This 7.6%-yielding stock has generated humongous returns over the decades thanks to dividend growth.With a market capitalization of over $75 billion, Enbridge (ENB 0.94%) is the largest midstream energy company today. The oil and gas stock's dividend yield of 7.6% is also among the highest in the energy sector, and it's backed by a solid dividend track record.Canada-based Enbridge has increased its dividend every year for 29 consecutive years now, and grew its dividend at a compound annual growth rate of 10 ...