You can read the whole Executive Order for yourself Here.
In short, the 'National Defense Resources Preparedness' order gives the Executive Branch the power to control and allocate energy, production, transportation, food, and even water resources by decree under the auspices of national defense and national security. The order is not limited to wartime implementation, as one of the order's functions includes the command and control of resources in peacetime determinations.
Section 101. Purpose. This order delegates authorities and addresses national defense resource policies and programs under the Defense Production Act of 1950, as amended (the "Act").
(b) assess on an ongoing basis the capability of the domestic industrial and technological base to satisfy requirements in peacetime and times of national emergency, specifically evaluating the availability of the most critical resource and production sources, including subcontractors and suppliers, materials, skilled labor, and professional and technical personnel;"Executive Orders created for national defense and national preparedness are not new in American history, but in each instance they brought about a Constitutional crisis that nearly led standing Presidents to hold dictatorial power over the citizenry......"
"The Obama administration appears to be preparing for a long drawn out war in the Middle East, or at the very least, an expected crisis that will require the need to override Constitutional authority and claim dominion over all resources in the United States under the guise of national security...." - The Examiner
.......like violent OWS uprisings in major cities this summer that raise fears that could very well cost him the White House?