Statistics Canada says the economy contracted in February after showing strong growth in January.
The agency says gross domestic product pulled back 0.1% in February as both goods-producing and services-producing industries declined. Growth in January was 0.3%.
Economists had expected no change in gross domestic product for February, according to Thomson Reuters Eikon.
The mining, quarrying and oil and gas extraction sector fell 1.6% overall, with mining and quarrying down 4.4% and oil and gas extraction slipping 0.6%.
Transportation and warehousing fell 1.6%, due to a 10.8% drop in rail transportation as cold weather, heavy snowfalls and a derailment in B.C. that closed an important rail line through the Canadian Rockies hurt the sector.
The utilities sector gained 1.5% in February as cold temperatures contributed to higher demand for electric power generation, transmission and distribution and natural gas distribution.