Sub surface ops
Independent Expert Evaluation
of Oil & Gas Assets
Objective, standards-compliant reserves and resources audits that withstand technical, financial, and regulatory scrutiny.
About the Service
We provide independent expert evaluation of oil and gas assets in accordance with International frameworks including PRMS, SEC, and SPE-CRR. Our mission is to support sustainable growth and transparency in the petroleum sector by delivering objective, technically sound evaluations that stand up to both regulatory and investor scrutiny.
Comprehensive Expert Services
As an independent petroleum engineering and reserves auditing company, we bring together multidisciplinary expertise across geology, reservoir engineering, geophysics, and economics.
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Independent Reserves & Resources Audit
Certified volumetric and economic evaluation for project financing, IPOs, or M&A. -
PRMS & SEC Compliance Review
Cross-validation of reserves classification and documentation transparency. -
Asset Optimization Advisory
Scenario analysis for recovery factor improvement and CAPEX prioritization. -
Portfolio Benchmarking
Comparative assessment across multiple fields and basins.
Our Approach
Methodology That Withstands Technical and Regulatory Scrutiny
Data Audit & Validation
Review of seismic, geological, and production data for completeness and consistency.
Integrated Evaluation
Multidisciplinary volumetric and simulation analysis to define P1/P2/P3 reserves.
Standards Alignment
Structured reporting to PRMS, SEC, or GKZ templates with traceable audit trail.
Reporting & Advisory
Delivery of certified report plus actionable optimization recommendations.
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Benefits
Deep Technical Expertise, Proven Industry Track Record
- 100+More than 100 assets evaluated globally
- >10 billionMore that 10 Billion BOE certified reserves under audit
- ComplianceCompliance: PRMS, SEC, GKZ, SPE-CRR
Ready for an Independent Evaluation of Your Assets?
Speak directly with our reserves audit team to discuss your project’s scope, standards and deliverables.
Why Clients Choose Us
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Regulatory & Investor Confidence
PRMS and SEC conformity ensures audit transparency -
Technical Accuracy
Proven ±5 % variance on volumetric reconciliation -
Independence & Integrity
Certified third-party status recognized by financial institutions -
Secure Data Handling
ISO 27001-compliant infrastructure and NDAs for all evaluations
Frequently Asked Questions
Depending on the data scope and asset complexity, a single-field audit typically takes 6–10 weeks from data receipt to certified report issuance. Multi-field portfolios may extend to 3–4 months.
We adhere to PRMS 2018 and SEC for international projects. Consistency is achieved through internal peer review, SPE-qualified auditors, and cross-checking with production history and volumetric models.
All data transfer is conducted over encrypted SFTP or client VPN. We operate under ISO 27001 protocols and sign NDAs before data exchange. No proprietary information is shared without client consent.
We recommend providing geoscience datasets (seismic interpretations, well logs, petrophysical analyses), production data, and field development plans. Our team assists in organizing and validating datasets prior to analysis.
Independence, repeatability, and recognized methodology. Our evaluations are free of operator bias and validated through a multi-discipline peer-review process, ensuring regulatory and investor confidence.
Other Solutions
From field to finance, our end-to-end AI suite unlocks uptime, compliance and productivity across your entire oil & gas value chain