I think you will spend 16 seconds reading this post
After the Spectator list about who is in the In camp, who wants the UK to leave, and who is undecided in the Conservative party, the Guardian has a list about all 650 MPs, which it is updating regularly.
The list is available at: http://www.theguardian.com/politics/ng-interactive/2016/feb/23/how-will-your-mp-vote-in-the-eu-referendum?CMP=fb_gu
