Exhibit 10.3


 





Execution Version


 


REGISTRATION RIGHTS AGREEMENT


 


THIS REGISTRATION RIGHTS
AGREEMENT (this “Agreement”), dated as of  February 27, 2019, is made and entered into by and among
Tortoise Acquisition Corp., a Delaware corporation (the “Company”), Tortoise Sponsor LLC, a Delaware
limited liability company (the “Sponsor”), Atlas Point Energy Infrastructure Fund, LLC, a Delaware limited
liability company (“Atlas Point”), Tortoise Borrower LLC, a Delaware limited liability company (“Tortoise
Borrower”), and the undersigned parties listed under Holder on the signature pages hereto (each such party, together
with the Sponsor and any person or entity who hereafter becomes a party to this Agreement pursuant to Section 5.2 of
this Agreement, a “Holder” and collectively the “Holders”).


 


RECITALS


 


WHEREAS, the
Sponsor and Tortoise Borrower own an aggregate of 6,468,750 shares of the Company’s Class B common stock, par value $0.0001
per share (the “Founder Shares”);


 


WHEREAS, at
the closing of the Company’s initial public offering, the Sponsor and Tortoise Borrower will transfer to Atlas Point, Andrew
J. Orekar, Frank M. Semple and Sidney L. Tassin an aggregate of 1,385,625 Founder Shares;


 


WHEREAS, the
Founder Shares will automatically convert into shares of the Company’s Class A common stock, par value $0.0001 per share
(the “Common Stock”), at the time of the Company’s initial Business Combination (as defined below)
on a one-for-one basis, subject to adjustment, on the terms and conditions provided in the Company’s amended and restated
certificate of incorporation;


 


WHEREAS, on
February 27, 2019, the Company and Tortoise Borrower entered into that certain Private Placement Warrants Purchase Agreement, pursuant
to which Tortoise Borrower agreed to purchase 6,500,000 warrants (or 7,175,000 warrants if the over-allotment option in connection
with the Company’s initial public offering is exercised in full) (the “Private Placement Warrants”)
in a private placement transaction occurring simultaneously with the closing of the Company’s initial public offering;


 


WHEREAS, on
February 6, 2019, the Company, the Sponsor and Atlas Point entered into that certain Amended and Restated Forward Purchase Agreement,
pursuant to which Atlas Point agreed to purchase up to an aggregate maximum amount of $150,000,000 of either, at the election of
the Company, (i) a number of units (the “Forward Purchase Units”), consisting of one share of Common
Stock (the “Forward Purchase Shares”) and one-half of one warrant (the “Forward Purchase
Warrants”), for $10.00 per unit or (ii) a number of Forward Purchase Shares for $9.67 per share, in a private placement
that will close simultaneously with the closing of the Company’s initial Business Combination; and


 


WHEREAS, the
Company and the Holders desire to enter into this Agreement, pursuant to which the Company shall grant the Holders certain registration
rights with respect to certain securities of the Company, as set forth in this Agreement.


 


NOW, THEREFORE,
in consideration of the representations, covenants and agreements contained herein, and certain other good and valuable consideration,
the receipt and sufficiency of which are hereby acknowledged, the parties hereto, intending to be legally bound, hereby agree as
follows:


 


Article 1

DEFINITIONS


 


1.1 Definitions.
The terms defined in this Article 1 shall, for all purposes of this Agreement, have the respective meanings set forth
below:


 


“Adverse
Disclosure” shall mean any public disclosure of material non-public information, which disclosure, in the good faith
judgment of the Chief Executive Officer or principal financial officer of the Company, after consultation with counsel to the Company,
(i) would be required to be made in any Registration Statement or Prospectus in order for the applicable Registration Statement
or Prospectus not to contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements
contained therein (in the case of any prospectus and any preliminary prospectus, in the light of the circumstances under which
they were made) not misleading, (ii) would not be required to be made at such time if the Registration Statement were not
being filed and (iii) the Company has a bona fide business purpose for not making such information public.


 






    


     


    

 


“Agreement”
shall have the meaning given in the Preamble.


 


“Atlas
Point” shall have the meaning given in the Preamble.


 


“Board”
shall mean the board of directors of the Company.


 


“Business
Combination” shall mean any merger, capital stock exchange, asset acquisition, stock purchase, reorganization or
other similar business combination with one or more businesses, involving the Company.


 


“Commission”
shall mean the Securities and Exchange Commission.


 


“Common
Stock” shall have the meaning given in the Recitals hereto.


 


“Company”
shall have the meaning given in the Preamble.


 


“Demand
Registration” shall have the meaning given in subsection 2.1.1.


 


“Demanding
Holder” shall mean, (i) for purposes of a Demand Registration, any Holder or group of Holders, that together holds
Registrable Securities having an aggregate value of at least $25 million, at the time of the written demand, and (ii) for purposes
of an Underwritten Demand, any Holder or group of Holders, that together elects to dispose of Registrable Securities having an
aggregate value of at least $25 million, at the time of the Underwritten Demand, under a Registration Statement pursuant to an
Underwritten Offering.


 


“Effectiveness
Period” shall have the meaning given in subsection 3.1.1.


 


“Exchange
Act” shall mean the Securities Exchange Act of 1934, as it may be amended from time to time.


 


“Form S-3”
shall mean Form S-3 or any similar short-form registration statement that may be available at such time.


 


“Forward
Purchase Shares” shall have the meaning given in the Recitals hereto.


 


“Forward
Purchase Units” shall have the meaning given in the Recitals hereto.


 


“Forward
Purchase Warrants” shall have the meaning given in the Recitals hereto.


 


“Founder
Shares” shall have the meaning given in the Recitals hereto.


 


“Founder
Shares Lock-up Period” shall mean, with respect to the Founder Shares, until the earlier of (A) one year after the
date of the consummation of a Business Combination and (B) the earlier to occur of, subsequent to a Business Combination, (i) the
first date on which the last reported sale price of the Common Stock equals or exceeds $12.00 per share (as adjusted for stock
splits, stock dividends, reorganizations, recapitalizations and the like) for any twenty (20) trading days within any thirty (30)
trading-day period commencing at least one hundred and fifty (150) days after the consummation of a Business Combination and (ii)
the date on which the Company consummates a subsequent liquidation, merger, stock exchange or other similar transaction which results
in all of the Company’s stockholders having the right to exchange their shares of Common Stock for cash, securities or other
property.


 


“Holder
Indemnified Persons” shall have the meaning given in subsection 4.1.1.


 






    2


     


    

 


“Holders”
shall have the meaning given in the Preamble.


 


“Insider
Letter” shall mean the certain letter agreement, dated as of February 27, 2019, by and among the Company, the Sponsor,
Tortoise Borrower, Atlas Point and each of the Company’s officers, directors and director nominees.


 


“Maximum
Number of Securities” shall have the meaning given in subsection 2.1.4.


 


“Misstatement”
shall mean an untrue statement of a material fact or an omission to state a material fact required to be stated in a Registration
Statement or Prospectus, or necessary to make the statements in a Registration Statement or Prospectus in the light of the circumstances
under which they were made not misleading.


 


“Piggyback
Registration” shall have the meaning given in subsection 2.2.1.


 


“Private
Placement Lock-up Period” shall mean, with respect to Private Placement Warrants and Common Stock underlying the
Private Placement Warrants, until thirty (30) days after the completion of a Business Combination.


 


“Private
Placement Warrants” shall have the meaning given in the Recitals hereto.


 


“Prospectus”
shall mean the prospectus included in any Registration Statement, as supplemented by any and all prospectus supplements and as
amended by any and all post-effective amendments and including all material incorporated by reference in such prospectus.


 


“Registrable
Security” shall mean (a) the shares of Common Stock issued or issuable upon the conversion of any Founder Shares,
(b) the Private Placement Warrants (including any shares of Common Stock issued or issuable upon the exercise of any such
Private Placement Warrants), (c) the Forward Purchase Shares or the Forward Purchase Warrants (including any shares of Common Stock
issued or issuable upon the exercise of any such Forward Purchase Warrants), (d) any outstanding share of Common Stock or
any other equity security (including the shares of Common Stock issued or issuable upon the exercise of any other equity security)
of the Company held by a Holder as of the date of this Agreement, (e) any equity securities (including the shares of Common
Stock issued or issuable upon the exercise of any such equity security) of the Company issuable upon conversion of any working
capital loans in an amount up to $1,500,000 made to the Company by a Holder and (f) any other equity security of the Company
issued or issuable with respect to any such share of Common Stock by way of a stock dividend or stock split or in connection with
a combination of shares, recapitalization, merger, consolidation or reorganization; provided, however, that, as to any particular
Registrable Security, such securities shall cease to be Registrable Securities when: (A) a Registration Statement with
respect to the sale of such securities shall have become effective under the Securities Act and such securities shall have been
sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (B) such securities shall have
been otherwise transferred, new certificates for such securities not bearing a legend restricting further transfer shall have been
delivered by the Company and subsequent public distribution of such securities shall not require registration under the Securities
Act; (C) such securities shall have ceased to be outstanding; or (D) such securities may be sold without registration pursuant
to Rule 144 promulgated under the Securities Act (or any successor rule promulgated thereafter by the Commission) (but with no
volume or other restrictions or limitations).


 


“Registration”
shall mean a registration effected by preparing and filing a registration statement or similar document in compliance with the
requirements of the Securities Act, and the applicable rules and regulations promulgated thereunder, and any such registration
statement having become effective by the Commission.


 


“Registration
Expenses” shall mean the out-of-pocket expenses of a Registration, including, without limitation, the following:


 


(A) all registration
and filing fees (including fees with respect to filings required to be made with the Financial Industry Regulatory Authority) and
any securities exchange on which the Common Stock is then listed;


 






    3


     


    

 


(B) fees and expenses
of compliance with securities or blue sky laws (including reasonable fees and disbursements of counsel for the Underwriters in
connection with blue sky qualifications of Registrable Securities);


 


(C) printing, messenger,
telephone and delivery expenses;


 


(D) reasonable fees and
disbursements of counsel for the Company;


 


(E) reasonable fees and
disbursements of all independent registered public accountants of the Company incurred specifically in connection with such Registration;
and


 


(F) reasonable fees and
expenses of one (1) legal counsel selected by the Demanding Holders initiating a Demand Registration or Underwritten Demand
to be registered for offer and sale in the applicable Registration or Underwritten Offering.


 


“Registration
Statement” shall mean any registration statement under the Securities Act that covers the Registrable Securities
pursuant to the provisions of this Agreement, including the Prospectus included in such registration statement, amendments (including
post-effective amendments) and supplements to such registration statement and all exhibits to and all material incorporated by
reference in such registration statement.


 


“Requesting
Holder” shall have the meaning given in subsection 2.1.3.


 


“Securities
Act” shall mean the Securities Act of 1933, as amended from time to time.


 


“Sponsor”
shall have the meaning given in the Preamble.


 


“Tortoise
Borrower” shall have the meaning given in the Preamble.


 


“Underwriter”
shall mean a securities dealer who purchases any Registrable Securities as principal in an Underwritten Offering and not as part
of such dealer’s market-making activities.


 


“Underwritten
Demand” shall have the meaning given in subsection 2.1.3.


 


“Underwritten
Offering” shall mean a Registration in which securities of the Company are sold to an Underwriter in a firm commitment
underwriting for distribution to the public.


 


Article 2

REGISTRATIONS


 


2.1 Demand Registration.


 


2.1.1 Request for
Registration. Subject to the provisions of subsection 2.1.4 and Section 2.3 hereof, at any time and
from time to time on or after the date the Company consummates the Business Combination, any Demanding Holder may make a written
demand for Registration of all of the then-outstanding Registrable Securities and the Company shall file with the Commission, as
soon as reasonably practicable, but in no event later than ninety (90) days following the receipt of such written demand, a Registration
Statement covering such Registrable Securities (a “Demand Registration”). Such written demand will specify
the intended methods of distribution. The Company shall use its reasonable best efforts to cause such Registration Statement to
become effective by the Commission as soon as reasonably practicable after the initial filing of the Registration Statement in
accordance with Section 3.1 of this Agreement.


 


2.1.2 Effective Registration.
Notwithstanding the provisions of subsection 2.1.1 above or any other part of this Agreement, a Registration pursuant
to a Demand Registration shall not count as a Registration unless and until (i) the Registration Statement filed with the
Commission with respect to a Registration pursuant to a Demand Registration has become effective by the Commission and (ii) the
Company has complied with all of its obligations under this Agreement with respect thereto. The Company shall not be obligated
or required to file another Registration Statement until the Registration Statement that has been previously filed with respect
to a Registration pursuant to a Demand Registration is subsequently terminated. Subject to the limitations contained in this Agreement,
the Company shall effect any Demand Registration on such appropriate registration form of the Commission (x) as shall be selected
by the Company and (y) as shall permit the disposition of the Registrable Securities in accordance with the intended method
or methods of disposition specified in the Demand Registration. If at any time a Registration Statement on Form S-3 filed with
the Commission pursuant to Section 2.1.1 is effective and a Holder provides written notice to the Company that it intends
to effect an offering of all or part of the Registrable Securities included on such Registration Statement, the Company will amend
or supplement such Registration Statement as may be necessary in order to enable such offering to take place in accordance with
the terms of this Agreement.


 






    4


     


    

 


2.1.3 Underwritten
Offering. Subject to the provisions of subsection 2.1.4 and Section 2.3 hereof, any Demanding Holder
may make a written demand for an Underwritten Offering pursuant to a Registration Statement filed with the Commission in accordance
with Section 2.1.1 (an “Underwritten Demand”). The Company shall, within ten (10) days of the
Company’s receipt of the Underwritten Demand, notify, in writing, all other Holders of such demand, and each Holder who thereafter
wishes to include all or a portion of such Holder’s Registrable Securities in such Underwritten Offering pursuant to an Underwritten
Demand (each such Holder that includes all or a portion of such Holder’s Registrable Securities in such Underwritten Offering,
a “Requesting Holder”) shall so notify the Company, in writing, within two (2) days (one (1) day
if such offering is an overnight or bought Underwritten Offering) after the receipt by the Holder of the notice from the Company.
Upon receipt by the Company of any such written notification from a Requesting Holder(s), such Requesting Holder(s) shall be entitled
to have their Registrable Securities included in the Underwritten Offering pursuant to an Underwritten Demand. All such Holders
proposing to distribute their Registrable Securities through an Underwritten Offering under this subsection 2.1.3 shall
enter into an underwriting agreement in customary form with the Underwriter(s) selected for such Underwritten Offering by the Demanding
Holders initiating the Underwritten Offering. Notwithstanding the foregoing, the Company is not obligated to effect more than an
aggregate of three (3) Underwritten Offerings pursuant to this subsection 2.1.3 and is not obligated to effect an Underwritten
Offering pursuant to this subsection 2.1.3 within ninety (90) days after the closing of an Underwritten Offering.


 


2.1.4 Reduction of
Underwritten Offering. If the managing Underwriter or Underwriters in an Underwritten Offering pursuant to a Underwritten Demand,
in good faith, advises the Company, the Demanding Holders, the Requesting Holders and other persons or entities holding Common
Stock or other equity securities of the Company that the Company is obligated to include pursuant to separate written contractual
arrangements with such persons or entities (if any) in writing that the dollar amount or number of Registrable Securities or other
equity securities of the Company requested to be included in such Underwritten Offering exceeds the maximum dollar amount or maximum
number of equity securities of the Company that can be sold in the Underwritten Offering without adversely affecting the proposed
offering price, the timing, the distribution method or the probability of success of such offering (such maximum dollar amount
or maximum number of such securities, as applicable, the “Maximum Number of Securities”), then the Company
shall include in such Underwritten Offering, as follows: (i) first, the Registrable Securities of the Demanding Holders and
the Requesting Holders (if any) (pro rata based on the respective number of Registrable Securities that each Demanding Holder and
Requesting Holder (if any) has requested be included in such Underwritten Offering and the aggregate number of Registrable Securities
that the Demanding Holders and Requesting Holders have requested be included in such Underwritten Offering (such proportion is
referred to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number of Securities;
(ii) second, to the extent that the Maximum Number of Securities has not been reached under the foregoing clause (i),
Common Stock or other equity securities of the Company that the Company desires to sell and that can be sold without exceeding
the Maximum Number of Securities; and (iii) third, to the extent that the Maximum Number of Securities has not been reached
under the foregoing clauses (i) and (ii), Common Stock or other equity securities of the Company held by
other persons or entities that the Company is obligated to include pursuant to separate written contractual arrangements with such
persons or entities and that can be sold without exceeding the Maximum Number of Securities.


 


2.1.5 Demand Registration
Withdrawal. The Demanding Holders initiating a Demand Registration pursuant to a Registration under subsection 2.1.1
shall have the right to withdraw from such Registration pursuant to such Demand Registration for any or no reason whatsoever upon
written notification to the Company of their intention to withdraw from such Registration prior to the effectiveness of the Registration
Statement filed with the Commission with respect to the Registration of their Registrable Securities pursuant to such Demand Registration.
Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred
in connection with a Registration pursuant to a Demand Registration prior to its withdrawal under this subsection 2.1.5.


 






    5


     


    

 


2.2 Piggyback
Registration.


 


2.2.1 Piggyback Rights.
If, at any time on or after the date the Company consummates a Business Combination, the Company proposes to (i) file a Registration
Statement under the Securities Act with respect to an offering of equity securities of the Company, or securities or other obligations
exercisable or exchangeable for, or convertible into equity securities of the Company, for its own account or for the account of
stockholders of the Company, other than a Registration Statement (A) filed in connection with any employee stock option or
other benefit plan, (B) for an exchange offer or offering of securities solely to the Company’s existing stockholders,
(C) for an offering of debt that is convertible into equity securities of the Company or (D) for a dividend reinvestment
plan, or (ii) consummate an Underwritten Offering for its own account or for the account of stockholders of the Company, then the
Company shall give written notice of such proposed action to all of the Holders as soon as practicable (but in the case of filing
a Registration Statement, not less than ten (10) days before the anticipated filing date of such Registration Statement), which
notice shall (x) describe the amount and type of securities to be included, the intended method(s) of distribution and the
name of the proposed managing Underwriter or Underwriters, if any, and (y) offer to all of the Holders the opportunity to
register the sale of such number of Registrable Securities as such Holders may request in writing within (a) five (5) days
in the case of filing a Registration Statement and (b) two (2) days in the case of an Underwritten Offering (unless such offering
is an overnight or bought Underwritten Offering, then one (1) day), in each case after receipt of such written notice (such Registration
a “Piggyback Registration”). The Company shall, in good faith, cause such Registrable Securities to be
included in such Piggyback Registration and shall use its best efforts to cause the managing Underwriter or Underwriters of a proposed
Underwritten Offering to permit the Registrable Securities requested by the Holders pursuant to this subsection 2.2.1
to be included in a Piggyback Registration on the same terms and conditions as any similar securities of the Company included in
such Piggyback Registration and to permit the sale or other disposition of such Registrable Securities in accordance with the intended
method(s) of distribution thereof. All such Holders proposing to include Registrable Securities in an Underwritten Offering under
this subsection 2.2.1 shall enter into an underwriting agreement in customary form with the Underwriter(s) selected
for such Underwritten Offering by the Company.


 


2.2.2 Reduction of
Piggyback Registration. If the managing Underwriter or Underwriters in an Underwritten Offering that is to be a Piggyback Registration,
in good faith, advises the Company and the Holders of Registrable Securities participating in the Piggyback Registration in writing
that the dollar amount or number of shares of the equity securities of the Company that the Company desires to sell, taken together
with (i)  the shares of equity securities of the Company, if any, as to which Registration or Underwritten Offering has been
demanded pursuant to separate written contractual arrangements with persons or entities other than the Holders of Registrable Securities
hereunder, (ii) the Registrable Securities as to which Registration or Underwritten Offering has been requested pursuant to
Section 2.2 hereof and (iii) the shares of equity securities of the Company, if any, as to which Registration
or Underwritten Offering has been requested pursuant to separate written contractual piggyback registration rights of other stockholders
of the Company, exceeds the Maximum Number of Securities, then:


 


(a) If the Registration
or Underwritten Offering is undertaken for the Company’s account, the Company shall include in any such Registration or Underwritten
Offering (A) first, the Common Stock or other equity securities of the Company that the Company desires to sell, which can
be sold without exceeding the Maximum Number of Securities; (B)  second, to the extent that the Maximum Number of Securities
has not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising their rights
to register their Registrable Securities pursuant to subsection 2.2.1 hereof, Pro Rata, which can be sold without exceeding
the Maximum Number of Securities; and (C)  third, to the extent that the Maximum Number of Securities has not been reached
under the foregoing clauses (A) and (B), Common Stock or other equity securities of the Company, if any,
as to which Registration or Underwritten Offering has been requested pursuant to written contractual piggyback registration rights
of other stockholders of the Company, which can be sold without exceeding the Maximum Number of Securities; or


 


(b) If the Registration
or Underwritten Offering is pursuant to a request by persons or entities other than the Holders of Registrable Securities, then
the Company shall include in any such Registration or Underwritten Offering (A) first, Common Stock or other equity securities
of the Company, if any, of such requesting persons or entities, other than the Holders of Registrable Securities, which can be
sold without exceeding the Maximum Number of Securities; (B) second, to the extent that the Maximum Number of Securities has
not been reached under the foregoing clause (A), the Registrable Securities of Holders exercising their rights to register
their Registrable Securities pursuant to subsection 2.2.1, Pro Rata, which can be sold without exceeding the Maximum
Number of Securities; (C) third, to the extent that the Maximum Number of Securities has not been reached under the foregoing
clauses (A) and (B), Common Stock or other equity securities of the Company that the Company desires to
sell, which can be sold without exceeding the Maximum Number of Securities; and (D) fourth, to the extent that the Maximum
Number of Securities has not been reached under the foregoing clauses (A), (B) and (C), Common
Stock or other equity securities of the Company for the account of other persons or entities that the Company is obligated to register
pursuant to separate written contractual arrangements with such persons or entities, which can be sold without exceeding the Maximum
Number of Securities.


 






    6


     


    

 


2.2.3 Piggyback Registration
Withdrawal. Any Holder of Registrable Securities shall have the right to withdraw from a Piggyback Registration for any or
no reason whatsoever upon written notification to the Company and the Underwriter or Underwriters (if any) of his, her or its intention
to withdraw from such Piggyback Registration prior to the effectiveness of the Registration Statement filed with the Commission
with respect to such Piggyback Registration. The Company (whether on its own good faith determination or as the result of a request
for withdrawal by persons pursuant to separate written contractual obligations) may withdraw a Registration Statement filed with
the Commission in connection with a Piggyback Registration at any time prior to the effectiveness of such Registration Statement.
Notwithstanding anything to the contrary in this Agreement, the Company shall be responsible for the Registration Expenses incurred
in connection with the Piggyback Registration prior to its withdrawal under this subsection 2.2.3.


 


2.2.4 Unlimited Piggyback
Registration Rights. For purposes of clarity, any Registration or Underwritten Offering effected pursuant to Section 2.2
hereof shall not be counted as an Underwritten Offering pursuant to an Underwritten Demand effected under Section 2.1
hereof.


 


2.3 Restrictions
on Registration Rights. If (A) the Holders have requested an Underwritten Offering pursuant to an Underwritten Demand
and the Company and the Holders are unable to obtain the commitment of underwriters to firmly underwrite the offer; or (B) the
Holders have requested a Demand Registration or an Underwritten Offering pursuant to an Underwritten Demand and in the good faith
judgment of the Board such Registration or Underwritten Offering would be seriously detrimental to the Company and the Board concludes
as a result that it is essential to defer the filing of such Registration Statement or the undertaking of such Underwritten Offering
at such time, then in each case the Company shall furnish to such Holders a certificate signed by the Chairman of the Board stating
that in the good faith judgment of the Board it would be seriously detrimental to the Company for such Registration Statement to
be filed or to undertake such Underwritten Offering in the near future and that it is therefore essential to defer the filing of
such Registration Statement or undertaking of such Underwritten Offering. In such event, the Company shall have the right to defer
such filing or offering for a period of not more than thirty (30) days; provided, however, that the Company shall not defer
its obligation in this manner more than once in any twelve (12)-month period. Notwithstanding anything to the contrary contained
in this Agreement, no Registration or Underwritten Offering shall be effected or permitted and no Registration Statement shall
become effective, with respect to any Registrable Securities held by any Holder, until after the expiration of the Founder Shares
Lock-up Period or the Private Placement Lock-up Period, as the case may be.


 


Article 3

COMPANY PROCEDURES


 


3.1 General Procedures.
If at any time on or after the date the Company consummates a Business Combination the Company is required to effect the Registration
of Registrable Securities pursuant to this Agreement, the Company shall use its best efforts to effect such Registration to permit
the sale of such Registrable Securities in accordance with the intended plan of distribution thereof, and pursuant thereto the
Company shall, as expeditiously as possible and to the extent applicable:


 


3.1.1 prepare and file
with the Commission as soon as practicable a Registration Statement with respect to such Registrable Securities and use its reasonable
best efforts to cause such Registration Statement to become effective and remain effective until all Registrable Securities covered
by such Registration Statement have been sold or are no longer outstanding (such period, the “Effectiveness Period”);


 






    7


     


    

 


3.1.2 prepare and file
with the Commission such amendments and post-effective amendments to the Registration Statement, and such supplements to the Prospectus,
as may be reasonably requested by the Demanding Holders or any Underwriter or as may be required by the rules, regulations or instructions
applicable to the registration form used by the Company or by the Securities Act or rules and regulations thereunder to keep the
Registration Statement effective until all Registrable Securities covered by such Registration Statement are sold in accordance
with the intended plan of distribution set forth in such Registration Statement or supplement to the Prospectus or are no longer
outstanding;


 


3.1.3 prior to filing
a Registration Statement or Prospectus, or any amendment or supplement thereto, furnish without charge to the Underwriters, if
any, and the Holders of Registrable Securities included in such Registration or Underwritten Offering, and such Holders’
legal counsel, copies of such Registration Statement as proposed to be filed, each amendment and supplement to such Registration
Statement (in each case including all exhibits thereto and documents incorporated by reference therein), the Prospectus (including
each preliminary Prospectus) and such other documents as the Underwriters and the Holders of Registrable Securities included in
such Registration or the legal counsel for any such Holders may reasonably request in order to facilitate the disposition of the
Registrable Securities owned by such Holders; provided, that the Company will not have any obligation to provide any document
pursuant to this clause that is available on the Commission’s EDGAR system;


 


3.1.4 prior to any public
offering of Registrable Securities, use its best efforts to (i) register or qualify the Registrable Securities covered by
the Registration Statement under such securities or “blue sky” laws of such jurisdictions in the United States as the
Holders of Registrable Securities included in such Registration Statement (in light of their intended plan of distribution) may
request and (ii) take such action necessary to cause such Registrable Securities covered by the Registration Statement to
be registered with or approved by such other governmental authorities as may be necessary by virtue of the business and operations
of the Company and do any and all other acts and things that may be necessary or advisable to enable the Holders of Registrable
Securities included in such Registration Statement to consummate the disposition of such Registrable Securities in such jurisdictions;
provided, however, that the Company shall not be required to qualify generally to do business in any jurisdiction where
it would not otherwise be required to qualify or take any action to which it would be subject to general service of process or
taxation in any such jurisdiction where it is not then otherwise so subject;


 


3.1.5 cause all such
Registrable Securities to be listed on each securities exchange or automated quotation system on which similar securities issued
by the Company are then listed;


 


3.1.6 provide a transfer
agent or warrant agent, as applicable, and registrar for all such Registrable Securities no later than the effective date of such
Registration Statement;


 


3.1.7 advise each seller
of such Registrable Securities, promptly after it shall receive notice or obtain knowledge thereof, of the issuance of any stop
order by the Commission suspending the effectiveness of such Registration Statement or the initiation or threatening of any proceeding
for such purpose and promptly use its reasonable best efforts to prevent the issuance of any stop order or to obtain its withdrawal
if such stop order should be issued;


 


3.1.8 during the Effectiveness
Period, furnish a conformed copy of each filing of any Registration Statement or Prospectus or any amendment or supplement to such
Registration Statement or Prospectus or any document that is to be incorporated by reference into such Registration Statement or
Prospectus, promptly after such filing of such documents with the Commission to each seller of such Registrable Securities or its
counsel; provided, that the Company will not have any obligation to provide any document pursuant to this clause that is
available on the Commission’s EDGAR system;


 


3.1.9 notify the Holders
at any time when a Prospectus relating to such Registration Statement is required to be delivered under the Securities Act, of
the happening of any event as a result of which the Prospectus included in such Registration Statement, as then in effect, includes
a Misstatement, and then to correct such Misstatement as set forth in Section 3.4 hereof;


 






    8


     


    

 


3.1.10 permit a representative
of the Holders, the Underwriters, if any, and any attorney or accountant retained by such Holders or Underwriter to participate,
at each such person’s own expense, in the preparation of the Registration Statement or the Prospectus, and cause the Company’s
officers, directors and employees to supply all information reasonably requested by any such representative, Underwriter, attorney
or accountant in connection with the Registration; provided, however, that such representatives or Underwriters enter into
a confidentiality agreement, in form and substance reasonably satisfactory to the Company, prior to the release or disclosure of
any such information;


 


3.1.11 obtain a comfort
letter from the Company’s independent registered public accountants in the event of an Underwritten Offering, in customary
form and covering such matters of the type customarily covered by comfort letters as the managing Underwriter may reasonably request,
and reasonably satisfactory to a majority-in-interest of the participating Holders;


 


3.1.12 on the date the
Registrable Securities are delivered for sale pursuant to such Registration, obtain an opinion, dated such date, of counsel representing
the Company for the purposes of such Registration, addressed to the placement agent or sales agent, if any, and the Underwriters,
if any, covering such legal matters with respect to the Registration in respect of which such opinion is being given as the placement
agent, sales agent, or Underwriter may reasonably request and as are customarily included in such opinions and negative assurance
letters, and reasonably satisfactory to such placement agent, sales agent or Underwriter;


 


3.1.13 in the event of
any Underwritten Offering, enter into and perform its obligations under an underwriting agreement, in usual and customary form,
with the managing Underwriter of such offering;


 


3.1.14 make available
to its security holders, as soon as reasonably practicable, an earnings statement covering the period of at least twelve (12) months
beginning with the first day of the Company’s first full calendar quarter after the effective date of the Registration Statement
which satisfies the provisions of Section 11(a) of the Securities Act and Rule 158 thereunder (or any successor rule
promulgated thereafter by the Commission);


 


3.1.15 use its reasonable
efforts to make available senior executives of the Company to participate in customary “road show” presentations that
may be reasonably requested by the Underwriter in any Underwritten Offering; and


 


3.1.16 otherwise, in
good faith, cooperate reasonably with, and take such customary actions as may reasonably be requested by the Holders, in connection
with such Registration.


 


3.2 Registration
Expenses. The Registration Expenses in respect of all Registrations shall be borne by the Company. It is acknowledged by
the Holders that the Holders shall bear all incremental selling expenses relating to the sale of Registrable Securities, such as
Underwriters’ commissions and discounts, brokerage fees, Underwriter marketing costs and, other than as set forth in the
definition of “Registration Expenses,” all reasonable fees and expenses of any legal counsel representing the Holders.


 


3.3 Requirements
for Participation in Underwritten Offerings. No person may participate in any Underwritten Offering for equity securities
of the Company pursuant to a Registration initiated by the Company hereunder unless such person (i)  agrees to sell such person’s
securities on the basis provided in any underwriting arrangements approved by the Company and (ii) completes and executes
all customary questionnaires, powers of attorney, indemnities, lock-up agreements, underwriting agreements and other customary
documents as may be reasonably required under the terms of such underwriting arrangements.


 


3.4 Suspension
of Sales; Adverse Disclosure. Upon receipt of written notice from the Company that a Registration Statement or Prospectus
contains a Misstatement, each of the Holders shall forthwith discontinue disposition of Registrable Securities until he, she or
it has received copies of a supplemented or amended Prospectus correcting the Misstatement (it being understood that the Company
hereby covenants to prepare and file such supplement or amendment as soon as practicable after the time of such notice), or until
he, she or it is advised in writing by the Company that the use of the Prospectus may be resumed. If the filing, initial effectiveness
or continued use of a Registration Statement in respect of any Registration or Underwritten Offering at any time would require
the Company to make an Adverse Disclosure or would require the inclusion in such Registration Statement of financial statements
that are unavailable to the Company for reasons beyond the Company’s control, the Company may, upon giving prompt written
notice of such action to the Holders, delay the filing or initial effectiveness of, or suspend use of, such Registration Statement
for the shortest period of time, but in no event more than thirty (30) days, determined in good faith by the Company to be necessary
for such purpose. In the event the Company exercises its rights under the preceding sentences in this Section 3.4, the Holders
agree to suspend, immediately upon their receipt of the notices referred to in this Section 3.4, their use of the Prospectus
relating to any Registration in connection with any sale or offer to sell Registrable Securities. The Company shall immediately
notify the Holders of the expiration of any period during which it exercised its rights under this Section 3.4.


 






    9


     


    

 


3.5 Reporting
Obligations. As long as any Holder shall own Registrable Securities, the Company, at all times while it shall be a reporting
company under the Exchange Act, covenants to file timely (or obtain extensions in respect thereof and file within the applicable
grace period) all reports required to be filed by the Company after the date hereof pursuant to Section 13(a) or 15(d) of
the Exchange Act. The Company further covenants that it shall take such further action as any Holder may reasonably request, all
to the extent required from time to time to enable such Holder to sell shares of Registrable Securities held by such Holder without
registration under the Securities Act within the limitation of the exemptions provided by Rule 144 promulgated under the Securities
Act (or any successor rule promulgated thereafter by the Commission), including providing any legal opinions. Upon the request
of any Holder, the Company shall deliver to such Holder a written certification of a duly authorized officer as to whether it has
complied with such requirements.


 


Article 4

INDEMNIFICATION AND CONTRIBUTION


 


4.1 Indemnification.


 


4.1.1 The Company agrees
to indemnify, to the extent permitted by law, each Holder of Registrable Securities, its officers and directors and each person
who controls such Holder (within the meaning of the Securities Act) (collectively, the “Holder Indemnified Persons”)
against all losses, claims, damages, liabilities and expenses (including reasonable attorneys’ fees and inclusive of all
reasonable attorneys’ fees arising out of the enforcement of each such persons’ rights under this Section 4.1)
resulting from any untrue or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary
Prospectus or any amendment thereof or supplement thereto or any omission or alleged omission of a material fact required to be
stated therein or necessary to make the statements therein, in the light of the circumstances in which they were made, not misleading,
except insofar as the same are caused by or contained in any information furnished in writing to the Company by or on behalf of
such Holder Indemnified Person specifically for use therein.


 


4.1.2 In connection with
any Registration Statement in which a Holder of Registrable Securities is participating, such Holder shall furnish to the Company
in writing such information and affidavits as the Company reasonably requests for use in connection with any such Registration
Statement or Prospectus and, to the extent permitted by law, shall, severally and not jointly, indemnify the Company, its directors
and officers and agents and each person who controls the Company (within the meaning of the Securities Act) against any losses,
claims, damages, liabilities and expenses (including reasonable attorneys’ fees and inclusive of all reasonable attorneys’
fees arising out of the enforcement of each such persons’ rights under this Section 4.1) resulting from any untrue
or alleged untrue statement of material fact contained in any Registration Statement, Prospectus or preliminary Prospectus or any
amendment thereof or supplement thereto or any omission or alleged omission of a material fact required to be stated therein or
necessary to make the statements therein, in the light of the circumstances in which they were made, not misleading, but only to
the extent that the same are made in reliance on and in conformity with information relating to the Holder so furnished in writing
to the Company by or on behalf of such Holder specifically for use therein. In no event shall the liability of any selling Holder
hereunder be greater in amount than the net proceeds received by such Holder from the sale of Registrable Securities pursuant to
such Registration Statement giving rise to such indemnification obligation.


 






    10


     


    

 


4.1.3 Any person entitled
to indemnification herein shall (i)  give prompt written notice to the indemnifying party of any claim with respect to which
it seeks indemnification (provided that the failure to give prompt notice shall not impair any person’s right to indemnification
hereunder to the extent such failure has not materially prejudiced the indemnifying party) and (ii) unless in such indemnified
party’s reasonable judgment a conflict of interest between such indemnified and indemnifying parties may exist with respect
to such claim or there may be reasonable defenses available to the indemnified party that are different from or additional to those
available to the indemnifying party, permit such indemnifying party to assume the defense of such claim with counsel reasonably
satisfactory to the indemnified party. If such defense is assumed, the indemnifying party shall not be subject to any liability
for any settlement made by the indemnified party without its consent (but such consent shall not be unreasonably withheld). An
indemnifying party who is not entitled to, or elects not to, assume the defense of a claim shall not be obligated to pay the fees
and expenses of more than one counsel for all parties indemnified by such indemnifying party with respect to such claim, unless
in the reasonable judgment of any indemnified party a conflict of interest may exist between such indemnified party and any other
of such indemnified parties with respect to such claim. No indemnifying party shall, without the consent of the indemnified party,
consent to the entry of any judgment or enter into any settlement which cannot be settled in all respects by the payment of money
(and such money is so paid by the indemnifying party pursuant to the terms of such settlement) or which settlement does not include
as an unconditional term thereof the giving by the claimant or plaintiff to such indemnified party of a release from all liability
in respect to such claim or litigation.


 


4.1.4 The indemnification
provided for under this Agreement shall remain in full force and effect regardless of any investigation made by or on behalf of
the indemnified party or any officer, director or controlling person of such indemnified party and shall survive the transfer of
securities.


 


4.1.5 If the indemnification
provided under Section 4.1 is held by a court of competent jurisdiction to be unavailable to an indemnified party in
respect of any losses, claims, damages, liabilities and expenses referred to herein, then the indemnifying party, in lieu of indemnifying
the indemnified party, shall to the extent permitted by law contribute to the amount paid or payable by the indemnified party as
a result of such losses, claims, damages, liabilities and expenses in such proportion as is appropriate to reflect the relative
fault of the indemnifying party and the indemnified party, as well as any other relevant equitable considerations. The relative
fault of the indemnifying party and indemnified party shall be determined by a court of law by reference to, among other things,
whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact
relates to information supplied by such indemnifying party or such indemnified party and the indemnifying party’s and indemnified
party’s relative intent, knowledge, access to information and opportunity to correct or prevent such action; provided,
however, that the liability of any Holder under this subsection 4.1.5 shall be limited to the amount of the net
proceeds received by such Holder in such offering giving rise to such liability. The amount paid or payable by a party as a result
of the losses or other liabilities referred to above shall be deemed to include, subject to the limitations set forth in subsections 4.1.1,
4.1.2 and 4.1.3 above, any legal or other fees, charges or expenses reasonably incurred by such party in connection
with any investigation or proceeding. The parties hereto agree that it would not be just and equitable if contribution pursuant
to this subsection 4.1.5 were determined by pro rata allocation or by any other method of allocation, which does not
take account of the equitable considerations referred to in this subsection 4.1.5. No person guilty of fraudulent misrepresentation
(within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution pursuant to this subsection 4.1.5
from any person who was not guilty of such fraudulent misrepresentation.


 


Article 5

MISCELLANEOUS


 


5.1 Notices.
Any notice or communication under this Agreement must be in writing and given by (i) deposit in the United States mail, addressed
to the party to be notified, postage prepaid and registered or certified with return receipt requested, (ii) delivery in person
or by courier service providing evidence of delivery or (iii) transmission by hand delivery, telecopy, telegram, facsimile
or email. Each notice or communication that is mailed, delivered or transmitted in the manner described above shall be deemed sufficiently
given, served, sent, and received, in the case of mailed notices, on the third (3rd) business day following the date on which it
is mailed, in the case of notices delivered by courier service, hand delivery, telecopy or telegram, at such time as it is delivered
to the addressee (with the delivery receipt or the affidavit of messenger) or at such time as delivery is refused by the addressee
upon presentation, and in the case of notices delivered by facsimile or email, at such time as it is successfully transmitted to
the addressee. Any notice or communication under this Agreement must be addressed, if to the Company, to: 452 Fifth Avenue, 14th
Floor, New York, NY 10018, or by email at: SSchnitzer@tortoiseadvisors.com, if to the Sponsor or Tortoise Borrower, to: 11550 Ash
Street, Suite 300, Leawood, KS 66211, or by email at: JKruske@tortoiseadvisors.com, and, if to any Holder, to the address of such
Holder as it appears in the applicable register for the Registrable Securities or such other address as may be designated in writing
by such Holder (including on the signature pages hereto). Any party may change its address for notice at any time and from time
to time by written notice to the other parties hereto, and such change of address shall become effective thirty (30) days after
delivery of such notice as provided in this Section 5.1.


 






    11


     


    

 


5.2 Assignment;
No Third Party Beneficiaries.


 


5.2.1 This Agreement
and the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company in whole or in
part.


 


5.2.2 This Agreement
and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties and its successors.


 


5.2.3 This Agreement
shall not confer any rights or benefits on any persons that are not parties hereto, other than as expressly set forth in this Agreement
and Section 5.2 hereof.


 


5.2.4 No assignment by
any party hereto of such party’s rights, duties and obligations hereunder shall be binding upon or obligate the Company unless
and until the Company shall have received (i)  written notice of such assignment as provided in Section 5.1 hereof
and (ii) the written agreement of the assignee, in a form reasonably satisfactory to the Company, to be bound by the terms
and provisions of this Agreement (which may be accomplished by an addendum or certificate of joinder to this Agreement). Any transfer
or assignment made other than as provided in this Section 5.2 shall be null and void.


 


5.3 Counterparts.
This Agreement may be executed in multiple counterparts (including facsimile or PDF counterparts), each of which shall be deemed
an original, and all of which together shall constitute the same instrument, but only one of which need be produced.


 


5.4 Governing
Law; Venue. NOTWITHSTANDING THE PLACE WHERE THIS AGREEMENT MAY BE EXECUTED BY ANY OF THE PARTIES HERETO, THE PARTIES EXPRESSLY
AGREE THAT THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED UNDER THE LAWS OF THE STATE OF NEW YORK AS APPLIED TO AGREEMENTS AMONG
NEW YORK RESIDENTS ENTERED INTO AND TO BE PERFORMED ENTIRELY WITHIN NEW YORK, WITHOUT REGARD TO THE CONFLICT OF LAW PROVISIONS
OF SUCH JURISDICTION.


 


5.5 Amendments
and Modifications. Upon the written consent of the Company and the Holders of at least a majority in interest of the Registrable
Securities at the time in question, compliance with any of the provisions, covenants and conditions set forth in this Agreement
may be waived, or any of such provisions, covenants or conditions may be amended or modified; provided, however, that notwithstanding
the foregoing, any amendment hereto or waiver hereof that adversely affects one Holder, solely in his, her or its capacity as a
holder of the shares of capital stock of the Company, in a manner that is materially different from the other Holders (in such
capacity) shall require the consent of the Holder so affected. No course of dealing between any Holder or the Company and any other
party hereto or any failure or delay on the part of a Holder or the Company in exercising any rights or remedies under this Agreement
shall operate as a waiver of any rights or remedies of any Holder or the Company. No single or partial exercise of any rights or
remedies under this Agreement by a party shall operate as a waiver or preclude the exercise of any other rights or remedies hereunder
or thereunder by such party.


 


5.6 Other Registration
Rights. The Company represents and warrants that no person, other than a Holder of Registrable Securities, has any right
to require the Company to register any securities of the Company for sale or to include such securities of the Company in any Registration
filed by the Company for the sale of securities for its own account or for the account of any other person. Further, the Company
represents and warrants that this Agreement supersedes any other registration rights agreement or agreement with similar terms
and conditions and in the event of a conflict between any such agreement or agreements and this Agreement, the terms of this Agreement
shall prevail.


 


5.7 Term.
This Agreement shall terminate upon the earlier of (i) the tenth (10th) anniversary of the date of this Agreement and (ii)
the date as of which the Holders cease to hold any Registrable Securities. The provisions of Article 4 shall survive
any termination.


 


[Signature Page Follows]


 




    12


     


    

 


IN WITNESS WHEREOF,
the undersigned have caused this Agreement to be executed as of the date first written above.


 


	 	COMPANY:
	 	 
	 	TORTOISE ACQUISITION CORP.,
	 	a Delaware corporation
	 	 	 
	 	By:	/s/ Vincent T.
    Cubbage
	 	Name:	Vincent T. Cubbage
	 	Title:	President and Chief Executive Officer
	 	 	 
	 	HOLDERS:
	 	 
	 	TORTOISE SPONSOR LLC, 
	 	a Delaware limited liability company
	 	 	 
	 	By:	/s/ Connie Savage
	 	Name:	Connie Savage
	 	Title:	Chief Financial Officer, Secretary and Treasurer
	 	 	 
	 	TORTOISE BORROWER LLC, 
	 	a Delaware limited liability company
	 	 	 
	 	By:	/s/ Connie Savage
	 	Name:	Connie Savage
	 	Title:	Officer
	 	 	 
	 	ATLAS POINT ENERGY INFRASTRUCTURE FUND, LLC, 
	 	a Delaware limited liability company
	 	 	 
	 	By:	/s/ Adam Karpf
	 	Name:	Adam Karpf
	 	Title:	Managing Director and Portfolio Manager
	 	 	 
	 	Address for notice:
	 	 
	 	1177 Avenue of the Americas, 42nd Floor, 
	 	New York, NY 10036
	 	Attention: Adam Karpf
	 	Fax:
	 	Electronic Mail: Adam.Karpf@cibc.com
	 	 
	 	/s/ Andrew J.
    Orekar
	 	Andrew J. Orekar
	 	 
	 	Address for notice:
	 	 
	 	4 Dogwood Lane, 
	 	Greenwich, CT 06830
	 	Attention: Andrew J. Orekar
	 	Fax: 
	 	Electronic Mail: aorekar@gaslogmlp.com



 


[Signature Page to Registration Rights
Agreement]


 






     


     


    

  





	 	/s/
    Frank M. Semple
	 	Frank M. Semple
	 	 
	 	Address for notice:
	 	 
	 	 
	 	Attention: Frank M. Semple
	 	Fax: 
	 	Electronic Mail:
	 	 
	 	/s/
    Sidney L. Tassin
	 	Sidney L. Tassin
	 	 
	 	Address for notice:
	 	 
	 	4414 Lively Ln.
	 	Dallas, TX 75220
	 	Attention: Sidney L. Tassin
	 	Fax: 214-871-6711
	 	Electronic Mail: stassin@cartaenergy.com







 


[Signature Page to Registration Rights
Agreement]