Back in 1971 we had a gas stove that had no electric connected to it. There were 2 pilot lights for the top burners and a pilot light for the oven. It was a very cheap unit. The stove we have now has an electrical lighter for the oven as Woodtroll mentioned.
Correct, the top burner valves will pass gas with no electricity, so they can be used if the power is out but will need to be manually lit. The burner in the oven will not pass any gas at all without electricity and won't work even if you hold a match at the burner (unless it's a commercial oven or a very, very old residential oven with a pilot light, which I'm betting against in your rental property).
