The year-to-date rise of Phillips 66 Partners (NYSE:PSXP) and Valero Energy Partners (NYSE:VLP) has been impressive to say the least. While the S&P Index is up less than 7%, and the Alerian Index is up less than 13%, the aforementioned master limited partnerships have climbed 106% and 54%, respectively.

Is all that glitters gold? Maybe not. For one thing, these MLPs both hit the market with very low yields, and despite a hefty distribution increase at Phillips 66 Partners, the unit price appreciation has driven its yield to a level that is not at all common for MLPs. Given the respective corporate sponsorship of Phillips 66 (NYSE:PSX) and Valero (NYSE:VLO), could a compelling growth story entice investors anyway? The slideshow below pits these two MLPs head-to-head to find out.

Aimee Duffy has no position in any stocks mentioned. The Motley Fool has no position in any of the stocks mentioned. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.