42 Geological information; information services relating to geological gravity and geological magnetic data; geological, land, oilfield, gas, mineral and energy surveying services; geophysical prospecting; geological research; compilation of geological reports and maps and geophysical reports and maps; material testing; geophysical consultancy services in the fields of data analysis, hiring and licensing of data, software and integrated interpretation services; ground water and pollution studies; mapping services; engineering site investigation services; research in the field of petrophysics, rock stress, fracture analysis, core orientation, formation evaluation, computer data; technical project studies; professional consultancy relating to all the aforementioned services