<SEC-DOCUMENT>0001111711-17-000067-index.html : 20171221
<SEC-HEADER>0001111711-17-000067.hdr.sgml : 20171221
<ACCEPTANCE-DATETIME>20171221162615
ACCESSION NUMBER:		0001111711-17-000067
CONFORMED SUBMISSION TYPE:	8-K
PUBLIC DOCUMENT COUNT:		3
CONFORMED PERIOD OF REPORT:	20171221
ITEM INFORMATION:		Regulation FD Disclosure
ITEM INFORMATION:		Financial Statements and Exhibits
FILED AS OF DATE:		20171221
DATE AS OF CHANGE:		20171221

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NISOURCE INC/DE
		CENTRAL INDEX KEY:			0001111711
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
		IRS NUMBER:				352108964
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		8-K
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-16189
		FILM NUMBER:		171269733

	BUSINESS ADDRESS:	
		STREET 1:		801 EAST 86TH AVE
		CITY:			MERRILLVILLE
		STATE:			IN
		ZIP:			46410-6272
		BUSINESS PHONE:		2196475200

	MAIL ADDRESS:	
		STREET 1:		801 EAST 86TH AVE
		CITY:			MERRILLVILLE
		STATE:			IN
		ZIP:			46410-6272

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NEW NISOURCE INC
		DATE OF NAME CHANGE:	20000412
</SEC-HEADER>
<DOCUMENT>
<TYPE>8-K
<SEQUENCE>1
<FILENAME>a8-kheader12212017.htm
<DESCRIPTION>8-K
<TEXT>
Document 1 - file: a8-kheader12212017.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>EX-99.1
<SEQUENCE>2
<FILENAME>ni-ex991_20171221.htm
<DESCRIPTION>EXHIBIT 99.1
<TEXT>
Document 2 - file: ni-ex991_20171221.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>nierheadera18.jpg
<TEXT>
Document 3 - file: nierheadera18.jpg

</DOCUMENT>
</SEC-DOCUMENT>