Stratford Industrial Track ownership

The CT State Rail map shows the CSX-served Stratford Industrial track as having American Premier Underwriters (a.k.a. Penn Central residuals) as its owner. Of all the former PC lines to hold on to, why did they bother keeping that one of all places instead of conveying to Conrail?

they own a lot, and CSX is not always in position to buy.
APU ownes the Harlem and Hudson line also, including the air rights

I wonder what else Penn Central's successors own? It says that they sold GCT and 156 miles of Metro North track for 80 million in 2007 to a real estate venture group. Other searches show they attempted to sue Amtrak and are a partial share holder in the company.

I'm surprised Stratford hasn't been abandoned south of I-95 past the last customer, Maine Plastics. The businesses along it on the other side of the highway have been overturned to such a degree that there's virtually no potential for ever developing new rail customers on it. And the tracks are in rough, rough shape between the Grainger parking lot and Route 113. But the whole thing is still showing active designation on the CT State Rail Map and CT State Rail Plan.