The refined oil pipeline is mainly used to transport refined oil to petroleum marketing companies or to transport semi-finished oil to refining enterprises. Its transportation usually starts from refineries and ends at oil storage depots or distribution depots in consuming areas.

In natural gas pipeline transportation, due to high shipping costs of gas compression tanks, the method of direct pipeline transportation is usually employed after gas field production. Gas is compressible, so large gas storage tanks are only set up at gas storage stations, using pressurization through pipelines to control output by adjusting storage.

The advantages of petroleum pipeline transportation are:

1. Large transport capacity with lower infrastructure construction costs compared to railway transport.

2. Less affected by climate factors like typhoons, maintaining long-term stable continuous transport with minimal environmental pollution.

3. Convenient centralized control and management, with high production efficiency.

4. Lower transportation costs and energy consumption. The transportation costs via pipelines range from one-fifth to one-sixth of railway transportation costs, slightly higher than water transportation.

5. Petroleum pipeline transportation has minimal topographical restrictions and generally does not occupy arable land.