Photo courtesy GHCVBA Houston without an oil industry? Why, that's like Dallas without assholes.But it could happen, according to speakers at a panel here today. (The Houston part, not the Dallas part.)The RMI Oilfield Breakfast Forum featured dire warnings that Obama's tax policies might encourage oil companies to locate in friendlier countries than the U.S., thus leaving Houston with a lot of empty skyscrapers.PennEnergy reports that one speaker, Jim Wicklund, principal and energy por