This isn't about age discrimination or anything like that. This is about common sense. From what I've seen personally and from the majority of the posts here, most of the people who have been laid off are experienced workers who have been with Exxon for a decade or two (and in some cases more.)
Where is the business logic there?
Yes, this saves the company money in the short run. But what happens in the long run? When they realize that they need several people to do the same job somebody was doing on their own because she or he knew that job inside out and knew how to do it efficiently? Do they have any idea how much that's going to end up costing the company?