National Company for Major Petroleum Works (ENGTP)

Algeriaengtp.com

Its role EPC

project tracked
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news article
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The Entreprise Nationale des Grands Travaux Pétroliers (ENGTP), also known as GTP, is a major Algerian engineering and construction company specializing in large-scale industrial projects, primarily in the hydrocarbons and energy sectors.

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As a 100% subsidiary of the Sonatrach Group, Algeria's national oil company, ENGTP focuses on engineering, civil works, prefabrication, mechanical assembly, pipeline installation, and industrial maintenance for facilities involved in oil and gas production, processing, transport, and distribution.

Headquartered in Réghaia near Algiers, the company maintains regional operations in Skikda, Arzew (Oran area), Hassi R'mel, and Hassi Messaoud. It employs approximately 10,000 to 13,000 staff and has decades of experience collaborating with international contractors on Sonatrach infrastructure.

Formally established in 1980 as successor to earlier entities dating to the late 1960s, ENGTP holds ISO 9001, 14001, and 45001 certifications. It has expanded into seawater desalination, serving as lead contractor on multiple national plants, including the Dahra project in Chlef wilaya, supporting Algeria's water security initiatives while remaining a leader in domestic industrial construction.

Also known as GTP, National Company for Major Petroleum Works, and Entreprise Nationale de Grands Travaux Pétroliers.

Projects ENGTP is involved in

chemXplore tracks 1 project involving ENGTP, of which one is active.

  1. none Announced / Concept
  2. none FEED / Pre-FID
  3. none FID / Sanctioned
  4. 1 project Under Construction
  5. none Commissioning & Start-up

1 more active project is in the record. See all 1 in chemXplore

What its projects make

ENGTP in chemical industry news

15 November 2026
SONATRACH reviews construction of 300,000 m³/day Dahra desalination plant

Construction is reported to be on schedule; the plant is intended to supply more than three million people across three wilayas.

Where its projects are

active all projects