Category:Energy companies by century of establishment

This is a container category. Due to its scope, it should contain only subcategories.

Subcategories

This category has the following 4 subcategories, out of 4 total.

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Energy companies established in the 18th century‎ (1 C)
Energy companies established in the 19th century‎ (10 C)
Energy companies established in the 20th century‎ (10 C)
Energy companies established in the 21st century‎ (3 C)

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