Unless you are already indepenently wealthy, if there is a gas play at any stage of progression, and you own the minerals, smart financial thinking should tell you to retain them. Most people looking to buy a home do not have owning the minerals high on their priority list. There is an entire industry of those who research to find out what properties in a play area have conveyable minerals. These properties are purchased and resold with minerals retained. If a prospective buyer is determined to procure minerals with purchase, it should be highly considered and reflected in the sales price, you could be conveying a lottery ticket.
With current alternative energy source offerings as weak as they are, it's only a matter of the right political administration coming to power to turbo-charge a strong available energy industry which will, in turn, turbo- charge your financial standing.