With the rise of international crude oil investment, many friends asked about the details of crude oil investment. The quotation unit of crude oil price is "USD/barrel", while domestic crude oil exchanges all quote in RMB. The average proportion of crude oil in the world is generally calculated as 7.3 barrels per ton (42 gallons per barrel produced in the United States) or 1. 1.6 10 kiloliter. Therefore, a barrel of crude oil is about 159 liters or 137 kg. 1 barrel = 158.98 liters =0. 14 tons =42 gallons. American 1 gallon =3.785 liters British 1 gallon =4.546 liters. Gas stations in Europe and America generally take "gallon" as the unit, while gas stations in China take "liter" as the pricing unit. How much is a barrel of crude oil? Because we already know that a barrel of crude oil is about 159 liter. At present, the price of No.92 gasoline in the domestic market is 6.20 yuan/liter, so a barrel of gasoline is 6.20 yuan/liter x 159 liter =985.8 yuan. 1, and the intermediate exchange rate is equal to the weighted average of the buying exchange rate price and the selling exchange rate price.

2. The central parity of RMB exchange rate is the most important reference index for spot interbank foreign exchange market and bank listing exchange rate.

The formation method of the central parity of RMB against USD is as follows: China Foreign Exchange Trading Center makes an inquiry to all market makers in the interbank foreign exchange market before the opening of the daily interbank foreign exchange market, and takes the quotations of all market makers as the calculation samples of the central parity of RMB against USD. After excluding the highest quotation and the lowest quotation, the remaining market makers' quotations are weighted and averaged to get the central parity of RMB against the US dollar on that day, and the weight is comprehensively determined by China Foreign Exchange Trading Center according to the trading volume and quotations of the quotations in the inter-bank foreign exchange market.

The central parity of RMB against Euro, Japanese Yen and Hong Kong Dollar is calculated and determined by China Foreign Exchange Trading Center according to the central parity of RMB against US Dollar on that day and the exchange rates of Euro, Japanese Yen and Hong Kong Dollar against US Dollar in the international foreign exchange market at 9: 00 am.