Northwestern Energy

Northwestern Energy is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Fuel Oils
• Natural Gas
• Propane Gas

North American Industry Classification System (NAICS) Categories:

• Natural Gas Distribution
• Heating Oil Dealers
• Liquefied Petroleum Gas (Bottled Gas) Dealers > Bottled & Bulk Gas > Gas Natural & Propane Equipment

Standard Industry Classification (SIC) Categories:

• Natural Gas Distribution
• Fuel Oil Dealers
• Liquefied Petroleum Gas (Bottled Gas) Dealers > Bottled & Bulk Gas > Gas Natural & Propane Equipment