Ind. Code § 8-1-2-15
Each public utility shall have an office in one (1) of the towns or cities in this state in which its property or some part thereof is located, and shall keep in said office all books, accounts, papers, and records as shall be required by the commission to be kept within the state. No books, accounts, papers, or records required by the commission to be kept within the state shall be at any time removed from this state, except upon such conditions as may be prescribed by the commission. A majority in number of the board of directors of each and every company or association organized under Indiana statutes and coming under the provisions of this chapter shall be bona fide residents and citizens of the state of Indiana while acting as such directors.
IC 8-1-2-15