Company Names | Announcement Date |
Closing Date
|
Continental Gas Energy systems and PNM Resources
(PNM is selling its natural gas operations)
|
January 15, 2008
|
January 30, 2009
|
Berkshire Hathaway and Constellation Energy Group
(MidAmerican Energy, owned by Berkshire Hathaway, is the official acquiring party)
|
September 17, 2008
|
Terminated 12/17/08
|
MDU Resources Group and Intermountain Gas Co.
|
July 1, 2008
|
October 1, 2008
|
Sempra Energy and EnergySouth, Inc.
|
July 25, 2008
|
October 1, 2008
|
UGI Corp. and PPL Corp.
(UGI Corp. to acquire PPL Gas Utilities Corp. and Penn Fuel Propane)
|
March 5, 2008
|
October 1, 2008
|
Iberdrola S.A. and Energy East Corp.
|
June 25, 2007
|
September 16, 2008
|
Continental Energy Systems, LLC, and PNM Resources
(PNM is selling its natural gas operations and buying Continental’s electric business/ Continental is the parent company of Semco Energy)
|
January 15, 2008
|
Portion of Deal Terminated July 22, 2008
|
Great Plains Energy and Aquila
(Aquila's Missouri-based utilities, Missouri Public Service Company and St. Joseph Light & Power)
|
February 7, 2007
|
July 14, 2008
|
Black Hills and Aquila
(One regulated electric utility in Colorado; Aquila's regulated gas utilities in Colorado, Kansas, Nebraska and Iowa; and a customer service center and centralized natural gas operation in Nebraska)
|
February 7, 2007
|
July 14, 2008
|
SourceGas LLC (GE) and Southwestern Energy
(Arkansas Western Gas Company)
|
November 14, 2007
|
July 1, 2008
|
Equitable Resources and Dominion Resources (Pennsylvania and West Virginia natural gas distribution assets)
|
March 2, 2006
|
Terminated January 15, 2008
|
Energy West and Sempra Energy
Penobscot Natural Gas Co. Inc. (Maine)
|
February 5, 2007
|
December 1, 2007
|
Cap Rock Holding Corp. and Semco Energy
|
February 22, 2007
|
November 9, 2007
|
Energy West and Sempra Energy
(Frontier Utilities of North Carolina Inc., (North Carolina)
|
February 5, 2007
|
October 1, 2007
|
Kohlberg Kravis Roberts & Co. and TXU Corp.
|
February 25, 2007
|
September 7, 2007
|
National Grid and KeySpan Corp.
|
February 27, 2006
|
August 25, 2007
|
Babcock & Brown Infrastructure and Northwestern Energy Corp.
|
June 7, 2006
|
Terminated July 24, 2007
|
MDU Resources Group and Cascade Natural Gas Corp.
|
July 9, 2006
|
July 2, 2007
|
Northern New England Energy Corp. (Gaz Metro) and Green Mountain Power Corp.
|
June 21, 2006
|
April 12, 2007
|
GE Energy Financial Services and Kinder Morgan (Colorado, Nebraska, Wyoming and Hermosillo, Mexico, natural gas distribution assets)
|
August 14, 2006
|
March 30, 2007
|
TransCanada Corp. and El Paso Corp.
(ANR Pipeline Company, ANR Storage Company and 3.55% interest in Great Lakes Gas Transmission Limited Partnership)
|
December 22, 2006
|
February 22, 2007
|
WPS Resources Corp. and Peoples Energy Corp.
|
July 10, 2006
|
February 21, 2007
|
Constellation Energy and FPL Group
|
December 19, 2005
|
Terminated Oct. 25, 2006
|
Exelon and PSEG
|
December 20, 2004
|
Terminated Sept. 15, 2006
|
National Grid and Southern Union Company (Rhode Island natural gas distribution assets)
|
February 16, 2006
|
August 24, 2006
|
UGI Corp. and Southern Union Company (PG Energy natural gas utility assets)
|
January 27, 2006
|
August 24, 2006
|
WPS Resources and Aquila (MI and MN natural gas operations)
|
September 21, 2005
|
July 3, 2006
|
Empire District Electric Company and Aquila (MO natural gas operations)
|
September 21, 2005
|
June 1, 2006
|
Duke Energy and Cinergy
|
May 9, 2005
|
April 3, 2006
|
MidAmerican Energy Holdings and Pacificorp (Scottish Power plc)
|
May 24, 2005
|
March 21, 2006
|
Kinder Morgan and Terasen
|
August 1, 2005
|
November 30, 2005
|
Allegheny Energy (Mountaineer Gas and other NG operations) and IGS Utilities/AchLight Capital Partners
|
August 4, 2004
|
September 30, 2005
|
PNM Resources Inc. and TNP Enterprises Inc. (Includes Texas-New Mexico Power Co. & First Choice Power)
|
July 25, 2004
|
June 6, 2005
|
Saguaro Utility Group and UniSource
|
November, 2003
|
Terminated Dec. 30, 2004
|
AGL Resources and NUI Corp.
|
July 15, 2004
|
December 1, 2004
|
Ameren Corp. and Illinois Power
|
February 3, 2004
|
October 1, 2004
|
Atmos Energy and TXU Gas
|
June 16, 2004
|
October 1, 2004
|
AmerenUE and Aquila’s Missouri eastern gas system
|
|
May 1, 2004
|
Exelon and Illinois Power Co.
|
September 2003
|
Terminated 2004
|
Piedmont Natural Gas Co. and North Carolina Natural Gas (from Progress Energy)
|
October 10, 2002
|
September 30, 2003
|
Piedmont Natural Gas Co. and NC Gas (from NUI)
|
May 16, 2002
|
September 30, 2003
|
UniSource Energy Corp. and Citizens Communications Co. gas and electric system assets
|
April 1, 2003
|
August 11, 2003
|
Southern Union and Panhandle Eastern Pipeline Co. & Subsidiaries
|
|
June 11, 2003
|
Oneok and Southern Union Texas Gas Assets
|
|
January 1, 2003
|
Ameren and CILCORP
|
April, 2002
|
January, 2003
|
Atmos Energy and Mississippi Valley Gas Company
|
September 24, 2001
|
December 1, 2002
|
Exelon and Sithe New England Holdings
|
June, 2002
|
November, 2002
|
Constellation and NewEnergy Unit of AES
|
June, 2002
|
September, 2002
|
E.On and Cinergy and DPL
|
May, 2002
|
Terminated
|
National Grid and Northeast Utilities
|
May, 2002
|
Terminated
|
Pepco and Conectiv
|
February 12, 2001
|
August 1, 2002
|
Energy East and RGS Energy Group
|
February 20, 2001
|
June 28, 2002
|
Xcel Energy and NRG
|
February, 2002
|
June, 2002
|
Northwest Natural Gas Co. and Portland General Electric Co.
|
October 8, 2001
|
Terminated – July 1, 2002
|
Duke Energy and Westcoast Energy Inc.
|
September 21, 2001
|
March 14, 2002
|
NorthWestern Corp. and Montana Power’s distribution assets
|
October 2, 2000
|
March 12, 2002
|
National Grid and Niagara Mohawk Holdings Inc.
|
September 6, 2000
|
January 31, 2002
|
MGE and Prairie du Chien
|
December, 2001
|
December, 2001
|
Dynegy and Enron
|
November 9, 2001
|
Terminated – Nov 28, 2001
|
Atmos Energy and Citizens Utilities (Louisiana gas operations)
|
April 13, 2000
|
July 2, 2001
|
DTE Energy and MCN Energy
|
October 5, 1999
|
May 31, 2001
|
FPL Group and Entergy
|
July 31, 2000
|
Terminated – Apr 2, 2001
|
NUI and Virginia Gas Company
|
June 14, 2000
|
March 28, 2001
|
Consolidated Edison and Northeast Utilities
|
October 13, 1999
|
Terminated – Mar 5, 2001
|
UtiliCorp United and The Empire District Electric Company
|
May 11, 1999
|
Terminated – Jan 1, 2001
|
Sierra Pacific and Portland General Electric
|
November 8, 1999
|
Terminated
|
El Paso Energy and Coastal Corporation
|
January 18, 2000
|
January 29, 2001
|
UtiliCorp United and St. Joseph Light & Power
|
March 5, 1999
|
December 29, 2000
|
PowerGen plc and LG&E Energy
|
February 28, 2000
|
December 11, 2000
|
CP&L and Florida Progress became Progress Energy Inc.
|
August 23, 1999
|
November 30, 2000
|
KeySpan Energy Corp. and Eastern Enterprises
|
November 4, 1999
|
November 8, 2000
|
Eastern Enterprises and EnergyNorth, Inc.
|
October 10, 1998
|
November 8, 2000
|
NiSource and Columbia Energy Group
|
June 3, 1999
|
November 1, 2000
|
Vectren Corp and DPL’s natural gas distribution business
|
December 15, 1999
|
October 31, 2000
|
AGL Resources and Virginia Natural Gas
|
May 8, 2000
|
October 6, 2000
|
Southern Union and Fall River Gas
|
October 5, 1999
|
September 28, 2000
|
Southern Union and Providence Energy
|
November 15, 1999
|
September 28. 2000
|
Southern Union and Valley Resources, Inc.
|
December 1, 1999
|
September 20, 2000
|
Energy East and Berkshire Energy Resources
|
November 10, 1999
|
September 1, 2000
|
Energy East and CMP Group
|
June 15, 1999
|
September 1, 2000
|
Energy East and CTG Resources, Inc.
|
July 1999
|
September 1, 2000
|
Allegheny Energy, Inc. and Mountaineer Gas Company
|
December 20, 1999
|
August 24, 2000
|
New Century Energies and Northern States Power
|
March 25, 1999
|
August 21, 2000
|
Unicom Corporation and PECO Energy Company became Exelon
|
September 23, 1999
|
August 17, 2000
|
Wisconsin Energy and WICOR
|
June 28, 1999
|
April 26, 2000
|
Indiana Energy and SIGCORP became Vectren
|
June 14, 1999
|
March 31, 2000
|
Duke Energy and East Tennessee Natural Gas
|
January 4, 2000
|
March 14, 2000
|
Berkshire Hathaway and MidAmerican Energy
|
October 25, 1999
|
March 14, 2000
|
Northeast Utilities and Yankee Energy Systems, Inc.
|
June 15, 1999
|
March 1, 2000
|
SCANA and Public Service Company of North Carolina
|
February 17, 1999
|
February 9, 2000
|
Energy East and Connecticut Energy
|
April 23, 1999
|
February 8, 2000
|
Dynegy and Illinova
|
June 14, 1999
|
February 2, 2000
|
Dominion Resources and Consolidated Natural Gas
|
February 22, 1999
|
January 28, 2000
|
ONEOK and Southwest Gas
|
December 14, 1998
|
Terminated (1/21/99)
|
Southern Union and Pennsylvania Enterprises
|
June 7, 1999
|
November 4, 1999
|
SEMCO Energy and ENSTAR Natural Gas
|
July 15, 1999
|
November 2, 1999
|
El Paso Energy and Sonat
|
March 15, 1999
|
October 25, 1999
|
AES and CILCORP
|
November 23, 1998
|
October 18, 1999
|
Kinder Morgan and KN Energy
|
July 8, 1999
|
October 7, 1999
|
Eastern Enterprises and Colonial Gas
|
October 10, 1998
|
August 31, 1999
|
Boston Edison (BEC) and Commonwealth Energy became NSTAR
|
December 7, 1998
|
August 25, 1999
|
Sierra Pacific and Nevada Power
|
April 30, 1998
|
July 28, 1999
|
Carolina Power & Light and North Carolina Natural Gas
|
November 11, 1998
|
July 15, 1999
|
Consolidated Edison and Orange and Rockland
|
May 11, 1998
|
July 9, 1999
|
CalEnergy and MidAmerican Energy
|
August 12, 1998
|
March 12, 1999
|
NIPSCO Industries and Bay State Gas Co.
|
December 18, 1997
|
February 12, 1999
|
Licking Rural Electrification and National Gas & Oil Co.
|
|
October 28, 1998
|
Allegheny Power System and DQE (parent of Duquesne) Light)
|
April 7, 1997
|
Terminated
|
Citizens Utilities and St. Charles Natural Gas Co.
|
August 26, 1998
|
October 1, 1998
|
Eastern Enterprises and Essex County Gas Co.
|
December 22, 1997
|
September 30, 1998
|
WPS Resources Corp. and Upper Peninsula Energy Corp.
|
July 10, 1997
|
September 29, 1998
|
PP&L Resources and Penn Fuel
|
June 1, 1997
|
August 21, 1998
|
Northern States Power and Black Mountain Gas
|
December 31, 1997
|
July 24, 1998
|
TransCanada Pipelines and NOVA
|
January 26, 1998
|
July 2, 1998
|
ENOVA Corp. and Pacific Enterprises
|
October 1, 1996
|
June 26, 1998
|
Brooklyn Union Gas Co. and Long Island Lighting Co.
|
December 29, 1996
|
May 28, 1998
|
LG&E Energy Corp. and KU Energy
|
May 21, 1997
|
May 1, 1998
|
WPL Holdings and IES Industries and Interstate Power
|
November 1, 1995
|
April 1, 1998
|
Delmarva Power and Atlantic Energy
|
August 12, 1996
|
March 2, 1998
|
KN Energy and MidCon
|
December 18, 1997
|
January 30, 1998
|
Sonat Inc. and Zilkha Energy Co.
|
November 23, 1997
|
January 30, 1998
|
Updated February 1, 2009 - Page
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