Dianne Ralston began her career at SLB in 1998, initially serving as legal counsel. As her career progressed, she became director of compliance and then deputy general counsel, specializing in IP enforcement. 

Over the next few years, she held executive leadership positions at companies throughout the energy services sector, including serving as executive vice president, chief legal officer, and secretary at TechnipFMC. In 2020, she rejoined SLB as chief legal officer, a position in which she continues to serve. 

Dianne has bachelor’s degrees in Business Administration and Operations Management from Texas A&M University, as well as a JD in law from the University of Houston Law Center.