These are the candidates. From the left (no, not THAT left, silly, this IS Texas, after all): Bill White, mayor of Houston, Democrat; Rick Perry, Governor of Texas, Republican; Kathie Glass, Libertarian candidate; and Deb Shafto, the Green Party candidate.
The democrats sought to block the Green Party from this election because they are funded by Republicans, in hopes they will drain off Democratic votes. Where the Libertarians get their money, I do not know, though we can speculate, can't we?
In my ongoing quest to find suitable third party candidates, I have chosen Deb Shafto. If that derails Bill White's governorship, so be it. He blew it in my view when he bungled the Hurricane Rita evacuation, by not opening the contra lanes in a reasonable length of time, thereby causing misery and in a few cases, death, to occur on the highways leading away from the Galveston Bay area and Houston. Take that, Bill!