Thanks for your post. Overall you have a solid profile, with a strong GMAT (above the average at all top programs); solid engineering work experience; acceptable academics; thought-out goals. I would say you wouldn't be ruled OUT from consideration at the schools you mentioned, but so far it's tough to discern much that helps you stand out and be remembered either, especially in a growing pool of engineering applicants applying to b-school. So don't underestimate the importance of those essays to help show who you are as a person and what you'll bring to the class. HBS will always be a challenge; followed by Booth & Sloan; and your odds may be greater at Duke. Not sure if you've looked into Haas; and then of course Rice, McCombs and other Texas schools are well known in the energy sector.
Good luck & happy new year!
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