Comparable Treasury Issue means the United States Treasury security
selected by the Independent Investment Banker as having a maturity comparable to the remaining term of the bonds being redeemed (assuming, for this purpose, that such bonds mature on the Par Call Date) that would be utilized, at the time of
selection and in accordance with customary financial practice, in pricing new issues of corporate debt securities of comparable maturity to the remaining term of the bonds being redeemed (assuming, for this purpose, that such bonds mature on the Par
Call Date).
Comparable Treasury Price means, with respect to any redemption date, (1) the average of five
Reference Treasury Dealer Quotations for such redemption date after excluding the highest and lowest such Reference Treasury Dealer Quotations or (2) if the Independent Investment Banker obtains fewer than five such Reference Treasury Dealer
Quotations, the average of all such Reference Treasury Dealer Quotations.
Independent Investment Banker means one
of the Reference Treasury Dealers that we appoint to act as the Independent Investment Banker from time to time or, if any of such firms is unwilling or unable to select the Comparable Treasury Issue, an independent investment banking institution of
national standing appointed by us.
Reference Treasury Dealer means any of (1) Barclays Capital Inc.,
Citigroup Global Markets Inc., Wells Fargo Securities, LLC and a Primary Treasury Dealer (as defined below) selected by each of Regions Securities LLC, Stephens Inc. and U.S. Bancorp Investments, Inc., or, in each case, an affiliate thereof,
and their respective successors; provided, however, that if any of the foregoing shall cease to be a primary U.S. Government securities dealer in New York City (a Primary Treasury Dealer), we will substitute therefor another Primary
Treasury Dealer, and (2) any other Primary Treasury Dealer selected by the Independent Investment Banker after consultation with us.
Reference Treasury Dealer Quotations means, with respect to each Reference Treasury Dealer and any redemption date, the average, as determined by the Independent Investment Banker, of the bid
and asked prices for the Comparable Treasury Issue (expressed in each case as a percentage of its principal amount) quoted in writing to the Independent Investment Banker at 5:00 p.m. on the third Business Day preceding such redemption date.
Purchase of the Bonds
We or our affiliates may, at any time and from time to time, purchase all or some of the bonds at any price or prices by means other than redemption, whether by tender, in the open market, by private
negotiated agreement or otherwise, subject to applicable law.
Issuance of Additional First Mortgage Bonds
See Description of the New Bonds Issuance of Additional First Mortgage Bonds in the accompanying prospectus for a
description of the bases upon which we are permitted to issue first mortgage bonds under our mortgage and related requirements for such issuance. As of January 31, 2021, we had approximately $1.03 billion of available property additions,
entitling us to issue approximately $618 million principal amount of first mortgage bonds on the basis of property additions, and we could have issued approximately $848 million principal amount of first mortgage bonds on the basis of
retired first mortgage bonds. The amount of first mortgage bonds issuable as of January 31, 2021, on the basis of retired first mortgage bonds does not reflect our repayment at maturity of $350 million of our First Mortgage Bonds, 3.75% Series due
February 15, 2021 and the corresponding increase of $350 million in the amount issuable on the basis of retired first mortgage bonds. The bonds will be issued on the basis of property additions.
Additional Information
For additional information about the bonds, see Description of the New Bonds in the accompanying prospectus, including:
1. additional information about the terms of the bonds,
2. general information about our mortgage and the trustees,
3. a description of certain reservations of rights to amend our mortgage,
4. a
description of certain restrictions contained in our mortgage, and
5. a description of events of default under our mortgage.
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