Insights

Reserves leadership NSAI is widely recognized as the #1 choice for SEC reserves reporting and has a strong track record in petroleum property analysis for industry and government clients, suggesting a reliable entry point for regulatory and compliance services and long-term engagement opportunities.

Broad basin expertise With expertise across most producing basins worldwide and a large team of engineers, geologists, geophysicists, and petrophysicists, NSAI represents a strong partner for cross-disciplinary technical assessments, asset valuations, and production optimization projects.

Financial health Revenue range of 100M to 250M indicates a mid-market firm with sizable project scope but potentially lean margins, presenting opportunities for high-value consulting engagements, efficiency improvements, and risk-managed advisory services.

Recent engagement opportunities NSAI has announced hosting and participation in industry seminars and charity events in 2025, indicating active client development activities and potential for sponsorship-led demand generation, networking, and collaborative advisory services.

Security and resilience Past ransomware incident highlights the importance of cybersecurity and data protection in their operations, suggesting a sales angle for robust data security, backup, and incident response services as part of a broader risk management offering.

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Netherland, Sewell & Associates, Inc. Tech Stack

Netherland, Sewell & Associates, Inc. uses 8 technology products and services including RSS, WordPress, Google Cloud, and more. Explore Netherland, Sewell & Associates, Inc.'s tech stack below.

  • RSS
    Content Management System
  • Content Management System
  • Infrastructure As A Service
  • yepnope.js
    Javascript Frameworks
  • Really Simple Discovery
    Miscellaneous
  • Platform As A Service
  • MediaElement.js
    Video Players
  • FitVids.js
    Web Tools And Plugins

Netherland, Sewell & Associates, Inc.'s Email Address Formats

Netherland, Sewell & Associates, Inc. uses at least 7 email formats:
Netherland, Sewell & Associates, Inc. Email FormatsExamplePercentage
FirstLast@netherlandsewell.comJohnDoe@netherlandsewell.com
54%
FLast@netherlandsewell.comJDoe@netherlandsewell.com
29%
Last@netherlandsewell.comDoe@netherlandsewell.com
13%
FirstLas@netherlandsewell.comJohnDoe@netherlandsewell.com
4%
FLast@nsai-petro.comJDoe@nsai-petro.com
91%
Last@nsai-petro.comDoe@nsai-petro.com
8%
FMiddleLast@nsai-petro.comJMichaelDoe@nsai-petro.com
1%

Frequently Asked Questions

What is Netherland, Sewell & Associates, Inc.'s phone number?

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You can contact Netherland, Sewell & Associates, Inc.'s main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is Netherland, Sewell & Associates, Inc.'s official website and social media links?

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Netherland, Sewell & Associates, Inc.'s official website is netherlandsewell.com and has social profiles on LinkedIn.

How much revenue does Netherland, Sewell & Associates, Inc. generate?

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As of August 2026, Netherland, Sewell & Associates, Inc.'s annual revenue is estimated to be $100M - $250M.

What is Netherland, Sewell & Associates, Inc.'s SIC code and NAICS code?

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Netherland, Sewell & Associates, Inc.'s SIC code is 8711 - Engineering Services and NAICS code is 211 - Oil and Gas Extraction.

How many employees does Netherland, Sewell & Associates, Inc. have currently?

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As of August 2026, Netherland, Sewell & Associates, Inc. has approximately 171 employees across 2 continents, including North America and Asia. Key team members include Chief Executive Officer: R. T., Owner: N. S. and Vice President: N. G. Explore Netherland, Sewell & Associates, Inc.'s employee directory with LeadIQ.

What industry does Netherland, Sewell & Associates, Inc. belong to?

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Netherland, Sewell & Associates, Inc. operates in the Oil and Gas industry.

What technology does Netherland, Sewell & Associates, Inc. use?

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Netherland, Sewell & Associates, Inc.'s tech stack includes RSS, WordPress, Google Cloud, yepnope.js, Really Simple Discovery, WP Engine, MediaElement.js and FitVids.js.

What is Netherland, Sewell & Associates, Inc.'s email format?

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Netherland, Sewell & Associates, Inc.'s email format typically follows the pattern of FirstLast@netherlandsewell.com. Find more Netherland, Sewell & Associates, Inc. email formats with LeadIQ.

When was Netherland, Sewell & Associates, Inc. founded?

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Netherland, Sewell & Associates, Inc. was founded in 1961.
Netherland, Sewell & Associates, Inc. logo

Netherland, Sewell & Associates, Inc.

Oil and GasTexas, United States51-200 Employees

NSAI is a Dallas-based firm providing worldwide petroleum property analysis to the oil and gas industry, financial institutions, and government agencies. It delivers fully integrated services spanning engineering, geology, geophysics, petrophysics, and economic analyses for upstream energy projects. With offices in Dallas and Houston, the company relies on a mid-sized, multidisciplinary team to support its global scope and expertise in producing basins. NSAI is recognized within the oil and gas and financial communities for prioritizing long-term client relationships and service, including reserves reporting. A recent development is that the firm hosted an Oil & Gas Property Evaluation Seminar in Dallas in May 2025.

Section iconCompany Overview

Phone number
SIC Code
8711 - Engineering Services
NAICS Code
211 - Oil and Gas Extraction
Founded
1961
Employees
51-200

Section iconFunding & Financials

  • $100M - $250M

    Netherland, Sewell & Associates, Inc.'s revenue is estimated to be in the range of $100M - $250M

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