Riyoniz Industrial Bitumen Refinery   national refinery limited   Jian City Permanent Honest Natural Perfumery Oil Refinery   Merichem Chemicals & Refinery Services   Atlas Refinery, Inc.   Bongaigaon Refinery & Petrochemicals Ltd.   Rajhans Vegetable Oil Refinery private Ltd.   Rajhans Vegetable Oil Refinery Pvt. Ltd.   Mangalore Refinery and Petrochemicals Ltd.   Gandhar Oil Refinery (India) Ltd.   Brilliant Salt Refinery   Saudi Aramco Shell Refinery Co.   BPCL Kochi Refinery   Bahrain Refinery   Sharjah Oil Refinery   Lindsey Oil Refinery Limited   Gandhar Oil Refinery India Ltd.   Solid Petroleum Refinery   Upper India Smelting and Refinery Works