Despite oil prices surging more than 9 percent in one week, the Dow closed up just over one-half point at 12,130.45.  Skyline Corp finished up 8.61 percent, and Cavco gained 2.97 percent.  Nobility dropped .25 percent, and Deer Valley lost 32.69 percent.  The Manufactured Housing Composite gained 3.25 percent to close at 1135.9.