RedactedNarrative: The vessel's owner said that they had just finished fueling up his boat and he was inside the marina shop paying for his fuel purchase at the time when his boat caught fire. 
  
  Two friends were on board the vessel at the time of the explosion and fire. Friend1 said that when the vessel was done fueling he turned the ignition on and did not realize that the gas fumes had to be vented out before starting the vessel. By not venting the gas fumes, the vessel exploded and caught fire as soon as Friend1 turned on the ignition.  The friends were able to quickly get off the vessel without being injured. 
  
  The owner saw what had happened and ran down to his boat and used 2 of his fire extinguishers to try and put out the fire but was unsuccessful. The vessel was then untied from the dock so that it would not cause the gas pumps to catch fire and explode, and drifted across the lake to the east side where it rested against the shoreline. Niceville fire department arrived on their vessel shortly after Officer and I, and were successful at extinguishing the fire completely.