Ark. Code Ann. § 26-24-103: Assessment of utility property

The Arkansas Public Service Commission shall have the full power and authority in the administration of the tax laws of this state to have the exclusive power of original assessment of both real and personal property used in the operating of carrier pipeline, railroad, street railroad, express, sleeping car, and intercounty bus line companies, and all telegraph, telephone, electric power, cable television, heating, gas, water, water transportation, toll bridge, or ferry, interurban, or other similar companies, associations, or corporations, commonly known as utilities, doing business or owning property in this state.