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Industry Mergers & Acquisitions
Industry Mergers & Acquisitions
- Updated 07/16/21
Below is a list of major energy (electric power) mergers and
acquisitions since 1985 and all others since 1996. Type in a keyword for a specific
search of purchasers and sellers. Using the pull-down menu, you may sort by purchaser,
seller, status or date complete. The same pull-down allows you to filter by location
or merger type to narrow your results. To view purchasers within a specific alpha section,
click the desired letter below.
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Purchaser |
Seller |
Status |
 |
Date Complete |
Value ($M) |
Wysak Inc. |
Undisclosed Seller |
Completed |
 |
06/21/2005 |
n/a |
Wysak Inc. |
Undisclosed Seller |
Completed |
 |
07/28/2005 |
n/a |
Wyoming Oil & Minerals, Inc. |
NRG Resources |
Completed |
 |
06/04/2002 |
n/a |
WPS Power Development, Inc. |
CH Energy Group, Inc. |
Unknown |
 |
|
61 |
WPS Energy Services, Inc. |
Advantage Energy, Inc. |
Completed |
 |
07/01/2004 |
n/a |
WPPI Energy |
Menasha, City of |
Completed |
 |
04/06/2011 |
18 |
WPPI Energy |
Wisconsin Energy Corporation |
Unknown |
 |
|
239 |
WPL Holdings |
Interstate Energy Corporation |
Completed |
 |
04/20/1998 |
n/a |
WorleyParsons |
UniField Engineering, Inc. |
Unknown |
 |
|
17 |
Woodward Marketing, LLC |
Innovative Gas Services (IGS) |
Completed |
 |
12/13/2001 |
n/a |
Woodside Petroleum Limited |
Energy Partners |
Failed |
 |
|
880 |
Woodside Petroleum Limited |
Gryphon Exploration Company |
Completed |
 |
09/01/2005 |
297 |
Wolverine Power Supply Cooperative Inc |
FirstEnergy Generation Corporation |
Completed |
 |
03/31/2010 |
n/a |
Wolverine Power Supply Cooperative Inc |
FirstEnergy Generation Corporation |
Completed |
 |
12/31/2010 |
n/a |
Wisconsin Public Service Corporation |
Wisconsin Fuel and Light |
Completed |
 |
04/02/2001 |
55 |
Wisconsin Public Service Corporation |
Calpine Corporation |
Completed |
 |
12/17/2002 |
120 |
Wisconsin Public Service Corporation |
MGE Energy |
Completed |
 |
09/24/2001 |
n/a |
Wisconsin Public Service Corporation |
Consolidated Papers, Inc. |
Completed |
 |
08/25/2000 |
n/a |
Wisconsin Public Service Corporation |
Fox Energy Company LLC |
Unknown |
 |
|
440 |
Wisconsin Power & Light Company |
Wind Capital Group, LLC |
Completed |
 |
|
n/a |
Wisconsin Power & Light Company |
Wisconsin Electric Power Company |
Completed |
 |
03/01/2011 |
n/a |
Wisconsin Power & Light Company |
Riverside Energy Center, LLC |
Completed |
 |
01/02/2013 |
392 |
Wisconsin Power & Light Company |
Alliant Energy Resources, Inc. |
Completed |
 |
06/01/2009 |
92 |
Wisconsin Energy Corporation |
ESELCO Inc |
Completed |
 |
05/29/1998 |
71 |
Wisconsin Energy Corporation |
Integrys Energy Group, Inc. |
Completed |
 |
04/08/2015 |
5,700 |
|