-----BEGIN PRIVACY-ENHANCED MESSAGE----- Proc-Type: 2001,MIC-CLEAR Originator-Name: webmaster@www.sec.gov Originator-Key-Asymmetric: MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB MIC-Info: RSA-MD5,RSA, BeiDS4HHFNfaItRm1DtRC8x0CMKfdIreQB3/CgFzd0a2c+6qn9UO2xZZ4cuVB3cJ Ia7d1horelKgjp+voyAPIQ== 0000807249-07-000157.txt : 20070529 0000807249-07-000157.hdr.sgml : 20070528 20070529163116 ACCESSION NUMBER: 0000807249-07-000157 CONFORMED SUBMISSION TYPE: SC 13D PUBLIC DOCUMENT COUNT: 1 FILED AS OF DATE: 20070529 DATE AS OF CHANGE: 20070529 SUBJECT COMPANY: COMPANY DATA: COMPANY CONFORMED NAME: AQUILA INC CENTRAL INDEX KEY: 0000066960 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC SERVICES [4911] IRS NUMBER: 440541877 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: SC 13D SEC ACT: 1934 Act SEC FILE NUMBER: 005-40730 FILM NUMBER: 07884024 BUSINESS ADDRESS: STREET 1: 20 WEST NINTH STREET STREET 2: -- CITY: KANSAS CITY STATE: MO ZIP: 64105-1711 BUSINESS PHONE: 8164216600 MAIL ADDRESS: STREET 1: 20 WEST NINTH STREET CITY: KANSAS CITY STATE: MO ZIP: 64105-1711 FORMER COMPANY: FORMER CONFORMED NAME: UTILICORP UNITED INC DATE OF NAME CHANGE: 19920703 FORMER COMPANY: FORMER CONFORMED NAME: MISSOURI PUBLIC SERVICE CO DATE OF NAME CHANGE: 19850516 FILED BY: COMPANY DATA: COMPANY CONFORMED NAME: GAMCO INVESTORS, INC. ET AL CENTRAL INDEX KEY: 0000807249 STANDARD INDUSTRIAL CLASSIFICATION: UNKNOWN SIC - 0000 [0000] IRS NUMBER: 133056041 STATE OF INCORPORATION: NY FISCAL YEAR END: 1031 FILING VALUES: FORM TYPE: SC 13D BUSINESS ADDRESS: STREET 1: ONE CORPORATE CENTER CITY: RYE STATE: NY ZIP: 10580-1434 BUSINESS PHONE: 9149215128 MAIL ADDRESS: STREET 1: ONE CORPORATE CENTER CITY: RYE STATE: NY ZIP: 10580 FORMER COMPANY: FORMER CONFORMED NAME: GABELLI ASSET MANAGEMENT INC ET AL DATE OF NAME CHANGE: 20020828 FORMER COMPANY: FORMER CONFORMED NAME: GABELLI FUNDS INC ET AL DATE OF NAME CHANGE: 19940714 SC 13D 1 ila00.txt SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13D Under the Securities Exchange Act of 1934 Aquila, Inc. (Name of Issuer) Common Stock, Par Value $1.00 (Title of Class of Securities) 03840P102 (CUSIP Number) James E. McKee GAMCO Investors, Inc. One Corporate Center Rye, New York 10580-1435 (914) 921-5294 (Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications) May 17, 2007 (Date of Event which Requires Filing of this Statement) If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of Section 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. CUSIP No. 03840P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Gabelli Funds, LLC I.D. NO. 13-4044523 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) 00-Funds of investment advisory clients 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER 9,520,000 (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER 9,520,000 (Item 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9,520,000 (ITEM 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.54% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IA CUSIP No. 03840P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) GAMCO Asset Management Inc. I.D. NO. 13-4044521 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) 00-Funds of investment advisory clients 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER 9,648,400 (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER 9,801,900 (Item 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 9,801,900 (Item 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 2.62% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IA, CO CUSIP No. 03840P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Gabelli Securities, Inc. I.D. NO. 13-3379374 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) 00-Client Funds 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER 267,100 (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER 267,100 (Item 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 267,100 (ITEM 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.07% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) HC, CO, IA CUSIP No. 03840P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) MJG Associates, Inc. I.D. NO. 06-1304269 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) 00-Client Funds 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Connecticut NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER 120,000 (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER 120,000 (Item 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 120,000 (ITEM 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.03% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) CO CUSIP No. 08340P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Gabelli Advisers, Inc. I.D. NO. 13-4008049 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 SOURCE OF FUNDS (SEE INSTRUCTIONS) 00 - Funds of investment advisory clients 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION Delaware NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER 25,000 (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER 25,000 (Item 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON 25,000 (ITEM 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.01% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IA, CO CUSIP No. 03840P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) GGCP, Inc. I.D. NO. 13-3056041 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 Source of funds (SEE INSTRUCTIONS) None 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER NONE (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER NONE (ITEM 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON NONE (ITEM 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) X 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.00% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) HC, CO CUSIP No. 03840P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) GAMCO Investors, Inc. I.D. NO. 13-4007862 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 Source of funds (SEE INSTRUCTIONS) NONE 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION New York NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER NONE (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER NONE (ITEM 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON NONE (ITEM 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) X 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.00% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) HC, CO CUSIP No. 03840P102 1 NAMES OF REPORTING PERSONS I.R.S. IDENTIFICATION NOS. OF ABOVE PERSONS (ENTITIES ONLY) Mario J. Gabelli 2 CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS) (a) (b) 3 SEC USE ONLY 4 Source of funds (SEE INSTRUCTIONS) NONE 5 CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2 (d) OR 2 (e) 6 CITIZENSHIP OR PLACE OF ORGANIZATION USA NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH 7 SOLE VOTING POWER NONE (Item 5) 8 SHARED VOTING POWER NONE 9 SOLE DISPOSITIVE POWER NONE (ITEM 5) 10 SHARED DISPOSITIVE POWER NONE 11 AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON NONE (ITEM 5) 12 CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (11) EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS) X 13 PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (11) 0.00% 14 TYPE OF REPORTING PERSON (SEE INSTRUCTIONS) IN Item 1. Security and Issuer The class of equity securities to which this statement on Schedule 13D relates is the Common Stock of Aquila, Inc. (the "Issuer"), a Delaware corporation with principal offices located at 20 West Ninth Street, Kansas City, Missouri 64105. Item 2. Identity and Background This statement is being filed by Mario J. Gabelli ("Mario Gabelli") and various entities which he directly or indirectly controls or for which he acts as chief investment officer. These entities, except for LICT Corporation ("LICT"), engage in various aspects of the securities business, primarily as investment adviser to various institutional and individual clients, including registered investment companies and pension plans, and as general partner of various private investment partnerships. Certain of these entities may also make investments for their own accounts. The foregoing persons in the aggregate often own beneficially more than 5% of a class of a particular issuer. Although several of the foregoing persons are treated as institutional investors for purposes of reporting their beneficial ownership on the short-form Schedule 13G, the holdings of those who do not qualify as institutional investors may exceed the 1% threshold presented for filing on Schedule 13G or implementation of their investment philosophy may from time to time require action which could be viewed as not completely passive. In order to avoid any question as to whether their beneficial ownership is being reported on the proper form and in order to provide greater investment flexibility and administrative uniformity, these persons have decided to file their beneficial ownership reports on the more detailed Schedule 13D form rather than on the short-form Schedule 13G and thereby to provide more expansive disclosure than may be necessary. (a), (b) and (c) - This statement is being filed by one or more of the following persons: GGCP, Inc. formerly known as Gabelli Group Capital Partners, Inc. ("GGCP"), GAMCO Investors, Inc. formerly known as Gabelli Asset Management Inc. ("GBL"), Gabelli Funds, LLC ("Gabelli Funds"), GAMCO Asset Management Inc. formerly known as GAMCO Investors, Inc. ("GAMCO"), Gabelli Advisers, Inc. ("Gabelli Advisers"), Gabelli Securities, Inc. ("GSI"), Gabelli & Company, Inc. ("Gabelli & Company"), MJG Associates, Inc. ("MJG Associates"), Gabelli Foundation, Inc. ("Foundation"), Mario Gabelli, and LICT. Those of the foregoing persons signing this Schedule 13D are hereafter referred to as the "Reporting Persons". GGCP makes investments for its own account and is the parent company of GBL. GBL, a public company listed on the New York Stock Exchange, is the parent company for a variety of companies engaged in the securities business, including those named below. GAMCO, a wholly-owned subsidiary of GBL, is an investment adviser registered under the Investment Advisers Act of 1940, as amended ("Advisers Act"). GAMCO is an investment manager providing discretionary managed account services for employee benefit plans, private investors, endowments, foundations and others. GSI, a majority-owned subsidiary of GBL, is an investment adviser registered under the Advisers Act and serves as a general partner or investment manager to limited partnerships and offshore investment companies. As a part of its business, GSI may purchase or sell securities for its own account. It is the immediate parent of Gabelli & Company. GSI is the Investment Manager of Gabelli Associates Fund, Gabelli Associates Fund II, Gabelli Associates Limited, ALCE Partners, L.P., and Gabelli Multimedia Partners, L.P. GSI and Marc Gabelli own 45% and 55%, respectively, of Gabelli Securities International Limited ("GSIL"). GSIL provides investment advisory services to offshore funds and accounts. GSIL is an investment advisor of Gabelli International Gold Fund Limited, Gabelli European Partners, Ltd., and Gabelli Global Partners, Ltd. Gabelli & Company, a wholly-owned subsidiary of GSI, is a broker- dealer registered under the Securities Exchange Act of 1934, as amended ("1934 Act"), which as a part of its business regularly purchases and sells securities for its own account. Gabelli Funds, a wholly owned subsidiary of GBL, is a limited liability company. Gabelli Funds is an investment adviser registered under the Advisers Act which presently provides discretionary managed account services for The Gabelli Equity Trust Inc., The Gabelli Asset Fund, The Gabelli Growth Fund, The Gabelli Convertible and Income Securities Fund Inc., The Gabelli Value Fund Inc., The Gabelli Small Cap Growth Fund, The Gabelli Equity Income Fund, The Gabelli ABC Fund, The GAMCO Global Telecommunications Fund, GAMCO Gold Fund, Inc., The Gabelli Global Multimedia Trust Inc., The GAMCO Global Convertible Securities Fund, Gabelli Capital Asset Fund, GAMCO International Growth Fund, Inc., The GAMCO Global Growth Fund, The Gabelli Utility Trust, The GAMCO Global Opportunity Fund, The Gabelli Utilities Fund, The Gabelli Blue Chip Value Fund, The GAMCO Mathers Fund, The Gabelli Woodland Small Cap Value Fund, The Comstock Capital Value Fund, The Comstock Strategy Fund, The Gabelli Dividend and Income Trust, The Gabelli Global Utility & Income Trust, The Gabelli Global Gold, Natural Resources, & Income Trust (collectively, the "Funds"), which are registered investment companies. Gabelli Advisers, a subsidiary of GBL, is an investment adviser which provides discretionary advisory services to The Gabelli Westwood Mighty Mitessm Fund. MJG Associates provides advisory services to private investment partnerships and offshore funds. Mario Gabelli is the sole shareholder, director and employee of MJG Associates. MJG Associates is the Investment Manager of Gabelli International Limited, Gabelli International II Limited, Gabelli Performance Partnership, and Gabelli Fund, LDC. The Foundation is a private foundation. Mario Gabelli is the President, a Trustee and the Investment Manager of the Foundation. LICT is a holding company with operating subsidiaries engaged primarily in the rural telephone industry. LICT actively pursues new business ventures and acquisitions. LICT makes investments in marketable securities to preserve capital and maintain liquidity for financing their business activities and acquisitions and are not engaged in the business of investing, reinvesting, or trading in securities. Mario J. Gabelli is a director, and substantial shareholder of LICT. Mario Gabelli is the majority stockholder and Chief Executive Officer of GGCP and Chairman and Chief Executive Officer of GBL. GGCP is the majority shareholder of GBL. GBL, in turn, is the sole stockholder of GAMCO. GBL is also the majority stockholder of GSI and the largest shareholder of Gabelli Advisers. Gabelli & Company is a wholly-owned subsidiary of GSI. The Reporting Persons do not admit that they constitute a group. GGCP, GBL, GAMCO, and Gabelli & Company are New York corporations and GSI and Gabelli Advisers are Delaware corporations, each having its principal business office at One Corporate Center, Rye, New York 10580. Gabelli Funds is a New York limited liability company having its principal business office at One Corporate Center, Rye, New York 10580. MJG Associates is a Connecticut corporation having its principal business office at 140 Greenwich Avenue, Greenwich, CT 06830. The Foundation is a Nevada corporation having its principal offices at 165 West Liberty Street, Reno, Nevada 89501. LICT is a Delaware corporation having its principal place of business at 401 Theodore Fremd Avenue, Rye, New York 10580. For information required by instruction C to Schedule 13D with respect to the executive officers and directors of the foregoing entities and other related persons (collectively, "Covered Persons"), reference is made to Schedule I annexed hereto and incorporated herein by reference. (f) - Reference is made to Schedule I hereto. Item 3. Source and Amount of Funds or Other Consideration The Reporting Persons used an aggregate of approximately $80,665,225 to purchase the Securities reported as beneficially owned in Item 5. GAMCO and Gabelli Funds used approximately $40,029,284 and $39,033,861, respectively, of funds that were provided through the accounts of certain of their investment advisory clients (and, in the case of some of such accounts at GAMCO, may be through borrowings from client margin accounts) in order to purchase the Securities for such clients. GSI used approximately $1,122,390 of client funds to purchase the Securities reported by it. MJG Associates used approximately $340,244 of client funds to purchase the Securities reported by it. Gabelli Advisers used approximately $139,446 of client funds to purchase the Securities reported by it. Item 4. Purpose of Transaction Each of the Reporting Persons has purchased and holds the Securities reported by it for investment for one or more accounts over which it has shared, sole, or both investment and/or voting power, for its own account, or both. The Reporting Persons, with the exception of Interactive, are engaged in the business of securities analysis and investment and pursue an investment philosophy of identifying undervalued situations. In pursuing this investment philosophy, the Reporting Persons analyze the operations, capital structure and markets of companies in which they invest, including the Issuer, on a continuous basis through analysis of documentation and discussions with knowledgeable industry and market observers and with representatives of such companies (often at the invitation of management). The Reporting Persons do not believe they possess material inside information concerning the Issuer. As a result of these analytical activities one or more of the Reporting Persons may issue analysts reports, participate in interviews or hold discussions with third parties or with management in which the Reporting Person may suggest or take a position with respect to potential changes in the operations, management or capital structure of such companies as a means of enhancing shareholder values. Such suggestions or positions may relate to one or more of the transactions specified in clauses (a) through (j) of Item 4 of Schedule 13D including, without limitation, such matters as disposing of one or more businesses, selling the company or acquiring another company or business, changing operating or marketing strategies, adopting or not adopting, certain types of anti-takeover measures and restructuring the company's capitalization or dividend policy. Each of the Reporting Persons intends to adhere to the foregoing investment philosophy with respect to the Issuer. However, none of the Reporting Persons intends to seek control of the Issuer or participate in the management of the Issuer, and any Reporting Person that is registered as an investment company under the 1940 Act will participate in such a transaction only following receipt of an exemption from the SEC under Rule 17d-1 under the 1940 Act, if required, and in accordance with other applicable law. In pursuing this investment philosophy, each Reporting Person will continuously assess the Issuer's business, financial condition, results of operations and prospects, general economic conditions, the securities markets in general and those for the Issuer's securities in particular, other developments and other investment opportunities, as well as the investment objectives and diversification requirements of its shareholders or clients and its fiduciary duties to such shareholders or clients. Depending on such assessments, one or more of the Reporting Persons may acquire additional Securities or may determine to sell or otherwise dispose of all or some of its holdings of Securities. Although the Reporting Persons share the same basic investment philosophy and although most portfolio decisions are made by or under the supervision of Mario Gabelli, the investment objectives and diversification requirements of various clients differ from those of other clients so that one or more Reporting Persons may be acquiring Securities while others are disposing of Securities. With respect to voting of the Securities, the Reporting Persons have adopted general voting policies relating to voting on specified issues affecting corporate governance and shareholder values. Under these policies, the Reporting Persons generally vote all securities over which they have voting power in favor of cumulative voting, financially reasonable golden parachutes, one share one vote, management cash incentives and pre-emptive rights and against greenmail, poison pills, supermajority voting, blank check preferred stock and super-dilutive stock options. Exceptions may be made when management otherwise demonstrates superior sensitivity to the needs of shareholders. In the event that the aggregate voting position of all joint filers shall exceed 25% of the total voting position of the issuer then the proxy voting committees of each of the Funds shall vote their Fund's shares independently. Each of the Covered Persons who is not a Reporting Person has purchased the Securities reported herein as beneficially owned by him for investment for his own account or that of one or more members of his immediate family. Each such person may acquire additional Securities or dispose of some or all of the Securities reported herein with respect to him. Other than as described above, none of the Reporting Persons and none of the Covered Persons who is not a Reporting Person has any present plans or proposals which relate to or would result in any transaction, change or event specified in clauses (a) through (j) of Item 4 of Schedule 13D. Item 5. Interest In Securities Of The Issuer (a) The aggregate number of Securities to which this Schedule 13D relates is 19,734,000 shares, representing 5.27% of the 374,683,578 shares outstanding as reported in the Issuer's most recent Form 10-Q for the quarter ended March 31, 2007. The Reporting Persons beneficially own those Securities as follows: Name Shares of Common Stock % of Class of Common Gabelli Funds 9,520,000 2.54% GAMCO 9,801,900 2.62% GSI 267,100 0.07% MJG Associates 120,000 0.03% Gabelli Advisers 25,000 0.01% Mario Gabelli is deemed to have beneficial ownership of the Securities owned beneficially by each of the foregoing persons. GSI is deemed to have beneficial ownership of the Securities owned beneficially by Gabelli & Company. GBL and GGCP are deemed to have beneficial ownership of the Securities owned beneficially by each of the foregoing persons other than Mario Gabelli and the Foundation. (b) Each of the Reporting Persons and Covered Persons has the sole power to vote or direct the vote and sole power to dispose or to direct the disposition of the Securities reported for it, either for its own benefit or for the benefit of its investment clients or its partners, as the case may be, except that (i) GAMCO does not have the authority to vote 153,500 of the reported shares, (ii) Gabelli Funds has sole dispositive and voting power with respect to the shares of the Issuer held by the Funds so long as the aggregate voting interest of all joint filers does not exceed 25% of their total voting interest in the Issuer and, in that event, the Proxy Voting Committee of each Fund shall respectively vote that Fund's shares, (iii) at any time, the Proxy Voting Committee of each such Fund may take and exercise in its sole discretion the entire voting power with respect to the shares held by such fund under special circumstances such as regulatory considerations, and (iv) the power of Mario Gabelli, GBL, and GGCP is indirect with respect to Securities beneficially owned directly by other Reporting Persons. (c) Information with respect to all transactions in the Securities which were effected during the past sixty days or since the most recent filing on Schedule 13D, whichever is less, by each of the Reporting Persons and Covered Persons is set forth on Schedule II annexed hereto and incorporated herein by reference. (d) The investment advisory clients of, or partnerships managed by, GAMCO, Gabelli Funds, Gabelli Advisers and MJG Associates have the sole right to receive and, subject to the notice, withdrawal and/or termination provisions of such advisory contracts and partnership arrangements, the sole power to direct the receipt of dividends from, and the proceeds of sale of, any of the Securities beneficially owned by such Reporting Persons on behalf of such clients or partnerships. Except as noted, no such client or partnership has an interest by virtue of such relationship that relates to more than 5% of the Securities. (e) Not applicable. Item 6. Contracts, Arrangements, Understandings or Relationships with Respect to Securities of the Issuer The powers of disposition and voting of Gabelli Funds, Gabelli Advisers, GAMCO, GSI and MJG Associates with respect to Securities owned beneficially by them on behalf of their investment advisory clients, and of MJG Associates and GSI with respect to Securities owned beneficially by them on behalf of the partnerships which they directly or indirectly manage, are held pursuant to written agreements with such clients, partnerships and funds. Item 7. Material to be Filed as an Exhibit The following Exhibit A is attached hereto. The following Exhibit B is incorporated by reference to Exhibit C in the Amendment No. 8 to Schedule 13D of the Reporting Persons with respect to Edgewater Technologies, Inc. Exhibit A: Joint Filing Agreement Exhibit B: Powers of Attorney to Douglas R. Jamieson and James E. McKee from Robert E. Dolan Powers of Attorney to Douglas R. Jamieson and James E. McKee from Mario J. Gabelli. Signature After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct. Dated: May 29, 2007 MARIO J. GABELLI GGCP, INC. MJG ASSOCIATES, INC. By:/s/ James E. McKee James E. McKee Attorney-in-Fact GAMCO INVESTORS, INC. GABELLI FUNDS, LLC GABELLI SECURITIES, INC. GABELLI ADVISERS, INC. By:/s/ James E. McKee James E. McKee Secretary or Assistant Secretary GAMCO ASSET MANAGEMENT INC. By:/s/ Douglas R. Jamieson Douglas R. Jamieson President and Chief Operating Officer SCHEDULE I Information with Respect to Executive Officers and Directors of the Undersigned Schedule I to Schedule 13D is amended, in pertinent part, as follows: The following sets forth as to each of the executive officers and directors of the undersigned: his name; his business address; his present principal occupation or employment and the name, principal business and address of any corporation or other organization in which such employment is conducted. Unless otherwise specified, the principal employer of each such individual is GAMCO Asset Management, Inc., Gabelli Funds, LLC, Gabelli & Company, Inc., or GAMCO Investors, Inc., the business address of each of which is One Corporate Center, Rye, New York 10580, and each such individual identified below is a citizen of the United States. To the knowledge of the undersigned, during the last five years, no such person has been convicted in a criminal proceeding (excluding traffic violations or similar misdemeanors), and no such person was a party to a civil proceeding of a judicial or administrative body of competent jurisdiction as a result of which he was or is subject to a judgment, decree or final order enjoining future violations of, or prohibiting or mandating activities subject to, federal or state securities law or finding any violation with respect to such laws except as reported in Item 2(d) of this Schedule 13D. GGCP, Inc. Directors: Vincent J. Amabile Mario J. Gabelli Business Consultant Chief Executive Officer of GGCP, Inc., and GAMCO Investors, Inc.; Director/Trustee of all registered investment companies advised by Gabelli Funds, LLC; Chief Executive Officer of LICT Corporation. Marc J. Gabelli Chairman of LGL Corporation Matthew R. Gabelli Vice President - Trading Gabelli & Company, Inc. One Corporate Center Rye, New York 10580 Charles C. Baum Douglas R. Jamieson Secretary & Treasurer United Holdings Co., Inc. 2545 Wilkens Avenue Baltimore, MD 21223 See below Joseph R. Rindler, Jr. Business Consultant/former Chairman of GAMCO Asset Management Inc. Fredric V. Salerno Chairman; Former Vice Chairman and Chief Financial Officer Verizon Communications Officers: Mario J. Gabelli Chief Executive Officer and Chief Investment Officer Michael G. Chieco Chief Financial Officer GAMCO Investors, Inc. Directors: Edwin L. Artzt Richard L. Bready Former Chairman and Chief Executive Officer Procter & Gamble Company 900 Adams Crossing Cincinnati, OH 45202 Chairman and Chief Executive Officer Nortek, Inc. 50 Kennedy Plaza Providence, RI 02903 Mario J. Gabelli John D. Gabelli See above Senior Vice President John C. Ferrara See below Eugene R. McGrath Former Chairman and Chief Executive Officer Consolidated Edison, Inc. Karl Otto Pohl (1) Robert S. Prather Vincent S. Tese Sal. Oppenheim jr. & Cie. Bockenheimer Landstrasse 20 D-6000 FRANKFURT AM MAIN Germany President & Chief Operating Officer Gray Television, Inc. 4370 Peachtree Road, NE Atlanta, GA 30319 Lawyer, Investment Adviser and Cable Television Executive c/o Bear Stearns & Company, Inc. 245 Park Avenue, 19th Floor New York, NY 10167 Officers: Mario J. Gabelli Chairman and Chief Executive Officer Douglas R. Jamieson Henry G. Van der Eb John C. Ferrara President and Chief Operating Officer Senior Vice President Interim Chief Financial Officer James E. McKee Vice President, General Counsel and Secretary GAMCO Asset Management Inc. Directors: Douglas R. Jamieson Regina M. Pitaro F. William Scholz, II William S. Selby Officers: Mario J. Gabelli Chief Investment Officer - Value Portfolios Douglas R. Jamieson Chistopher J. Michailoff President and Chief Operating Officer General Counsel and Secretary Gabelli Funds, LLC Officers: Mario J. Gabelli Chief Investment Officer - Value Portfolios Bruce N. Alpert Executive Vice President and Chief Operating Officer James E. McKee Secretary Gabelli Advisers, Inc. Directors: Bruce N. Alpert Douglas R. Jamieson See above See above Officers: Bruce N. Alpert Chief Operating Officer James E. McKee Secretary Gabelli Securities, Inc. Directors: Robert W. Blake President of W. R. Blake & Sons, Inc. 196-20 Northern Boulevard Flushing, NY 11358 Douglas G. DeVivo General Partner of ALCE Partners, L.P. One First Street, Suite 16 Los Altos, CA 94022 Douglas R. Jamieson F. William Scholz, II President and Chief Operating Officer See above Officers: Douglas R. Jamieson Christopher J. Michailoff Kieran Caterina See above Secretary Chief Financial Officer Gabelli & Company, Inc. Directors: James G. Webster, III Chairman & Interim President Irene Smolicz Senior Trader Gabelli & Company, Inc. Officers: James G. Webster, III Chairman & Interim President Bruce N. Alpert Vice President - Mutual Funds James E. McKee Secretary LICT Corporation 401 Theodore Fremd Avenue Rye, NY 10580 Directors: Mario J. Gabelli See above - GGCP, Inc. Glenn Angelillo P.O. Box 128 New Canaan, CT 06840 Alfred W. Fiore The Ross Companies 1270 Avenue of the Americas New York, NY 10020-1703 Salvatore Muoio Principal S. Muoio & Co., LLC Suite 406 509 Madison Ave. New York, NY 10022 Gary L. Sugarman Chief Executive Officer Richfield Associates 400 Andrews Street Rochester, NY 14604 Officers: Mario J. Gabelli Chairman Robert E. Dolan Interim President and Chief Executive Officer, Chief Financial Officer Thomas J. Hearity General Counsel (1) Citizen of Germany SCHEDULE II INFORMATION WITH RESPECT TO TRANSACTIONS EFFECTED DURING THE PAST SIXTY DAYS OR SINCE THE MOST RECENT FILING ON SCHEDULE 13D (1) SHARES PURCHASED AVERAGE DATE SOLD(-) PRICE(2) COMMON STOCK-AQUILA INC. GAMCO ASSET MANAGEMENT INC. 5/25/07 69,400 4.1800 5/25/07 1,500- 4.1499 5/25/07 3,400 4.2100 5/25/07 4,000 4.1900 5/25/07 4,000 4.2300 5/24/07 9,000 4.2100 5/24/07 86,900 4.1962 5/24/07 6,400 4.1800 5/24/07 20,000 4.2200 5/23/07 5,000 4.1600 5/23/07 93,700 4.1850 5/22/07 24,900 4.1988 5/22/07 1,300- 4.1749 5/22/07 5,000 4.3000 5/21/07 17,500 4.2100 5/21/07 40,000 4.1900 5/21/07 5,000 4.2100 5/18/07 6,600 4.2100 5/18/07 15,000 4.1867 5/17/07 20,000 4.1900 5/16/07 15,000 4.1967 5/16/07 120,000 4.1883 5/16/07 3,800 4.1900 5/16/07 1,000- 4.1549 5/15/07 200 4.2197 5/15/07 20,000 4.1897 5/15/07 25,000 4.1880 5/14/07 30,000 4.2600 5/14/07 7,000 4.2500 5/14/07 900 4.2350 5/14/07 4,000 4.2700 5/14/07 199,000 4.2149 5/11/07 10,000 4.2200 5/11/07 4,000- 4.1799 5/11/07 10,000 4.2000 5/10/07 400,000 4.2247 5/09/07 2,600- 4.1649 5/08/07 10,000 4.2000 5/07/07 142,500 4.2463 5/03/07 4,500 4.2200 5/03/07 1,500- 4.2063 5/03/07 5,500 4.2200 5/02/07 7,300 4.1950 5/01/07 2,500 4.2100 4/30/07 200,000 4.2367 4/30/07 50,000 4.1800 4/30/07 2,500 4.1621 4/27/07 1,000 4.1900 4/27/07 3,000 4.2200 4/26/07 1,500 4.1800 4/26/07 12,500 4.2080 4/25/07 6,800 4.2000 4/25/07 900- 4.1849 4/25/07 10,000 4.2300 4/25/07 1,000 4.1999 4/24/07 5,000 4.2200 4/23/07 3,000 4.2400 4/20/07 20,000 4.2975 4/20/07 29,000 4.2352 4/19/07 1,500 4.2666 4/19/07 46,000 4.2735 4/19/07 3,000 4.3200 4/17/07 2,000 4.3000 4/13/07 20,000- 4.2099 4/12/07 2,000- 4.1899 4/12/07 4,000 4.2500 4/11/07 9,000- 4.2158 4/11/07 1,200 4.2000 4/09/07 20,000 4.2238 4/05/07 20,000 4.2200 3/30/07 5,000 4.1600 3/30/07 3,000 4.1600 3/30/07 20,000 4.1900 3/29/07 1,700 4.1800 3/29/07 43,600 4.2100 3/29/07 15,000 4.1767 3/28/07 18,300 4.1800 3/27/07 5,000 4.1800 3/27/07 4,000 4.1800 3/27/07 10,000 4.1900 3/22/07 7,400 4.1941 3/21/07 20,000- 4.1499 3/21/07 600 4.1700 3/19/07 11,300 4.1000 3/19/07 11,500 4.1000 GABELLI ASSOCIATES LTD 5/03/07 16,500- 4.2063 4/30/07 15,000 4.1621 4/27/07 9,000 4.1900 4/26/07 9,000 4.1800 4/25/07 16,100 4.1999 GABELLI ASSOCIATES FUND II 5/03/07 1,500- 4.2063 4/30/07 1,500 4.1621 4/27/07 1,000 4.1900 4/26/07 1,000 4.1800 4/25/07 1,000 4.1999 GABELLI ASSOCIATES FUND 5/03/07 15,500- 4.2063 4/30/07 16,000 4.1621 4/27/07 9,000 4.1900 4/26/07 8,500 4.1800 4/25/07 15,500 4.1999 GABELLI ADVISERS, INC. 10/07/98 792 23.9808 GABELLI FUNDS, LLC. GLOBAL UTILITY & INCOME TRUST 3/19/07 20,000 4.1000 GABELLI UTILITY FUND 5/09/07 100,000 4.2200 4/27/07 50,000 4.2200 4/26/07 50,000 4.2200 4/20/07 100,000 4.2498 4/17/07 215,700 4.3400 4/17/07 500 4.3000 4/16/07 183,800 4.2957 3/30/07 300,000 4.1833 GABELLI SMALL CAP GROWTH FUND 4/17/07 160,000 4.3100 GABELLI EQUITY TRUST 5/16/07 100,000 4.1850 GABELLI DIVIDEND & INCOME TRUST 5/22/07 400,000 4.2250 5/16/07 67,700 4.1900 5/15/07 70,800 4.1900 5/02/07 1,400 4.1900 5/01/07 60,100 4.1900 4/30/07 100,000 4.1848 THE GABELLI GLOBAL DEAL FUND 4/09/07 1,000 4.2100 4/05/07 298,600 4.2100 GABELLI ASSET FUND 4/19/07 132,500 4.2918 4/18/07 240,500 4.3000 4/17/07 27,000 4.3000 (1) UNLESS OTHERWISE INDICATED, ALL TRANSACTIONS WERE EFFECTED ON THE NYSE. (2) PRICE EXCLUDES COMMISSION. Exhibit A JOINT FILING AGREEMENT In accordance with Rule 13d-1(f) under the securities Exchange Act of 1934, as amended, the undersigned hereby agree to the joint filing with all other Reporting Entities (as such term is defined in the Schedule 13D referred to below) on behalf of each of them of a statement on Schedule 13D (including amendments thereto) with respect to the Common Stock of Aquila, Inc., and that this Agreement be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts all of which taken together shall constitute one and the same instrument. IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this May 29, 2007. MARIO J. GABELLI GGCP, INC. MJG ASSOCIATES, INC. GABELLI FOUNDATION, INC. LYNCH INTERACTIVE CORPORATION By:/s/ James E. McKee James E. McKee Attorney-in-Fact GAMCO INVESTORS, INC. GABELLI FUNDS, LLC GABELLI SECURITIES, INC. GABELLI & COMPANY, INC. By: /s/ James E. McKee James E. McKee Secretary or Assistant Secretary GAMCO ASSET MANAGEMENT INC. By:/s/ Douglas R. Jamieson Douglas R. Jamieson President -----END PRIVACY-ENHANCED MESSAGE-----