# EDGAR Filing Document

**Accession Number:** 0000073088
**File Stem:** 0000073088-23-000084
**Filing Date:** 2023-3
**Character Count:** 1210
**Document Hash:** 8a0f3f6bcdaa09302d7817db925a5393
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000073088-23-000084.hdr.sgml**: 20230314

**ACCESSION NUMBER**: 0000073088-23-000084

**CONFORMED SUBMISSION TYPE**: ARS

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20230314

**FILED AS OF DATE**: 20230314

**DATE AS OF CHANGE**: 20230314

**EFFECTIVENESS DATE**: 20230314

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** NORTHWESTERN CORP
- **CENTRAL INDEX KEY:** 0000073088
- **STANDARD INDUSTRIAL CLASSIFICATION:** ELECTRIC & OTHER SERVICES COMBINED [4931]
- **IRS NUMBER:** 460172280
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** ARS
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-10499
- **FILM NUMBER:** 23730463

**BUSINESS ADDRESS:**
- **STREET 1:** 3010 W 69TH STREET
- **CITY:** SIOUX FALLS
- **STATE:** SD
- **ZIP:** 57108
- **BUSINESS PHONE:** 6059782908

**MAIL ADDRESS:**
- **STREET 1:** 3010 W 69TH STREET
- **CITY:** SIOUX FALLS
- **STATE:** SD
- **ZIP:** 57108

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** NORTHWESTERN PUBLIC SERVICE CO
- **DATE OF NAME CHANGE:** 19920703

### Attached PDF Documents

**Attachment 1:** `nweannualreport.pdf`

_No text found in this document._