    <SEC-DOCUMENT>0001486159-20-000022-index.html : 20200320
    <SEC-HEADER>0001486159-20-000022.hdr.sgml : 20200320
    <ACCEPTANCE-DATETIME>20200320172336
    ACCESSION NUMBER:		0001486159-20-000022
    CONFORMED SUBMISSION TYPE:	PRE 14A
    PUBLIC DOCUMENT COUNT:		20
    CONFORMED PERIOD OF REPORT:	20200428
    FILED AS OF DATE:		20200320
    DATE AS OF CHANGE:		20200320

    FILER:

    	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

    	FILING VALUES:
    		FORM TYPE:		PRE 14A
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-34776
    		FILM NUMBER:		20732937

    	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>
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    <TYPE>PRE 14A
    <SEQUENCE>1
    <FILENAME>a2020pre14a.htm
    <DESCRIPTION>PRE 14A
    <TEXT>
    Document 1 - file: a2020pre14a.htm

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    <SEQUENCE>2
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    Document 2 - file: cardpage1.jpg

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    Document 3 - file: cardpage2.jpg

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    <SEQUENCE>8
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    Document 8 - file: image2.jpg

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    <SEQUENCE>9
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    <TEXT>
    Document 9 - file: image3.jpg

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    <SEQUENCE>10
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    Document 10 - file: image6.jpg

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    <SEQUENCE>11
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    Document 11 - file: image7.jpg

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    Document 12 - file: image8.jpg

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    <SEQUENCE>13
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    Document 13 - file: image9.jpg

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    <SEQUENCE>14
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    <TEXT>
    Document 14 - file: image10.jpg

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    <SEQUENCE>15
    <FILENAME>image11.jpg
    <TEXT>
    Document 15 - file: image11.jpg

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    <SEQUENCE>16
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    <TEXT>
    Document 16 - file: image12.jpg

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    <SEQUENCE>17
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    Document 17 - file: image13.jpg

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    Document 18 - file: image14.jpg

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    Document 19 - file: image15.jpg

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