sentence: Prices are based on delivery in New York City harbor, the main cash market trading center.
sentences_before: Investors and suppliers trade contracts that promise the delivery of large amounts of heating oil before a certain date in the future, at a specific price. These futures contracts trade in units of 42,000 gallons, which is the same as 1,000 barrels.
concept_name: price
headings: Heating oil Market info
categories: Fuel Organic compounds Oils