Obsidian Energy (English Wikipedia)

Bankes, Nigel (1997). "Compulsory Pooling under the Oil and Gas Conservation Act of Alberta (OGCA)". Alberta Law Review. XXXV (4): 945–1012. doi:10.29173/alr1039. Retrieved January 4, 2019. Under the 1957 Oil and Gas Conservation Act of Alberta (OGCA), compulsory pooling defines a Drilling Spacing Unit (DSU) in regards to licensing and production of an oil well.

canadian-accountant.com (Global: low place; English: low place)

"U.S. judge denies former Penn West accountants' bid to dismiss SEC charges". Canadian Accountant.

cbc.ca (Global: 115^th place; English: 82^nd place)

"Penn West swallows Canetic in $3.6B deal". CBC News. 2007-10-31. Retrieved 2019-01-04.
"Penn West to restate results after accounting irregularities Calgary oil company worth $5 billion will restate 4 years worth of results". CBC News. 30 July 2014. Retrieved 2 September 2015.
Bakx, Kyle (May 13, 2015). "Lawsuits the latest challenge for Penn West Calgary-based energy company facing litigation on both sides of the border". CBC News. Retrieved September 2, 2015.
Canadian Press (September 2, 2015). "Penn West Petroleum, ConocoPhillips Canada slash hundreds of jobs Most of the 900 job losses between the 2 companies will be from Calgary offices". CBC News. Retrieved 2 September 2015.

cbr.ca (Global: low place; English: low place)

"Penn West Exploration (Penn West Petroleum Ltd.)". Canadian Business Resource (CBR). Company Listing. Archived from the original on July 21, 2013. Retrieved January 4, 2019.

dividenddetective.com (Global: low place; English: low place)

Domash, Harry (2011), Canadian Energy: Exploration & Production, Dividend Detective, retrieved December 23, 2014

doi.org (Global: 2^nd place; English: 2^nd place)

Bankes, Nigel (1997). "Compulsory Pooling under the Oil and Gas Conservation Act of Alberta (OGCA)". Alberta Law Review. XXXV (4): 945–1012. doi:10.29173/alr1039. Retrieved January 4, 2019. Under the 1957 Oil and Gas Conservation Act of Alberta (OGCA), compulsory pooling defines a Drilling Spacing Unit (DSU) in regards to licensing and production of an oil well.

financialpost.com (Global: 3,491^st place; English: 1,999^th place)

business.financialpost.com

Canadian Press (September 18, 2014). "'No impact on our strategic direction': Penn West to review results dating back to 2007". Financial Post. Retrieved January 4, 2019.

forbes.com (Global: 54^th place; English: 48^th place)

"Forbes Global 2000". Forbes. Retrieved 31 October 2020.

google.ca (Global: 838^th place; English: 2,630^th place)

"Penn West Petroleum Ltd (TSE:PWT)", Google Finance, 23 December 2014, archived from the original on 23 December 2014, retrieved 23 December 2014

newswire.ca (Global: 2,726^th place; English: 1,608^th place)

"Penn West Changes Name to Obsidian Energy Ltd. and Announces Voting Results from the 2017 Annual and Special Meeting of Shareholders". News Wire. Calgary. June 26, 2017. Retrieved January 4, 2019.

nytimes.com (Global: 7^th place; English: 7^th place)

Alex Tarquinio (October 17, 2004). "Royalty Trusts: Not an Oil Baron? You Can Still Get Oil Royalties". New York Times. Retrieved January 4, 2019.

pennwest.com (Global: low place; English: low place)

"Penn West Corporate Fact Sheet", Penn West, 2014, archived from the original on 23 December 2014, retrieved 23 December 2014

s3-ca-central-1.amazonaws.com (Global: low place; English: low place)

"Analyst Day Presentation 2017" (PDF). Retrieved 2017-06-07.

seekingalpha.com (Global: 5,344^th place; English: 3,420^th place)

"WCS Vs. WTI: Canadian Heavy Crude Discount Demystified". Seeking Alpha. Investments Cornerstone. January 4, 2018. Retrieved January 4, 2019.

theglobeandmail.com (Global: 293^rd place; English: 203^rd place)

Tait, Carrie; Jones, Jeffrey (August 1, 2014). "The Penn West saga: Tom Budd, Rick George and a drama in the making". The Globe and Mail. Retrieved January 4, 2019.

thestar.com (Global: 336^th place; English: 216^th place)

Weber, Bob (March 30, 2023). "Regulator defends finding that Alberta's largest earthquake was caused by oilpatch". The Star. Edmonton, Alberta. Retrieved March 30, 2023.

web.archive.org (Global: 1^st place; English: 1^st place)

"Penn West Petroleum Ltd (TSE:PWT)", Google Finance, 23 December 2014, archived from the original on 23 December 2014, retrieved 23 December 2014
"Penn West Exploration (Penn West Petroleum Ltd.)". Canadian Business Resource (CBR). Company Listing. Archived from the original on July 21, 2013. Retrieved January 4, 2019.
"Penn West Corporate Fact Sheet", Penn West, 2014, archived from the original on 23 December 2014, retrieved 23 December 2014

Obsidian Energy (English Wikipedia)

albertalawreview.com (Global: low place; English: low place)

canadian-accountant.com (Global: low place; English: low place)

cbc.ca (Global: 115th place; English: 82nd place)

cbr.ca (Global: low place; English: low place)

dividenddetective.com (Global: low place; English: low place)

doi.org (Global: 2nd place; English: 2nd place)

financialpost.com (Global: 3,491st place; English: 1,999th place)

business.financialpost.com

forbes.com (Global: 54th place; English: 48th place)

google.ca (Global: 838th place; English: 2,630th place)

newswire.ca (Global: 2,726th place; English: 1,608th place)

nytimes.com (Global: 7th place; English: 7th place)

pennwest.com (Global: low place; English: low place)

s3-ca-central-1.amazonaws.com (Global: low place; English: low place)

seekingalpha.com (Global: 5,344th place; English: 3,420th place)

theglobeandmail.com (Global: 293rd place; English: 203rd place)

thestar.com (Global: 336th place; English: 216th place)

web.archive.org (Global: 1st place; English: 1st place)

cbc.ca (Global: 115^th place; English: 82^nd place)

doi.org (Global: 2^nd place; English: 2^nd place)

financialpost.com (Global: 3,491^st place; English: 1,999^th place)

forbes.com (Global: 54^th place; English: 48^th place)

google.ca (Global: 838^th place; English: 2,630^th place)

newswire.ca (Global: 2,726^th place; English: 1,608^th place)

nytimes.com (Global: 7^th place; English: 7^th place)

seekingalpha.com (Global: 5,344^th place; English: 3,420^th place)

theglobeandmail.com (Global: 293^rd place; English: 203^rd place)

thestar.com (Global: 336^th place; English: 216^th place)

web.archive.org (Global: 1^st place; English: 1^st place)