Middle West Utilities Company
E579825
Middle West Utilities Company was a major early 20th-century American electric utility holding company associated with the expansion and subsequent collapse of Samuel Insull’s vast utility empire.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Middle West Utilities Company canonical | 1 |
| St. Louis Public Service Company (controlling interest) | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T6262775 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Middle West Utilities Company Context triple: [Samuel Insull, employer, Middle West Utilities Company]
-
A.
Kansas City Power & Light Company
Kansas City Power & Light Company is a historic electric utility company based in Kansas City, Missouri, known for powering the region and lending its name to the city’s downtown Power & Light District.
-
B.
Great Western Power Company
Great Western Power Company was an early 20th-century California electric utility company known for developing hydroelectric projects and infrastructure in the Sierra Nevada region.
-
C.
Southwestern Power Administration
Southwestern Power Administration is a U.S. federal agency that markets and transmits hydroelectric power generated at federally owned dams across the southwestern region.
-
D.
Duke Power Company
Duke Power Company is a U.S. electric utility company historically known for its involvement in the landmark employment discrimination case Griggs v. Duke Power Co.
-
E.
Western Area Power Administration
Western Area Power Administration is a U.S. federal agency that markets and transmits wholesale hydroelectric power across the western and central United States.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Middle West Utilities Company Target entity description: Middle West Utilities Company was a major early 20th-century American electric utility holding company associated with the expansion and subsequent collapse of Samuel Insull’s vast utility empire.
-
A.
Kansas City Power & Light Company
Kansas City Power & Light Company is a historic electric utility company based in Kansas City, Missouri, known for powering the region and lending its name to the city’s downtown Power & Light District.
-
B.
Great Western Power Company
Great Western Power Company was an early 20th-century California electric utility company known for developing hydroelectric projects and infrastructure in the Sierra Nevada region.
-
C.
Southwestern Power Administration
Southwestern Power Administration is a U.S. federal agency that markets and transmits hydroelectric power generated at federally owned dams across the southwestern region.
-
D.
Duke Power Company
Duke Power Company is a U.S. electric utility company historically known for its involvement in the landmark employment discrimination case Griggs v. Duke Power Co.
-
E.
Western Area Power Administration
Western Area Power Administration is a U.S. federal agency that markets and transmits wholesale hydroelectric power across the western and central United States.
- F. None of above. chosen
Statements (32)
| Predicate | Object |
|---|---|
| instanceOf |
electric utility holding company
ⓘ
public utility holding company ⓘ |
| associatedWith | Samuel Insull ⓘ |
| basedIn | Chicago ⓘ |
| businessModel | holding company controlling numerous operating utilities ⓘ |
| businessStrategy | acquisition and consolidation of regional electric utilities ⓘ |
| collapseContext | Great Depression ⓘ |
| contributedTo | public and political backlash against complex utility holding company structures ⓘ |
| controlledBy | Samuel Insull ⓘ |
| corporateStructure | multi-tiered holding company system ⓘ |
| country |
United States
ⓘ
linked to:
United States of America
|
| experienced | insolvency during the early 1930s ⓘ |
| financingMethod |
extensive use of holding-company securities
ⓘ
highly leveraged capital structure ⓘ |
| foundedBy | Samuel Insull ⓘ |
| historicalRole | symbol of overexpansion in utility holding companies ⓘ |
| historicalSignificance |
its collapse was widely covered in contemporary financial press
ⓘ
its failure damaged investor confidence in utility securities ⓘ |
| industry |
electric power industry
ⓘ
public utilities ⓘ |
| influenced | development of U.S. federal regulation of utility holding companies ⓘ |
| knownFor |
being one of the largest components of the Insull system
ⓘ
complex network of subsidiaries ⓘ |
| notableFor |
collapse during the Great Depression
ⓘ
rapid expansion of electric utility holdings ⓘ |
| operatedInPeriod | early 20th century ⓘ |
| operatedInSector |
electric distribution
ⓘ
electric generation ⓘ electric transmission ⓘ |
| partOf | Insull utility empire ⓘ |
| regulatoryContext | lightly regulated utility holding company era before the Public Utility Holding Company Act of 1935 ⓘ |
| relatedLegislation | Public Utility Holding Company Act of 1935 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Middle West Utilities Company Description of subject: Middle West Utilities Company was a major early 20th-century American electric utility holding company associated with the expansion and subsequent collapse of Samuel Insull’s vast utility empire.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Middle West Utilities Company