Ken Rosenthal says:
The Astros might finally be ready to move ace Roy Oswalt. While he does have a full no-trade clause, Oswalt has told the club in the past that he’d be willing to consider moves to St. Louis, both Chicago teams, Texas, and Atlanta.
things were different 3 months ago:
Oswalt “would invoke his no-trade clause if the White Sox attempted to acquire him.”
Maybe Oswalt spoke to Peavy.