Netherland, Sewell & Associates, Inc.

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Worldwide Petroleum Consultants

Reputation. Expertise. Service.

Dallas / London / Singapore

Property Evaluation Seminars

Each year, NSAI conducts its highly regarded Oil & Gas Property Evaluation Seminar in Dallas, London, and Singapore for non-technical financial professionals whose work relates to the petroleum industry.

Our Oil & Gas Seminars
Pricing / Definitions / Regulations

SEC Pricing Data

These are some of the resources that NSAI has used in developing its procedures and standards for reserves reports to be used in filings with the SEC, including pricing data (compiled monthly) and guidance.

View Resources
Geological / Geophysical / Engineering

Disciplines & Capabilities

NSAI provides a complete range of geological, geophysical, petrophysical, and engineering services and has the technical experience and ability to perform these services in any of the onshore and offshore oil and gas producing areas of the world.

Our Services
Based on Public Filing Data

The #1 Choice for SEC Reserves Reporting

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An NSAI report honors all the data and industry reserves definitions to give a full and fair inventory of reserves and cash flow. Each report is based on sound judgment, broad experience, technical expertise, and accepted practices.

Our clients expect quality and integrity. We demand it.

Netherland Sewell Seal Blue
A Global Reach

Clients Familiar With Our Work

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Netherland, Sewell & Associates, Inc. is one of the most respected names in independent reserves reporting. Our technical staff has successfully completed thousands of challenging assignments for leading petroleum and financial concerns around the globe. Our clients include small privately owned oil and gas companies, major and independent oil and gas companies, national oil and gas companies, financial institutions, and investors. A few of the companies familiar with our work are shown below.