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Unfortunately for all the other teams on this list that could use Oswalt, there seems to be a clear front-runner for Oswalt's services, and that team appears to be the two-time defending American League champion Texas Rangers.
The Rangers presently sit in first place in the American League West, fives games in front of the Oakland A's, and the 3.66 ERA of their starting rotation is a very respectable fourth in the AL.
On the other hand, the elbow injury that landed Neftali Feliz on the disabled list may sideline him until the All-Star break (at least), leaving a hole in the rotation that many rival executives think the Rangers will plug with Oswalt, according to a tweet by ESPN's Buster Olney.
Full expectation among some rival execs is that Roy Oswalt will land with Texas, because of connection with Maddux, Ryan, proximity to Miss.
— Buster Olney (@Buster_ESPN) May 23, 2012
For his part, Rangers manager Ron Washington told ESPN Radio via ESPN Dallas that he would be "interested" in adding a healthy Oswalt, but the Texas skipper said "I think (GM) Jon Daniels and them will decide."