Enbridge (ENB -0.97%) has been an exceptional investment over the decades. The Canadian pipeline and utility operator has delivered more than an 11% compound annual total return over the past 20 years. That has outpaced the S&P 500 and its nearly 10% annualized total return, and its peers in the utilities and midstream sectors, with about 8% average annual total returns. The energy infrastructure company could produce even higher total returns in the coming years. One factor fueling that view is its ability ...