Preheat oven to 400°F (204°C). Using a chef knife or carving knife cut off the ended of the pumpkin and stand it up. This gives it some leverage for balance.
Cut down the middle and scoop out the seeds. Distribute oil evenly amongst the inside of both halves. Brush the inside and outside with oil.
Place cut side down onto parchment paper-lined baking sheet pan, insert into oven and bake for one hour. Fork should easily insert into skin once done.
Remove from oven and let cool for 15 minutes before removing the core from its skin.
