In downstream oil & gas, LPG: a duly authorized natural or juridical person engaged in the direct and exclusive trade or sale of LPG in cylinders to End Consumer whose maximum floor stock is determined by the DOE [Section 3.1(ggg), DOE Department Circular No. DC2022-11-0037, Guidelines on the Registration and Issuance of License to Operate to Qualified DOE-Regulated LPG Industry Participants and Penalizing Certain Prohibited Acts]