Description You could say that Superior Offshore International dives right into its work. Serving the oil and gas industry, the company specializes in subsea construction and commercial diving services (its overseas diving subsidiary Subtech goes under in Africa, the United Arab Emirates, and Latin America). Services include installation, upgrading and decommissioning of pipelines and platform infrastructure, as well as inspection, maintenance, and repair services performed by highly trained divers. Superior Offshore International serves large integrated energy companies and independent companies that specialize in oil and natural gas exploration, production, gathering, and transmission in the Gulf of Mexico.