Category:Energy companies

• Energy companies by country‎ (13 C)
• Energy companies by continent‎ (4 C)
• Energy companies by time‎ (3 C)

D

• Defunct energy companies‎ (2 C)

E

• Electric power companies‎ (3 C, 1 P)
• Energy engineering and contractor companies‎ (1 C)

G

• Government-owned energy companies‎ (1 C)

N

• Nuclear energy companies‎ (2 C)

O

• Oil and gas companies‎ (4 C)

P

• Public utilities‎ (4 C)

R

• Renewable energy companies‎ (3 C)