I am currently working in an oil and gas service company as a field engineer. It's been 2 years already and next year I'm planning to get my master degree. I took geology engineering for my bachelor degree and I'm thinking about taking an MBA or MSc focused in energy management. I want to work in office, 3 year working on field is enough for me. Is that okay if a field engineer like me trying to pursue an MBA? because I don't have a lot of managerial experiences. Is 3 year experience enough if I want to take an MBA program? any recommended university to go? Is there an energy management MBA/MSc program in Ivy league universities? I prefer US or UK. Thank you.