11. Its customers include companies that produce, transport, and refine oil and natural gas. 12. It ceased refining oil in 1946 and began producing microcrystalline waxes that year. 13. If they take a city that produces or refines oil , concern is high. 14. Its core business is the marketing of crude oil and refined oil products. 15. Not long ago, getting government users to try re-refined oil was challenging enough. 16. More likely, packers use refined oil because it's more consistent and less expensive. 17. Hydrocrackers are used to turn partially refined oil into gasoline and diesel fuel. 18. Coconut and refined oils command a 60 per cent share. 19. Total explores for, produces and refines oil and natural gas. 20. That would deprive Bulgaria of a share in lucrative refined oil exports, he complained.
