Except to the extent that the parties specifically agree otherwise, an order for unit operations shall not be construed to result in a transfer of all or any part of the title of any person to the oil and gas rights in any tract in the unit area. All property, whether real or personal, that may be acquired in the conduct of unit operations shall be acquired for the account of the persons to whom its cost is allocated, and in that proportion subject to any lien the unit may have thereon to secure payment of unit expense.