Industrial Building Construction, Oil and Gas Pipeline and Related Structures Construction, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, Structural Steel and Precast Concrete Contractors

Petroleum Refineries, Petroleum Lubricating Oil and Grease Manufacturing, Ethyl Alcohol Manufacturing, Measuring and Dispensing Pump Manufacturing, Petroleum and Petroleum Products Merchant Wholesalers (except Bulk Stations and Terminals)

AVISTA OIL

Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Site Preparation Contractors, Asphalt Paving Mixture and Block Manufacturing

Crushed and Broken Limestone Mining and Quarrying, Water and Sewer Line and Related Structures Construction, Land Subdivision, Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction

Asphalt Paving Mixture and Block Manufacturing

Nursery and Tree Production, Logging, Dimension Stone Mining and Quarrying, Water Supply and Irrigation Systems, Residential Remodelers