Honda 2000i where will oil go if i flip it over?

I have tipped over my 2000i to get the last bit of fuel out before adding fresh fuel before storage and have never had oil run out of the engine or cause a problem internally. I just fill the fuel tank, add Sea Form, fire up the engine to run the fresh fuel through the system and carb. and then shut it down and store it. Ready to go when I need it next time it is needed. Not a big deal. And we have ethanol around here-still not an issue. The generator is 10 years old w/o any fuel issues.