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
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
Renaissance of the Saudi national economy, lighting towers and metal structures at night, oil factories and laboratories in the Kingdom of Saudi Arabia, oil and gas refineries, the concept of petroleum engineering in the Gulf countries, large and huge warehouses and tanks, petrochemical industries and projects
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
Petrochemical industries and projects in the Kingdom, development of the Saudi economy, pipelines and heavy steel equipment, huge drilling machines used in oil extraction, exploration for underground resources in the Kingdom of Saudi Arabia, work in the field of industrial and petroleum engineering
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
Smoke rising from factory chimneys and polluting the environment, industrial plants in the Kingdom of Saudi Arabia, development industries contributing to the renaissance of the Saudi national economy, large and huge warehouses and tanks, an industrial station with towers and metal structures, reliance on local national production
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
Oil and gas refinery in industrial area, factories and plants in Saudi Arabia, huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, steel pipelines and cables
Quality of oil production plants and equipment, petrochemical industrial projects, economic growth and progress, adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia, cartoon drawings of an oil refinery in the desert
Oil and gas refinery in industrial area, 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, petrochemical industries and projects, view of smoke from factories in the air at sunset, steel pipelines and cables, factories and plants in the Kingdom of Saudi Arabia, industrial engineering and equipment, huge and large warehouses
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
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
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
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
Pipes and large equipment, the concept of work in the industrial engineering sector, oil refineries in the Kingdom of Saudi Arabia, the quality of machinery and equipment in oil extraction plants, the use of modern technologies in the production of oils and gas
Oil and gas refinery in industrial area, factories and plants in Saudi Arabia, huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, steel pipelines and cables
Saudi professions and jobs, following up on the progress of the factory, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, a picture from the side of a Saudi Gulf Arab engineer wearing a protective jacket and helmet working on the oil refinery, the quality of oil production laboratories and equipment
Petrochemical industries and projects, work in the field of petroleum engineering, a close-up photo of a Gulf engineer wearing a hijab and evaluating the quality of oil factories in the Kingdom of Saudi Arabia, an oil and gas refining plant in the industrial zone
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
Economic growth and progress, oil exploration equipment and tools, petrochemical industrial projects, silhouette of oil extraction process from desert lands at sunset, adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia, Saluit
Steel pipelines and cables, 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
Oil and gas refining plant in the industrial zone, factories and laboratories in the Kingdom of Saudi Arabia, huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, pipelines and steel cables.
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 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.
Steel Pipes and Cables, Oil and Gas Refinery Plant in Industrial Area, Factories and Plants in Saudi Arabia, Large and Huge Warehouses, Industrial Engineering and Equipment, Petrochemical Industries and Projects
Preserving the aquatic environment, petrochemical industries and projects in Saudi Arabia, a ship that floats and cleans seawater from oil leaks, petroleum factories and laboratories in the Kingdom, getting rid of dangerous chemical solutions in the seas
Quality of oil production plants and equipment, Adoption of modern techniques and technology in gas production in Saudi Arabia, Petrochemical industrial projects, 3D drawings of underground wealth extraction by crane pump, Economic growth and progress, White background
Saudi professions and jobs, a picture from the back of two Saudi Gulf Arab engineers wearing helmets and protection vests walking in an oil refining plant, the concept of gas production in the Kingdom of Saudi Arabia, following up on the progress of work in factories
The quality of oil production plants and equipment, Saudi professions and jobs, following up on the progress of the factory, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, a Saudi Gulf Arab engineer wearing a protective jacket and helmet working on the oil refinery
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
Industrial refinery workers walk towards the factory at sunset, working in the field of petrochemical industries and projects, steel pipelines and cables, the concept of gas productivity in the Kingdom of Saudi Arabia, monitoring the progress of work in factories and plants
Pipelines and heavy steel equipment, silhouette from behind of a Saudi Arabian Gulf engineer prospecting for underground wealth in Saudi Arabia, huge drilling machines used in oil extraction at sunset, working in petroleum engineering, salulite
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, working in the field of petroleum engineering
Quality of machinery and equipment in oil extraction plants, oil refineries at sunset in Saudi Arabia, concept of work in the industrial engineering sector, modern technologies in oil and gas production
Petrochemical industries and projects, the renaissance of the Saudi national economy, the concept of petroleum engineering, the oil and gas refinery illuminated at night, 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 seas
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
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
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
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
Cartoon drawings of a Saudi-Gulf Arab engineer wearing a protective helmet working on an oil refinery, quality of oil production laboratories and equipment, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, following up on the progress of factory work, Saudi professions and jobs
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
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
Petrochemical industrial projects, engineering professions and jobs, monitoring the progress of factory work, cartoon drawings of a Saudi Gulf Arab engineer wearing a safety helmet, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, quality of oil production plants and equipment.
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
Oil and oil extraction, underground resources in the Kingdom of Saudi Arabia, quality of oil extraction tools and equipment, silhouette of an excavator exploring for oil in the desert at sunset, Salwit
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
Petrochemical industries and projects, working in the field of petroleum engineering, a picture from the back of a group of Gulf engineers wearing protective suits and helmets assessing the quality of oil factories in the Kingdom of Saudi Arabia, an oil and gas refining plant in the industrial area
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
Drilling rig drilling for oil in the desert during the day, import and export of underground resources, quality of tools and equipment for the manufacture and storage of petroleum, cranes and huge drilling machines for extracting oil and oils
Petrochemical industries and projects, steel pipelines and cables, illustrations of oil and gas refinery plant in industrial area, factories and plants in Saudi Arabia, huge and large warehouses, industrial engineering and equipment
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, large and huge warehouses and tanks, petrochemical industries and projects
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 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
Quality of oil production plants and equipment, use of modern techniques and technology in gas production in Saudi Arabia, close-up image from the back of an Arab Gulf man wearing a helmet and a protective jacket holding a tablet in his hand and following the progress of the factory work, youth professions and jobs, oil refinery background
Following the progress of work in factories, Saudi professions and jobs, a picture from the back of two Saudi Gulf Arab engineers wearing work uniforms walking in an oil refining plant, the concept of gas productivity in the Kingdom of Saudi Arabia, blue sky background
The concept of work in the industrial engineering sector, the quality of machines and equipment in oil extraction laboratories, modern technologies in oil and gas production, petroleum refining plants in the Kingdom of Saudi Arabia.
Oil refinery, petrochemical industries and projects, renaissance of the Saudi national economy, large and huge warehouses and tanks, lighting of metal structures, view of the full moon shining at night in the sky, factories and plants in the Kingdom of Saudi Arabia, the concept of petroleum engineering in the Gulf States
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
The concept of gas production in the Kingdom of Saudi Arabia, following up on the progress of work in factories, a picture from the back of two Saudi Gulf Arab engineers wearing helmets and a protective vest and standing between pipelines at sunset, Saudi professions and jobs, background of the oil refining factory.
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
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
Quality of machinery and equipment in oil extraction plants from deep sea, oil factories in Saudi Arabia, oil and gas refinery, petrochemical industries and projects, petroleum engineering concept, renaissance of the Saudi national economy
Modern techniques and technology in oil production in Saudi Arabia. Back view of a Saudi Arabian Gulf Arab businessman wearing traditional thobe and ghutra following the progress of the factory, large buildings with many pipes, Saudi jobs and professions, oil pipeline background
Petrochemical industries and projects, a large oil refinery equipped with complex machinery in a vast desert landscape and distant mountains, factories and laboratories in the Kingdom of Saudi Arabia, huge and large warehouses, an oil and gas refining plant in the industrial area, industrial engineering and equipment, pipelines and steel cables.
Petrochemical industries and projects, work in the field of petroleum engineering, a close-up photo of a Gulf engineer wearing a protective suit and a protective helmet evaluating the quality of oil factories in the Kingdom of Saudi Arabia, an oil and gas refining plant in the industrial zone
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 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
Petrochemical industries and projects, huge and large temporary storage warehouses, industrial engineering and equipment, petroleum processing in Saudi Arabia’s factories, oil and gas extraction platform in the middle of the sea, sunset view in the sky full of clouds
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, oil and gas refining plants in the industrial zone in Saudi Arabia, Saudi economic growth and progress
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
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
The field of petroleum engineering in the Gulf countries, 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, large and huge warehouses and tanks, the view of the sky at sunrise with high illuminated structures
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 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, towers and metal structures in desert lands, fuel factories and mines in the Kingdom of Saudi Arabia
Oil and gas refinery, petrochemical industries and projects, petroleum engineering concept, 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
Petrochemical industries and projects, working in the field of petroleum engineering, a picture from the back of a group of Gulf engineers wearing protective suits and helmets assessing the quality of oil factories in the Kingdom of Saudi Arabia, an oil and gas refining plant in the industrial area
Steel pipelines and 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, large and huge warehouses, view of smoke from factories in the air at sunset
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.
Following up on the progress of the factory’s work, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, a side photo of a Saudi Gulf Arab engineer wearing a protective jacket and helmet working on the oil refinery at sunset, the quality of oil production laboratories and equipment, Saudi professions and jobs
Large and massive warehouses and tanks, lighting of 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, oil factories and plants in the Kingdom of Saudi Arabia
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
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
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
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
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, a top view of fuel factories and mines 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
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, cartoon drawings of an oil refinery in the desert
Lighting of towers and metal structures, gas refinery, cloudy sky, oil factories and plants in Saudi Arabia, petroleum engineering concept in the Gulf countries, petrochemical industries and projects, large and huge warehouses and tanks
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, a top view of 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
The concept of petroleum engineering in the Gulf countries, oil refinery, petrochemical industries and projects, the renaissance of the Saudi national economy, large and huge warehouses and tanks, lighting of metal structures, factories and plants in the Kingdom of Saudi Arabia
Economic growth and progress, petrochemical industrial projects, monitoring the progress of factory work, cartoon drawings of a Saudi Gulf Arab engineer wearing a safety helmet, adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, quality of oil production plants and equipment.
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
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
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
Quality of oil production plants and equipment, adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia, petrochemical industrial projects, close-up of a group of Saudi Arabian Gulf Arab engineers wearing a protective helmet and holding a tablet device in his hand, following up on the progress of factory work
Saudi jobs and professions, the concept of gas production in the Kingdom of Saudi Arabia, supervising and following up on work inside the plant, a side view of a Saudi Arabian Gulf engineer wearing a helmet and a protective vest inspecting pipelines, background of an oil refinery plant
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
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
Petrochemical industries and projects in the Kingdom, Development of the Saudi economy, Pipelines and heavy steel equipment, Huge drilling machines used in oil extraction, Exploration of underground resources in the Kingdom of Saudi Arabia, Work in the field of industrial and petroleum engineering
Pipelines and steel cables, the concept of gas production in Saudi Arabia, monitoring the workflow in factories, a close-up shot of a group of Saudi Gulf engineers working in an oil and gas refining plant, working in the field of petrochemical industries and projects.
Oil and gas refineries, petrochemical industries and projects, petroleum engineering concept, renaissance of the Saudi national economy, metal structures in desert lands, large and huge warehouses and tanks, 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
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