Okla. Stat. tit. 66, § 66-9: Extensions and branches may be built

Any railroad corporation may, under the provisions of this

article, extend its road from any point named in its charter or

articles of organization, or may build branch roads either from any

point on its line of road or from any point on the line of any other

road connecting or to be connected with its road, the use of which

other roads between such points and the connection with its own road

such corporation shall have secured by lease or agreement for a term

of not less than ten (10) years from its date. Before making such

extension or building any such branch road, such corporation shall,

by resolution of its directors, to be entered in the record of its

proceedings, designate the route of such proposed extension or

branch in the manner provided in Section 1376, and file a copy of

such record, certified by the president and secretary, in the office

of the Secretary of State, and cause the same to be recorded as

provided in said Section 1376. Thereupon such corporation shall

have all the rights and privileges to make such extension or build

such branch and receive aid thereto which it would have had if it

had been authorized in its charter or articles of organization. But

this section shall not be construed to authorize any railroad

corporations to consolidate with each other.