Nahi HPCL bottling plant Ranagapani, Siliguri mein h..which is also known as Numaligarh Refinery Ltd(A subsidiary of Hindusthan Petroleum Corp Ltd).. Waha se jitne bhi BTPN load hote h sab HP oil h Indian Oil ya Bharat Petroleum nahi.. Sab alag alag company h.. BPCL ka koi source North East mein nahi h... Major sources are IOCL, Digboi, Noonmati, Bongaigaon Refinery, Haldia Refinery, Paradeep & Barauni. Isiliye WB,Assam mein aapko Indian Oil hi zyada milenge, BPCL na ke barabar.