<SEC-DOCUMENT>0000899243-18-004614.txt : 20180220
<SEC-HEADER>0000899243-18-004614.hdr.sgml : 20180220
<ACCEPTANCE-DATETIME>20180220170918
ACCESSION NUMBER:		0000899243-18-004614
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20180214
FILED AS OF DATE:		20180220
DATE AS OF CHANGE:		20180220

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Forge Energy, LLC
		CENTRAL INDEX KEY:			0001731303
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18625664

	BUSINESS ADDRESS:	
		STREET 1:		15727 ANTHEM PARKWAY
		STREET 2:		SUITE 501
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78249
		BUSINESS PHONE:		2104785950

	MAIL ADDRESS:	
		STREET 1:		15727 ANTHEM PARKWAY
		STREET 2:		SUITE 501
		CITY:			SAN ANTONIO
		STATE:			TX
		ZIP:			78249

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EnCap Partners GP, LLC
		CENTRAL INDEX KEY:			0001726182
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18625665

	BUSINESS ADDRESS:	
		STREET 1:		1100 LOUISIANA STREET
		STREET 2:		SUITE 4900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77022
		BUSINESS PHONE:		7136596100

	MAIL ADDRESS:	
		STREET 1:		1100 LOUISIANA STREET
		STREET 2:		SUITE 4900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EnCap Energy Capital Fund VIII, L.P.
		CENTRAL INDEX KEY:			0001504103
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18625666

	BUSINESS ADDRESS:	
		STREET 1:		1100 LOUISIANA STREET, SUITE 4900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		713.659.6100

	MAIL ADDRESS:	
		STREET 1:		1100 LOUISIANA STREET, SUITE 4900
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Oasis Petroleum Inc.
		CENTRAL INDEX KEY:			0001486159
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1001 FANNIN STREET
		STREET 2:		SUITE 1500
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		281-404-9500

	MAIL ADDRESS:	
		STREET 1:		1001 FANNIN STREET
		STREET 2:		SUITE 1500
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>doc3.xml
<DESCRIPTION>FORM 3 SUBMISSION
<TEXT>
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<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2018-02-14</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001486159</issuerCik>
        <issuerName>Oasis Petroleum Inc.</issuerName>
        <issuerTradingSymbol>OAS</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001504103</rptOwnerCik>
            <rptOwnerName>EnCap Energy Capital Fund VIII, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1100 LOUISIANA STREET, SUITE 4900</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77002</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001726182</rptOwnerCik>
            <rptOwnerName>EnCap Partners GP, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1100 LOUISIANA STREET, SUITE 4900</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOUSTON</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>77002</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001731303</rptOwnerCik>
            <rptOwnerName>Forge Energy, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>15727 ANTHEM PARKWAY, SUITE 501</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN ANTONIO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78249</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>46000000</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On February 14, 2018, Forge Energy, LLC, a Delaware limited liability company (&quot;Forge&quot;), and the Issuer consummated the transactions contemplated by that certain Purchase and Sale Agreement by and among Forge, as Seller, and Oasis Petroleum Permian LLC, as Purchaser (&quot;Oasis Permian&quot;), and the Issuer dated December 11, 2017, pursuant to which Forge sold 20.3 thousand net acres in the Permian Basin to Oasis Permian, in exchange for approximately $463 million in cash and 46 million shares of common stock, par value $0.01 per share, of the Issuer valued at approximately $463 million as of the close of trading on December 8, 2017.</footnote>
        <footnote id="F2">Each reporting person disclaims beneficial ownership of the reported securities except to the extent of such reporting person's pecuniary interest therein, and this report shall not be deemed an admission that such reporting person is the beneficial owner of the reported securities for purposes of Section 16 or for any other purpose.</footnote>
        <footnote id="F3">These securities are held directly by Forge, a wholly-owed subsidiary of Forge Energy Holdings, LLC (&quot;Forge Holdings&quot;). EnCap Energy Capital Fund VIII, L.P. (&quot;EnCap Fund VIII&quot;) is a member of Forge Holdings that holds the right to appoint four of the seven representatives to the board of managers of Forge Holdings.  Each of the managers of Forge Holdings has one vote and decisions are made by a majority vote.  As a result, EnCap Fund VIII may be deemed to have the power to vote or direct the vote or to dispose or direct the disposition of the shares owned by Forge. EnCap Partners GP, LLC (&quot;EnCap Partners GP&quot;) is the sole general partner of EnCap Partners, LP (&quot;EnCap Partners&quot;), which is the managing member of EnCap Investments Holdings, LLC (&quot;EnCap Holdings&quot;), which is the sole member of EnCap Investments Holdings Blocker, LLC (&quot;EnCap Holdings Blocker&quot;).</footnote>
        <footnote id="F4">(Continued from Footnote 3) EnCap Holdings Blocker is the sole member of EnCap Investments GP, L.L.C. (&quot;EnCap Investments GP&quot;), which is the sole general partner of EnCap Investments L.P. (&quot;EnCap Investments LP&quot;). EnCap Investments LP is the general partner of EnCap Equity Fund VIII GP, L.P. (&quot;EnCap Fund VIII GP&quot;), the sole general partner of EnCap Fund VIII.  Therefore, EnCap Partners GP, EnCap Partners, EnCap Holdings, EnCap Holdings Blocker, EnCap Investments GP, EnCap Investments LP and EnCap Fund VIII GP may be deemed to beneficially own these securities.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>EnCap Energy Capital Fund VIII, L.P., By: EnCap Equity Fund VIII GP, L.P., its general partner, EnCap Investments L.P., its general partner, EnCap Investments GP, L.L.C, its general partner, /s/ D. Martin Phillips, Managing Partner</signatureName>
        <signatureDate>2018-02-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99
<SEQUENCE>2
<FILENAME>attachment1.htm
<DESCRIPTION>EX-99 DOCUMENT
<TEXT>
<HTML>
<HEAD>
</HEAD>
<BODY>
<PRE>
                                                                      Exhibit 99

                         Form 3 Joint Filer Information


Name:                               EnCap Partners GP, LLC

Address:                            1100 LOUISIANA STREET, SUITE 4900
                                    HOUSTON, TX 77002

Issuer & Ticket Symbol:             Oasis Petroleum Inc. [OAS]

Date of Event Requiring
Statement:                          02/14/2018

Relationship of Reporting           10% Owner
Person to Issuer:

Signature:
                                    By: /s/ D. Martin Phillips, Managing Partner
                                        ----------------------------------------

Date:                               02/20/2018


Name:                               Forge Energy, LLC

Address:                            15727 ANTHEM PARKWAY, SUITE 501
                                    SAN ANTONIO, TX 78249

Issuer & Ticket Symbol:             Oasis Petroleum Inc. [OAS]

Date of Event Requiring
Statement:                          02/14/2018

Relationship of Reporting           10% Owner
Person to Issuer:

Signature:
                                    By: /s/ Barry Winstead, President & CEO
                                        ------------------------------------

Date:                               02/20/2018

</PRE>
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</DOCUMENT>
</SEC-DOCUMENT>
