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Home > Industry Data > 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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51-75 of 3147 items listed First Previous Next Last
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Seller Status Date
Williams Partners L.P. Williams Companies, Inc Completed 750
Williams Partners L.P. Cabot Oil & Gas Corporation Completed 12/21/2010 150
Williams Partners L.P. Williams Pipe Line Completed n/a
Williams Gas Pipeline Company Columbia Energy Group Completed 07/01/2000 150
Williams Energy Partners L.P. Midwestern Aux Sable Completed 01/02/2002 9
Williams Energy Partners L.P. Williams Pipe Line Completed 04/11/2002 1,000
Williams Companies, Inc Barrett Resources Corporation Completed 08/03/2001 2,500
Williams Companies, Inc Duke Energy Field Services, LLC Completed n/a
Williams Companies, Inc TransCanada Pipelines Ltd. Completed 03/19/2001 n/a
Williams Companies, Inc Aspect Abundant Shale LP Unknown 166
Williams Companies, Inc SandRidge Energy Completed 285
Williams Companies, Inc Undisclosed Seller Completed 258
WildHorse Resources, LLC Clayton Williams Energy, Inc. Completed 04/01/2010 77
WICOR, Inc. Lurmark Ltd Completed 01/07/2000 n/a
WICOR, Inc. Precision Fitting & Valve Co. Completed 01/07/2000 n/a
Whittier Energy Corporation Undisclosed Seller Completed 8
Whiting Petroleum Corporation Chicago Energy Associates, LLC Completed 365
Whiting Petroleum Corporation Undisclosed Seller Completed 03/31/2005 65
Whiting Petroleum Corporation Undisclosed Seller Completed 01/18/2005 19
Whiting Petroleum Corporation Celero Energy, LP Completed 07/01/2005 802
Wheelabrator Technologies Inc Southeastern Public Serv Auth Completed 04/29/2010 150
Wexford Capital LLC American Electric Power Company, Inc. (AEP) Completed 04/16/2004 n/a
Westport Resources Corp. Belco Oil & Gas Corp. Unknown 992
Westmoreland Coal Company Knife River Corporation Completed n/a
Westinghouse Electric Company ABB Completed 05/05/2021 n/a
51-75 of 3147 items listed First Previous Next Last
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