37 Pipeline construction and maintenance; Construction services, namely, planning, laying out and construction of commercial, industrial, and governmental facilities; Oilfield construction; construction of oil, gas, commercial, industrial, and governmental facilities; Icefield construction for oil drilling, gas drilling, commercial and industrial facilities; Maintaining oil and gas drilling facilities in the field of the energy industry; Construction project management services in the field of the energy industry; Installation of computer network and communication cabling in the nature of laying cable; Construction and construction management of air fields, airplane runways, highways, roads, power plants, water, sewer and fuel systems infrastructure, water, sewer and storm drain utilities, embankments, onshore and offshore pipelines and compressor stations; renovation of buildings and structures; Construction services, namely, site clearing, excavation, pad preparation, grading, and asphalt paving services; road paving services; excavation services; rock and gravel quarrying and rock crushing and screening; mining extraction; consulting services in the field of offshore oil spill clean-up, containment in the nature of localization, drying and cleaning of oils, and collection in the nature of oil removal services; technical consultation in the field of crude, oil well, oil and gas drilling; maintenance and sustainment in the nature of repair of computer networks, radio frequencies, analog and digital equipment, data compression subsystems, and circuit boards