By Rhiannon Meyers
The four-star business lunches are disappearing. Upscale apartments that once were filling fast now are offering free-rent specials. Factories that ran around-the-clock to produce oil hardware are slashing shifts or shutting down entirely. The hard-luck jobless lining up for career counseling include the suit-and-tie engineers, geologists and energy executives who once earned six-figure (or higher) salaries.