Ruth Thomas is a geoscientist with 24 years of experience delivering subsurface projects for operators such as CNR International, Apache, Talisman Energy, and Repsol Sinopec. She holds a first-class Bachelor of Engineering honours degree in Industrial Geology; an MSc in Geology, and after earning her MSc in Decommissioning from the University of Aberdeen in 2022, she joined Well-Safe Solutions as their Subsurface Manager, responsible for the company’s global subsurface portfolio.

Ruth is a strong advocate for the role of geoscience in cost-effective well abandonment, and she actively promotes technical excellence and industry best practice through regular regulator and industry engagement, conference presentations, and training initiatives. She is an active board member of the SPE P&A Technical Section, and co-founder and current chair of the Offshore Energies (UK) Geoscience Excellence in Decommissioning workgroup.