**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**_______________________**

 

**FORM** **10-Q**

 
| **(Mark One)**                                                              |                                                                  |
|-----------------------------------------------------------------------------|-----------------------------------------------------------------------|
| **x**                                                                       | **QUARTERLY REPORT PURSUANT TO SECTION** **13 OR 15(d) OF THE**  |
|                                                                        | **SECURITIES EXCHANGE ACT OF 1934**                                   |
|                                                                        |
| **For the quarterly period ended March 31, 2006**                           |
|                                                                        |
| **OR**                                                                      |
|                                                                        |
| **o**                                                                       | **TRANSITION REPORT PURSUANT TO SECTION** **13 OR 15(d) OF THE** |
|                                                                        | **SECURITIES EXCHANGE ACT OF 1934**                                   |
|                                                                        |
| **For the transition period from** **__________ to** **________** |
|                                                                        |
| **Commission file number: 1-03562**                                         |

 

**_______________________**

 

**AQUILA,** **INC.**

(Exact name of registrant as specified in its charter)

 
| **Delaware**                             | **44-0541877**                    |
|------------------------------------------|-----------------------------------|
| (State or other jurisdiction of          | (IRS Employer Identification No.) |
| incorporation or organization)           |                              |
|                                     |                              |
| **20 West Ninth Street, Kansas City,**   | **64105**                         |
| **Missouri**                             | (Zip Code)                        |
| (Address of principal executive offices) |                              |

 

Registrant’s telephone number, including area code **816-421-6600**

**_______________________**

 

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x  No o

 

Indicate by check mark whether the registrant is an accelerated filer (as defined in Rule 12b-2 of the Exchange Act).  Yes x  No o

 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  Yes o  No x

 

Indicate the number of shares outstanding of each of the registrant’s classes of common stock, as of the latest practicable date.

 
| **Class**                  | **Outstanding at April 28, 2006** |
|----------------------------|-----------------------------------|
| Common Stock, $1 par value | 373,832,811                       |