【中文版】

原油挂牌价是指原油在交易市场上的公开报价。这个价格通常由交易市场的交易员根据市场供需情况、原油品质、地区差价等各种因素进行评估，并挂在交易市场上进行交易。

原油挂牌价具有公开、透明、可追溯的特点，是原油贸易中重要的价格参考。通过原油挂牌价，贸易双方可以了解当前市场上的原油价格水平，并以此为依据进行贸易谈判和结算。

此外，原油挂牌价还受到许多因素的影响，如国际政治经济形势、原油库存量、产油国政策等。因此，原油挂牌价并不是一成不变的，而是随着市场变化而不断波动。

对于投资者来说，原油挂牌价是获取原油市场信息的重要途径，也是进行原油投资的重要参考指标。通过对原油挂牌价的分析，投资者可以了解原油市场的供需情况、价格走势等，从而制定相应的投资策略。

总的来说，原油挂牌价是原油市场中的重要概念，是贸易双方进行贸易结算的依据，也是投资者进行原油投资的重要参考。

【英文版】

The crude oil listed price refers to the public quotation of crude oil in the trading market. This price is usually evaluated by the traders in the trading market based on market supply and demand, crude oil quality, regional price differences and other factors, and hung in the trading market for trading.

The crude oil listed price has the characteristics of being open, transparent, and traceable, which is an important price reference for crude oil trade. Through the crude oil listed price, both parties can understand the current market price level of crude oil and use it as a basis for trade negotiation and settlement.

In addition, the crude oil listed price is also affected by many factors, such as the international political and economic situation, the amount of crude oil inventory, and the policies of oil-producing countries. Therefore, the crude oil listed price is not fixed and remains constantly changing with market changes.

For investors, the crude oil listed price is an important way to obtain market information and an important reference index for crude oil investment. Through the analysis of crude oil listed prices, investors can understand the supply and demand situation, price trends, etc., of the crude oil market, so as to develop appropriate investment strategies.

Overall, the crude oil listed price is an important concept in the crude oil market, which is the basis for both parties to carry out trade settlement and an important reference for investors to participate in crude oil investment.