# ILLINOIS POWER CO

ILLINOIS POWER CO is a company headquartered in Decatur, IL, United States.

## Company overview

- **Legal name:** ILLINOIS POWER CO
- **Classification:** Company
- **Industry (SIC):** 4931 — Electric & Other Services Combined
- **Headquarters:** Decatur, IL, United States
- **Incorporated in:** IL
- **Fiscal year end:** December 31
- **SEC CIK:** 0000049816

## About

ILLINOIS POWER CO is identified in the retained SEC EDGAR snapshot dated 2026-10-14. Its SEC Central Index Key is 0000049816, and its reported industry is Electric & Other Services Combined. The retained history contains 12 filings, including 10-Q filed on 2010-11-08. Each filing retains its accession, filing date and original SEC document link. This historical evidence does not establish current registration, listing, ownership or financial condition.

## Recent SEC filings

- Form 10-Q — filed 2010-11-08 — period 2010-09-30 — FORM 10-Q
- Form 8-K — filed 2010-09-13 — period 2010-09-10 — FORM 8-K
- Form 8-K — filed 2010-09-01 — period 2010-09-01 — FORM 8-K
- Form 10-Q — filed 2010-08-09 — period 2010-06-30 — FORM 10-Q
- Form 8-K — filed 2010-08-02 — period 2010-08-02 — FORM 8-K
- Form 10-Q — filed 2010-05-10 — period 2010-03-31 — FORM 10-Q
- Form 8-K — filed 2010-04-30 — period 2010-04-27 — FORM 8-K
- Form 8-K — filed 2010-04-30 — period 2010-04-29 — FORM 8-K
- Form 8-K — filed 2010-04-16 — period 2010-04-13 — FORM 8-K
- Form 8-K — filed 2010-03-15 — period 2010-03-15 — FORM 8-K
- Form 10-K — filed 2010-02-26 — period 2009-12-31 — FORM 10-K
- Form 10-Q — filed 2009-11-09 — period 2009-09-30 — FORM 10-Q

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Updated: 2026-10-23T22:43:49Z

Canonical page: https://altss.com/profile/illinois-power-co

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