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The origins and success of EVEREST

EVEREST’s development began with the ISAPP research program in 2005. This initiative, launched by TNO, Delft University of Technology, and Shell, aimed to improve hydrocarbon recovery, well productivity, and reservoir development methods. The program supported over 40 PhD students, staff, and field case demonstrations. Building on ISAPP’s success, the ISAPP2 program expanded to include ENI, Petrobras, and Equinor (formerly Statoil). These new partners contributed to enhancing the closed-loop reservoir management workflow. Following ISAPP2, Equinor and TNO focused on advancing optimization aspects of the ISAPP technology. Their efforts resulted in EVEREST, a mature software tool with a Technology Readiness Level above 7. This progression from academic research to practical application has shaped EVEREST into an effective decision support platform for reservoir management. EVEREST has already transformed decision-making processes across a wide range of applications. From optimizing field development strategies to designing renewable energy systems, our technology has consistently unlocked significant value.

After a decade of successful bilateral collaboration between Equinor and TNO, we’re excited to announce that EVEREST is now open-source. This move isn’t just about sharing technology – it’s about fostering an open, collaborative environment where industry leaders can shape the future of optimization best practices.

How to cite EVEREST

Hanea, R.G.,  Oliveira, R., Popa, T.,  Feldmann, Eide, Ø., Sortland, S., Van Der Heijden, T., Barros, E.G.D., Szklarz, S.P., Leeuwenburgh, O., Verveer, P.J., De Hoop, S., Bottero, S., and Hopstaken, K. (2025). EVEREST™ - An Open-Source Platform for Decision Making Under Uncertainties. Society of Petroleum Engineers - SPE Reservoir Simulation Conference 2025, RSC 2025. https://doi.org/10.2118/223850-MS

Fonseca, R.M., Chen, B., Jansen, J.D., and Reynolds, A.C. (2017). A stochastic simplex approximate gradient (StoSAG) for optimization under uncertainty. International Journal for Numerical Methods in Engineering, 109 (13), 1756-1776. https://doi.org/10.1002/nme.5342

By joining the EVEREST community, you’re not just adopting a tool – you’re becoming part of a network of passionate, forward-thinking scientists and engineers. Together, we continuously refine practices and push boundaries, ensuring that you’re always steps ahead in risk management and decision optimization. Wherever you are within your EVEREST journey, you'll find support among this community. The TNO-EVEREST team can also provide you with all the professional support you may need to benefit from EVEREST to the maximum.

The EVEREST way of working is here to stay, and we’re continuously evolving to meet new optimization challenges. Our open, collaborative environment ensures that EVEREST remains a practical, accessible, and transparent decision support tool designed by and for practitioners. Are you ready to transform uncertainty into opportunity? Join us in shaping the energy landscape of tomorrow. Discover how EVEREST can revolutionize your approach to reservoir management and asset optimization.