The pilot reported that he was distracted with some paperwork during the flight and “failed to switch tanks” at the halfway point as he had initially planned. Further, the pilot experienced high workload during the descent due to weather reports and other traffic, and he did not use the descent checklist, which included a task to “manage fuel.” Post-accident examination of the fuel system revealed that about 22 gallons of fuel remained in the left fuel tank and that there was no fuel in the right fuel tank. The pilot reported no mechanical failures or malfunctions with the engine that would have precluded normal operation. Further examination of the airplane revealed no anomalies to the landing gear extension and locking mechanisms. According to the airplane manufacturer, the landing gear hydraulic pump is powered by the engine; therefore, it is likely that the landing gear failed to deploy as a result of the power loss.