**Exhibit        99**

**SECURITIES        AND EXCHANGE COMMISSION**

**Washington,        D. C. 20549**

**FORM        11-K**

| [X]    | ANNUAL                  REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES |
|--------|----------------------------------------------------------------------------|
|   | EXCHANGE                  ACT OF 1934                                      |

| [                    ] | TRANSITION                  REPORT PURSUANT TO SECTION 15(d) OF THE SECURITIES |
|----------------------------------|--------------------------------------------------------------------------------|
|                             | EXCHANGE                  ACT OF 1934                                          |

| A.     | Full                  title of the plan and address of the plan, if different from that                  of the                  issuer |
|--------|-----------------------------------------------------------------------------------------------------------------------------------------|
|   | named                  below:                                                                                                           |

**Peoples        Energy Corporation**

**Employee        Stock Purchase Plan**

| B.     | Name                  of issuer of the securities held pursuant to the plan and the address                  of                  its |
|--------|--------------------------------------------------------------------------------------------------------------------------------------|
|   | principal                  executive office:                                                                                         |

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|   | Peoples                  Energy Corporation   |   |
|--------|-----------------------------------------------|--------|
|   | Employee                  Stock Purchase Plan |   |
|   | (Name                  of Plan)               |   |

|     Date:                  December 14, 2006 |                                       By:                        /s/ Thomas A. Nardi       |   |
|------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|--------|
|                                                             | (Signature)                                                                                                                                                                                                                                           |   |
|                                                             | Thomas                  A. Nardi                                                                                                                                                                                                                      |   |
|                                                             | Executive                  Vice President and                                                                                                                                                                                                         |   |
|                                                             | Chief                  Financial Officer                                                                                                                                                                                                              |   |
|                                                             | Peoples                  Energy Corporation                                                                                                                                                                                                           |   |

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