EX-10.2




 Exhibit 10.2 

OMNIBUS AGREEMENT 
 by
and among 
 OASIS PETROLEUM INC., 

OASIS PETROLEUM LLC, 

OMS HOLDINGS LLC, 

OASIS MIDSTREAM SERVICES LLC, 

OASIS MIDSTREAM PARTNERS LP, 

OMP GP LLC 
 and

 OMP OPERATING LLC 

This OMNIBUS AGREEMENT (“Agreement”) is entered into on, and effective as of, the Closing Date (as defined herein)
among Oasis Petroleum Inc., a Delaware corporation (“Oasis”), Oasis Petroleum LLC, a Delaware limited liability company, OMS Holdings LLC, a Delaware limited liability company, Oasis Midstream Services LLC, a Delaware limited
liability company(“OMS”), Oasis Midstream Partners LP, a Delaware limited partnership (the “Partnership”), OMP GP LLC, a Delaware limited liability company and the general partner of the Partnership (the
“General Partner”) and OMP Operating LLC, a Delaware limited liability company. The above-named entities are sometimes referred to in this Agreement each as a “Party” and collectively as the
“Parties.” 
 R E C I T A L S: 

1.    The Parties desire by their execution of this Agreement to evidence their understanding, as more fully set forth in
Article II, with respect to certain indemnification obligations of the Parties to each other. 
 2.    The Parties
desire by their execution of this Agreement to evidence their understanding, as more fully set forth in Article III, with respect to the granting of a license from Oasis to the Partnership Group. 

3.    The Parties desire by their execution of this Agreement to evidence their understanding, as more fully set forth in
Article IV, with respect to the Partnership Group’s right of first offer with respect to the ROFO Assets (as defined herein). 
 In
consideration of the premises and the covenants, conditions and agreements contained herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the Parties hereto hereby agree as follows:









 ARTICLE I 

Definitions 

1.1    Definitions. As used in this Agreement, the following terms shall have the respective meanings set forth
below: 
 “Affiliate” means, with respect to any Person, any other Person that directly or indirectly through one or more
intermediaries controls, is controlled by or is under common control with, the Person in question. 
 “Change of Control”
means, with respect to any Person (the “Applicable Person”), any of the following events: (i) any sale, lease, exchange or other transfer (in one transaction or a series of related transactions) of all or substantially all of
the Applicable Person’s assets to any other Person, unless immediately following such sale, lease, exchange or other transfer such assets are owned by the Applicable Person or an Affiliate of the Applicable Person; (ii) the dissolution or
liquidation of the Applicable Person; (iii) the consolidation or merger of the Applicable Person with or into another Person (other than an Affiliate of the Applicable Person), other than any such transaction where (a) the outstanding
Voting Securities of the Applicable Person are changed into or exchanged for Voting Securities of the surviving Person or its parent and (b) the holders of the Voting Securities of the Applicable Person immediately prior to such transaction
own, directly or indirectly, not less than a majority of the outstanding Voting Securities of the surviving Person or its parent immediately after such transaction; and (iv) a “person” or “group” (within the meaning of
Sections 13(d) or 14(d)(2) of the Exchange Act), other than Oasis or its Affiliates, being or becoming the “beneficial owner” (as defined in Rules 13d-3 and
13d-5 under the Exchange Act) of more than 50% of all of the then outstanding Voting Securities of the Applicable Person, except in a merger or consolidation that would not constitute a Change of Control under
clause (iii) above. 
 “Closing Date” means            ,
2017. 
 “Confidential Information” means any proprietary or confidential information of a Party or its Affiliate,
including: trade secrets, scientific or technical information, design, invention, process, procedure, formula, improvements, product planning information, marketing strategies, financial information, information regarding operations, consumer and/or
customer relationships, consumer and/or customer identities and profiles, sales estimates, business plans, and internal performance results relating to the past, present or future business activities of a Party or its Affiliates and the consumers,
customers, clients and suppliers of any of the foregoing, and any other information that that is competitively sensitive or that provides a Party or its Affiliate a competitive advantage by virtue of it not generally known to the public.
Confidential Information includes such information as may be contained in or embodied by documents, substances, engineering and laboratory notebooks, reports, data, specifications, computer source code and object code, flow charts, databases,
drawings, pilot plants or demonstration or operating facilities, diagrams, specifications, bills of material, equipment, prototypes and models, and any other tangible manifestation (including data in computer or other digital format) of the
foregoing; provided, however, that Confidential Information does not include information that a receiving Party can show (A) has been published or has otherwise become available to the general public


  
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as part of the public domain without breach of this Agreement or a duty of confidence, (B) has been furnished or made known to the receiving Party without any obligation to keep it
confidential by a third party who has proper authority to disclose such information to the receiving Party on a non-confidential basis or (C) was developed independently of Confidential Information or any
other information furnished or made available to the receiving Party as contemplated under this Agreement or the Services and Secondment Agreement. Information is not to be considered to be in the public domain for the purposes of this Agreement
unless it is lawfully available to the general public from a single source without restriction on its use or disclosure. In addition, specific information is not considered to be in the public domain for purposes of this Agreement if only a general
embodiment or description of such information is available in the public domain. 
 “Contribution Agreement” means that
certain Contribution Agreement, dated as of the Closing Date, by and among the General Partner, the Partnership, Oasis and certain other Oasis Entities and Partnership Group Members, together with the additional conveyance documents and instruments
contemplated or referenced thereunder. 
 “control,” “is controlled by” or “is under common
control with” means the possession, directly or indirectly, of the power to direct or cause the direction of the management and policies of a Person, whether through ownership of voting securities, by contract, or otherwise. 

“Covered Environmental Losses” means any and all Losses (including, without limitation, the costs and expenses associated
with any Environmental Activity or of any environmental or Toxic Tort pre-trial, trial or appellate legal, litigation or arbitration work) related to or arising out of or in connection with: 

(a)    any violation or correction of a violation of any Environmental Law related to the ownership or operation of the
Partnership Assets; and 
 (b)    any event, action, omission, occurrence or condition that has an adverse impact on the
environment and is associated with or arising from the ownership or operation of the Partnership Assets (including, without limitation, the presence of Hazardous Substances at, on, under, about or migrating to or from the Partnership Assets or the
exposure to, or disposal or Release of, Hazardous Substances arising out of the operation of Partnership Assets, including at non-Partnership Asset locations where such Hazardous Substances have been
transported or disposed). 
 “Environmental Activity” means any investigation, study, assessment, evaluation, sampling,
testing, monitoring, containment, removal, disposal, closure, corrective action, remediation (whether active or passive), risk-based closure activities, natural attenuation, restoration, bioremediation, response, repair, cleanup or abatement that is
required under any Environmental Law or performed under any Voluntary Cleanup Program, including, without limitation, the cost and expense of preparing and implementing any closure, remedial, corrective action, or other plans required under any
Environmental Law or performed under any Voluntary Cleanup Program, the establishment of institutional or engineering controls and the performance of or participation in a supplemental environmental project in partial or whole mitigation of a fine
or penalty; provided, however, that Environmental Activity shall not include the costs of, or associated with, any project management. 

  
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 “Environmental Laws” means all applicable federal, state, and local laws,
statutes, rules, regulations, orders, ordinances, judgments, codes, injunctions, decrees, Environmental Permits and other legally enforceable requirements and fundamental principles of common law relating to (a) pollution or protection of the
environment (including, without limitation, natural resources), or workplace health or safety, (b) any Release or threatened Release of, or any exposure of any natural person or property to, any Hazardous Substance and (c) the generation,
manufacture, processing, distribution, use, recycling, treatment, storage, transport, handling or disposal of any Hazardous Substance, including, without limitation, the federal Comprehensive Environmental Response, Compensation, and Liability Act,
as amended by the Superfund Amendments Reauthorization Act, 42 USC § 9601 et seq., the Resource Conservation and Recovery Act, 42 USC § 6901 et seq., the Clean Air Act, 42 USC § 7401 et seq., the Federal Water Pollution Control Act,
33 USC § 1251 et seq., the Toxic Substances Control Act, 15 USC § 2601 et seq., the Oil Pollution Act, 33 USC § 2701 et seq., the Safe Drinking Water Act, 42 USC § 300f through 300j, the Hazardous Materials Transportation Law, 49
USC § 5101 et seq., the Emergency Planning and Community Right-to-Know Act, 42 USC § 11001 et seq., the Endangered Species Act, 16 USC § 1531 et seq., the
National Environmental Policy Act, 42 USC § 4321 et seq., the Occupational Safety and Health Act, 29 USC § 651 et seq., and other federal environmental conservation and protection laws, and the regulations promulgated pursuant thereto, and
any state or local counterparts, each as amended through and existing on the Closing Date. 
 “Environmental Permits” means
any permit, approval, license, registration, certification, consent, exemption, variance or other authorization required under or issued pursuant to any Environmental Law. 

“Exchange Act” means the Securities Exchange Act of 1934, as amended. 

“Hazardous Substance” means any substance that, by its nature or its use, is regulated or as to which liability might arise
under any Environmental Law including, without limitation, (a) each substance that is designated, defined or classified as a hazardous waste, solid waste, hazardous material, pollutant, contaminant or toxic or hazardous substance, or terms of
similar meaning found in any Environmental Law, (b) petroleum, petroleum products, natural gas, crude oil and fractions or byproducts thereof, gasoline, fuel oil, motor oil, waste oil, diesel fuel, jet fuel and other petroleum hydrocarbons,
whether refined or unrefined, and (c) radioactive materials, asbestos containing materials, radon and polychlorinated biphenyls. 

“Indemnified Party” means either one or more members of the Partnership Group or one or more Oasis Entities, as the case may
be, each in its capacity as a party entitled to indemnification in accordance with Article II hereof. 
 “Indemnifying
Party” means either one or more members of the Partnership Group or Oasis, as the case may be, each in its capacity as a party from whom indemnification may be required in accordance with Article II hereof. 

  
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 “Initial Term” is defined in Section 5.5. 

“License” is defined in Section 3.1. 

“Limited Partner” is defined in the Partnership Agreement. 

“Losses” means all losses, damages, liabilities, injuries (including, without limitation, physical injury and death), claims,
demands, causes of action, judgments, settlements, fines, penalties, costs and expenses of any and every kind or character (including, without limitation, court costs and reasonable attorneys’ and experts’ fees). 

“Marks” is defined in Section 3.1. 

“Mediation Notice” is defined in Section 5.2(b). 

“Mirada” is defined in Section 2.2(d). 

“Name” is defined in Section 3.1. 

“Oasis Entities” means Oasis and any Person controlled, directly or indirectly, by Oasis other than the General Partner or a
member of the Partnership Group; and an “Oasis Entity” means any of the Oasis Entities. 
 “OPNA” means
Oasis Petroleum North America LLC, a Delaware limited liability company, and an Oasis Entity. 
 “Partnership Agreement”
means the Amended and Restated Agreement of Limited Partnership of Oasis Midstream Partners LP, dated as of the Closing Date, as such agreement is in effect on the Closing Date, to which reference is hereby made for all purposes of this Agreement.

 “Partnership Assets” means the assets conveyed, contributed or otherwise transferred, directly or indirectly (including
through the transfer of equity interests), or intended to be conveyed, contributed or otherwise transferred, to the Partnership Group pursuant to the Contribution Agreement, including, without limitation, gathering pipelines, processing facilities,
disposal systems, offices and related equipment and real estate. 
 “Partnership Group” means the Partnership and its
Subsidiaries treated as a single consolidated entity. 
 “Partnership Group Member” means any member of the Partnership
Group. 
 “Party” and “Parties” are defined in the introduction to this Agreement. 

“Person” means an individual or a corporation, firm, limited liability company, partnership, joint venture, trust,
unincorporated organization, association, government agency or political subdivision thereof or other entity. 
 “Proposed
Transaction” is defined in Section 4.2(a). 

  
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 “Release” means any depositing, spilling, leaking, pumping, pouring, placing,
emitting, discarding, abandoning, emptying, discharging, migrating, injecting, escaping, leaching, dumping or disposing into the environment. 

“Representatives” is defined in Section 5.1(a). 

“Retained Assets” means the interests, assets and investments owned by the Oasis Entities as of the Closing Date that were
not conveyed, contributed or otherwise transferred to the Partnership Group pursuant to the Contribution Agreement; provided, however, that any Retained Asset shall cease to be a Retained Asset upon its conveyance, contribution or
transfer to the Partnership Group after the date thereof. 
 “ROFO Assets” shall mean the assets included on Schedule
I hereto, and a “ROFO Asset” means any of the ROFO Assets. 
 “ROFO Notice” is defined in Section
4.2(a). 
 “ROFO Response” is defined in Section 4.2(a). 

“ROFO Response Deadline” is defined in Section 4.2(a). 

“Services and Secondment Agreement” means that certain Services and Secondment Agreement, dated as of the Closing Date, by
and between the Partnership and Oasis. 
 “Subsidiary” means, with respect to any Person, (a) a corporation of which
more than 50% of the voting power of shares entitled (without regard to the occurrence of any contingency) to vote in the election of directors or other governing body of such corporation is owned, directly or indirectly, at the date of
determination, by such Person, by one or more Subsidiaries of such Person or a combination thereof, (b) a partnership (whether general or limited) in which such Person or a Subsidiary of such Person is, at the date of determination, a general
or limited partner of such partnership or (c) any other Person (other than a corporation or a partnership) in which such Person, one or more Subsidiaries of such Person, or a combination thereof, directly or indirectly, at the date of
determination, has (i) at least a majority or controlling interest, including as a result of ownership of more than 50% of general partner or managing member control rights or (ii) the power to elect or direct the election of a majority of
the directors or other governing body of such Person. For the avoidance of doubt, Bighorn DevCo LLC, Bobcat DevCo LLC and Beartooth DevCo LLC shall be deemed Subsidiaries of the Partnership. 

“Toxic Tort” means a claim or cause of action alleging personal injury or property damage incurred by the plaintiff that is
alleged to have been caused by exposure to, or contamination by, Hazardous Substances that have been Released into the environment by or as a result of the actions or omissions of the defendant. 

“Transfer” means to, directly or indirectly, sell, assign, lease, convey, transfer or otherwise dispose of, whether in one or
a series of transactions; provided, however, that in no event shall a Change of Control of Oasis be deemed a Transfer. 

  
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 “Voluntary Cleanup Program” means a program of the United States or a state of
the United States enacted pursuant to an Environmental Law that provides for a mechanism for the written approval of, or authorization to conduct, voluntary investigatory and remedial action for the clean-up,
removal or remediation of Hazardous Substances that exceed actionable levels established pursuant to Environmental Law. 
 “Voting
Securities” of a Person means securities of any class of such Person entitling the holders thereof to vote in the election of, or to appoint, members of the board of directors or other similar governing body of the Person. 

ARTICLE II 

Indemnification 

2.1    Environmental Indemnification. 

(a)    Subject to the provisions of Sections 2.4 and 2.5, Oasis shall indemnify, defend and hold harmless the
Partnership Group from and against any Covered Environmental Losses suffered or incurred by the Partnership Group and relating to the Partnership Assets, but only to the extent that the violation, event, action, omission, occurrence or condition
giving rise to such Covered Environmental Losses occurred or existed on or before the Closing Date. 

(b)    Notwithstanding the foregoing, in no event shall Oasis have any indemnification obligations under this Agreement
with respect to any claims based on additions to or modifications of Environmental Laws enacted or promulgated after the Closing Date. 

2.2    Additional Indemnification. In addition to and not in limitation of the indemnification provided under
Section 2.1(a), subject to the provisions of Sections 2.4 and 2.5, Oasis shall indemnify, defend and hold harmless the Partnership Group from and against any Losses suffered or incurred by the Partnership Group and related to or arising
out of or in connection with: 
 (a)    any failure of the Partnership Group to be the owner on the Closing Date of
valid and indefeasible easement rights, rights-of-way, leasehold and/or fee ownership interests in and to the lands on which any Partnership Assets are located to the
extent that such failure renders the Partnership Group liable to a third party or unable to use or operate the Partnership Assets in substantially the same manner as they were used or operated immediately prior to the Closing Date; 

(b)    the failure of the Partnership Group to have on the Closing Date any consent, license, permit or approval necessary
to allow the Partnership Group to own or operate the Partnership Assets in substantially the same manner that the Partnership Assets were owned or operated immediately prior to the Closing Date; 

(c)    any event or condition associated with the Retained Assets, whether occurring before, on or after the Closing Date;


  
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 (d)    any and all claims asserted, or which could have been asserted,
whether known or unknown, in law or at equity, by Mirada Energy, LLC, Mirada Wild Basin Holding Company, LLC and Mirada Energy Fund I, LLC (collectively, “Mirada”) against Oasis, OPNA and OMS and set forth in Mirada Energy, LLC,
et al. v. Oasis Petroleum North America LLC, et al.; in the 334th Judicial District Court of Harris County, Texas; Case Number 2017-19911, including claims for monetary damages and declaratory relief; and 

(e)    any federal, state or local income tax liabilities attributable to the ownership or operation of the Partnership
Assets prior to the Closing Date, including (i) any income tax liabilities of Oasis that may result from the consummation of the formation transactions for the Partnership Group and (ii) any income tax liabilities arising under Treasury
Regulation Section 1.1502-6 and any similar provision of applicable state, local or foreign law, or by contract, as successor, transferee or otherwise, and which income tax liability is attributable to
having been a member of any consolidated, combined or unitary group prior to the Closing Date. 

2.3    Indemnification by the Partnership Group. Subject to the provisions of Sections 2.4 and 2.5, the
Partnership Group shall indemnify, defend and hold harmless the Oasis Entities from and against any Losses (including Covered Environmental Losses) suffered or incurred by the Oasis Entities and related to or arising out of or in connection
with the ownership or operation of the Partnership Assets after the Closing Date, except to the extent that any member of the Partnership Group is entitled to indemnification hereunder or unless such indemnification would not be permitted under the
Partnership Agreement. 
 2.4    Limitations Regarding Indemnification. 

(a)    The indemnification obligation set forth in Sections 2.1(a), 2.2(a) and 2.2(b) shall terminate on the third
anniversary of the Closing Date and the indemnification obligation set forth in Section 2.2(e) shall terminate on the 30th day after the termination of any applicable statute of limitations;
provided, however, that any such indemnification obligation with respect to a Loss shall survive the time at which it would otherwise expire pursuant to this Section 2.4(a) if notice of such Loss is properly given to Oasis prior
to such time. The indemnification obligations set forth in Sections 2.2(c), 2.2(d) and 2.3 shall survive indefinitely. 

(b)    The aggregate liability of Oasis under Sections 2.1(a), 2.2(a) and 2.2(b) shall not exceed $15 million.

 (c)    No claims may be made against Oasis for indemnification pursuant to Section 2.1(a) unless the aggregate
dollar amount of the Losses suffered or incurred by the Partnership Group exceeds $100,000, after which Oasis shall be liable for the full amount of such claims in excess of $100,000, subject to the limitations of Sections 2.4(a) and 2.4(b).

 (d)    In no event shall Oasis be obligated to the Partnership Group under Section 2.1(a) or Section 2.2
for any Losses or income tax liabilities to the extent (i) any insurance proceeds are realized by the Partnership Group, such correlative benefit to be net of any incremental insurance premium that becomes due and payable by the Partnership
Group as a result of such claim or (ii) any amounts are recovered by the Partnership Group from third persons. 

  
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 2.5    Indemnification Procedures. 

(a)    The Indemnified Party agrees that promptly after it becomes aware of facts giving rise to a claim for
indemnification under this Article II, it will provide notice thereof in writing to the Indemnifying Party, specifying the nature of and specific basis for such claim; provided, however, that the Indemnified Party shall not submit
claims more frequently than once a calendar quarter (or twice in the case of the calendar quarter in which the applicable indemnity coverage under this Agreement expires) unless such Indemnified Party believes in good faith that such a delay in
notice to the Indemnifying Party would cause actual prejudice to the Indemnifying Party’s ability to defend against the applicable claim. Notwithstanding anything in this Article II to the contrary, a delay by the Indemnified Party in
notifying the Indemnifying Party shall not relieve the Indemnifying Party of its obligations under this Article II, except to the extent that such failure shall have caused actual prejudice to the Indemnifying Party’s ability to defend
against the applicable claim. 
 (b)    The Indemnifying Party shall have the right to control all aspects of the
defense of (and any counterclaims with respect to) any claims brought against the Indemnified Party that are covered by the indemnification under this Article II, including, without limitation, the selection of counsel, the determination of
whether to appeal any decision of any court and the settlement of any such matter or any issues relating thereto; provided, however, that no such settlement shall be entered into without the consent of the Indemnified Party unless it
includes a full release of the Indemnified Party from such matter or issues, as the case may be, and does not include any admission of fault, culpability or a failure to act, by or on behalf of such Indemnified Party. 

(c)    The Indemnified Party agrees to cooperate fully with the Indemnifying Party with respect to all aspects of the
defense of any claims covered by the indemnification under this Article II, including, without limitation, the prompt furnishing to the Indemnifying Party of any correspondence or other notice relating thereto that the Indemnified Party may
receive, permitting the name of the Indemnified Party to be utilized in connection with such defense, the making available to the Indemnifying Party of any files, records or other information of the Indemnified Party that the Indemnifying Party
considers relevant to such defense and the making available to the Indemnifying Party, at no cost to the Indemnifying Party, of any employees of the Indemnified Party; provided, however, that in connection therewith the Indemnifying
Party agrees to use commercially reasonable efforts to minimize the impact thereof on the operations of the Indemnified Party and further agrees to maintain the confidentiality of all files, records and other information furnished by the Indemnified
Party pursuant to this Section 2.5. In no event shall the obligation of the Indemnified Party to cooperate with the Indemnifying Party as set forth in the immediately preceding sentence be construed as imposing upon the Indemnified Party an
obligation to hire and pay for counsel in connection with the defense of any claims covered by the indemnification set forth in this Article II; provided, however, that the Indemnified Party may, at its own option, cost and
expense, hire and pay for counsel in connection with any such defense. The Indemnifying Party agrees to keep any such counsel hired by the Indemnified Party informed as to the status of any such defense, but the Indemnifying Party shall have the
right to retain sole control over such defense. 

  
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 (d)    The date on which the Indemnifying Party receives notification of a
claim for indemnification shall determine whether such claim is timely made. 
 (e)    NOTWITHSTANDING ANY PROVISION OF
THIS AGREEMENT, IN NO EVENT WILL ANY PARTY BE LIABLE TO ANY OTHER PARTY OR INDEMNIFIED PARTY WITH RESPECT TO ANY CLAIM ARISING OUT OF OR RELATING TO THIS AGREEMENT FOR ANY LOST OR PROSPECTIVE PROFITS OR ANY OTHER SPECIAL, CONSEQUENTIAL,
INCIDENTAL OR INDIRECT LOSSES OR DAMAGES FROM ITS PERFORMANCE UNDER THIS AGREEMENT OR FOR ANY FAILURE OR PERFORMANCE HEREUNDER OR RELATED HERETO, WHETHER ARISING OUT OF BREACH OF CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR OTHERWISE, EXCEPT
FOR ANY SUCH DAMAGES RECOVERED BY ANY THIRD PARTY AGAINST ANY PARTY IN RESPECT OF WHICH SUCH PARTY WOULD OTHERWISE BE ENTITLED TO INDEMNIFICATION PURSUANT TO THIS ARTICLE II, PROVIDED THAT NO PARTY WILL BE ENTITLED TO INDEMNIFICATION FOR ANY DAMAGES
THAT ARE CONTRARY TO APPLICABLE LAW. 
 ARTICLE III 

License of Name and Marks 

3.1    Grant of License. Subject to the terms and conditions set forth in this Agreement, Oasis hereby grants and
conveys to each of the entities currently or hereafter comprising a part of the Partnership Group a nontransferable, nonexclusive, non-sublicensable, royalty-free right and license (“License”) to use, solely in the United States,
during the term of this Agreement and solely in the conduct of the business of each entity comprising the Partnership Group, the name “Oasis” (the “Name”) and any other trademarks, trade names, logos and/or service marks,
whether registered or unregistered, owned by Oasis which contain the Name (collectively, the “Marks”). 

3.2    Ownership and Quality. 

(a)    The Partnership agrees that Oasis is the sole owner of the Marks, and all right, title and interest, including
intellectual property rights, in and to the Name and the Marks and the goodwill relating thereto—including any goodwill accrued as a result of use of the Name or the Marks by any entity comprising the Partnership Group—shall remain solely
vested in and inure to the sole benefit of Oasis, and any successor thereto, both during the term of this License and thereafter, and the Partnership further agrees, and agrees to cause the other members of the Partnership Group, never to challenge,
contest or question the validity or enforceability of the Name and Marks, any intellectual property rights thereto, any registration thereof, and/or Oasis’s sole ownership of the Name and Marks. In connection with the use of the Name and the
Marks, the Partnership and any other member of the Partnership Group shall not in any manner represent that they have any right, title or interest, including intellectual property rights, in the Name or the Marks or registration thereof except as
set forth herein, and the Partnership, on behalf of itself and the other members of the Partnership Group, acknowledges that the use of the Name and the Marks shall not create in Partnership or other members of the Partnership Group any right, title
or interest, including intellectual property rights, in or to the Name or the Marks, other than the 

  
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limited license granted in Section 3.1, and all use of the Name and the Marks by the Partnership or any other member of the Partnership Group, shall inure solely to the
benefit of Oasis. In addition, the Partnership and any other member of the Partnership Group shall not register or attempt to register the Name or the Marks, or any confusingly similar trademarks, trade names, logos and/or service marks in any
jurisdiction. The sole right and authority to register the Name or the Marks, or any confusingly similar trademarks, trade names, logos and/or service marks shall remain vested in Oasis. 

(b)    The Partnership agrees, and agrees to cause the other members of the Partnership Group, to use the Name and Marks
in accordance with such quality standards and trademark usage guidelines established by or for Oasis and communicated to the Partnership from time to time. The products and services offered by the members of the Partnership Group shall immediately
before the Closing Date be of a quality that is acceptable to Oasis. In the event any entity comprising a part of the Partnership Group or the Partnership is determined by Oasis to be using the Name or a Mark in a manner not in accordance with
quality standards or trademark usage guidelines established by Oasis, Oasis shall provide written notice of such unacceptable use including the reason why applicable quality standards or trademark usage guidelines are not being met. If acceptable
proof that quality standards or trademark usage guidelines are met is not provided to Oasis within thirty (30) days of such notice, the entity’s License to use the Name and the Marks shall immediately terminate and shall not be renewed
absent written authorization from Oasis. 
 3.3    In the Event of Termination. In the event of termination of
this Agreement, pursuant to Section 5.6 or otherwise, or the termination of the License, the Partnership Group’s right to utilize or possess the Name and Marks licensed under this Agreement shall automatically cease, and no later than
ninety (90) days following such termination, (a) the Partnership Group shall cease all use of the Name and Marks and shall adopt trademarks, service marks and trade names that are not confusingly similar to any of the Name and Marks,
provided, however, that any use of the Name and Marks during such 90-day period shall continue to be subject to Section 3.2(b), (b) at Oasis’s request, the Partnership Group shall
destroy all materials and content upon which any of the Name and Marks appear (or otherwise modify such materials and content such that the use or appearance of the Name and Marks ceases) that are under the Partnership Group’s control, and
certify in writing to Oasis that the Partnership Group has done so and (c) each member of the Partnership Group shall change its legal name so that there is no reference therein to the name “Oasis,” any name or d/b/a then used by any
Oasis Entity or any variation, derivation or abbreviation thereof, and in connection therewith, shall make all necessary filings of certificates with the Secretary of State of the State of Delaware and to otherwise amend its organizational documents
by such date. The Partnership Group agrees that it will not, at any time after termination, market, promote, advertise or offer for sale any products, goods or services utilizing any of the Name or Marks, or otherwise hold itself out as having any
affiliation with Oasis. 

  
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 ARTICLE IV 

Right of First Offer 

4.1    Right of First Offer to Purchase Certain Assets Retained by the Oasis Entities. 

(a)    Oasis hereby grants to the Partnership Group a right of first offer on any ROFO Asset to the extent that any Oasis
Entity proposes to Transfer any ROFO Asset (other than to an Affiliate of the Oasis Entities who agrees in writing that such ROFO Asset remains subject to the provisions of this Article IV and such Affiliate assumes the obligations under this
Article IV with respect to such ROFO Asset) or enters into any agreement relating to such Transfer or proposed Transfer of any ROFO Asset. 

(b)    The Parties acknowledge that any Transfer of ROFO Assets pursuant to the Partnership Group’s right of first
offer is subject to the terms of all existing agreements with respect to the ROFO Assets and shall be subject to and conditioned on the obtaining of any and all necessary consents of security holders, governmental authorities, lenders or other third
parties; provided, however, that Oasis represents and warrants that, to its knowledge after reasonable investigation, there are no terms in such existing agreements that would materially impair the rights granted to the
Partnership Group pursuant to this Article IV with respect to any ROFO Asset. 
 4.2    Procedures.

 (a)    If an Oasis Entity proposes to Transfer any applicable ROFO Asset (other than to an Affiliate, in accordance
with Section 4.1(a)) (a “Proposed Transaction”), Oasis shall or shall cause such Oasis Entity to, prior to entering into any such Proposed Transaction, first give notice in writing to the Partnership Group (the “ROFO
Notice”) of its intention to enter into such Proposed Transaction. The ROFO Notice shall include (i) a description of the ROFO Assets subject to the Proposed Transaction and (ii) any material terms, conditions and details as would
be necessary for a Partnership Group Member to make a responsive offer to enter into the Proposed Transaction with the applicable Oasis Entity, which terms, conditions and details shall at a minimum include any terms, condition(s) or details that
such Oasis Entity would propose to provide to non-Affiliates in connection with the Proposed Transaction. If a Partnership Group Member decides to purchase the ROFO Assets, the applicable Partnership Group
Member shall have thirty (30) days following receipt of the ROFO Notice (the “ROFO Response Deadline”) to propose an offer to enter into the Proposed Transaction with such Oasis Entity (the “ROFO Response”).
The ROFO Response shall set forth the terms and conditions (including, without limitation, the purchase price the applicable Partnership Group Member proposes to pay for the ROFO Asset and the other terms of the purchase including, if requested by
an Oasis Entity, the terms on which the Partnership Group Member will provide services to the Oasis Entity to enable the Oasis Entity to utilize the applicable ROFO Asset) pursuant to which the applicable Partnership Group Member would be willing to
enter into a binding agreement for the Proposed Transaction. If no ROFO Response is delivered by the Partnership Group by the ROFO Response Deadline, then the Partnership Group shall be deemed to have decided not to purchase the ROFO Asset and to
have waived its right of first offer with respect to such ROFO Asset, and the Oasis Entity shall be free to enter into the Proposed Transaction with any third party on terms and conditions determined in the sole discretion of the applicable Oasis
Entity. 
 (b)    If a Partnership Group Member submits a ROFO response, the Oasis Entity shall negotiate in good faith
with the Partnership Group Member for a period of thirty (30) days in order to give the Partnership Group Member an opportunity to enter into a letter of intent or definitive documentation for the purchase and sale of such ROFO Asset on terms
that are 

  
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mutually acceptable to the Oasis Entity and the Partnership Group Member, and, if applicable, the Partnership Group Member shall use commercially reasonable efforts to enter into an agreement
with the Oasis Entity setting forth the terms on which the Partnership Group Member will provide services to the Oasis Entity to enable the Oasis Entity to utilize the ROFO Asset. Unless otherwise agreed between Oasis and the applicable Partnership
Group Member, the terms of the purchase and sale agreement will include the following: 
 (i)    the Partnership Group
Member will deliver the agreed purchase price (in cash, Partnership Securities, an interest-bearing promissory note or any combination thereof); 

(ii)    Oasis will represent that it has title to the ROFO Assets that is sufficient to operate the ROFO Assets in
accordance with their intended and historical use, subject to (A) all recorded matters and all physical conditions in existence on the closing date for the purchase of the applicable ROFO Asset and (B) any other such matters as the
Partnership Group Member may approve. If the Partnership desires to obtain any title insurance with respect to the ROFO Asset, the full cost and expense of obtaining the same (including but not limited to the cost of title examination, document
duplication and policy premium) shall be borne by the Partnership Group Member; 
 (iii)    Oasis will grant to the
Partnership Group Member the right, exercisable at the Partnership Group Member’s risk and expense prior to the delivery of the ROFO Response, to make such surveys, tests and inspections of the ROFO Asset as the Partnership Group Member may
deem desirable, so long as such surveys, tests or inspections occur during normal business hours and do not damage the ROFO Asset or interfere with the activities of Oasis; 

(iv)    the purchase and sale agreement shall terminate if the closing date for the purchase of the ROFO Asset does not
occur on or before the date that is 180 days following receipt by Oasis of the ROFO Response pursuant to Section 4.2(a); 

(v)    Oasis and the applicable Partnership Group Member shall use commercially reasonable efforts to do or cause to be
done all things that may be reasonably necessary or advisable to effectuate the consummation of any transactions contemplated by the purchase and sale agreement, including causing its respective Affiliates to execute, deliver and perform all
documents, notices, amendments, certificates, instruments and consents required in connection therewith; and 

(vi)    the applicable Partnership Group Member shall not have any obligation to buy the applicable ROFO Asset if any of
the consents referred to in Section 4.1(b) have not been obtained and the failure to obtain such consent would materially interfere with the use made and proposed to be made of the applicable ROFO Asset by the Partnership Group Member. 

(c)    If the Oasis Entity and the Partnership Group Member have not entered into a letter of intent or a definitive
purchase and sale agreement with respect to such ROFO Asset within the 30-day period, or if any such letter of intent or agreement is entered into but 

  
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subsequently terminated, the Oasis Entity may, at any time during the succeeding 150-day period, enter into a definitive transfer agreement with any third
party with respect to such ROFO Asset on terms and conditions that, when taken as a whole, are superior, in the good faith determination of such Oasis Entity, to those set forth in the last written offer proposed by the Partnership Group Member
during negotiations between the Partnership Group Member and the Oasis Entity pursuant to Section 4.2(b), and may Transfer the ROFO Asset pursuant to such transfer agreement. If Oasis or any Oasis Entity does not enter into
a definitive agreement with a third party with respect to the Proposed Transaction within such 150-day period, Oasis shall, or shall cause such Oasis Entity to, comply with the provisions of this Article
IV again prior to entering into any Proposed Transaction with respect to such ROFO Asset. 
 (d)     If requested by
the Partnership Group and at the Partnership Group’s expense, Oasis shall use commercially reasonable efforts to provide or prepare, or cause to be provided or prepared, any audited or unaudited financial statements with respect to any ROFO
Assets Transferred pursuant to this Article IV to the extent required under Regulation S-X promulgated by the Securities and Exchange Commission or any successor statute. 

ARTICLE V 

Miscellaneous 

5.1    Confidentiality. 

(a)    From and after the Closing Date, each of the Parties shall hold, and shall undertake commercially reasonable efforts
to cause their respective Subsidiaries and Affiliates and its and their directors, officers, employees, agents, consultants, advisors and other representatives (collectively, “Representatives”) to hold all Confidential Information
of the other Parties in strict confidence, with at least the same degree of care that applies to such Party’s own confidential and proprietary information (and in no event less than a reasonable degree of care) and shall not use such
Confidential Information except as reasonably necessary for the conduct of the business of a Party, and shall not release or disclose such Confidential Information to any other Person, except its Representatives on a
need-to-know basis under confidentiality obligations no less restrictive than in this Agreement, or except as required by applicable law. Each Party shall be responsible
for any breach of this section by any of its Representatives. 
 (b)    If a Party receives a subpoena or other demand
for disclosure of Confidential Information received from any other Party or must disclose to a governmental authority any Confidential Information received from such other Party in order to obtain or maintain any required governmental approval, the
receiving Party shall, to the extent legally permissible, provide notice to the providing Party before disclosing such Confidential Information. Upon receipt of such notice, the providing Party shall promptly either seek an appropriate protective
order, waive the receiving Party’s confidentiality obligations hereunder to the extent necessary to permit the receiving Party to respond to the demand, or otherwise fully satisfy the subpoena or demand or the requirements of the applicable
governmental authority. If the receiving Party is legally compelled to disclose such Confidential Information or if the providing Party does not promptly respond as contemplated by this section, the receiving Party may disclose that portion of
Confidential Information covered by the notice or demand. 

  
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 (c)    Each Party acknowledges that (i) the disclosing Party would not
have an adequate remedy at law for the breach by the receiving Party of any one or more of the covenants contained in this Section 5.1 and (ii) Oasis would not have an adequate remedy at law for the breach of any one or more of the
covenants of the Partnership Group contained in Article III, and agrees that, in the event of such breach, the disclosing Party or Oasis, respectively, may, in addition to the other remedies that may be available to it, apply to a court for an
injunction to prevent any further breaches and to enforce specifically the terms and provisions of this Agreement. Notwithstanding any other section hereof, to the extent permitted by applicable law, the provisions of this Section 5.1 and
Article III shall survive the expiration or termination of this Agreement. 
 5.2    Choice of Law; Mediation;
Submission to Jurisdiction. 
 (a)    This Agreement shall be subject to and governed by the laws of the State of
Delaware, excluding any conflicts-of-law rule or principle that might refer the construction or interpretation of this Agreement to the laws of another state. EACH OF
THE PARTIES HERETO AGREES THAT THIS AGREEMENT INVOLVES AT LEAST U.S. $100,000.00 AND THAT THIS AGREEMENT HAS BEEN ENTERED INTO IN EXPRESS RELIANCE UPON 6 Del. C. § 2708. EACH OF THE PARTIES HERETO IRREVOCABLY AND UNCONDITIONALLY AGREES
(i) TO BE SUBJECT TO THE JURISDICTION OF THE COURTS OF THE STATE OF DELAWARE AND OF THE FEDERAL COURTS SITTING IN THE STATE OF DELAWARE AND (ii) TO THE EXTENT SUCH PARTY IS NOT OTHERWISE SUBJECT TO SERVICE OF PROCESS IN THE STATE OF
DELAWARE, TO APPOINT AND MAINTAIN AN AGENT IN THE STATE OF DELAWARE AS SUCH PARTY’S AGENT FOR ACCEPTANCE OF LEGAL PROCESS AND TO NOTIFY THE OTHER PARTY OF THE NAME AND ADDRESS OF SUCH AGENT. 

(b)    If the Parties cannot resolve any dispute or claim arising under this Agreement, then no earlier than ten
(10) days nor more than sixty (60) days following written notice to the other Parties, any Party may initiate mandatory, non-binding mediation hereunder by giving a notice of mediation (a
“Mediation Notice”) to the other Parties to the dispute or claim. In connection with any mediation pursuant to this Section5.2, the mediator shall be jointly appointed by the Parties to the dispute or claim and the mediation shall
be conducted in Houston, Texas unless otherwise agreed to by the Parties to the dispute or claim. All costs and expenses of the mediator appointed pursuant to this section shall be shared equally by the Parties to the dispute or claim. The
then-current Model ADR Procedures for Mediation of Business Disputes of the Center for Public Resources, Inc., either as written or as modified by mutual agreement of the Parties to the dispute or claim, shall govern any mediation pursuant to this
section. In the mediation, each Party to the dispute or claim shall be represented by one or more senior representatives who shall have authority to resolve any disputes. If a dispute or claim has not been resolved within 30 days after the receipt
of the Mediation Notice by a Party, then any Party to the dispute or claim may refer the resolution of the dispute or claim to litigation. 

  
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 (c)    Subject to Section 5.2(b), each Party agrees that it shall bring any
action or proceeding in respect of any claim arising out of or related to this Agreement, whether in tort or contract or at law or in equity, exclusively in any federal or state courts located in Delaware and (i) irrevocably submits to the
exclusive jurisdiction of such courts, (ii) waives any objection to laying venue in any such action or proceeding in such courts, (iii) waives any objection that such courts are an inconvenient forum or do not have jurisdiction over it and
(iv) agrees that, to the fullest extent permitted by law, service of process upon it may be effected by mailing a copy thereof by registered or certified mail (or any substantially similar form of mail), postage prepaid, to it at its address
specified in Section 5.3. The foregoing consents to jurisdiction and service of process shall not constitute general consents to service of process in the State of Delaware for any purpose except as provided herein and shall not be deemed to
confer rights on any Person other than the Parties. 
 5.3    Notice. All notices or requests or consents
provided for by, or permitted to be given pursuant to, this Agreement must be in writing and must be given by depositing same in the United States mail, addressed to the Person to be notified, postage-paid and registered or certified with return
receipt requested or by delivering such notice in person, by overnight delivery service or by facsimile to such Party. Notice given by personal delivery or mail shall be effective upon actual receipt. Notice given by facsimile shall be effective
upon actual receipt if received during the recipient’s normal business hours or at the beginning of the recipient’s next business day after receipt if not received during the recipient’s normal business hours. All notices to be sent
to a Party pursuant to this Agreement shall be sent to or made at the address set forth below or at such other address as such Party may stipulate to the other Parties in the manner provided in this Section 5.3. 

If to the Oasis Entities: 

Oasis Petroleum Inc. 
 1001
Fannin Street, Suite 1500 
 Houston, Texas 77002 

Attention: Chief Financial Officer 

Facsimile: (281) 404-9501 

If to the Partnership Group: 

Oasis Midstream Partners LP 
 c/o
OMP GP LLC 
 1001 Fannin Street, Suite 1500 

Houston, Texas 77002 
 Attention:
General Counsel 
 Facsimile: (281) 404-9501 

5.4    Entire Agreement. This Agreement, together with Services and Secondment Agreement and the Partnership
Agreement, constitute the entire agreement of the Parties relating to the matters contained herein, superseding all prior contracts or agreements, whether oral or written, relating to the matters contained herein. 

  
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 5.5    Term. The initial term of this Agreement will be for a period
of ten (10) years, commencing on the Closing Date and ending on the tenth anniversary of the Closing Date (“Initial Term”). At the conclusion of the Initial Term, this Agreement will automatically extend from year-to-year, unless terminated by the Partnership or the General Partner with at least ninety (90) days’ notice prior to the end of such term, as extended. 

5.6    Termination of Agreement. Notwithstanding any other provision of this Agreement, if a Change of Control of
the General Partner or the Partnership occurs, or the General Partner is removed as the general partner of the Partnership, then this Agreement, other than the provisions set forth in Section 3.3, Article II and this Article V, may at any
time thereafter be terminated by Oasis or the Partnership by written notice to the other Parties. 
 5.7    Amendment
or Modification. This Agreement may be amended or modified from time to time only by the written agreement of all the Parties hereto. Each such instrument shall be reduced to writing and shall be designated on its face an “Amendment”
or an “Addendum” to this Agreement. 
 5.8    Assignment. No Party shall have the right to assign its
rights or obligations under this Agreement without the consent of the other Parties hereto. 

5.9    Counterparts. This Agreement may be executed in any number of counterparts with the same effect as if all
signatory parties had signed the same document. All counterparts shall be construed together and shall constitute one and the same instrument. Delivery of an executed signature page of this Agreement by facsimile transmission or in portable document
format (.pdf) shall be effective as delivery of a manually executed counterpart hereof. 
 5.10    Severability.
If any provision of this Agreement shall be held invalid or unenforceable by a court or regulatory body of competent jurisdiction, the remainder of this Agreement shall remain in full force and effect. 

5.11    Further Assurances. In connection with this Agreement and all transactions contemplated by this Agreement,
each signatory party hereto agrees to execute and deliver such additional documents and instruments and to perform such additional acts as may be necessary or appropriate to effectuate, carry out and perform all of the terms, provisions and
conditions of this Agreement and all such transactions. 
 5.12    Rights of Limited Partners. The provisions of
this Agreement are enforceable solely by the Parties to this Agreement, and no Limited Partner of the Partnership shall have the right, separate and apart from the Partnership, to enforce any provision of this Agreement or to compel any Party to
this Agreement to comply with the terms of this Agreement. 
 [Signature page follows] 

 

  
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 IN WITNESS WHEREOF, the Parties have executed this Agreement on, and effective as of, the
Closing Date. 
  

			
	OASIS PETROLEUM INC.
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	OASIS PETROLEUM LLC
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	OMS HOLDINGS LLC
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	OASIS MIDSTREAM SERVICES LLC
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	OASIS MIDSTREAM PARTNERS LP
		
	By:	 	OMP GP LLC, its general partner
		
	By:	 	  

	Name:	 	
	Title:	 	


 Signature Page to Omnibus Agreement 









			
	OMP GP LLC
		
	By:	 	  

	Name:	 	
	Title:	 	


  

			
	OMP OPERATING LLC


 
			
		
	By:	 	  

	Name:	 	
	Title:	 	


 Signature Page to Omnibus Agreement 








 Schedule I 
  

			
	 ROFO Asset
	  	 Owner

	1. 90% non-controlling interest in Bobcat DevCo LLC and 60% non-controlling interest in Beartooth DevCo LLC	  	Oasis Midstream Services LLC
		
	2. Any other midstream assets that Oasis builds with respect to its current acreage and elects to sell in the future	  	Any Oasis Entity