Document:

EX-10.14

 Exhibit 10.14 
 MASTER PURCHASE ORDER AGREEMENT 
 This Master Purchase Order
Agreement (the “Agreement”) is effective as of the 28 day of February, 2013 (the “Effective Date”), by and between Chem Rock Technologies, LLC (“Chem Rock”), a Texas limited liability
company, whose mailing address is 600 Congress Ave., Suite 300, Austin, Texas 78701, and Green Field Energy Services, Inc. (“GFES”), a Delaware corporation, whose mailing address is 4023 Ambassador Caffery Parkway,
Suite 200, Lafayette, Louisiana 70503. 
 Recitals 

I. WHEREAS, GFES is in the business of providing comprehensive well service capabilities, including hydraulic fracturing services,
to various customers within the oil and gas industry. 
 II. WHEREAS, Chem Rock is in the business of supplying chemical
Products to oil and gas operators and well service providers, including chemical products used in the hydraulic fracturing process. 
 III. WHEREAS, the parties desire to enter into this Agreement whereby GFES will issue a Purchase Order of at least FORTY MILLION DOLLARS ($40,000,000.00) for Products (as defined below) from Chem
Rock upon the terms, conditions, and consideration set forth in this Agreement (the “Purchase Order”). 

Terms and Conditions of the Agreement 
 The parties agree as follows: 
  

	1.	GENERAL OBLIGATIONS OF THE PARTIES 

 1.1 Purchase of Products. 
 1.1.1 Purchase Order. GFES agrees to
issue the Purchase Order, No.                    , to Chem Rock in order to purchase, on a nonexclusive basis, Products (as defined below) from Chem
Rock for the Term (as defined below) of this Agreement. The Purchase Order shall be in GFES’ standard form and will stipulate a value for Products to be purchased by GFES, but not an exact listing of specific Product names and volumes, and
shall remain open for the Term of this Agreement. The Purchase Order, as supplemented by this Agreement, constitutes a binding contract between GFES and Chem Rock. Specifically, GFES agrees to pay for all Products ordered under the Purchase Order,
and Chem Rock agrees to furnish the Products ordered thereunder. All purchases under the Purchase Order shall be subject to the terms of this Agreement and the terms and conditions (the “Terms and Conditions”) attached hereto as
Exhibit “A”, which Terms and Conditions are incorporated herein by reference. 
  

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 1.1.2 Initial Payment. GFES further agrees to pay Chem Rock ONE MILLION
DOLLARS ($1,000,000.00) (the “Initial Prepayment”) upon the execution of this Agreement to be credited against the Aggregate Minimum Purchase requirement in subsection 1.3.1, below, but not the Monthly Minimum Payment requirement in
subsection 1.3.2, below. GFES further agrees to pay Chem Rock the additional full sum of TWO MILLION NINE HUNDRED THOUSAND DOLLARS ($2,900,000.00)(the “Financing Prepayment”) to be credited against the Aggregate Minimum Purchase
requirement in subsection 1.3.1, below, but not the Monthly Minimum Payment requirement in subsection 1.3.2. The Financing Prepayment will be paid upon the earlier of: closing a $30 Million working capital credit facility extended to
GFES by PNC or other lending institution; or February 28, 2013 (the “Credit Facility”). The Initial Prepayment under this Section 1.1.2 will be credited against the last invoices for the Products under the Aggregate Minimum
Purchase requirement. One-fourth of Financing Prepayment under this Section 1.1.2 will be credited against the purchases of Products during each calendar quarter commencing with the third calendar quarter of this Agreement and ending with the
sixth calendar quarter of this Agreement (i.e., $725,000 for each of calendar quarters 3-6 under this Agreement). 

1.1.3 Products. As used in this Agreement, the term “Products” shall mean any and all chemicals and chemical
products manufactured or sold by Chem Rock, including, but not limited to, chemicals and chemical products used in the hydraulic fracturing process and/or any other well service process, as well as any special order, custom, or non-standard chemical
or chemical product; provided, however, the term “Products” shall exclude guar-based products. A list of most Products offered by Chem Rock that can be ordered under the Purchase Order is set forth on the attached
Exhibit “B”. 
 1.1.4 Shell Exclusivity. During the Term of this Agreement, GFES hereby agrees to purchase
from Chem Rock, and appoints Chem Rock as its exclusive supplier of, all Products to be used by GFES and its affiliates in connection with servicing any oil or gas exploration and development of Shell and its affiliates anywhere in the United States
or Canada on the terms and conditions of this Agreement. The initial pricing of the Products to be sold to Green Field under this subsection 1.1.4 are set forth in Exhibit “C”, which prices may be changed in the future as follow:
Chem Rock shall increase prices to GFES when Chem Rock’s direct costs for product(s) have increased. The basis for price increase shall be provided for in the form of a correspondence that Chem Rock receives from its supplier, manufacturer, or
toll blender notifying Chem Rock of the increase. All price increases will be in writing. Products sold to GFES under this subsection 1.1.4 shall be applied against the Aggregate Minimum Purchase requirement and the Monthly Minimum Purchase
requirement. 
 1.2 Delivery. 
 1.2.1 Timing of Deliver or Performance. Chem Rock agrees to supply and deliver all Products ordered by GFES within a commercially reasonable time from the date of receipt of each Purchase Order
supplement. 
  

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 1.2.2 Title. With respect to all Products purchased pursuant to this Agreement,
title, risk of loss, and all liability shall pass to GFES as set forth in the Terms and Conditions. 
 1.3 Minimum Purchase
Requirements and Payment Terms. 
 1.3.1 Aggregate Minimum Purchase. Notwithstanding anything to the
contrary in this Agreement or the Purchase Order, GFES agrees to purchase at least FORTY MILLION DOLLARS ($40,000,000.00) in Products in the aggregate under the Purchase Order from Chem Rock over the Term of this Agreement (the “Aggregate
Minimum Purchase”). GFES, in its discretion, may purchase in excess of FORTY MILLION DOLLARS ($40,000,000.00) in Products from Chem Rock over the Term of this Agreement, but shall be absolutely obligated to purchase at least the Aggregate
Minimum Purchase amount described herein. In addition to any other remedy allowed by this Agreement or applicable law, in the event of a breach of this subsection 1.3.1 by GFES, Chem Rock shall have the right to collect stipulated or liquidated
damages in an amount equal to GFES’ deficiency under Chem Rock’s average lost profit on the Aggregate Minimum Purchase requirement.1 

1.3.2 Monthly Minimum Payments. Notwithstanding anything to the contrary in this Agreement or the Purchase Order, for so
long as GFES has not paid in full for the Aggregate Minimum Purchase, GFES agrees to pay each month the greater of: (i) the amounts owed in a given month for prior purchase of Products; or (ii) ONE MILLION DOLLARS ($1,000,000.00)(the
“Monthly Minimum Payment”). 
 1.3.3 Purchase Price. Chem Rock agrees to charge GFES market competitive
prices for all Products ordered. In the event that GFES requests any custom or non-standard Products, Chem Rock agrees to charge GFES the actual cost of producing and/or providing such custom or non-standard Products, plus a reasonable mark-up for
profit consistent with Chem Rock’s customary practices. 
  

 

	1 	For example, if GFES breaches this provision by only purchasing $30,000,000.00 in Products during the Term of this Agreement, and Chem Rock’s average profit on
this $30 million was $3 million, or 10%, then Chem Rock would be entitled to $1,000,000.00 stipulated or liquidated damages, or 10% of $10 million. 

 

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 1.3.4 Lower Competitive Price. GFES at any time may submit written evidence to Chem
Rock that GFES has received a competitive pricing offer from a non-affiliated producer offering to sell products of like grade and activity level, and in the same or lesser quantity, as that offered by Chem Rock, but at 95% or less than the
delivered price charged by Chem Rock for such Products under this Agreement. Within seven (7) days after receipt of such competitive pricing offer, Chem Rock will notify GFES as to whether Chem Rock will match the competitive offer on future
Product orders. If Chem Rock does not agree to match the offer, GFES may, in its discretion, purchase some or all of the products offered under the competitive pricing offer from the applicable non-affiliated producer; provided, however,
that no purchase of products under any competitive offer from a third party shall act to reduce, set off, pay down, or otherwise diminish GFES’ Aggregate Minimum Purchase requirements ($40,000,000.00) described in subsection 1.3.1, and
that it is the intent of the parties that only purchases of Products under the Purchase Order shall count toward GFES’ Aggregate Minimum Purchase requirements. 
 1.3.5 Other Charges. GFES agrees to pay any and all (i) sales and/or use taxes, (ii) transportation and delivery costs and charges, and (iii) other miscellaneous or governmental
costs, fees and/or taxes associated with the Products it orders from Chem Rock consistent with the Terms and Conditions. 
 1.3.6
Invoices. In accordance with its customary practices, Chem Rock shall invoice GFES upon each shipment of Products. With respect to field orders, Chem Rock will clearly place GFES’ identifying information and well site location on each
applicable invoice and any related shipping documentation (bills of lading, etc.). GFES shall pay or give written notice of a dispute for each invoice within the time period set forth in the Terms and Conditions. In the event of any bona fide
dispute over one or more charges set forth on any invoice, GFES shall pay the undisputed portion of the invoice and the parties agree to work together to attempt to settle disputed portions of the invoice within seven (7) days of GFES’
providing written notice of the dispute to Chem Rock. 
 1.3.7 Past Due Amounts. Past due balances are subject to the
charges set forth in the Terms and Conditions lesser, in addition to any other remedies allowed by applicable law. 
  

	2.	SCOPE AND TERM OF AGREEMENT 

 2.1 Scope of Agreement. This Agreement, including the Terms and Conditions, shall govern and control all purchases of Products by GFES from Chem Rock throughout the Term of this Agreement. Any
existing understanding, contract, or agreement between the parties, whether oral or written, concerning the subject matter herein is replaced and superseded by this Agreement. 

 

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 2.2 Term of Agreement. This Agreement shall remain in full force and effect for a
period of eighteen (18) months beginning on the Effective Date and ending on the eighteen-month anniversary date of the Effective Date (the “Term”), unless sooner terminated as provided for in this Agreement. If GFES, in good
faith, fails to meet the Aggregate Minimum Purchase during the 18-month Term due to non-competitive pricing as described in 1.3.4, Chem Rock delivery issues substantiated in writing by GFES, or written mandates from clients to GFES to use a
non-affiliated producer’s products, then the agreement will continue until the Aggregate Minimum Purchase is reached without GFES incurring liquidated damages; provided, that if a GFES client mandates that GFES use a non-affiliated
producer’s products, GFES shall provide such client’s contact information directly to Chem Rock, and authorize Chem Rock to contact the client directly to persuade such client to use Chem Rock products. 

2.3 Termination of Agreement. This Agreement may be terminated as follows: (i) upon the expiration of the Term as described
in section 2.2, above; (ii) at any time with the mutual written consent of GFES and Chem Rock; (iii) by GFES upon thirty days following written notice of breach of the Agreement by Chem Rock if such breach is not cured within such
thirty day period, and (iv) by Chem Rock upon thirty days following written notice of breach of the Agreement by GFES if such breach is not cured within such thirty day period. 

2.4 Survival of Obligations. The termination of this Agreement (a) under Sections 2.3(i) shall not relieve either party
from fully performing any and all obligations that arose or accrued on or before the date of termination of this Agreement, specifically including, but not limited to, GFES’ full and complete satisfaction of the Aggregate Minimum Purchase
requirements ($40,000,000.00) described in subsection 1.3.1., (b) under Sections 2.3(ii) will relieve both parties from any and all obligations that arise after the date of such termination, including but not limited to GFES’
satisfaction of the Aggregate Minimum Purchase requirements described in subsection 1.3.1. to the extent not already satisfied, (c) under Section 2.3(iii) shall not relieve Chem Rock from fully performing any and all obligations that
arose or accrued on or before the date of termination of this Agreement, however GFES’ full and complete satisfaction of the Aggregate Minimum Purchase requirements ($40,000,000.00) described in subsection 1.3.1 will be deemed
satisfied., and (d) under Section 2.3(iv) shall not relieve GFES from fully performing any and all obligations that arose or accrued on or before the date of termination of this Agreement, specifically including, but not limited to,
GFES’ full and complete satisfaction of the Aggregate Minimum Purchase requirements described in subsection 1.3.1. 
  

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	3.	LIMITED WARRANTIES 

3.1 Limited Product and Service Warranty. Chem Rock warrants that it has good and marketable title to all Products purchased by and
delivered to GFES pursuant to this Agreement, and that all such Products are free and clear of all liens and encumbrances. Chem Rock further warrants that all Products: (i) shall conform to GFES’ standard specifications or such other
specifications as are made a part of any applicable Purchase Order; (ii) shall conform to all applicable samples furnished to and approved by GFES; and (iii) shall not infringe any patent, trademark, or copyright. 

3.2 Waiver of Warranties. EXCEPT FOR THE LIMITED WARRANTY SET FORTH IN SECTION 3.1, ABOVE, GFES EXPRESSLY WAIVES AND
DISCLAIMS ANY AND ALL OTHER WARRANTIES OF ANY NATURE, WHETHER EXPRESS OR IMPLIED, ORAL OR WRITTEN, RELATING TO ANY PRODUCTS SOLD BY CHEM ROCK, INCLUDING, BUT NOT LIMITED TO, (i) THE WARRANTIES OF MERCHANTABILITY, SUITABILITY, OR FITNESS OF THE
PRODUCTS FOR GFES’ BUSINESS OR ANY OTHER PURPOSE, (ii) THE WARRANTY OF ANY PRODUCT BEING FREE FROM ANY HIDDEN, LATENT, OR APPARENT REDHIBITORY OR OTHER DEFECTS OR DEFICIENCIES, AND (iii) ALL WARRANTIES IMPLIED UNDER ANY APPLICABLE
STATE STATUTE, OR ANY OTHER PROVISION OF APPLICABLE LAW. FURTHER, CHEM ROCK MAKES NO REPRESENTATIONS AND ASSUMES NO RESPONSIBILITY WHATSOEVER WITH RESPECT TO FREEDOM FROM INFRINGEMENT OF ANY PATENT AND/OR COPYRIGHT RESULTING FROM GFES’ USE OF
PRODUCTS OR CHEM ROCK’S INFORMATION. 
  

	4.	ACKNOWLEDGMENTS OF GFES 

 GFES acknowledges all of its obligations pursuant to this Agreement, specifically including, but not limited to, the issuance of the Purchase Order described in subsection 1.1.1, above, its
Initial Prepayment ($1,000,000.00) described in subsection 1.1.2, above, its Financing Prepayment ($2,900,000.00) described in subsection 1.1.2, above, its Aggregate Minimum Purchase requirements ($40,000,000.00) described in
subsection 1.3.1, above, its Monthly Minimum Payment requirements ($1,000,000.00) described in subsection 1.3.2, above and further acknowledges that: (i) Chem Rock is relying on the full and timely performance of all of GFES’
obligations as set forth in this Agreement, including, but not limited to, those obligations described in subsections 1.1.1, 1.1.3, 1.3.1, and 1.3.2 above. 
  

	5.	LIMITATION OF LIABILITY 

 NOTWITHSTANDING THE FORM (CONTRACT, TORT, OR OTHERWISE) OF ANY LEGAL OR EQUITABLE ACTION OR CLAIM THAT MAY BE BROUGHT AGAINST CHEM ROCK, OR THE CAUSE OF SUCH ACTION OR CLAIM (NEGLIGENCE, GROSS
NEGLIGENCE, INTENTIONAL TORT, BREACH OF CONTRACT, OR OTHERWISE), CHEM ROCK SHALL NOT BE LIABLE TO GFES OR ANY OTHER PERSON FOR LOST PROFITS OR GOODWILL, OR FOR SPECIAL, 

 

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CONSEQUENTIAL, INDIRECT, INCIDENTAL, OR PUNITIVE DAMAGES OR ECONOMIC LOSS OF ANY KIND, WHETHER FORESEEABLE OR UNFORESEEABLE, EVEN IF CHEM ROCK HAS BEEN ADVISED OF THE POSSIBILITY OF ANY SUCH
DAMAGES AND NOTWITHSTANDING ANY DISCLOSURE OF THE NATURE OR VALUE OF THE PRODUCTS BY CHEM ROCK HEREUNDER OR ANY PARTICULAR USE THAT MAY BE MADE BY GFES OF SUCH PRODUCTS. GFES’ EXCLUSIVE REMEDY IN THE EVENT OF LOSS OF OR DAMAGE TO THE PRODUCTS
TO BE PROVIDED IN ACCORDANCE WITH THIS AGREEMENT SHALL BE THE REPLACEMENT OF SUCH PRODUCTS OR, AT CHEM ROCK’S OPTION, DAMAGES; PROVIDED, HOWEVER, IN NO EVENT SHALL CHEM ROCK BE LIABLE HEREUNDER FOR DAMAGES WHICH EXCEED, IN THE
AGGREGATE, THE PRICE ACTUALLY PAID BY GFES TO CHEM ROCK FOR THE PRODUCTS WHICH GAVE RISE TO SUCH DAMAGES. CHEM ROCK NEITHER ASSUMES NOR AUTHORIZES ANY PERSON TO ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE OR USE OF THE PRODUCTS
SOLD HEREUNDER. 
  

	6.	MISCELLANEOUS PROVISIONS 

 6.1 Changes. Chem Rock shall notify GFES in advance and in writing of all changes in raw materials or their source, formulation, manufacturing location, manufacturing methods or processes,
packaging, shelf life, or other changes to any Products delivered pursuant to this Agreement or any applicable Purchase Order, which could affect their quality or performance. Such changes must be agreed upon by GFES in writing. 

6.2 Modification of Specifications. GFES may request at any time changes in the specifications of any Products, and Chem Rock will
use its best efforts to comply with such modification. Any difference in purchase price resulting from such modification shall be paid by GFES and the applicable Purchase Order shall be amended in writing, accordingly. Chem Rock reserves its right,
in its discretion, to reject any modification request by GFES. 
 6.3 Order Cancellations and Product Returns. Order
cancellations and/or product returns will not be accepted by Chem Rock once the bill of lading has been issued in respect of the relevant Products unless first approved by Chem Rock in writing. In addition, GFES’ failure to notify Chem Rock of
a damage or defect in writing within thirty (30) days of receipt of the relevant bill of lading, in respect of Products transported thereunder shall constitute a waiver of all claims with respect to such Products, and in any event, the use of
the Products shall be deemed to constitute satisfactorily performance by Chem Rock and full acceptance by GFES. 
  

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 6.4 Amendment of Agreement. It is expressly understood and agreed by the parties that
any amendment, modification, waiver, or release of this Agreement or the obligations herein must be in a writing that shall specifically reference this Agreement, identify the amended, modified, waived, or released obligation, describe the nature of
the amendment, modification, waiver, or released obligation, and be signed by authorized representatives of both parties with actual authority to amend this Agreement. It is further expressly understood and agreed by the parties that no provision of
any Purchase Order, invoice, or other instrument used or issued by Chem Rock or GFES shall amend, modify, supersede, waive, or release any of the provisions of this Agreement. Moreover, no single waiver or multiple waivers shall be construed to
cause or constitute any other waiver whatsoever. 
 6.5 Laws and Regulations. Chem Rock represents and warrants that in
performing its obligations under this Agreement and the Purchase Order, it will comply with all applicable laws, rules, regulations, and ordinances. 
 6.6 Headings. The section headings are for convenience and reference only, and shall not in any way affect the meaning or interpretation of the provisions hereof. 

6.7 Notice. All notices to be given with respect to this Agreement and applicable Purchase Orders shall be given at the respective
addresses of the parties set forth in the introductory paragraph of this Agreement. Either party may change its notice address by providing the other party written notice of such change. Any notice shall be deemed received (a) five days after
such notice is properly addressed, stamped, and deposited with the United States Postal Service or (b) upon actual delivery by a reputable commercial courier (UPS, FedEx, DHL, etc.). 

6.8 Governing Law and Venue. 
 6.8.1 Texas Law Controls. The laws of the State of Texas shall govern any dispute between the parties arising from or in any way related to this Agreement (including the Terms and Conditions or any
Purchase Order or invoice stemming from this Agreement), without regard for Texas’ conflicts of law provisions. THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS CONTRACT SHALL NOT BE GOVERNED BY OR CONSTRUED IN ACCORDANCE WITH THE
PROVISIONS OF THE CONVENTION FOR THE INTERNATIONAL SALE OF GOODS. 
 6.8.2 Venue. Any dispute arising from or in any way
related to this Agreement (including the Terms and Conditions or any Purchase Order or invoice stemming from this Agreement) shall be brought in either the Judicial District Courts or United States District Court in Travis County, Texas, and both
parties waive any objections to the venue and/or jurisdiction of those Courts. 
  

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 6.9 Attorney Fees. In the event of a dispute between the parties arising from or in
any way related to this Agreement (including the Terms and Conditions or the Purchase Order, any supplement to same, or invoice stemming from this Agreement), the prevailing party shall be entitled to recover its reasonable attorneys’ fees,
expert fees, mediation/arbitration expenses, and court costs from the other party. 
 6.10 Reformation. In the event that
one or more of the provisions contained in this Agreement (including the Term and Conditions or any Purchase Order or invoice stemming from this Agreement) shall be held, for any reason, to be invalid, void, illegal or unenforceable in any respect,
such invalidity, voidness, illegality or unenforceability shall not affect the remaining provisions hereof, and this Agreement shall remain unaffected and shall be construed as if such invalid, void, illegal or unenforceable provision never had been
contained herein. 
 6.11 Terms of this Agreement. In the event of any dispute, conflict, and/or inconsistency between the
terms of this Agreement and the terms of the Purchase Order or the Terms and Conditions, the terms of this Agreement shall govern and be applied to the parties. 
 WHEREFORE, this Master Purchase Order Agreement is hereafter executed by each party through its duly authorized representative. 

 

							
	Green Field Energy Services, Inc.	  	Chem Rock Technologies, LLC
				
	By:	 	/s/ Enrique Fontova	  	By:	  	/s/ David Trahan
	Print:	 	Enrique Fontova	  		  	David Trahan
	Title:	 	President	  		  	Manager

  

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 Exhibit “A” 

Chem Rock Technologies, L.L.C. 
 General Terms and Conditions for Sale of Products and Services to Green Field Energy Services, Inc. 
  

	1.	GENERAL: These General Term and Conditions of Sale (the “Terms and Conditions”) shall be applicable to all sales contracts, offers, order
acknowledgements, invoices and deliveries by Chem Rock Technologies, L.L.C. (“Chem Rock”), a Texas limited liability company, to Green Field Energy Services, Inc. (“GFES”), a Delaware corporation, for the referenced
products (the “Products”) delivered in connection with that certain Master Purchase Agreement by and between Chem Rock and GFES to which these Terms and Conditions are attached as Exhibit “A” (the
“Contract”) and the Purchase Order. Capitalized terms not defined herein shall have the meanings ascribed to them in the Contract. No other agreements or general conditions shall be applicable or set aside these Terms and Conditions
expressly agreed to by Chem Rock in writing. References herein to “the Contract” relate to any sales contracts, purchase orders, offers, order acknowledgements, confirmations, invoices and deliveries (as applicable) to which these Terms
and Conditions apply. 

  

	2.	OTHER DEFINITIONS: 

“Contract Agreements” means the Contract, or the purchase order signed by GFES and accepted by Chem Rock in writing, for the
sale Products or Services, together with the Terms and Conditions, Chem Rock’s final quotation, the agreed scope(s) of work, and Chem Rock’s order acknowledgement. In the event of any conflict, the Terms and Conditions shall take
precedence over other documents included in the Contract. “Contract Price” means the agreed price in the Contract or otherwise quoted by Chem Rock and such price is subject to change at any time by Chem Rock giving notice to GFES.

 “Hazardous Material” means any toxic or hazardous substance, hazardous material, dangerous or hazardous waste,
dangerous good, radioactive material, petroleum or petroleum-derived products or by-products, or any other chemical, substance, material or emission, that is regulated, listed or controlled pursuant to any national, state, provincial, or local law,
statute, ordinance, directive, regulation or other legal requirement of the United States (“U.S.”) or the country of the Site. 
 “Insolvent / Bankrupt” means that a party is insolvent, makes an assignment for the benefit of its creditors, has a receiver or trustee appointed for it or any of its assets, or files or has
filed against it a proceeding under any bankruptcy, insolvency dissolution or liquidation laws. 
 “Products” means the
equipment, parts, materials, supplies, chemicals, services and other goods Chem Rock has agreed to supply to GFES under the Contract. 
 “Services” means the services Chem Rock has agreed to perform for GFES under the Contract. 
 “Site” means the premises where Products are used or Services performed, not including Chem Rock’s premises from which it performs Services. 

 

	3.	PRODUCT QUANTITY: Chem Rock will not be required to deliver a quantity of Product exceeding that specified in the Contract. If no monthly quantity is specified, Chem
Rock may limit the quantity to be supplied in any month to the lesser of the pro rata amount of the specified quantity or, after the initial ninety (90) days, the average of the monthly quantities shipped during the expired months of the
Contract. Unless otherwise expressly agreed by Chem Rock. 

  

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	4.	TITLE: Title to the Products sold hereunder and all risk of loss, delay or damage, pass to GFES on Chem Rock’s delivery to the common carrier at Chem Rock’s
plant, Chem Rock’s warehouse or Chem Rock’s supplier location. The quantity of all bulk rail and truck shipments will be determined in accordance with Chem Rock’s usual weighing or volume measurement practices, and Chem Rock’s
quantity determination will govern. GFES will promptly unload each shipment at its own risk and expense, including any demurrage or detention charges. 

  

	5.	PRICE AND PAYMENT TERMS. For each Product, the price is as specified for that Product in the Contract or otherwise quoted by Chem Rock and such price is subject to
change at any time by Chem Rock giving reasonable advanced written notice to GFES. Chem Rock shall have the right to use sub-contractors to fulfill its obligations. Any tax (other than income), duty or other governmental charge now or hereafter
imposed on the Product or on any raw material used in manufacturing the Product (or on Chem Rock, or required to be paid or collected by Chem Rock by reason of the manufacture, transportation, sale or use of such Product or raw material) will be
paid by GFES in addition to the price. Funds are due in Chem Rock’s bank or financial institution within forty-five (45) days from the invoice date or in accordance with the terms as stated on Chem Rock’s invoice, as long as such
terms do not require payment in less than 45 days, unless otherwise expressly agreed. Any invoice not paid within the foregoing terms shall be subject to a late fee of computed at the rate of 1.5% per month on the overdue balance, or the
maximum rate permitted by law, whichever is less, from the date due until the date paid. 

  

	6.	GFES’ DEFAULT AND CREDIT. If, in Chem Rock’s judgment, GFES’s credit shall become impaired at any time, or GFES’s credit is in default under any
term or condition of the Contract or any other contract with Chem Rock, Chem Rock shall have the right in addition to any and all other remedies, to decline to make deliveries hereunder except for cash until such time as such credit has been
established or such default has been cured to Chem Rock’s satisfaction. 

  

	7.	FORCE MAJEURE. Neither party shall be liable in any respect for failure to perform hereunder (except for failure to pay amounts owing hereunder) if hindered or
prevented, directly or indirectly for a reason outside its reasonable control including, without limitation, war, national emergency, terrorism, riot, inadequate transportation facilities, inability to secure materials, supplies, fuel or power,
shortage or non-availability of raw materials, plant breakdown, fire, flood, windstorm, explosion, accident or other act of God, strike, lockout or other labor dispute, order or act of any government, whether foreign, national or local, whether
valid or invalid, or any other cause of like or different kind (a “Force Majeure Event”). If either party is unable to perform its obligations hereunder due to a Force Majeure Event, or if either party considers it likely that it
may become so unable, then that party shall as soon as reasonably practicably, notify the other of the estimated extent and duration of such inability. Any quantity of Product so affected shall be deducted from the total quantity purchased by GFES.
Chem Rock, during any period of shortage due to a Force Majeure Event, may allocate its available supply of Product among its internal requirements and its customers on whatever basis Chem Rock may deem fair and practical. Chem Rock shall not be
required to procure Product from third parties to satisfy its obligations to GFES hereunder during any period of shortage due to a Force Majeure Event. 

 
  

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	8.	SAFETY AND HEALTH COMMUNICATIONS. GFES acknowledges that it has consulted Chem Rock’s documents, including information set forth on Chem Rock’s Material
Safety Data Sheets regarding the Products (“MSDS”) and other technical bulletins and publications containing safety, health, handling and environmental hazard information concerning Products and their properties, that it has read
and it understands such information, and that it agrees to incorporate such information into its personnel safety programs. GFES shall fully and adequately inform its employees, contractors, agents and other third parties who may become exposed to
Products after delivery to GFES hereunder, of any hazards associated with Products, and of the proper storage, handling and use procedures for Products, whether disclosed in such documents or in additional documents which are transmitted to GFES
during the term of the Contract. GFES acknowledges its independent obligation to fully and adequately incorporate available information, such as that supplied by Chem Rock, into its product safety communications and to provide to all of its
employees, contractors, agents and customers copies of such hazard communication documents. If Product is further processed, mixed or incorporated into another product, GFES shall likewise disseminate appropriate health and safety information to all
persons GFES foresees may be exposed. 

  

	9.	INDEMNITY: GFES shall indemnify, defend and forever hold Chem Rock and its directors, officers, employees, agents, suppliers, parents, affiliates, subsidiaries,
successors and assigns harmless from any and all fines, penalties, suits, actions, claims, liabilities, judgments, costs, and expenses (including attorneys’ fees and expenses) resulting or arising from: (a) GFES’ negligent actions or
omissions hereunder, or breach of any of the terms of the Contract; (b) GFES’ use, sale, handling, storage, or disposal of the Products or any product or waste derived therefrom; (c) GFES’ discharge or release of the Products or
any product or waste derived therefrom into water, onto land or into the air; (d) GFES’ exposing any person (including GFES’ employees) to the Products or any product or waste derived therefrom, including failure to warn of such
exposure; or (e) the transportation of the Products to GFES after tender of the Products by Chem Rock to the carrier at Chem Rock’s shipping point. The foregoing indemnification shall apply, but shall not be limited to, injury to person
(including death) or damage or harm to property or the environment. GFES shall not be obligated to indemnify Chem Rock for any fine, penalty, suit, action, claim, liability, judgment, cost, or expense to the extent attributable to the failure of the
Product to meet specifications. 

  

	10.	ACCEPTANCE, ENTIRETY AND RELEASE. Chem Rock’s acceptance of GFES’ order or proposal is expressly conditional on GFES’ assent to the terms of the Contract
and these Terms and Conditions and Chem Rock rejects any terms of GFES’ order or proposal, which differ from or are in addition to them. GFES’ assent to the terms of the Contract and these Terms and Conditions will be conclusively presumed
by GFES’ acceptance of Product delivery. The Contract, as of its beginning date, contains the complete and exclusive agreement of Chem Rock and GFES concerning the Product, merges and supersedes all prior understandings and representations
(oral or written) between the Parties concerning the Product and, except for any indebtedness or indemnity obligation of GFES to Chem Rock, each releases the other from all claims arising in connection with any such prior contract.

  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

  
 12 

	11.	INTELLECTUAL PROPERTY. Chem Rock shall hold all intellectual and industrial property rights in all chemical formulations, chemical blends or related materials developed
or provided under the agreement unless otherwise agreed in writing. GFES shall only have the rights to use and authority insofar as same as have been expressly conferred. Otherwise, it shall not analyze directly or indirectly cause Chem Rock
product(s) to be analyzed for the purpose of reverse engineering; it shall not reproduce, alter, adjust or manufacture Chem Rock product(s) or other materials. Any specifications, drawings, plans, notes, instructions, engineering notes, or technical
data of Chem Rock furnished to GFES shall be deemed to be incorporated herein by reference the same as is if fully set forth. Chem Rock shall at all times retain title to all such documents and GFES shall not disclose such to any party other than
Chem Rock or a party duly authorized by Chem Rock. Upon Chem Rock’s request, GFES shall promptly return to Chem Rock all such documents and copies thereof. 

 

	12.	U.S. EXPORT COMPLIANCE. GFES warrants that it will comply with all U.S. laws, regulations, rules and orders regarding export control. 

 

	13.	PARTIAL INVALIDITY. If one or more provisions hereof are or become invalid, the validity of the remainder of the provisions shall not be affected thereby. In such cases
Chem Rock and GFES shall replace the invalid provisions by a valid provision that approximates the economic intent of the invalid provision as closely as possible. 

 

	14.	MISCELLANEOUS. If any departures from these Terms and Conditions are condoned by Chem Rock at any time (whether or not by implied consent), this shall not preclude Chem
Rock from its right to enforce the provisions hereof in full. Chem Rock expressly rejects the applicability of any of GFES’ general terms and conditions of purchase. 

  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

  
 13 

 Exhibit “B” 

 

	1.	Gel Crosslinker 

  

	2.	Gel Breakers 

  

	3.	Scale Inhibitors 

  

	4.	Surfactants 

  

	5.	Buffers : Acid 

  

	6.	Buffers : Base 

  

	7.	Corrosion Inhibitors 

  

	8.	Clay Control Additives 

  

	9.	Iron Control Agents 

  

	10.	Gel Stabilizers 

  

	11.	Foaming Agents 

  

	12.	Friction Reducers 

  

	13.	Hydrochloric Acid 

  

	14.	Acid Corrosion Inhibitors 

  

	15.	Biocides 

  

	16.	Non Emulsifiers 

  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

  
 14 

 Exhibit “C” 

Shell Price List 
 (Price
List) 
  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

  
 15 

 CHEM ROCK TECHNOLOGIES : PRICE LIST 

 

							
	REMIT TO ADDRESS:	  	
	 PO Box 81277

Lafayette, LA 70598
 337.291.2778

866.456.3696
	  		  	Date:	  	May 3, 2013
	  		  		  	
	  		  	Sales Rep.	  	House
	  		  	Sales Terms	  	Net 45 Days
		  		  	FOB : Chem Rock Technologies
	Company:	  	Green Field Energy Services, L.L.C.	  	Shipping / Stocking Location
	Location:	  	4023 Ambassador Caffery Pkwy., Suite 400, Lafayette, LA 70503	  	Adjustments Apply
	Contact:	  	Virgil Vincent, Jerry Broussard	  	

  

													
	 Product
	 	Unit	 	Container	 	Units /
Container	 	 Description
	 	Unit Price	 	Container Price
	 Acid, Formic 90%
	 	Gal	 	Tote	 	330	 	Formic Acid 90% (min) : Intensifier	 	[***]	 	[***]
	 Acid, Hydrochloric
	 	Pricing for all grades of Hydrochloric Acid available upon request.
	 BioControl 262
	 	Gal	 	Tote	 	275	 	Biocide : Glut Quat Combo (12:3)	 	[***]	 	[***]
	 BioControl 265
	 	Gal	 	Tote	 	275	 	Biocide : Glut Quat Combo (25:12)	 	[***]	 	[***]
	 BioControl 265W
	 	Gal	 	Tote	 	275	 	Biocide : Glut Quat Combo (25:12)(Winterized)	 	[***]	 	[***]
	 Buffer 1430 Base
	 	Gal	 	Tote	 	330	 	Buffer : Potassium hydroxide 25% aq	 	[***]	 	[***]
	 Buffer 1432 Base
	 	Gal	 	Tote	 	330	 	Buffer : Potassium carbonate 47% aq	 	[***]	 	[***]
	 Buffer 1432 Base
	 	Gal	 	Bulk	 	Bulk	 	Buffer : Potassium carbonate 47% aq	 	[***]	 	[***]
	 Buffer 1433 Base
	 	Gal	 	Tote	 	330	 	Buffer : Potassium hydroxide / Potassium carbonate	 	[***]	 	[***]
	 Buffer 1435 Base
	 	Gal	 	Tote	 	330	 	Buffer : Sodium hydroxide 50% aq	 	[***]	 	[***]
	 Buffer 1480 Acid
	 	Gal	 	Tote	 	330	 	Buffer : Acetic Acid 80% aq	 	[***]	 	[***]
	 Buffer 1485 Acid
	 	Gal	 	Tote	 	330	 	Buffer : Ammonium acetate / acetic acid combo	 	[***]	 	[***]
	 CC 1502
	 	Gal	 	Tote	 	330	 	Clay Control : Permanent Clay Stabilizer (Polymer)	 	[***]	 	[***]
	 CC 1503
	 	Gal	 	Tote	 	330	 	Clay Control : KCl Substitute	 	[***]	 	[***]
	 CC 1503
	 	Gal	 	Bulk	 	Bulk	 	Clay Control : KCl Substitute	 	[***]	 	[***]
	 CC 1505
	 	Gal	 	Tote	 	330	 	Clay Control : KCl Substitute (choline)	 	[***]	 	[***]
	 CC 1505
	 	Gal	 	Bulk	 	Bulk	 	Clay Control : KCl Substitute (choline)	 	[***]	 	[***]

  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

  

 CHEM ROCK TECHNOLOGIES : PRICE LIST 
  

													
	 Product
	 	Unit	 	Container	 	Units /
Container	 	 Description
	 	Unit Price	 	Container Price
	 CI 360
	 	Gal	 	Drum	 	53	 	Acid Corrosion Inhibitor (<300°F)	 	[***]	 	[***]
	 CI 360
	 	Gal	 	Tote	 	330	 	Acid Corrosion Inhibitor (<300°F)	 	[***]	 	[***]
	 CI 386
	 	Gal	 	Tote	 	330	 	Acid Corrosion Inhibitor (< 225°F)	 	[***]	 	[***]
	 CI 388
	 	Gal	 	Tote	 	330	 	Acid Corrosion Inhibitor (<250°F)	 	[***]	 	[***]
	 CL 1036L10
	 	Gal	 	Tote	 	330	 	Crosslinker : 10% Boron	 	[***]	 	[***]
	 CL 1036L2
	 	Gal	 	Tote	 	330	 	Crosslinker : 2% Boron	 	[***]	 	[***]
	 CL 1036L5
	 	Gal	 	Tote	 	330	 	Crosslinker : 5% Boron	 	[***]	 	[***]
	 CL 1036L7
	 	Gal	 	Tote	 	330	 	Crosslinker : 7% Boron	 	[***]	 	[***]
	 CL 1040L
	 	Gal	 	Tote	 	330	 	Crosslinker : HT Delayed Boron Slurry	 	[***]	 	[***]
	 F 700
	 	Gal	 	Tote	 	330	 	Foaming Agent : Well Flow Aid	 	[***]	 	[***]
	 F 710
	 	Gal	 	Tote	 	330	 	Acid Foaming Agent	 	[***]	 	[***]
	 FR 1206
	 	Gal	 	Tote	 	330	 	Friction Reducer : Anionic	 	[***]	 	[***]
	 FR 1207
	 	Gal	 	Tote	 	275	 	Friction Reducer : Anionic	 	[***]	 	[***]
	 FR 1208
	 	Gal	 	Tote	 	330	 	Anionic Friction reducer for fresh to Moderate TDS water	 	[***]	 	[***]
	 FR 1214
	 	Gal	 	Tote	 	330	 	Anionic Friction reducer for fresh to Moderate TDS water	 	[***]	 	[***]
	 GB 1101
	 	Lb	 	Bag	 	55	 	Oxidizing Breaker : Ammonium Persulfate powder	 	[***]	 	[***]
	 GB 1102 Activator
	 	Gal	 	Drum	 	55	 	Breaker Activator (Use With GB 1102L)	 	[***]	 	[***]
	 GB Activator (Note 1)
	 	Gal	 	Pail	 	5	 	Breaker Activator (Use With GB 1102L)	 	[***]	 	[***]
	 GB 1102L
	 	Gal	 	Tote	 	330	 	Breaker : Oxidizer 10% Chlorite	 	[***]	 	[***]
	 GB 1103
	 	Lb	 	Bag	 	55	 	Oxidizing Breaker : Sodium Persulfate Powder	 	[***]	 	[***]
	 GB 1107
	 	Lb	 	Special *	 	Special *	 	Encapsulated (Ammonium Persulfate) (120-150°F)	 	[***]	 	[***]
	 GB 1108
	 	Lb	 	Special *	 	Special *	 	Encapsulated (Ammonium Persulfate) (140-225°F)	 	[***]	 	[***]
	 IC 114
	 	Gal	 	Tote	 	330	 	Iron Control Agent	 	[***]	 	[***]
	 IC 116
	 	Gal	 	Tote	 	330	 	Iron Control Agent	 	[***]	 	[***]
	 MS 1780
	 	Gal	 	Tote	 	330	 	Micellar Solvent	 	[***]	 	[***]

  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

 CHEM ROCK TECHNOLOGIES : PRICE LIST 
  

													
	 Product
	 	Unit	 	Container	 	Units /
Container	 	 Description
	 	Unit Price	 	Container Price
	 NE 1383
	 	Gal	 	Tote	 	330	 	Non Emulsifier (Oil Soluble)	 	[***]	 	[***]
	 NE 1385
	 	Gal	 	Tote	 	330	 	Non Emulsifier (Water Soluble)	 	[***]	 	[***]
	 NE 1386
	 	Gal	 	Tote	 	330	 	Non Emulsifier (Water Soluble) (Green Formula)	 	[***]	 	[***]
	 NE 1389
	 	Gal	 	Tote	 	330	 	Non Emulsifier (microemulsion)	 	[***]	 	[***]
	 OS 530
	 	Gal	 	Tote	 	330	 	Gel Stabilizer : Sodium thiosulfate 30% Aq	 	[***]	 	[***]
	 OS 530 (Note 2)
	 	Gal	 	Bulk	 	Bulk	 	Gel Stabilizer : Sodium thiosulfate 30% Aq	 	[***]	 	[***]
	 SC 460
	 	Gal	 	Tote	 	330	 	Scale Inhibitor : Phosphonate	 	[***]	 	[***]
	 SC 940
	 	Gal	 	Tote	 	330	 	Multi component, multi functional scale inhibitor	 	[***]	 	[***]
	 Soda Ash
	 	Bag	 	Bag	 	50	 	Soda Ash : Sodium carbonate : Alkaline Buffer	 	[***]	 	[***]
	 Soda Ash
	 	Pallet	 	Bag	 	50	 	Soda Ash : Sodium carbonate : Alkaline Buffer	 	[***]	 	[***]
	 Surf 601
	 	Gal	 	Tote	 	330	 	Surfactant : Linear Alcohol Ethoxylate	 	[***]	 	[***]
	 Surf 601
	 	Gal	 	Bulk	 	Bulk	 	Surfactant : Linear Alcohol Ethoxylate	 	[***]	 	[***]
	 Surf 602
	 	Gal	 	Tote	 	330	 	Acid Anti Sludge Agent	 	[***]	 	[***]
	 Surf 610
	 	Gal	 	Tote	 	330	 	Surfactant : Microemulsion Flow Aid	 	[***]	 	[***]
	 Surf 660
	 	Gal	 	Tote	 	330	 	Surfactant : Microemulsion Flow Aid	 	[***]	 	[***]
	 Surf 660W
	 	Gal	 	Tote	 	330	 	Surfactant : Microemulsion Flow Aid(Winterized)	 	[***]	 	[***]
	 Surf 664
	 	Gal	 	Tote	 	330	 	Wetting Agent / Flow Aid	 	[***]	 	[***]
	 Surf 665
	 	Gal	 	Tote	 	330	 	Wetting Agent / Flow Aid (Green Formula)	 	[***]	 	[***]

 Quotations & Special Orders: 
 Chem Rock offers a wide range of chemical products for well fracture fluid treatment and coiled tubing operations. This price list is a partial listing of those products, please contact a Chem Rock
representative for product applications not listed within this price list. Customer Services Department (1-866-456-3696). We welcome the opportunity to address your specific chemical requirements and will provide quotes on bulk quantities or
specially packaged unit sizes. 
  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

 CHEM ROCK TECHNOLOGIES : PRICE LIST 
  

 Revision Notes: 
 Note 1: Name revision. GB 1102 Activator is being revised to GB Activator at customer’s request. Supplied in 5-gallon pails only. 
 Note 2: Bulk Shipments require minimum 48-hour notification in order to properly arrange competitive third party bulk chemical transport. 
 Service Fees: 
 1. (1-Way) and (2-Way) chemical transport totes are provided upon
request, pricing provided at time of request. 
 2. All chemical residue remaining in (1-Way) or (2-Way) Totes will be disposed in full
compliance with local, state and federal guidelines with the costs for disposal and services related to handling and shipping billed to customer. 
 Regional Stock Point Price Differential: (in bound freight and handling) 
 Cotulla, Texas : $[***]per gallon. 
 Lafayette, Louisiana : $[***]per
gallon. 
 Midland, Texas : $[***]per gallon 
 Barnesville, Ohio : $[***]per gallon 
 Williston, North Dakota : $[***]per
gallon 
 General Conditions of Sale 
 GENERAL: These General Conditions of Sale shall be applicable to all sales contracts, offers, order acknowledgements, invoices and deliveries by Chem Rock Technologies, L.L.C. (“Seller”)
to the buyer named on the face hereof or named in the purchase order referenced hereby (“Buyer”), for the referenced products (the “Products”). No other agreements or general conditions shall be applicable or set aside these
General Conditions of Sale unless expressly agreed to by the Seller in writing. References herein to “the Contract” relate to any sales contracts, purchase orders, offers, order acknowledgements, confirmations, invoices and deliveries (as
applicable) to which these General Conditions of Sale apply. 
 PRODUCT QUANTITY: Seller will not be required to deliver a quantity of
Product exceeding that specified in the Contract. If no monthly quantity is specified, Seller may limit the quantity to be supplied in any month to the lesser of the pro rata amount of the specified quantity or, after the initial ninety
(90) days, the average of the monthly quantities shipped during the expired months of the Contract. Unless otherwise expressly agreed by Seller. 
 TITLE: Title to the Products sold hereunder and all risk of loss, delay or damage, pass to Buyer on Seller’s delivery to the common carrier at Seller’s plant or warehouse. The quantity of
all bulk rail and truck shipments will be determined in accordance with Seller’s usual weighing practices, and Seller’s quantity determination will govern. Buyer will promptly unload each shipment at its own risk and expense, including any
demurrage or detention charges. 
  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

 CHEM ROCK TECHNOLOGIES : PRICE LIST 
  

 PRICE AND PAYMENT TERMS. For each Product, the price is as specified for that Product in the
Contract or otherwise quoted by Seller and such price is subject to change at any time by Seller. Prices in effect at time of Shipment shall apply. Any tax (other than income), duty or other governmental charge now or hereafter imposed on the
Product or on any raw material used in manufacturing the Product (or on Seller, or required to be paid or collected by Seller by reason of the manufacture, transportation, sale or use of such Product or raw material) will be paid by the Buyer in
addition to the price. Funds are due in Seller’s bank or financial institution in accordance with the terms of Seller’s invoice. Any invoice not paid within the foregoing terms shall be subject to a late fee of eighteen percent
(18%) per annum from the date due until the date paid. 
 RETURNS: Returned goods will not be accepted without prior permission and
instruction. If you need to return material, please contact our Customer Services Department to discuss obtaining a return materials authorization. No return goods or claims will be allowed beyond 60-days after the invoice date. We cannot accept
returns on special orders at any time. If a return is authorized, the greater of $250 or 25% of the invoice total will be assessed as a restocking charge unless otherwise waived. 
 BUYER’S DEFAULT AND CREDIT. If, in Seller’s judgment, Buyer’s credit shall become impaired at any time, or Buyer’s credit is in default under any term or condition of any
Contract with Seller, Seller shall have the right in addition to any and all other remedies, to decline to make deliveries hereunder except for cash until such time as such credit has been established or such default has been cured to Seller’s
satisfaction. 
 FORCE MAJEURE. Neither party shall be liable in any respect for failure to perform hereunder (except for failure to pay
amounts owing hereunder) if hindered or prevented, directly or indirectly for a reason outside its reasonable control including, without limitation, war, national emergency, terrorism, riot, inadequate transportation facilities, inability to secure
materials, supplies, fuel or power, shortage or non- availability of raw materials, plant breakdown, fire, flood, windstorm, explosion, accident or other act of God, strike, lockout or other labor dispute, order or act of any government, whether
foreign, national or local, whether valid or invalid, or any other cause of like or different kind (a “Force Majeure Event”). If either party is unable to perform its obligations hereunder due to a Force Majeure Event, or if either party
considers it likely that it may become so unable, then that party shall as soon as reasonably practicably, notify the other of the estimated extent and duration of such inability. Any quantity of Product so affected shall be deducted from the total
quantity purchased by Buyer. Seller, during any period of shortage due to a Force Majeure Event, may allocate its available supply of Product among its internal requirements and its customers on whatever basis Seller may deem fair and practical.
Seller shall not be required to procure Product from third parties to satisfy its obligations to Buyer hereunder during any period of shortage due to a Force Majeure Event. 
 WARRANTY. Seller warrants only that each Product will meet specifications designated as such in the Contract but reserves the right to change the specifications or properties of any Product at any
time on at least thirty (30) days’ notice. SELLER MAKES NO OTHER WARRANTIES REGARDING THE PRODUCT, WHETHER OF FITNESS FOR A PARTICULAR PURPOSE, MERCHANTABILITY, OR OTHERWISE, AND NONE WILL BE IMPLIED. FURTHER, SELLER MAKES NO
REPRESENTATIONS AND ASSUMES NO RESPONSIBILITY WHATSOEVER WITH RESPECT TO FREEDOM FROM INFRINGEMENT OF ANY PATENT AND/OR COPYRIGHT RESULTING FROM BUYER’S USE OF PRODUCT OR SELLER’S INFORMATION. 

CLAIMS. SELLER SHALL NOT BE LIABLE FOR LOSS OF PROFITS, LOSS OF PRODUCTION, INDIRECT, OR OTHER SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES,
REGARDLESS OF NEGLIGENCE. SELLER’S LIABILITY AND BUYER’S EXCLUSIVE REMEDY FOR ANY CAUSE OF ACTION ARISING OUT OF THE SALE, USE, OR NON-DELIVERY OF THE PRODUCTS OR UNDER ANY WARRANTY, IS EXPRESSLY LIMITED AT BUYER’S OPTION TO
REPLACEMENT OF NON-CONFORMING PRODUCT, F.O.B. SELLER’S SHIPPING POINT, OR PAYMENT NOT TO EXCEED THE PURCHASE PRICE OF THE PRODUCT FOR WHICH DAMAGES ARE CLAIMED (PLUS TRANSPORTATION COSTS, IF ANY, PAID BY BUYER WITH RESPECT THERETO).
Buyer’s failure to give notice of any claim within thirty (30) days from the date of delivery shall constitute a waiver by Buyer of all claims with respect thereto. Use or disposition of any portion of the Products by Buyer shall
constitute a waiver of all claims with respect to such portion. Buyer shall not be entitled to deduct from the price invoiced to it the amount of any claim asserted against Seller without Seller’s written consent. 

 

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

 CHEM ROCK TECHNOLOGIES : PRICE LIST 
  

 GOVERNING LAW. This Contract shall be governed by, and construed in accordance with, the laws of
the State of Texas, without regard to the conflicts of laws provisions thereof. THE RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS CONTRACT SHALL NOT BE GOVERNED BY OR CONSTRUED IN ACCORDANCE WITH THE PROVISIONS OF THE CONVENTION FOR THE
INTERNATIONAL SALE OF GOODS. 
 INDEMNITY: Buyer shall indemnify, defend and forever hold Seller and its directors, officers, employees,
agents, suppliers, parents, affiliates, subsidiaries, successors and assigns harmless from any and all fines, penalties, suits, actions, claims, liabilities, judgments, costs, and expenses (including attorneys’ fees and expenses) resulting or
arising from: (a) Buyer’s negligent actions or omissions hereunder, or breach of any of the terms of this Contract; (b) Buyer’s use, sale, handling, storage, or disposal of the Products or any product or waste derived therefrom;
(c) Buyer’s discharge or release of the Products or any product or waste derived therefrom into water, onto land or into the air; (d) Buyer’s exposing any person (including Buyer’s employees) to the Products or any product
or waste derived therefrom, including failure to warn of such exposure; or (e) the transportation of the Products to Buyer after tender of the Products by Seller to the carrier at Seller’s shipping point. The foregoing indemnification
shall apply, but shall not be limited to, injury to person (including death) or damage or harm to property or the environment. Buyer shall not be obligated to indemnify Seller for any fine, penalty, suit, action, claim, liability, judgment, cost, or
expense to the extent attributable to the failure of the Product to meet specifications. 
 ASSIGNABILITY. This Contract shall be binding
upon and inure to the benefit of the respective successors and assigns of the parties hereto, but it shall not be transferred or assigned by either party without the prior written consent of the other party, which consent shall not be unreasonably
withheld; provided, that Seller shall have the right to assign this Contract without Buyer’s consent to an affiliate of Seller, or to a purchaser or other successor to Seller’s assets or undertaking involved in the manufacture of Products.

 ACCEPTANCE, ENTIRETY AND RELEASE. Seller’s acceptance of Buyer’s order or proposal is expressly conditional on Buyer’s
assent to the terms of the Contract and Seller rejects any terms of Buyer’s order or proposal which differ from or are in addition to them. Buyer’s assent to the terms of the Contract will be conclusively presumed by Buyer’s
acceptance of Product delivery. This Contract, as of its beginning date, contains the complete and exclusive agreement of Seller and Buyer concerning the Product, merges and supersedes all prior understandings and representations (oral or written)
between the Parties concerning the Product and, except for any indebtedness or indemnity obligation of Buyer to Seller, each releases the other from all claims arising in connection with any such prior contract. 

U.S. EXPORT COMPLIANCE. Buyer warrants that it will comply with all U.S. laws, regulations, rules and orders regarding export control. 

MATERIAL SAFETY DATA SHEETS. Material safety data sheets (MSDS) are delivered with each shipment and mailed to the attention of HSE Coordinator
following the first time the product is shipped. It is the responsibility of the Buyer to assess the hazards of the product prior to handling or using the material. Chem Rock Technologies, L.L.C.’s product labels also contain hazard, safety,
storage and handling information. The absence of warnings or other hazard data must not be interpreted as indicating that the product is non-hazardous or that it lacks risk in exposure or handling. 

 

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions. 

 CHEM ROCK TECHNOLOGIES : PRICE LIST 
  

 SAFETY AND HEALTH COMMUNICATIONS. Buyer acknowledges that it has consulted Seller’s
documents, including information set forth on Seller’s Material Safety Data Sheets regarding the Products (“MSDS”) and other technical bulletins and publications containing safety, health, handling and environmental hazard information
concerning Products and their properties, that it has read and it understands such information, and that it agrees to incorporate such information into its personnel safety programs. Buyer shall fully and adequately inform its employees,
contractors, agents and other third parties who may become exposed to Products after delivery to Buyer hereunder, of any hazards associated with Products, and of the proper storage, handling and use procedures for Products, whether disclosed in such
documents or in additional documents which are transmitted to Buyer during the term of this Contract. Buyer acknowledges its independent obligation to fully and adequately incorporate available information, such as that supplied by Seller, into its
product safety communications and to provide to all of its employees, contractors, agents and customers copies of such hazard communication documents. If Product is further processed, mixed or incorporated into another product, Buyer shall likewise
disseminate appropriate health and safety information to all persons Buyer foresees may be exposed. 
  

	***	Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with
respect to the omitted portions.EX-10.15

 Exhibit 10.15 
 CERTAIN MATERIAL (INDICATED BY AN ASTERISK) HAS BEEN OMITTED FROM THIS DOCUMENT PURSUANT TO A REQUEST FOR CONFIDENTIAL TREATMENT. THE OMITTED MATERIAL HAS BEEN FILED SEPARATELY WITH THE SECURITIES AND
EXCHANGE COMMISSION. 
 PLANT CONSTRUCTION REIMBURSEMENT AND 

SALES AGREEMENT BETWEEN 
 GREAT NORTHERN SAND LLC 
 AND 

GREEN FIELD ENERGY SERVICES, L.L.C. 
 This Agreement is entered into as of October 28, 2011 (“Effective Date”) by and between Green Field Energy Services, L.L.C. (“Buyer”) and Great Northern Sand LLC
(“Seller”). 
  

	1.	Seller will sell to Buyer, and Buyer will purchase from Seller, northern white grade 20/40 frac sand, northern white grade 30/50 and northern white grade 40/70 sand
(the “Material”), in the volumes, at the prices, and on the delivery terms set forth below. The Material will conform to Seller’s standard specifications, which conform to API Specification 56, or such other specifications as may
be established by written agreement of the parties. As used herein, “short ton” and “ton” are both defined to mean a total weight of 2,000 lbs. 

 

											
	Buyer Locations	  	Seller Plant	  	“Yearly Volume” of Material
each “Contract Year”	  	Packaging	  	 Price Per
 Short Ton
	  	 Delivery
 Terms

	 Buyer’s
 U.S.
 facilities
	  	 Plant located
 on Union
 Pacific

Connector
 Railroad
in
 Wisconsin
	  	 [***] short tons of northern
white sand 20/40

 
 [***] short tons of northern
white
sand 30/50
  

[***] short tons of northern
white sand 40/70
	  	bulk	  	 See
 attached
 Exhibit B
	  	 F.O.B.
 Seller
 Plant

 

	2.	(a) Seller will use commercially reasonable efforts to construct a new plant (“New Plant”) located in Wisconsin and have it commissioned and operating as
intended by Seller, all as determined by Seller, on or before July 1, 2012 

 (b) For purposes of this
Agreement, the term “Contract Year” shall mean the period of twelve consecutive calendar months beginning on July 1, 2012, and each of the three (3) successive periods of twelve calendar months occurring immediately thereafter
ending June 30, 2016. 
 ***  Certain information on this page has been omitted and filed separately with the Securities and
Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. 

 (c) Subject to subsection 2(e) below, during each Contract Year, Buyer will purchase
from Seller, and Seller will sell to Buyer, an amount of Material equal to the Yearly Volume as set forth above. Buyer will order Material hereunder from Seller in generally even monthly proportions. Subject to the availability of sufficient
railcars, shipments of Material purchased and sold hereunder will be scheduled in reasonably equal monthly proportions. Provided that Buyer orders Material from Seller in generally even monthly proportions, the Yearly Volume shall be reduced on a
pro rata basis for the subject Contract Year to the extent that Seller is unable to provide an uninterrupted supply of Material due to the unavailability of sufficient railcars. 

(d) In the event that the date the New Plant is commissioned and operating as intended by Seller, all as determined by Seller, occurs
after July 1, 2012, then (i) the term of this Agreement during which Buyer is required to purchase from Seller, and Seller required to sell to Buyer, Material shall be shortened by one (1) calendar month for each calendar month, or
each part of an incomplete calendar month exceeding fifteen (15) days, occurring between July 1, 2012 and the date the New Plant is commissioned and operating as intended by Seller; and (ii) the Yearly Volume shall be reduced on a pro
rata basis with respect to any affected Contract Year for the purpose of determining the liquidated damages described in Section 4 below 
  

	3.	An advance payment (“Advance Payment”) of [***] per ton for each ton produced under this Agreement ([***] total) shall be paid on the following schedule:

 (a) 25% ($3,750,000) on or before November 15, 2011 

(b) 25% ($3,750,000) on February 1, 2011 

(c) 25% ($3,750,000) on April 1, 2012 
 (d) 25% ($3,750,000) on commissioning and operations of the Plant and shipping rail car to Buyer, or if Buyer does not request shipment of product, Seller’s demonstrated ability to ship a rail car to
Buyer. 
 For purposes of illustration, if the yearly commitment was for [***] tons per year, then the total commitment
under the Agreement would be for [***] tons total. The total Advance Payment for this scenario would be [***] and each of these [***] payments would be [***]. The total Advance Payment would be rebated at a credited rate of [***] per ton against the
price per ton in effect at the time for the first 899,820 tons of Material actually ordered, shipped, and invoiced to the Buyer. 
  

	4.	(a) In the event that Buyer fails to purchase the Yearly Volume of Material from Seller during any Contract Year, Buyer shall either: 

 

	 	(i)	Pay to Seller within thirty days of the end of such Contract Year, as liquidated damages (“Liquidated Damages”), an amount equal to [***] multiplied by the
amount by which the Yearly Volume exceeds the short tons of such Material that Buyer actually purchased from Seller hereunder during that Contract Year (“Shortfall Volume”); or 

***  Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment
has been requested with respect to the omitted portions. 

  
 2 

	 	(ii)	Inform Seller that Buyer wishes to increase the Yearly Volume commitment for the following year by an amount no greater than ten percent (10%) of the Yearly Volume
(maximum “Rollover Volume” equals Yearly Volume times 10%) and Buyer shall pay to Seller within thirty days of the end of such subsequent Contract Year, as Liquidated Damages, an amount equal to [***]/ton multiplied by the amount in short
tons by which the Shortfall Volume exceeds the Rollover Volume. For purposes of illustration, if Buyer were to have an Annual Volume of 300,000 tons, and did not purchase 45,000 tons of the Annual Volume in a Contract Year, then the
Rollover Volume would be 30,000 tons, making the subsequent Contract Year Annual Volume equal to 330,000 tons, and Buyer would owe Seller liquidated damages on 15,000 tons (15,000 times [***] per ton equals [***]).

 (b) In either case of choice above of (i) or (ii) above of this section 4(a), Buyer will have
the opportunity to recover the Liquidated Damages paid by increasing the total volume of Material under this Agreement by the same volume as the Liquidated Damages is calculated on (“Extension Volume”). This increased volume will have the
effect of extending the termination date will by a number of days equal to the Extension Volume firstly being divided by the Yearly Volume and then secondly multiplying that result by 365 and then thirdly rounding the answer upward to the next whole
day. For purposes of illustration, if the Extension Volume was 30,000 tons and the Yearly Volume was 300,000 tons, the termination date would be extended by the calculation (30,000/300,000)*365 = 36.5, which is then rounded upward to
37 days. 
 Subject to (iii) below, when the total volume of Material under this Agreement is increased by an amount
equal to the Extension Volume, the total Liquidated Damages will be credited back to Buyer by making a credit of [***] per ton against the price per ton for the Material in effect at that time until these cumulative credits have rebated the
Liquidated Damages in full. 
  

	 	(iii)	Following payment of Liquidated Damages, the credit for recovery of the Liquidated Damages actually paid will begin when additional Material is subsequently and
actually ordered, shipped and invoiced to Buyer; except that, if the Advance Payment has not yet been fully rebated, the credit for recovery of the Liquidated Damages actually paid will begin immediately after the Advance Payment has been rebated in
full and then additional Material is subsequently and actually ordered, shipped and invoiced to Buyer. 

 (c) The
parties acknowledge and agree that: (i) at Buyer’s request and in reliance upon Buyer’s projected requirements for Material which are reflected in Buyer’s purchasing obligations hereunder, Seller will maintain the operating mode
of the Seller Plants and Seller will spend substantial capital funds to construct the New Plant so as to enable Seller to supply each Yearly Volume of Material as provided in this Agreement; (ii) the payment of liquidated damages as provided in
this Section 4 is reasonable as a forecast of anticipated actual harm which would be caused by Buyer’s breach of its purchase 

***  Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment
has been requested with respect to the omitted portions. 

  
 3 

 
obligations under this Agreement; (iii) such liquidated damages are not unreasonably large or in the nature of or the magnitude of a penalty; (iv) actual damages would be difficult to
compute in the event of such a breach by Buyer; and, (v) obtaining an adequate remedy other than such liquidated damages would be inconvenient and not feasible. Seller recognizes that the liquidated damages provisions set forth in this
Section 4 are Seller’s sole and exclusive remedy in the event Buyer fails for any reason, including but not limited to the failure of the parties to agree on the price (as provided in the attached Exhibit B) of the Material in any
Contract Year, to purchase any or all of each Yearly Volume of Material as provided in this Agreement. 
  

	5.	If during the term of this Agreement Buyer wishes to switch a portion of the Buyer’s committed volume of one product size to another product size, Seller will
allow Buyer to adjust the relative proportions of the various product sizes being ordered to match the actual proportions being produced by the mine throughout the duration of the Agreement. Regardless of such an adjustment, Buyer agrees that the
total yearly commitment of all product sizes will be unchanged. 

  

	6.	Payment terms for Material and surcharges, if any, and excluding any associated with “freight prepaid” charges, are net thirty (30) days and all sales
are subject to Seller’s Terms and Conditions of Sale, a copy of which is attached to this Agreement as Exhibit A. In the event of any conflict between the terms set forth in the body of this Agreement and Exhibit A, the terms set
forth in the body of this Agreement will control. 

  

	7.	The parties will hold the terms of this Agreement in confidence provided that parties may disclose to their financial institutions, financial advisors, lawyers and
accountants. 

  

	8.	 The term of this Agreement will begin as of the Effective Date and will expire on the last day of the fourth (4th) Contract Year (June 30, 2016), unless sooner terminated
as provided herein. 

  

	9.	This Agreement, including the attached Exhibits A and B, represents the entire agreement and understanding between Seller and Buyer regarding the subject matter
hereof with respect to any time period during or after the first Contract Year and replaces all prior agreements, oral or written, regarding the same. The rights and obligations of Buyer under this Agreement may not be assigned or delegated, in
whole or in part, without the prior written consent of Seller. Any attempted assignment contrary to the provisions of this Section 8 shall be of no force and effect. 

 

	10.	This Agreement may only be amended by a written agreement signed by both Seller and Buyer. Buyer may from time to time issue a purchase order, release or other similar
transactional form or document. These forms and documents will be issued solely for the administrative convenience of the issuer and will not modify or amend this Agreement. 

 

	11.	It is expressly agreed and understood that the relationship between the parties to this Agreement is that of seller and buyer. This Agreement shall not create any
partnership, joint-venture or similar arrangement nor any agency or employer-employee relationship between the parties to this Agreement. 

 ***  Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with respect to the omitted
portions. 

  
 4 

									
	Seller:	 		 	 Buyer:

			
	Great Northern Sand LLC	 		 	 Green Field Energy Services, INC.
 a Delaware Corporation

					
	By:	 	/s/ Barry Ekstrand	 		 		 	
		 	(signature)	 		 	By:	 	/s/ Virgil K. Vincent
	Name:	 	Barry Ekstrand	 		 	Name:	 	Virgil Vincent
	Title:	 	President	 		 	Title:	 	Vice President

 ***  Certain information on this page has been omitted and filed separately with the Securities and Exchange
Commission. Confidential treatment has been requested with respect to the omitted portions. 

  
 5 

 Exhibit A 

Great Northern Sand LLC Terms and Conditions of Sales 

 

	1.	Prices: Unless otherwise noted on Seller’s invoice or in the Bill of Lading, all prices are net F.O.B. Seller’s plant and are exclusive of any sales, use or
property taxes. Any clerical errors are subject to correction. 

  

	2.	Warranty: Except as is furnished herein in writing by Seller to Buyer, Seller warrants solely to Buyer only that materials furnished hereunder will be of the kind
designated or specified, and no other warranty, except of title, shall be implied. Providing Buyer gives notice in accordance with Article 11, if goods sold hereunder contain defects in material or workmanship demonstrated to Seller’s
satisfaction to have existed at the time of departure from Seller’s plant, Seller, reserving the right to either inspect them in Buyer’s hands or request their return will, at Seller’s option, correct or replace at Seller’s
expense F.O.B. Seller’s plant, or give Buyer proper credit for such goods determined by Seller to defective, with all necessary packaging and transportation costs (if any) to be assumed by Buyer. The foregoing shall not apply to goods that
shall have been subjected to alteration, contamination, improper maintenance or storage, misapplication, misuse, negligence or accident after shipment from Seller’s plant by anyone except Seller’s authorized employees or to goods to which
Buyer’s tests use an unrepresentative sample. 

 EXCEPT AS SET FORTH ON FACE OF SELLER’S INVOICE OR ON
THE BILL OF LADING, ALL WARRANTIES OF MATERIALS SOLD HEREUNDER, EXPRESSED OR IMPLIED, INCLUDING BUT NOTLIMITED TO WARRANTY OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE SPECIFICALLY EXCLUDED FROM THIS TRANSACTION AND SHALL NOT APPLY.

 THE REMEDIES SET FORTH IN THIS ARTICLE 3 SHALL BE THE SOLE AND EXCLUSIVE REMEDY AVAILABLE TO THE BUYER, IN LIEU OF ALL
OTHER REMEDIES FOR DAMAGES (INCLUDING BUT NOT LIMITED TO DIRECT, CONSEQUENTIAL AND SPECIAL OR INCIDENTAL DAMAGE ARISING OUT OF LATE, PARTIAL AND/OR NON DELIVERY, THE SALE, USE, FURNISHING OF MATERIALS, OR SUITABILITY FOR GENERAL OR PARTICULAR USE).
IN NO EVENT WILL SELLER’S LIABILITY EXCEED THE CONTRACT (PURCHASE) PRICE FOR THE MATERIALS FOR WHICH LIABILITY IS CLAIMED. BUYER IS SOLELY RESPONSIBLE FOR DETERMINING SUITABILITY FOR USE AND SELLER SHALL IN NO EVENT BE LIABLE IN THIS RESPECT.
THE GIVING OR FAILURE TO GIVE ADVICE, RECOMMENDATION OR SAFETY WARNINGS OF ANY CHARACTER BY SELLER SHALL NOT IMPOSE ANY LIABILITY UPON SELLER. 
 If the materials sold hereunder are resold by Buyer, Buyer agrees to include in the contract for resale provisions which limit recoveries against Seller in accordance with this Article 3. No employee
or agent of Seller is authorized to 

 make any warranty statement, promise or understanding other than that which is
specifically set forth herein. The provisions in any specification data sheet or chart issued by Seller or attached hereto are descriptive only and are not warranties or representations. 

 

	3.	Safety Warning, Handling and Buyer Indemnity: PROLONGED INHALATION OF AIRBORNE SILICA CONTAINED IN SILICA SAND AND OTHER SILICA CONTAINING MATERIALS CAN CAUSE
RESPIRATORY DISEASE INCLUDING SILICOSIS, A PROGRESSIVE, INCAPACITATING AND SOMETIMES FATAL DISEASE OF THE LUNGS. IARC HAS DETERMINED THAT CRYSTALLINE (WHICH INCLUDES (MICROCRYSTALLINE) SILICA INHALED FROM OCCUPATIONAL SOURCES CAN CAUSE CANCER IN
HUMANS. THE RISK OF LUNG DISEASE IS INCREASED IF SMOKING IS COMBINED WITH SILICA RESPIRATION. 

 PROPER
RESPIRATORY PROTECTION, SILICA DUST PREVENTION AND APPLICABLE HEALTH AND SAFETY REGULATORY PROTOCOL MUST BE STRICTLY OBSERVED AT ALL TIMES WHEN HANDLING SILICA BASED MATERIALS TO MINIMIZE RISK OF INJURY DUE TO INHALATION OF AIRBORNE SILICA.

 SELLER WILL NOT BE LIABLE TO BUYER FOR ANY HARMFUL HEALTH EFFECTS WHICH MAY BE CAUSED BY EXPOSURE TO SILICA CONTAINING
MATERIALS SOLD BY SELLER. Buyer warrants that it will adequately warn all of its employees and customers who may come in contact with Seller’s silica containing materials of the above described health hazards. Further, Buyer warrants it will
fully comply with all applicable health and safety regulations and orders relating to the workplace handling of Seller’s goods. Buyer agrees that if the goods sold hereunder are resold by Buyer, Buyer will include in its contract for resale,
provisions which include the full substance those contained in this Article 4, including the foregoing safety warning. 

Should Buyer breach any of the duties and warranties set forth within this Article 4, BUYER AGREES TO FULLY INDEMNIFY, DEFEND
ANDHOLD SELLER HARMLESS from and against any and all liability, claims, and suits of any third party including but not limited to employees or insurers of Buyer, in any way, in whole or in part, alleged to have arisen out of exposure to the
Seller’s silica containing materials which are the subject to these Terms. 
  

	4.	Credit and Payments: Unless noted otherwise on Seller’s invoice and/or on the Bill of Lading, payment shall be made net thirty (30) days after shipment date.
Seller reserves the right at any time to alter or suspend credit, or to change credit terms provided herein, when in its sole opinion Buyer’s financial condition so warrants. (Failure to pay an invoice at due date, at Seller’s election,
makes all subsequent invoices immediately due and payable, irrespective of terms and Seller 

 

  
 ***  Certain information on
this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. 

  
 6 

 
may withhold all subsequent deliveries under all outstanding orders until full payment is received). In the event of insolvency of Buyer, default in payment or repudiation by Buyer, or any breach
of the terms of this agreement, Seller shall have the right to stop delivery of the goods and the Buyer shall be liable to Seller for any and all liabilities incurred by Seller as a result thereof including, but not limited to liabilities to third
parties, collection costs, attorneys’ fees, and any associated costs incurred by Seller. 
  

	5.	Delivery: Delivery and shipment dates are estimated dates only and are not guaranteed. In estimating such dates, no allowance has been made nor shall Seller be liable
for any damages, losses, penalties, whether direct, indirect, special, incidental or consequential, resulting from Seller’s failure or delay in performing, or for delays of carriers or delays from labor difficulties, Y2K-related computer error,
shortages, strikes or stoppages of any sort, fires, accidents, failure or delay in obtaining materials or in Seller’s mining and processing facility, acts of government affecting Seller directly or indirectly, bad weather, or any causes beyond
Seller’s control or causes designated Acts of God or force majeure by any statute or court of law. 

  

	6.	Shipping: Unless Buyer specifies otherwise in writing, (a) materials will be shipped as Seller may deem proper, and (b) routing and manner of shipment will be
at Seller’s discretion. If special routing instructions are given, Buyer agrees to pay additional handling and transportation charges, if any. 

  

	7.	Termination: Seller may by written notice to Buyer terminate the whole or any part of this contract in any one of the following circumstances: (1) if Buyer fails
to remit payment within the time specified herein or any authorized extension thereof; or (2) if Buyer fails to perform any of the other provisions of this contract after written notice to Buyer

	 	
of such failure and Buyer’s failure to cure the same within thirty (30) days after receipt of such written notice; or (3) if Buyer becomes insolvent, or engages in any act which
reasonably causes the Seller to deem itself insecure. Seller shall not by reason of such termination be liable to Buyer for any compensation, reimbursement, or damages including, in particular, but not limited to any direct, indirect, special,
incidental or consequential damages or losses whatsoever, on account of expenditures, investments, or commitments. 

  

	8.	Assignment: The rights and obligations of Buyer hereunder may not be assigned without the prior written consent of Seller. 

 

	9.	Non-Waiver: Any failure by either party to require full payment or strict performance by the other party of any of the provisions herein or to exercise any right or
remedy hereunder, shall not waive or diminish such party’s right thereafter to demand strict compliance therewith or with any other provision or to exercise any such right or remedy. Waiver of any default shall not waive any other default.

  

	10.	Applicable Law: This agreement shall be governed by and construed under the laws of the State of Texas, U.S.A. 

 

	11.	Claims: It shall be the duty of Buyer to thoroughly inspect the materials purchased from Seller. All claims of any nature relating to the materials subject to this
order including but not limited to claims of defect in materials, nonconforming discrepancy in quantity or delivery date shall be made in writing to Seller’s Customer Service Department within fifteen (15) days of receipt of goods by
Buyer. Failure to make any such written claim within the above-prescribed period shall constitute waiver of any such claims and shall be deemed acceptance of such materials, quantities or delivery dates.

 

 ***  Certain information on this page has been omitted and filed separately with the Securities
and Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. 

  
 7 

 EXHIBIT A 

Great Northern Sand LLC Agreement 
 ***  Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with respect to the omitted
portions. 

  
 8 

 Exhibit B 

Pricing 
  

			
	- First Contract Year:	  	Price for First Contract Year shall be as follows:
		  	        Northern White Grade [***]
		  	        Northern White Grade [***]
		  	        Northern White Grade [***]
		
		  	In addition, any “freight prepaid” prices shall include any freight and terminal costs then in effect and shall be subject to freight and terminal increases as they
occur.*
		
	 - Second Contract Year:
	  	Material prices to be agreed in writing by the parties; provided that, excluding any freight and terminal costs, the material price increase or price decrease for each product
over that in effect during the immediately preceding Contract Year shall be no more than [***] in either case. In addition, any “freight prepaid” prices shall include any freight and terminal costs then in effect and shall be subject to
freight and terminal increases as they occur.*
		
	 - Third Contract Year:
	  	Material prices to be agreed in writing by the parties; provided that, excluding any freight and terminal costs, the material price increase or price decrease for each product
over that in effect during the immediately preceding Contract Year shall be no more than [***] in either case. In addition, any “freight prepaid” prices shall include any freight and terminal costs then in effect and shall be subject to
freight and terminal increases as they occur.*
		
	 -Fourth Contract Year:
	  	Material prices to be agreed in writing by the parties; provided that, excluding any freight and terminal costs, the material price increase or price decrease for each product
over that in effect during the immediately preceding Contract Year shall be no more than [***] in either case. In addition, any “freight prepaid” prices shall include any freight and terminal costs then in effect and shall be subject to
freight and terminal increases as they occur.*

 Failure of the parties to agree on the applicable price for any Contract Year as set forth above will have the effect of
extending the price in effect during the immediately preceding Contract Year. 
 In addition, Buyer will pay such production based energy
surcharge, if any, as may be imposed from time to time by Seller. Any such energy surcharge will be added to invoices as a separate line item. 

*** Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been
requested with respect to the omitted portions. 

  
 9 

 * Regardless of the delivery terms indicated, risk of loss will pass to Buyer when Material is delivered to
the applicable carrier at the Seller Plant. With respect to any “freight prepaid” pricing, as a convenience for Buyer, Seller will, on Buyer’s behalf, make arrangements and prepay the transportation costs assessed by carriers to have
the Material shipped from the applicable Seller Plant to the applicable Buyer plant, either directly or indirectly via a terminal. Any such “freight prepaid” charges will be invoiced separately from Material invoices. Seller will not incur
any liability in the event of any delay or failure of carriers to perform transportation services. Buyer will be responsible for filing any claims with carriers. Transportation costs are subject to changes in base freight rates as well as the
applicability of surcharges. When surcharges are assessed, or when freight rates or surcharges are increased, by the carrier, Seller will change the then “freight prepaid” price by the same amount. Any such change will become effective on
the date implemented by the carrier. Transportation surcharges, if any, will be added to invoices as separate line items and paid by Buyer. Payment terms for any “freight prepaid” charges are net fifteen (15) days. 

***  Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment
has been requested with respect to the omitted portions. 

  
 10 

 SECURITY AGREEMENT—MEMBERSHIP INTERESTS 

CRS PROPPANTS LLC, a Delaware limited liability company (“CRS”), whose address is 777 Post Oak Boulevard
Suite 250, Houston, Texas 77056, and GREEN FIELD ENERGY SERVICES, INC., a Delaware corporation (“Secured Party”), whose address is 4023 Ambassador Caffery, Lafayette, LA., agree as follows: 

RECITALS 

A. CRS and Secured Party have entered into that certain Plant Construction Reimbursement and Sales Agreement dated substantially
concurrently herewith (the “Sales Agreement”) pursuant to which Secured Party has agreed to pay the Advance Payment (as defined in the Sales Agreement) to CRS as an advance payment of [***] per ton for the first [***] tons of
Material (as defined in the Sales Agreement) required to be purchased by Secured Party each year under the Sales Agreement, and CRS has agreed to credit the Advance Payment against the purchase price for the first [***] tons per year of
Material actually ordered, shipped and invoiced to Secured Party, as more fully provided in the Sales Agreement. 
 B. In order
to secure the credit of the Advance Payment against the purchase price for the first [***] tons of Material required to be purchased by Secured Party each year under the Sales Agreement, Secured Party has requested that CRS grant Secured Party
a security interest in the Membership Interests (as defined below) of GREAT NORTHERN SAND LLC, a Delaware limited liability company (the “Limited Liability Company”), and CRS has agreed to do so, all upon the terms and conditions
set forth herein. 
 ARTICLE 1 
 Creation of Security Interest 
 In order to secure the credit of the
Advance Payment against the purchase price for Material actually ordered, shipped and invoiced to Secured Party under the Sales Agreement, CRS hereby grants to Secured Party a security interest in and mortgages, assigns, transfers, delivers,
pledges, sets over and confirms to Secured Party all of CRS’s remedies, powers, privileges, rights, titles and interests of every kind and character now owned or hereafter acquired, created or arising (whether as a member or otherwise) in and
to 30% of the membership interests in the Limited Liability Company listed and described on Exhibit A, hereto attached and hereby made a part hereof (the “Membership Interests”), which Membership Interests were created
under and by virtue of the Limited Liability Company Agreement dated effective as of June 24, 2010 (as amended, the “Limited Liability Company Agreement”), together with all accessions, appurtenances and additions to and
substitutions for any of the foregoing and all products and proceeds of any of the foregoing. All of the properties and interests described in this Article are herein collectively called the “Collateral.” 

ARTICLE 2 

Secured Credit 
 2.1 This Agreement is made to secure a credit of the Advance Payment against the purchase price for Material purchased by Secured Party each year under the Sales Agreement. 

***  Certain information on this page has been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment
has been requested with respect to the omitted portions. 

 2.2 Each time CRS credits the Advance Payment against the purchase price Material purchased
by Secured Party each year under the Sales Agreement, the security interest on the Membership Interests pledged hereunder shall be automatically reduced by the proportionate amount that the Advance Payment has been reduced by the credit against the
purchase price Secured Party hereby authorizes and directs CRS to file UCC-3 financing statement amendments from time to time with the applicable Secretary of State releasing the Membership Interests that are no longer subject to this Agreement.

 ARTICLE 3 
 Representations and Warranties 
 CRS represents and warrants as follows:

 (a) CRS is the legal and equitable owner and holder of good and marketable title to the Collateral free of any adverse claim
and free of any security interest or encumbrance except only for the security interest granted hereby in the Collateral or as provided for in the LLC Agreement. 
 (b) CRS’s execution, delivery and performance of this Agreement does not and will not require any consent of any other person or entity. 

(c) Except as otherwise expressly permitted by this Agreement, the liens and security interests of this Agreement will constitute valid
and perfected first and prior liens and security interests on the Collateral, subject to no other liens, security interests or charges whatsoever. 
 (d) The Collateral is genuine, free from adverse claims or other security interests, defaults or defenses, and complies with applicable laws concerning form, content and manner of preparation and
execution. 
 ARTICLE 4 
 Covenants 
 4.1 CRS covenants and agrees with Secured Party as follows:

 (a) CRS shall furnish to Secured Party such instruments as may be required by Secured Party to assure the transferability of
the Collateral when and as often as may be requested by Secured Party. 
 (b) CRS will, on request of Secured Party,
(i) promptly correct any defect, error or omission which may be discovered in the contents of this Agreement or in any other instrument executed in connection herewith or in the execution or acknowledgment thereof; and (ii) execute,
acknowledge, deliver and record or file such further instruments (including further security agreements, financing statements and continuation statements) and do such further acts as may be necessary, desirable or proper to carry out more
effectively the purposes of this Agreement and such other instruments and to subject to the security interests hereof and thereof any property intended by the terms hereof and thereof to be covered hereby and thereby including specifically any
renewals, additions, substitutions, replacements or appurtenances to the then Collateral. 
 ***  Certain information on this page has
been omitted and filed separately with the Securities and Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. 

  
 2 

 ARTICLE 5 
 Events of Default 
 If CRS fails to credit the Advance Payment against the
purchase price for Material purchased by Secured Party each year under the Sales Agreement as required under the terms of the Sales Agreement, Secured Party shall send CRS written notice thereof and CRS shall have thirty (30) days after its
receipt of such notice to so credit the Advance Payment. If CRS fails to credit the Advance Payment within such thirty (30) day period, the same shall constitute an Event of Default (herein so called) under this Agreement. 

ARTICLE 6 Remedies in Event of Default 
 6.1 Upon the occurrence of an Event of Default, and at any time thereafter until such time, if any, as such Event of Default has been cured: 

(a) Secured Party may, without notice except as hereinafter provided, sell the Collateral or any part thereof at public or private sale
(with or without appraisal or having the Collateral at the place of sale) for cash, upon credit, or for future delivery, and at such price or prices as Secured Party may deem best, and Secured Party or any entity controlling the Secured Party may be
the purchaser of any and all of the Collateral so sold and may apply upon the purchase price therefore any of the Advance Payment that has not been credited in accordance with the Sales Agreement and thereafter hold the same absolutely free from any
right or claim of whatsoever kind. Secured Party is authorized at any such sale, if Secured Party deems it advisable or is required by applicable law so to do, (i) to restrict the prospective bidders on or purchasers of any of the Collateral to
a limited number of sophisticated investors who will represent and agree that they are purchasing for their own account for investment and not with a view to the distribution or resale of any of the Collateral, (ii) to cause to be placed on
certificates for any or all of the Collateral a legend to the effect that such security has not been registered under the Securities Act of 1933 and may not be disposed of in violation of the provisions of said Act, (iii) to disclaim and to
refuse to give any warranty, and (iv) to impose such other limitations or conditions in connection with any such sale as Secured Party deems necessary or advisable in order to comply with said Act or any other applicable law. CRS covenants and
agrees that it will execute and deliver such documents and take such other action as Secured Party deems necessary or advisable in order that any such sale may be made in compliance with applicable law. Upon any such sale Secured Party shall have
the right to deliver, assign and transfer to the purchaser thereof the Collateral so sold. Each purchaser at any such sale shall hold the property sold absolutely free from any claim or right of whatsoever kind, including any equity or right of
redemption, stay or appraisal which CRS has or may have under any rule of law or statute now existing or hereafter adopted. To the extent notice is required by applicable law, Secured Party shall give CRS written notice at the address set forth
herein (which shall satisfy any requirement of notice or reasonable notice in any applicable statute) of Secured Party’s intention to make any such public or private sale. Such notice (if any is required by applicable law) shall be personally
delivered or mailed, postage prepaid, at least ten (10) calendar days before the date fixed for a public sale, or at least ten (10) calendar days before the date after which the private sale or other disposition is to be made, unless the
Collateral is of a type customarily sold on a recognized market, is perishable or threatens to decline speedily in value. Such notice (if any is required by 
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portions. 

  
 3 

 
applicable law), in case of public sale, shall state the time and place fixed for such sale or, in case of private sale or other disposition other than a public sale, the time after which the
private sale or other such disposition is to be made. Any public sale shall be held at such time or times, within the ordinary business hours and at such place or places, as Secured Party may fix in the notice of such sale. At any sale the
Collateral may be sold in one lot as an entirety or in separate parcels as Secured Party may determine. Secured Party shall not be obligated to make any sale pursuant to any such notice. Secured Party may, without notice or publication, adjourn any
public or private sale or cause the same to be adjourned from time to time by announcement at any time and place fixed for the sale, and such sale may be made at any time or place to which the same may be so adjourned. In case of any sale of all or
any part of the Collateral on credit or for future delivery, the Collateral so sold may be retained by Secured Party until the selling price is paid by the purchaser thereof, but Secured Party shall incur no liability in case of the failure of such
purchaser to take up and pay for the Collateral so sold, and in case of any such failure, such Collateral may again be sold upon like notice. Each and every method of disposition described in this Section shall constitute disposition in a
commercially reasonable manner. 
 (b) Secured Party shall have all the rights of a secured party after default under the
Uniform Commercial Code of Texas. 
 6.2 All remedies herein expressly provided for are cumulative of any and all other remedies
existing at law or in equity, and the resort to any remedy provided for hereunder or provided for by law shall not prevent the concurrent or subsequent employment of any other appropriate remedy or remedies. 

ARTICLE 7 

Additional Agreements 
 7.1 Upon the full credit of the Advance Payment against the purchase price for Material purchased by Secured Party each year under the Sales Agreement, all rights under this Agreement shall terminate and
the Collateral shall become wholly clear of the security interest evidenced hereby, and upon written request by CRS such security interest shall be released by Secured Party in due form and at CRS’s cost. 

7.2 CRS will cause all financing statements and continuation statements relating hereto to be recorded, filed, re-recorded and refiled in
such manner and in such places as Secured Party shall reasonably request and will pay all such recording, filing, re-recording, and refiling taxes, fees and other charges. CRS hereby authorizes Secured Party to file all such financing statements and
to take such other measures as Secured Party may deem necessary or appropriate to perfect any security interests created hereunder in and to the Collateral. 
 7.3 This Agreement shall not be changed orally but shall be changed only by agreement in writing signed by CRS and Secured Party. No course of dealing between the parties, no usage of trade and no parole
or extrinsic evidence of any nature shall be used to supplement or modify any of the terms or provisions of this Agreement. 

7.4 Any notice, request or other communication required or permitted to be given hereunder shall be given in writing by delivering it
against receipt for it, by depositing it with an 
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the Securities and Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. 

  
 14 

 
overnight delivery service or by depositing it in a receptacle maintained by the United States Postal Service, postage prepaid, registered or certified mail, return receipt requested, addressed
to the respective parties at the address set forth above (and if so given, shall be deemed given when mailed). Either party’s address for notice may be changed at any time and from time to time, but only after thirty (30) days’
advance written notice to the other party and shall be the most recent such address furnished in writing by such party. 
 7.5
This Agreement shall be binding upon CRS, and the heirs, devisees, executors, administrators, personal representatives, trustees, beneficiaries, conservators, receivers, successors and assigns of CRS, including all successors in interest of CRS in
and to all or any part of the Collateral, and shall benefit Secured Party and its successors and assigns. 
 7.6 Terms used in
this Agreement which are defined in the Texas Uniform Commercial Code are used with the meanings as therein defined. 
 7.7
THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE APPLICABLE LAWS OF THE STATE OF TEXAS AND THE UNITED STATES OF AMERICA FROM TIME TO TIME IN EFFECT. 

7.8 This Agreement and the Sales Agreement embody the entire agreement and understanding between Secured Party and CRS with respect to
their subject matter and supersede all prior conflicting or inconsistent agreements, consents and understandings relating to such subject matter. CRS acknowledges and agrees there is no oral agreement between CRS and Secured Party which has not been
incorporated in this Agreement and the Sales Agreement. 
 EXECUTED as of the 28th day of October, 2011. 

 

			
	CRS:
	
	 CRS PROPPANTS LLC,
 a Delaware limited liability company

		
	By:	 	/s/ Barry Ekstrand
	Name:	 	Barry Ekstrand
	Title:	 	President

  

			
	SECURED PARTY:
	
	 GREEN FIELD ENERGY SERVICES, INC. a
 Delaware corporation

		
	By:	 	/s/ Virgil K. Vincent
	Name:	 	Virgil Vincent
	Title:	 	Vice President

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Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. 

  
 5 

 LIMITED LIABILITY COMPANY AGREEMENT 

OF 

GREAT NORTHERN SAND LLC 
 (a Delaware Limited Liability Company) 
 This Limited Liability Company
Agreement (the “Agreement”) of Great Northern Sand LLC (the “Company”), dated effective as of June 24, 2010 (the “Effective Date”), is hereby adopted, executed and agreed to by the party listed
below as the sole Member. 
 1. Formation. The Company was formed on the Effective Date, as a Delaware limited
liability company under and pursuant to the Delaware Limited Liability Company Act, as amended (the “Act”). 

2. Term. The term of existence of the Company shall be perpetual, unless the Company is dissolved in accordance with either
the provisions of this Agreement or the Act. 
 3. Purposes. The purposes of the Company are to carry on any
lawful business, purpose or activity for which limited liability companies may be formed under the Act. The Company shall have all of the powers to conduct such business as permitted under the Act. 

4. Member. CRS Proppants LLC a Delaware limited liability company, is the sole member of the Company (such member or its
successor, the “Member”). 
 5. Allocations to Member. The Member shall receive the allocation of
all profits, losses, gains, deductions and credits with respect to the operations of the Company. 
 6.
Contributions. Without creating any rights in favor of any third party, the Member may, from time to time, make contributions of cash or property to the capital of the Company, but shall have no obligation to do so. 

7. Distributions. The Member shall be entitled (a) to receive all distributions (including, without limitation,
liquidating distributions) made by the Company and (b) to enjoy all other rights, benefits and interests as the sole Member of the Company. 
 8. Management. The management of the Company is fully reserved to the Member. The powers of the Company shall be exercised by or under the authority of, and the business and affairs of the
Company shall be managed under the direction of, the Member, who shall make all decisions and take all actions for the Company. The Member may from time to time delegate to one or more persons such authority as the Member may deem advisable and may
elect one or more persons as a president, vice president, secretary, treasurer or any other title of an officer (“Officer”) of the Company as determined by the Member to act on behalf of the Company with respect to any matter or
matters delegated to such person by the Member. No Officer need be a resident of the State of Delaware. In the event the Member appoints a person as an Officer of the Company, the Member shall be deemed to have assigned and may thereafter assign
titles to particular Officers. 
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Exchange Commission. Confidential treatment has been requested with respect to the omitted portions. 

 9. Officers. Each Officer shall hold office until the death, resignation, or
removal of such Officer by the Member (with or without cause). Unless the Member decides otherwise, all Officers of the Company, as between themselves and the Company, shall have such authority, perform such duties and manage the Company as provided
below. 
 (a) The President. The President shall have the active, executive management of the operations
of the Company, subject however to the control of the Member. The President shall, in general, perform all duties incident to the office of president and such other duties as from time to time may be assigned to him or her by the Member. 

(b) The Vice President. The Vice President shall have such powers and perform such duties as the Member may from
time to time prescribe or as the President may from time to time delegate to him or her. At the request of the President, the Vice President may temporarily act in place of the President. In the case of the death, absence, or inability to act of the
President, the Member may designate the Vice President to perform the duties of the President. 
 (c) The
Secretary. The Secretary shall keep or cause to be kept the minutes of any Company meetings; shall see that all notices are duly given in accordance with the provisions of applicable law; shall be custodian of the records and, in general, shall
perform all duties incident to the office of the secretary and such other duties as may from time to time be assigned by the Member or by the President. 
 (d) The Treasurer. The Treasurer shall be the principal financial officer of the Company; shall have charge and custody of and be responsible for all funds of the Company and deposit all such funds
in the name of the Company in such banks, trust companies or other depositories as shall be selected by the Member; shall receive and give receipts for moneys due and payable to the Company from any source; and, in general, shall perform all the
duties incident to the office of treasurer and such other duties as from time to time may be assigned by the Member or by the President. The Treasurer shall render to the President and the Member, whenever the same shall be required, an account of
all transactions accomplished as treasurer and of the financial condition of the Company. 
 10. Tax Matters. The
Company and the Member shall comply with all requirements of the Internal Revenue Code of 1986, as amended, with respect to the Company. In this regard, the Company shall be disregarded for federal tax purposes as provided in Treasury Regulations
Section 301.7701-3. 
 11. Indemnification. To the extent allowed under the laws of the State of Delaware,
the Company shall indemnify the Member and the Company’s Officers and employees from and against any and all losses, claims, damages, liabilities, joint or several, expenses (including reasonable legal fees and expenses), judgments, fines,
settlements, and other amounts arising from any and all claims, demands, actions, suits or proceedings, civil, criminal, administrative or investigative, that relate to the operations of the Company as set forth in this Agreement in which the
Member, any Officer or any employee may be involved, or is threatened to be involved, as a party or otherwise, REGARDLESS OF WHETHER ARISING FROM ANY 
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portions. 

  
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ACT OR OMISSION WHICH CONSTITUTED THE SOLE, PARTIAL OR CONCURRENT NEGLIGENCE (WHETHER ACTIVE OR PASSIVE) OF SUCH MEMBER, OFFICER OR EMPLOYEE, unless it is established that: (1) the act or
omission of such Member, Officer or employee was material to the matter giving rise to the proceeding and either was committed in bad faith or was the result of active and deliberate dishonesty; (2) the Member, Officer or employee actually
received an improper personal benefit in money, property or services; or (3) in the case of any criminal proceeding, the Member, Officer or employee had reasonable cause to believe that the act or omission was unlawful. The termination of any
proceeding by judgment, order or settlement does not create a presumption that the Member, Officer or employee did not meet the requisite standard of conduct set forth in this Section 11. The termination of any proceeding by conviction
or upon a plea of nolo contendere or its equivalent, or an entry of an order of probation prior to judgment, creates a rebuttable presumption that the Member, Officer or employee acted in a manner contrary to that specified in this
Section 11. Any indemnification pursuant to this Section 11 shall be made only out of the assets of the Company, including insurance proceeds, if any. 
 12. Transfers. The Member may freely transfer all or any part of its membership interest in the Company at any time, and any such transferee shall become an additional or substituted Member
of the Company, as applicable, with full rights of a Member as set forth herein and in the Act. 
 13.
Dissolution. The Company shall dissolve and its affairs shall be wound up at such time, if any, as the Member may elect or as may be required under the Act. No other event will cause the Company to dissolve. 

14. Amendment. This Agreement may be amended at any time with the consent of the Member. 

15. Governing Law. THIS AGREEMENT IS GOVERNED BY AND SHALL BE CONSTRUED IN ACCORDANCE WITH THE LAWS OF THE STATE OF DELAWARE
(EXCLUDING ITS CONFLICT-OF-LAWS RULES). 
 [Signature Page Follows] 

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has been requested with respect to the omitted portions. 

  
 3 

 IN WITNESS WHEREOF, the undersigned sole Member of the Company has executed this
Agreement as of the date first above written. 
  

			
	SOLE MEMBER:
	
	CRS PROPPANTS LLC
		
	By:	 	/s/ Stephen R. Horn
	Name:	 	Stephen R. Horn
	Title:	 	Manager

  

			
	
		
	By:	 	/s/ Steven L. Cobb
	Name:	 	Steven L. Cobb
	Title:	 	Manager

 LLC AGREEMENT 
 GREAT NORTHERN SAND LLC 
 SIGNATURE PAGE 

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has been requested with respect to the omitted portions.

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