Could you explain Evergreen’s exact relationship with the refinery?

Evergreen is an affiliate of Sunoco (R&M), LLC (formally known as Sunoco, Inc. (R&M), a former operator of the refinery), and both companies are indirect subsidiaries of Energy Transfer L.P.  In November 2013, Evergreen was formed to manage Sunoco’s legacy environmental cleanup at the Philadelphia Refinery. By legacy, we mean that Sunoco retained responsibility for remediating the subsurface conditions at the refinery that existed on Sept. 8, 2012, when the property was transferred to Philadelphia Energy Solutions.