Marjan Field Expansion Project continues to advance in Saudi Arabia as Saudi Aramco progresses multiple offshore and onshore development packages aimed at increasing production capacity from one of the Kingdom’s largest offshore oilfields. The megaproject, valued at approximately $21 billion, remains a cornerstone of Aramco’s upstream investment strategy. Since the original EPC contract awards, major contractors have continued executing offshore platforms, pipelines, gas processing facilities, utilities infrastructure, and associated field developments across the Marjan Increment Program.
Located offshore in the Arabian Gulf, the Marjan field forms part of Aramco’s broader strategy to maintain long-term crude oil production capacity while expanding associated gas processing infrastructure. The development includes several interconnected work packages covering offshore facilities, water injection systems, gas treatment plants, utility networks, and pipeline installations.
A significant portion of the project’s offshore infrastructure has either reached completion or entered advanced stages of execution. Several packages involving offshore facilities, water injection platforms, utilities systems, and processing infrastructure have progressed substantially since the original EPC awards.
Marjan Field Expansion Project Advances Through 2026
As of 2026, Aramco continues issuing new offshore engineering, procurement, construction, and installation contracts across its offshore portfolio, including Marjan. Recent contract awards demonstrate continued investment in offshore production infrastructure despite changing market conditions. Several offshore construction campaigns linked to the broader development program are expected to continue through 2027 and 2028.
The Marjan development aims to enhance crude oil production while increasing gas handling and processing capacity. Existing infrastructure already supports significant production volumes, and the expansion program introduces new facilities designed to improve operational efficiency and support future output requirements.
The project remains one of the largest upstream oil and gas developments in the Middle East. Its scope includes offshore platforms, gas-oil separation plants, water injection facilities, flare systems, utilities infrastructure, and extensive pipeline networks connecting offshore and onshore assets.
Marjan Field Expansion Project Reflects Regional Upstream Growth
The continued progress of the Marjan project highlights strong investment across the Middle East’s upstream oil and gas sector. Similar investment trends are visible across the region, including the recently announced Upstream Oilfield Facilities Project, where Técnicas Reunidas secured two major EPC contracts for crude oil production facilities in the Middle East. Both developments demonstrate how national oil companies continue investing in production infrastructure to support long-term energy security and operational efficiency.
Aramco’s offshore investment strategy extends beyond Marjan and includes upgrades across several producing fields. Consequently, international contractors continue securing major contracts for offshore platforms, subsea infrastructure, pipelines, and processing facilities throughout the Gulf region.
The Marjan expansion remains strategically important because it supports production reliability from mature offshore assets while creating additional capacity for future demand. Therefore, the project continues to play a central role in Saudi Arabia’s long-term energy infrastructure program.
Current Status of the Marjan Field Expansion Project
The project remains active in 2026, with multiple packages completed and others under construction or progressing through advanced execution stages. Offshore facilities, pipeline installations, utilities infrastructure, and gas processing components continue to move toward full operational integration. Aramco also continues awarding supplementary offshore contracts associated with field optimization and infrastructure upgrades.
Upon completion, the project will strengthen Saudi Arabia’s offshore production network while enhancing crude oil and associated gas processing capabilities. The development also supports Aramco’s objective of maintaining production capacity from key offshore fields over the coming decades.
Read Also: Saudi Arabia’s Neom Project Marks Development Milestone
An Overview of Aramco’s Marjan Field Project
Currently, the project’s existing infrastructure facilities feature three offshore gas-oil separator plants (GOSPs). The Marjan field got discovered in 1967, with a potential capacity of 2.31 billion barrels of recoverable crude oil.
Marjan GOSP-1’s installation in 1973, resulted in a production capacity of 100,000bpd of oil. Further, its production also included 175 million standard cubic feet a day (Mscfd) of gas. Thereafter GOSP-2 and GOSP-3 became operation in 1994. As a result, its total production capacity, elevated to 600,000bpd of oil, alongside 675Msfcd of gas.
In total, Aramco’s Marjan Field Project boasts a $21 billion budget. Overall, it targets to expand the field and increase its crude production capacity. Thus far, the project has been able to carry out development works for its Radio Frequency Identification System.
The works were contracted to a subsidiary of Elsewedy Electric in May 2022. Three W Networks successfully worked on the development’s offshore and onshore expansion as part of package 6.
Project Fact Sheet
Project Name: Marjan Field Expansion Project
Location: Arabian Gulf, offshore Saudi Arabia
Project Owner: Saudi Aramco
Sector: Oil and Gas
Project Type: Offshore Oilfield Expansion
Estimated Investment Value: US$21 billion
Offshore Package Value: Approximately US$5 billion
Onshore Package Value: Approximately US$7 billion
Current Status: Ongoing execution and phased completion
Project Components:
- Offshore production platforms
- Water injection platforms
- Gas-oil separation plants
- Gas treatment facilities
- Sulphur recovery facilities
- Offshore utilities systems
- Pipeline infrastructure
- Flare facilities
- Crude dehydration facilities
- Firewater systems
Strategic Objective:
- Increase production capacity
- Support long-term field development
- Enhance gas processing capabilities
- Improve operational efficiency
Expected Completion: Phased delivery through 2027–2028
Current Stage: Mixed status across packages, including completed and active construction works
Project Team
Project Owner and Operator: Saudi Aramco
Offshore EPCI Contractor (Platform Package): Saipem
RFID Systems Contractor: Three W Networks
Parent Company Associated with Package 6 Works: Elsewedy Electric
Offshore Construction Contractors: Multiple package contractors
Pipeline Installation Contractors: Various package contractors
Utilities Infrastructure Contractors: Various package contractors
Gas Processing Contractors: Multiple EPC contractors
Marine Installation Contractors: Multiple offshore specialists
Engineering Consultants: Various project package consultants
Equipment Suppliers: Multiple international vendors
Commissioning Teams: Saudi Aramco and package contractors
Operations Team: Saudi Aramco Offshore Operations Division
Regulatory Authority: Ministry of Energy
Environmental and Safety Oversight: Saudi Aramco HSE Teams and national regulators
Leave a Reply