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Subject
- Petroleum[remove]44
- Prospecting40
- Geology14
- Natural gas12
- Geochemical prospecting4
- Petroleum reserves4
- Seismic prospecting3
- Thermal prospecting3
- Coal2
- Data processing2
- Geology, Stratigraphic2
- Geophysical methods2
- Oil fields2
- Oil wells2
- Power resources2
- Biogeochemistry1
- Computer simulation1
- Environmental aspects1
- Formations (Geology)1
- GEOPLAY (Computer file)1