The Globe and Mail reports in its Saturday, July 18, edition that last Thursday CNOOC-owned Nexen said a pipeline ruptured at its Long Lake oil sands project, spewing about 31,500 barrels of bitumen across a 16,000-square-metre area. The Globe's Jeff Lewis, Jeffrey Jones and Renata D'Aliesio write that the oil spill has raised concerns over pipeline safety as Canada's premiers seek consensus on plans to pipe oil sands crude to Eastern ports. The Nexen spill is nearly 60-per-cent larger than a 2010 break on an Enbridge pipeline that leaked more than 20,000 barrels of crude into Michigan's Kalamazoo River. The Globe says the Nexen spill magnifies sharp disagreements over the scope and direction of a Canadian energy strategy unveiled by Canada's premiers on Friday. The framework was hailed by Alberta Premier Rachel Notley as a "meeting of minds" that highlights the energy industry's importance to the country. Pembina Institute analyst Erin Flanagan says the deal does nothing for the environment. Mr. Flanagan points to an absence of firm commitments to cut greenhouse gas emissions as a glaring omission, as well as the threat of pipeline ruptures as reminders of the industry's risks.