Document:

SECURED PROMISSORY NOTE AND EXCLUSIVE OPTION
AGREEMENT

 

 

US $80,000

Dallas, Texas

June 29, 2018

 

For good
and valuable consideration, BFIT BRANDS, LLC, an Arizona limited
liability company, (“Maker”), hereby makes and delivers this Secured Promissory Note and Exclusive Option Agreement
(this “Note”) in favor of ROCKY MOUNTAIN
HIGH BRANDS,
INC., a Nevada corporation or its assigns (“Holder”),
and hereby agree as follows:

 

1.                                     
Principal Obligation and Interest. For value received, Maker promises
to pay to Holder, at the address set forth in Section 16 hereof or at such other place as Holder may designate in writing, in currently
available funds of the United States, the principal sum of Eighty Thousand Dollars ($80,000). Maker’s obligation under
this Note shall accrue interest at the rate of eight percent (8.0%) per annum from the date hereof until paid in full. Interest
shall be computed on the basis of
a 365-day year or 366-day year,
as applicable, and actual days
lapsed.

 

2.                                     
Payment Terms.
Maker agrees to remit payment in full of all principal and interest due hereunder to Holder on or before March 29, 2019.

 

All payments
shall be applied first to interest,
then to principal, and shall be
credited to the Maker's account
on the date that such payment is
physically received by the Holder.

 

Maker shall have the right to prepay all or any part
of the principal under this Note without penalty.

 

		3.	Grant of Security Interest. As collateral security for the
prompt, complete, and timely satisfaction of all present and future indebtedness, liabilities, duties, and obligations of Maker
to Holder evidenced by or arising under this Note, and including, without limitation, all principal and interest payable under
this Note, any future advances added to the principal amount due hereunder, and all attorneys’ fees, costs and expenses incurred
by Holder in the collection or enforcement of the same (collectively, the “Obligations”), Maker hereby pledges,
assigns and grants to Holder a continuing security interest and lien in all of Maker’s right, title and interest in and to
the property, whether now owned or hereafter acquired by Maker and whether now existing or hereafter coming into existence or acquired,
including the proceeds of any disposition thereof, described on Exhibit “A” attached hereto and incorporated herein
by this reference (collectively, the “Collateral”). As applicable, the terms of this Note with respect to Maker’s
granting of a security interest in the Collateral to Holder shall be deemed to be a security agreement under applicable
provisions of the Uniform Commercial Code (“UCC”), with Maker as the debtor and Holder as the secured party.

 

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		4.	Perfection. Upon the execution and delivery of this Note, Maker
authorizes Holder to file such financing statements and other documents in such offices as shall be necessary or as Holder may
reasonably deem necessary to perfect and establish the priority of the liens granted by this Note, including any amendments, modifications,
extensions or renewals thereof. Maker agrees, upon Holder’s request, to take all such actions as shall be necessary or as
Holder may reasonably request to perfect and establish the priority of the liens granted by this Note, including any amendments,
modifications, extensions or renewals thereof.

 

		5.	Representations and Warranties of Maker.
Maker hereby represents and warrants the following to Holder:

 

a.                                 
The Maker is a limited liability company validly existing and in good standing under the laws
of the State of Arizona and has the requisite corporate power to own, lease and operate its properties and assets and to conduct
its business as it is now being conducted.

 

b.                                     
Maker and those executing this Note on its behalf have the full right, power, and authority
to execute, deliver and perform the Obligations under this Note, which are not prohibited or restricted under the articles of organization
or operating agreement of Maker. This Note has been duly executed and delivered by
an authorized officer of Maker and constitutes a valid and legally binding obligation of Maker enforceable in accordance with its
terms. The execution, delivery and performance of this Note by the Maker, and the consummation by the Maker of the transactions
contemplated hereby, have been duly and validly authorized by all necessary corporate
action.

 

c.                                      
The execution of this Note and Maker’s compliance with the terms, conditions and provisions
hereof does not conflict with or violate any provision of any agreement, contract, lease, deed of trust, indenture, or instrument
to which Maker is a party or by which Maker is bound, or constitute a default thereunder or result in the imposition of any lien,
charge, encumbrance, claim or security interest of any nature whatsoever upon any of the Collateral.

 

d.                                    
The security interest granted hereby in and to the Collateral constitutes a present, valid,
binding and enforceable security interest as collateral security for the Obligations, and, except as to leased equipment or purchase-money
encumbrances existing as of the date of this Note as expressly disclosed to Holder in writing, such interests, upon perfection, will be senior
and prior to any liens, encumbrances, charges, title defects, interests and rights of any others with respect to such Collateral.

 

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		6.	Covenants of Maker. For so long as any Obligations remain
outstanding:

 

a.                                      
Maker shall not sell, assign or transfer any of the Collateral, or any part thereof or interest
therein, except in the ordinary course of the business of Maker;

 

b.                                     
Maker shall pay or cause to be paid promptly when due all taxes and assessments on the Collateral;
and

 

c.                                      
Maker shall keep Holder reasonably apprised, in writing, as to the current location of all
of the Collateral, providing Holder with current information including any identifying serial numbers with respect to the Collateral
so the Holder may perfect and maintain the priority of its security interest therein.

 

 

7.                                     
Defaults. The following shall be events of default under this Note:

 

a.                                      
Maker’s failure to remit any payment under this Note on before the date due, if such
failure is not cured in full within five (5) days of written notice of default;

 

b.                                     
Maker’s failure to perform or breach of any non-monetary obligation or covenant set
forth in this Note or in any other written agreement between Maker and Holder if such failure is not cured in full within ten (10)
days following delivery of written notice thereof from Holder to Maker;

 

c.                                      
If Maker is dissolved, whether pursuant to any applicable articles of organization or operating
agreement, and/or any applicable laws, or otherwise;

 

d.                                    
Default in the Maker’s
obligation for borrowed money,
other than this Note, which shall continue
for a period of twenty (20) days;

 

e.                                      
The commencement of any action
or proceeding which affects the Collateral
or title thereto or the interest of Holder
in the Collateral;

 

f.                                        The entry of
a decree or order by a court having jurisdiction in
the premises adjudging the Maker
bankrupt or insolvent, or approving as properly
filed a petition seeking reorganization, arrangement,
adjustment or composition of or in respect of
the Maker under the federal
Bankruptcy Code or any other applicable federal or state law, or appointing a receiver,
liquidator, assignee or trustee of
the Maker, or any substantial part if
its property, or ordering
the winding up or liquidation of
its affairs, and the continuance of any
such decree or order unstayed and in
effect for a period
of twenty (60) days;

 

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g.                                     
Maker’s institution
of proceedings to be adjudicated
a bankrupt or insolvent, or the
consent by it to the institution of bankruptcy
or insolvency proceedings against it, or
its filing of a petition or answer
or consent seeking reorganization or
relief under the federal Bankruptcy
Code or any other applicable federal or
state law, or its consent
to the filing of any such
petition or to the appointment of
a receiver, liquidator, assignee or trustee
of the company, or of any substantial
part of its property, or its making
of an assignment for the benefit of creditors
or the admission by it in writing of
its inability to pay its debts generally as
they become due,
or the taking of corporate action by
the Maker in furtherance of any
such action; or

 

8.                                     
Rights and Remedies of Holder. Upon the occurrence of an event of default by
Maker under this Note, then, in addition to all other rights and remedies at law or in equity,
Holder may exercise any one or more of the following rights and remedies:

 

a.                                      
Accelerate the time for payment of all amounts payable under this Note by written notice thereof
to Maker, whereupon all such amounts shall be immediately due and payable.

 

b.                                     
Pursue and enforce all of the rights and remedies provided to a secured party with respect
to the Collateral under the Uniform Commercial Code.

 

c.                                      
Make such appearance, disburse such sums,
and take such action as Holder
deems reasonably necessary,
in its discretion, to protect Holder’s
interest, including but not limited to
(i) disbursement of attorneys’
fees, (ii) entry upon the Maker’s
property to make repairs to the
Collateral, and (iii) procurement
of satisfactory insurance. Any amounts
disbursed by Holder pursuant to
this Section, with
interest thereon, shall become additional
indebtedness of the Maker secured by the Collateral
and shall be immediately due and payable
and shall bear interest from the
date of disbursement at the default
rate stated in this Note.
Nothing contained in this Section
shall require Holder to incur
any expense or take any action.

 

d.                                     Require Maker to assemble the Collateral and make it available to
the Maker at the place to be designated by
the Holder which is reasonably convenient to both parties. The Holder may sell all
or any part of the Collateral as a whole or
in part either by public auction, private
sale, or other method of disposition. The Holder may bid at
any public sale on all or any portion of
the Collateral. Unless the Collateral
threatens to decline speedily in value,
Holder shall give Maker
reasonable notice of the time and
place of any public sale or of the time
after which any private sale or
other disposition of the Collateral is
to be made, and notice given at least
10 days before the time
of the sale or other disposition shall
be conclusively presumed to be
reasonable.

 

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e.                                      
Pursue any other rights or remedies available to Holder at law or in equity.

 

9.                                     
Interest To Accrue Upon Default. Upon
the occurrence of an event of default by Maker under this Note, the balance then owing under the terms of this Note shall accrue
interest at the rate of eighteen percent (18.0%) per annum from the date of default until Holder is satisfied in full.

 

10.                              
Full Recourse. The liability of Maker for the Obligations shall not be limited
to the Collateral, and Maker shall have full liability therefor beyond the Collateral. In the event of a default under this Note,
Holder shall dispose of the Collateral prior to any disposition, by judicial process or otherwise, of any other assets of the Maker.
If, after disposition of the Collateral, a deficiency balance remains under this Note, Maker may dispose of any and all
other assets of the Maker by judicial levy or execution in the manner provided by applicable law.
The officers, managers, members, employees and agents of the company shall have no personal liability associated with this
Note.

 

11.                              
Representation of Counsel. Maker acknowledges that they have consulted with
or have had the opportunity to consult with Maker’s legal counsel prior to executing this Note. This Note has been freely
negotiated by Maker and Holder and any rule of construction to the effect that any ambiguities are to be resolved against the drafting
party shall not be employed in the interpretation of this Note.

 

12.                              
Choice of Laws; Actions. This Note shall be constructed and construed in accordance
with the internal substantive laws of the State of Texas, without regard to the choice
of law principles of said State. Maker acknowledges that this Note has been negotiated in Dallas, Texas.
Accordingly, the exclusive venue of any action, suit, counterclaim or cross claim arising under, out of, or in connection
with this Note shall be the state or federal courts in Dallas County, Texas.
Maker hereby consents to the personal jurisdiction of any court of competent subject matter jurisdiction sitting in Dallas
County, Texas.

 

13.                              
Usury Savings Clause. Maker expressly agrees and acknowledges that Maker and
Holder intend and agree that this Note shall not be subject to the usury laws of any state other than the State of Texas.
Notwithstanding anything contained in this Note to the contrary, if collection from
Maker of interest at the rate set forth herein would be contrary to applicable
laws of such State, then the applicable interest rate upon default shall be the highest interest rate that may be collected from
Maker under applicable laws at such time.

 

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14.                              
Costs of Collection. Should the indebtedness represented by this Note, or any
part hereof, be collected at law, in equity,
or in any bankruptcy, receivership or other court proceeding, or this Note be placed in the hands of any attorney for collection
after default, Maker agrees to pay, in addition to the principal and interest due
hereon, all reasonable attorneys’ fees, plus all other reasonable costs and expenses of collection and enforcement, including
any reasonable fees incurred in connection with such proceedings or collection of the Note and/or enforcement of Holder’s
rights with respect to the administration, supervision, preservation or protection of, or realization upon, any Collateral securing
payment hereof.

 

15.                              
Miscellaneous.

 

a.                                      
This Note shall be binding upon Maker and shall inure to the benefit of Holder and its successors,
assigns, heirs, and legal representatives.

 

b.                                     
Any failure or delay by Holder to insist upon the strict performance of any term, condition,
covenant or agreement of this Note, or to exercise any right, power or remedy hereunder shall not constitute a waiver of any such
term, condition, covenant, agreement, right, power or remedy.

 

c.                                      
Any provision of this Note that is unenforceable shall be severed from this Note to the extent
reasonably possible without invalidating or affecting the intent, validity or enforceability of any other provision of this Note.

 

d.                                    
This Note may not be modified or amended in any respect except in a writing executed by the
party to be charged.

 

e.                                      
Time is of the essence.

 

16.                              
Notices. All notices required to be given under this Note shall be given as
follows or at such other address as a party may designate by written notice to the other parties:

 

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To the Maker:

 

BFIT Brands, LLC

 

Attn: Erik Rothchild

6645 E. Gelding Dr. Scottsdale,
AZ 85254

 

To the Holder:

 

Rocky Mountain High Brands, Inc.

Attn:
David M. Seeberger

9101 LBJ Freeway, Suite 200

Dallas, TX 75243

 

 

Notices
may be transmitted by facsimile, certified mail, private delivery, or any other commercially reasonable means, and shall be deemed
given upon receipt by the Party to whom they are addressed.

 

17.                              
Waiver of
Certain Formalities. All
parties to this Note hereby
waive presentment, dishonor, notice
of dishonor and protest. All parties
hereto consent to, and Holder is hereby
expressly authorized to make, without notice, any and all renewals, extensions, modifications
or waivers of the time for or the
terms of payment of any sum
or sums due hereunder, or under
any documents or instruments relating
to or securing this Note,
or of the performance of any covenants,
conditions or agreements hereof or thereof
or the taking or release of collateral
securing this Note.
Any such action taken by Holder shall
not discharge the liability of
any party to this Note.

 

18.                              
Grant of
Exclusive Option To
Purchase All Assets.
As additional consideration to Holder,
Maker hereby grants to the Holder the irrevocable option to purchase all of
the assets of the Maker for a period of three (3) months from the date of this Note (the “Option Period”), including,
but not limited to, the following:

 

		a.	All Inventory (including
all finished goods, packaging, work in process,
and all raw materials)

		b.	All Accounts
Receivable

		c.	All rights to
the “FitWhey” Trademark; and

		d.	All Recipes and
Formulas related to the “FitWhey”
branded products

		e.	Customer Lists

		f.	All Goodwill
and all other Intangible Assets
of Maker

 

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Additional terms of the asset purchase will
include:

 

		a.	A suitable non-compete agreement to be executed
by Maker and its members and executives;

		b.	Holder will not assume any liabilities of Maker; and

		c.	Holder shall, at the time of the asset purchase,
enter into a mutually acceptable employment agreement, consulting, or similar service agreement with Erik Rothchild.

 

If Holder
choses to exercise this option during the Option Period, it shall do so by giving written notice thereof to the Maker in writing.
The asset purchase may be documented by a comprehensive Asset Purchase Agreement to be prepared and executed by the Holder and
the Maker. Upon notice of exercise of this option by the Holder, Holder and Maker
shall execute such documents or other papers and take such further actions as may be reasonably required or desirable to carry
out the asset purchase contemplated by this option. The total purchase price for the assets to be acquired shall be $230,000 (the
“Purchase Price”), to be paid as follows:

 

		a.	$75,000 in cash, to be paid to Maker in installments
following the effective date of the asset purchase, payable on the 15th day
the month following the end of each of the Holder’s fiscal quarters. Each installment payment shall be equal to five percent
(5%) of the net sales revenue generated by Maker’s business during the applicable fiscal quarter.
Net sales are defined as total sales less allowances, returns, discounts, and slotting fees; and

 

		b.	$75,000 worth of validly issued, fully paid,
non-assessable shares of the Holder’s common stock to be issued on the effective date of the asset purchase. The shares shall
be valued using the closing share price for the Holder’s common stock on the effective date of the asset sale.

 

		c.	Forgiveness of the $80,000 Secured Promissory Note dated June 29, 2018 between
RMHB and BFIT.

 

19.                               No Shop. Through the expiration of the Option
Period, Maker shall not, directly or indirectly, through any director, officer, employee,
agent, representative or otherwise
(and each of said parties
shall use reasonable efforts to insure
such persons shall not directly
or indirectly) (i) solicit, initiate or encourage the submission of inquiries, proposals or offers from any person relating to (a) any business
combination with respect to the Maker, including without limitation the issuance of
any securities of the Maker; or (b) the sale of any
of the assets and/or capital stock
of the Maker (in either case, an "Alternative Transaction"), (ii) enter into or participate in any negotiations, or initiate any discussions or continue any discussions initiated by others,
regarding any Alternative Transaction, or furnish
to any other person any information with
respect to the assets or business
of the Maker or its business
for the purposes of pursuing a
possible Alternative Transaction with any
other party, or (iii)
otherwise participate in, assist, facilitate
or encourage any effort or attempt
by any other person to do any of the foregoing,
except as required by law as
fiduciaries. The Maker shall promptly
notify the Holder of any proposal or
inquiry made to it or any of its agents,
representatives, or otherwise with
respect to any of the foregoing.

 

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20.                              
Due Diligence. The
Maker (and its subsidiaries)
shall afford to the officers, attorneys,
accountants and other authorized representatives
of the Holder reasonable access, during
regular business hours and upon
reasonable notice, to the Maker's
books, records, personnel
and properties (including, without limitation,
the work papers prepared by its auditors)
so that the Holder may have
full opportunity to make such review,
examination and investigation as
it may desire of the Maker's business and
affairs. The Maker will
cause its employees, accountants and attorneys
to cooperate fully with
said review, examination and investigation
and to make full disclosure to
the Holder of all material facts
affecting the Maker's financial
conditions and business operations.

 

21.                              
Conduct of Business of the Maker and Maintenance of its Equity Structure. During
the Option Period, the Maker shall conduct its business only in the ordinary and usual course and make no material change thereto.
The Maker shall not issue any more membership interests or other ownership interests, nor will it grant any options or warrants
for membership interests in the Maker without the prior written consent of the Holder.

 

22.                              
Specific Performance.
The parties hereto agree that, if: (i) Maker has failed or refused to abide by the
covenants set forth in Sections 19, 20, or 21, above, or (ii) upon Holder’s exercise of the option granted in Section
18, the Maker has failed or refuse to consummate the asset purchase described above, then monetary damages would not be
an adequate remedy. It is expressly agreed that the Holder shall be entitled to equitable
relief, including injunctive relief and specific performance of the terms of Sections 18, 19, 20, and 21, above, this being in
addition to any other remedies to which it may be entitled at law or in equity.

 

 

Remainder of Page Intentionally Omitted; Signature
Page to Follow

 

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IN WITNESS WHEREOF, this
Note has been executed effective the date and place first written above.

 

“Maker”: BFIT BRANDS,
LLC

 

 

 By: /s/ Tim
McGeehan

			Tim McGeehan, Majority Shareholder

 

 

 

 By:
/s/ Erik Rothchild

			Erik Rothchild, Co-Founder

 

 

“Holder”: ROCKY
MOUNTAIN HIGH
BRANDS, INC.

 

 

 By: /s/Michael
Welch

			Michael Welch, CEO

 

    	 	10	 

    	 

    

Exhibit “A”
Collateral

Each
and all of the following in which BFIT Brands, LLC, an Arizona limited liability company, has any right, title, or interest, regardless
of the manner in which such items are formally held or titled; all as defined in the Texas Uniform Commercial Code - Secured Transactions
(§§ 9.101, et. seq.) as of the date of this Note, and as the same may be amended hereafter:

 

All inventory, as defined
in §9.102(48), including all finished goods held for sale, and all raw materials, packaging, and work in process, whether
now existing or hereafter coming into existence or acquired, together with any and all proceeds of such inventory within the meaning
of §9.102(65), including, but not limited to all:

 

		a.	Accounts, as defined in §9.102(2)

		b.	Cash proceeds, as defined in §9.102(9)

		c.	Chattel paper, as defined in §9.102(11)

		d.	Commercial tort claims, as defined in §9.102(13)

		e.	Deposit accounts, as defined in §9.102(29)

		f.	Documents, as defined in §9.102(30)

		g.	Electronic chattel paper, as defined in §9.102(31)

		h.	General intangibles, as defined in §9.102(42)

		i.	Instruments, as defined in §9.102(47)

		j.	Investment property, as defined in §9.102(49)

		k.	Noncash proceeds, as defined in §9.102(58)

		l.	Payment intangibles, as defined in §9.102(62)

		m.	Promissory notes, as defined in §9.102(66)

		n.	Supporting obligations, as defined in §9.102(78); and

		o.	Tangible chattel
paper, as defined in §9.102(79).

 

    	 	11Exhibit

Exhibit 10.1

            

4,000,000 Shares

MAMMOTH ENERGY SERVICES, INC.

Common Stock

UNDERWRITING AGREEMENT

June 26, 2018

CREDIT SUISSE SECURITIES (USA) LLC,
As Representative of the Several Underwriters,
           Eleven Madison Avenue,
           New York, N.Y. 10010-3629

Dear Sirs:

1.  Introductory.  The stockholders listed in Schedule B hereto (collectively, the “Selling Stockholders”) agree severally and not jointly with the several Underwriters named in Schedule A to sell to the several Underwriters an aggregate of 4,000,000 outstanding shares of the common stock, par value $0.01 per share (the “Securities”), of Mammoth Energy Services, Inc., a Delaware corporation (“Company”) (such 4,000,000 aggregate shares of the Securities being hereinafter referred to as the “Firm Securities”).  The Selling Stockholders also agree severally and not jointly with the Underwriters to sell to the Underwriters, at the option of the Underwriters, an aggregate of not more than 600,000 additional shares of the Securities (such 600,000 aggregate shares of the Securities being hereinafter referred to as the “Optional Securities”), as set forth in Section 3 of this Agreement. The Firm Securities and the Optional Securities are herein collectively called the “Offered Securities.” 

2.  Representations and Warranties of the Company and the Selling Stockholders.  

(a) The Company represents and warrants to, and agrees with, the several Underwriters that:

(i)  Filing and Effectiveness of Registration Statement; Certain Defined Terms.  The Company has filed with the Commission a registration statement on Form S-3 (No. 333-221268), which has become effective, covering the registration of the Offered Securities under the Act, including a related base prospectus or prospectuses.  “Registration Statement” at any particular time means such registration statement in the form then filed with the Commission, including any amendment thereto, any document incorporated by reference therein and all 430B Information and all 430C Information with respect to such registration statement, that in any case has not been superseded or modified.  “Registration Statement” without reference to a time means the Registration Statement as of the Effective Time.  For purposes of this definition, 430B Information shall be considered to be included in the Registration Statement as of the time specified in Rule 430B.
For purposes of this Agreement:
“430B Information”, means information included in a prospectus then deemed to be a part of the Registration Statement pursuant to Rule 430B(e) or retroactively deemed to be a part of the Registration Statement pursuant to Rule 430B(f).
“430C Information”, with respect to any registration statement, means information included in a prospectus then deemed to be a part of such registration statement pursuant to Rule 430C.
“Act” means the Securities Act of 1933, as amended.
“Applicable Time” means 6:20 pm (Eastern time) on the date of this Agreement.

“Closing Date” has the meaning defined in Section 3 hereof.
“Commission” means the Securities and Exchange Commission.
“Effective Time” with respect to the Registration Statement relating to the Offered Securities means the time of the first contract of sale for the Offered Securities.
“Exchange Act” means the Securities Exchange Act of 1934, as amended.
“Final Prospectus” means the Statutory Prospectus that discloses the public offering price, other 430B Information and other final terms of the Offered Securities and otherwise satisfies Section 10(a) of the Act.
“General Use Issuer Free Writing Prospectus” means any Issuer Free Writing Prospectus that is intended for general distribution to prospective investors, as evidenced by its being so specified in Schedule C to this Agreement
“Issuer Free Writing Prospectus” means any “issuer free writing prospectus,” as defined in Rule 433, relating to the Offered Securities in the form filed or required to be filed with the Commission or, if not required to be filed, in the form retained in the Company’s records pursuant to Rule 433(g).
“Limited Use Issuer Free Writing Prospectus” means any Issuer Free Writing Prospectus that is not a General Use Issuer Free Writing Prospectus.
 “Representative” means Credit Suisse Securities (USA) LLC.
“Rules and Regulations” means the rules and regulations of the Commission.
“Securities Laws” means, collectively, the Sarbanes-Oxley Act of 2002 (“Sarbanes-Oxley”), the Act, the Exchange Act, the Rules and Regulations, the auditing principles, rules, standards and practices applicable to auditors of “issuers” (as defined in Sarbanes-Oxley) promulgated or approved by the Public Company Accounting Oversight Board and, as applicable, the rules of the NASDAQ Global Market (“Exchange Rules”).
“Statutory Prospectus” with reference to any particular time means the prospectus relating to the Offered Securities that is included in the Registration Statement immediately prior to that time, including all 430B Information and all 430C Information with respect to the Registration Statement.  For purposes of the foregoing definition, 430B Information shall be considered to be included in the Statutory Prospectus only as of the actual time that form of prospectus (including a prospectus supplement) is filed with the Commission pursuant to Rule 424(b) and not retroactively.  
Unless otherwise specified, a reference to a “rule” is to the indicated rule under the Act.
(ii)  Compliance with the Requirements of the Act.  (i) (A) At the time the Registration Statement initially became effective, (B) at the time of each amendment thereto for the purposes of complying with Section 10(a)(3) of the Act (whether by post‐effective amendment, incorporated report or form of prospectus), (C) at the Effective Time relating to the Offered Securities and (D) on the Closing Date, the Registration Statement conformed and will conform in all material respects to the requirements of the Act and the Rules and Regulations and did not and will not include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading and (ii) on its date, at the time of filing of the Final Prospectus pursuant to Rule 424(b), and on each Closing Date, the Final Prospectus will conform in all material respects to the requirements of the Act and the Rules and Regulations and will not include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading. The preceding sentence does not apply to statements in or omissions from any such document based upon written information furnished to the Company by any Underwriter through the Representative specifically for use therein, it being understood and agreed that the only such information is that described as such in Section 8(b) hereof.
(iii)  Filing Fees.  The Company has paid or shall pay the required Commission filing fees relating to the Offered Securities within the time required by Rule 456 and otherwise in accordance with Rules 456 and 457.
(iv)  Ineligible Issuer Status.  (i) At the time of the initial filing of the Registration Statement and (ii) at the date of this Agreement, the Company was not and is not an “ineligible issuer,” as defined in Rule 405.

2

 (v)  General Disclosure Package.  As of the Applicable Time, neither (i) the General Use Issuer Free Writing Prospectus(es) issued at or prior to the Applicable Time, the preliminary prospectus supplement, dated June 26, 2018, including the base prospectus, dated June 19, 2018 (which is the most recent Statutory Prospectus distributed to investors generally) and the other information, if any, stated in Schedule C to this Agreement to be included in the General Disclosure Package, all considered together (collectively, the “General Disclosure Package”), nor (ii) any individual Limited Use Issuer Free Writing Prospectus, when considered together with the General Disclosure Package, included any untrue statement of a material fact or omitted to state any material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading.  The preceding sentence does not apply to statements in or omissions from any Statutory Prospectus or any Issuer Free Writing Prospectus in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representative specifically for use therein, it being understood and agreed that the only such information furnished by any Underwriter consists of the information described as such in Section 8(b) hereof.
(vi)  Issuer Free Writing Prospectuses.  Each Issuer Free Writing Prospectus, as of its issue date and at all subsequent times through the completion of the public offer and sale of the Offered Securities or until any earlier date that the Company notified or notifies the Representative as described in the next sentence, did not, does not and will not include any information that conflicted, conflicts or will conflict with the information then contained in the Registration Statement.  If at any time following issuance of an Issuer Free Writing Prospectus, at a time when a prospectus relating to the Offered Securities is (or but for the exemption in Rule 172 would be) required to be delivered under the Act by any Underwriter or dealer, there occurred or occurs an event or development as a result of which such Issuer Free Writing Prospectus conflicted or would conflict with the information then contained in the Registration Statement or as a result of which such Issuer Free Writing Prospectus, if republished immediately following such event or development, would include an untrue statement of a material fact or omitted or would omit to state a material fact necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, (i) the Company has promptly notified or will promptly notify the Representative and (ii) the Company has promptly amended or will promptly amend or supplement such Issuer Free Writing Prospectus to eliminate or correct such conflict, untrue statement or omission.
(vii)  Good Standing of the Company.  The Company has been duly incorporated and is existing and in good standing under the laws of the State of Delaware, with power and authority (corporate and other) to own and/or lease its properties and conduct its business as described in the General Disclosure Package; and the Company is duly qualified to do business as a foreign corporation in good standing in all other jurisdictions in which its ownership or lease of property or the conduct of its business requires such qualification, except where the failure to so qualify or to be in good standing as a foreign corporation in such other jurisdictions would not, individually or in the aggregate, result in a material adverse effect on the condition (financial or otherwise), results of operations, business, properties or prospects of the Company and its subsidiaries taken as a whole (“Material Adverse Effect”).

(viii)  Subsidiaries.  The Company’s “significant” subsidiaries, as defined in Rule 1-02 of Regulation S-X, immediately prior to the closing of the offering contemplated by this Agreement, will be the entities listed on Schedule D hereto. Each such subsidiary has been duly incorporated or formed and is existing and in good standing under the laws of the jurisdiction of its incorporation or formation, with corporate, limited liability company and/or other similar power and authority to own and/or lease its properties and conduct its business as described in the General Disclosure Package; and each such subsidiary is duly qualified to do business as a foreign corporation, limited liability company or other entity in good standing in all other jurisdictions in which its ownership or lease of property or the conduct of its business requires such qualification, except where the failure to so qualify or be in good standing as a foreign corporation, limited liability company or other entity in such other jurisdictions would not result in a Material Adverse Effect; all of the issued and outstanding capital stock, limited liability company interests or other ownership interests in each such subsidiary of the Company have been duly authorized and validly issued and, in the case of any corporation, are fully paid and non-assessable, and in the case of a limited liability company, the Company has no obligation to make further payments for its limited liability company interests or contributions to such subsidiary solely by reason of its ownership of such limited liability company interests or its status as a member of such subsidiary, and the Company will have no personal liability for the obligations of such subsidiary solely by reason of 

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being a member of such subsidiary; and the equity interests in each such subsidiary will be owned, on or prior to the First Closing Date, by the Company, directly or through subsidiaries, free from liens, encumbrances and defects, except such that arise or may arise under the Company’s revolving credit facility as described in the Registration Statement, the General Disclosure Package and the Final Prospectus. 

(ix)  Offered Securities.  The Offered Securities and all other outstanding shares of capital stock of the Company have been duly authorized; the authorized equity capitalization of the Company is as set forth in the General Disclosure Package; all outstanding shares of capital stock of the Company are validly issued, fully paid and nonassessable, and will conform to the information in the General Disclosure Package and to the description of such Offered Securities contained in the Final Prospectus; the stockholders of the Company have no preemptive rights with respect to the Securities; and none of the outstanding shares of capital stock of the Company have been issued in violation of any preemptive or similar rights of any security holder.  Except as disclosed in the Registration Statement and the General Disclosure Package, there are no outstanding (A) securities or obligations of the Company convertible into or exchangeable for any capital stock of the Company, (B) warrants, rights or options to subscribe for or purchase from the Company any such capital stock or any such convertible or exchangeable securities or obligations or (C) obligations of the Company to issue or sell any shares of capital stock, any such convertible or exchangeable securities or obligations or any such warrants, rights or options. The Company has not, directly or indirectly, offered or sold any of the Offered Securities by means of any “prospectus” (within the meaning of the Act and the Rules and Regulations) or used any “prospectus” or made any offer (within the meaning of the Act and the Rules and Regulations) in connection with the offer or sale of the Offered Securities, in each case other than the preliminary prospectus referred to in Section 2(a)(v) hereof.

(x)  Other Offerings. The Company has not sold, issued or distributed any common shares during the six-month period preceding the date hereof, including any sales pursuant to Rule 144A under, or Regulation D or S of, the Act.

(xi)  No Finder’s Fee.  Except as disclosed in the General Disclosure Package, there are no contracts, agreements or understandings between the Company and any person that would give rise to a valid claim against the Company or any Underwriter for a brokerage commission, finder’s fee or other like payment in connection with this offering.

(xii)  Registration Rights.  Except as disclosed in the General Disclosure Package, there are no contracts, agreements or understandings between the Company and any person granting such person the right to require the Company to file a registration statement under the Act with respect to any securities of the Company owned or to be owned by such person or to require the Company to include such securities in the securities registered pursuant to a Registration Statement or in any securities being registered pursuant to any other registration statement filed by the Company under the Act (collectively, “registration rights”), and any person to whom the Company has granted registration rights has agreed not to exercise such rights until after the expiration of the Lock-Up Period referred to in Section 5(k) hereof.

(xiii)  Listing.  The Offered Securities are listed on The NASDAQ Global Market.

(xiv)  Absence of Further Requirements.  No consent, approval, authorization, or order of, or filing or registration with, any person (including any governmental agency or body or any court) is required to be obtained or made by the Company for the consummation of the transactions contemplated by this Agreement in connection with the sale of the Offered Securities, except such as have been obtained, or made and such as may be required under state securities laws or by the Financial Industry Regulatory Authority, Inc. (“FINRA”).  

(xv)  Title to Property.  Except as disclosed in the General Disclosure Package, the Company and its subsidiaries have good and marketable title to all real properties and all other properties and assets owned by them, in each case free and clear of all liens, charges, encumbrances and defects except such that (x) arise or may arise under the Company’s revolving facility as described in the Registration Statement, the General Disclosure Package and the Final Prospectus or (y) do not materially affect the value thereof and do not interfere in any material respect with the use made or proposed to be made thereof by them and, except as disclosed in the General Disclosure Package, the Company and its subsidiaries hold any leased 

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real or personal property under valid and enforceable leases, with such exceptions as are not material and do not interfere in any material respect with the use made or proposed to be made thereof by them.
(xvi)  Absence of Defaults and Conflicts Resulting from Transaction.  The execution, delivery and performance of this Agreement, and the sale of the Offered Securities will not result in a breach or violation of any of the terms and provisions of, or constitute a default or a Debt Repayment Triggering Event (as defined below) under, or result in the imposition of any lien, charge or encumbrance upon any property or assets of the Company or any of its subsidiaries pursuant to, (i) the charter or by-laws or similar organizational documents of the Company or any of its subsidiaries, (ii) any statute, rule, regulation or order of any governmental agency or body or any court, domestic or foreign, having jurisdiction over the Company or any of its subsidiaries or any of their properties, or (iii) any agreement or instrument to which the Company or any of its subsidiaries is a party or by which the Company or any of its subsidiaries is bound or to which any of the properties of the Company or any of its subsidiaries is subject, except in the case of clauses (ii) and (iii), for any breaches, violations, defaults, liens, charges or encumbrances, which, individually or in the aggregate, would not result in a Material Adverse Effect; a “Debt Repayment Triggering Event” means any event or condition that gives, or with the giving of notice or lapse of time would give, the holder of any note, debenture, or other evidence of indebtedness (or any person acting on such holder’s behalf) the right to require the repurchase, redemption or repayment of all or a portion of such indebtedness by the Company or any of its subsidiaries.
(xvii)  Absence of Existing Defaults and Conflicts.  Neither the Company nor any of its subsidiaries is in violation of its respective charter, by-laws or similar organizational documents or in default (or with the giving of notice or lapse of time would be in default) under any existing obligation, agreement, covenant or condition contained in any indenture, loan agreement, mortgage, lease or other agreement or instrument to which any of them is a party or by which any of them is bound or to which any of the properties of any of them is subject, except such defaults that would not, individually or in the aggregate, result in a Material Adverse Effect.

(xviii)  Authorization of Agreement.  This Agreement has been duly authorized, executed and delivered by the Company.        

(xix)  Possession of Licenses and Permits.  The Company and its subsidiaries possess all adequate certificates, authorizations, franchises, licenses and permits issued by appropriate federal, state, local or foreign regulatory bodies (collectively, “Licenses”) necessary or material to the conduct of the business now conducted or proposed in the General Disclosure Package to be conducted by them, except where the failure to have obtained the same would not result in a Material Adverse Effect.  The Company and each of its subsidiaries are in compliance with the terms and conditions of all such Licenses, except where the failure to so comply would not, individually or in the aggregate, result in a Material Adverse Effect, and have not received any notice of proceedings relating to the revocation or modification of any Licenses that, if determined adversely to the Company or any of its subsidiaries, would, individually or in the aggregate, result in a Material Adverse Effect.

(xx)  Absence of Labor Dispute.  No labor dispute with the employees of the Company or any of its subsidiaries exists or, to the knowledge of the Company, is imminent that would result in a Material Adverse Effect.

(xxi)  Possession of Intellectual Property.  The Company and its subsidiaries own, possess or can acquire on reasonable terms, adequate trademarks, trade names and other rights to inventions, know-how, patents, copyrights, confidential information and other intellectual property (collectively, “intellectual property rights”) necessary to conduct the business now operated by them, or presently employed by them, and have not received any notice of infringement of or conflict with asserted rights of others with respect to any intellectual property rights that, if determined adversely to the Company or any of its subsidiaries, would, individually or in the aggregate, result in a Material Adverse Effect.

(xxii)  Environmental Laws.  Except as disclosed in the General Disclosure Package, (a)(i) neither the Company nor any of its subsidiaries is in violation of, and does not have any liability under, any federal, state, local or non-U.S. statute, law, rule, regulation, ordinance, code, other requirement or rule of law (including common law), or decision or order of any domestic or foreign governmental agency, governmental body or 

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court, relating to pollution, to the use, handling, transportation, treatment, storage, discharge, disposal or release of Hazardous Substances (as defined below), to the protection or restoration of the environment or natural resources, to health and safety including as such relates to exposure to Hazardous Substances, and to natural resource damages (collectively, “Environmental Laws”) that would, individually or in the aggregate, have a Material Adverse Effect, (ii) to the knowledge of the Company, neither the Company nor any of its subsidiaries own, occupy, operate or use any real property contaminated with Hazardous Substances, (iii) neither the Company nor any of its subsidiaries is conducting or funding any investigation, remediation, remedial action or monitoring of actual or suspected Hazardous Substances in the environment, (iv) to the knowledge of the Company, neither the Company nor any of its subsidiaries is liable or allegedly liable for any release or threatened release of Hazardous Substances, including at any off-site treatment, storage or disposal site, (v) neither the Company nor any of its subsidiaries is subject to any pending, or to the Company’s knowledge threatened, claim by any governmental agency or governmental body or person arising under Environmental Laws or relating to Hazardous Substances, and (vi) the Company and its subsidiaries have received and are in compliance with all, and have no liability under any, permits, licenses, authorizations, identification numbers or other approvals required under applicable Environmental Laws to conduct their business, except in each case covered by clauses (i) – (vi) such as would not, individually or in the aggregate, result in a Material Adverse Effect; (b) to the knowledge of the Company and its subsidiaries there are no facts or circumstances that would reasonably be expected to result in a violation of, liability under, or claim pursuant to any Environmental Law that would result in a Material Adverse Effect; and (c) in the ordinary course of its business, the Company and its subsidiaries periodically evaluate the effect, including associated costs and liabilities, of Environmental Laws on the business, properties, results of operations and financial condition of the Company, and, on the basis of such evaluation, the Company and its subsidiaries have reasonably concluded that such Environmental Laws will not, individually or in the aggregate, result in a Material Adverse Effect.  For purposes of this subsection “Hazardous Substances” means (A) petroleum and petroleum products, by-products or breakdown products, radioactive materials, asbestos-containing materials, polychlorinated biphenyls and mold, and (B) any other chemical, material or substance defined or regulated as toxic or hazardous or as a pollutant, contaminant or waste under Environmental Laws. 

(xxiii)  Accurate Disclosure; Exhibits.  The statements in the General Disclosure Package and the Final Prospectus under the headings, “Business—Our Services,”  “Business—Regulation,”  “Legal Proceedings,” “Description of our Common Stock,” “Certain Relationships and Related Party Transactions and Director Independence” and “Material U.S. Federal Income and Estate Tax Considerations for Non-U.S. Holders,” insofar as such statements summarize legal matters, agreements, documents or legal or regulatory proceedings discussed therein, are accurate and fair summaries, in all material respects, of such legal matters, agreements, documents or legal or regulatory proceedings and present the information required to be shown.  There are no contracts or documents which are required to be described in the Registration Statement or the General Disclosure Package pursuant to Form S-3 or to be filed as exhibits to the Registration Statement pursuant to Item 601 of Regulation S-K which have not been so described or filed as required, except for such exhibits as would not have a Material Adverse Effect.

(xxiv) Absence of Manipulation.  The Company has not taken, directly or indirectly, any action that is designed to or that has constituted or that would reasonably be expected to cause or result in the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Offered Securities.

(xxv)  Statistical and Market-Related Data.  Any third-party statistical and market-related data included or incorporated by reference in a Registration Statement, a Statutory Prospectus or the General Disclosure Package are based on or derived from sources that the Company believes to be reliable and accurate.

(xxvi)  Internal Controls and Compliance with the Sarbanes-Oxley Act.  Except as set forth in the General Disclosure Package, the Company, its subsidiaries and the Company’s Board of Directors (the “Board”) are in compliance with all applicable provisions of Sarbanes-Oxley and Exchange Rules.  The Company maintains a system of internal controls, including, but not limited to, disclosure controls and procedures, internal controls over accounting matters and financial reporting, an internal audit function and legal and regulatory compliance controls (collectively, “Internal Controls”) that comply with the applicable Securities Laws and are sufficient to provide reasonable assurances that (i) transactions are executed in accordance with management’s general 

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or specific authorizations, (ii) transactions are recorded as necessary to permit preparation of financial statements in conformity with U.S. Generally Accepted Accounting Principles (“GAAP”) and to maintain accountability for assets, (iii) access to assets is permitted only in accordance with management’s general or specific authorization, and (iv) the recorded accounting for assets is compared with the existing assets at reasonable intervals and appropriate action is taken with respect to any differences.  The Internal Controls are, or upon consummation of the offering of the Offered Securities will be, overseen by the Audit Committee (the “Audit Committee”) of the Board in accordance with Exchange Rules.  The Company has not publicly disclosed or reported to the Audit Committee or the Board, and within the next 90 days the Company does not reasonably expect to publicly disclose or report to the Audit Committee or the Board, a significant deficiency, material weakness, change in Internal Controls or fraud involving management or other employees who have a significant role in Internal Controls, any violation of, or failure to comply with, the Securities Laws, or any matter which, if determined adversely, would result in a Material Adverse Effect. 

		
	   
	(xxvii)  Litigation.  Except as disclosed in the General Disclosure Package, there are no pending actions, suits or proceedings (including any inquiries or investigations by any court or governmental agency or body, domestic or foreign) against or affecting the Company, any of its subsidiaries or any of their respective properties that, if determined adversely to the Company or any of its subsidiaries, would, individually or in the aggregate, result in a Material Adverse Effect, or would materially and adversely affect the ability of the Company to perform its obligations under this Agreement, or which are otherwise material in the context of the sale of the Offered Securities; and no such actions, suits or proceedings (including any inquiries or investigations by any court or governmental agency or body, domestic or foreign) are to the Company’s knowledge, threatened or contemplated.

(xxiii)  Financial Statements.      The historical financial statements included or incorporated by reference in the Registration Statement and the General Disclosure Package present fairly the financial position of the Company and its consolidated subsidiaries as of the dates shown and their results of operations and cash flows of the Company and its subsidiaries for the periods shown, and such financial statements have been prepared in conformity with GAAP, applied on a consistent basis; and the pro forma financial statements included or incorporated by reference in the General Disclosure Package have been prepared in accordance with the applicable accounting requirements of Regulation S-X under the Act, the assumptions used in preparing the pro forma financial statements included or incorporated by reference in the Registration Statement and the General Disclosure Package provide a reasonable basis for presenting the significant effects directly attributable to the transactions or events described therein, the related pro forma adjustments give appropriate effect to those assumptions, and the pro forma columns therein reflect the proper application of those adjustments to the corresponding historical financial statement amounts.  Grant Thornton LLP has certified the audited financial statements of the Company included or incorporated by reference in the Registration Statement, General Disclosure Package and the Final Prospectus, and is an independent registered public accounting firm with respect to each of the Company, Mammoth Energy Partners LP, Stingray Pressure Pumping LLC and Lantern Drilling Company within the Rules and Regulations and as required by the Act and the applicable rules and guidance from the Public Company Accounting Oversight Board (United States). PricewaterhouseCoopers LLP has certified the audited financial statements of Sturgeon Acquisition LLC included or incorporated by reference in the Registration Statement, General Disclosure Package and the Final Prospectus and is an independent registered public accounting firm with respect to each of the Company and Sturgeon Acquisition LLC within the Rules and Regulations and as required by the Act and the applicable rules and guidance from the Public Company Accounting Oversight Board (United States). The other financial and statistical data included or incorporated by reference in the Registration Statement, the General Disclosure Package and the Final Prospectus present fairly, in all material respects, the information shown therein and such data has been compiled on a basis consistent with the financial statements presented therein and the books and records of the Company.  The Company does not have any material liabilities or obligations, direct or contingent (including any off-balance sheet obligations or any “variable interest entities” within the meaning of Financial Accounting Standards Board Interpretation No. 46), not disclosed in the Registration Statement, the General Disclosure Package and the Final Prospectus.  There are no financial statements that are required to be included or incorporated by reference in the Registration Statement, the General Disclosure Package or the Final Prospectus that are not so included or incorporated by reference as required.

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(xxix)  No Material Adverse Change in Business.  Except as disclosed in the General Disclosure Package, since the end of the period covered by the latest audited financial statements included or incorporated by reference in the General Disclosure Package (i) there has been no change, nor any development or event involving a prospective change, in the condition (financial or otherwise), results of operations, business, properties or prospects of the Company and its subsidiaries, taken as a whole, that is material and adverse, (ii) there has been no dividend or distribution of any kind declared, paid or made by the Company on any class of its capital stock, (iii) there has been no material adverse change in the capital stock, short-term indebtedness, long-term indebtedness, net current assets or net assets of the Company or any of its subsidiaries, (iv) there has been no material transaction entered into and there is no material transaction that is probable of being entered into by the Company or any of its subsidiaries other than transactions in the ordinary course of business and (v) there has been no obligation, direct or contingent, that is material to the Company or any of its subsidiaries taken as a whole, incurred by the Company or any of its subsidiaries, except obligations incurred in the ordinary course of business.

(xxx)  Investment Company Act.  The Company is not and, after giving effect to the offering and sale of the Offered Securities and the application of the proceeds thereof as described in the General Disclosure Package, will not be an “investment company” as defined in the Investment Company Act of 1940 (the “Investment Company Act”).

(xxxi)  Ratings.  No “nationally recognized statistical rating organization” as such term is defined for purposes of Section 3(a)(62) of the Exchange Act has imposed (or has informed the Company that it is considering imposing) any condition (financial or otherwise) on the Company’s retaining any rating assigned to the Company or any securities of the Company or (ii) has indicated to the Company that it is considering any of the actions described in Section 7(e)(ii) hereof.

(xxxii)  Insurance.  The Company and its subsidiaries are insured by insurers of recognized financial responsibility against such losses and risks and in such amounts as the Company reasonably believes are adequate for the conduct of their business.  All such policies of insurance insuring the Company and its subsidiaries are in full force and effect.  The Company and its subsidiaries are in compliance with the terms of such policies and instruments in all material respects; and there are no material claims by the Company or its subsidiaries under any such policy or instrument as to which any insurance company is denying liability or defending under a reservation of rights clause.  Neither the Company nor any of its subsidiaries has any reason to believe that any of them will not be able to renew its existing insurance coverage as and when such coverage expires or to obtain similar coverage from similar insurers as may be necessary to continue its business at a cost that would not have a Material Adverse Effect, except as disclosed in the Registration Statement and the General Disclosure Package.  
(xxxiii)  Tax Returns.  The Company and its subsidiaries have filed all federal, state, local and non-U.S. tax returns that are required to be filed or have requested extensions thereof (except in any case in which the failure so to file would not result in a Material Adverse Effect); and the Company and its subsidiaries have paid all taxes (including any assessments, fines or penalties) required to be paid by them, except for any such taxes, assessments, fines or penalties currently being contested in good faith or as would not, individually or in the aggregate, result in a Material Adverse Effect.  
(xxxiv)  Certain Relationships and Related Transactions.  No relationship, direct or indirect, exists between or among the Company or its subsidiaries on the one hand, and the directors, officers, stockholders, customers or suppliers of the Company or its subsidiaries on the other hand, which is required to be described in the General Disclosure Package which is not so described therein.  The Final Prospectus will contain the same description of the matters set forth in the preceding sentence contained in the General Disclosure Package.
(xxxv)  ERISA.  The minimum funding standard under Section 302 of the Employee Retirement Income Security Act of 1974, as amended, and the regulations and published interpretations thereunder (“ERISA”), has been satisfied by each “employee benefit plan” (as defined in Section 3(3) of ERISA), whether or not subject to ERISA, with respect to which the Company or any of its subsidiaries could have any liability (each an “Employee Benefit Plan”), and the trust forming part of each such plan which is intended to be qualified under Section 401 of the Internal Revenue Code of 1986, as amended (the “Code”), is so qualified and nothing 

8

has occurred since the date of such qualification which could reasonably be expected to result in the loss of such qualification; each of the Company and its subsidiaries has fulfilled its obligations, if any, under Section 515 of ERISA; neither the Company nor any of its subsidiaries maintain or are required to contribute to a “welfare plan” (as defined in Section 3(1) of ERISA) which provides retiree or other post-employment welfare benefits or insurance coverage (other than “continuation coverage” (as defined in Section 602 of ERISA)); each Employee Benefit Plan is in and has been operated in compliance with all applicable laws, including but not limited to ERISA and the Code, except where the failure to comply would not reasonably be expected to result in a Material Adverse Effect; no event has occurred (including a “reportable event” as such term is defined in Section 4043 of ERISA) and no condition exists with respect to each Employee Benefit Plan that would subject the Company or any of its subsidiaries to any tax, fine, lien, penalty or liability imposed by ERISA or the Code; no non-exempt “prohibited transaction” as defined under Section 406 of ERISA or Section 4975 of the Code has occurred with respect to any Employee Benefit Plan; and neither the Company nor any of its subsidiaries have incurred or would reasonably be expected to incur any withdrawal liability under Section 4201 of ERISA, any liability under Section 4062, 4063 or 4064 of ERISA, or any other liability under Title IV of ERISA.
(xxxvi)  No Unlawful Payments.  None of the Company, any of its subsidiaries or any director or officer, or to the knowledge of the Company, any agent, employee or other person associated with or acting on behalf of the Company or any of its subsidiaries has (A) used any corporate funds for any unlawful contribution, gift, entertainment or other unlawful expense relating to political activity; (B) made or taken an act in furtherance of an offer, promise or authorization of any direct or indirect unlawful payment or benefit to any foreign or domestic government official or employee from corporate funds including of any government-owned or controlled entity or of a public international organization, or any person acting in an official capacity for or on behalf of any of the foregoing, or any political party or party official or candidate for political office; (C) violated or is in violation of any provision of the Foreign Corrupt Practices Act of 1977 or any applicable law or regulation implementing the OECD Convention on Combating Bribery of Foreign Public Officials in International Business Transactions, or committed an offence under the Bribery Act 2010 of the United Kingdom, or any other applicable anti-bribery or anti-corruption law; or (D) made, offered, agreed, requested or taken an act in furtherance of any unlawful bribe or other unlawful benefit, including, without limitation, any rebate, payoff, influence payment, kickback or other unlawful or improper payment or benefit. The Company has instituted, maintains and enforces, and will continue to maintain and enforce, policies and procedures designed to promote and ensure compliance with all applicable anti-bribery and anti-corruption laws.
 (xxxvii)  Compliance with Anti-Money Laundering Laws.  The operations of the Company and its subsidiaries are and have been conducted at all times in compliance with applicable financial recordkeeping and reporting requirements of the Currency and Foreign Transactions Reporting Act of 1970, as amended, the anti-money laundering statutes of all jurisdictions, the rules and regulations thereunder and any related or similar rules, regulations and guidelines issued, administered or enforced by any governmental agency (collectively, the “Anti-Money Laundering Laws”) and no action, suit or proceeding by or before any court or governmental agency, authority or body or any arbitrator involving the Company or its subsidiaries with respect to the Anti-Money Laundering Laws is pending or, to the knowledge of the Company or its subsidiaries, threatened.
(xxxiii)  Compliance with OFAC.  None of the Company, any of its subsidiaries or any director or officer, or to the knowledge of the Company, any agent, employee or affiliate of the Company or any of its subsidiaries is currently subject to sanctions administered or enforced by the U.S. government, (including, without limitation, the Office of Foreign Assets Control of the U.S. Department of the Treasury (“OFAC”) or the U.S. Department of State and including, without limitation, the designation as a “specially designated national” or “blocked person”), the United Nations Security Council (“UNSC”), the European Union, Her Majesty’s Treasury (“HMT”), or other relevant sanctions authority (collectively, “Sanctions”), nor are the Company or its subsidiaries located, organized or resident in a country or territory that is the subject or target of Sanctions, including, without limitation, Cuba, Iran, North Korea, Sudan, the Crimea region and Syria (each, a “Sanctioned Country”); and neither the Company nor any of its subsidiaries will, directly or indirectly, use the proceeds of the offering and sale of its Offered Securities under this Agreement, or lend, contribute or otherwise make available such proceeds to any subsidiary, joint venture partner or other person or entity for 

9

the purpose of (i) funding or facilitating any unauthorized activities of or business with any person that, at the time of such funding or facilitation, is the subject or target of Sanctions, (ii) funding or facilitating any unauthorized activities of or business in any Sanctioned Country or (iii) in any other manner violating by any person (including any person participating in the transaction, whether as underwriter, initial purchaser, advisor, investor or otherwise) of Sanctions. For the past five years, the Company and its subsidiaries have not knowingly engaged in, are not now knowingly engaged in any unauthorized dealings or transactions with any person that at the time of such dealing or transaction is or was the subject or the target of Sanctions or with any Sanctioned Country.
(xix)  Emerging Growth Company.  The Company is an emerging growth company as defined in Section 2(a)(19) of the Act.  Neither the Company nor any person authorized by the Company has engaged in any oral or written communication in connection with the offering of the Offered Securities in reliance on Section 5(d) of the Act.
 (b)  Each Selling Stockholder severally represents and warrants to, and agrees with, the several Underwriters that:

(i) Title to Securities.  Such Selling Stockholder is, and immediately prior to each Closing Date will be, the record and beneficial owner of the Offered Securities to be sold by such Selling Stockholder and, at each Closing Date, such Offered Securities will be free and clear of all liens, encumbrances, equities and claims and, if applicable, such Selling Stockholder has duly endorsed the Offered Securities to be sold by it in blank, and assuming that the Underwriters acquire their interests in the Offered Securities to be sold by such Selling Stockholder without notice of any adverse claim (within the meaning of Section 8-105 of the New York Uniform Commercial Code (the “UCC”), the Underwriters, by purchasing the Offered Securities to be delivered on the applicable Closing Date, by making payment therefor as provided herein, and having the Offered Securities to be sold by such Selling Stockholder credited to the securities account or accounts of the Underwriters maintained with The Depository Trust Company (the “DTC”) or such other securities intermediary, will have acquired a security entitlement (within the meaning of Section 8-102(a)(17) of the UCC) to the Offered Securities to be sold by such Selling Stockholder and purchased by the Underwriters, and no action based on an adverse claim (within the meaning of Section 8-105 of the UCC) may be asserted against the Underwriters with respect to the Offered Securities to be sold by such Selling Stockholder. Such Selling Stockholder has and, on each Closing Date will have, good and valid title to all of the Offered Securities to be delivered by such Selling Stockholder on such Closing Date.

(ii)  Absence of Further Requirements.  No consent, approval, authorization or order of, or filing with, any person (including any governmental agency or body or any court) is required to be obtained or made by such Selling Stockholder for the consummation of the transactions contemplated by this Agreement in connection with the offering and sale of the Offered Securities to be sold by such Selling Stockholder, except such as have been obtained and made under the Act and such as may be required under state securities laws.

(iii)  Absence of Defaults and Conflicts Resulting from Transaction.  The execution, delivery and performance of this Agreement and the consummation of the transactions herein contemplated will not result in a breach or violation of any of the terms and provisions of, or constitute a default under, or result in the imposition of any lien, charge or encumbrance upon any property or assets of any Selling Stockholder pursuant to (i) any statute, any rule, regulation or order of any governmental agency or body or any court having jurisdiction over such Selling Stockholder or any of its properties, (ii) any agreement or instrument to which such Selling Stockholder is a party or by which such Selling Stockholder is bound or to which any of the properties of such Selling Stockholder is subject, or (iii) the charter or by-laws of such Selling Stockholder that is a corporation or the certificate of formation or the limited liability company agreement of such Selling Stockholder that is a limited liability company, except in the case of clauses (i) and (ii), for any breaches, violations, defaults, liens, charges or encumbrances, which would not, individually or in the aggregate, result in an material adverse effect on the performance of such Selling Stockholder of this Agreement or adversely affect such Selling Stockholder's ability to perform its obligations hereunder or enforceability hereof. 

(iv) Compliance with the Requirements of the Act. (i) (A) At the time the Registration Statement initially became effective, (B) at the time of each amendment thereto for the purposes of complying with Section 10(a)

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(3) of the Act (whether by post‐effective amendment, incorporated report or form of prospectus), (C) at the Effective Time relating to the Offered Securities and (D) on the Closing Date, the Registration Statement conformed and will conform in all material respects to the requirements of the Act and the Rules and Regulations and did not and will not include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading and (ii) on its date, at the time of filing of the Final Prospectus pursuant to Rule 424(b) and on each Closing Date, the Final Prospectus will conform in all material respects to the requirements of the Act and the Rules and Regulations and will not include any untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein, in light of the circumstances under which they were made, not misleading. The preceding sentence applies only to such information furnished to the Company by such Selling Stockholder specifically for use in connection with the preparation of the Registration Statement, the General Disclosure Package and the Final Prospectus, such information with respect to such Selling Stockholder is identified under the heading “Selling Stockholders” (the “Selling Stockholder Information”).
    
(v) No Undisclosed Material Information.  The sale of the Offered Securities by such Selling Stockholder pursuant to this Agreement is not prompted by any material information concerning the Company or any of its subsidiaries that is not set forth the General Disclosure Package.
(vi) Authorization of Agreement.  This Agreement has been duly authorized, executed and delivered by such Selling Stockholder.
(vii) No Finder’s Fee.  Except as disclosed in the General Disclosure Package, there are no contracts, agreements or understandings between such Selling Stockholder and any person that would give rise to a valid claim against such Selling Stockholder or any Underwriter for a brokerage commission, finder’s fee or other like payment in connection with this offering.

(viii) Absence of Manipulation.  Such Selling Stockholder has not taken, directly or indirectly, any action that is designed to or that has constituted or that would reasonably be expected to cause or result in the stabilization or manipulation of the price of any security of the Company to facilitate the sale or resale of the Offered Securities.

(ix) No Distribution of Offering Material.  Such Selling Stockholder has not distributed and will not distribute any prospectus or other offering material in connection with the offering and sale of the Offered Securities.

        (x) Good Standing of the Selling Stockholders. Such Selling Stockholder is validly existing and in good standing under the laws of the jurisdiction of its organization.

(xi) Material Agreements.  There are no material agreements or arrangements relating to the Company or its subsidiaries to which such Selling Stockholder (or, to such Selling Stockholder’s knowledge, any direct or indirect stockholder or member, as the case may be, of such Selling Stockholder) is a party, which are required to be described in the Registration Statements or the Final Prospectus or to be filed as exhibits thereto that are not so described or filed.

Any certificate signed by any officer of a Selling Stockholder and delivered to the Underwriters or counsel for the Underwriters in connection with this Agreement shall be deemed a representation and warranty by such Selling Stockholder as to matters covered thereby, to the Underwriters.
Each of the Selling Stockholders acknowledges that for purposes of the opinions to be delivered to the Underwriter pursuant to Section 7 of this Agreement, counsel to the Company, counsel to the Selling Stockholders and counsel to the Underwriters will rely upon the accuracy and truth of the foregoing representations, and each of the Selling Stockholders hereby consents to such reliance.
3.  Purchase, Sale and Delivery of Offered Securities. On the basis of the representations, warranties and agreements and subject to the terms and conditions set forth herein, each Selling Stockholder agrees, severally and not jointly, to sell to each Underwriter, and each Underwriter agrees, severally and not jointly, to purchase from each Selling 

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Stockholder, at a purchase price of $38.01 per share, that number of Firm Securities set forth opposite the name of such Selling Stockholder in Schedule B hereto, by a fraction the numerator of which is the number of Firm Securities set forth opposite the name of such Underwriter in Schedule A hereto and the denominator of which is the total number of Firm Securities.

The Selling Stockholders will deliver the Firm Securities to or as instructed by the Representative for the accounts of the several Underwriters in a form reasonably acceptable to the Representative, against payment of the purchase price for such Firm Securities by the Underwriters in Federal (same day) funds by a wire transfer to an account at a bank specified, as applicable, by each Selling Stockholder (and acceptable to the Representative) drawn to the order of the Selling Stockholders, as applicable, at the office of Latham & Watkins LLP, 811 Main Street Suite 3700, Houston, Texas 77002, at 9:00 A.M., New York time, on June 29, 2018, or at such other time not later than seven full business days thereafter as shall be agreed upon by the Company and the Representative, such time being herein referred to as the “First Closing Date.” For purposes of Rule 15c6-1 under the Securities Exchange Act of 1934, the First Closing Date (if later than the otherwise applicable settlement date) shall be the settlement date for payment of funds and delivery of securities for all the Offered Securities sold pursuant to the offering contemplated by this Agreement.  Delivery of the Firm Securities will be made through the facilities of the Depositary Trust Company (the “DTC”) unless the Representative shall otherwise instruct and evidence of their issuance will be made available to the Representative.

In addition, upon written notice from the Representative given to the Selling Stockholders from time to time not more than 30 days subsequent to the date of the Final Prospectus, the Underwriters may purchase all or less than all of the Optional Securities at the purchase price per Security to be paid for the Firm Securities.  The Selling Stockholders agree, severally and not jointly, to sell to the Underwriters the respective numbers of Optional Securities obtained by multiplying the number of Optional Securities specified in such notice by a fraction the numerator of which is the number of shares set forth opposite the names of such Selling Stockholders in Schedule B hereto under the caption “Number of Optional Securities to be Sold” and the denominator of which is the total number of Optional Securities (subject to adjustment by the Representative to eliminate fractions). Such Optional Securities shall be purchased from each Selling Stockholder for the account of each Underwriter in the same proportion as the number of Firm Securities set forth opposite such Underwriter’s name bears to the total number of shares of Firm Securities (subject to adjustment by the Representative in its discretion to eliminate fractions). No Optional Securities shall be sold or delivered unless the Firm Securities previously have been, or simultaneously are, sold and delivered. The right to purchase the Optional Securities or any portion thereof may be exercised from time to time and to the extent not previously exercised may be surrendered and terminated at any time upon notice by the Representative to the Company and the Selling Stockholders.

Each time for the delivery of and payment for the Optional Securities, being herein referred to as an “Optional Closing Date”, which may be the First Closing Date (the First Closing Date and each Optional Closing Date, if any, being sometimes referred to as a “Closing Date”), shall be determined by the Representative but shall be not later than five full business days after written notice of election to purchase Optional Securities is given. Each Selling Stockholders will deliver the Optional Securities being purchased from such Selling Stockholder on each Optional Closing Date to or as instructed by the Representative for the accounts of the several Underwriters in a form reasonably acceptable to the Representative, against payment of the purchase price therefore in Federal (same day) funds by a wire transfer to an account at a bank specified by such Selling Stockholder (and acceptable to the Representative) drawn to the order of such Selling Stockholder, at the office of Latham & Watkins LLP.  The delivery of any Optional Securities will be made through the facilities of the DTC unless the Representative shall otherwise instruct and evidence of their issuance will be made available to the Representative.

4.  Offering by Underwriters.  It is understood that the several Underwriters propose to offer the Offered Securities for sale to the public as set forth in the Final Prospectus.

5.  Certain Agreements of the Company and the Selling Stockholders.  The Company agrees with the several Underwriters and the Selling Stockholders that: 

(a)  Additional Filings.  The Company has filed or will file each Statutory Prospectus (including the Final Prospectus) in a form approved by the Representative, with the Commission, pursuant to and in accordance with subparagraph (2) (or, if applicable and if consented to by the Representative, subparagraph (5)) of Rule 

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424(b) not later than the second business day following the earlier of the date it is first used or the execution and delivery of this Agreement.  The Company has complied and will comply with Rule 433.

(b)  Filing of Amendments: Response to Commission Requests.  The Company will promptly advise the Representative of any proposal to amend or supplement at any time the Registration Statement or any Statutory Prospectus and will not effect such amendment or supplementation without the Representative’s consent, which shall not be unreasonably withheld; and the Company will also advise the Representative promptly of (i) any amendment or supplementation of a Registration Statement or any Statutory Prospectus, (ii) any request by the Commission or its staff for any amendment to any Registration Statement, for any supplement to any Statutory Prospectus or for any additional information, (iii) the institution by the Commission of any stop order proceedings in respect of a Registration Statement or the threatening of any proceeding for that purpose, and (iv) the receipt by the Company of any notification with respect to the suspension of the qualification of the Offered Securities in any jurisdiction or the institution or threatening of any proceedings for such purpose.  The Company will use its reasonable best efforts to prevent the issuance of any such stop order or the suspension of any such qualification and, if issued, to obtain as soon as possible the withdrawal thereof.

(c)  Continued Compliance with Securities Laws.  If, at any time when a prospectus relating to the Offered Securities is (or but for the exemption in Rule 172 would be) required to be delivered under the Act by any Underwriter or dealer, any event occurs as a result of which the Final Prospectus as then amended or supplemented would include an untrue statement of a material fact or omit to state any material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, or if it is necessary at any time to amend the Registration Statement or supplement the Final Prospectus to comply with the Act, the Company will promptly notify the Representative of such event and will promptly prepare and file with the Commission and furnish, at its own expense, to the Underwriters and the dealers and any other dealers upon request of the Representative, an amendment or supplement which will correct such statement or omission or an amendment which will effect such compliance.  Neither the Representative’s consent to, nor the Underwriters’ delivery of, any such amendment or supplement shall constitute a waiver of any of the conditions set forth in Section 7 hereof.

(d)  Rule 158.  As soon as practicable, but not later than the Availability Date (as defined below), the Company will make generally available to its security holders an earnings statement covering a period of at least 12 months beginning after the date of this Agreement and which will satisfy the provisions of Section 11(a) of the Act and Rule 158 under the Act. For the purpose of the preceding sentence, “Availability Date” means the day after the end of the fourth fiscal quarter following the fiscal quarter that includes such Effective Time on which the Company is required to file its Form 10-Q for such fiscal quarter except that, if such fourth fiscal quarter is the last quarter of the Company’s fiscal year, “Availability Date” means the day after the end of such fourth fiscal quarter on which the Company is required to file its Form 10-K.

(e)  Furnishing of Prospectuses.  The Company will furnish to the Representative copies of the Registration Statement, including all exhibits, and upon the request of the Representative, signed copies of the Registration Statement, any Statutory Prospectus, and the Final Prospectus and all amendments and supplements to such documents, in each case in such quantities as the Representative reasonably requests. The Final Prospectus shall be so furnished on or prior to 5:00 P.M., New York time, on the business day following the execution and delivery of this Agreement unless otherwise agreed by the Company and the Representative.  All other such documents shall be so furnished as soon as available. The Company and the Selling Stockholders will pay the expenses of printing and distributing to the Underwriters all such documents.

(f)  Blue Sky Qualifications.  The Company shall cooperate with the Underwriters and counsel for the Underwriters to qualify or register the Offered Securities for resale under (or obtain exemptions from the application of) the state securities or blue sky laws of those jurisdictions designated by the Underwriters, shall comply with such laws and shall continue such qualifications, registrations and exemptions in effect so long as required for the distribution of the Offered Securities.  The Company shall not be required to qualify as a foreign corporation or to take any action that would subject it to general service of process or taxation in any such jurisdiction where it is not presently qualified or subject to taxation.

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(g)  Reporting Requirements.  During the period of five years hereafter, the Company will furnish to the Representative and, upon request, to each of the other Underwriters, as soon as practicable after the end of each fiscal year, a copy of its annual report to stockholders for such year; and the Company will furnish to the Representative (i) as soon as available, a copy of each report and any definitive proxy statement of the Company filed with the Commission under the Exchange Act or mailed to stockholders, and (ii) from time to time, such other information concerning the Company as the Representative may reasonably request.  However, so long as the Company is subject to the reporting requirements of either Section 13 or Section 15(d) of the Exchange Act and is timely filing reports with the Commission on its Electronic Data Gathering, Analysis and Retrieval system (“EDGAR”), it is not required to furnish such reports or statements to the Underwriters.

(h)  Payment of Expenses.  The Company and each Selling Stockholder agree with the several Underwriters that the Company will pay all expenses incident to the performance of the obligations of the Company and the Selling Stockholders under this Agreement, including but not limited to (i) any filing fees and reasonable attorney’s fees and expenses incurred by the Company or the Underwriters in connection with qualifying or registering (or obtaining exemptions from the qualification or registration of) all or any part of the Offered Securities for offer and sale under the state securities or blue sky laws of such jurisdictions as the Representative designates and the preparation and printing of memoranda relating thereto, (ii) the filing fees incident to, and the fees and expenses of counsel for the Underwriters up to $20,000 related to, the FINRA’s review and approval of the Underwriters’ participation in the offering and distribution of the Offered Securities, (iii) costs and expenses of the Company’s officers and employees and any other expenses of the Company relating to investor presentations or any “road show” in connection with the offering and sale of the Offered Securities including, without limitation, any travel expenses of the Company’s officers and employees, provided, however, that the Underwriters will pay for 50% of the costs and expenses of any chartered flight, except for flights on which there is no representative of the Representative, (iv) fees and expenses incident to listing the Offered Securities on the NASDAQ Global Market, (v) fees and expenses in connection with the registration of the Offered Securities under the Exchange Act, (vi) expenses incurred in distributing preliminary prospectuses and the Final Prospectus (including any amendments and supplements thereto) to the Underwriters and expenses incurred in preparing, printing and distributing any Issuer Free Writing Prospectuses to investors or prospective investors and (vii) all other fees, costs and expenses referred to in Item 13 of Part II of the Registration Statement.  Notwithstanding the foregoing, each Selling Stockholder agrees to pay any transfer taxes on the sale of the Offered Securities by such Selling Stockholder to the Underwriters. Except as provided in this Agreement, the Underwriters shall pay their own expenses, including the fees and disbursement of their counsel. 

(i) [Reserved]

(j) Absence of Manipulation.  The Company and the Selling Stockholders will not take, directly or indirectly, any action designed to or that would constitute or that could reasonably be expected to cause or result in, stabilization or manipulation of the price of any securities of the Company to facilitate the sale or resale of the Offered Securities.

(k) Further Agreements of the Selling Stockholders. Each of the Selling Stockholders agrees to furnish to the Representative, prior to the Closing Date, a lock up agreement, in the form of Exhibit B hereto, and to do and perform all things required or necessary to be done and performed under this Agreement by it prior to each Closing Date, and to satisfy all conditions precedent to the Underwriters’ obligations hereunder to purchase the Offered Securities from it. 

(l)  Restriction on Sale of Securities by the Company.  For the period specified below (the “Lock-Up Period”), the Company will not, directly or indirectly, take any of the following actions with respect to its Securities or any securities convertible into or exchangeable or exercisable for any of its Securities (“Lock-Up Securities”): (i) offer, sell, issue, contract to sell, pledge or otherwise dispose of Lock-Up Securities, (ii) offer, sell, issue, contract to sell, contract to purchase or grant any option, right or warrant to purchase Lock-Up Securities, (iii) enter into any swap, hedge or any other agreement that transfers, in whole or in part, the economic consequences of ownership of Lock-Up Securities, (iv) establish or increase a put equivalent position or liquidate or decrease a call equivalent position in Lock-Up Securities within the meaning of Section 16 of the Exchange Act or (v) file with the Commission a registration statement under the Act relating to Lock-

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Up Securities, or publicly disclose the intention to take any such action, without the prior written consent of Credit Suisse Securities (USA) LLC (“Credit Suisse”), except for issuances of Lock-Up Securities pursuant to the conversion or exchange of convertible or exchangeable securities or the exercise of warrants or options or vesting of restricted stock or restricted stock units, in each case outstanding on the date hereof and described in the General Disclosure Package, grants of employee or director stock options, restricted stock or restricted stock units pursuant to the terms of a plan in effect on the date hereof and described in the General Disclosure Package or issuances of Lock-Up Securities pursuant to the exercise of such options, provided that such options, stock, units or the Lock-Up Securities issued upon exercise thereof may not be transferred during the Lock-Up Period.  The initial Lock-Up Period will commence on the date hereof and continue for 45 days after the date hereof or such earlier date that Credit Suisse consents to in writing. 
(m)  Agreement to announce lock-up waiver.  If Credit Suisse, in its sole discretion, agrees to release or waive the restrictions set forth in a lock-up letter described in Section 7(k) hereof for an officer or director of the Company and provide the Company with notice of the impending release or waiver at least three business days before the effective date of such release or waiver, the Company agrees to announce the impending release or waiver by a press release substantially in the form of Exhibit A hereto through a major news service at least two business days before the effective date of the release or waiver.
(n)  Emerging Growth Company Status.  The Company will notify the Representative in writing on or prior to the date that the Company is no longer an “emerging growth company” as defined in Section 2(a)(19) of the Act.  

6.  Free Writing Prospectuses. The Company and Selling Stockholders represent and agree that, unless they obtain the prior consent of the Representative, and each Underwriter represents and agrees that, unless it obtains the prior consent of the Company and the Representative, it has not made and will not make any offer relating to the Offered Securities that would constitute an Issuer Free Writing Prospectus, or that would otherwise constitute a “free writing prospectus,” as defined in Rule 405, required to be filed with the Commission.  Any such free writing prospectus consented to by the Company and the Representative is hereinafter referred to as a “Permitted Free Writing Prospectus.”  The Company represents that it has treated and agrees that it will treat each Permitted Free Writing Prospectus as an “issuer free writing prospectus,” as defined in Rule 433, and has complied and will comply with the requirements of Rules 164 and 433 applicable to any Permitted Free Writing Prospectus, including timely Commission filing where required, legending and record keeping.  The Company represents that it has satisfied and agrees that it will satisfy the conditions in Rule 433 to avoid a requirement to file with the Commission any electronic road show.
7.  Conditions of the Obligations of the Underwriters. The obligations of the several Underwriters to purchase and pay for the Firm Securities on the First Closing Date and the Optional Securities to be purchased on each Optional Closing Date will be subject to the accuracy of the representations and warranties of the Company and the Selling Stockholders herein (as though made on such Closing Date), to the accuracy of the statements of officers of the Company and Selling Stockholders made pursuant to the provisions hereof, to the performance by the Company and the Selling Stockholders of their respective obligations hereunder and to the following additional conditions precedent:

(a)  Comfort Letters.  The Underwriters shall have received a “comfort letter” on the date hereof, dated the date hereof, of each of Grant Thornton LLP and PricewaterhouseCoopers LLP in form and substance satisfactory to the Representative, covering the financial information in the Registration Statement, the General Disclosure Package and the Final Prospectus and other customary matters. In addition, on each Closing Date, the Underwriters shall have received from each such accountant a “bring-down comfort letter” dated such Closing Date addressed to the Underwriters, in form and substance satisfactory to the Representative, in the form of the “comfort letter” delivered on the date hereof, except that (i) it shall cover the financial information in the Registration Statement and the Final Prospectus and (ii) procedures shall be brought down to a date no more than three (3) days prior to such Closing Date.

(b) Reserve Engineer Letter. The Underwriters shall have received a letter on the date hereof, dated the date hereof, and on each Closing Date, dated as of such Closing Date, of John T. Boyd Company in form and substance satisfactory to the Representative, covering the information with respect to the Company’s estimated 

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sand reserves in the Registration Statement, the General Disclosure Package and the Final Prospectus and other customary matters.

(c)  Filing of Prospectus.  The Final Prospectus shall have been filed with the Commission in accordance with the Rules and Regulations and Section 5(a) hereof. No stop order suspending the effectiveness of the Registration Statement or of any part thereof has been issued and no proceedings for that purpose have been instituted or, to the knowledge of the Company or the Representative, shall be contemplated by the Commission.

(d)  No Material Adverse Change.  Subsequent to the execution and delivery of this Agreement, there shall not have occurred (i) any change, or any development or event involving a prospective change, in the condition (financial or otherwise), results of operations, business, properties or prospects of the Company and its subsidiaries taken as a whole which, in the judgment of the Representative, is material and adverse and makes it impractical or inadvisable to market the Offered Securities; (ii) any downgrading in the rating of any debt securities or preferred stock of the Company by any “nationally recognized statistical rating organization” (as defined in Section 3(a)(62) of the Exchange Act), or any public announcement that any such organization has under surveillance or review its rating of any debt securities or preferred stock of the Company (other than an announcement with positive implications of a possible upgrading, and no implication of a possible downgrading, of such rating) or any announcement that the Company has been placed on negative outlook; (iii) any change in U.S. or international financial, political or economic conditions or currency exchange rates or exchange controls the effect of which is such as to make it, in the judgment of the Representative, impractical to market or to enforce contracts for the sale of the Offered Securities, whether in the primary market or in respect of dealings in the secondary market; (iv) any suspension or material limitation of trading in securities generally on the New York Stock Exchange or the NASDAQ Global Market, or any setting of minimum or maximum prices for trading on such exchange; (v) or any suspension of trading of any securities of the Company on the Nasdaq Global Market or in the over-the-counter market; (vi) any banking moratorium declared by any U.S. federal or New York authorities; (vii) any major disruption of settlements of securities, payment or clearance services in the United States or any other country where such securities are listed or (viii) any attack on, outbreak or escalation of hostilities or act of terrorism involving the United States, any declaration of war by Congress or any other national or international calamity or emergency if, in the judgment of the Representative, the effect of any such attack, outbreak, escalation, act, declaration, calamity or emergency is such as to make it impractical or inadvisable to market the Offered Securities or to enforce contracts for the sale of the Offered Securities.

(e)  Opinion of Outside Counsel for the Company and the Selling Stockholders.  The Representative shall have received (i) an opinion, dated such Closing Date, of Akin Gump Strauss Hauer & Feld LLP, in its capacity as counsel for the Company, in form and substance previously agreed upon and (ii) an opinion, dated such Closing Date, of counsel to each Selling Stockholder, in form and substance previously agreed upon. 
            
(f) Opinion of Counsel for Underwriters.  The Representative shall have received from Latham & Watkins LLP, counsel for the Underwriters, such opinion or opinions, dated such Closing Date, with respect to such matters as the Representative may require, and the Company and the Selling Stockholders shall have furnished to such counsel such documents as they request for the purpose of enabling them to pass upon such matters. 

(g)  Officer’s Certificate of the Company and the Selling Stockholders.  The Representative shall have received certificates, dated such Closing Date:
        
(A) of an executive officer of the Company and a principal financial or accounting officer of the Company in which such officers shall state that: the representations and warranties of the Company set forth in Section 2(a) of this Agreement are true and correct; the Company has complied with all agreements and satisfied all conditions on its part to be performed or satisfied hereunder at or prior to such Closing Date; no stop order suspending the effectiveness of any Registration Statement has been issued and no proceedings for that purpose have been instituted or, to their knowledge and after inquiry to the Commission, are contemplated by the Commission; to such officer’s knowledge, there are no legal or governmental proceedings required to be described in the Registration Statement, the General Disclosure Package or the Final Prospectus under the Act and the Rules and Regulations 

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which are not described as required, or any contracts required to be described in the Registration Statement, the General Disclosure Package or the Final Prospectus or to be filed as exhibits to the Registration Statement, in each case under the Act and the Rules and Regulations, which are not described and filed as so required; and, subsequent to the date of the most recent financial statements in the General Disclosure Package, there has been no material adverse change, nor any development or event involving a prospective material adverse change, in the condition (financial or otherwise), results of operations, business, properties or prospects of the Company and its subsidiaries taken as a whole except as set forth in the General Disclosure Package or as described in such certificate; and

(B) of an authorized officer of each Selling Stockholder in which such officer, in such capacity, shall state that (i) the representations and warranties of each Selling Stockholder set forth in Section 2(b) are true and correct on and as of such Closing Date and (ii) each Selling Stockholder has complied with all its agreements contained herein and has satisfied all the conditions on its part to be performed or satisfied hereunder at or prior to such Closing Date.
        
          (h)  Lock-Up Agreements.  On or prior to the date hereof, the Representative shall have received lockup letters in the form of Exhibit B from MEH Sub LLC and Gulfport Energy Corporation and each of the executive officers and directors of the Company.

(i) W-9.  To avoid a 24% backup withholding tax, the Representative shall have received from each Selling Stockholder a properly completed and executed United States Treasury Department Form W-9 (or other applicable from or statement specified by Treasury Department regulations in lieu thereof).

The Company and the Selling Stockholders will furnish the Representative with any additional opinions, certificates, letters and documents as the Representative reasonably requests and conformed copies of documents delivered pursuant to this Section 7.  The Representative may in its sole discretion waive on behalf of the Underwriters compliance with any conditions to the obligations of the Underwriters hereunder, whether in respect of an Optional Closing Date or otherwise.

8.  Indemnification and Contribution.  (a)  Indemnification of Underwriters by the Company.  The Company will indemnify and hold harmless each Underwriter, its partners, members, directors, officers, employees, agents, affiliates and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Act or Section 20 of the Exchange Act (each, an “Indemnified Party”), against any and all losses, claims, damages or liabilities, joint or several, to which such Indemnified Party may become subject, under the Act, the Exchange Act, other Federal or state statutory law or regulation or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in any part of any Registration Statement at any time, any Statutory Prospectus as of any time, the Final Prospectus or any Issuer Free Writing Prospectus, or arise out of or are based upon the omission or alleged omission of a material fact required to be stated in any Registration Statement at any time or necessary to make the statements therein, not misleading, or arise out of or are based upon the omission or alleged omission of a material fact required to be stated in any Statutory Prospectus as of any time, the Final Prospectus or any Issuer Free Writing Prospectus or necessary to make the statements therein, in the light of the circumstances under which they were made, not misleading, and will reimburse each Indemnified Party for any legal or other expenses reasonably incurred by such Indemnified Party in connection with investigating or defending against any loss, claim, damage, liability, action, litigation, investigation or proceeding whatsoever (whether or not such Indemnified Party is a party thereto), whether threatened or commenced, and in connection with the enforcement of this provision with respect to any of the above as such expenses are incurred; provided, however, that the Company will not be liable in any such case to the extent that any such loss, claim, damage or liability arises out of or is based upon an untrue statement or alleged untrue statement in or omission or alleged omission from any of such documents in reliance upon and in conformity with written information furnished to the Company by any Underwriter through the Representative specifically for use therein, it being understood and agreed that the only such information furnished by any Underwriter consists of the information described as such in subsection (c) below.

(b) Indemnification of Underwriters by Selling Stockholders.  The Selling Stockholders, severally and not jointly, will indemnify and hold harmless each Underwriter, its partners, members, directors, officers, employees, agents, affiliates and each person, if any, who controls such Underwriter within the meaning of Section 15 of the Act or Section 

17

20 of the Exchange Act (each, an “Indemnified Party”), against any and all losses, claims, damages or liabilities, joint or several, to which such Indemnified Party may become subject, under the Act, the Exchange Act, other Federal or state statutory law or regulation or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in any Registration Statement at any time, any Statutory Prospectus at any time, the Final Prospectus or any Issuer Free Writing Prospectus, or arise out of or are based upon the omission or alleged omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, and will reimburse each Indemnified Party for any legal or other expenses reasonably incurred by such Indemnified Party in connection with investigating or defending against any loss, claim, damage, liability, action, litigation, investigation or proceeding whatsoever (whether or not such Indemnified Party is a party thereto), whether threatened or commenced, and in connection with the enforcement of this provision with respect to the above as such expenses are incurred; provided, however, that a Selling Stockholder shall be subject to such liability only to the extent that the untrue statement or alleged untrue statement or omission or alleged omission is based upon Selling Stockholder Information or contained in a representation or warranty given by such Selling Stockholder in this Agreement and provided, further, that the liability under this subsection of each Selling Stockholder shall be limited to an amount equal to the aggregate gross proceeds after underwriting commissions and discounts, but before expenses, to such Selling Stockholder from the sale of Offered Securities sold by such Selling Stockholder hereunder.    

(c)  Indemnification of Company, its Directors and Officers and Selling Stockholders.  Each Underwriter will severally and not jointly indemnify and hold harmless the Company, each of its directors and each of its officers who signs a Registration Statement and each person, if any, who controls the Company within the meaning of Section 15 of the Act or Section 20 of the Exchange Act, and each Selling Stockholder (each, an “Underwriter Indemnified Party”) against any losses, claims, damages or liabilities to which such Underwriter Indemnified Party may become subject, under the Act, the Exchange Act, or other Federal or state statutory law or regulation or otherwise, insofar as such losses, claims, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or alleged untrue statement of any material fact contained in any Registration Statement at any time, any Statutory Prospectus at any time, the Final Prospectus or any Issuer Free Writing Prospectus or arise out of or are based upon the omission or the alleged omission of a material fact required to be stated therein or necessary to make the statements therein not misleading, in each case to the extent, but only to the extent, that such untrue statement or alleged untrue statement or omission or alleged omission was made in reliance upon and in conformity with written information furnished to the Company by such Underwriter through the Representative specifically for use therein, and will reimburse any legal or other expenses reasonably incurred by such Underwriter Indemnified Party in connection with investigating or defending against any such loss, claim, damage, liability, action, litigation, investigation or proceeding whatsoever (whether or not such Underwriter Indemnified Party is a party thereto), whether threatened or commenced, based upon any such untrue statement or omission, or any such alleged untrue statement or omission as such expenses are incurred, it being understood and agreed that the only such information furnished by any Underwriter consists of (i) the following information in the Final Prospectus furnished on behalf of each Underwriter: the information contained in the seventh paragraph and information with respect to stabilization transactions appearing in the fifteenth paragraph, in each case under the caption “Underwriting.” 

(d)  Actions against Parties; Notification. Promptly after receipt by an indemnified party under this Section of notice of the commencement of any action, such indemnified party will, if a claim in respect thereof is to be made against an indemnifying party under subsection (a), (b) or (c) above, notify the indemnifying party of the commencement thereof; but the failure to notify the indemnifying party shall not relieve it from any liability that it may have under subsection (a), (b) or (c) above except to the extent that it has been materially prejudiced (through the forfeiture of substantive rights or defenses) by such failure; and provided further that the failure to notify the indemnifying party shall not relieve it from any liability that it may have to an indemnified party otherwise than under subsection (a), (b) or (c) above. In case any such action is brought against any indemnified party and it notifies an indemnifying party of the commencement thereof, the indemnifying party will be entitled to participate therein and, to the extent that it may wish, jointly with any other indemnifying party similarly notified, to assume the defense thereof, with counsel satisfactory to such indemnified party (who shall not, except with the consent of the indemnified party, be counsel to the indemnifying party), and after notice from the indemnifying party to such indemnified party of its election so to assume the defense thereof, the indemnifying party will not be liable to such indemnified party under this Section for any legal or other expenses subsequently incurred by such indemnified party in connection with the defense thereof other than reasonable costs of investigation. No indemnifying party shall, without the prior written consent of the indemnified party, effect any settlement of any pending or threatened action in respect of which any indemnified party 

18

is or could have been a party and indemnity could have been sought hereunder by such indemnified party unless such settlement (i) includes an unconditional release of such indemnified party from all liability on any claims that are the subject matter of such action and (ii) does not include a statement as to, or an admission of, fault, culpability or a failure to act by or on behalf of an indemnified party.

(e)  Contribution.  If the indemnification provided for in this Section is unavailable or insufficient to hold harmless an indemnified party under subsection (a), (b) or (c) above, then each indemnifying party shall contribute to the amount paid or payable by such indemnified party as a result of the losses, claims, damages or liabilities referred to in subsection (a), (b) or (c) above (i) in such proportion as is appropriate to reflect the relative benefits received by the Company and the Selling Stockholders on the one hand and the Underwriters on the other from the offering of the Offered Securities pursuant to this Agreement or (ii) if the allocation provided by clause (i) above is not permitted by applicable law, in such proportion as is appropriate to reflect not only the relative benefits referred to in clause (i) above but also the relative fault of the Company and the Selling Stockholders on the one hand and the Underwriters on the other in connection with the statements or omissions which resulted in such losses, claims, damages or liabilities as well as any other relevant equitable considerations. The relative benefits received by the Company and the Selling Stockholders on the one hand and the Underwriters on the other shall be deemed to be in the same proportion as the total net proceeds from the offering (before deducting expenses) received by the Company and the Selling Stockholders bear to the total underwriting discounts and commissions received by the Underwriters. The relative fault shall be determined 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 the Company, the Selling Stockholders or the Underwriters and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such untrue statement or omission. The amount paid by an indemnified party as a result of the losses, claims, damages or liabilities referred to in the first sentence of this subsection (e) shall be deemed to include any legal or other expenses reasonably incurred by such indemnified party in connection with investigating or defending any action or claim which is the subject of this subsection (e). Notwithstanding the provisions of this subsection (e), no Underwriter shall be required to contribute any amount in excess of the amount by which the total price at which the Securities underwritten by it and distributed to the public were offered to the public exceeds the amount of any damages which such Underwriter has otherwise been required to pay by reason of such untrue statement or omission or alleged untrue statement or omission.  No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. The Underwriters’ obligations in this subsection (e) to contribute are several in proportion to their respective underwriting obligations and not joint.  The Company, the Selling Stockholders and the Underwriters agree that it would not be just and equitable if contribution pursuant to this Section 8(e) were determined by pro rata allocation (even if the Underwriters were treated as one entity for such purpose) or by any other method of allocation which does not take account of the equitable considerations referred to in this Section 8(e); provided that the liability under this subsection of each Selling Stockholder shall be limited to an amount equal to the aggregate gross proceeds after underwriting commissions and discounts, but before expenses, to such Selling Stockholder from the sale of Offered Securities sold by such Selling Stockholder hereunder.    

9.  Default of Underwriters.  If any Underwriter or Underwriters default in their obligations to purchase Offered Securities hereunder on either the First Closing Date or any Optional Closing Date and the aggregate number of shares of Offered Securities that such defaulting Underwriter or Underwriters agreed but failed to purchase does not exceed 10% of the total number of shares of Offered Securities that the Underwriters are obligated to purchase on such Closing Date, the Representative may make arrangements satisfactory to the Selling Stockholders for the purchase of such Offered Securities by other persons, including any of the Underwriters, but if no such arrangements are made by such Closing Date, the non-defaulting Underwriters shall be obligated severally, in proportion to their respective commitments hereunder, to purchase the Offered Securities that such defaulting Underwriters agreed but failed to purchase on such Closing Date. If any Underwriter or Underwriters so default and the aggregate number of shares of Offered Securities with respect to which such default or defaults occur exceeds 10% of the total number of shares of Offered Securities that the Underwriters are obligated to purchase on such Closing Date and arrangements satisfactory to the Representative and the Selling Stockholders for the purchase of such Offered Securities by other persons are not made within 36 hours after such default, this Agreement will terminate without liability on the part of any non-defaulting Underwriter, the Company or the Selling Stockholders, except as provided in Section 11 (provided that if such default occurs with respect to Optional Securities after the First Closing Date, this Agreement will not terminate as to the Firm Securities or any Optional Securities purchased prior to such termination). As used in this Agreement, the term 

19

“Underwriter” includes any person substituted for an Underwriter under this Section. Nothing herein will relieve a defaulting Underwriter from liability for its default.

10.  [Reserved]. 

11.  Survival of Certain Representations and Obligations.  The respective indemnities, agreements, representations, warranties and other statements of the Selling Stockholders, the Company or its officers and of the several Underwriters set forth in or made pursuant to this Agreement will remain in full force and effect, regardless of any investigation, or statement as to the results thereof, made by or on behalf of any Underwriter, any Selling Stockholder, the Company or any of their respective representatives, officers or directors or any controlling person, and will survive delivery of and payment for the Offered Securities. If the purchase of the Offered Securities by the Underwriters is not consummated for any reason other than solely because of the termination of this Agreement pursuant to Section 9 hereof, the Company will reimburse the Underwriters for all out-of-pocket expenses (including fees and disbursements of counsel) reasonably incurred by them in connection with the offering of the Offered Securities, and the respective obligations of the Company, the Selling Stockholders and the Underwriters pursuant to Section 8 hereof shall remain in effect.  In addition, if any Offered Securities have been purchased hereunder, the representations and warranties in Section 2 and all obligations under Section 5 shall also remain in effect. 

12.  Notices. All communications hereunder will be in writing and, if sent to the Underwriters, will be mailed, hand delivered or telecopied and confirmed to the Representative, Credit Suisse Securities (USA) LLC, Eleven Madison Avenue, New York, N.Y. 10010-3629, Attention:  LCD-IBD, or, if sent to the Company, will be mailed, hand delivered or telecopied and confirmed to it at 4727 Gaillardia Parkway, Suite 200, Oklahoma City, Oklahoma 73142, or, if sent to the Selling Stockholders or any of them, will be mailed, delivered or telecopied and confirmed as set forth on Schedule B; provided, however, that any notice to an Underwriter pursuant to Section 8 will be mailed, hand delivered or telecopied and confirmed to such Underwriter.

13.  Successors. This Agreement will inure to the benefit of and be binding upon the parties hereto and their respective successors and the officers and directors and controlling persons referred to in Section 8, and no other person will have any right or obligation hereunder.

14.  Representation of Underwriters.  The Representative will act for the several Underwriters in connection with the transactions contemplated by this Agreement, and any action under this Agreement taken by the Representative will be binding upon all the Underwriters. 

15.  Counterparts.  This Agreement may be executed in any number of counterparts, each of which shall be deemed to be an original, but all such counterparts shall together constitute one and the same Agreement.

16.  Absence of Fiduciary Relationship.  The Company and the Selling Stockholders acknowledge and agree that:

(a)  No Other Relationship.  The Representative has been retained solely to act as an underwriter in connection with the sale of the Offered Securities and that no fiduciary, advisory or agency relationship between the Company or the Selling Stockholders, on the one hand, and the Representative, on the other,  has been created in respect of any of the transactions contemplated by this Agreement or the Final Prospectus, irrespective of whether the Representative has advised or is advising the Company or the Selling Stockholders on other matters; 

(b) Arms’ Length Negotiations.  The price of the Offered Securities set forth in this Agreement was established by the Selling Stockholders following discussions and arms-length negotiations with the Representative, and the Company and the Selling Stockholders are capable of evaluating and understanding and understand and accept the terms, risks and conditions of the transactions contemplated by this Agreement;

(c) Absence of Obligation to Disclose.  The Company and the Selling Stockholders have been advised that the Representative and its affiliates are engaged in a broad range of transactions which may involve interests that differ from those of the Company or the Selling Stockholders and that the Representative has no obligation to disclose such interests and transactions to the Company or the Selling Stockholders by virtue of any fiduciary, advisory or agency relationship; and

20

(d)  Waiver.  The Company and the Selling Stockholders waive, to the fullest extent permitted by law, any claims they may have against the Representative for breach of fiduciary duty or alleged breach of fiduciary duty and agree that the Representative shall have no liability (whether direct or indirect) to the Company or the Selling Stockholders in respect of such a fiduciary duty claim or to any person asserting a fiduciary duty claim on behalf of or in right of the Company, including stockholders, employees or creditors of the Company.

17.  Applicable Law. This Agreement shall be governed by, and construed in accordance with, the laws of the State of New York.

The Company hereby submits to the non-exclusive jurisdiction of the Federal and state courts in the Borough of Manhattan in The City of New York in any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby.  The Company irrevocably and unconditionally waives any objection to the laying of venue of any suit or proceeding arising out of or relating to this Agreement or the transactions contemplated hereby in Federal and state courts in the Borough of Manhattan in the City of New York and irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such suit or proceeding in any such court has been brought in an inconvenient forum.  

18.  Patriot Act.  In accordance with the requirements of the USA Patriot Act (Title III of Pub. L. 107-56 (signed into law October 26, 2001)), the Underwriters are required to obtain, verify and record information that identifies their respective clients, including the Company, which information may include the name and address of their respective clients, as well as other information that will allow the Underwriters to properly identify their respective clients.

[Signature Pages Follow]
    

21

If the foregoing is in accordance with the Representative’s understanding of our agreement, kindly sign and return to the Company one of the counterparts hereof, whereupon it will become a binding agreement among the Selling Stockholders, Company and the several Underwriters in accordance with its terms.

Very truly yours,

MAMMOTH ENERGY SERVICES, INC.

By:        /s/ Arty Straehla                
Name:    Arty Straehla
Title:     CEO

MEH SUB LLC

By:        /s/ Arthur Amron                
Name:    Arthur Amron
Title:    Vice President and Assistant Secretary

GULFPORT ENERGY CORPORATION

By:        /s/ Paul K. Heerwagen            
Name:    Paul K. Heerwagen, IV
Title:    SVP, Corporate Development

Signature Page to Underwriting Agreement

The foregoing Underwriting Agreement is hereby confirmed and accepted as of the date first above written.

CREDIT SUISSE SECURITIES (USA) LLC

By:        /s/ Robert Santangelo        
Name:    Robert Santangelo
Title:    Managing Director

                        

Acting on behalf of itself and as the Representative of the several Underwriters.

    

Signature Page to Underwriting Agreement

SCHEDULE A

	
		
	Underwriter
	Number of
Firm Securities
to be Purchased

	Credit Suisse Securities (USA) LLC   
	2,400,000

	Barclays Capital Inc.    
	400,000

	Johnson Rice & Company L.L.C.    
	250,000

	Raymond James & Associates, Inc.    
	250,000

	Tudor, Pickering, Holt & Co. Securities Inc.    
	250,000

	Piper Jaffray & Co.    
	250,000

	Capital One Securities, Inc.    
	80,000

	Imperial Capital, LLC   
	80,000

	PNC Capital Markets LLC   
	40,000

	         Total   
	4,000,000

A-1

SCHEDULE B

	
					
	 
	

Selling Stockholder
	Number of
Firm Securities to be Sold
	 
	Number of Optional Securities to be Sold

	MEH Sub LLC
	2,764,400
	 
	414,660

	Gulfport Energy Corporation
	1,235,600
	 
	185,340

	   Total......................................................................
	4,000,000
	 
	600,000

The notice address for each Selling Stockholder for purposes of Section 12 of this Agreement is as follows:

MEH Sub LLC
c/o Wexford Capital LP
411 West Putnam Avenue
Greenwich, CT 06830
Attn: General Counsel

Gulfport Energy Corporation
14313 N. May Avenue, Suite 100
Oklahoma City, OK 73134
Attn: Chief Financial Officer

B-1

SCHEDULE C
		
	1.
	General Use Free Writing Prospectuses (included in the General Disclosure Package)

“General Use Issuer Free Writing Prospectus” includes each of the following documents:
None.
		
	2.
	Other Information Included in the General Disclosure Package

The following information is also included in the General Disclosure Package:
Price per share to the public: As to each investor, the price paid by such investor.

C-1

SCHEDULE D

Subsidiaries of the Company

	
			
	Entity
	Percentage Ownership
	Jurisdiction

	5 Star Electric LLC
	100%
	KY

	Barracuda Logistics LLC
	100%
	DE

	Bison Drilling and Field Services LLC
	100%
	DE

	Bison Trucking LLC
	100%
	DE

	Cobra Acquisitions LLC
	100%
	DE

	Cobra Energy LLC
	100%
	DE

	Great White Sand Tiger Lodging Ltd.
	100%
	Alberta, CA

	Higher Power Electrical LLC
	100%
	TX

	Mammoth Energy Partners LLC
	100%
	DE

	Mammoth Energy Services, Inc.
	100%
	DE

	Mammoth Equipment Leasing LLC
	100%
	DE

	Mr. Inspections LLC
	100%
	DE

	Muskie Proppant LLC
	100%
	DE

	Panther Drilling Systems LLC
	100%
	DE

	Piranha Proppant LLC
	100%
	DE

	Redback Energy Services LLC
	100%
	DE

	Redback Coil Tubing LLC
	100%
	DE

	Redback Pumpdown Services LLC
	100%
	DE

	Silverback Energy Services LLC
	100%
	DE

	South River Road LLC
	100%
	WI

	Stingray Cementing LLC
	100%
	DE

	Stingray Energy Services LLC
	100%
	DE

	Stingray Logistics LLC
	100%
	DE

	Stingray Pressure Pumping LLC
	100%
	DE

	Sturgeon Acquisitions LLC
	100%
	DE

	Taylor Frac LLC
	100%
	WI

	Taylor Real Estate Investments LLC
	100%
	WI

	Tiger Shark Logistics LLC
	100%
	DE

	White Wing Tubular Services LLC
	100%
	DE

D-1

Exhibit A

[Form of Press Release]

Mammoth Energy Services, Inc.
[Date]

Mammoth Energy Services, Inc. (“Company”) announced today that Credit Suisse Securities (USA) LLC, the lead book-running manager in the recent public sale of        shares of common stock of the Company, is [waiving] [releasing] a lock-up restriction with respect to    shares of the Company’s common stock held by [certain officers or directors] [an officer or director] of the Company.  The [waiver] [release] will take effect on    ,    20    , and the shares may be sold on or after such date.   

This press release is not an offer for sale of the securities in the United States or in any other jurisdiction where such offer is prohibited, and such securities may not be offered or sold in the United States absent registration or an exemption from registration under the United States Securities Act of 1933, as amended.

Exhibit B

Form of Lock-Up Letter

Mammoth Energy Services, Inc.
4727 Gaillardia Parkway, Suite 200
Oklahoma City, OK 73142

Credit Suisse Securities (USA) LLC
as Representative of the several Underwriters
named in the Underwriting Agreement specified below
c/o    Credit Suisse Securities (USA) LLC
Eleven Madison Avenue,
New York, N.Y. 10010-3629

Dear Sirs:

As an inducement to the Underwriters to execute the Underwriting Agreement (the “Underwriting Agreement”), pursuant to which an offering will be made of shares of common stock, par value $0.01 per share (the “Securities”), of Mammoth Energy Services, Inc., and any successor (by merger or otherwise) thereto, (the “Company”), the undersigned hereby agrees that during the period specified in the following paragraph (the “Lock-Up Period”), the undersigned will not offer, sell, contract to sell, pledge or otherwise dispose of, directly or indirectly, any Securities or securities convertible into or exchangeable or exercisable for any Securities, enter into a transaction which would have the same effect, or enter into any swap, hedge or other arrangement that transfers, in whole or in part, any of the economic consequences of ownership of the Securities, whether any such aforementioned transaction is to be settled by delivery of the Securities or such other securities, in cash or otherwise, or publicly disclose the intention to make any such offer, sale, pledge or disposition, or to enter into any such transaction, swap, hedge or other arrangement, without, in each case, the prior written consent of Credit Suisse Securities (USA) LLC (“Credit Suisse”).  In addition, the undersigned agrees that, without the prior written consent of Credit Suisse, it will not, during the Lock-Up Period, make any demand for or exercise any right with respect to, the registration of any Securities or any security convertible into or exercisable or exchangeable for the Securities.

The initial Lock-Up Period will commence on the date of this Lock-Up Agreement (this “Lock-Up Agreement”) and continue and include the date 45 days after the public offering date set forth on the final prospectus used to sell the Securities (the “Public Offering Date”) pursuant to the Underwriting Agreement.

The undersigned agrees that, prior to engaging in any transaction or taking any other action that is subject to the terms of this Lock-Up Agreement during the period from the date of this Lock-Up Agreement to and including the 34th day following the expiration of the initial Lock-Up Period, it will give notice thereof to the Company and will not consummate such transaction or take any such action unless it has received written confirmation from the Company that the Lock-Up Period (as may have been extended pursuant to the previous paragraph) has expired.

Any Securities received upon exercise of options or other securities of the Company granted to the undersigned will also be subject to this Lock-Up Agreement. Any Securities acquired by the undersigned in the open market will not be subject to this Lock-Up Agreement; provided that with respect to any sale or other disposition of such Securities, no filing under the Securities Exchange Act of 1934 (the “Exchange Act”) (other than on Form 5) or other public announcement shall be required or shall be voluntarily made by any party in connection with subsequent sales of such Securities acquired in such open market transactions during the Lock-Up Period.  Additionally, the restrictions in this Lock-Up Agreement shall not apply to (a) any exercise of options or vesting or exercise of any other equity-based award, in each case, outstanding on the Public Offering Date, and in each case under the Company’s equity incentive plan or any other plan or agreement described in the prospectus included in the Registration Statement, provided that any Securities received upon such exercise or vesting will also be subject to this Lock-Up Agreement, (b) the entering into a written trading plan designed to comply with Rule 10b5-1 of the 

Exchange Act, provided that no sales are made pursuant to such trading plan during the Lock-Up Period, provided that no filing or public announcement by any party under the Exchange Act or otherwise shall be required (or shall be voluntarily made in connection with such trading plan), (c) transfers as a bona fide gift or gifts, (d) transfers to a family member, trust, family limited partnership or family limited liability company for the direct or indirect benefit of the undersigned or his or her family members, (e) transfers by testate or intestate succession, (f) if the undersigned is a partnership, limited liability company or a corporation, transfers to its limited partners, members or stockholders as part of a distribution, or to any corporation, partnership or other entity that is its affiliate, (g) the sale by an officer or director of the Company, together with the sales by other officers or directors of the Company signing substantially similar agreements of up to 100,000 Securities in the aggregate, as allocated by the Company or (h) to the extent applicable, transfers to the undersigned’s employer, if required by the terms of such individual’s employment, provided that in each transfer pursuant to clauses (c)-(f) the transferee agrees to be bound in writing by the terms of this Lock-Up Agreement prior to such transfer, such transfer shall not involve a disposition for value and no filing or public announcement by any party (donor, donee, transferor or transferee) under the Exchange Act or otherwise shall be required or shall be voluntarily made in connection with such transfer (other than a filing on a Form 5); provided further, that in the case of clause (h), the transferee agrees to be bound by the terms of this or a substantially similar Lock-Up Agreement.

In furtherance of the foregoing, the Company and its transfer agent and registrar are hereby authorized to decline to make any transfer of shares of Securities if such transfer would constitute a violation or breach of this Lock-Up Agreement.

If the undersigned is an officer or director of the Company, the undersigned further agrees that the foregoing restrictions in this Lock-Up Agreement shall be equally applicable to any issuer-directed Securities the undersigned may purchase in the above-referenced offering.

If the undersigned is an officer or director of the Company, (i) Credit Suisse agrees that, at least three business days before the effective date of any release or waiver of the foregoing restrictions in connection with a transfer of Securities, Credit Suisse will notify the Company of the impending release or waiver, and (ii) the Company has agreed in the Underwriting Agreement to announce the impending release or waiver by press release through a major news service at least two business days before the effective date of the release or waiver.  Any release or waiver granted by Credit Suisse hereunder to any such officer or director shall only be effective two business days after the publication date of such press release.  The provisions of this paragraph will not apply if (a) the release or waiver is effected solely to permit a transfer not for consideration and (b) the transferee has agreed in writing to be bound by the same terms described in this Lock-Up Agreement to the extent and for the duration that such terms remain in effect at the time of the transfer. 

This Lock-Up Agreement shall be binding on the undersigned and the successors, heirs, personal representatives and assigns of the undersigned.    

It is understood that if the Underwriting Agreement is executed yet terminates (other than the provisions thereof that survive termination) prior to payment for and delivery of the Offered Securities, the undersigned shall be released from all obligations under this Lock-Up Agreement.  Further, this Lock-Up Agreement shall lapse and become null and void if the Public Offering Date shall not have occurred on or before August 1, 2018.  This agreement shall be governed by, and construed in accordance with, the laws of the State of New York.

Very truly yours,

....................................................
[Name of stockholder]

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