Completed Merger Table (02.01.09).doc



|Company Names |Announcement Date |Closing Date |

|Continental Gas Energy systems and PNM Resources |January 15, 2008 |January 30, 2009 |

|(PNM is selling its natural gas operations) | | |

|Berkshire Hathaway and Constellation Energy Group |September 17, 2008 | |

|(MidAmerican Energy, owned by Berkshire Hathaway, is the official acquiring party) | |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. |March 5, 2008 |October 1, 2008 |

|(UGI Corp. to acquire PPL Gas Utilities Corp. and Penn Fuel Propane) | | |

|Iberdrola S.A. and Energy East Corp. |June 25, 2007 |September 16, 2008 |

|Continental Energy Systems, LLC, and PNM Resources |January 15, 2008 | |

|(PNM is selling its natural gas operations and buying Continental’s electric business/ Continental | |Portion of Deal Terminated July 22, 2008 |

|is the parent company of Semco Energy) | | |

|Great Plains Energy and Aquila |February 7, 2007 |July 14, 2008 |

|(Aquila's Missouri-based utilities, Missouri Public Service Company and St. Joseph Light & Power) | | |

|Black Hills and Aquila |February 7, 2007 |July 14, 2008 |

|(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) | | |

|SourceGas LLC (GE) and Southwestern Energy |November 14, 2007 |July 1, 2008 |

|(Arkansas Western Gas Company) | | |

|Equitable Resources and Dominion Resources (Pennsylvania and West Virginia natural gas distribution |March 2, 2006 | |

|assets) | |Terminated January 15, 2008 |

|Energy West and Sempra Energy |February 5, 2007 |December 1, 2007 |

|Penobscot Natural Gas Co. Inc. (Maine) | | |

|Cap Rock Holding Corp. and Semco Energy |February 22, 2007 |November 9, 2007 |

|Energy West and Sempra Energy |February 5, 2007 |October 1, 2007 |

|(Frontier Utilities of North Carolina Inc., (North Carolina) | | |

|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, |August 14, 2006 |March 30, 2007 |

|natural gas distribution assets) | | |

|TransCanada Corp. and El Paso Corp. |December 22, 2006 |February 22, 2007 |

|(ANR Pipeline Company, ANR Storage Company and 3.55% interest in Great Lakes Gas Transmission | | |

|Limited Partnership) | | |

|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 |August 4, 2004 |September 30, 2005 |

|Partners | | |

|PNM Resources Inc. and TNP Enterprises Inc. (Includes Texas-New Mexico Power Co. & First Choice |July 25, 2004 |June 6, 2005 |

|Power) | | |

|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 |

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