Complex sentence: In September 2005, Fogerty returned to Fantasy Records, made possible when DreamWorks Records' non-country-music unit was absorbed by Geffen Records, which dropped Fogerty but continued to distribute his earlier solo albums.
Split into simpler sentences: In September 2005, Fogerty returned to Fantasy Records. That was made possible when DreamWorks Records' non-country music unit was absorbed by Geffen Records, which dropped Fogerty but continued to distribute his earlier solo albums.