DUCON ENERGY LLC

Trenching, Backhoe, Water, Sewer and, Electrical Line, Reconstruction, General Freight, Trucking, Support activities, for forestry

BISON BUILDERS

Construction Sand and Gravel Mining, Highway, Street, and Bridge Construction, Site Preparation Contractors, All Other Specialty Trade Contractors

Construction Sand and Gravel Mining, Support Activities for Oil and Gas Operations, Industrial Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction

Trucking, sand & gravel, excavation

ROSSCO CRANE & RIGGING INC

Support Activities for Oil and Gas Operations, Water Supply and Irrigation Systems, Sewage Treatment Facilities, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders)

Soybean Farming, Corn Farming, Hay Farming, Soil Preparation, Planting, and Cultivating, Support Activities for Forestry

Drilling Oil and Gas Wells, Support Activities for Oil and Gas Operations, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction

Support Activities for Oil and Gas Operations, New Single-Family Housing Construction (except Operative Builders), New Multifamily Housing Construction (except Operative Builders), Residential Remodelers, Oil and Gas Pipeline and Related Structures Construction

Support Activities for Coal Mining, Administrative Management and General Management Consulting Services, Human Resources and Executive Search Consulting Services, Other Scientific and Technical Consulting Services, Professional and Management Development Training

Construction Sand and Gravel Mining

drilling

Support Activities for Oil and Gas Operations, Water Supply and Irrigation Systems, Site Preparation Contractors, Other Support Activities for Water Transportation

Support Activities for Oil and Gas Operations

Construction Sand and Gravel Mining, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Poured Concrete Foundation and Structure Contractors, Site Preparation Contractors

Construction Sand and Gravel Mining, Water Supply and Irrigation Systems, Water and Sewer Line and Related Structures Construction, Power and Communication Line and Related Structures Construction, Other Heavy and Civil Engineering Construction

Support Activities for Oil and Gas Operations, Sewage Treatment Facilities, Water and Sewer Line and Related Structures Construction, Highway, Street, and Bridge Construction, Site Preparation Contractors

Support Activities for Oil and Gas Operations, Industrial Building Construction, Commercial and Institutional Building Construction, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction

Support Activities for Oil and Gas Operations, Oil and Gas Pipeline and Related Structures Construction, Site Preparation Contractors, All Other Specialty Trade Contractors

Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining, Support Activities for Oil and Gas Operations, Support Activities for Coal Mining, Support Activities for Metal Mining