# Filing Detail

Form 10-Q - Quarterly report [Sections 13 or 15(d)]:
SEC Accession No. 0001111711-25-000036
Filing Date
2025-08-06
Accepted
2025-08-06 06:36:43
Documents
91
Period of Report
2025-06-30

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | 10-Q | nix-20250630.htm iXBRL | 10-Q | 2535681
2 | EX-31.1 | ni-ex311x20250630.htm | EX-31.1 | 11472
3 | EX-31.2 | ni-ex312x20250630.htm | EX-31.2 | 10828
4 | EX-32.1 | ni-ex321x20250630.htm | EX-32.1 | 4751
5 | EX-32.2 | ni-ex322x20250630.htm | EX-32.2 | 4999
| Complete submission text file | 0001111711-25-000036.txt |  | 11539224

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
6 | XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT | nix-20250630.xsd | EX-101.SCH | 68287
7 | XBRL TAXONOMY EXTENSION CALCULATION LINKBASE DOCUMENT | nix-20250630_cal.xml | EX-101.CAL | 82820
8 | XBRL TAXONOMY EXTENSION DEFINITION LINKBASE DOCUMENT | nix-20250630_def.xml | EX-101.DEF | 490205
9 | XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT | nix-20250630_lab.xml | EX-101.LAB | 817416
10 | XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT | nix-20250630_pre.xml | EX-101.PRE | 648668
94 | EXTRACTED XBRL INSTANCE DOCUMENT | nix-20250630_htm.xml | XML | 2018318

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.: 251187334
SIC: 4931 Electric & Other Services Combined
(CF Office: 01 Energy & Transportation)