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Netherland, Sewell & Associates, Inc.

Dallas, United States (US) · Energy

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Verified by Enterprise League

Data quality

Complete · Accuracy

Last verified

Sep 2026

Netherland, Sewell & Associates, Inc. is a Energy company based in Dallas, United States (US), founded in 1961, with 100-150 employees. Netherland, Sewell & Associates, Inc.'s profile is verified on Enterprise League.

Overview

Netherland, Sewell & Associates, Inc. (NSAI) is a worldwide leader of petroleum property analysis to industry and financial organizations and government agencies. We deliver high quality, fully integrated engineering, operational, geological, geophysical, petrophysical, and economic solutions for all facets of the upstream energy industry. • Offices in Dallas and Houston, Texas • 60+ Engineers, Geologists, Geophysicists, and Petrophysicists • 75+ Engineering and Geology Analysts • Expertise in most producing basins worldwide • Well known within the oil & gas and financial communities • The #1 choice for SEC reserves reporting • Focused on client relationships and service
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Contact Details

info@nsai-petro.com

Dallas, United States (US), 2100 Ross Avenue, Suite 2200

+1

Founded

1961

Employees

100-150

Categories

Oil, Gas and Consumable Fuels

Keywords

#sec reserves reports and audits

#a&d evaluations

#prospective resources assessments

#deepwater development studies

#project finance certifications

#equity determinations

#reservoir simulation

#gas storage

#midstream evaluations

#unconventional oil and gas

#carbon capture and storage

#oil and gas expert witness

#competent person's reports

#oil and gas acquisition & divestiture evaluations

#carbon intensity & greenhouse gas (ghg) management

Awards

• 2026 OpenSee all

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