In 38 years in upstream, I had 28 direct supervisors. Only one was truly awful (but brilliant) and she became a VP in Chemicals. Of the remaining 27, 1 became CEO, 1 became Pres of production, 7 became VP or EVP. Most of rest were solidly in the middle and became lower level executives. 5 of these 28 were women, which is pretty good if you consider less than 10% of engineering grads were women when I hired on. .All of the my female supv were much younger than me and moved up rapidly (I have no complaints about my female supervisors other than one mentioned above. ) All but 3 made it retirement. of the 3 who resigned, one became a VP in BP, 2 others got rich as independent producers.