Master limited partnership investors know that Enterprise Products Partners (EPD 0.47%) is one of the best-run partnerships out there; its solid fundamentals and excellent distribution history make it a perennial favorite.

Unbeknownst to many, HollyFrontier's (HFC) MLP, Holly Energy Partners (HEP), shares many of the same characteristics as Enterprise. Why, then, has the stock posted lackluster returns while Enterprise continues to soar? In this video, Fool.com contributor Aimee Duffy takes a look at the Holly Energy Partners story.