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Company dossier

NICOR INC

CIK 0000072020SIC 4924Natural Gas Distribution

Exchange

Entity type

operating

Fiscal year end

Dec 31

Headquarters

IL

Company overview

NICOR INC

NICOR Inc, CIK 72020, is a utilities holding company supplying natural gas and related energy services to Chicagoland households, municipalities, and industrial accounts, drawing on its long heritage in SIC 4924 natural gas distribution to manage pipelines, storage, and metering across Northern Illinois. The firm’s core offerings include reliable volumetric delivery, energy efficiency consulting, safety inspections, and infrastructure investment to maintain steady pressures and respond to demand profiles shaped by residential heating and manufacturing cycles. Institutional and high-usage commercial customers value NICOR’s operational expertise, flexible contracting, and emergency response capabilities while regulators look closely at its rate-base decisions; the Illinois Commerce Commission and federal pipeline regulators set tariff authority and enforce pipeline safety standards, leaving the company exposed to legislative changes, commodity price swings, extreme weather events, and compliance scrutiny. With the latest filing still pending, investors should continue to monitor disclosures, and they can view live SEC filings on Earnings Feed.

Source: Earnings Feed research · last updated 11/24/2025

Recent filings

Latest submissions
5 items

Monitoring

Insider owner filings
No
Insider issuer filings
Yes
Tickers on record
0

Ticker roster

No tickers on record.

Addresses

  • business

    1844 FERRY RD

    NAPERVILLE, IL, 60563

  • mailing

    PO BOX 3014

    NAPERVILLE, IL, 60566-7014