The Willis Group

The Willis Group is also listed under the following categories: Standard Yellow Pages Heading (SYPH) Categories:

• Petroleum Products & Equipment

North American Industry Classification System (NAICS) Categories:

• Petroleum And Petroleum Products Merchant Wholesalers (Except Bulk Stations And Terminals)

Standard Industry Classification (SIC) Categories:

• Petroleum And Petroleum Products Wholesalers, Except Bulk Stations And Terminals