World Trade Petroleum

Exploration and production are deemed to fall within the upstream sector of the oil and gas industry is called Petroleum Engineering. Petroleum engineers help find oil and gas for the country's energy needs. Petroleum engineers design and develop methods for extracting oil and gas from deposits below the Earth's surface. Petroleum engineers also find new ways to extract oil and gas from older wells.

The prices are typically set by market forces through hedging and speculating. Brent crude, which trades on the Intercontinental Exchange (ICE), is the benchmark for global oil prices.The difference between the futures price and spot price of crude oil indicates investor sentiment.The price of oil is mainly determined by the price set by a group of nations called the Organisation of the Petroleum Exporting Countries or OPEC that control the production of most of the oil in the world.

Refining is a process where the separation of various compounds of crude oil occurs. Fractional distillation is a process used to separate its compounds.The crude oil is heated to a temperature of 400-degree Celsius, is fed in at the bottom of the column and heated further.Each also contains a certain amount of dissolved gas and highly corrosive products, such as sulphur or acids, which can sometimes be toxic. Crude oil is a highly variable mixture of heavy and light hydrocarbons that need to be separated in a refinery to turn them into usable products.