WESTERN DIVISION

KINETIC SYSTEMS, INC.

CORPORATE OFFICE

HAWKINS TRAFFIC

DUTRA CONSTRUCTION CO., INC.

USG TRADING CONTRACTS

ADLER TANK RENTALS, LLC

CHEVRON GLOBAL AVIATION

MARTIN'S DIESEL SHOP

GRANITEROCK CONSTRUCTION DIVISION

Construct well, drilling, water well, municipal, geothermal, monitoring, test holes, shallow oil wells, pump installation, destroy well, potable water system, dewatering wells, abandon well

Dimension Stone Mining and Quarrying, Crushed and Broken Limestone Mining and Quarrying, Crushed and Broken Granite Mining and Quarrying, Other Crushed and Broken Stone Mining and Quarrying, Construction Sand and Gravel Mining

Support Activities for Forestry, Construction Sand and Gravel Mining, Industrial Sand Mining, Water Supply and Irrigation Systems, Sewage Treatment Facilities

Support Activities for Oil and Gas Operations, Remediation Services

Support Activities for Oil and Gas Operations, Oil and Gas Pipeline and Related Structures Construction, Other Foundation, Structure, and Building Exterior Contractors, Plumbing, Heating, and Air-Conditioning Contractors, Other Building Finishing Contractors

Heavy Construction

Support Activities for Oil and Gas Operations, Other Heavy and Civil Engineering Construction, Other Foundation, Structure, and Building Exterior Contractors, Site Preparation Contractors, Ship Building and Repairing

Marine Towing, Tugboat, Dredging, Barging, Oyster Shell, Sand, Craine Barge, Remediation

Support Activities for Oil and Gas Operations, Offices of Notaries, All Other Professional, Scientific, and Technical Services, Document Preparation Services, All Other Business Support Services

Support Activities for Oil and Gas Operations, Water and Sewer Line and Related Structures Construction, Oil and Gas Pipeline and Related Structures Construction, Poured Concrete Foundation and Structure Contractors, Structural Steel and Precast Concrete Contractors