Kearl mine

When the Alberta Energy Regulator (AER) announced Imperial Oil had to pay a $50,000 administrative penalty, it said this was the maximum base amount allowed under the Environmental Protection and Enhancement Act. This is "absolutely not" accurate, according to experts.

The Alberta Energy Regulator has warned Imperial Oil about more wastewater problems at its Kearl oilsands mine in northern Alberta.

The Alberta Energy Regulator says it is investigating after Suncor reported the discovery of dozens of dead birds at an oilsands tailings pond.

Alberta's energy regulator has confirmed hazardous chemicals are present in a small waterbody after two releases of tailings-contaminated wastewater from Imperial Oil's Kearl oilsands mine.

The Alberta government waited a month before calling an emergency response to one of the biggest releases of oilsands tailings in the province's history, a leaked document shows.

Alberta's information commissioner has started an investigation into how the province's energy regulator notified the public about tailings pond releases at Imperial Oil's Kearl mine.

Premier Danielle Smith says laggardly public notification of Imperial Oil oilsands wastewater spills has illuminated the need for Alberta to ensure future alarms are sounded quicker.

Federal Environment Minister Steven Guilbeault has repeated his call for a stronger federal presence when it comes to environmental monitoring and communications in the oilsands, following a pair of wastewater releases from Imperial Oil's Kearl mine in Alberta.

The Alberta and federal governments say they will work together to understand what happened around a nine-month delay in notifying the public about toxic seepage from an oilsands tailings pond.

Recent leaks of toxic tailings from northern Alberta oilsands mines have revealed serious flaws in how Canada and Alberta look after the environment, observers say.

Alberta's nine-month silence over two releases of toxic oilsands tailings water is "worrisome," says federal Environment Minister Steven Guilbeault.

A second outbreak of COVID-19 at an oilsands mine work camp in northern Alberta is concerning, observers say, but not even a vocal critic of the Alberta government's handling of the pandemic would shut those operations down.

The two companies announced their first-quarter financial results before their annual shareholder meetings in Calgary.