Neat, legible maps drawn to scale showing the location, size, extensions and any portions abandoned or not used of all pipelines and appurtenant tankage used by the pipeline company or carrier for the transportation of oil, gas or products shall be filed with the department as may be requested but no more often than yearly. This requirement shall not apply to lease lines which are used in the operation of the lease or unit on which located, to any local lines which customarily depend upon gravity (as that term is generally understood in the pipeline industry) for fluid flow, or to any pipeline or appurtenant tankage not located within the State.