- Electric services (98)
- Natural gas transmission (7)
- Gas transmission and distribution (3)
- Natural gas distribution (12)
- Gas production and/or distribution (1)
- Electric and other services combined (7)
- Gas and other services combined (2)
- Combination utilities, nec (7)
- Water supply (46)
- Sewerage systems (2)
- Refuse systems (85)
- Sanitary services, nec (65)
- Irrigation systems (13)