You're short term goal is pretty specific, but you may want to frame it a little better and, as underscore said, fill in some of the why's. If I read "consulting or natural resources" as a short term goal, I'd want to know how those two fit together as a coherent story. Are there specific consulting firms you'd want to work for because they have significant presence in the natural resources industry? Do you want consulting to get some broad industry exposure that you could then use to bring outside best practices into the natural resources industry? Are there specific resources companies you'd want to work for because they have an awesome rotational program? etc.
In terms of 5-8 years out, I don't think anyone expects you to say, "I'm going to be the assistant product director for the X line of products at Y company. Talk a bit more broadly about where you want to be in your career. Do you want to be in a general management role in X industry? Do you want to be a factory manager? The mid-term goals should still have some specifics to show you've given it some thought, but doesn't have to be as specific as the short term goal. It does have to be a coherent next step in the story that builds on your MBA and experience you gain in your short term goal.
Once you get to long-term goal, it should focus much more on what sort of impact you expect to make over the course of your career than a specific job you want to hold. Do you want to help a company in X industry expand into new markets? Improve their product offering by doing A,B and C better? Here's an opportunity for you to tell a compelling story about how your past experience, MBA from X school, and expected post-MBA experience will turn you into the type of leader that will reflect well on the school. That said, nobody is going to come back 20 years from now to see if you're still pursuing that goal, so don't worry if you're not 100% set on it. Pick one potential future career path that you're most passionate about and run with it.