Materias dentro de su búsqueda.
Materias dentro de su búsqueda.
Petroleum
Geology
9
Petroleum industry and trade
6
Natural gas
5
Petroleum engineering
4
Engineering
3
Engineering and Technology
3
Physical Sciences
3
Refining
3
Technology
3
Energy Engineering
2
Geophysics
2
Metallurgy & Mineralogy
2
Oil reservoir engineering
2
Petroleo
2
Petroleum Engineering
2
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2
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2
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2
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Canada
1
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