For several years, the oil and gas industry has experienced a drain of experienced personnel, creating a gap between very experienced people and lower-level resources. Reimagining business for the digital age is the number-one priority for many of today's top executives. We offer practical advice and examples of how to do it right. "This demographic issue has affected the industry, since the knowledge retained by these more experienced individuals has historically been a blend of'art and science,' and has been relied on to make decisions in the exploration, production, trading, and refining of petroleum and petrochemicals," said Tony Mataya, director of the Energy Practice at technology consulting firm Information Services Group (ISG). One potential way to deal with the challenge is to deploy cognitive technologies.