**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**WASHINGTON, D.C. 20549**

 

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**FORM 10-Q**

 

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**QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15 (d)**

**OF THE SECURITIES EXCHANGE ACT OF 1934**

 

**For the quarterly period ended March 31, 2006**

 

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| **Commission**

**File Number**

  | **Name of Registrant**

**State of Incorporation**

**Address of Principal  Executive**

**Offices and Telephone  Number**

                                     | **IRS Employer**

**Identification Number**

  |
|-----------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------|
| **1-267**                               | **ALLEGHENY ENERGY, INC.**

**(A Maryland Corporation)**

**800 Cabin Hill Drive**

**Greensburg, Pennsylvania 15601**

**Telephone (724) 837-3000**                  | **13-5531602**                                      |
|                                    |                                                                                                                                                                  |                                                |
| **1-5164**                              | **MONONGAHELA POWER COMPANY**

**(An Ohio Corporation)**

**1310 Fairmont Avenue**

**Fairmont, West Virginia 26554**

**Telephone (304) 366-3000**                   | **13-5229392**                                      |
|                                    |                                                                                                                                                                  |                                                |
| **1-3376-2**                            | **THE POTOMAC EDISON COMPANY**

**(A Maryland and Virginia Corporation)**

**800 Cabin Hill Drive**

**Greensburg, Pennsylvania 15601**

**Telephone (724) 837-3000** | **13-5323955**                                      |
|                                    |                                                                                                                                                                  |                                                |
| **0-14688**                             | **ALLEGHENY**

**GENERATING COMPANY**

**(A Virginia Corporation)**

**800 Cabin Hill Drive**

**Greensburg, Pennsylvania 15601**

**Telephone (724) 837-3000**       | **13-3079675**                                      |

 

 

 

This combined Form 10-Q is separately filed by Allegheny Energy, Inc., Monongahela Power Company, The Potomac Edison Company and Allegheny Generating Company. Information contained in the Form 10-Q relating to Monongahela Power Company, The Potomac Edison Company and Allegheny Generating Company is filed by each such registrant on its own behalf. Each of Monongahela Power Company, The Potomac Edison Company and Allegheny Generating Company makes no representation as to information relating to registrants other than itself. 

 

 

Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. 

 

|                         |             |            |
|------------------------------|------------------|-----------------|
| Allegheny Energy, Inc.       | Yes  x | No  o |
| Monongahela Power Company    | Yes  o | No  x |
| The Potomac Edison Company   | Yes  o | No  x |
| Allegheny Generating Company | Yes  o | No  x |

  

Indicate by check mark whether the registrants (1) have 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 and (2) have been subject to such filing requirements for the past 90 days.   Yes  x    No  o

 

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, or a non-accelerated filer (as defined in Rule 12b-2 of the Act). 

 

|                         |                                                  |                                   |                                       |
|------------------------------|-------------------------------------------------------|----------------------------------------|--------------------------------------------|
|                         | **Large** **accelerated** **filer**

  | **Accelerated** **filer**

  | **Non-accelerated** **filer**

  |
| Allegheny Energy, Inc.       | x                                                     | o                                      | o                                          |
| Monongahela Power Company    | o                                                     | o                                      | x                                          |
| The Potomac Edison Company   | o                                                     | o                                      | x                                          |
| Allegheny Generating Company | o                                                     | o                                      | x                                          |

 

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Act). 

 

|                         |             |            |
|------------------------------|------------------|-----------------|
| Allegheny Energy, Inc.       | Yes  o | No  x |
| Monongahela Power Company    | Yes  o | No  x |
| The Potomac Edison Company   | Yes  o | No  x |
| Allegheny Generating Company | Yes  o | No  x |

 

Number of shares outstanding of each class of common stock as of April 30, 2006: 

 

| Allegheny Energy, Inc.       | 163,340,141 | ($1.25 par value)            |
|------------------------------|-------------|------------------------------|
| Monongahela Power Company    | 5,891,000   | ($50.00 par value) |
| The Potomac Edison Company   | 22,385,000  | ($0.01 par value)            |
| Allegheny Generating Company | 1,000       | ($1.00 par value)            |

 

 

 

 

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