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Obsidian Energy

https://obsidianenergy.com/
Obsidian Energy Ltd. (previously known as Penn West Exploration Ltd., Penn West Petroleum and Penn West Energy Trust) is a mid-sized Canadian oil and natural gas production company based in Calgary, Alberta.
For a while it was one of the S&P/TSX 60, the sixty largest companies on the Toronto Stock Exchange. From 2005–2011 it was a Canadian royalty trust (CANROY), and reached a peak market capitalization in January 2008 of approximately US $9.5 billion.
Category
Energy
Listed
Nov 8, 2026
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