11. That changed in 1947, when Imperial Oil discovered light oil just south of Edmonton. 12. There are also obtained in the distillation light oils and a product resembling vaseline. 13. Heavy oil is worth less than light oil ; the question is, How much less? 14. They are very active on the line, testing light oil rigs in the winter. 15. He refined the light oils to a water-white burning oil. 16. The chemical is a yellowish clear liquid with a consistency expected of a light oil . 17. Production of condensate, a type of very light oil , also increased for the same reason. 18. Light oil is also used but requires a detergent or solvent during the washing-up phase.19. Currently, only about 27 percent of light oil is recovered, leaving large opportunities for improvement. 20. The sheet of glass is typically lubricated along the cutting line with a light oil .
