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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) |
Duke Energy Ohio |
Zahren Alternative Power Corporation |
Completed |
 |
05/13/2001 |
98 |
Dominion Resources, Inc. |
Wisconsin Public Service Corporation |
Completed |
 |
07/05/2005 |
220 |
Dairyland Power Coop |
Wisconsin Public Service Corporation |
Completed |
 |
12/01/2004 |
n/a |
Dominion Virginia Power |
Westmoreland Coal Company |
Completed |
 |
03/26/2001 |
25 |
Duke Energy Corporation |
Westcoast Energy, Inc. |
Completed |
 |
03/14/2002 |
8,500 |
Dune Energy, Inc. |
Voyager Partners, Limited |
Unknown |
 |
|
68 |
Dune Energy, Inc. |
Voyager Partners, Limited |
Completed |
 |
12/16/2005 |
25 |
Direct Energy |
Vectren Corporation |
Completed |
 |
01/03/2012 |
39 |
Dominion Resources, Inc. |
USGen New England, Inc. |
Completed |
 |
01/01/2005 |
656 |
Duke Energy Field Services, LLC |
UP Fuels |
Completed |
 |
03/31/1999 |
1,350 |
Dominion Resources, Inc. |
United American Energy Holdings Corp. |
Unknown |
 |
|
n/a |
Denver City Energy Associates, LP |
Undisclosed Seller |
Completed |
 |
|
n/a |
Devlan Exploration Inc. |
Undisclosed Seller |
Completed |
 |
|
23 |
Delphi Energy Corporation |
Undisclosed Seller |
Completed |
 |
02/01/2005 |
52 |
Delta Oil and Gas Inc. |
Undisclosed Seller |
Completed |
 |
02/07/2005 |
1 |
Distributed Power, Inc. |
Undisclosed Seller |
Unknown |
 |
|
n/a |
Delta Oil and Gas Inc. |
Undisclosed Seller |
Unknown |
 |
|
n/a |
DTE Energy Company |
Undisclosed Seller |
Completed |
 |
08/26/2005 |
n/a |
Deep Rock Oil & Gas, Inc. |
Undisclosed Seller |
Completed |
 |
11/02/2005 |
n/a |
Duke Energy Corporation |
Undisclosed Seller |
Completed |
 |
04/21/2010 |
n/a |
Direct Energy |
TransGlobe Energy Corporation |
Completed |
 |
|
57 |
Duke Energy Corporation |
Tierra Energy |
Completed |
 |
05/29/2007 |
n/a |
Darby Delaware Mezzanine Holdings LLC |
Termobarranquilla S.A. (TEBSA) |
Completed |
 |
|
n/a |
Delphi Energy Corporation |
Tercero Energy |
Completed |
 |
12/09/2004 |
56 |
Direct Energy |
Tenaska III Texas Partners Ltd |
Completed |
 |
02/01/2006 |
48 |
|