As institutional investors grow increasingly picky in where they put their money amid the global Environmental, Social, and Governance (ESG) push, North America's oil sector has started to look at ways to attract those investors who have been shunning fossil fuels by default. In recent weeks, two Canadian firms became the first North American oil companies to link their credit facilities to sustainability targets, willingly signing up for potentially higher borrowing costs if they miss those targets. The sustainability-linked loans…