0000018654-12-000005.txt : 20120625 0000018654-12-000005.hdr.sgml : 20120625 20120625094439 ACCESSION NUMBER: 0000018654-12-000005 CONFORMED SUBMISSION TYPE: 3 PUBLIC DOCUMENT COUNT: 2 CONFORMED PERIOD OF REPORT: 20120613 FILED AS OF DATE: 20120625 DATE AS OF CHANGE: 20120625 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: MARK RICHARD J CENTRAL INDEX KEY: 0001190100 FILING VALUES: FORM TYPE: 3 SEC ACT: 1934 Act SEC FILE NUMBER: 001-03672 FILM NUMBER: 12923638 MAIL ADDRESS: STREET 1: 1901 CHOUTEAU AVENUE MC-1310 CITY: ST. LOUIS STATE: MO ZIP: 63103 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Ameren Illinois Co CENTRAL INDEX KEY: 0000018654 STANDARD INDUSTRIAL CLASSIFICATION: ELECTRIC & OTHER SERVICES COMBINED [4931] IRS NUMBER: 370211380 STATE OF INCORPORATION: IL FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 300 LIBERTY STREET CITY: PEORIA STATE: IL ZIP: 61602 BUSINESS PHONE: 309-677-5271 MAIL ADDRESS: STREET 1: 300 LIBERTY STREET CITY: PEORIA STATE: IL ZIP: 61602 FORMER COMPANY: FORMER CONFORMED NAME: CENTRAL ILLINOIS PUBLIC SERVICE CO DATE OF NAME CHANGE: 19920703 3 1 edgar.xml PRIMARY DOCUMENT X0205 3 2012-06-13 0 0000018654 Ameren Illinois Co AIL 0001190100 MARK RICHARD J P.O. BOX 66149 ST. LOUIS MO 63166-6149 0 1 0 0 President and CEO No securities to report 0 D G. L. Waters, Asst. Secy. of Ameren Illinois Company, attorney in fact for Richard J. Mark 2012-06-25 EX-24 2 markrichardaic_poa.htm POWER OF ATTORNEY

POWER OF ATTORNEY

WHEREAS, directors, certain officers, and beneficial owners of more than 10% of any equity

security of AMEREN ILLINOIS COMPANY, an Illinois corporation (herein referred to as the

"Company"), as well as certain directors and officers of Company subsidiaries, are required to file with

the Securities and Exchange Commission and the New York Stock Exchange, under Section 16 of the

Securities Exchange Act of 1934, as now and hereafter amended, statements regarding ownership and

change in ownership of equity securities of the Company (the "Reporting Forms"); and

WHEREAS, the undersigned holds a directorship, office or offices in the Company and/or

Company subsidiaries and is required to file such Reporting Forms.

NOW, THEREFORE, the undersigned hereby constitutes and appoints Gregory L. Nelson

and/or G. L. Waters and/or Ronald S. Gieseke and/or Craig W. Stensland and/or any individual who

hereafter holds the offices of Secretary or Assistant Secretary of the Company the true and lawful

attorneys-in-fact of the undersigned, for and in the name, place and stead of the undersigned, to affix

the name of the undersigned (including, without limitation, any electronic signature) to said Reporting

Forms and any amendments thereto, and, for the performance of the same acts, each with power to

appoint in their place and stead and as their substitute, one or more attorneys-in-fact for the

undersigned, with full power of revocation; hereby ratifying and confirming all that said attorneys-in-

fact may do by virtue hereof. The undersigned acknowledges that the foregoing attorney-in-fact, in

serving in such capacity at the request of the undersigned, are not assuming, nor is the Company

assuming, any of the undersigned's responsibilities to comply with Section 16 of the Securities

Exchange Act of 1934. The undersigned further acknowledges that in whatever capacities he may hold

in the Company and/or its subsidiaries in the future, this Power of Attorney shall remain in full force

and effect until such time it would be revoked by the undersigned.

IN WITNESS WHEREOF, the undersigned has hereunto set his hand this 25th day of

June , 2012.

/s/ Richard J. Mark

Richard J. Mark

STATE OF MISSOURI )

) SS.

CITY OF ST. LOUIS )

On this _25th___ day of June , 2012, before me, the undersigned Notary Public in and for

said State, personally appeared Richard J. Mark, known to me to be the person described in and who

executed the foregoing power of attorney and acknowledged to me that he executed the same as his

free act and deed for the purposes therein stated.

IN TESTIMONY WHEREOF, I have hereunto set my hand and affixed my official seal.

/s/ Carla J. Flinn

Carla J. Flinn - Notary Public

State of Missouri

Commissioned for St. Louis City County

My Commission Expires: 04/20/2014

Commission #10399906