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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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1-25 of 57 items listed First Previous Next Last
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Purchaser Seller     
Ormat Industries Constellation Energy Group, Inc. Unknown 73
Occidental Petroleum Corporation Plains All American Pipeline, L.P. Unknown n/a
Origin Energy Contact Energy Unknown 750
Occidental Petroleum Corporation Dolphin Energy Limited (DEL) Unknown n/a
Oil and Natural Gas Corp's (ONGC) Talisman Energy Inc. Unknown n/a
Occidental Petroleum Corporation Phibro Inc. Unknown 250
OPUS Communities, Inc. Brazos Resources Inc. Unknown n/a
OMDA Oil and Gas, Inc. Undisclosed Seller Unknown n/a
Oil & Natural Gas Corp. Imperial Energy PLC Unknown 2,600
Onyx Renewable Partners L.P. SunEdison Pending n/a
Oglethorpe Power Corporation Effingham County Power Pending n/a
ONEOK, Inc. Oneok Partners, L.P. Pending n/a
Orsted Lincoln Clean Energy Pending 580
Orsted Deepwater Wind LLC Pending 510
Oncor Electric Delivery Company InfraREIT, Inc. Pending 1,275
ONEOK, Inc. Southwest Gas Corporation Failed 1,800
Oregon Electric Utility Company Portland General Electric Company Failed 2,350
Ormat Industries Constellation Energy Group, Inc. Completed 71
Oglethorpe Power Corp. Hartwell Energy LP Completed 10/13/2009 149
Ormat Industries International Power Plc Completed n/a
ONEOK, Inc. Koch Industries Completed 07/01/2005 1,350
OMV UK Limited Conoco Inc. Completed 07/14/2011 28
Ormat Industries Steamboat Development Corp Completed 05/23/2004 20
Orion Power Holdings, Inc. Duquesne Light Holdings, Inc. Completed 1,700
Ohio Edison Company Centerior Energy Completed 11/07/1997 1,600
1-25 of 57 items listed First Previous Next Last
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