<SEC-DOCUMENT>0000899243-18-016479-index.html : 20180613
<SEC-HEADER>0000899243-18-016479.hdr.sgml : 20180613
<ACCEPTANCE-DATETIME>20180613214540
ACCESSION NUMBER:		0000899243-18-016479
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20180611
FILED AS OF DATE:		20180613
DATE AS OF CHANGE:		20180613

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ENCAP ENERGY CAPITAL FUND VI L P
		CENTRAL INDEX KEY:			0001366397

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18897978

	BUSINESS ADDRESS:	
		STREET 1:		1100 LOUISIANA ST SUITE 3150
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		713-659-6100

	MAIL ADDRESS:	
		STREET 1:		1100 LOUISIANA ST SUITE 3150
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EnCap VI-B Acquisitions, L.P.
		CENTRAL INDEX KEY:			0001494333
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18897979

	BUSINESS ADDRESS:	
		STREET 1:		1100 LOUISIANA, SUITE 3150
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		713-659-6100

	MAIL ADDRESS:	
		STREET 1:		1100 LOUISIANA, SUITE 3150
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ENCAP ENERGY CAPITAL FUND VII LP
		CENTRAL INDEX KEY:			0001422885
		STATE OF INCORPORATION:			TX

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18897980

	BUSINESS ADDRESS:	
		STREET 1:		1100 LOUISIANA STREET
		STREET 2:		SUITE 3150
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002
		BUSINESS PHONE:		713-659-6100

	MAIL ADDRESS:	
		STREET 1:		1100 LOUISIANA STREET
		STREET 2:		SUITE 3150
		CITY:			HOUSTON
		STATE:			TX
		ZIP:			77002

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:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18897981

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EnCap Energy Capital Fund VIII Co-Investors, L.P.
		CENTRAL INDEX KEY:			0001537403
		STATE OF INCORPORATION:			TX
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18897982

	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

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:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34776
		FILM NUMBER:		18897983

	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

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>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
Document 1 - file: doc4.html
Document 1 - RAW XML: doc4.xml
</DOCUMENT> </SEC-DOCUMENT>