Fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Towers and metal structures in desert lands, large and huge warehouse tanks, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories in the Kingdom of Saudi Arabia
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories in the Kingdom of Saudi Arabia, large and huge warehouses and tanks
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
A large truck drives on the soft golden sands of the Saudi Arabian desert, transporting oil from production sites to distribution stations or refineries, the importance of the energy sector in the economy
Towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories in the Kingdom of Saudi Arabia, large and huge warehouses and tanks
Petrochemical industries and projects, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, huge and modern tools and equipment
Oil refinery on soft golden sands, adoption of modern techniques and technology in gas production, petrochemical industries and projects, huge and modern tools and equipment, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia
Fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Engineering development of oil refineries in Saudi Arabia, oil mines on soft golden sands, harsh and dry climate, adoption of modern technologies in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment, towers and metal structures in desert lands
Oil refinery on soft golden sands, adoption of modern techniques and technology in oil production, petrochemical industries and projects, huge and modern tools and equipment, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia
Oil refinery on soft golden sands, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Petrochemical industries and projects, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, adoption of modern techniques and technology in gas production, huge and modern tools and equipment
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Engineering and urban development of oil refineries, side view of oil refinery in the desert of Saudi Arabia, harsh and dry climate, huge and modern tools and equipment, adoption of modern techniques and technology in oil and gas production, soft golden sand dunes
Smoke from factories in the Saudi desert, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, engineering and urban development of oil refineries, huge and modern tools and equipment
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands
Petrochemical industries and projects, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, huge and modern tools and equipment
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands
Oil refinery on soft golden sands, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Adoption of modern techniques and technology in gas production, petrochemical industries and projects, large and modern tools and equipment, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands
Engineering and urban development of oil refineries, side view of oil refinery in the desert of Saudi Arabia, harsh and dry climate, huge and modern tools and equipment, adoption of modern techniques and technology in oil and gas production, soft golden sand dunes
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, adoption of modern techniques and technology in gas production, petrochemical industries and projects, huge and modern tools and equipment
Petrochemical industries and projects, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, huge and modern tools and equipment
Fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Petrochemical industries and projects, huge and modern tools and equipment, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, adoption of modern techniques and technology in gas production
Petrochemical industries and projects, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, huge and modern tools and equipment
Petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries
Petrochemical industries and projects, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, huge and modern tools and equipment
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Huge and modern tools and equipment, towers and metal structures in desert lands, engineering development of oil refineries in Saudi Arabia, oil mines on soft golden sands, harsh and dry climate, adoption of modern technologies in oil and gas production, petrochemical industries and projects
Large and massive storage tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, adoption of modern techniques and technology in gas production, petrochemical industries and projects, huge and modern tools and equipment
Oil refinery on soft golden sands, adoption of modern techniques and technology in gas production, petrochemical industries and projects, huge and modern tools and equipment, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, adoption of modern techniques and technology in gas production, petrochemical industries and projects, huge and modern tools and equipment
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia, metal towers and structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy.
Saudi National Economy Revival, Towers and Metal Structures in Desert Lands, Large and Huge Warehouses and Tanks, Petrochemical Industries and Projects, Petroleum Engineering Concept in Gulf Countries, Oil and Gas Refineries, Fuel Factories and Mines in Saudi Arabia
Metal towers and structures in desert lands, oil and gas refineries, fuel factories and mines in the Kingdom of Saudi Arabia, large and huge warehouses and tanks, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy.
Towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Metal towers and structures in desert lands, oil and gas refineries, fuel factories and mines in the Kingdom of Saudi Arabia, large and huge warehouses and tanks, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy.
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Lighting towers and metal structures at sunset, the concept of petroleum engineering in the Gulf countries, oil and gas refinery, petrochemical industries and projects, the renaissance of the Saudi national economy, large and huge warehouses and tanks, oil factories and laboratories in the Kingdom of Saudi Arabia
Adoption of modern techniques and technology in oil and gas production, soft golden sand dunes, engineering and urban development of oil refineries, oil refinery in the desert of the Kingdom of Saudi Arabia, huge and modern tools and equipment
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and plants in the Kingdom of Saudi Arabia
Giant industrial engineering and equipment, oil and gas refinery in industrial area, steel pipelines and cables, petrochemical industries and projects, large industrial complex with tall smoke chimneys in Saudi Arabia, huge and large warehouses
Petrochemical industries and projects, the concept of petroleum engineering in the Gulf States, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, oil and gas refineries, fuel factories and mines in the Kingdom of Saudi Arabia
Large and massive warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia
Large and massive warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia
Top view of an oil refinery in the desert of Saudi Arabia, harsh and dry climate, huge and modern tools and equipment, adoption of modern techniques and technology in oil and gas production, soft golden sand dunes, engineering and urban development of oil refineries
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Adoption of modern techniques and technology in gas production, petrochemical industries and projects, large and modern tools and equipment, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Large industrial facilities for petroleum production, oil and gas refineries, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories and laboratories in the Kingdom of Saudi Arabia, lighting towers and metal structures at dawn, large warehouses and tanks.
Large and massive warehouses and tanks, lighting towers and metal structures at sunset, oil factories and plants in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf countries, oil and gas refinery, petrochemical industries and projects, the renaissance of the Saudi national economy
Oil refinery in the desert of Saudi Arabia, huge and modern tools and equipment, adoption of modern techniques and technology in oil and gas production, soft golden sand dunes, engineering and urban development of oil refineries
Lighting of towers and metal structures, oil factories and plants in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf countries, oil and gas refinery, petrochemical industries and projects, the renaissance of the Saudi national economy, large and huge warehouses and tanks
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, metal towers and structures in desert lands.
Large and massive warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia
Petrochemical industries and projects, oil and gas refineries, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and plants in the Kingdom of Saudi Arabia
Fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Oil factories and plants in the Kingdom of Saudi Arabia, petrochemical projects contributing to the renaissance of the Saudi national economy, oil and gas refinery, the concept of petroleum engineering in the Gulf States, large and huge warehouses and tanks
Saudi national economy renaissance, lighting towers and metal structures at sunset, oil factories and plants in Saudi Arabia, oil and gas refinery, petroleum engineering concept in Gulf countries, large and huge warehouses and tanks, petrochemical industries and projects
Lighting towers and metal structures at night, the renaissance of the Saudi national economy, oil factories and plants in the Kingdom of Saudi Arabia, oil and gas refinery, the concept of petroleum engineering in the Gulf countries, large and huge warehouses and tanks, petrochemical industries and projects
Lighting of towers and metal structures, oil factories and plants in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf countries, oil and gas refinery, petrochemical industries and projects, the renaissance of the Saudi national economy, large and huge warehouses and tanks
Adoption of modern techniques and technology in gas production, petrochemical industries and projects, large and modern tools and equipment, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands
Petrochemical industries and projects, engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, huge and modern tools and equipment
Large and huge warehouse tanks, metal towers and structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories in the Kingdom of Saudi Arabia
Petroleum engineering concept, oil and gas refinery, petrochemical industries and projects, renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, quality of machinery and equipment in factories extracting oil wealth from the depths of the seas
The concept of petroleum engineering, oil and gas refinery, petrochemical industries and projects, the renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, the quality of machinery and equipment in factories that extract oil wealth from the depths of the sea, the pipeline extending from the sea to refineries
Environmental pollution from oil and gas refinery smoke, petroleum engineering concept in the Gulf States, oil factories and plants in the Kingdom of Saudi Arabia, petrochemical development industries contributing to the renaissance of the Saudi national economy, large and huge warehouses and tanks, sky background at sunset
Large and massive warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Oil and gas refineries, towers and metal structures in desert lands, fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Saudi national economy renaissance, lighting towers and metal structures at sunset, oil factories and plants in Saudi Arabia, oil and gas refinery, petroleum engineering concept in Gulf countries, large and huge warehouses and tanks, petrochemical industries and projects
Quality of petroleum production plants and equipment, large industrial facilities, oil and gas refinery, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, metal and chemical industries
Quality of machinery and equipment in factories that extract oil wealth from the depths of the seas, the concept of petroleum engineering in the Gulf States, oil and gas refinery, petrochemical industries and projects, the renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia
Oil and gas refinery, lighting towers and metal structures, oil factories and plants in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf countries, petrochemical industries and projects, the renaissance of the Saudi national economy, large and huge warehouses and tanks
Oil and gas refinery, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories and plants in Saudi Arabia, lighting towers and metal structures at night, pollution resulting from oil production
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, metal towers and structures in desert lands.
Pollution resulting from petroleum production, smoke from large industrial facilities, oil and gas refineries, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories and laboratories in the Kingdom of Saudi Arabia, lighting towers and metal structures at dawn.
Petrochemical industries and projects, the concept of petroleum engineering in the Gulf States, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Oil and gas refinery in industrial area, steel pipelines and cables, petrochemical industries and projects, pollution from oil production, factories and plants in Saudi Arabia, large and huge warehouses, industrial engineering and equipment
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Oil factories and factories in the Kingdom of Saudi Arabia, lighting towers and metal structures at night, the concept of petroleum engineering in the Gulf countries, oil and gas refineries, petrochemical industries and projects, the renaissance of the Saudi national economy, large and huge warehouses and tanks
Towers and metal structures in the lands, the renaissance of the Saudi national economy, desert, large and huge warehouses and tanks, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, oil and gas refineries, fuel factories and mines in the Kingdom of Saudi Arabia
Modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia. Rear view of a Saudi businessman wearing a thobe and wearing a ghutra and agal watching the progress of factory work, large buildings with many pipes and steam rising in the sunlight, blue sky with clouds, Saudi professions and jobs in the background of an oil refinery
Pollution from petroleum production, petrochemical industries and projects, steel pipelines and cables, oil and gas refinery in industrial area, factories and plants in Saudi Arabia, large and huge warehouses, industrial engineering and equipment
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Fuel factories and mines in Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
Oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia, large and huge warehouses and tanks, towers and metal structures in desert lands
Renaissance of the Saudi national economy, the concept of petroleum engineering in the Gulf countries, towers and metal structures in the desert at sunset, oil and gas refinery in the Kingdom of Saudi Arabia, large and huge warehouses and tanks, petrochemical industries and projects
Petroleum engineering concept, oil and gas refinery, petrochemical industries and projects, renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, quality of machinery and equipment in factories that extract oil wealth from the depths of the seas
The concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, oil and gas refineries, petrochemical industries and projects, towers and metal structures in desert lands.
Towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Engineering and urban development of oil refineries in the Kingdom of Saudi Arabia, oil refinery on soft golden sands, harsh and dry climate, adoption of modern techniques and technology in oil and gas production, petrochemical industries and projects, huge and modern tools and equipment
Lighting of towers and metal structures at night, large and huge warehouses and tanks, oil factories and plants in the Kingdom of Saudi Arabia, working in the field of petroleum engineering in the Gulf countries, a side view of a Saudi Arabian Gulf engineer wearing a jacket and a protective helmet following the progress of work in the plants
Large and massive warehouses and tanks, towers and metal structures in desert lands, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and mines in the Kingdom of Saudi Arabia
Working in the field of petrochemical industries and projects, steel pipelines and cables, the concept of gas productivity in the Kingdom of Saudi Arabia, following up on the progress of work in factories and plants, a group of Saudi Gulf Arab engineers working in an oil and gas refining plant
Large and massive warehouses and tanks, lighting towers and metal structures at sunset, oil factories and plants in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf countries, oil and gas refinery, petrochemical industries and projects, the renaissance of the Saudi national economy