Really fun game you developed here! I was completely engaged during my ~20 minute playthrough. Great buildup of economy over the course of the game, gave me some cookie clicker nostalgia for sure. I can't really think of much in the way of criticism except that the refueling mechanic maybe isn't necessary aside from slowing down the super early game. Anyway, great entry.
Here's my gameplay video playtest if you're interested in some more in-depth feedback!