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 |
|---|---|---|---|
|
Elia Group NV/SA
A European transmission system operator managing high-volta…
|
ELI | BE | Electricity, gas, steam and air… |
|
EMERA INC
Generates, transmits, and distributes electricity and natur…
|
EMA | US | Electricity, gas, steam and air… |
|
Emera Incorporated
Operates a portfolio of regulated electric and natural gas …
|
EMA | CA | Electricity, gas, steam and air… |
|
Emp. Distribuidora de Electricidad de Mendoza S.A.
An electric power distribution company delivering safe, sus…
|
— | AR | Electricity, gas, steam and air… |
|
Empresa Distribuidora de Electricidad de Salta S.A
An electricity distribution and sales company serving resid…
|
— | AR | Electricity, gas, steam and air… |
|
Empresa Distribuidora Sur S.A.
An electricity distribution and sales company serving 2.5 m…
|
— | AR | Electricity, gas, steam and air… |
|
Empresa Distribuidora y Comercializadora Norte SA
Largest electricity distribution company with an exclusive …
|
— | AR | Electricity, gas, steam and air… |
|
EMPRESA ELECTRICA DE LA FRONTERA S.A.
Distributes electric power to communes and rural sectors. M…
|
— | CL | Electricity, gas, steam and air… |
|
EnBW Energie Baden-Württemberg AG
An integrated energy company focused on renewable energy an…
|
EBK | DE | Electricity, gas, steam and air… |
|
Endesa S.A.
An electric utility and natural gas operator focused on cle…
|
ELE | ES | 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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