(a) Except as otherwise provided in subsection (b), if the local law of this state governs perfection of a security interest or agricultural lien, the office in which to file a financing statement to perfect the security interest or agricultural lien is:
(1) the office designated for the filing or recording of a record of a mortgage on the related real property, if:
(A) the collateral is as-extracted collateral or timber to be cut; or
(B) the financing statement is filed as a fixture filing and the collateral is goods that are or are to become fixtures; or
(2) through midnight, December 31, 2012, the office of the circuit clerk in the county in which the debtor is located in this state if the debtor is engaged in farming operations and the collateral is a farm-stored commodity financed by a loan through the Commodity Credit Corporation of the United States Department of Agriculture; or
(3) the office of the Secretary of State, in all other cases, including a case in which the collateral is goods that are or are to become fixtures and the financing statement is not filed as a fixture filing.
(b) The office in which to file a financing statement to perfect a security interest in collateral, including fixtures, of a transmitting utility is the office of the Secretary of State. The financing statement also constitutes a fixture filing as to the collateral indicated in the financing statement which is or is to become fixtures.