appendix a explanatory notes survey design and estimation methods the data presented in this publication include collected by energy information administration eia on weekly monthly surveys released reuters ltd supply are derived from petroleum reporting system wpsrs which comprises six refinery fractionator report 800 bulk terminal 801 product pipeline 802 crude oil stocks 803 imports 804 blenders 805 as part of was designed to collect similar those selected companies inputs production motor gasoline blending operations forms custody basis form importer record reports each shipment entering united states current most recent used
