Leasing of oil and gas production equipment, namely, drilling tools, pipe grapple tools, cutting tools, flowline plugs, valve tools, cutoff tools, tools for well tiebacks, pumps, flying lead orientation tools, fairing installation tools, riser disconnect tools, strake installation tools, dredging apparatus, and pipeline hub tools; custom manufacture of robots, remotely operated vehicles, robot arms, and apparatus used in the fields of marine oil and gas exploration and production, and pipeline construction and maintenance