The heifler lubricating oil coalition brief, the german heifler petroleum chemical group, which is the world's leading petrochemical company, dated back to 1915 when world war i had six large plates of heifler petrochemicals, heiflord hardware and heifler property. Today there are more than 320 branches and companies in 39 countries. There are more than 60 producers on german soil, located in cities such as ludwig, hamburg, stuttgart, manheim and cologne. Heifler ag is the largest of the heifler group. Heifler has his own coal, oil and gas resources. Winterhall ag, an affiliate of heifler, explores, extracts and refines crude oil and natural gas around the world, and also provides raw materials such as gas, additives, base oil, and prune oil to companies under heifler group. The majority of heifler's foreign businesses are in europe and are located in almost all european countries. In addition, there are branches or plants in north america, africa and asia and the pacific. Heifler works in accordance with the principles of sustainable development. In 2002, heifler group sold 32 billion euros (about $34 billion), with more than 89,000 employees worldwide. Heifler is listed as a joint stock company of eu member states. Heifler shares are listed on the stock exchanges in frankfurt (bas), london (bfa), new york (bf), paris (ba) and zurich (bas). Heifler lubricating oil is an integrated petrochemical production base co-financed by the heifler petroleum chemical group of germany, heidell technology co. Ltd. Of beijing, and heifler lubrication limited (tenjin), with a total investment to date of $50 million. Heifler produces approximately 200,000 tons of high-quality car lubricant, anti-frozen fluid, special industrial oil products for the chinese market each year; this corresponds to the rapidly growing market demand for heifer lubricating oil. Heifler lubricant (china) limited began commercial operations in 2008 with a sales volume of approximately $450 million in 2010. The heifler series products were all selected for the international top base oil, additives supplier, infineum (united kingdom), ineos, lubrizol (united states), chevron (united states)