Que$tor™: Oil and gas cost estimation software

Discover accurate cost projections for all of your E&P projects
How do you estimate your project lifecycle costs?

Used by more than 500 energy estimators and managers in 50 countries, QUE$TOR provides concept screening, optimization and detailed oil and gas CAPEX/OPEX cost estimates. The QUE$TOR application suite includes QUE$TOR Offshore, QUE$TOR Onshore and QUE$TOR LNG Regasification modules. With our comprehensive cost database for numerous attributes, technologies and equipment, cost estimation engineers, financial analysts, executives and M&A analysts use the software to:

  • Accurately model oil/gas expenditures and production
  • Create development scheduling
  • Save hundreds of hours in research and analysis
  • Support feasibility and pre-FEED studies and concept selection
  • Support l cost management for multiple upstream, LNG and offshore projects
  • Access latest global cost information with bi-annual updates on more than 60,000 cost points

QUESTOR is used by OVER 90 % of the top international companies


 We have used IHS QUE$TOR since 2010 to evaluate cost projections of large oil projects at various stages. Not only does QUE$TOR save us considerable time throughout the cost estimation process, it gives us an internationally recognized data platform that allows us to negotiate with IOC’s more fluently. “

National Oil Company, Middle East

“QUE$TOR is a global project modelling and decision support tool for use in the upstream oil and gas industry

It provides a time-tested solid basis for generating up-to-date cost estimates through a quick and consistent methodology, grounded in standard engineering algorithms.

Over 30 Cost Databases

Ensure global coverage

Thousands of users

in hundreds of oil companies

Over 90,000 data points

Updated twice every year

Advantages QUE$TOR brings to its National Oil Company users


‒ QUE$TOR provides flexibility to help leverage experience and measure performance, by allowing NOCs to optimise and compare development plans through aconsistent and reliable framework. Especially when comparing costs for cost recovery purposes
‒ NOCs have a clear view of their own developments and operations
‒ QUE$TOR enables NOCs to leverage knowledge in order modeland compare developments an aconsistent manor


‒QUE$TOR’s speed and consistency helps reduce time on the early phase of the project life cycle
‒ NOCs have a historical understanding of their own costs
‒ QUE$TOR allows NOCs to use their own costs and insight to explore variations on development concepts

Cost Date

‒ QUE$TOR ensures NOCs have a reliable framework around which collaboration can take place
‒ Global usage helps align and communicate with partner companies, to build better partnerships
‒ NOCs often work with partners which requiring a clear framework for discussion