    <SEC-DOCUMENT>0001140361-24-016758-index.html : 20240401
    <SEC-HEADER>0001140361-24-016758.hdr.sgml : 20240401
    <ACCEPTANCE-DATETIME>20240401075324
    ACCESSION NUMBER:		0001140361-24-016758
    CONFORMED SUBMISSION TYPE:	ARS
    PUBLIC DOCUMENT COUNT:		1
    CONFORMED PERIOD OF REPORT:	20231231
    FILED AS OF DATE:		20240401
    DATE AS OF CHANGE:		20240401
    EFFECTIVENESS DATE:		20240401

    FILER:

    	COMPANY DATA:
    		COMPANY CONFORMED NAME:			NISOURCE INC.
    		CENTRAL INDEX KEY:			0001111711
    		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRIC & OTHER SERVICES COMBINED [4931]
    		ORGANIZATION NAME:           	01 Energy & Transportation
    		IRS NUMBER:				352108964
    		STATE OF INCORPORATION:			DE
    		FISCAL YEAR END:			1231

    	FILING VALUES:
    		FORM TYPE:		ARS
    		SEC ACT:		1934 Act
    		SEC FILE NUMBER:	001-16189
    		FILM NUMBER:		24805596

    	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:	NISOURCE INC/DE
    		DATE OF NAME CHANGE:	20001103

    	FORMER COMPANY:
    		FORMER CONFORMED NAME:	NEW NISOURCE INC
    		DATE OF NAME CHANGE:	20000412
    </SEC-HEADER>
    <DOCUMENT>
    <TYPE>ARS
    <SEQUENCE>1
    <FILENAME>ny20014196x3_ars.pdf
    <DESCRIPTION>ARS
    <TEXT>
    Document 1 - file: ny20014196x3_ars.pdf

    </DOCUMENT>
    </SEC-DOCUMENT>