A funny thing happened to the oil and gas industry as it lay flat on the mat after the collapse of oil prices about four years ago.
It figured out how to get up and start investing for the future again.
While scores of exploration and production companies went bankrupt and more than 200,000 American energy industry workers lost their jobs, some resourceful producers figured out how to slash costs and boost efficiency. Upstream, midstream and downstream, they adopted new technologies that enabled them to cope with much lower-priced oil.
