A corporation organized before September 1, 1925, under any law of this state, that operates a line of electric, gas or gasoline, denatured alcohol, or naphtha motor railway in and between municipalities in this state, may:
(1) own and operate union depots and office buildings; and
(2) acquire, hold, and operate electric light and power plants in and adjacent to a municipality in or through which the railway operates.
Official text of the Texas Transportation Code as published by the Texas Legislative Council.