Geological and geophysical scientific and technological research services, namely, using electromagnetic fields, acquired and/or simulated in one or in a combination of possible settings, such as in the air, on land, beneath the land surface, on the water surface or near the water surface, on the seafloor or near the seafloor, and/or in one or several boreholes for the purpose of reconstruction of subsurface resistivity to detect, evaluate, or monitor hydrocarbon reservoirs, mineral deposits, or any other subsurface resistivity anomalies and targets, and perform geological and geophysical research and design services relating thereto; industrial analysis and geological and geophysical research services, namely, using recorded and/or simulated electromagnetic fields solely or jointly with other geophysical and geological data for reconstruction of subsurface resistivity; design and development of computer hardware and software featuring new hardware instruments and electromagnetic data acquisition schemes; and development of modeling, processing, inversion, and interpretation software, all the aforementioned services offered prior to drilling, during drilling, or after drilling for hydrocarbons, or during any other exploration and production activities, or during any other application of geophysical electromagnetic methods