Multiple modes are applied to transport the oils, gases and other fluids from one place to another. By filling in the suitable containers and tankers etc. and transporting the gases and fluids is quite common, but the safest and cheapest way is through pipelines.
Any kind of leak whether is of water, gas, chemicals or any other thing is not good. Leakage not only makes the area look dirty and untidy but also is very harmful in certain cases. But sometimes leaks are so tiny that they cannot be seen with a naked eye.