Sales of Natural Gas Liquids and Liquefied Refinery Gases@ an annual report@ is the only source of data for the annual sales to consumers and internal company usage of ethane@ propane@ butane@ and pentanes plus. Data are categorized by state and by type of use@ i.e.@ residential and commercial@ industrial@ chemical@ internal-combustion fuel@ and farm. Published in cooperation with the National Propane Gas Association and the Gas Processors Association.