| skos:altLabel | - oil
- processing
- plants
- petroleum
- oil refineries
- refinery
- refining
- oil refinery
- Refinery
- Oil Refinery
- Petroleum refining
- crude oil distillation unit
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- Refined petroleum
- Refining
- oil plant
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- -refinery
- Crude oil refining
- Engelsberg Refinery
- Middle Distillates
- Oil Refineries
- Oil Refining
- Oil refinement
- Oil refineries
- Oil refiners
- Oil refinery#History
- Oil refinery#Major products
- Oil refining
- Oil_refinery#Safety_and_environment
- PETRONAS Malacca Refinery Complex
- Petroleum Refinery
- Petroleum processing and refining
- Petroleum refineries
- Petroleum-refining industries
- Raffinerie
- chemical refineries
- crude distillation unit, or CDU
- crude oil processing
- crude oil refining
- distilled in open stills
- food oil refinery
- light oil refinery
- middle distillates
- oil production targets
- oil refiner
- oil refinerie
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- oil-distilling factory
- oil-refineries
- oil-refinery
- oil-refining
- petrochemical processes
- petroleum oil refinery
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- processing plants
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- refines
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- refining of petroleum crude oil
- refining technology
- sources of oil production
- systematic petroleum refinery
- world's first large refinery
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