Because oil prices are in a foreign country, diesel cheaper in the country. Therefore, the Government has approved to bring tankers into a service station in the middle of the sea, but they must be on the field consistently.
Since diesel is cheaper abroad than in the country. Therefore, the government approved to take the tanker to a service station on the lake. But it has to stay in the area.
Since the prices in foreign countries is cheaper in the country. Therefore, the government approved the tanker to make a service station at sea. But to the area continuously.