of Securities. At the Effective Time, by virtue of the merger and without
any action on the part of the holder thereof;

 

(a)  
Conversion of Predecessor Common Stock. Each share of Predecessor Common Stock issued
and outstanding immediately prior to the Effective Time shall be converted into one validly issued, fully paid and nonassessable
share of Successor Common Stock;

 

(b)  
Conversion of Predecessor Common Stock Held as Treasury Stock. Each share of Predecessor
Common Stock issued and outstanding held in the Predecessor’s treasury shall be cancelled and retired.

 

(c)  
Conversion of Predecessor Preferred Stock. Each share of Predecessor Preferred Stock
issued and outstanding immediately prior to the Effective Time shall be converted into one validly issued, fully paid and nonassessable
share of Successor Preferred Stock having the same

 

-3-

 

designations, rights, power, and preferences, and the
qualifications, limitations, and restrictions thereof, as the corresponding share of the Predecessor Preferred Stock.

 

(d)  
Conversion of Predecessor Preferred Stock Held as Treasury Stock. Each share of Predecessor
Preferred Stock issued and outstanding held in the Predecessor’s treasury shall be cancelled and retired.

 

(e)  
Conversion of Options, Warrants, Purchase Rights, Units or Other Securities of Predecessor.
Each option, warrant, purchase right, unit or other security of Predecessor convertible into shares of Predecessor Capital Stock
shall become convertible into the same number of shares of Successor Capital Stock as such security would have received if the
security had been converted into shares of Predecessor Capital Stock immediately prior to the Effective Time, and Successor shall
reserve for purposes of the exercise of such options, warrants, purchase rights, units or other securities an equal number of shares
of Successor Capital Stock as Predecessor had reserved.

 

(f)  
Conversion of Successor Common Stock. Each share of Successor Common Stock issued and
outstanding held in the name of Predecessor immediately prior to the Effective Time shall be cancelled and retired and resume the
status of authorized and unissued shares of Successor Common Stock.

 

(g)  
Conversion of Merger Sub Common Stock. Each share of Merger Sub common Stock will be
converted into one validly issued, fully paid and nonassessable share of common stock of the Surviving Corporation.

 

(h)  
Rights of Certificate Holders. Upon conversion thereof in accordance with this Section
6, all shares of Predecessor Capital Stock shall no longer be outstanding and shall cease to exist, and each holder of a certificate
representing any such shares except, in all cases, as set forth in Section 9 herein. In addition, each outstanding book-entry
that, immediately prior to the Effective Time, evidenced shares of Predecessor Capital Stock shall, from and after the Effective
Time, be deemed and treated for all corporate purposes to evidence the ownership of the same number of shares of Successor Capital
Stock.

 

7.  
Other Agreements. At the Effective Time, Successor shall assume any obligation of Predecessor
to deliver or make available shares of Predecessor Capital Stock under any agreement or employee benefit plan not referred to in
Paragraph 6 herein to which Predecessor is a party. Any reference to Predecessor Capital Stock under any such agreement or employee
benefit plan shall be issuable in lieu of each share of Predecessor Capital Stock required to be issued by any such agreement or
employee benefit plan, subject to subsequent adjustment as provided in any such agreement or employee benefit plan.

 

8.  
Further Assurances. From time to time, as and when required by the Surviving Corporation
or by its successors or assigns, there shall be executed and delivered on behalf of Predecessor such deeds and other instruments,
and there shall be taken or caused to be taken by it all such further and other action, as shall be appropriate, advisable or necessary
in order to vest perfect or conform, of record or otherwise, in the Surviving Corporation, the title to and possession of all property,
interests, assets, rights, privileges, immunities, powers, franchises and

 

-4-

 

authority of Predecessor, and otherwise to carry
out the purposes of this Agreement, and the officers and directors of the Surviving Corporation are fully authorized, in the name
and on behalf of Predecessor or otherwise, to take any and all such action and to execute and deliver any and all such deeds and
other instruments.

 

9.  
Certificates. At and after the Effective Time until thereafter surrendered for transfer
or exchange in the ordinary course, each outstanding certificate which immediately prior thereto represented shares of Predecessor
Capital Stock shall be deemed for all purposes to evidence ownership of and to represent the shares of Successor Capital Stock
into which the shares of Predecessor Capital Stock represented by such certificate have been converted as herein provided and shall
be so registered on the books and records of Successor and its transfer agent. At and after the Effective Time, the shares of capital
stock of Successor shall be uncertificated; provided, that, any shares of capital stock of Successor that are represented by outstanding
certificates of Predecessor pursuant to the immediately preceding sentence shall continue to be represented by certificates as
provided therein and shall not be uncertificated unless and until a valid certificate representing such shares pursuant to the
immediately preceding sentence is delivered to Successor’s transfer agent at which time such certificate shall be canceled
and in lieu of the delivery of a certificate representing the applicable shares of capital stock of Successor, Successor shall
(i) issue to such holder the applicable uncertificated shares of capital stock of Successor by registering such shares in Successor’s
books and records as book-entry shares, upon which such shares shall thereafter be uncertificated and (ii) take all action necessary
to provide such holder with evidence of the uncertificated book-entry shares, including any action necessary under applicable law
in accordance therewith, including in accordance with Sections 151(f) and 202 of the DGCL.

 

10.  
Amendment. The parties hereto, by mutual
consent of their respective boards of directors, may amend, modify or supplement this Agreement prior to the Effective Time.

 

11.  
Compliance with Section 251(g) of the DGCL. Prior to the Effective Time, the parties
hereto will take all steps necessary to comply with Section 251(g) of the General Corporation Law of the State of Delaware, including
without limitation, the following:

 

a.  
Certificate of Incorporation and Bylaws of Successor. At the Effective Time, the Certificate
of Incorporation and Bylaws of Successor shall be in the form of the Certificate of the Incorporation and Bylaws of Predecessor,
as in effect immediately prior to the Effective Time.

 

b.  
Directors of Successor. At the Effective Time, the Directors of Predecessor immediately prior
to the Effective Time shall be the Directors of Successor, until their successors are elected and qualified.

 

c.  
Filings. Prior to the Effective Time, the Surviving Corporation shall cause a copy of this
Agreement to be executed with Certification and filed with the Delaware Secretary of State. Prior to the Effective Time, to the
extent necessary to effectuate any amendments to the certificate of incorporation of the Surviving Corporation contemplated by
this Agreement, the Surviving Corporation shall cause to be filed with the Delaware Secretary of State such certificates or documents
required to give effect thereto.

 

-5-

 

12.  
Termination. This Agreement may be terminated, and the Merger and the other transactions
provided for herein may be abandoned, at any time prior to the Effective Time, whether before or after approval of this Agreement
by the board of directors of Predecessor, Successor, and Merger Sub, or by action of the board of directors of Predecessor if it
determines for any reason, in its sole judgment and discretion, that the consummation of the Agreement would be advisable or not
and in the best interests of Predecessor and its stockholders.

 

13.  
Counterparts. This Agreement may be executed in one or more counterparts, and
each such counterpart hereof shall be deemed to be an original instrument, but all such counterparts together shall constitute
but one agreement.

 

14.  
Descriptive Headings. The descriptive headings herein are inserted for convenience
of reference only and are not intended to be part of or to affect the meaning or interpretation of this Agreement.

 

15.  
Governing Law. This Agreement shall be governed by and construed in accordance with
the laws of the State of Delaware.

 

IN WITNESS WHEREOF, Predecessor,
Successor, and Merger Sub have caused this Agreement to be executed and delivered as of the date first written above.

 

GIANT
MOTORSPORTS DELAWARE, INC. (“PREDECESSOR”)

By:
/s/ Paul Moody

Name: Paul Moody

Title:President, Secretary and Sole Director

 

FAST
LANE HOLDINGS, INC. (“SUCCESSOR”)

By:
/s/ Paul Moody

Name: Paul Moody

Title:President, Secretary and Sole Director

 

GIANT
MOTORSPORTS MERGER SUB, INC. (“MERGER SUB”)

By:
/s/ Paul Moody

Name: Paul Moody

Title:President, Secretary and Sole Director

 

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