Oil and gas companies can reduce operating costs without cutting production by removing avoidable spending, improving operating decisions and recovering product that would otherwise be lost—while treating safety, reliability and well productivity as constraints on every cost-saving measure. The right mix depends on the asset and its operating context; there is no universal cost-cutting ranking or guaranteed saving.
What cost reduction without production loss means
A cost program should improve operating efficiency without undermining the capabilities that keep assets safe, reliable and productive. Deloitte’s Operational Excellence in Oil and Gas frames operational excellence as an integrated effort across safety, reliability, well productivity, operating efficiency and cost optimization. That means a lower budget is not, by itself, proof of a successful saving.
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For example, reducing maintenance spending may lower near-term costs but become counterproductive if it contributes to a backlog, equipment failure or avoidable downtime. The practical test is whether a proposed change lowers the cost of producing while preserving safe, reliable operation—not simply whether it reduces one line item. Deloitte does not set universal KPI thresholds for making that judgment.
Where operators can look for structural savings
There is no single answer to “What are the biggest operating costs in oil and gas?” across all companies, regions and assets. Cost components interact, and their importance varies. Deloitte identifies areas such as well design, equipment and operating practices, service and equipment procurement, supply-chain analytics and contract terms as relevant to sustainable cost management.
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| Lever | What operators can examine | Production guardrail |
|---|---|---|
| Well design and reservoir management | Well design choices and real-time reservoir management and analytics. | Assess changes against well productivity and recovery, not cost alone. |
| Lean operations | Operating workflows and practices that can be simplified or made more efficient. | Do not remove steps or capability needed for safe, reliable operation. |
| Supply chain and procurement | Service and equipment procurement, supply-chain analytics and how individual costs interact. | Consider operational requirements and asset fit when evaluating alternatives. |
| Contract flexibility | Contract terms and whether greater flexibility can support sustainable cost management. | Evaluate the operational consequences as well as the price or terms. |
| Non-strategic spending | Unproductive or non-strategic costs that can be removed without weakening critical operations. | Track safety, reliability, maintenance backlogs and production alongside cost. |
This list is a set of places to investigate, not a universal ranking. A measure that fits one asset may not suit another because infrastructure, operating conditions and cost interactions differ.
How to evaluate a proposed cost-saving measure
- Establish cost visibility. Break down the relevant costs and understand how they interact before selecting a target. Avoid treating a single budget line as an isolated opportunity.
- State the production and reliability constraint. Define what must remain protected for the asset, including safe operation, well productivity and reliability. Track relevant indicators, such as downtime and maintenance backlog, alongside cost. The sources do not prescribe one set of universal thresholds.
- Estimate the net case. Compare expected savings with capital, operating and implementation requirements. For gas-recovery measures, include captured volumes and the value of the gas; the business case changes with costs and commodity prices.
- Check fit and risk. Consider the asset’s infrastructure, regulatory setting, safety and maintenance implications, and whether the operating change is practical for that location.
- Monitor operating outcomes. Check whether the measure is delivering the intended cost result without weakening production or other operational-excellence dimensions. Adjust it if the operating evidence does not support the original case.
Reduce methane losses and recover saleable gas
For upstream operations, leak detection and repair, replacing methane-emitting equipment with electric devices, vapor recovery units and making productive use of associated gas are among the methane measures identified by the International Energy Agency (IEA). Repairing a leak or capturing gas can reduce emissions while preserving gas that may be sold or used, but the economics depend on the cost of the measure, the volume captured and the gas’s value.
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The scale of the opportunity is significant in the IEA’s global estimates, but those figures are not forecasts for an individual company. In 2026, the IEA estimated that nearly 30 Mt of upstream oil and gas emissions could be abated at no net cost under average energy prices in 2025, in part because the value of captured and sold or used gas can exceed abatement costs. In its 2025 analysis, the IEA estimated that around 25 Mt of upstream methane emissions—40% of worldwide upstream oil and gas methane emissions—could have been avoided at no net cost in 2024. It also estimated that measures with internal rates of return above 25% could have avoided more than 15 Mt. These are distinct, dated global estimates; neither figure is a company-level operating-cost saving.
Use digital tools when they improve a decision or workflow
Sensors, analytics and reservoir modeling may help operators make production or maintenance decisions; automation, robotics and drones may support inspection of subsea equipment, pipelines, tanks and remote facilities. The useful question is not whether a technology is available, but whether it improves a specific decision or workflow enough to justify its implementation and operating requirements.
The IEA estimated in 2017 that widespread digital technologies could decrease production costs by 10% to 20%, citing applications including seismic-data processing, sensors and reservoir modeling. This is an estimate of potential impact, not a measured universal result or a current guarantee for any particular field. Results depend on context and implementation.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Apply the guardrails across different parts of the industry
The detailed cost-management guidance above is primarily upstream-oriented: it concerns activities such as well design, reservoir management and associated-gas recovery. Oil and gas companies also operate in midstream and downstream settings, where the relevant assets and workflows differ. The cited material does not establish a single set of measures or a cost hierarchy for every segment, geography or company.
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Across the business, the decision principle remains to make cost visible and evaluate savings alongside safe operation, reliability and production. The operational indicators and the specific constraints should reflect the asset in question; the cited sources do not establish universal targets.
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