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 |
|---|---|---|---|
|
TL Natural Gas Holdings Limited
Supplier of Compressed Natural Gas (CNG) to retail and whol…
|
8536 | KY | Electricity, gas, steam and air… |
|
Toell Co.,Ltd.
Provider of essential energy, water, and telecommunication …
|
3361 | JP | Electricity, gas, steam and air… |
|
TOHO GAS CO.,LTD.
An integrated energy company supplying city gas, LPG, elect…
|
9533 | JP | Electricity, gas, steam and air… |
|
TOKAI Holdings Corporation
A diversified enterprise providing energy, IT, CATV, water,…
|
3167 | JP | Electricity, gas, steam and air… |
|
TOKYO GAS CO.,LTD.
Major energy company supplying city gas, electricity, and c…
|
9531 | JP | Electricity, gas, steam and air… |
|
Towngas Smart Energy Company Limited
Major energy supplier in mainland China focused on piped ga…
|
1083 | KY | Electricity, gas, steam and air… |
|
UGI CORP /PA/
A diversified international energy distribution and service…
|
UGI | US | Electricity, gas, steam and air… |
|
UK OIL & GAS PLC
An energy developer focused on delivering large-scale hydro…
|
UKOG | GB | Electricity, gas, steam and air… |
|
Union Gas Limited
Natural gas utility managing infrastructure for storage, tr…
|
— | CA | Electricity, gas, steam and air… |
|
Venture Global, Inc.
Develops, constructs, and operates LNG export facilities on…
|
VG | US | 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.