We also incorporate by reference all documents that we file with the SEC under Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after the date of this prospectus until this offering is completed.

You should rely only on information contained or incorporated by reference in this prospectus. We have not authorized any other person to provide you with different or additional information. If anyone provides you with different or additional information, you should not rely on it. We are not making an offer to sell these securities in any jurisdiction where the offer or sale is not permitted.

You should assume that the information appearing in this prospectus is accurate as of the date of this prospectus only. Our business, financial condition and results of operations may have changed since that date.

References in this prospectus to “Vectren,” “we,” “us” and “our” are to Vectren Corporation.

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Vectren Corporation
Attn: DRIP/Investor Relations Department
20 N.W. Fourth StreetOne Vectren Square
Evansville, IN 47708
Tel No. (812) 491-4000(800) 227-8625
E-mail:vvcir@vectren.com

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THE PLAN

Vectren hereby offers its holders of Common Stockto current and potential shareholders, including eligible employees of the Company and those of its wholly-owned subsidiaries as shall be designated from time to time by the Chief Executive Officer of Vectren, the opportunity to purchase shares of the Company’s Common Stock pursuant to the plan.Plan. The planPlan consists of the following 4143 questions and answers. Answers may reference additional information in other questions.

INTRODUCTION

1.What does the planPlan provide?

The planPlan provides current and potential shareholders an opportunity for all record holders of Common Stock to have dividends reinvested in additional shares of Common Stock to be purchased by the planPlan either on the open market or directly from us in the form of authorized but unissued shares (sometimes referred to as “new issue shares”). We have reserved the right to cause the planPlan to purchase shares on the open market or newly issuednew issue shares as we determine from time to time in our sole discretion. (See answer(Refer to Question 40).41 for more information.)

If participants wish, they may also make voluntary cash payments of not less than $25 per month and not more than $50,000$100,000 in a calendar year. Participants may make these voluntary cash payments whether or not the participants have authorized the reinvestment of Common Stock dividends.

As explained below, the cash dividends and any voluntary cash payments of a participant will be applied by National City Bank,the Company’s transfer agent, acting as agent (see answerthe Plan Administrator (Refer to Question 3)3.), to the purchase of shares of Common Stock at a purchase price determined in the manner set forth in the answer to Question 13. We will pay most expenses incurred in connection with such purchases, including, any brokerage commissions incurred as a result of purchases of open market shares. Charges maywill be incurred by a participant upon the sale of book-entry shares credited to the participant’s account. (See answer(Refer to Question 22).23.) Eligible employees may also participate in the plan. (See answersPlan through payroll deduction. (Refer to Questions 3435 through 39).40.)

PURPOSE

2.What is the purpose of this plan?the Plan?

The purpose of the planPlan is to provide shareholdersparticipants with a simple and convenient way of investing cash dividends and voluntary cash payments in shares of Common Stock without payment of any brokerage commissions or service charges. In addition, eligibleBeneficial owners of shares of Common Stock, whose shares are registered in names other than their own, such as a broker, trustee, or other nominee (“agent”), may participate in the Plan by transferring some or all of those shares to an account established under the Plan. Beneficial owners of shares of Common Stock who desire to participate in the Plan should instruct their agent to initiate the transfer, or such participants can contact the Plan Administrator to request assistance. Investors who do not currently own Common Stock may make an initial purchase through the Plan. (Refer to Question 14.) Eligible employees may investalso participate in the Plan through payroll deduction. To the extent that shares purchased by the plan are newly issued shares, we will receive additional funds for general corporate purposes.

ADMINISTRATION

3.Who administers the plan?Plan?

        National City Bank administersThe Company’s transfer agent, Wells Fargo, acts as the plan and purchases shares of Common Stock as agentPlan Administrator for the plan participants.Plan. The Common Stock acquired by the agentPlan Administrator will either be newly issued shares or shares purchased on the open market or new issue shares, as we determine in our sole discretion. The agentPlan Administrator in purchasing shares on the open market will have, consistent with applicable securities laws and regulations, absolute discretion to determine the volume, timing and price of such purchases. If you decide to participate in the plan,Plan, the agentPlan Administrator will keep a continuous record of your participation in the planPlan and send you a statement of your account under the planPlan after each purchase affecting your account. Shares purchased through the planPlan will be credited in book-entry form to your account.

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You may deposit your Common Stock certificates for conversion to book-entry shares, which will then be credited to your account. This will relieve you of the responsibility for the safekeeping of multiple certificates for shares purchased and protect you against loss, theft, or destruction of stock certificates.

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The Plan Administrator may be contacted as follows:         The agent may be contacted as follows:  Correspondence         All correspondence and inquiries concerning the plan should be directed to:

By Mail:          National City Bank                         Corporate Trust Operations                         P. O. Box 94946                         Cleveland, OH 44101-4946

By E-mail:         shareholder.inquiries@nationalcity.com

	Be sure to include a reference to Vectren Corporation in your correspondence.
	Internet

	We encourage you to access your account information online to perform transactions. Accounts that are registered in the name of an Investment Club, Corporation, or Partnership will not be allowed online access. Please note: additional access restrictions may apply.
	For current shareholders of record: Go to www.shareowneronline.com and sign on. If you are not a registered user, click on “Sign Up Now!” under “I am a Current Shareowner.” You will need your 10-digit account number, a 12-digit Authentication ID and a valid email address. Your account number can be found on your dividend check, dividend deposit notice or account statement. You may request an Authentication ID online or by phone. Your Authentication ID will be sent to your mailing address on file.
	For new investors: Go to www.shareowneronline.com and click on “Direct Purchase Plan,” under the column titled “Invest in a Plan.” Next, simply click on “Invest Now” under the column “New Investors.” Then follow instructions on the “Buy Shares” page.
	After you have successfully signed up, you will be able to access your account immediately. You will also receive written confirmation to your mailing address on file that your account has been activated for online access.
	Once you have activated your account online, you can also:
		•	Authorize, change or stop your Automatic Cash Withdrawal and Investment Service;
		•	Consent for electronic delivery of statements including tax forms;
		•	Sell some or all of your Plan shares if the current market value of the shares to be sold is $25,000 or less.
	Telephone

Shareholder customer service, including sale of shares: 1-800-622-6757.

	TDD: 1-800-622-5571.A telecommunications device for the hearing impaired is available.
	To reach the Plan Administrator, including for the sale of shares, call (866) 614-9636 or (651) 450-4064 (for Participants outside of the United States). The hearing impaired using a TDD can call (651) 450-4144. Customer service representatives are available from 7:00 A.M. to 7:00 P.M. Central Time, Monday through Friday. The interactive voice response is available 24 hours a day, 7 days per week.
	Written Correspondence

Outside the United States and Canada: 1-216-257-8663

An automated voice response system is available 24 hours a day, 7 days a week. Customer service representatives are available from 8:00 a.m. to 5:00 p.m. Eastern time each business day.

Internet

8.

A shareholder may have cash dividends reinvested under the planPlan with respect to all or a portion of the shares of Common Stock registered in the shareholder’s name. Shares registered in the shareholder’s name include both shares held by the shareholder in stock certificate form and book-entry shares credited to the shareholder’s account. If a shareholder has shares of Common Stock registered in more than one name (for example, some shares registered in the name of “John Doe” and others registered in the name “John J. Doe”), or the shares are registered in the name of the shareholder and another person (for example, as a joint tenant with his or her spouse), the shareholder will receive an enrollment authorization formAccount Authorization Form for each such registered name or names.name. In that case the shareholder (and such other person) has the election of completing and signing and returning any or all such enrollment authorization forms.Account Authorization Forms.

9.How may you change investment options?

You may change your investment option at any time by completing and signing a new enrollment authorization formAccount Authorization Form and returning it to the agent.Plan Administrator. (Refer to Question 3.) A change in investment option affecting the reinvestment of cash dividends will be effective on a dividend payment date if the enrollment authorization formAccount Authorization Form or telephone authorization is received by the agentPlan Administrator prior to the related dividend record date. (See(Refer to Question 6).6.) If the enrollment authorization formAccount Authorization Form is received by the agentPlan Administrator on or after the related dividend record date, the change will be effective on the next dividend payment date for the following quarter.date.

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COSTS

10.Are any fees or expenses incurred by participants in the plan?Plan?

Except as provided below, weelsewhere in the Plan, Vectren will pay allthe costs of administration ofto administer the plan,Plan, including service fees and brokerage commissions on purchases of open market shares. However, if a participant requests the agentPlan Administrator to sell all or part of the shares credited to his or her account, the participant will pay a service fee (currently $10)$15), any related brokerage commission (currently $.05$0.12 per share sold) and any other costs due as discussed in the answerrelated costs. (Refer to Question 22.23.)

PURCHASES

11.How many shares of Common Stock will be purchased for a participant?

The number of shares to be purchased for each participant on an investment date will depend on the amount of cash dividends the participant’s dividendsparticipant elects to reinvest and/or voluntary cash payments to be invested and the price per share of Common Stock. Each participant’s account will be credited as of each investment date with that number of shares, including fractions computed to three decimal places, equal to the total amount to be invested on behalf of that participant on that date divided by the purchase price of each share of Common Stock. The purchase price is as determined as provided in the answer(Refer to Question 13.)

12.How and when will shares of Common Stock be purchased under the plan?Plan?

The planPlan permits Common Stock dividends to be reinvested beginning on any dividend payment date (usually March 1, June 1, September 1 and December 1) and voluntary cash payments to be invested beginning on the first day of each month, or the next trading day if any such date should not be a trading day. On each investment date on

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which a dividend is paid, we will pay to the agentPlan Administrator the total amount of dividends payable on the shares subject to dividend reinvestment under the plan.Plan. The agentPlan Administrator will use that amount, along with all voluntary cash payments then held by the agentPlan Administrator under the plan,Plan, to purchase shares of Common Stock for the accounts of participants at the purchase price set forth in the answer to Question 13. If we direct the agentPlan Administrator to purchase shares on the open market, it is expected that the agentPlan Administrator will normally purchase shares beginning on the investment date and will complete the purchases within 30five trading days. However, in purchasing shares on the open market, the agentPlan Administrator will have, consistent with applicable securities laws and regulations, absolute discretion to determine the volume, timing and price of such purchases. Neither Vectren nor any participant will have any authority or power to direct the time or price at which shares will be purchased, or the selection of the broker or dealer through or from whom purchases will be made. If we elect to make available new issue shares for purchase, the agentPlan Administrator will purchase shares of Common Stock from Vectren on the investment date. In months during which dividends are not paid, shares will be purchased with all voluntary cash payments then held by the agentPlan Administrator in the manner described above.

13.What will be the price of shares of Common Stock purchased under the plan?Plan?

The price per share of the open market share purchases of Common Stock for allocation to the accounts of the plan participants as of an investment date will be the weighted average price paid by the agentPlan Administrator for all open market shares which were purchased by the agentPlan Administrator for that month.

If we elect to make available new issue shares for purchase, the price per share of any new issue shares of Common Stock purchased from Vectren on any investment date on behalf of participants in the planPlan will be the closing price of thethose shares of Common Stockas reported on the composite tape on the investment date (or the next trading day if the New York Stock Exchange is closedExchange-Composite Transactions on the relevant investment date).date. If no trading occurs in the Common Stock on the investment date, the purchase price will be the closing price on the next trading day on which shares are traded.

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INITIAL PURCHASES AND VOLUNTARY CASH PAYMENTS

14.How are initial purchases made?

A participant making his or her initial purchase of Common Stock through the Plan should submit a check in an amount not less than $500 or more than $100,000, plus a $10 enrollment fee together with an Account Authorization Form to the Plan Administrator. Participants will be charged a return fee on any returned checks. Alternatively, a new participant may arrange to have the purchase price deducted from a designated account in a United States or Canadian bank or financial institution in U.S. Dollars. (Refer to Questions 16 and 17.) Investors may not invest more than $100,000 per calendar year. The Plan Administrator will return any excess tendered amount to the investor. Purchases will be made on behalf of a new participant in the Plan on the first day of the next succeeding month, or on the next trading day if such date is not a trading day, following the Plan Administrator’s receipt of the payment and Account Authorization Form from the participant, except that initial purchase payments received by the Plan Administrator less than three business days before the end of a calendar month may, at the Plan Administrator’s discretion, be invested either in the next succeeding month or in the month following the next succeeding month. No interest is paid on initial purchase payments pending investment. The Plan Administrator will return an initial purchase payment to an investor upon telephone or written request received at least three business days prior to the investment date.

15.How does the cash payment option work?

Voluntary cash payments received from the participant by the agentPlan Administrator prior to an investment date will be invested each month to purchase shares of Common Stock. The agentPlan Administrator will return voluntary cash payments to a participant upon telephone or written request from a participant received at least twothree business days prior to the investment date.

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If a shareholder wishes to participate only through the investment of voluntary cash payments, the shareholder must check the “VOLUNTARY CASH PAYMENTS ONLY (NO DIVIDEND REINVESTMENT)” box on the enrollment authorization form.Account Authorization Form.

15.     16.How are voluntary cash payments made by check or money order?check?

The option to make cash payments by check or money order is available to participants each month. Voluntary cash payments by a participant cannot be less than $25 per paymentmonth or more than a total of $50,000$100,000 in a calendar year. If the agentPlan Administrator receives payments totaling more than $50,000$100,000 in a calendar year from a participant, the amount by which the payments exceed $50,000$100,000 will be returned to the participant.

A voluntary cash payment may be made by a participant when enrolling by enclosing a check or money order indrawn on a United States dollarsor Canadian bank in U. S. Dollars (made payable to “National City Bank”“Shareowner Services”) with the enrollment authorization form.Account Authorization Form. Thereafter, voluntary cash payments may be made through the use of cash payment forms attached to each participant’s statement of account. The same amount of money need not be sent each month and there is no obligation to make a voluntary cash payment each month. Participants will be charged a return fee on any returned checks.

16.     17.How are voluntary cash payments made by automatic monthly deductions?electronic funds transfer?

You may make voluntary cash payments of not less than $25 per transactionmonth nor more than $50,000$100,000 in a calendar year by means of a monthly automatic electronic funds transfer or a one-time bank debit from a predesignated account at a United States or Canadian bank or financial institution.institution in U.S. Dollars. If the agentPlan Administrator receives payments totaling more than $50,000$100,000 in a calendar year from you, the amount by which the payments exceed $50,000$100,000 will be returned to you. A new participant in the Plan must make an initial investment of not less than $500 or more than $100,000.

To initiate automatic monthly deductions or a one-time bank debit, you must complete and sign an authorization form forAccount Authorization Form with the automatic deductions section completed and return it to the agentPlan Administrator together with a voided blank check or savings account deposit slip for the account from which funds are to be drawn. Forms will be processed and will become effective as promptly as practicable; however, you should allow four to six weeks for your first automatic investment to be initiated.

Once automatic monthly deductions are initiated, funds will be drawn from your designated bank account on the 15th15^th day of the month preceding eachmonth. Participants who invest through automatic monthly investment date.deductions are not subject to having their participation in the Plan terminated by the Company if they hold fewer than ten shares in their Plan account. (Refer to Question 43.)

You may change the amount of your automatic monthly deduction by completing and submitting to the agentPlan Administrator a new authorization form for automatic deductions. If you close or change a bank account, a new authorization form for automatic deductions must be completed and submitted to the agent.Account Authorization Form. To be effective with respect to a particular investment date, the new authorization form for automatic deductions must be received by the agentPlan Administrator by the 14th12^th day of the month preceding such investment date. If you close or change a bank account, a new form must be completed and submitted to the Plan Administrator. Changes will be processed and become effective as promptly as practicable; however, you should allow four to six weeks for your change to take effect. You may discontinue automatic deductions by notifying the agentPlan Administrator by telephone or in writing.

17.     18.Will interest be paid by Vectren or the agentPlan Administrator on the cash payment by a new participant to make an initial purchase or on any voluntary cash payments made under the plan?Plan?

No. Interest will not be paid by Vectren or the agentPlan Administrator on the initial purchase amount submitted by new participants or on any voluntary cash payments held pending investment under the plan.Plan.

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Therefore, it is suggestedwe recommend that anynew participants and participants making voluntary cash payment you wish to make be sentpayments send their cash payments so as tothat they reach the agentPlan Administrator as close as possible and prior to the investment date. A participant should be aware of possible delays in the mail if payment is to be made in that manner. Accordingly, it is recommended that a participant mail the cash payment for an initial purchase or any voluntary cash payment no later than ten days prior to an investment date.

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REPORTS TO PARTICIPANTS

18.     19.What kind of reports will be sent to participants in the plan?Plan?

You will receive a statement of your account after each purchase for your account showing the amounts invested, purchase prices, shares purchased and other relevant information.These statements are your continuing record of purchases and should be retained for income tax purposes.In addition to a prospectus for the plan, youYou will also receive either paper or electronic copies of the same communications sent to every other shareholder, that is, theincluding our Annual Report to shareholders, proxy solicitation materials and dividend information required by the Internal Revenue Service to be furnished by us and the agent.Plan Administrator.

DIVIDENDS

19.     20.Will you receive cash dividends on fractional interests in shares credited to your accounts?

Yes. Dividends on fractional share interests will be either reinvested in Common Stock or sent directly to you, depending upon your selected investment option. (Refer to Question 11.)

CERTIFICATES FOR SHARES

20.     21.Will certificates be issued for shares of Common Stock purchased?

Shares of Common Stock purchased under the planPlan will be registered in the name of the agent (orWells Fargo, or its nominee),nominee, as agentPlan Administrator for participants in the plan;Plan, and certificates for such shares will not be issued to participants except upon telephone or written request. The number of shares credited to your account under the planPlan will be shown on your statement of account. This procedure protects against loss, theft or destruction of stock certificates.

Shares credited to your account may be withdrawn by accessing your account online, or by notifying the agentPlan Administrator by telephone or in writing specifying the number of shares to be withdrawn. Certificates for whole shares of Common Stock so withdrawn will be issued to and registered in your name (see(Refer to Questions 2122 and 26).27.) If Vectren, in its sole discretion, elects to terminate the participation in the Plan by a participant holding fewer than ten shares of Common Stock in the participant’s Plan account, the Plan Administrator will transfer to book-entry registration in such participant’s name all whole shares, and will pay to such participant the value of any fractional shares (less certain costs), in such Plan account. (Refer to Question 43.)

Shares credited to your account may not be pledged. If you wish to pledge such shares, you must request that certificates for such shares be issued in your name.

21.     22.In whose name will certificates be registered when issued?

Upon online, telephone or written request by the participant, certificates will be issued in the name in which the participant’s account is maintained,maintained. If you wish to register the shares in another name or in such other names as may be designatedtransfer the shares to someone else, you will need to provide the Plan Administrator with a completed Stock Power form. Stock power forms are available online or upon receipt of appropriate instruments of assignment.request from the Plan Administrator. (Refer to Question 3.)

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SALE OF SHARES

22.     23.May you sell book-entry shares credited to your account?

Yes. You may request the agent toPlan Administrator sell any number of book-entry shares credited to your account. You may do so by accessing your account online, by completing the information on the bottom portion of your account statement or by giving detailed written instructions to the agent.Plan Administrator. Alternatively, you may call the agent at 1-800-622-6757.Plan Administrator. In order to sell via the telephone, you will need your Authentication ID provided by the Plan Administrator. (Refer to Question 3.) Sales are made daily and the agentPlan Administrator will initiate the sale as soon as practicable after receiving the notification. Notification must be received by the agentPlan Administrator no later than 11:00 a.m. Eastern time. Notifications received after 1l:11:00 a.m. will be processed on the next trading date. Sales will be made for your account on the open market through a securities broker designated by the agent.Plan Administrator. You will receive the proceeds, less an applicable service fee (currently $10)$15) and brokerage commission (currently $.05$0.12 per share sold). Proceeds of shares will be paid to you by check mailed no later than 7 days after the date of sale.

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DEPOSIT OF STOCK CERTIFICATES

23.     24.May you deposit your Common Stock certificates with the agentPlan Administrator for conversion to book-entry shares?

Yes. At the time of enrollment in the plan,Plan, or at any later time, you may deposit any Common Stock certificates in your possession with the agentPlan Administrator for credit as book-entry shares to your account. If a certificate issuance is later requested, a new, differently numbered certificate will be used.issued.

If you wish to deposit your Common Stock certificates, you must mail your request and your certificate to the agent.Plan Administrator. The certificates should not be endorsed.

It is recommended that certificates be sent to the agentPlan Administrator by registered, express or certified mail, return receipt requested and insured for possible mail loss for 2% of the market value (minimum of $10.00); thisvalue. This represents your replacement costs if the certificates are lost in transit to the agent.Plan Administrator. To calculate the market value, multiply the number of shares represented by the certificate you are mailing by the current price per share. Insurance covers the replacement of shares of Common Stock, but in no way protects against any loss resulting from fluctuations in the value of such shares from the time you mail the certificates until replacements are made.

	Optional Mail Loss Insurance
	Please be advised that choosing registered, express or certified mail alone will not protect you should your certificates become lost or stolen. The Plan Administrator can provide low-cost loss insurance for certificates being returned for conversion to book-entry form. Mail loss insurance covers the cost of the replacement surety bond only. Replacement transaction fees may also apply. To take advantage of the optional mail loss insurance, simply include your $10 check, made payable to “WFSS Surety Program,” along with your certificate and instructions.
	To qualify for this service you must choose to use a traceable mail delivery service such as Federal Express, United Parcel Service, U.S. Postal Service Registered Mail, among others. Any one shipping package may not contain certificates exceeding a total value of $100,000. Claims related to lost certificates under this service must be made within 60 days of the documented delivery service mail date. This is specific coverage for the purpose of converting shares to book-entry form and the surety is not intended to cover certificates being tendered for certificate breakdown or exchange for other certificates.

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STOPPING DIVIDEND REINVESTMENT

24.     25.May you stop dividend reinvestment or voluntary cash payment investments?

You may discontinue the reinvestment of cash dividends by changing your investment option as specified in the answers to Questions 7 and 9. Moreover, you may request in writing that the agentPlan Administrator return any uninvested voluntary cash payment, made, and such a request will be honored if the agentPlan Administrator receives the request at least twothree business days before the investment date on which the voluntary cash payment would otherwise be invested.

25.     26.When may you stop reinvesting dividends under the plan?Plan?

You may stop reinvesting dividends under the planPlan any time by accessing your account online or by giving the agentPlan Administrator notice in writing or by telephone. If the request to discontinue dividend reinvestment is received by the agentPlan Administrator on or after the record date for a dividend payment, such request may not become effective until any dividend paid on the dividend payment date has been reinvested and the shares of Common Stock purchased are credited to your account. The agent,Plan Administrator, in its sole discretion, may either pay any such dividend in cash or reinvest it in Common Stock on your behalf. If such dividend is reinvested, the agentPlan Administrator may sell the shares purchased and remit the proceeds to you, less any service fee, any brokerage commission and any other costs of sale. See Question 6 above for an example of approximate timing of dividend record and payment dates.

ACCOUNT MANAGEMENT
27.		ACCOUNT MANAGEMENT

26.     What options are available to you regarding transfers of shares?

		Gift/Transfer of Shares

		If you wish to transfer the ownership of all or part of the shares credited to your account to an account for another person, whether by gift, private sale or otherwise, you may effect such transfer by mailing a properly executed Stock Power form to the Plan Administrator. Transfers of less than all of your book-entry shares must be made in whole share amounts. Requests for transfer are subject to the same requirements as the transfer of Common Stock certificates, including the requirement of a Medallion Guarantee, which can be obtained from a financial institution such as a bank or broker, on the Stock Power form. Stock Power forms are available online or upon request from the Plan Administrator. (Refer to Question 3.) Share transfer forms are also attached to account statements.
		Shares so transferred will continue to be held in book-entry form by the Plan Administrator. An account will be opened in the name of the recipient if he or she is not already a participant, and such recipient will automatically be enrolled in the Plan. If the recipient is not already a participant, the account will be enrolled under the full reinvestment option unless the donor specifies differently. The recipient may change the investment option after the gift has been made. (Refer to Question 9.)
		If a transfer involving ALL shares in your account is received after a record date but before the related dividend payment date, the transfer will be processed when received, and a cash dividend will be paid to you. You may return the dividend check as an optional cash payment.
		You will receive a statement showing the transfer of shares.
	If you wish to transfer the ownership of all or part of the shares credited to your account to an account for another person, whether by gift, private sale or otherwise, you may effect such transfer by mailing a properly executed stock power to the agent. Transfers of less than all of your book-entry shares must be made in whole share amounts. Requests for transfer are subject to the same requirements as the transfer of Common Stock certificates, including the requirement of Medallion Guarantee on the stock power. Stock Power forms are available upon request from the agent. Share transfer forms are also attached to account statements.

Shares so transferred will continue to be held in book-entry form by the agent. An account will be opened in the name of the recipient if he or she is not already a participant, and such recipient will automatically be enrolled in the plan. If the recipient is not already a participant, the account will be enrolled under the full reinvestment option unless the donor specifies differently. The recipient may change the investment option after the gift has been made as described under Question 9 above.

If a transfer involving ALL shares in your account is received after a record date but before the related dividend payment date, the transfer will be processed when received, and a cash dividend will be paid to you. You may return the dividend check as an optional cash payment.

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          You will receive a statement showing the transfer of shares.

	Direct Registration System/Broker-Dealer Accounts
		Transfer shares from a broker account: Shareholders who own shares of Common Stock that are held by an agent in street or nominee name may instruct their agent to have some or all of their shares transferred into the shareholder’s name in direct registration system book-entry form. The direct registration system permits an investor to hold Common Stock as the registered owner of the Common Stock in book-entry form on our

Transfer shares from a broker account: Shareholders who own shares of Common Stock that are held by a bank, broker, or trustee in street or nominee name may instruct their broker to have some or all of their shares transferred into 13 books rather than (1) indirectly through an agent that holds the Common Stock in street name or in an account with a depository or (2) in the form of a stock certificate. Simply instruct the agent to re-register the shareholder’s name in direct registration system book-entry form. The direct registration system permits an investor to hold Common Stock as the registered owner of the Common Stock in book-entry form on our books rather than (1) indirectly through a financial intermediary that holds the Common Stock in street name or in an account with a depository or (2) in the form of a stock certificate. Simply instruct your bank, broker or trustee to re-register your shares through the direct registration system and specify book-entry registration. Transfer shares to a broker account: To electronically transfer all or part of your book-entry shares held by the Plan Administrator to a broker account, you must establish a broker account number on your account with the Plan Administrator. To establish a broker account number, you must complete an “authorization to provide broker/dealer information” form, available upon request from the Plan Administrator or the broker (Refer to Question 3.) Once a broker account number is established, you can then instruct the Plan Administrator to deliver to your broker the number of full shares you specify. The Plan Administrator will electronically deliver shares within two business days of receiving and accepting instructions. The signature(s) on the authorization to provide broker/dealer information form should be guaranteed by the broker with a Medallion Guarantee. Transfer shares to a broker account: To electronically transfer all or part of your book-entry shares held by the agent to a broker account, you must establish a broker account number on your account with the agent. To establish a broker account number, you must complete an “authorization to provide broker/dealer information” form, available upon request from the agent (1-800-622-6757) or a broker. Once a broker account number is established, you can then instruct the agent to deliver to your broker the number of full shares you specify. The agent will electronically deliver shares within two business days of receiving and accepting instructions. The signature(s) on the authorization to provide broker/dealer information form should be guaranteed by the broker/dealer with a Medallion Guarantee. OTHER INFORMATION 27.     28.What happens if we issue a stock dividend or declare a stock split? Any stock dividends or split shares of Common Stock distributed on shares credited in book-entry form to your account or held by you in the form of stock certificates will be credited in book-entry form to your account. 28.     29.If we have a rights offering, how will the shares of Common Stock credited to your account be handled? Participation in any rights offering will be based upon boththe aggregate number of shares of Common Stock held bythat you hold in stock certificate form and any whole book-entry shares credited to your account.account, including those held in the Plan. 29.     30.What happens when you sell or transfer all of your shares of Common Stock in stock certificate form? If you dispose of all your shares of Common Stock in stock certificate form, then the agentPlan Administrator will continue to either reinvest the cash dividends, or send the cash dividends directly to you, on the book-entry shares of Common Stock credited to your account and held in the Plan, depending upon your investment option, until you notify the agentPlan Administrator in writing to the contrary. Voluntary cash paymentsYou may continue to be made by youmake voluntary cash payments as long as there are whole or fractional shares credited to your account. IfVectren reserves the right, however, to terminate the participation in the Plan by any participant holding fewer than ten shares of Common Stock in the participant’s Plan account. (Refer to Question 43.) In addition, if you hold less than one full share, we may from time to time may instruct the agentPlan Administrator to sell the fractional share and forward the proceeds, less any service fee, brokerage commission and any other costs of sale, to you.you, and terminate your participation in the Plan. 30.     31.What are the responsibilities of Vectren and the agentPlan Administrator under the plan?Plan?         NeitherIn administering the Plan, neither Vectren, the Plan Administrator nor theany independent agent as plan administrator, will beis liable for any act done in good faith or for any good faith act or omission to act, including but not limited to any claim of liability (i) arising out of the failure to cease reinvesting dividends for yourterminate a Participant’s account upon yoursuch Participant’s death prior to receipt of a notice in writing of such death, (ii) with respect to the prices or times at which shares are purchased or sold, for your account,or (iii) as to the times when purchases or sales are made or fluctuations in the market value of the shares acquired for Participants. Selling Participants should be aware that the share price of Vectren common stock.stock may fall or rise during the period between a request for sale, its receipt by the Plan Administrator, and the ultimate sale in the open market. You should evaluate these possibilities while deciding whether and when to sell any shares through the Plan. The price risk will be borne solely by you. You should recognize that neither Vectren nor the agentPlan Administrator can provide any assurance of a profit or protection against loss on any shares purchased or sold under the plan.Plan. 1014 The Plan Administrator is authorized to choose a broker/dealer, including an affiliated broker/dealer, at its sole discretion to facilitate purchases and sales of common stock by Plan Participants. The Plan Administrator will furnish the name of the registered broker/dealer, including any affiliated broker/dealer, utilized in share transactions within a reasonable time upon written request from the Participant. The Plan Administrator is acting solely as Plan Administrator of Vectren and owes no duties, fiduciary or otherwise, to any other person by reason of this Plan, and no implied duties, fiduciary or otherwise, shall be read into this Plan. The Plan Administrator undertakes to perform such duties and only such duties as are expressly set forth herein to be performed by it and no implied covenants or obligations shall be read into this Plan against the Plan Administrator or Vectren. In the absence of negligence or willful misconduct on its part, the Plan Administrator, whether acting directly or through agents or attorneys, shall not be liable for any action taken, suffered, or omitted or for any error of judgment made by it in the performance of its duties hereunder. In no event shall the Plan Administrator be liable for special, indirect or consequential loss or damage of any kind whatsoever (including but not limited to lost profit), even if the Plan Administrator has been advised of the likelihood of such loss or damage and regardless of the form of action. The Plan Administrator shall: (i) not be required to and shall make no representations and have no responsibilities as to the validity, accuracy, value or genuineness of any signatures or endorsements, other than its own; and (ii) not be obligated to take any legal action hereunder that might, in its judgment, involve any expense or liability, unless it has been furnished with reasonable indemnity. The Plan Administrator shall not be responsible or liable for any failure or delay in the performance of its obligations under this Plan arising out of or caused, directly or indirectly, by circumstances beyond its reasonable control, including, without limitation, acts of God, earthquakes, fires, floods, wars, civil or military disturbances, sabotage, epidemics, riots, interruptions, loss or malfunctions of utilities, computer (hardware or software) or communications services, accidents, labor disputes, acts of civil or military authority or governmental actions; it being understood that the Plan Administrator shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances. 31.     32.How will your shares be voted at meetings of shareholders? For each meeting of shareholders, you will receive the same proxy materials that we deliver to shareholders who do not participate in the Plan, including either paper or electronic versions of our Annual Report to shareholders and proxy solicitation materials. This material will enable you to vote bothall of the shares credited to your account, including shares held by you in stock certificate form and/orand book-entry shares. You may elect, in the alternative, to vote the shares credited to your account. If you elect, all shares may be votedaccount in person at the shareholders’ meeting. FEDERAL INCOME TAX CONSEQUENCES 32.     33.What are the federal income tax consequences of participation in the plan?Plan? If you reinvest dividends under the plan,Plan, you will be treated for federal income tax purposes as having received a dividend in an amount equal to the cash dividend reinvested in shares of Common Stock under the planPlan even though that amount is not actually received in cash but, instead, is applied to the purchase of shares for your account. In addition, general rulings issued by the Internal Revenue Service indicate that your share of brokerage commissions for purchases of open market shares (which will be paid by us)Vectren) will be taxable as dividend income to you. Your adjusted basis in the shares of Common Stock acquired under the planPlan will be equal to the amount required to be treated as a dividend, including any brokerage commissions allocated to such purchases. Common Stock purchased with voluntary cash payments will be treated in the same manner as Common Stock purchased outside of the plan.Plan. Your adjusted basis in such shares will be equal to the price paid, increased by any brokerage commission (which will be paid by us)Vectren) allocated to such purchases and treated as dividend income. You will not realize any taxable income when you receive certificates for whole shares credited to your account upon a request for such certificates. However, if you receive, upon request, a cash payment for the sale of 15 whole and/or fractional shares credited to your account, you will realize gain or loss measured by the difference between the amount of the cash received and your basis in such shares or fractional shares. Such gain or loss will be capital in character if such shares or fractional shares are a capital asset in your hands. For further information as to tax consequences of participation in the plan,Plan, you should consult with your own tax advisors. The tax information in this Question 3233 is provided solely as a guide to you and may be subject to change by future legislation. You are advised to consult your own tax advisors as to the federal and state income tax effects of participation in the plan.Plan. 33. What provision is made for domestic and foreign shareholders whose dividends are subject to federal income tax withholding? Emergency Economic Stabilization Act of 2008 Effective January 1, 2012, Treasury Regulation 1.1012-1(e)(6)(i) will enable participants in certain dividend reinvestment plans to use the “average basis method” when determining the tax basis of any shares sold. Participants in the Plan will not qualify for this treatment, however, because the Plan does not require that participants reinvest at least 10 percent of the dividends (if any) paid on the shares they hold under the Plan in additional shares of Common Stock. Consequently, participants in the Plan will not be able to use the “average basis method” in determining the tax basis of any shares they sell under the Plan. The Plan assumes that each participant will use the first-in, first-out “FIFO” method when determining the tax basis of any shares sold. Participants may designate their preference for “specific identification” cost basis at any time by identifying this preference in writing to the Plan Administrator. 34. What provision is made for domestic and foreign shareholders whose dividends are subject to federal income tax withholding? Federal law requires the agentPlan Administrator to withhold an amount (currently 28%) from the amount of dividends and the proceeds of any sale of shares for youa domestic shareholder if: (i) you fail to certify to the agentPlan Administrator that you are not subject to backup withholding, (ii) you fail to certify that the taxpayer identification number provided is correct or (iii) the Internal Revenue Service notifies us that you are subject to backup withholding. The withheld amount will be deducted from the amount of dividends and the remaining amount will be reinvested in accordance with the plan.Plan. The withheld amount also will be deducted from the proceeds of any sale of shares and the remaining amount will be sent to you. In the case of those foreign shareholders whose dividends are subject to United States income tax withholding, the amount of tax to be withheld (generally 30% unless a treaty rate reduction applies) will be deducted from the amount of dividends and the remaining amount of dividends will be reinvested. In the case of those foreign shareholders whose sale proceeds are subject to withholding, the amount of tax to be withheld will be deducted from the proceeds of the sale of shares. 11 EMPLOYEE PARTICIPATION 34.     35.Which employees are eligible to join the plan?Plan? All full-time employees of Vectren and such wholly ownedwholly-owned subsidiaries of Vectren as shall be designated from time to time by the Chief Executive Officer of Vectren consecutive are eligible to participate in the plan.Plan. 35.     36.What are the rights of employees under the plan?Plan? Employees have the same rights under the planPlan and are governed by the same terms and limitations that apply to all other participants except as shareholders of Vectren, except that eligiblefollows. Eligible employees (a) may enroll in the plan to purchase shares with voluntary cash payments even though they are not registered holders of any shares of Common Stock, and (b) may arrange to make such voluntary cash payments through regular payroll deductions. Also, employees who make this election are not required to make an initial $500 minimum investment and are not required to maintain a minimum of ten shares of Common Stock in their Plan 16 account to avoid having their participation in the Plan terminated by the Company. (Refer to Question 43.) Voluntary cash payments by an employee, including payroll deductions, may not exceed $50,000$100,000 in a calendar year. Voluntary cash payments by employees, including payroll deductions, will be applied by the agentPlan Administrator to the purchase of shares of Common Stock. 36.     37.How does an eligible employee join the plan?Plan? An eligible employee may enroll in the planPlan at any time to purchase shares of Common Stock with voluntary cash payments by completing a Payroll Deduction Authorization & Enrollment Card and returning it to the Payroll Department. Employees can obtain an authorization and enrollment cardAuthorization & Enrollment Card from the Payroll Department. If an employee elects to make voluntary cash payments directly to the agentPlan Administrator and does not authorize payroll deductions, the authorization and enrollment cardan Account Authorization Form must be marked accordinglycompleted and accompanied bymailed to the Plan Administrator along with a check or money order for at least the initial payment.$500 minimum investment plus a $10 enrollment fee. Employees who as record holders of Common Stock, are already participatingparticipate in the planPlan must complete a Payroll Deduction Authorization & Enrollment Card if they wish to make voluntary cash payments through payroll deductions. Any employee who is or becomes a registered holder of shares,commences participation in the Plan and does not wish to make voluntary cash payments through payroll deduction may obtain from the agentPlan Administrator and execute a shareholder enrollment authorization forman Account Authorization Form in order to provide for the reinvestment of cash dividends on those shares. 37.     38.What is the limit on payroll deductions? An eligible employee may authorize his or her employer to deduct a specified dollar amount from each pay period of each month. The minimum total monthly deduction is $25. Once authorized, payroll deductions will continue until changed or terminated by the employee. 38.     39.May employees change or terminate payroll deductions? Yes. An employee may change the amount deducted or terminate payroll deductions by giving written notice to the Payroll Department. Employees should allow at least 15 days’ processing time prior to the end of the pay period in which the deduction is made for any change in the amount of the deduction to become effective. Not more than two payroll deduction changes may be made in any calendar year. However, an employee may terminate his or her payroll deduction at any time by giving reasonable notice to the Payroll Department. Employees may terminate payroll deductions and continue to invest by making voluntary cash payments directly to the agent.Plan Administrator. 39. 40.What happens when an employee who participates in the planPlan leaves Vectren or one of its wholly-owned subsidiaries? If you cease to be employed by Vectren or one of its wholly-owned subsidiaries, the agentPlan Administrator will continue to either reinvest cash dividends or send cash dividends directly to you on the shares credited to your account, depending upon your investment option, until you notify the agentPlan Administrator by telephone or in writing to the contrary. ParticipationYou may continue to participate in the plan may continuePlan as long as therea minimum of ten shares are shares credited to your account or held by you in stock certificate form.Plan account. (Refer to Question 43.) 12 MISCELLANEOUS 40.     41.May the planPlan be changed or discontinued? We have the right to modify the plan,Plan, or to suspend or terminate the plan,Plan, at any time. You will receive notice of any such action. Any such modification, suspension or termination will not, of course, affect previously executed transactions. We also have the right to adopt, and from time to time to change, such administrative rules and 17 regulations (not inconsistent in substance with the basic provisions of the planPlan then in effect) as we deem desirable or appropriate for the administration of the plan.Plan. In addition, we have the right to offer to the plan newly issuedPlan new issue shares or direct the planPlan to purchase open market shares as we, from time to time, determine in our sole discretion. The agentPlan Administrator has the right to resign at any time upon reasonable written notice to us.Vectren. 41.     42.Who interprets the plan?Plan?         WeVectren will interpret and regulate the planPlan and any agreements whichthat establish or administer the plan,Plan, and our interpretation and regulation will be conclusive. 43.May Vectren terminate a participant’s participation in the Plan? We may, in our sole discretion and at any time, terminate participation in the Plan by any participant holding fewer than ten shares of Common Stock in a Plan account and who, at such time, is not an employee enrolled to purchase shares through automatic payroll deductions or a non-employee participant having funds regularly deducted from a savings or checking account. Before terminating the participation in the Plan of such a participant, we will provide 60-day advance written notice requesting the participant to increase the number of shares credited to the participant’s Plan account to at least ten shares. This 60-day period will encompass two investment dates so as to allow the participant two opportunities to purchase a sufficient number of shares to meet this minimum threshold. If, upon the expiration of this 60-day period, the participant’s Plan account holds fewer than ten shares, the participant will be treated as though the participant had terminated participation in the Plan as of such date, the Plan Administrator will transfer to book-entry registration in such participant’s name all whole shares in the participant’s Plan account, and will deliver to the participant a check for any optional cash payments not then invested and a check for any fractional shares based upon the then current fair market value of the Common Stock, less any service fee, brokerage commission and any other costs of sale. USE OF PROCEEDS In the case of shares purchased for the planPlan in the open market, we will not receive any of the proceeds of the offering. In the case of new issue shares, the proceeds received by us will be used for general corporate purposes. EXPERTS The consolidated financial statements and the related financial statement schedule, incorporated in this prospectus by reference from the Vectren Corporation’sCorporation Annual Report on Form 10-K for the year ended December 31, 20032010, and the effectiveness of Vectren Corporation’s internal control over financial reporting have been audited by Deloitte & Touche LLP, an independent registered public accounting firm, as stated in their report (which expresses an unqualified opinion and includes explanatory paragraphs relating to (1) the changes in the method of accounting for goodwill as described in Note 2-G, asset retirement obligations as described in Note 2-H, and derivatives and hedging activities as described in Note 15, and (2) the accounting for realized gains and losses on derivative instruments not held for trading purposes as described in Note 15),reports, which isare incorporated herein by reference,reference. Such financial statements and financial statement schedule have been so incorporated in reliance upon the reportreports of such firm given upon their authority as experts in accounting and auditing. LEGAL MATTERS The validity of the planPlan shares will be passed upon for us by Barnes & Thornburg LLP, 11 South Meridian Street, Indianapolis, Indiana 46204, our outside counsel. 1318 TABLE OF CONTENTS Page General Information 2 Where You Can Find More Information 2 The Plan 3     Introduction 3     Purpose 3     Administration 3     Participation 4     Costs 6     Purchases 6     Voluntary Cash Payments 7     Reports to Participants 8     Dividends 8     Certificates for Shares 8     Sale of Shares 8     Deposit of Stock Certificates 9     Stopping Dividend Reinvestment 9     Account Management 9     Other Information 10     Federal Income Tax Consequences 11     Employee Participation 12     Miscellaneous 13     Use of Proceeds 13 Experts 13 Legal Matters 13 VECTREN CORPORATION Automatic Dividend Reinvestment and Stock Purchase Plan PROSPECTUS THIS PAGE IS INTENTIONALLY LEFT BLANK Dated ___________, 2004 TABLE OF CONTENTS Page General Information 2 Risk Factors 2 Where You Can Find More Information 2 The Plan 5 Introduction 5 Purpose 5 Administration 5 Participation 7 Costs 8 Purchases 8 Initial Purchase and Voluntary Cash Payments 9 Reports to Participants 11 Dividends 11 Certificates for Shares 11 Sale of Shares 12 Deposit of Stock Certificates 12 Stopping Dividend Reinvestment 13 Account Management 13 Other Information 14 Federal Income Tax Consequences 15 Employee Participation 16 Miscellaneous 17 Use of Proceeds 18 Experts 18 Legal Matters 18 VECTREN CORPORATION Automatic Dividend Reinvestment and Stock Purchase Plan PROSPECTUS Dated November 10, 2011 II-1 PART II INFORMATION NOT REQUIRED IN PROSPECTUS Item 14. Other Expenses of Issuance and Distribution. Item 14. Other Expenses of Issuance and Distribution.           The following table sets forth the expenses to be incurred in connection with the issuance and distribution of the securities being registered. All amounts shown are estimates, except the registration fee. Registration fee   $ 2,430 Trustees’ and transfer agents’ fees   $ 0 Costs of printing   $ 6,000 New York Stock Exchange Filing Fee   $ 7,100 Fees and expenses of attorneys   $ 15,000 Fees and expenses of accountants   $ 15,000 Miscellaneous   $ 4,470                Total   $ 50,000 Registration fee $ 6,294.27 Trustees' and transfer agents' fees $ 0 Costs of printing $ 4,000.00 Fees and expenses of attorneys $ 8,000.00 Fees and expenses of accountants $ 3,000.00 Miscellaneous $ 3,000.00         Total $ 24,294.27 Item 15. Indemnification of Directors and Officers. Vectren Indemnification of Directors and Officers.Provisions           Vectren’sThe Vectren Articles and By-lawsthe Vectren bylaws provide that Vectren will indemnify any individual who is or was a director or officer of Vectren, or is or was serving at the request of Vectren as a director, officer, partner or trustee of another foreign or domestic corporation, partnership, joint venture, trust, employee benefit plan or other enterprise whether or not for profit, against liability and expenses, including attorneysattorneys’ fees, incurred by him or her in any action, suit, or proceeding, whether civil, criminal, administrative, or investigative, and whether formal or informal, in which he or she is made or threatened to be made a party by reason of being or having been in any such capacity, or arising out of his or her status as such, except (i) in the case of any action, suit, or proceeding terminated by judgment, order, or conviction, in relation to matters as to which he or she is adjudged to have breached or failed to perform the duties of his or her office and the breach or failure to perform constituted willful misconduct or recklessness; and (ii) in any other situation, in relation to matters as to which it is found by a majority of a committee composed of all directors not involved in the matter in controversy (whether or not a quorum) that the personhe or she breached or failed to perform the duties of his or her office and the breach or failure to perform constituted willful misconduct or recklessness. Vectren may pay for or reimburse reasonable expenses incurred by a director or officer in defending any action, suit, or proceeding in advance of the final disposition thereof upon receipt of (i) a written affirmation of the director’s or officer’s good faith belief that such director or officer has met the standard of conduct prescribed by Indiana law; and (ii) an undertaking of the director or officer to repay the amount paid by Vectren if it is ultimately determined that the directorhe or officershe is not entitled to indemnification by Vectren.           Vectren’sThe Vectren Articles and By-lawsthe Vectren bylaws provide that the indemnification rights described above are in addition to any other indemnification rights a person may have by law or by contract. Vectren expects thatlaw. The employment agreements with its executive officers will require Vectren to indemnify the executive officers in accordance with its indemnification policies for its senior executives, subject to applicable law.           In September 2011, the Board of Directors of Vectren approved a form of indemnification agreement (the “Indemnification Agreement”) to be entered into by Vectren with each of its directors and executive officers. The Indemnification Agreements generally require Vectren to indemnify and hold such persons harmless to the greatest extent permitted by law for liabilities arising out of such person’s service to Vectren as a director or executive officer, if such person acted in good faith and in a manner that the person reasonably believed to be in or not opposed to the best interests of Vectren and, with respect to criminal proceedings, if the person had no reasonable cause to believe that his or her conduct was unlawful. In addition, the Indemnification Agreement provides for Vectren to make advance payment of expenses to the indemnitee for attorney fees II-1 and/or court costs in connection with any proceeding relating to any fact or occurrence arising from or relating to events or occurrences specified in the Indemnification Agreement, provided such person certifies he or she believes in good faith that the standard of conduct justifying advancement has been met, and he or she provides an undertaking agreeing to repay such advancement if there is an adjudication it was unjustified. Indiana Business Corporation Law Provision           Section 23-1-37et seq.seq. of the IBCL provides for “mandatory indemnification,” unless limited by the articles, by a corporation against reasonable expenses incurred by a director who is wholly successful, on the merits or otherwise, in the defense of any proceeding to which the director was a party by reason of the director being or having been a director of the corporation. Section 23-1-37-10 of the IBCL states that a corporation may, in advance of the final disposition of a proceeding, reimburse reasonable expenses incurred by a director who is a party to a proceeding if the director furnishes the corporation with a written affirmation of the director’s good faith belief that the directorhe or she acted in good faith and reasonably believed thehis or her actions were in the best interest of the corporation (or if the actions are not in an official capacity, the actions were not opposed to the best interests of the corporation) if the proceeding is a civil proceeding. If the proceeding is criminal, the director must furnish a written affirmation that the directorhe or she had reasonable cause to believe he or she was acting lawfully or the director or officer had no reason to believe the action was unlawful. The director willmust undertake to repay the advance if it is ultimately determined that such directorhe or she did not meet the standard of conduct required by the IBCL and thatIBCL. In addition, those making the decision to reimburse the director must determine that the facts then known would not preclude indemnification under the IBCL.           The IBCL permits a corporation to grant indemnification rights in addition to those provided by statute, limited only by the fiduciary duties of the directors approving the indemnification and public policies of the State of Indiana. II-1           Vectren maintains directors’ and officers’ liability insurance with an annual aggregate limit of $35,000,000$115,000,000 for the current policy period, subject to a $500,000 deductible at the corporate level, for each wrongful act where corporate reimbursement is available to any director or officer. Vectren also maintains excess coverage with an aggregate annual limit of $50,000,000. When corporate reimbursement is not available as prescribed by applicable common law, statutory law or Vectren’s governing documents, the insurer will reimburse the directors and officers with no deductible with respect to losses sustained by them for specified wrongful acts while acting in their capacities, individually or collectively, as such directors or officers. Item 16. Exhibits.         The exhibits required by this item are listed on page E-1. Item 17. Undertakings. Item 16. Exhibits. Exhibit Number Description 5 Opinion of Barnes & Thornburg LLP 23.1 Consent of Deloitte & Touche LLP 23.2 Consent of Barnes & Thornburg LLP (included in Exhibit 5) 24 Power of Attorney Item 17. Undertakings.           (a) The undersigned registrant hereby undertakes:           (1) To file, during any period in which offers or sales are being made, a post-effective amendment to this Registration Statement:registration statement:         (i)               To include any prospectus required by section II-2           (i) To include any prospectus required by Section 10(a)(3) of the Securities Act of 1933;         (ii)                To reflect in the prospectus any facts or events arising after the effective date of this Registration Statement (or the most recent post-effective amendment hereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in this Registration Statement;           (ii) To reflect in the prospectus any facts or events arising after the effective date of the registration statement (or the most recent post-effective amendment thereof) which, individually or in the aggregate, represent a fundamental change in the information set forth in the registration statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered (if the total dollar value of the securities offered would not exceed that which was registered) and any deviation from the low or high end of the estimated maximum offering range may be reflected in the form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the changes in volume and price represent no more than a 20 percent change in the maximum aggregate offering price set forth in the “Calculation of Registration Fee” table in the effective registration statement;           (iii) To include any material information with respect to the plan of distribution not previously disclosed in the registration statement or any material change to such information in the registration statement; provided, however, that paragraphs (1)(i), (1)(ii) and (1)(iii) do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in reports filed with or furnished to the Commission by the registrant pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in the registration statement, or is contained in a form of prospectus filed pursuant to Rule 424(b) that is part of the registration statement.         (iii)                To include any material information with respect to the plan of distribution not previously disclosed in this Registration Statement or any material change to such information in this Registration Statement; provided, however, that the undertakings set forth in paragraphs (i) and (ii) above do not apply if the information required to be included in a post-effective amendment by those paragraphs is contained in periodic reports filed with the Securities and Exchange Commission by the registrant pursuant to section 13 or section 15(d) of the Securities Exchange Act of 1934 that are incorporated by reference in this Registration Statement.        (2) That, for the purpose of determining any liability under the Securities Act of 1933, each such post-effective amendment shallwill be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.        (3) To remove from registration by means of a post-effective amendment any of the securities being registered which remain unsold at the termination of the offering.        (4) That, for the purpose of determining liability under the Securities Act of 1933 to any purchaser:           (i) Each prospectus filed by the registrant pursuant to Rule 424(b)(3) shall be deemed to be part of the registration statement as of the date the filed prospectus was deemed part of and included in the registration statement; and           (ii) Each prospectus required to be filed pursuant to Rule 424(b)(2), (b)(5), or (b)(7) as part of a registration statement in reliance on Rule 430B relating to an offering made pursuant to Rule 415(a)(1)(i), (vii), or (x) for the purpose of providing the information required by Section 10(a) of the Securities Act of 1933 shall be deemed to be part of and included in the registration statement as of the earlier of the date such form of prospectus is first used after effectiveness or the date of the first contract of sale of securities in the offering described in the prospectus. As provided in Rule 430B, for liability purposes of the issuer and any person that is at that date an underwriter, such date shall be deemed to be a new effective date of the registration statement relating to the securities in the registration statement to which that prospectus relates, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof. Provided, however, that no statement made in a registration statement or prospectus that is part of the registration statement or made in a document incorporated or deemed incorporated by reference into the registration statement or prospectus that is part of the registration statement will, as to a purchaser with a time of contract of sale prior to such effective date, supersede or modify any statement that was made in the registration statement or prospectus that was part of the registration statement or made in any such document immediately prior to such effective date.         (5) That, for the purpose of determining liability of the registrant under the Securities Act of 1933 to any purchaser in the initial distribution of the securities: II-3         The undersigned registrant hereby undertakes that in a primary offering of securities of the undersigned registrant pursuant to this registration statement, regardless of the underwriting method used to sell the securities to the purchaser, if the securities are offered or sold to such purchaser by means of any of the following communications, the undersigned registrant will be a seller to the purchaser and will be considered to offer or sell such securities to such purchaser:           (i) Any preliminary prospectus or prospectus of the undersigned registrant relating to the offering required to be filed pursuant to Rule 424;           (ii) Any free writing prospectus relating to the offering prepared by or on behalf of the undersigned registrant or used or referred to by the undersigned registrant;           (iii) The portion of any other free writing prospectus relating to the offering containing material information about the undersigned registrant or its securities provided by or on behalf of the undersigned registrant; and           (iv) Any other communication that is an offer in the offering made by the undersigned registrant to the purchaser.         (6) That, for purposes of determining any liability under the Securities Act of 1933, each filing of the registrant’s annual report pursuant to sectionSection 13(a) or sectionSection 15(d) of the Securities Exchange Act of 1934 (and, where applicable, each filing of an employee benefit plan’s annual report pursuant to Section 15(d) of the Securities Exchange Act of 1934) that is incorporated by reference in the registration statement shall be deemed to be a new registration statement relating to the securities offered therein, and the offering of such securities at that time shall be deemed to be the initial bona fide offering thereof.           (c)        Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of the registrant pursuant to the foregoing provisions, or otherwise, the registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act of 1933 and is, therefore, unenforceable. In the event that a claim for indemnification against such liabilities (other than the payment by the registrant of expenses incurred or paid by a director, officer or controlling person of the registrant in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person in connection with the securities being registered, the registrant will, unless in the opinion of its counsel the matter has been settled by controlling precedent, submit to a court of appropriate jurisdiction the question whether such indemnification by it is against public policy as expressed in the Securities Act of 1933 and will be governed by the final adjudication of such issue. II-2II-4 SIGNATURES           Pursuant to the requirements of the Securities Act of 1933, the Registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form S-3 and has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Evansville, State of Indiana, on October 28, 2004.November 10, 2011. VECTREN CORPORATION By: /s/ Ronald E. Christian Ronald E. Christian, Executive Vice President, Chief Legal and External Affairs VECTREN CORPORATION BY: /s/ Ronald E. Christian ————————————————————— Ronald E. Christian, Executive Vice President, Chief Administrative Officer General Counsel and Corporate Secretary           Pursuant to the requirements of the Securities Act of 1933, this registration statement has been signed by the following persons in the capacities and on the dates indicated. Signature Title Signature Title Date (1) Principal Executive Officer /s/ Niel C. Ellerbrook —————————— Niel C. Ellerbrook Chairman, President and Chief Executive Officer October 28, 2004 (2) Principal Financial Officer /s/ Jerome A. Benkert, Jr. —————————— Jerome A. Benkert, Jr. Executive Vice President and Chief Financial Officer October 28, 2004 (3) Principal Accounting (1) Principal Executive Officer /s/ M. Susan Hardwick —————————— M. Susan Hardwick Vice President and Controller October 28, 2004 II-3 (4) A Majority of the Board of Directors /s/ John M. Dunn ——————————————— John M. Dunn Director October 28, 2004 /s/ Carl L. Chapman                        Chairman, President and November 10, 2011 Carl L. Chapman Chief Executive Officer (2) Principal Financial Officer /s/ Jerome A. Benkert                    Executive Vice President November 10, 2011 Jerome A. Benkert and Chief Financial Officer (3) Principal Accounting Officer /s/ M. Susan Hardwick                    Vice President, Controller November 10, 2011 M. Susan Hardwick and Assistant Treasurer /s/ Niel C. Ellerbrook ——————————————— Niel C. Ellerbrook Director October 28, 2004 (4) A Majority of the Board of Directors Name Title Date /s/ John D. Engelbrecht ——————————————— John D. Engelbrecht Director October 28, 2004 ——————————————— Anton H. George Director October __, 2004 /s/ Robert L. Koch II ——————————————— Robert L. Koch II Director October 28, 2004 /s/ Carl L. Chapman                                       Director ) /s/ William G. Mays ——————————————— William G. Mays Director October 28, 2004 Carl L. Chapman ) /s/ J. Timothy McGinley ——————————————— J. Timothy McGinley Director October 28, 2004 ) /s/ Richard P. Rechter ——————————————— Richard P. Rechter Director October 28, 2004 /s/ James H. DeGraffenreidt, Jr.                    Director ) /s/ Ronald G. Reherman ——————————————— Ronald G. Reherman Director October 28, 2004 James H. DeGraffenreidt, Jr. ) /s/ R. Daniel Sadlier ——————————————— R. Daniel Sadlier Director October 28, 2004 ) /s/ Richard W. Shymanski ——————————————— Richard W. Shymanski Director October 28, 2004 /s/ Niel C. Ellerbrook                                      Director ) /s/ Jean L. Wojtowicz ——————————————— Jean L. Wojtowicz Director October 28, 2004 Niel C. Ellerbrook ) ) /s/ John D. Engelbrecht                                 Director ) John D. Engelbrecht ) ) /s/ Anton H. George                                      Director ) Anton H. George ) ) /s/ Martin C. Jischke                                      Director ) Martin C. Jischke ) ) /s/ Robert G. Jones                                        Director ) November 10, 2011 Robert G. Jones ) ) /s/ William G. Mays                                       Director ) William G. Mays ) ) /s/ J. Timothy McGinley                               Director ) J. Timothy McGinley ) ) /s/ R. Daniel Sadlier                                        Director ) R. Daniel Sadlier ) ) /s/ Michael L. Smith                                        Director ) Michael L. Smith ) ) /s/ Jean L. Wojtowicz                                      Director ) Jean L. Wojtowicz ) II-6 II-4 EXHIBIT INDEX Exhibit Number Description 5 Opinion of Barnes & Thornburg LLP 23.1 Consent of Deloitte & Touche LLP 23.2 Consent of Barnes & Thornburg LLP (included in Exhibit 5) 24 Power of Attorney Exhibit Number Description Location 4.1 Amended and Restated Articles of Vectren Corporation. Incorporated by reference to Exhibit 4.1 to Vectren Corporation's Current Report on Form 8-K filed on April 14, 2000. 4.2 Code of By-Laws of Vectren Corporation as amended and restated through October 29, 2003. Incorporated by reference to Exhibit 3.1 to Vectren Corporation's Quarterly Report on Form 10-Q for the quarter ended September 30, 2003, and filed on November 13, 2003. 4.3 Rights Agreement, dated as of October 21, 1999, between Vectren Corporation and EquiServe Trust Company, N.A., as Rights Agent. Incorporated by reference to Exhibit 4 to Vectren Corporation's Registration Statement on Form S-4 (Registration No. 333-90763) filed on November 12, 1999. 5 Opinion of Barnes & Thornburg LLP Attached 23.1 Consent of Deloitte & Touche LLP Attached 23.2 Consent of Barnes & Thornburg LLP (Included in Exhibit 5) 24 Power of Attorney Attached E-1