The Defense Department said $19,805,300 modification falls under a previously-awarded low rate initial production contract.
Studies for the Norway Ministry of Defense will consist of physical fit checks, wind tunnel tests and engineering analysis.
Lockheed will also build an emulator and adapter in preparation integrating the Joint Strike Missile into to the plane.
Seventy percent of work will occur in Fort Worth, Texas, and the rest will occur at Arnold Air Force Base in Tullahoma, Tenn. and in Kongsberg, Norway.
The study is expected to complete by May 2014 and the the Naval Air Systems Command in Patuxent River, Md. is the contracting activity.
Norway could buy 52 more F-35 jets after previously planning to buy 48.