Fuelling stations, also known as coaling stations, are repositories of fuel (coal & later oil) that have been located to service commercial and naval vessels. Today, the term "coaling station" can also refer to coal storage and feeding units in fossil-fuel power stations.
Initially named a coaling station due to the use of coal for steam generation a fuelling station was built for the purpose of replenishing coal supplies for ships or railway locomotives. The term is often associated with 19th and early 20th century seaports associated with blue water navies, who used coaling stations as a means of extending the range of warships. In the late 19th century steamships powered by coal began to replace sailing ships as the principal means of propulsion for ocean transport. Fueling stations transitioned to oil as boilers moved from being coal-fired to oil- or hybrid oil-and-coal-firing, coal being completely replaced as steam engines gave way to internal combustion and gas turbine power plants.