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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) |
Infinity Wind Power |
Zephyr Wind Power |
Completed |
 |
01/28/2013 |
n/a |
Innogy Holdings PLC |
Yorkshire Power, plc. |
Completed |
 |
03/31/2001 |
2,700 |
Inter Pipeline Fund |
Williams Companies, Inc |
Completed |
 |
07/28/2004 |
540 |
Integrys Energy Group, Inc. |
Upper Peninsula Energy Corporation |
Completed |
 |
09/29/1998 |
70 |
International Energy Group Limited |
Undisclosed Seller |
Completed |
 |
08/09/2004 |
n/a |
Infinity Oil and Gas of Texas, Inc. |
Undisclosed Seller |
Unknown |
 |
|
n/a |
Iberdrola SA |
UIL Holdings Corporation |
Pending |
 |
02/26/2015 |
n/a |
International Power Plc |
Trinergy |
Unknown |
 |
|
2,500 |
Invenergy LLC |
Tri Global Energy, LLC |
Completed |
 |
09/06/2019 |
n/a |
Inergy, LP |
Tres Palacios Gas Storage LLC |
Completed |
 |
|
725 |
International Energy Ltd |
Transworld Oil & Gas |
Unknown |
 |
|
n/a |
Innergex Renewable Energy Inc |
TransCanada Corporation |
Pending |
 |
|
484 |
InterGen |
TransAlta Corporation |
Unknown |
 |
|
304 |
InfrastruX Group, Inc. |
Trafford Corporation |
Completed |
 |
04/19/2001 |
200 |
Innergex II |
Terna Energy |
Completed |
 |
08/18/2020 |
n/a |
Innergex Power Income Fund |
TD Capital Group Ltd |
Unknown |
 |
|
14 |
Intergy, LLC |
Solstice Group, Inc., The |
Completed |
 |
06/19/2000 |
n/a |
Itron, Inc. |
Silicon Energy |
Completed |
 |
03/04/2003 |
71 |
Indiana Energy Inc. |
SIGCORP, Inc. |
Completed |
 |
03/31/2000 |
1,900 |
International Power Plc |
Sempra Generation |
Completed |
 |
07/10/2006 |
1,140 |
Iberdrola SA |
Scottish Power PLC |
Completed |
 |
04/24/2007 |
22,000 |
Itron, Inc. |
Schlumberger's Electricity Metering business (SEM) |
Completed |
 |
07/16/2003 |
255 |
IEnova |
Saavi EnergĂa |
Completed |
 |
04/05/2021 |
80 |
International Power Plc |
RWE Power AG |
Unknown |
 |
|
n/a |
Iberdrola SA |
RWE AG |
Completed |
 |
|
n/a |
|