Hassi Messaoud is a producing conventional oil field located onshore Algeria and is operated by Sonatrach . The field is located in block Hassi Messaoud.

Two expansion projects are associated with the Hassi Messaoud conventional oil field, namely Hassi Messaoud North Fields Development and Hassi Messaoud South Fields Development. The expansion projects are currently in the commissioning stage.

Field participation details

The field is owned by Sonatrach.

Production from Hassi Messaoud

The Hassi Messaoud conventional oil field recovered 78.98% of its total recoverable reserves, with peak production in 1977. The peak production was approximately 719.52 thousand bpd of crude oil and condensate. Based on economic assumptions, production will continue until the field reaches its economic limit in 2053. The field currently accounts for approximately 19% of the country’s daily output.

Remaining recoverable reserves

The field is expected to recover 2,427.29 Mmboe, comprised of 2,167.39 Mmbbl of crude oil & condensate and 1,559.39 bcf of natural gas reserves. Hassi Messaoud conventional oil field reserves accounts 0.53% of total remaining reserves of producing conventional oil fields globally.

Contractors involved in the Hassi Messaoud conventional oil field

Some of the key contractors involved in the Hassi Messaoud project as follows.

Design/FEED Engineering: JGC Holdings

Main EPC: Dodsal Group and JGC Holdings

Other Contractors: JGC Holdings, SKEMA and Vinci

About Sonatrach

Sonatrach SpA (Sonatrach) is an integrated oil and gas company. It carries out exploration, production, liquefaction, refining, marketing and maritime transportation of hydrocarbons and petroleum products. The company operates pipeline transport, storage, loading and unloading infrastructure network to transport crude oil; condensate, LPG, and natural gas. Sonatrach also carries out production and marketing of liquefied natural gas and by-products such as ethane propane butane and gasoline. It provides research, development, exploitation, and production of hydrocarbons. The company has operational presence in Europe, Africa, and South America. Sonatrach is headquartered in Algiers, Algeria.


Information on the field is sourced from GlobalData’s fields database that provides detailed information on all producing, announced and planned oil and gas fields globally. Not all companies mentioned in the article may be currently existing due to their merger or acquisition or business closure.