Enbridge (ENB -0.54%) earns about 16 billion Canadian dollars ($11.9 billion) each year. More than half of that income (57% in 2023) comes from its liquids pipelines business. The energy infrastructure company operates the longest and most-complex crude oil and liquids transportation system in the world. It handles 30% of all the oil produced in North America each year. Enbridge's liquids pipelines are crucial to supporting its big-time dividend (currently yielding 7.3%). But while oil is the company's main ...