Significant changes to the Duke Energy Registrants' debt and credit facilities since December 31, 2011 are as follows:

First Mortgage Bonds. In March 2012, Duke Energy Indiana issued $250 million principal amount of first mortgage bonds, which carry a fixed interest rate of 4.20% and mature March 15, 2042. Proceeds from the issuances were used to repay a portion of Duke Energy Indiana's outstanding short-term debt.

Other Debt. DS Cornerstone, LLC, a 50/50 joint venture entity with a third-party joint venture partner, owns two wind generation projects and has executed a third party financing against the two wind generation projects. In April 2012, Duke Energy and SCOA negotiated a $330 million, Construction and 12-year amortizing Term Loan Facility, on behalf of the borrower, a wholly owned subsidiary of the joint venture. The loan agreement is non-recourse to Duke Energy. Duke Energy received proceeds of $319 million upon execution of the loan agreement. This amount represents reimbursement of a significant portion of Duke Energy's construction costs incurred as of the date of the agreement.

In January 2012, Duke Energy Carolinas used proceeds from its December 2011 $1 billion issuance of principal amount of first mortgage bonds to repay $750 million 6.25% senior unsecured notes that matured January 15, 2012.

In the first quarter of 2012, Duke Energy completed the previously announced sale of International Energy's indirect 25% ownership interest in Attiki Gas Supply, S.A (Attiki), a Greek corporation, to an existing equity owner in a series of transactions that resulted in the full discharge of the related debt obligation. No gain or loss was recognized on these transactions. As of December 31, 2011, Duke Energy's investment balance was $64 million and the related debt obligation of $64 million was reflected in Current Maturities of Long-Term Debt on Duke Energy's Condensed Consolidated Balance Sheets.

On April 4, 2011, Duke Energy filed a registration statement (Form S-3) with the SEC to sell up to $1 billion of variable denomination floating rate demand notes, called PremierNotes. The Form S-3 states that no more than $500 million of the notes will be outstanding at any particular time. The notes are offered on a continuous basis and bear interest at a floating rate per annum determined by the Duke Energy PremierNotes Committee, or its designee, on a weekly basis. The interest rate payable on notes held by an investor may vary based on the principal amount of the investment. The notes have no stated maturity date, but may be redeemed in whole or in part by Duke Energy at any time. The notes are non-transferable and may be redeemed in whole or in part at the investor's option. Proceeds from the sale of the notes will be used for general corporate purposes. The balance as of June 30, 2012 and December 31, 2011, is $209 million and $79 million, respectively. The notes reflect a short-term debt obligation of Duke Energy and are reflected as Notes payable and commercial paper on Duke Energy's Condensed Consolidated Balance Sheets.

At June 30, 2012 Duke Energy had $250 million principal amount of 5.65% senior notes due June 2013 classified as Current maturities of long-term debt on Duke Energy's Condensed Consolidated Balance Sheets. At December 31, 2011, these notes were classified as Long-term Debt on Duke Energy's Condensed Consolidated Balance Sheets. Duke Energy currently anticipates satisfying this obligation with proceeds from additional borrowings.

At June 30, 2012 and December 31, 2011, Duke Energy Carolinas had $400 million principal amount of 5.625% senior unsecured notes due November 2012 classified as Current maturities of long-term debt on its Condensed Consolidated Balance Sheets. Duke Energy Carolinas currently anticipates satisfying this obligation with proceeds from additional borrowings.

At June 30, 2012 and December 31, 2011, Duke Energy Ohio had $500 million principal amount of 5.70% debentures due September 2012 classified as Current maturities of long-term debt on its Condensed Consolidated Balance Sheets. Duke Energy currently anticipates satisfying this obligation with proceeds from additional borrowings, in connection with the Duke Energy Ohio generation asset transfer, as discussed in Note 4.

At June 30, 2012 Duke Energy Ohio had $250 million principal amount of 2.10% first mortgage bonds due June 2013 classified as Current maturities of long-term debt on Duke Energy Ohio's Condensed Consolidated Balance Sheets. At December 31, 2011, these notes were classified as Long-term Debt on Duke Energy Ohio's Condensed Consolidated Balance Sheets. Duke Energy Ohio currently anticipates satisfying this obligation with proceeds from additional borrowings.

Non-Recourse Notes Payable of VIEs. To fund the purchase of receivables, CRC borrows from third parties and such borrowings fluctuate based on the amount of receivables sold to CRC. The borrowings are secured by the assets of CRC and are non-recourse to Duke Energy. The debt is short-term because the facility has an expiration date of October 2012. At June 30, 2012 and December 31, 2011, CRC borrowings were $269 million and $273 million, respectively, and are reflected as Non-recourse notes payable of VIEs on Duke Energy's Condensed Consolidated Balance Sheets.

Money Pool. The Subsidiary Registrants receive support for their short-term borrowing needs through participation with Duke Energy and certain of its subsidiaries in a money pool arrangement. Under this arrangement, those companies with short-term funds may provide short-term loans to affiliates participating under this arrangement. The money pool is structured such that the Subsidiary Registrants separately manage their cash needs and working capital requirements. Accordingly, there is no net settlement of receivables and payables between the money pool participants. Per the terms of the money pool arrangement, the parent company, Duke Energy may loan funds to its participating subsidiaries, but may not borrow funds through the money pool. Accordingly, as the money pool activity is between Duke Energy and its wholly owned subsidiaries, all money pool balances are eliminated within Duke Energy's Condensed Consolidated Balance Sheets. The following table shows the Subsidiary Registrants' money pool balances and classification within their respective Condensed Consolidated Balance Sheets:

	June 30, 2012						December 31, 2011
(in millions)	Receivables		Notes Payable		Long-term Debt		Receivables		Notes Payable		Long-term Debt
Duke Energy Carolinas	$	244	$	―	$	300	$	923	$	―	$	300
Duke Energy Ohio		181		―		―		311		―		―
Duke Energy Indiana		―		113		150		―		300		150

Increases or decreases in money pool receivables are reflected within investing activities on the respective Subsidiary Registrants' Condensed Consolidated Statements of Cash Flows, while increases or decreases in money pool borrowings are reflected within financing activities on the respective Subsidiary Registrants Condensed Consolidated Statements of Cash Flows.

Available Credit Facilities. In November 2011, Duke Energy entered into a new $6 billion, five-year master credit facility, with $4 billion available at closing and the remaining $2 billion became effective July 2, 2012, following the closing of the merger with Progress Energy. The Duke Energy Registrants each have borrowing capacity under the master credit facility up to specified sublimits for each borrower. However, Duke Energy has the unilateral ability at any time to increase or decrease the borrowing sublimits of each borrower, subject to a maximum sublimit for each borrower. See the table below for the borrowing sublimits for each of the borrowers as of June 30, 2012. The amount available under the master credit facility has been reduced, as indicated in the table below, by the use of the master credit facility to backstop the issuances of commercial paper, letters of credit and certain tax-exempt bonds. As indicated, borrowing sub limits for the Subsidiary Registrants are also reduced for certain amounts outstanding under the money pool arrangement.

This summary only includes Duke Energy's master credit facility and, accordingly excludes certain demand facilities and committed facilities that are immaterial in size or which generally support very specific requirements, which primarily include facilities that backstop various outstanding tax-exempt bonds. These facilities that backstop various outstanding tax-exempt bonds generally have non-cancelable terms in excess of one year from the balance sheet date, such that the Duke Energy Registrants have the ability to refinance such borrowings on a long-term basis. Accordingly, such borrowings are reflected as Long-term Debt on the Condensed Consolidated Balance Sheets of the respective Duke Energy Registrant.

		June 30, 2012
(in millions)		Duke Energy (Parent)		Duke Energy Carolinas		Duke Energy Ohio		Duke Energy Indiana		Total Duke Energy
Facility Size		$	1,250	$	1,250	$	750	$	750	$	4,000

	Notes Payable and Commercial Paper		(518)		(300)		―		(216)		(1,034)
	Outstanding Letters of Credit		(20)		(7)		―		―		(27)
	Tax-Exempt Bonds		―		(95)		(84)		(81)		(260)
Available Capacity		$	712	$	848	$	666	$	453	$	2,679

Restrictive Debt Covenants. The Duke Energy Registrants' debt and credit agreements contain various financial and other covenants. The master credit facility contains a covenant requiring the debt-to-total capitalization ratio to not exceed 65% for each borrower. Failure to meet those covenants beyond applicable grace periods could result in accelerated due dates and/or termination of the agreements. As of June 30, 2012, each of the Duke Energy Registrants were in compliance with all covenants related to its significant debt agreements. In addition, some credit agreements may allow for acceleration of payments or termination of the agreements due to nonpayment, or the acceleration of other significant indebtedness of the borrower or some of its subsidiaries. None of the significant debt or credit agreements contain material adverse change clauses.