BLACK HILLS CORP /SD/ — Investor Relations & Filings
Filings indexed
1,835
across all filing types
Latest filing
2026-05-19
Regulatory Filings
Country
US
United States of America
Listing
US
BKH
Black Hills Corp. is a growth-oriented, vertically integrated energy company that operates as a regulated utility. The company's core business involves the generation, transmission, and distribution of electricity, as well as the transmission and distribution of natural gas. It serves approximately 1.35 million residential and commercial customers across a multi-state service area that includes Arkansas, Colorado, Iowa, Kansas, Montana, Nebraska, South Dakota, and Wyoming. The company's stated mission is to 'improve life with energy.' In a significant strategic development, Black Hills Corp. has announced an all-stock merger agreement with NorthWestern Energy to form an expanded regional utility company.
Recent filings
| Filing | Released | Lang | Actions |
|---|---|---|---|
| 424B5 | 2026-05-19 | English | |
| S-3ASR | 2026-05-19 | English | |
| 8-K | 2026-05-15 | English | |
| 10-Q - BLACK HILLS CORP /SD/ (0001130464) (Filer) | 2026-05-07 | English | |
| 8-K - BLACK HILLS CORP /SD/ (0001130464) (Filer) | 2026-05-06 | English | |
| 8-K - BLACK HILLS CORP /SD/ (0001130464) (Filer) | 2026-02-19 | English |
Browse filings by year
17 years| ID | Filing | Released | Lang | Actions | |
|---|---|---|---|---|---|
|
2026
15 filings
| |||||
| 46535995 | 424B5 | 2026-05-19 | English | ||
| 46534357 | S-3ASR | 2026-05-19 | English | ||
| 46362326 | 8-K | 2026-05-15 | English | ||
| 43151402 | 10-Q - BLACK HILLS CORP /SD/ (0001130464) (Filer) | 2026-05-07 | English | ||
| 42018800 | 8-K - BLACK HILLS CORP /SD/ (0001130464) (Filer) | 2026-05-06 | English | ||
| 32888111 | 8-K - BLACK HILLS CORP /SD/ (0001130464) (Filer) | 2026-02-19 | English | ||
| 32888110 | 4 - BLACK HILLS CORP /SD/ (0001130464) (Filer) | 2026-02-19 | English | ||
| 28059897 | 4 Filing | 2026-02-13 | English | ||
| 28059781 | 4 Filing | 2026-02-13 | English | ||
| 28058085 | 4 Filing | 2026-02-13 | English | ||
| 28059598 | 10-K Filing | 2026-02-11 | English | ||
| 28060169 | 4 Filing | 2026-02-10 | English | ||
| 28060044 | 4 Filing | 2026-02-10 | English | ||
| 28060008 | 4 Filing | 2026-02-10 | English | ||
| 28059729 | 4 Filing | 2026-02-10 | English | ||
Market data
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Peer group · Electric power transmission and distribution activities
| Company | Ticker | Country | Sector |
|---|---|---|---|
|
AXIA ENERGIA NORDESTE S.A.
Operates power transmission concessions and renewable energ…
|
— | BR | Electricity, gas, steam and air… |
|
AYEN ENERJİ A.Ş.
Generates, distributes, and trades electricity from hydro, …
|
AYEN | TR | Electricity, gas, steam and air… |
|
BKW AG
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BKW | CH | Electricity, gas, steam and air… |
|
Blink Charging Co.
Owner, operator, and provider of EV charging equipment and …
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BLNK | US | Electricity, gas, steam and air… |
|
BluGo S.A.
Manages a franchise network of charging points for electric…
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YOL | PL | Electricity, gas, steam and air… |
|
Calibre Energy Inc.
Delivers comprehensive Battery Energy Storage Systems for u…
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CABE | CA | Electricity, gas, steam and air… |
|
Canadian Utilities Limited
A diversified global energy infrastructure corporation deli…
|
CU | CA | Electricity, gas, steam and air… |
|
Caribbean Utilities Company, Ltd.
Sole public electric utility for generation, transmission, …
|
CUP.U | KY | Electricity, gas, steam and air… |
|
CELEO REDES OPERACION CHILE S.A.
Energy infrastructure company specializing in electricity t…
|
— | CL | Electricity, gas, steam and air… |
|
CENTERPOINT ENERGY INC
Energy delivery company providing electric and natural gas …
|
CNP | US | Electricity, gas, steam and air… |
BLACK HILLS CORP /SD/ 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/31112/ | Company identity, sector, listing, identifiers |
| GET | /api/filings/?company=31112 | 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=31112 | All ISINs registered to this company |
| GET | /api/filing-types/ | Reference: every filing-type code + category |
Full reference: API reference · OpenAPI schema
cURL
$ curl https://api.financialreports.eu/api/filings/?company=31112 \ -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": 31112}, 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 BLACK HILLS CORP /SD/ (id: 31112)"
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