The impact of the oil-price collapse is increasingly seeping into other areas of the Canadian economy, as insurers, telecommunications companies and even liquor retailers signal the energy sector’s pain is spreading. While production from the oil sands continues to flow, the lack of investment is lowering demand for labor and services, which is seeping into other industries and contributing to the economic drag that led a contraction in Canadian growth in the first half of the year. Showing the spillover effects, Vancouver-based wireless provider Telus Corp. TU -1.73 % announced last week it would lay off 1,500 employees across the country, mainly due to “stress” in Alberta. Toronto-based Redline Communications Group Inc., RDLCF -4.02 % a maker of networking equipment, attributed a 30% drop in its third-quarter revenue to “ongoing low oil prices and subsequent delays in purchasing.” “From 2002 to 2008, oil prices were going up, the Canadian […]