<SEC-DOCUMENT>0001193125-18-320217-index.html : 20181107
<SEC-HEADER>0001193125-18-320217.hdr.sgml : 20181107
<ACCEPTANCE-DATETIME>20181107082840
ACCESSION NUMBER:		0001193125-18-320217
CONFORMED SUBMISSION TYPE:	425
PUBLIC DOCUMENT COUNT:		28
FILED AS OF DATE:		20181107
DATE AS OF CHANGE:		20181107

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ENERGEN CORP
		CENTRAL INDEX KEY:			0000277595
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				630757759
		STATE OF INCORPORATION:			AL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		425
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-07810
		FILM NUMBER:		181164802

	BUSINESS ADDRESS:	
		STREET 1:		605 RICHARD ARRINGTON JR BLVD N
		CITY:			BIRMINGHAM
		STATE:			AL
		ZIP:			35203-2707
		BUSINESS PHONE:		2053262997

	MAIL ADDRESS:	
		STREET 1:		605 RICHARD ARRINGTON JR BLVD N
		CITY:			BIRMINGHAM
		STATE:			AL
		ZIP:			35203

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ALAGASCO INC
		DATE OF NAME CHANGE:	19851002

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Diamondback Energy, Inc.
		CENTRAL INDEX KEY:			0001539838
		STANDARD INDUSTRIAL CLASSIFICATION:	CRUDE PETROLEUM & NATURAL GAS [1311]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		425

	BUSINESS ADDRESS:	
		STREET 1:		500 WEST TEXAS
		STREET 2:		SUITE 1210
		CITY:			MIDLAND
		STATE:			TX
		ZIP:			79701
		BUSINESS PHONE:		405-463-6900

	MAIL ADDRESS:	
		STREET 1:		9400 N. BROADWAY
		STREET 2:		SUITE 700
		CITY:			OKLAHOMA CITY
		STATE:			OK
		ZIP:			73114
</SEC-HEADER>
<DOCUMENT>
<TYPE>425
<SEQUENCE>1
<FILENAME>d648067d425.htm
<DESCRIPTION>425
<TEXT>
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>2 <FILENAME>g648067page1.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 2 - file: g648067page1.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>3 <FILENAME>g648067page10.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 3 - file: g648067page10.jpg
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>10 <FILENAME>g648067page17.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 10 - file: g648067page17.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>11 <FILENAME>g648067page18.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 11 - file: g648067page18.jpg
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>19 <FILENAME>g648067page25.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 19 - file: g648067page25.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>20 <FILENAME>g648067page26.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 20 - file: g648067page26.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>21 <FILENAME>g648067page27.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 21 - file: g648067page27.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>22 <FILENAME>g648067page3.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 22 - file: g648067page3.jpg
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</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>24 <FILENAME>g648067page5.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 24 - file: g648067page5.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>25 <FILENAME>g648067page6.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 25 - file: g648067page6.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>26 <FILENAME>g648067page7.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 26 - file: g648067page7.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>27 <FILENAME>g648067page8.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 27 - file: g648067page8.jpg
</DOCUMENT> <DOCUMENT> <TYPE>GRAPHIC <SEQUENCE>28 <FILENAME>g648067page9.jpg <DESCRIPTION>GRAPHIC <TEXT> Document 28 - file: g648067page9.jpg
</DOCUMENT> </SEC-DOCUMENT>