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 |
|---|---|---|---|
|
Cia. de Transporte de Energia Electrica
Operates and maintains high-voltage electricity transmissio…
|
— | AR | Electricity, gas, steam and air… |
|
CIA ENERG CEARA - COELCE
Provides electrical power distribution services across 184 …
|
— | BR | Electricity, gas, steam and air… |
|
CIA ESTADUAL DE DISTRIBUIÇÃO DE ENERGIA ELETRICA
Distributes electricity to 1.9 million units in south-south…
|
— | BR | Electricity, gas, steam and air… |
|
CLP Holdings Limited
Major investor-owned power business in Asia-Pacific generat…
|
2 | HK | Electricity, gas, steam and air… |
|
CMS ENERGY CORP
An energy company providing electricity and natural gas to …
|
CMS | US | Electricity, gas, steam and air… |
|
C.N.T.E.E. Transelectrica
Manages and operates the national electricity transmission …
|
TEL | RO | Electricity, gas, steam and air… |
|
COMPANHIA CELG DE PARTICIPAÇÕES - CELGPAR
Holding company managing electricity generation, transmissi…
|
— | BR | Electricity, gas, steam and air… |
|
COMPANHIA ENERGÉTICA DE BRASÍLIA - CEB
Energy holding company focused on generation, transmission,…
|
— | BR | Electricity, gas, steam and air… |
|
COMPAÑIA ELECTRICA DEL LITORAL S.A.
Distributes and sells electrical energy in the southern coa…
|
— | CL | Electricity, gas, steam and air… |
|
COMPAÑIA GENERAL DE ELECTRICIDAD S.A.
Engaged in electricity distribution, transmission, generati…
|
— | CL | 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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