The Hill News

A vast majority of the likely GOP field for 2012 will speak at the fifth annual Values Voters Summit in September, according to a list released by the organization.

The roster includes formers Govs. Mitt Romney (Mass.) and Mike Huckabee (Ark.), along with former Sen. Rick Santorum (Pa.) and Rep. Mike Pence (Ind.).

Two other rumored candidates â€" former Alaska Gov. Sarah Palin and Sen. John Thune (S.D.) â€" are marked as unconfirmed.

Notably missing are former House Speaker Newt Gingrich (Ga.) and current Minnesota Gov. Tim Pawlenty, who are also considered likely contenders for the nomination.

The conference, organized for conservative activists, will take place in Washington from Sept. 17-19.