Hi ShreyaPatel11,
Congrats on starting at the Duke MS program this fall! Your work background also is differentiated for business schools because oil and gas is a not traditionally a big feeder industry to MBA programs. So that's good news - as long as you can articulate why you are seeking an MBA, and how it will help you achieve your future career goals. You also have strong academics (GPA and GRE).
As for how many years of work experience you should have before you apply for the top MBA programs, there's not a specific number. Most applicants apply when they have anywhere between 3 to 6 years of full-time work experience post-undergraduate. So you should be right in the sweet spot when you've graduated from your MS program.
If you would like to discuss your profile in more detail, feel free to schedule a 1:1 consultation with us. Wishing you the best in your MBA journey!
Sincerely,
Debbie