The quality of machinery and equipment in oil extraction plants, modern technologies in oil and gas production, petroleum refining plants in the Kingdom of Saudi Arabia, the concept of work in the industrial engineering sector.
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
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
Industrial engineering and equipment, factories and plants in Saudi Arabia, oil and gas refining plant in the industrial area, steel pipelines and cables, petrochemical industries and projects, pollution resulting from oil production, large and huge warehouses
Exploration for underground resources in the Kingdom of Saudi Arabia, development of the Saudi economy, huge drilling machines used in petroleum extraction, petrochemical industries and projects in the Kingdom, pipelines and heavy steel equipment, work in the field of industrial and petroleum engineering.
Extracting underground resources from the sea, huge machines and heavy equipment used in petroleum exploration, work in the field of petroleum engineering, petrochemical industries and projects in the Kingdom, oil and gas refining factories in the industrial zone in Saudi Arabia, Saudi economic growth and progress
The concept of petroleum engineering in the Gulf countries, petrochemical industries and projects, gas refinery, the renaissance of the Saudi national economy, the view of large and huge warehouses and tanks, oil factories and laboratories in the Kingdom of Saudi Arabia
Petrochemical industries and projects, pollution resulting from oil production, steel pipelines and cables, oil and gas refinery in the industrial area, factories and plants in the Kingdom of 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
The concept of petroleum engineering in the Gulf countries, petrochemical industries and projects, gas refinery, the renaissance of the Saudi national economy, the view of large and huge warehouses and tanks, oil factories and laboratories in the Kingdom of Saudi Arabia
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
The view of the sky at dawn, oil factories and factories in the Kingdom of Saudi Arabia, oil and gas refineries, the concept of petroleum engineering in the Gulf countries, lighting towers and metal structures, large and huge warehouses and tanks, petrochemical industries and projects, the renaissance of the Saudi national economy
Lighting of towers and metal structures at sunset, 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
Petrochemical industries and projects, an oil and gas platform for extracting oils, the renaissance of the Saudi national economy, an excavator performing exploration, the quality of machinery and equipment in factories that extract oil wealth from the depths of the sea, the concept of petroleum engineering
Development of the Saudi economy, huge drilling machines used in extracting petroleum, exploration for underground resources in the Kingdom of Saudi Arabia, petrochemical industries and projects in the Kingdom, pipelines and heavy steel equipment, work in the field of industrial and petroleum engineering.
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
The quality of machinery and equipment in oil extraction plants, the use of modern technologies in oil and gas production, oil refining plants in the Kingdom of Saudi Arabia, the concept of work in the industrial engineering sector, the view of clouds in the sky
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
Large and massive storage tanks, towers and metal structures in desert lands, panoramic image of oil and gas refineries, petrochemical industries and projects, petroleum engineering concept in the Gulf countries, renaissance of the Saudi national economy, fuel factories in the Kingdom of Saudi Arabia
Steel Pipelines and Cables, Petrochemical Industries and Projects, Pollution from Oil Production, Oil and Gas Refinery in Industrial Area, Factories and Plants in Saudi Arabia, Large and Huge Warehouses, Industrial Engineering and Equipment
Gas Refinery, Petroleum Engineering Concept in Gulf Countries, Lighting Towers and Metal Structures at Sunset, Large and Huge Warehouses and Tanks in Desert Areas, Petrochemical Projects Contributing to the Revival of the Saudi National Economy, Oil Factories and Plants in the Kingdom of Saudi Arabia
The quality of machinery and equipment in oil extraction plants, the concept of work in the industrial engineering sector, modern technologies in oil and gas production, petroleum refining plants at sunset 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, helmet and headband 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
Steel Pipelines and Cables, Petrochemical Industries and Projects, Pollution from Oil Production, Oil and Gas Refinery in Industrial Area, Factories and Plants in Saudi Arabia, Large and Huge Warehouses, Industrial Engineering and Equipment
Oil and gas refineries, the renaissance of the Saudi national economy, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, metal towers and structures in desert lands.
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 mines 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
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
Lighting of towers and structures at night, oil factories and plants in Saudi Arabia, the concept of petroleum engineering in the Gulf States, petrochemical industries contributing to the renaissance of the Saudi national economy, huge warehouses and tanks, background of the sky covered with black clouds on a stormy night
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, Saudi Gulf Arab engineers working in the oil and gas refining plant
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
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
Work progress at work site, a, Back view of two Saudi Arabian Gulf workers wearing orange protective suits and helmets Oil and gas refinery, pipelines extending from the depths of the sea to the refineries, working in the field of petroleum engineering in the Kingdom of Saudi Arabia
Oil platform for oil extraction, extraction and export of underground resources, drilling rig for oil exploration in the middle of the sea, huge drilling machines, quality of tools and equipment for the manufacture and storage of petroleum
Machinery and equipment in oil extraction plants from the depths of the seas, the concept of petroleum engineering, oil factories in the Kingdom of Saudi Arabia, oil and gas refinery, the renaissance of the Saudi national economy, petrochemical industries and projects
An oil refinery for extracting oils, extracting and exporting underground resources, a close-up photo of a rig exploring for oil in the middle of the sea, huge drilling machines, quality tools and equipment for manufacturing and storing petroleum
Renaissance in the Saudi national economy, a black and white picture of oil factories and laboratories in the Kingdom of Saudi Arabia, an oil and gas refinery, the concept of petroleum engineering in the Gulf countries, large and huge warehouses and tanks, petrochemical industries and projects
Offshore mining stations, extraction and export of underground resources, a drilling rig drilling for oil in the middle of the sea at night, quality of industrial tools and equipment, oil storage centers in Saudi Arabia, an oil platform for extracting oil, quality of large illuminated drilling machines
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.
Petroleum engineering work, oil and gas refinery, back view of a group of Saudi Arabian Gulf workers wearing protective suits and helmets supervising oil plants and factories in Saudi Arabia, pipelines extending from the depths of the sea to the refineries
Steel Pipelines and Cables, Petrochemical Industries and Projects, Pollution from Oil Production, Oil and Gas Refinery in Industrial Area, Factories and Plants in Saudi Arabia, Large and Huge Warehouses, Industrial Engineering and Equipment
Quality of oil production laboratories and equipment, adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia, cartoon drawings of a Saudi-Gulf Arab engineer wearing a protective helmet working on an oil refinery, following up on the progress of factory work, Saudi professions and jobs
Engineering professions and jobs, monitoring the progress of factory work, cartoon drawings of a Saudi Gulf Arab engineer wearing a protective helmet, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, quality of oil production plants and equipment, petrochemical industrial projects
Working in the field of petrochemical industries and projects, a group of Saudi Arabian Gulf engineers working in an oil and gas refining plant, following up on the progress of work in factories, the concept of gas productivity in Saudi Arabia, steel pipelines and cables, metal and chemical industries
Oil refinery factories in the Kingdom of Saudi Arabia, the concept of work in the industrial engineering sector, the quality of machinery and equipment in oil extraction factories, modern technologies in oil and gas production.
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.
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 platform for oil extraction, extraction and export of underground resources, drilling rig for oil exploration in the middle of the sea, huge drilling machines, quality of tools and equipment for the manufacture and storage of petroleum
Petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the gas refinery, the renaissance of the Saudi national economy, the view of large and huge warehouses and tanks at sunset, oil factories and laboratories in the Kingdom of Saudi Arabia
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 in the Kingdom, extracting underground resources from the sea, huge machines and heavy equipment used in oil exploration, work in the field of petroleum engineering, oil and gas refining factories in the industrial zone in Saudi Arabia, Saudi economic growth and progress
Follow up the progress of work in factories and plants, a group of Saudi Arabian Gulf engineers working in an oil and gas refining plant, working in the field of petrochemical industries and projects, steel pipelines and cables, the concept of gas productivity in the Kingdom of Saudi Arabia
Pipelines and heavy steel equipment, huge drilling machines used in petroleum extraction, exploration for underground resources in the Kingdom of Saudi Arabia, petrochemical industries and projects in the Kingdom, development of the Saudi economy, work in the field of industrial and petroleum engineering
Economic growth and progress, oil exploration equipment and tools, petrochemical industrial projects, silhouette of the process of extracting oil from desert lands at sunset, adoption of modern techniques and in gas production in the Kingdom of Saudi Arabia, cellulite
Machinery and equipment in oil extraction plants from the depths of the seas, the concept of petroleum engineering, oil factories in the Kingdom of Saudi Arabia, oil and gas refinery, the renaissance of the Saudi national economy, petrochemical industries and projects
Saudi Vision 2030, Integrating Technology with Work, Developing the Saudi Economy, Quality of Petroleum Extraction Tools and Equipment, Selling and Exporting Subsoil Resources, Oil and Gas Exploration Machines, Electronic Screen with Statistical Symbols and Graphics, Rising Stock Market Shares
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
Steel pipelines and cables, gas productivity concept in Saudi Arabia, monitoring the progress of work in factories and plants, a Saudi Arabian Gulf man wearing traditional dress and a shemagh standing in an oil and gas refinery, working in the field of petrochemical industries and projects
Oil factories and plants in the Kingdom of Saudi Arabia, the renaissance of the Saudi national economy, oil and gas refining, the concept of petroleum engineering in the Gulf States, large and huge warehouses and tanks, petrochemical industries and projects
Oil and gas refinery, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories and laboratories in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf countries, lighting towers and metal structures at dawn, large and huge warehouses and tanks
Transporting oil from production sites to distribution stations or refineries, A large truck drives over the soft golden sands of the Saudi Arabian desert, The importance of the energy sector in the economy
The concept of petroleum engineering in the Gulf countries, oil and gas refineries, petrochemical industries and projects, the renaissance of the Saudi national economy, the view of large and huge warehouses and tanks at sunset, oil factories and laboratories in the Kingdom of Saudi Arabia
Lighting of metal structures, factories and plants in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf States, oil refinery, petrochemical industries and projects, the renaissance of the Saudi national economy, large and huge warehouses and tanks overlooking the sea, the view of the full moon shining at night in the sky
Petrochemical industrial projects, quality of oil production plants and equipment, economic growth and progress, adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia, oil refinery in the middle of the desert
Extracting and exporting underground resources, extracting petroleum and oils, a close-up photo of an excavator exploring for oil in the desert at sunset, huge drilling machines, quality tools and equipment for manufacturing and extracting petroleum, white background
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
Quality tools and equipment for petroleum industry and storage, large drilling machines, extraction and export of underground resources, oil refinery for extracting oils, drilling rig for oil exploration in the middle of the sea with helipad
Saudi Arabian Gulf engineer prospecting for underground resources in Saudi Arabia, extracting and exporting underground resources, oil refinery for extracting oils, drilling rig prospecting for oil in the middle of the sea with ships and boats, huge drilling machines, quality of tools and equipment for the petroleum industry and storage
The concept of gas productivity in the Kingdom of Saudi Arabia, monitoring the progress of work in factories and plants, a group of Saudi Gulf Arab engineers working in an oil and gas refining plant, working in the field of petrochemical industries and projects, pipelines and steel cables
Quality tools and equipment for manufacturing and storing petroleum, an oil platform for extracting oils, extracting and exporting underground resources, a close-up photo of a rig exploring for oil in the middle of the sea at sunset, huge drilling machines
View of large and huge warehouses and tanks at sunset, the renaissance of the Saudi national economy, the concept of petroleum engineering in the Gulf countries, petrochemical industries and projects, gas refinery, oil factories and laboratories in the Kingdom of Saudi Arabia
Extraction and export of underground resources in the Kingdom of Saudi Arabia, an oil refinery for extracting oils, a back view of a Saudi Arabian Gulf engineer wearing a helmet and a protective vest monitoring the work, a drilling rig exploring for oil in the middle of the sea at sunset, quality of tools and equipment for the manufacture and storage of petroleum
The view of the sky at dawn, oil factories and factories in the Kingdom of Saudi Arabia, oil and gas refineries, the concept of petroleum engineering in the Gulf countries, lighting towers and metal structures, large and huge warehouses and tanks, petrochemical industries and projects, the renaissance of the Saudi national economy
Supervising oil plants and factories in Saudi Arabia, back view of a Saudi Arabian Gulf worker wearing a protective suit and helmet, pipelines extending from the depths of the sea to the refineries, working in the field of petroleum engineering, oil and gas refinery
Saudi Vision 2030, Integrating Technology with Work, Developing the Saudi Economy, Quality of Petroleum Extraction Tools and Equipment, Selling and Exporting Subsoil Resources, Oil and Gas Exploration Machines, Electronic Screen with Statistical Symbols and Graphics, Rising Stock Market Shares
Oil factories and factories in the Kingdom of Saudi Arabia, the view of large and huge warehouses and tanks at sunset, the renaissance of the Saudi national economy, the concept of petroleum engineering in the Gulf countries, petrochemical industries and projects, gas refinery
An excavator exploring for oil in the desert during the day, import and export of underground resources, quality tools and equipment for manufacturing and storing petroleum, cranes and huge drilling machines for extracting oil and oils.
Snow accumulated on steel pipelines and cables, factories and plants in Saudi Arabia, oil and gas refinery in the industrial area, petrochemical industries and projects, pollution resulting from oil production in winter, huge and large warehouses, industrial engineering and equipment
Steel pipelines and cables, gas production concept in Saudi Arabia, back view of a Saudi Arabian Gulf engineer wearing a jacket and a protective helmet working in an oil refinery, monitoring the progress of work in the factories at sunset, working in the petrochemical industry
Oil and gas refinery, petrochemical projects contributing to the renaissance of the Saudi national economy, metal and chemical industries, oil factories in the Kingdom of Saudi Arabia, quality of oil production plants and equipment, large illuminated industrial facilities
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
The concept of gas productivity in the Kingdom of Saudi Arabia, following up on the progress of work in factories and laboratories, a group of Saudi Gulf Arab engineers working in an oil and gas refining plant, working in the field of petrochemical industries and projects, pipelines and steel cables.
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.
Oil refinery factories at sunset in the Kingdom of Saudi Arabia, the quality of machinery and equipment in oil extraction factories, the concept of work in the industrial engineering sector, modern technologies in oil and gas production.
Petrochemical industries and projects in the Kingdom, Panoramic image of huge drilling machines used to extract oil from the sea at sunset, Exploration for underground resources in Saudi Arabia, Quality of tools and equipment for the manufacture and storage of oil
Oil factories in Saudi Arabia, oil and gas refinery, renaissance of the Saudi national economy, quality of machinery and equipment in oil extraction plants from the depths of the seas, petrochemical industries and projects, concept of petroleum engineering
Oil refineries in Saudi Arabia, concept of work in industrial engineering sector, silhouette of a Saudi Arabian Gulf engineer wearing helmet and safety vest supervising the work of machines, quality of equipment in oil extraction plants, modern technologies in oil and gas production
Quality of petroleum production plants and equipment, steel pipelines and cables, large industrial facilities, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, metal and chemical industries
Oil and gas refinery, oil factories and plants in the middle of nature in the Kingdom of Saudi Arabia, the renaissance of the Saudi national economy, the concept of petroleum engineering in the Gulf countries, large and huge warehouses and tanks, petrochemical industries and projects
Large and huge warehouses and tanks, petrochemical industries and projects, oil and gas refineries, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, fuel factories and plants in the Kingdom of Saudi Arabia
Work in the field of petroleum engineering, oil and gas refinery, a group of Saudi Gulf Arab workers wearing a protective suit and a protective helmet repairing machinery and equipment in oil laboratories and factories in the Kingdom of Saudi Arabia, pipelines extending from the depths of the sea to refineries.
Large and massive warehouses and tanks, lighting towers and metal structures at night, oil factories and laboratories in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf countries, oil and gas refineries, petrochemical industries and projects, the renaissance of the Saudi national economy
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, petroleum engineering concept, oil factories in Saudi Arabia, oil and gas refinery, renaissance of the Saudi national economy, quality of machinery and equipment in factories extracting oil wealth from the depths of the seas
Engineering and urban development of oil refineries, 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
Petrochemical projects contributing to the renaissance of the Saudi national economy, sunset view of the sky with high illuminated structures, petroleum engineering field in the Gulf countries, oil and gas refinery, oil factories and plants in the Kingdom of Saudi Arabia, large and huge warehouses and tanks
Adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia, petrochemical industrial projects, 3D drawings of extracting underground resources by means of a crane pump, economic growth and progress, quality of oil production plants and equipment, gray background
Quality of oil production plants and equipment in the middle of the desert, petrochemical industrial projects, monitoring the progress of the factory, two Saudi Arabian Gulf engineers wearing helmets and protective vests reviewing the plans, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia
Quality tools and equipment for petroleum industry and storage, cranes and huge drilling machines for oil and oil extraction, a drilling rig drilling for oil in the desert during the day, import and export of underground resources
Industrial engineering and equipment, factories and plants in Saudi Arabia, oil and gas refining plant in the industrial area, steel pipelines and cables, petrochemical industries and projects, pollution resulting from oil production, large and huge warehouses
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.
Follow up the progress of work in factories and plants, a group of Saudi Arabian Gulf engineers working in an oil and gas refining plant, working in the field of petrochemical industries and projects, steel pipelines and cables, the concept of gas productivity in the Kingdom of Saudi Arabia
A ship that floats and cleans seawater from oil leaks, oil factories and laboratories in the Kingdom, getting rid of dangerous chemical solutions in the seas, petrochemical industries and projects in Saudi Arabia, preserving the aquatic environment
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
Lighting of towers and metal structures at night, large and huge warehouses and tanks, 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 factories and laboratories in the Kingdom of Saudi Arabia, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, oil and gas refinery, the renaissance of the Saudi national economy, the view of large and huge warehouses and tanks at sunset