Construction project management services in the field of construction of offshore oil and gas facilities; Construction, maintenance, and construction project management services in oil and gas fields; Consulting services in the field of offshore oil and gas facility construction; Covering, coating, and maintenance of pipelines for oil; Drilling and pumping of oil; Drilling for crude oil; Drilling of deep oil or gas wells; Drilling of oil wells; Extraction of oil; Extraction of oil and gas; Installation of oil production apparatus; Oil and gas drilling; Oil pipeline construction; Oil pipeline laying; Oil pumping; Oil pumping and extraction; Oil well casing, tubing, and drill pipe installation; Oil well drilling; Pumping crude oil; Rental of oil well drilling tools; Technical consulting related to the installation of oil and gas equipment, control systems, and machinery; Water or oil well boring