08/15/2013 05:00 EDT | Updated 10/15/2013 05:12 EDT

Warren Buffett Buys Stake In Calgary's Suncor

Warren Buffett, chairman and chief executive officer of Berkshire Hathaway Inc., listens while speaking to members of the media outside the Bridge Center in Omaha, Nebraska, U.S., on Thursday, May 2, 2013. Buffett said his eventual successor would probably be paid more than him to run the company. Photographer: Daniel Acker/Bloomberg via Getty Images
Warren Buffett has bought into the Alberta oilsands with a stake in Suncor Energy Inc., according to a Securities Exchange Commission filing released today.

Buffett’s Berkshire Hathaway Holdings owned 17.8 million Suncor shares on June 30, a stake valued at more than $500 million in the Calgary-based heavy-oil producer.

The same regulatory filing revealed Buffett made a larger investment in General Motors and added to its holdings in U.S. Bancorp and Wells Fargo & Co.

Suncor stock rose $1.18 cents to $34.97 in trading today.

Shares of companies often rise after Berkshire discloses sizeable new investments because investors try to copy Buffett, who has an enviable record as a successful investor.

Buffett, 82, is legendary for his ability to pick value stocks and apply common sense to the markets.

Buying into Suncor puts him into the midst of the debate over the rapid pace of oilsands production, which has been questioned by environmentalists as harmful to the environment, and over the Keystone pipeline which would take Alberta oil south to the U.S.

The company derives most of its current production from Alberta's oilsands and plans to expand there. It also owns several refineries to process its crude.

Analysts say Suncor isn’t waiting on a decision over controversial pipelines such as Keystone to transport its oil as it has booked pipeline and rail capacity for the next several years.

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