Former employee here. Sad to see how bad things have gotten. I’m skeptical about ExxonMobil’s business prospects, but now isn’t the time to leave to other Energy companies. You won’t find many companies that can offer you similar pay and benefits (most of your experience has little value). Put in hard work, perform well, learn on the side and then look for the exit.
Most importantly you shouldn’t lose hope. It’s still a decent company, and I do believe they’ll conduct another more high profile rationalization. You all can rejoice when 20-30% of non-worker bees are axed within the next year.