Investor Information

Annual Meeting
The 2007 Annual Meeting of Duke Energy Shareholders will be:

Date: Thursday, May 10, 2007
Time: 10 a.m.
Place: O.J. Miller Auditorium,
Energy Center
526 South Church Street
Charlotte, NC 28202

Shareholder Services
Shareholders may call (800) 488‑3853 or (704) 382‑3853 with questions about their stock accounts, legal transfer requirements, address changes, replacement dividend checks, replacement of lost certificates or other services. Additionally, registered users of DUK-Online, our online account management service, may access their accounts through the Internet.

Send written requests to:

Investor Relations
Duke Energy
P.O. Box 1005
Charlotte, NC 28201-1005

For electronic correspondence, visit www.duke-energy.com/contactIR.

Stock Exchange Listing
Duke Energy’s common stock is listed on the New York Stock Exchange. The company’s common stock trading symbol is DUK.

Web Site Addresses
Corporate home page:
www.duke-energy.com
Investor Relations:
www.duke-energy.com/investors

InvestorDirect Choice Plan
The InvestorDirect Choice Plan provides a simple and convenient way to purchase common stock directly through the company, without incurring brokerage fees. Purchases may be made weekly. Bank drafts for monthly purchases, as well as a safekeeping option for depositing certificates into the plan, are available. The plan also provides for full reinvestment, direct deposit or cash payment of dividends. Additionally, participants may register for DUK-Online, our online account management tool.

Financial Publications
Duke Energy’s current annual report, SEC Form 10-K and related financial publications can be found on our Web site at www.duke-energy.com/investors. Printed copies are also available free of charge upon request.

Electronic Delivery
As part of our commitment to sustainability leadership, we are again offering to make a $1 donation to The Nature Conservancy for every shareholder who signs up for electronic delivery of our annual report, proxy statement and our other financial information. Currently, more than 80,000 of you have chosen electronic delivery, and we intend to make an equivalent donation in dollars to The Nature Conservancy. This effort helps preserve our natural resources and significantly reduces our printing and mailing costs.

You only need to sign up once. To enroll in electronic delivery, go to https://www.icsdelivery.com/duk/index.html. To learn more about the work of The Nature Conservancy, visit http://www.nature.org.

Duplicate Mailings
If your shares are registered in different accounts, you may receive duplicate mailings of annual reports, proxy statements and other shareholder information. Call Investor Relations for instructions on eliminating duplications or combining your accounts.

Transfer Agent and Registrar
Duke Energy maintains shareholder records and acts as transfer agent and registrar for the company’s common stock issues.

Dividend Payment
Duke Energy has paid quarterly cash dividends on its common stock for 80 consecutive years. For the rest of 2007, dividends on common stock are expected to be paid, subject to declaration by the Board of Directors, on June 18, Sept. 17 and Dec. 17, 2007.

Bond Trustee
If you have questions regarding your bond account, call (800) 275-2048, or write to:

The Bank of New York
Global Trust Services
101 Barclay Street
New York, NY 10286

NYSE CEO Certification
Duke Energy Corporation has filed the certification of its chief executive officer and chief financial officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 as exhibits to its Annual Report on Form 10-K for the year ended December 31, 2006. In November 2006, Duke Energy Corporation’s chief executive officer, as required by Section 303A.12(a) of the NYSE Listed Company Manual, certified to the NYSE that he was not aware of any violation by Duke Energy Corporation of the NYSE’s corporate governance listing standards.

Send Us Feedback
We welcome your opinion on Duke Energy’s 2006 Summary Annual Report. Please visit www.duke-energy.com/investors, where you can view the online Annual Report and provide feedback on both the print and online versions. Or contact Investor Relations directly.

Duke Energy is an equal opportunity employer. This report is published solely to inform shareholders and is not to be considered an offer, or the solicitation of an offer, to buy or sell securities.