Range:
Subjects: Commerce; Oman; Statistics; Economic aspects; Petroleum
Subjects: Commerce; Oman; Petroleum; Statistics
Subjects: Oman; Statistics; Economic aspects; Petroleum
Subjects: Jordan; Statistics; Economic aspects; Petroleum
Subjects: Petroleum
Subjects: Egypt; Western Sahara; Geology; Petroleum
Subjects: Corporations; Petroleum; Petroleum products
Subjects: Foreign investments; Oman; Statistics; Petroleum
Subjects: Kuwait; Statistics; Economic aspects; Petroleum
Subjects: Kuwait; Statistics; Natural gas; Petroleum
Subjects: Khartoum; Sudan; Economic aspects; Environmental aspects; Petroleum
Subjects: Corporations; Petroleum; Petroleum products; Water resources; Water
Subjects: Organic compounds; Petroleum; Automobiles; Fuels; Hydrocarbons
Subjects: Iraq; Oil fields; Petroleum
Subjects: Statistics; Sudan; Petroleum
Subjects: Arab world; Statistics; Petroleum
Subjects: Culicidae; Water pollution; Fishes; Petroleum; Toxicology
Subjects: Libya; Petroleum products; Statistics; International trade; Petroleum
Subjects: Commerce; Libya; Petroleum; Statistics; Petroleum products
Subjects: Libya; Statistics; Petroleum
Subjects: Chemistry; Evaporation; Humidity; Physics; Petroleum
Subjects: Mathematical models; Petroleum
Subjects: Algeria; Economic aspects; Petroleum; Petroleum products; Prices
Subjects: Iraq; Neural networks (Computer science); Data processing; Geology; Petroleum
Subjects: Alkanes; Petroleum
Subjects: Iraq; Petroleum; Toxicology
Subjects: Petroleum; Sanitation; Waste water
Subjects: Economic aspects; Government policy; Petroleum
Subjects: Jordan; Corporations; Petroleum; Petroleum products; Prices