NISOURCE INC. — Investor Relations & Filings
NiSource Inc. is an energy holding company operating as a fully regulated utility. The company's core activities involve natural gas distribution and electric generation, transmission, and distribution. Through its subsidiaries, including the Columbia Gas and NIPSCO brands, NiSource serves approximately four million customers across six states. Its customer base consists of roughly 3.5 million natural gas customers and 500,000 electric customers, spanning residential, commercial, and industrial sectors. The company focuses on providing safe and reliable energy services through its two main operational segments: Gas Distribution and Electric Operations.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 10-Q - NISOURCE INC. (0001111711) (Filer) | 2026-05-06 | English | |
| 8-K - NISOURCE INC. (0001111711) (Filer) | 2026-05-06 | English | |
| ARS - NISOURCE INC. (0001111711) (Filer) | 2026-03-30 | English | |
| DEFA14A - NISOURCE INC. (0001111711) (Filer) | 2026-03-30 | English | |
| DEF 14A - NISOURCE INC. (0001111711) (Filer) | 2026-03-30 | English | |
| SCHEDULE 13G/A - NISOURCE INC. (0001111711) (Subject) | 2026-03-27 | English |
Market data
Market data not available
Price history
Peer group · Manufacture of gas; distribution of gaseous fuels through mains
| Company | Ticker | Country | Sector |
|---|---|---|---|
|
La Française de l'Energie
Multi-energy producer establishing local, low-carbon energy…
|
FDE | FR | Electricity, gas, steam and air… |
|
Latvijas Gaze
An energy company importing, storing, and selling natural a…
|
GZE1R | LV | Electricity, gas, steam and air… |
|
Lochaird Energy Inc.
Midstream energy infrastructure providing gas storage and d…
|
LEN | CA | Electricity, gas, steam and air… |
|
Mahanagar Gas Limited
Distributes CNG and PNG to domestic, commercial, and indust…
|
MGL | IN | Electricity, gas, steam and air… |
|
Mitsuuroko Group Holdings Co.,Ltd.
A diversified company in energy, power, foods, real estate,…
|
8131 | JP | Electricity, gas, steam and air… |
|
Montauk Renewables, Inc.
A renewable energy company that converts biogas into renewa…
|
MNTK | US | Electricity, gas, steam and air… |
|
NanJing Public Utilities Development Co., Ltd.
Provides city gas distribution, public transportation, and …
|
000421 | CN | Electricity, gas, steam and air… |
|
NATIONAL FUEL GAS CO
A diversified energy company with integrated natural gas an…
|
NFG | US | Electricity, gas, steam and air… |
|
National Gas and Industrialization Co.
Bottles, distributes, and transports LPG for residential an…
|
2080 | SA | Electricity, gas, steam and air… |
|
NATURELGAZ SANAYİ VE TİCARET A.Ş.
Transports and delivers CNG and LNG to customers without pi…
|
NTGAZ | TR | Electricity, gas, steam and air… |
NISOURCE INC. via the API
Pull this company's filings, identifiers, and metadata as JSON or Markdown. Authenticate with your API key, then query by company ID, ISIN, or LEI. Full schema documented in the OpenAPI spec.
Endpoints
| GET | /api/companies/30290/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=30290 | Paginated list of all filings (filterable by type, date, language) |
| GET | /api/filings/{id}/ | Single filing — metadata, document URL, processing status |
| GET | /api/filings/{id}/markdown/ | Filing content as Markdown (PDF → text/tables/figures) |
| GET | /api/isins/?company=30290 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
cURL
$ curl https://api.financialreports.eu/api/filings/?company=30290 \ -H "x-api-key: $FR_API_KEY" \ -H "Accept: application/json"
Python
import requests r = requests.get( "https://api.financialreports.eu/api/filings/", params={"company": 30290}, headers={"x-api-key": API_KEY}, ) filings = r.json()["results"]
MCP server
// MCP server URL https://mcp.financialfilings.com/mcp // Once connected, the LLM can query this company directly: "Pull the latest 5 filings for NISOURCE INC. (id: 30290)"
Report missing filing
Can't find a specific document? Let us know and we'll add it within 24 hours.