In the latest trading session, Sunoco LP (SUN) closed at $58.53, marking a +1.19% move from the previous day. This change outpaced the S&P 500's 0.64% gain on the day. At the same time, the Dow added 1.85%, and the tech-heavy Nasdaq gained 0.2%.Heading into today, shares of the master limited partnership had gained 5.86% over the past month, outpacing the Oils-Energy sector's loss of 8% and the S&P 500's gain of 3.82% in that time.Analysts and investors alike will be keeping a close eye on the performance o ...