I work in the construction sales industry. Let me give you a word of advice HOUSTON IS A SELLERS MARKET! If you want to sell your house the average time on the market, per the Houston Business Journal, is 2 weeks MAX. Now, the flip side of that is you might want to put a contingent on the sale that if you can't find a house to buy then the deal is off. Gas prices have ZERO effect on the housing industry. The housing market in our city is driven mainly by one thing, demand. There is only a back log of 3 month supply of new homes on the market. Therefore, if you have a house in an established, no new houses being put up around you, and someone wants to buy that house, they have to buy your house.
This isn't 1980 man. Actually, if you look at the trade deficit/surplus this will be the first year that the U.S, in a very long time, will be at a trade surplus due to our exportation of natural gas to China and other countries. Fracking has helped with this as well.
So no man, do not in any way determine whether to sell your house or not by the price per barrel of oil. U.S., despite Obama (well Texas at least) is trying to become more dependent on natural gas, and not crude oil.
Now, I will say this, if you see the sub-prime go to zero and no down payment hold on to your hats! That is when the writing is on the wall and banks are lending to anyone with a heartbeat! This is when you will see notes getting called and builders such as David Powers, Wilshire Homes, and the like dry up like a raising because they pulled an Enron.