Construction of facilities, structures, living quarters, and utility buildings, production modules and subsea modules in the oil and gas industry; Electrical contracting; Electrical contractor services; Oil and gas drilling; Oil pipeline construction; Oil pumping; Oil pumping and extraction; Oil well drilling; Construction of facilities, structures, living quarters, and utility buildings, production modules and subsea modules in the oil and gas industry; Consulting services in the field of offshore oil and gas facility construction; Consulting services in the field of offshore oil and gas facility construction; Consulting services in the field of offshore oil and gas facility construction; Drilling and pumping of oil; Drilling for crude oil; Extraction of oil; Oil pipeline construction; Pipeline construction; Underwater construction