    <SEC-DOCUMENT>0001486159-18-000014-index.html : 20180322
    <SEC-HEADER>0001486159-18-000014.hdr.sgml : 20180322
    <ACCEPTANCE-DATETIME>20180322172452
    ACCESSION NUMBER:		0001486159-18-000014
    CONFORMED SUBMISSION TYPE:	PRE 14A
    PUBLIC DOCUMENT COUNT:		11
    CONFORMED PERIOD OF REPORT:	20180322
    FILED AS OF DATE:		20180322
    DATE AS OF CHANGE:		20180322

    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:		18707736

    	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>PRE 14A
    <SEQUENCE>1
    <FILENAME>a2018pre14a.htm
    <DESCRIPTION>PRE 14A
    <TEXT>
    Document 1 - file: a2018pre14a.htm

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>2
    <FILENAME>chart-acabc44915cbcac75eb.jpg
    <TEXT>
    Document 2 - file: chart-acabc44915cbcac75eb.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>3
    <FILENAME>chart-f42cb0aca830fb82e49.jpg
    <TEXT>
    Document 3 - file: chart-f42cb0aca830fb82e49.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>4
    <FILENAME>chart-f245c318c8b7b099884.jpg
    <TEXT>
    Document 4 - file: chart-f245c318c8b7b099884.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>5
    <FILENAME>image0a14.jpg
    <TEXT>
    Document 5 - file: image0a14.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>6
    <FILENAME>image1a13.jpg
    <TEXT>
    Document 6 - file: image1a13.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>7
    <FILENAME>image2a11.jpg
    <TEXT>
    Document 7 - file: image2a11.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>8
    <FILENAME>image3a07.jpg
    <TEXT>
    Document 8 - file: image3a07.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>9
    <FILENAME>image4a02.jpg
    <TEXT>
    Document 9 - file: image4a02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>10
    <FILENAME>image5a02.jpg
    <TEXT>
    Document 10 - file: image5a02.jpg

    </DOCUMENT>
    <DOCUMENT>
    <TYPE>GRAPHIC
    <SEQUENCE>11
    <FILENAME>image6.jpg
    <TEXT>
    Document 11 - file: image6.jpg

    </DOCUMENT>
    </SEC-DOCUMENT>