This is the list (one of 2 by 2 different posters) in the comments for the Washington Times article (via Drudge)
Alexander (R-TN)
Ayotte (R-NH)
Barrasso (R-WY)
Blunt (R-MO)
Boozman (R-AR)
Burr (R-NC)
Chambliss (R-GA)
Chiesa (R-NJ)
Coats (R-IN)
Coburn (R-OK)
Cochran (R-MS)
Collins (R-ME)
Corker (R-TN)
Cornyn (R-TX)
Graham (R-SC)
Hoeven (R-ND)
Isakson (R-GA)
Johanns (R-NE)
Johnson (R-WI)
McCain (R-AZ)
McConnell (R-KY)
Murkowski (R-AK)
Thune (R-SD)
Wicker (R-MS)
Link to the article (see comments)
Add Flake and Hatch. A non-vote is the same as a No vote.