The renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, the quality of machinery and equipment in the factories that extract oil wealth from the depths of the seas, the concept of petroleum engineering in the Gulf countries, oil and gas refinery, petrochemical industries and projects
Extract oil wealth from the depths of the seas, 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 in the Kingdom of Saudi Arabia, lighting towers and metal structures at sunset
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
Extract oil wealth from the depths of the seas, 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 in the Kingdom of Saudi Arabia, lighting towers and metal structures at sunset
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, 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
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
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 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
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
Steel pipelines and cables, quality of petroleum production plants and equipment, large industrial facilities, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, metals and chemicals industries
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 factories and plants in the Kingdom of Saudi Arabia, environmental pollution from smoke from oil and gas refineries, the concept of petroleum engineering in the Gulf States, petrochemical industries contributing to the renaissance of the Saudi national economy, large and huge warehouses and tanks, lighting towers and structures at night
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
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
Lighting towers and metal structures at night, oil factories and plants 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, large and huge warehouses and tanks
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
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
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
Metal and chemical industries, oil factories in Saudi Arabia, quality of petroleum production plants and equipment, large illuminated industrial facilities, oil and gas refinery, petrochemical projects contributing to the renaissance of the Saudi national economy
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
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
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
An oil and gas platform for extracting oils, petrochemical industries and projects, 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
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.
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
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
Lighting of 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
Renaissance of the Saudi national economy, oil and gas refineries, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, metal towers and structures in desert lands.
Petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories and laboratories in the Kingdom of Saudi Arabia, oil and gas refineries, the concept of petroleum engineering in the Gulf countries, lighting towers and metal structures at dawn, large and huge warehouses and tanks
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
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.
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
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
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
Oil and gas refineries in the industrial zone in Saudi Arabia, Extracting underground resources from the sea, Petrochemical industries and projects in the Kingdom, Huge machines and heavy equipment used in oil exploration, Working in the field of petroleum engineering, Saudi economic growth and progress
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
Huge industrial facilities illuminated at dawn, quality of petroleum production plants and equipment, 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
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
Working in petroleum engineering, oil and gas refinery, supervising oil plants and factories in Saudi Arabia, back view of two Saudi Arabian Gulf workers wearing orange protective suits and helmets, pipelines extending from the depths of the sea to the 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, 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, towers and metal structures in desert lands, large and huge warehouses and tanks, fuel factories and mines in the Kingdom of Saudi Arabia
Metal towers and structures at night, industrial equipment in warehouses and large tanks, the concept of petroleum engineering in the Gulf countries, oil and gas refineries, petrochemical industries and projects, oil factories and laboratories in the Kingdom of Saudi Arabia
Working in petroleum engineering, oil and gas refinery, supervising oil plants and factories in Saudi Arabia, back view of two Saudi Arabian Gulf workers wearing orange protective suits and helmets, pipelines extending from the depths of the sea to the refineries
Facilities for extracting blanket wealth, petrochemical industries and projects, factories and plants in the Kingdom of Saudi Arabia, a close-up of huge pipes in the middle of the desert, huge and large warehouses, industrial engineering and equipment
Oil factories and plants in Saudi Arabia, Oil and gas refinery, Petroleum engineering concept in Gulf countries, Large and huge warehouses and tanks, Towers and metal structures at sunset, Petrochemical industries and projects
Lighting towers and metal structures in the evening, petrochemical industries and projects, oil and gas refinery, concept of petroleum engineering in the Gulf countries, renaissance of the Saudi national economy, oil factories and plants in the Kingdom of Saudi Arabia, large and large warehouses and tanks
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 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 and gas refining factories in the industrial zone in Saudi Arabia, extracting underground resources from the sea, petrochemical industries and projects in the Kingdom, huge machines and heavy equipment used in petroleum exploration, work in the field of petroleum engineering, Saudi economic growth and progress
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
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
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.
Pipelines extending from the depths of the sea to the refineries, working in the field of petroleum engineering, oil and gas refinery, supervising oil plants and factories in the Kingdom of Saudi Arabia, a picture from the back of two Saudi Arabian Gulf workers wearing protective suits and protective helmets
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
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 factories and plants in the Kingdom of Saudi Arabia, environmental pollution from smoke from oil and gas refineries, the concept of petroleum engineering in the Gulf States, petrochemical industries contributing to the renaissance of the Saudi national economy, large and huge warehouses and tanks, lighting towers and structures at night
The use of modern technologies in the production of oils and gas, the quality of machinery and equipment in oil extraction plants, petroleum refining plants in the Kingdom of Saudi Arabia, the concept of work in the industrial engineering sector.
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.
Metal and chemical industries, oil factories in Saudi Arabia, quality of petroleum production plants and equipment, large illuminated industrial facilities, oil and gas refinery, petrochemical projects contributing to the renaissance of the Saudi national economy
Fuel factories 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, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy
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
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
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
Oil refineries in Saudi Arabia, the concept of work in the industrial engineering sector, the quality of machinery and equipment in oil extraction plants, modern technologies in the production of oils and gas
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.
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
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
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 huge warehouses and tanks
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
Factories and laboratories in the Kingdom of Saudi Arabia, petrochemical industries and projects, pipelines and steel cables, oil and gas refining plant in the industrial zone, huge and large warehouses, industrial engineering and equipment.
Petrochemical industries and projects, oil and gas refineries, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, lighting towers and metal structures at sunset, large and huge warehouses and tanks, oil factories and laboratories in the Kingdom of Saudi Arabia
Oil and gas refinery, petrochemical industries and projects, the concept of petroleum engineering in the Gulf countries, the renaissance of the Saudi national economy, lighting towers and metal structures at sunset, 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, 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
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 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
Oil production in Saudi Arabia, view of smoke from factories in the air, huge industrial engineering, equipment and warehouses, close-up of oil and gas refinery at sunset, petrochemical industrial projects, economic growth and progress
Factories and plants in Saudi Arabia, huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, steel pipelines and cables, oil and gas refining plant in the industrial area
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
Factories and plants illuminated at night in Saudi Arabia, huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, steel pipelines and cables, oil and gas refining plant in the industrial area
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
A view of factory smoke in the air, engineering, equipment and huge industrial warehouses, a close-up of an oil and gas refining plant in the sunset, petrochemical industrial projects, economic growth and progress, oil production in the Kingdom of Saudi Arabia
Factories and plants in Saudi Arabia, Oil and gas refinery in industrial area, Steel pipelines and cables, Petrochemical industries and projects, Pollution resulting from oil production, Huge and large warehouses, Industrial engineering 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
Modern technologies in the production of oils and gas, the quality of machinery and equipment in oil extraction plants, petroleum refining plants in the Kingdom of Saudi Arabia, the concept of work in the industrial engineering sector.
Petrochemical industries and projects, pipelines and steel cables, illustrations of an oil and gas refining plant, factories and laboratories in the Kingdom of Saudi Arabia, huge and large warehouses, industrial cityscape
Sky view at dusk with high illuminated structures, field of petroleum engineering in the Gulf countries, 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, large and huge warehouses and tanks
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
View of factory smoke spreading in the air, oil and gas refining plant, petrochemical industrial projects, economic growth and progress, oil production 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
The concept of petroleum engineering in the Gulf countries, lighting towers and metal structures at sunset, large and huge warehouses and tanks in desert areas, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories and plants in the Kingdom of Saudi Arabia, gas refinery
Petrochemical industries and projects, steel pipelines and cables, oil and gas refining plant in the industrial area, factories and plants in Saudi Arabia, large and huge warehouses, industrial engineering and equipment
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, metal and chemical industries, lighting towers illuminating streets and roads in Saudi Arabia
Pipelines and steel cables, Petrochemical industries and projects, Oil and gas refinery in the industrial area, Factories and plants in the Kingdom of Saudi Arabia, Industrial engineering and equipment, Huge and large warehouses, View of smoke from large industrial facilities at sunset
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
Large industrial facilities, quality gas production plants and equipment, pipelines and steel cables, petrochemical projects contributing to the renaissance of the Saudi national economy, oil factories in the Kingdom of Saudi Arabia, metallurgy and chemical industries.
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 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
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 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
The concept of petroleum engineering in the Gulf countries, lighting towers and metal structures in the evening, petrochemical industries and projects, renaissance of the Saudi national economy, oil factories and plants in the Kingdom of Saudi Arabia, large and large warehouses and tanks, oil and gas refinery
Oil and gas refineries, towers and metal structures in desert lands, large and huge storage tanks, 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 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
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