The concept of gas production in the Kingdom of Saudi Arabia, Saudi professions and jobs, following up on the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, background of an oil refining plant
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.
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.
Huge and large warehouses, monitoring the progress of work in factories, the concept of gas productivity in the Kingdom of Saudi Arabia, a picture from the back of a Saudi Gulf Arab worker wearing a protective uniform watching petrochemical industries and projects, oil refining plants in the Kingdom of Saudi Arabia
Achieving the industrial revolution, adopting modern techniques and technology in engineering, a close-up picture of a Saudi-Gulf Arab engineer wearing glasses and a safety helmet inspecting oil and gas equipment in the factory, Saudi professions and jobs, quality of production and manufacturing
Achieving the industrial revolution, adopting modern techniques and technology in engineering, a close-up picture of a Saudi-Gulf Arab engineer wearing glasses and a safety helmet inspecting oil and gas equipment in the factory, Saudi professions and jobs, quality of production and manufacturing
Monitoring the progress of work in factories, the concept of gas productivity in the Kingdom of Saudi Arabia, Saudi jobs and professions, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the background of an oil refining factory
Adopting modern technologies in gas production in 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, Saudi professions and jobs, background of the oil refining factory.
Adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, quality of oil production laboratories and equipment, cartoon drawings of a Saudi Gulf Arab engineer wearing a protective helmet, following up on the progress of factory work, engineering professions and jobs, petrochemical industrial projects
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, Saudi professions and jobs, background of the oil refining plant.
The concept of gas production in the Kingdom of Saudi Arabia, Saudi jobs and professions, following up on the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, background of an oil refining plant
Extracting oil from desert lands at sunset, economic progress and growth, oil exploration equipment and tools, petrochemical industrial projects, adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia
Working in the industrial engineering sector, a close-up photo of a Saudi Gulf Arab engineer wearing a jacket and a protective helmet standing with crossed hands at his workplace, Saudi laboratories and factories, youth engineering professions and works, standing confidently and looking at the camera
Pipelines and steel equipment, factory and laboratory engineering in the industrial zone in the Kingdom of Saudi Arabia, petrochemical industries and projects, huge and large warehouses,
Monitoring the progress of work in factories, the concept of gas productivity in the Kingdom of Saudi Arabia, Saudi jobs and professions, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the background of an oil refining factory
Saudi professions and jobs, a picture from the back of two Saudi Gulf Arab engineers wearing helmets and protection vests walking in an oil refinery factory, the concept of gas production in the Kingdom of Saudi Arabia, following up on the progress of work in factories, blue sky background
Adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, quality of oil production laboratories and equipment, cartoon drawings of a Saudi Gulf Arab engineer wearing a protective helmet, following up on the progress of factory work, engineering professions and jobs, petrochemical industrial projects
The concept of gas production in the Kingdom of Saudi Arabia, Saudi professions and jobs, following up on the progress of work in factories, a picture from the back of engineers, a picture from the back of a Saudi Arabian Gulf businessman wearing the traditional Saudi thobe standing in a desert area at sunset, the background of an oil refinery factory
The use of modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, the quality of oil production laboratories and equipment, a picture from the back of a Saudi-Gulf Arab businessman wearing the traditional Saudi dress, following the progress of the factory’s work, Saudi professions and jobs, oil refinery background
Standing confidently and looking at the camera, achieving the industrial revolution, Saudi laboratories and factories, working in the industrial engineering sector, a close-up photo of a Saudi Gulf Arab engineer wearing a helmet and safety glasses standing with crossed hands in his workplace, youth engineering professions and works
Quality of oil production plants and equipment, 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
Following the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the concept of gas production in the Kingdom of Saudi Arabia, Saudi professions and jobs, background of an oil refining factory
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.
Saudi youth jobs and professions, 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 standing between pipelines at sunset, the concept of gas production in the Kingdom of Saudi Arabia, background of the oil refining plant
Quality of oil production plants and equipment, 3D illustration of a Saudi Arabian Gulf engineer wearing traditional thobe and ghutra following up on the progress of factory work, Saudi jobs and professions, gas productivity in Saudi Arabia, white background
Factories and laboratory engineering in the industrial zone in the Kingdom of Saudi Arabia, petrochemical industries and projects, huge and large warehouses, pipelines and cables, steel 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
Following up on the progress of the factory’s 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, engineering professions and jobs, petrochemical industrial projects
Following the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the concept of gas production in the Kingdom of Saudi Arabia, Saudi professions and jobs, background of an oil refining factory
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
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
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
Extracting and producing gas in the Kingdom of Saudi Arabia, supervising the progress of work in factories, Saudi professions and jobs, a picture from the back of engineers, a picture from the back of a Saudi-Gulf Arab businessman wearing the traditional Saudi dress standing in a desert area at sunset, background of the oil refining plant
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.
Working in the industrial engineering sector, a close-up picture of a Saudi Gulf Arab engineer wearing a protection helmet repairing equipment and machines in the factory, youth engineering professions and works, Saudi laboratories and factories.
Saudi laboratories and factories, work in the industrial engineering sector, a close-up photo of a Saudi Gulf Arab engineer wearing a jacket and a protective helmet standing with crossed hands at his workplace, youth engineering professions and works, standing confidently and looking at the camera
Saudi professions and jobs, adopting modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, quality of oil production laboratories and equipment, photo from behind of a Saudi Arabian Gulf businessman wearing the traditional Saudi thobe following the progress of factory work, background of the oil refinery
Achieving the industrial revolution, adopting modern techniques and technology in engineering, a close-up image of a Saudi-Gulf Arab engineer wearing glasses and a safety helmet inspecting oil and gas equipment in the factory, Saudi professions and jobs, quality of production and manufacturing
Large and huge warehouses, industrial engineering and equipment, petrochemical industries and projects, steel pipelines and cables, oil and gas refining plant in the industrial area, factories and plants in the Kingdom of Saudi Arabia
Adopting modern technologies in gas production in Saudi Arabia, monitoring the progress of work in factories, Saudi professions and jobs, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and protective vest standing between pipelines at sunset, background of an oil refining plant
Saudi professions and jobs, following up on the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the concept of gas production in the Kingdom of Saudi Arabia, background of an oil refining plant
Adopting modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, following up on the progress of work in factories, a close-up photo of a Saudi Gulf Arab man wearing traditional clothing and medical glasses and looking at the camera, Saudi professions and jobs, oil refinery background.
The concept of work in the industrial engineering sector, the quality of machines and equipment in oil extraction laboratories, modern techniques in oil and gas production, oil refining plants at sunset in the Kingdom of Saudi Arabia.
Engineering, equipment and large industrial warehouses, a close-up of an oil and gas refining plant, petrochemical industrial projects, economic growth and progress, oil and petroleum production in the Kingdom of Saudi Arabia, a view of factory smoke in the air
The use of modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, the quality of oil production laboratories and equipment, a picture from the back of a Saudi-Gulf Arab businessman wearing the traditional Saudi thobe, following the progress of the factory’s work, Saudi professions and jobs, oil refinery background
The concept of gas production in the Kingdom of Saudi Arabia, monitoring the progress of work in factories, a picture from the back of Saudi Gulf Arab workers wearing protective uniforms monitoring petrochemical industries and projects, oil refineries in the Kingdom of Saudi Arabia, huge and large warehouses
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
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.
Following up on the progress of work in factories, the concept of gas production in the Kingdom of Saudi Arabia, Saudi jobs and professions, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the background of an oil refining factory
Oil production in the Kingdom of Saudi Arabia, 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
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
ADNOC Oasis Services in Al Ain City in the Emirate of Abu Dhabi, providing and securing basic services and gas stations for cars in the United Arab Emirates, Abu Dhabi National Oil Company
Huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, liquid nitrogen tanks and heat exchanger coils for industrial gas production, factories and laboratories in the Kingdom of Saudi Arabia
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
Huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, liquid nitrogen tanks and heat exchanger coils for industrial gas production, factories and laboratories in the Kingdom of Saudi Arabia
Following up on the progress of work in factories, the concept of gas production in the Kingdom of Saudi Arabia, Saudi jobs and professions, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the background of an oil refining factory
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
Quality production and manufacturing, achieving the industrial revolution, adopting modern techniques and technology in engineering, a close-up photo of a Saudi-Gulf Arab engineer wearing glasses and a safety helmet inspecting oil and gas equipment in the factory, Saudi professions and jobs
ADNOC Oasis Services in Al Ain City in the Emirate of Abu Dhabi, providing and securing basic services and gas stations for cars in the United Arab Emirates, Abu Dhabi National Oil Company
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
Monitoring and troubleshooting the workflow in factories, the concept of gas productivity in the Kingdom of Saudi Arabia, Saudi engineering professions and jobs, a picture from the back of Saudi Gulf Arab engineers wearing helmets and protection vests walking in an oil refinery factory
Achieving the industrial revolution, adopting modern techniques and technology in engineering, a close-up picture of a Saudi-Gulf Arab engineer wearing glasses and a safety helmet inspecting oil and gas equipment in the factory, Saudi professions and jobs, quality of production and manufacturing
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.
Following up on the progress of work in factories, the interior of a large industrial building equipped with a crane and pipes, adopting modern technologies in gas production in Saudi Arabia, heavy equipment and tools, the concept of engineering and industry
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
Steel pipelines and cables, gas productivity concept in Saudi Arabia, monitoring 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
Monitoring the progress of work in factories and laboratories, the concept of gas productivity in the Kingdom of Saudi Arabia, Saudi professions and jobs, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the background of an oil refining plant
The quality of oil production plants and equipment, the adoption of modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, a picture from the back of a Saudi-Gulf Arab businessman wearing the traditional Saudi thobe, following the progress of the factory’s work, Saudi professions and jobs, oil refinery background
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
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
Factories and laboratories in the Kingdom of Saudi Arabia, oil and gas refining plant in the industrial zone, pipelines and steel cables, petrochemical industries and projects, huge and large warehouses, industrial engineering and equipment.
The concept of gas production in the Kingdom of Saudi Arabia, Saudi jobs and professions, following up on the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, background of an oil refining plant
Oil refinery factories in the Kingdom of Saudi Arabia, the quality of machinery and equipment in oil extraction factories, the use of modern technologies in the production of oils and gas, the concept of work in the industrial engineering sector
Factories and laboratories engineering in the industrial zone in the Kingdom of Saudi Arabia, petrochemical industries and projects, huge and large warehouses, pipelines and steel equipment.
Factories and laboratories of the Kingdom of Saudi Arabia, 3D design of an oil and gas refining plant, Dukhan refinery laboratories, petrochemical industries and projects, huge and large warehouses, engineering and industrial equipment, gray background
Following up on the progress of the factory’s 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, engineering professions and jobs, petrochemical industrial projects
An oil and gas refining plant in the industrial zone in Saudi Arabia, steel pipelines, a fire consuming the pipes connecting parts of the manufacturing and refining machine within the sea, petrochemical industries and projects, pollution and leakage of oil into seawater
Factories and laboratories in the Kingdom of Saudi Arabia, Nahar oil and gas refining plant, Dukhan refinery laboratories, petrochemical industries and projects, huge and large warehouses, engineering and industrial equipment.
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
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.
The quality of oil production plants and equipment, the adoption of modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, a picture from the back of a Saudi-Gulf Arab businessman wearing the traditional Saudi thobe, following the progress of the factory’s work, Saudi professions and jobs, oil refinery background
Adopting modern techniques and technology in gas production in the Kingdom of Saudi Arabia, quality of oil production laboratories and equipment, cartoon drawings of a Saudi Gulf Arab engineer wearing a protective helmet, following up on the progress of factory work, engineering professions and jobs, petrochemical industrial projects
Following up on the progress of work in factories, the concept of gas productivity in the Kingdom of Saudi Arabia, a picture from the back of a Saudi Gulf Arab worker wearing a protective uniform monitoring petrochemical industries and projects, oil refineries in the Kingdom of Saudi Arabia, huge and large warehouses
Following the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the concept of gas production in the Kingdom of Saudi Arabia, Saudi professions and jobs, background of an oil refining factory
Saudi professions and jobs, following up on the progress of work in factories, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the concept of gas production in the Kingdom of Saudi Arabia, background of an oil refining plant
Saudi jobs and professions, adopting modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, quality of oil production laboratories and equipment, picture from behind of a Saudi Gulf Arab businessman wearing the traditional Saudi thobe following the progress of the factory’s work, background of the oil refinery
The quality of machinery and equipment in factories and laboratories, a close-up picture of the hands of a Saudi Gulf Arab woman holding a tablet monitoring the quality of production, a factory for manufacturing metal pipes and taps in the Kingdom of Saudi Arabia, integrating modern technologies into industrial work
Adoption of modern techniques and technology in gas production in the Kingdom of Saudi Arabia, quality of oil production laboratories and equipment, 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
Monitoring the progress of work in factories and laboratories, the concept of gas productivity in the Kingdom of Saudi Arabia, Saudi professions and jobs, a close-up photo from the back of a Saudi Gulf Arab engineer wearing a helmet and a protective vest standing between pipelines at sunset, the background of an oil refining plant
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
The use of modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, the quality of oil production laboratories and equipment, a picture from the back of a Saudi-Gulf Arab man wearing a helmet and a protective vest following the progress of the factory’s work, Saudi professions and jobs, oil refinery background
Integrating modern technology into work, quality of manufacturing and production in Saudi factories, management and supervision of manufacturing mechanism, concept of engineering and industry, close-up photo of two Saudi Gulf workers wearing special clothes operating machines and electrical devices in factories
Management and supervision of the manufacturing mechanism, the concept of engineering and industry, a close-up of the hand of a Saudi Gulf Arab man operating machines and electrical devices in modern factories, productive Saudi labor, quality of industry and production in Saudi factories.
Extracting petroleum and oils, a close-up photo of an excavator exploring for oil in the desert at sunset, huge drilling machines, importing and exporting underground resources, quality tools and equipment for manufacturing and storing petroleum
Quality tools and equipment for manufacturing and extracting petroleum, selling and exporting underground resources, extracting oil and oils, a close-up photo of an excavator exploring for oil in the desert at sunset, huge drilling machines, white background
Two Saudi Arabian Gulf industrial engineers inside the iron factory, supervising the working mechanism of the iron production machine and how to develop it, follow-up to the manufacturing and production process, the concept of engineering and manufacturin
Importing 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 storing petroleum
Huge and large warehouses, industrial engineering and equipment, petrochemical industries and projects, liquid nitrogen tanks and heat exchanger coils for industrial gas production, factories and laboratories in the Kingdom of Saudi Arabia
Oil and gas refining plant in the industrial zone, factories and laboratories in the Kingdom of Saudi Arabia, pipelines and steel cables, petrochemical industries and projects, huge and large warehouses, industrial engineering and equipment.
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
Two Saudi industrial engineers who are partners in the steel factory, verify the quality of the factory's production, in traditional Saudi dress, the concept of engineering and industry
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
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
Following the progress of work in factories, a close-up photo of a Saudi Gulf Arab man wearing traditional clothing and medical glasses and looking at something, adopting modern techniques and technology in oil and gas production in the Kingdom of Saudi Arabia, Saudi professions and jobs, background of the oil refinery.