Installation, construction, maintenance and repair of oil and gas well drilling rigs and equipment; rental and contracting of equipment, tools, and rigs for onshore and offshore oil and gas drilling, exploration and production; consulting services in the field of oil and gas well drilling; construction and repair of offshore oil and gas wells; construction and maintenance of pipeline systems; oil pipeline laying; pipeline construction and maintenance project management for others in the field of pipeline systems

Engineering of pipeline systems, onshore contract rotary drilling, production and other hydrocarbon related facilities for others; exploration for and development of oil and gas and other hydrocarbons; engineering services in the field of oil and gas exploration