Ameren Corporation Mergers and Acquisitions


Ameren Corporation

1901 Chouteau Avenue
St. Louis, MO 63103-3003
United States
Tel:1/314/621-3222
URL: http://www.ameren.com
Primary Symbol & Exchange:
AEE - Common Stock - New York Stock Exchange
Industry:
Utilities
Ameren Corporation Company Snapshot

Ameren Corporation Deal Timeline


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Acquisitions > 100 M$ 10 to 100 M$ < 10M$ Stakes Divestitures

Ameren Corporation M&A History


AmerenUE acquires Aquila Inc-Illinois Peaking(2) from Aquila Inc AmerenUE acquires Aquila Inc-Illinois Peaking(2) from Aquila IncApr 03, 2006

US - AmerenUE, a unit of Ameren Corp, acquired two Illinois peaking plants of Aquila Inc, a provider of energy assets and energy solutions, for an estimated $### mil. The transaction was subject to the approval of regulatory authorities. The transaction

Ameren Corp acquires NRG Energy-Power Plant,MO from NRG Energy Inc Ameren Corp acquires NRG Energy-Power Plant,MO from NRG Energy IncMar 29, 2006

US - Ameren Corp aquired gas-fired power plant located in Vandalia, Missouri of NRG Energy Inc, an electric and gas utility company, for $### mil. The consideration was to consist of $### mil and the assumption of $### mil in

Ameren Corp acquires a minority stake in Electric Energy Inc Ameren Corp acquires a minority stake in Electric Energy IncOct 01, 2004

US - Ameren Corp (AC) raised its interest to ##% from ##%, by acquiring a ##% stake in Electric Energy Inc, an electric utility company, from Dynegy Inc (DI). Concurrently, AC definitively agreed to acquire all the outstanding common stock of

Ameren Corp acquires Illinois Power Co from Dynegy Inc Ameren Corp acquires Illinois Power Co from Dynegy IncOct 01, 2004

US - Ameren Corp (AC) acquired all the outstanding common stock of Illinois Power Co (IP), a provider of energy delivery services, from Dynegy Inc (DI). Concurrently, AC definitively agreed to acquire a ##% stake in Electric Energy Inc from DI

Ameren Corp acquires Aquila-Gas Distn Op,MO from Aquila Inc Ameren Corp acquires Aquila-Gas Distn Op,MO from Aquila IncMay 03, 2004

US - Ameren Corp acquired the natural gas distribution operation, located in Missouri, of Aquila Inc, an electric and gas utility company. Terms were not disclosed. The transaction was subject to the approval of the Missouri Public Service Commission.

Ameren Corp acquires CILCORP Inc from AES Corp Ameren Corp acquires CILCORP Inc from AES CorpJan 31, 2003

US - Ameren Corp (AMC) acquired all the outstanding stock of CILCORP Inc (CCI), an electric and gas utility and holding company, from AES Corp (AES), for an estimated $#.# bil. The consideration consisted of an estimated $### mil in

Trans-Elect Inc acquires Illinois Power-High Voltage from Ameren Corp (pending) Trans-Elect Inc acquires Illinois Power-High Voltage from Ameren Corp (pending)Oct 09, 2002

US - Trans-Elect Inc agreed to acquire a high voltage transmission system of Dynegy Inc's majority-owned Illinois Power Co unit (IPC), an electric and gas utility, for $### mil. The transaction was to include #,### miles of

Ameren Energy Communications acquires Energy Measurement Enterprises Ameren Energy Communications acquires Energy Measurement EnterprisesMay 17, 2000

US - Ameren Energy Communications Inc, a unit of Ameren Corp, acquired Energy Measurement Enterprises, a provider of metering sales services. Terms were not disclosed.

AmerGen Energy Co acquires Illinois Power-Nulcear Station from Ameren Corp AmerGen Energy Co acquires Illinois Power-Nulcear Station from Ameren CorpDec 16, 1999

AmerGen Energy, a joint venture between British Energy and PECO Energy, acquired a nuclear power station, located in Clinton, Illinois, from Illinois Power (IP) for $## mil in cash. Originally, in November ####, IP announced that it was seeking a

MACTEC Inc acquires QST Environmental from Ameren Corp MACTEC Inc acquires QST Environmental from Ameren CorpJun 25, 1999

MACTEC Inc acquired QST Environmental, a unit of CILCORP Inc's QST Enterprises Inc subsidiary, for $## mil in cash.

Ameren Corp acquires Data & Metering Specialties Ameren Corp acquires Data & Metering SpecialtiesApr 05, 1999

Ameren Corp acquired Data & Metering Specialties Inc. Terms were not disclosed.

McLeodUSA Telecommun Svcs acquires QST Communications Inc from Ameren Corp (pending) McLeodUSA Telecommun Svcs acquires QST Communications Inc from Ameren Corp (pending)Jul 27, 1998

McLeodUSA Telecommunications, a unit of McLeodUSA, definitively agreed to acquire QST Communications, a unit of CILCORP's QST Enterprises subsidiary, for an estimated $##.# mil. The consideration was to consist of $## mil in cash and an estimated $#

Union Electric Co acquires CIPSCO Inc Union Electric Co acquires CIPSCO IncDec 31, 1997

Union Electric (UE) merged with CIPSCO to form Ameren (AM) in a stock swap transaction valued at $#.## bil. CIPSCO common shareholders received #.## AM shares and UE common shareholders received # AM share for each share held

Undisclosed Acquiror acquires ESE Land Corp(CILCORP Inc) from Ameren Corp Undisclosed Acquiror acquires ESE Land Corp(CILCORP Inc) from Ameren CorpNov 24, 1997

CILCORP Inc divested its ESE Land Corp unit to an undisclosed acquiror.

QST Energy Inc(CILCORP Inc) acquires Trebor Energy Resources QST Energy Inc(CILCORP Inc) acquires Trebor Energy ResourcesMay 27, 1997

QST Energy, a unit of CILCORP, acquired Trebor Energy Resources. Terms were not disclosed.

IES Industries Inc acquires Union Elec-IA,IL Ret Elec Bus from Ameren Corp IES Industries Inc acquires Union Elec-IA,IL Ret Elec Bus from Ameren CorpDec 31, 1992

IES Industries acquired the Iowa and northwestern Illinois wholesale and retail electric businesses of Union Electric for $##.# mil. Union Electric had announced in June #### that it had received several unsolicited inquiries from undisclosed acquirors for its Iowa

Central Illinois Public Svc Co acquires Union Elec-N Ill Ret Elec Bus from Ameren Corp Central Illinois Public Svc Co acquires Union Elec-N Ill Ret Elec Bus from Ameren CorpDec 30, 1992

Central Illinois Public Service, a unit of CIPSCO, acquired Union Electric's northern Illinois retail electric business for $#.# mil.

Undisclosed Acquiror acquires CILCORP-3 Leveraged Lease from Ameren Corp Undisclosed Acquiror acquires CILCORP-3 Leveraged Lease from Ameren CorpMar 01, 1991

CILCORP divested itself of an ##% equity interest in three leveraged lease investments.

CILCORP Lease Management acquires Emerson Leasing Ventures Inc CILCORP Lease Management acquires Emerson Leasing Ventures IncJun 29, 1988

Emerson Leasing Ventures was acquired by CILCORP Lease Management, a joint venture company formed by CILCORP and Lease Management. Terms were not disclosed. Goldman Sachs acted as financial advisor to Emerson.

Ameren Corporation M&A Summary


Ameren Corporation has made 10 acquisitions while taking stakes in 1 companies. Ameren Corporation has 7 divestitures during this period.
YearAcquisitionsStakesDivestitures
2009000
2008000
2007000
2006200
2005000
2004211
2003100
2002000
2001000
2000100
1999102
1998000
1997201
1996000
1995000
1994000
1993000
1992002
1991001
1990000
1989000
1988100
Total1017

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