CEC

[ Building construction and repair; ] installation services, namely, installation of separators, [ pipes, wires, pumps, valves, flow control modules, manifolds, compressors, and templates all petroleum treatment and handling equipment; drilling of wells; construction management; custom shipbuilding; building, maintenance and repair of shipyards; maintenance and repair of machines; installation and repair of oil pipes; underwater construction and repair; planning and consulting regarding building construction ]

[ Treatment of materials, namely, treatment of petroleum, gas, sand, water; separation of petroleum ] [ ; refining services ]

[ Geological research, geological prospecting; geological soil research; oil well testing; analysis services for the usage of oil fields of oil prospecting; consulting regarding oil fields; oil prospecting; ] technical consultation in engineering [ ; chemical research, namely, oil processing surveys and analysis; chemical surveys and analysis, namely, oil processing surveys and analysis; mechanical research; computer programming for others; underwater surveys ]