TLDR
Apus Energy used iQx PLANS to estimate well time and cost for its first exploration well in West Africa, in the frontier area offshore Guinea-Bissau, where deepwater operations and complex logistics introduced significant uncertainty. By replacing spreadsheet-based planning with risk-led forecasting, the operator strengthened collaboration and modelled the AFE with risk incorporated. The improved forecasts helped deliver the well within budget.
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Reducing cost uncertainty in West Africa frontier drilling
Deepwater drilling campaigns are inherently complex, with high financial stakes, significant uncertainties, and many stakeholders involved.
Apus Energy needed a way to accurately forecast their Atum-1X well time and costs and manage uncertainties throughout the Guinea-Bissau exploration drilling campaign.
Apus Energy’s criteria for a reliable time and cost estimate for its frontier deepwater wildcat well — the first deepwater well offshore Guinea-Bissau in 20 years — included a digital well delivery software solution that could be updated in real time to reflect major project uncertainties across logistics, contracts, and objectives.
Apus Energy aimed to use a cloud-native time and cost management software that is easily accessible to all team members, enhancing collaboration and ensuring that all stakeholders work with the same data, providing a single source of truth.

How iQx PLANS made a difference in Apus Energy’s Atum-1X Well
- Data-Driven decisions: PLANS provided forecasts for well duration and costs with visuals and detailed AFE
- Uncertainty management: helped the team better understand and plan for potential risks and outcomes
- Collaboration: as central data point, all team members stayed well-informed, making it easy to follow up on tasks and monitor project progress efficiently.
What value did iQx PLANS bring to this frontier deepwater drilling campaign?
- The user’s first ever exploration drilling campaign stayed within budget and schedule, avoiding overruns
- iQx PLANS, using Monte Carlo simulation modelling, helped streamline the well planning with highest focus on risk management
Key features leveraged: probabilistic cost and time estimation, uncertainty analysis, and risk management
iQx PLANS played a crucial role in mitigating unforeseen events and optimizing well delivery.






