On average, there have been two crude oil spills every day in Alberta for the past 37 years. Our series examines spills in Alberta: where they are, and what's being done about them.

The Alberta Energy Regulator has laid five charges against Nexen Energy for a pipeline spill in July 2015 that was one of the largest in provincial history.

Federal agencies are responding to an oil spill at an Enbridge Inc. storage site that contaminated a creek in an area east of Edmonton.

A researcher is questioning how well Alberta's oil spills are tracked and how well they're cleaned up.

An oil spill on a Saskatchewan First Nation is highlighting problems with pipeline leak detection systems.

Human error — whether it's burying a pipeline too shallow or not fastening bolts tight enough— is increasingly a factor contributing to pipeline leaks, federal data suggests.

Five years after Alberta raised a record-setting $3.5 billion at auctions of provincially owned oil and gas drilling rights, sales are on pace this year to set a historic low.

Canada's oil and gas sector is on track to have the biggest two-year decline in capital spending in its history.

The municipality has a shortage of trained mechanics to work on its fleet of buses and is hoping to find those mechanics in Alberta.

Oil covered a 300-square-foot area in a farm field ditch four miles from a Freeman-area pump station, about 40 miles southwest of Sioux Falls. TransCanada hasn't released the amount of oil.