Master limited partnerships, otherwise known as MLPs, are appealing for income investors. MLPs widely offer high distribution yields above 5%.Of course, investors should always do their due diligence to make sure the underlying distribution is secure. As a result, investors should seek a balance between yield and safety when it comes to MLPs.The following 3 master limited partnerships have high yields above 5% and can grow their distributions over time.Enterprise Products Partners (EPD)Source: Casimiro PT / ...