Hey
caroulemapoule,
Congratulations on being accepted to two amazing b-schools! I know that this year was a super competitive year for many schools, so I hope that has you feeling proud!
I wanted to piggy-back off of a lot what folks above me have posted: definitely attend welcome weekend! Have you had the opportunity to visit campus at both schools? My experience has been that they're fairly different - though each could work for different people.
The other thought I have, because you're going into a very specific industry sector, is to look at opportunities to study at other parts in the universities. I'm not sure if Booth/Chicago allows this, but at SOM, you can take as many classes as you'd like at the Forestry School which has a significant number of energy electives.
If you'd like to chat about student life at SOM with a current student, I'd be happy to jump on a call. PM me and we can set something up!