Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001111711-26-000088
Filing Date
2026-08-05
Accepted
2026-08-05 06:38:16
Documents
89
Period of Report
2026-06-30

Document Format Files

Seq Description Document Type Size
1 10-Q nix-20260630.htm   iXBRL 10-Q 2558643
2 EX-31.1 ni-ex311x20260630.htm EX-31.1 10995
3 EX-31.2 ni-ex312x20260630.htm EX-31.2 10795
4 EX-32.1 ni-ex321x20260630.htm EX-32.1 4806
5 EX-32.2 ni-ex322x20260630.htm EX-32.2 5054
  Complete submission text file 0001111711-26-000088.txt   12333202

Data Files

Seq Description Document Type Size
6 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT nix-20260630.xsd EX-101.SCH 73081
7 XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT nix-20260630_cal.xml EX-101.CAL 81553
8 XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT nix-20260630_def.xml EX-101.DEF 558129
9 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT nix-20260630_lab.xml EX-101.LAB 871507
10 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT nix-20260630_pre.xml EX-101.PRE 718596
93 EXTRACTED XBRL INSTANCE DOCUMENT nix-20260630_htm.xml XML 2053773
Mailing Address 801 EAST 86TH AVE MERRILLVILLE IN 46410-6272
Business Address 801 EAST 86TH AVE MERRILLVILLE IN 46410-6272 2196475200
NISOURCE INC. (Filer) CIK: 0001111711 (see all company filings)

EIN.: 352108964 | State of Incorp.: DE | Fiscal Year End: 1231
Type: 10-Q | Act: 34 | File No.: 001-16189 | Film No.: 261241220
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)