Well drilling services; construction of structures for the production of crude oil; Maintenance and repair services of machinery and apparatus for oil exploration and exploitation

Prospecting of oil wells, namely, well logging and testing; Control of oil wells, namely, performing oil well diagnostics; Analysis and evaluation of oil fields; Development, maintenance, updating and leasing of software; Reconstruction of data base systems for others; Research and development of new products for the exploration and exploitation of oil

Oil and gas well equipment, namely, hydraulic pumps, and parts thereof, all sold as a unit, namely, sliding sleeves, nipples, standing valves, safety joints, mule shoes, and re-entry guides