(A) Except as otherwise provided by law, the following constitutes the taxable property of a public utility, interexchange telecommunications company, or public utility property lessor that shall be assessed by the tax commissioner:

1. (1) For tax years before tax year 2006:

   1. (a) In the case of a railroad company, all real property and tangible personal property owned or operated by the railroad company in this state on the thirty-first day of December of the preceding year;
   2. (b) In the case of a water transportation company, all tangible personal property, except watercraft, owned or operated by the water transportation company in this state on the thirty-first day of December of the preceding year and all watercraft owned or operated by the water transportation company in this state during the preceding calendar year;

   3. (c) In the case of all other public utilities and interexchange telecommunications companies, all tangible personal property that on the thirty-first day of December of the preceding year was both located in this state and:

      1. (i) Owned by the public utility or interexchange telecommunications company; or
      2. (ii) Leased by the public utility or interexchange telecommunications company under a sale and leaseback transaction.

2. (2) For tax years 2006, 2007, and 2008:

   1. (a) In the case of a railroad company, all real property used in railroad operations and tangible personal property owned or operated by the railroad company in this state on the thirty-first day of December of the preceding year;
   2. (b) In the case of a water transportation company, all tangible personal property, except watercraft, owned or operated by the water transportation company in this state on the thirty-first day of December of the preceding year and all watercraft owned or operated by the water transportation company in this state during the preceding calendar year;
   3. (c) In the case of all other public utilities except telephone and telegraph companies, all tangible personal property that on the thirty-first day of December of the preceding year was both located in this state and either owned by the public utility or leased by the public utility under a sale and leaseback transaction.

3. (3) For tax year 2009 and each tax year thereafter:

   1. (a) In the case of a railroad company, all real property used in railroad operations and tangible personal property owned or operated by the railroad company in this state on the thirty-first day of December of the preceding year;
   2. (b) In the case of a water transportation company, all tangible personal property, except watercraft, owned or operated by the water transportation company in this state on the thirty-first day of December of the preceding year and all watercraft owned or operated by the water transportation company in this state during the preceding calendar year;
   3. (c) In the case of all other public utilities except telephone and telegraph companies, all tangible personal property that on the thirty-first day of December of the preceding year was both located in this state and either owned by the public utility or leased by the public utility under a sale and leaseback transaction, and that is not exempted from taxation under section 5727.75 of the Revised Code;
   4. (d) In the case of a public utility property lessor, all personal property that on the thirty-first day of December of the preceding year was both located in this state and leased, in other than a sale and leaseback transaction, to a public utility other than a railroad, telephone, telegraph, or water transportation company. The assessment rate used under section 5727.111 of the Revised Code shall be based on the assessment rate that would apply if the public utility owned the property, and that is not exempted from taxation under section 5727.75 of the Revised Code.
4. (4) For tax years 2005 and 2006, in the case of telephone, telegraph, or interexchange telecommunications companies, all tangible personal property that on the thirty-first day of December of the preceding year was both located in this state and either owned by the telephone, telegraph, or interexchange telecommunications company or leased by the telephone, telegraph, or interexchange telecommunications company under a sale and leaseback transaction.

5. (5)

   1. (a) For tax year 2007 and thereafter, in the case of telephone, telegraph, or interexchange telecommunications companies, all tangible personal property shall be listed and assessed for taxation under Chapter 5711. of the Revised Code, but the tangible personal property shall be valued in accordance with this chapter using the composite annual allowances and other valuation procedures prescribed under section 5727.11 of the Revised Code by the tax commissioner for such property for tax year 2006, notwithstanding any section of Chapter 5711. of the Revised Code to the contrary.
   2. (b) A telephone, telegraph, or interexchange telecommunications company subject to division (A)(5)(a) of this section shall file a combined return with the tax commissioner in accordance with section 5711.13 of the Revised Code even if the company has tangible personal property in only one county. Such a company also is subject to the issuance of a preliminary assessment certificate by the tax commissioner under section 5711.25 of the Revised Code. Such a company is not required to file a county supplemental return under section 5711.131 of the Revised Code.
6. (6) In the case of an energy company, for tax year 2011 and each tax year thereafter, all tangible personal property that on the thirty-first day of December of the preceding year was both located in this state and either owned by the company or leased by the company under a sale and leaseback transaction, and that is not exempted from taxation under section 5727.75 of the Revised Code.