37
Building constructions and repair; installation services, namely, installation of separators, pipes, wires, pumps, valves, flow control modules, manifolds and templates all for use in petroleum drilling and handling; well drilling; construction management; shipbuilding; construction, maintenance and repair of shipyards; installation, maintenance and repair of oil drilling and refining machinery; installation and maintenance of oil pipelines; underwater building and underwater repair of oil drilling platforms and tankers; Planning and advisory services regarding building and construction of oil drilling, oil refining, and shipbuilding facilities
40
Environmental remediation services, namely, treatment of petroleum, gas, sand and water
42
Analysis services for exploitation of oil fields and oil exploration; consultancy services in the field of oil field engineering, oil drilling, and petroleum refining; chemical research, investigation, and analysis for others in the fields of petroleum chemistry; research regarding mechanics of oil drilling and oil refining equipment for others; computer programming; underwater exploration
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