...Brian Hewitt of The Golf Channel reporting that Geoff Ogilvy did not qualify for the U.S. Open, and I remember noticing in Golfweek's initial sectional reporting that he was listed there as well. Hewitt:
The names of the players who didn’t survive Sectional play are almost as fascinating as the list of the players who did:
Jason Gore, who captured our hearts at Pinehurst in last year’s Open. Brad Faxon. Geoff Ogilvy. Aaron Baddeley. Jesper Parnevik. Trevor Immelman. Peter Lonard.
Since they both made the mistake I'm guessing Ogilvy may have been listed as a WD or DNS in a sectional that he may have entered long ago? (Same deal with Darren Clarke, who was listed as a WD even though he's in easily based on his world ranking.)
Anyway, Ogilvy is most definitely in because of his world ranking status, as this USGA press release said in May.