Complex sentence: The E-L in turn operated the Cut-Off until 1976 when the railroad was conveyed into Conrail, which ran trains until 1979, abandoned the line in 1982, and removed the tracks in 1984.
Split into simpler sentences: The E-L in turn operated the Cut-Off until 1976 when the railroad was conveyed into Conrail. The Cut-Off was operated under Conrail until 1979 when the line was embargoed; the Cut-Off was abandoned in 1982 and Conrail removed the tracks in 1984.