37 Inspection services in the course of drilling of oil and gas wells; Consulting services in the field of oil and gas drilling tools, equipment and operations; Consulting services in the field of inspection, repair and maintenance of drilling equipment; inspection, maintenance and repair of drilling apparatus; inspection, maintenance and repair of drilling tools and equipment; Inspection, maintenance and cleaning of drilling equipment; Providing information relating to the inspection, repair or maintenance of drilling machines and apparatus; Provision of information relating to the inspection, repair or maintenance of drilling machines and apparatus; Inspection, repair and maintenance of drilling equipment, including hard banding and straightening of tubulars and thread improvement services; Inspection, repair and maintenance of drilling tools and equipment; Inspection, repair or maintenance of drilling machines and apparatus