The company said Thursday afternoon via its Twitter account that a technical halt has been declared on the TSX, TSXV and TSX Alpha exchanges.

Analysts say they don't expect an immediate jump in gasoline pump prices, but it could happen if tensions remain heightened.

Shares in Aurora Cannabis Inc. continued to fall on Tuesday as the company confirmed that it asked key executive Cam Battley late last week to step down as chief corporate officer.

Shares of Canopy Growth Corp. got a lift after the cannabis producer named Klein — chief financial officer at Constellation Brands, Canopy's largest shareholder — as its new CEO.

Shares in Kirkland Lake Gold Ltd. closed down 17 per cent or $10.94 at $52.38 on Monday after it announced an acquisition deal that it said valued smaller Canadian rival Detour Gold Corp. at $4.9 billion.

The company behind brands like Corona beer announced a deal in August of last year to invest $5 billion in Canopy Growth to secure a 38 per cent ownership of the company.

Revenue for Saskatoon-based Cameco came in at $303 million, down from $488 million a year earlier.

Higher oil prices spurred by an attack on Saudi Arabian oil facilities boosted the Canadian energy sector on Monday but are expected to result in higher fuel prices for consumers.

Shares of Aurora Cannabis tumbled by nearly nine per cent after the pot producer's fourth-quarter revenues fell short of its own guidance and signalled a longer pathway to profitability, pointing to the slow rollout of brick-and-mortar retail cannabis stores.

SNC-Lavalin Group Inc.'s stock fell again after Standard & Poor's downgraded its credit rating to junk status.