Saudi Arabia is set to invest over USD 180 billion across its oil and gas industry to reinforce its position as a global energy powerhouse. At the forefront of this ambitious expansion are upcoming oil and gas projects like the Jafurah Gas Development, the Master Gas System Expansion Phase III, the Amiral Petrochemical Complex, the Zuluf Oilfield Expansion, and the Haradh-Hawiyah upgrades

This article provides an in-depth look at these five major projects, highlighting their project scope, cost, current status, and expected completion date, aligning with the Kingdom’s long-term energy roadmap under Vision 2030.

List of Top 5 Upcoming Oil and Gas Projects in Saudi Arabia 2025 (according to project cost)

Jafurah Gas Development (Full Field Development)

Jafurah Gas Development is the largest oil and gas project in Saudi Arabia by Aramco. The project aims to boost gas production by more than 60% by 2030 compared to 2021 levels. Phase 2, valued at USD 12.4 billion, covers gas compression, pipelines, and new processing facilities, including the Riyas NGL fractionation plant. 

Phase 3, costing USD 8.8 billion, focuses on expanding the pipeline network and adding 3.15 billion cubic feet per day of capacity. Additional contracts for rigs, drilling, and tie-ins support increased extraction and processing. Phase 1 is on track for startup in 2025, while the overall investment is expected to exceed USD 100 billion.

In February 2025, Baker Hughes was awarded a contract by Tecnicas Reunidas to supply six gas compression trains and six propane compressors for the third expansion phase of Aramco’s Jafurah gas field in Saudi Arabia.

Marjan Oil Field Expansion

The Marjan oil and gas field, located in the Arabian Gulf off Saudi Arabia’s eastern coast, is being expanded under the Marjan Crude Increment Programme. Owned and operated by Saudi Arabian oil company - Saudi Aramco, the project aims to increase crude production capacity by 300,000 barrels per day (bpd) and produce an additional 360,000 bpd of ethane and natural gas liquids (NGL) by processing 2.5 billion standard cubic feet per day (Bscfd) of gas.

The programme includes offshore and onshore packages worth USD 5 billion and up to USD 7 billion, respectively, forming part of Aramco’s broader USD 18 billion investment to boost the capacity of the Marjan and Berri offshore fields by 550,000 bpd of crude and 2.5 Bscfd of gas.

Upon completion, the Marjan field’s total crude output is expected to reach 800,000bpd. The project also involves advanced infrastructure technologies such as 24 platforms, subsea pipelines, offshore gas processing facilities, and onshore expansions, including a gas plant, NGL recovery units, and desalination facilities.

In September 2024, Saipem SPA was awarded an additional contract by Saudi Aramco for the Marjan oilfield expansion, adding to contracts valued at approximately USD 7 billion.

Amiral Petrochemical Complex

The Amiral petrochemical complex is a world-scale oil and gas project being developed by Saudi Aramco and TotalEnergies in Jubail, Saudi Arabia. The complex is integrated with the SATORP refinery and is designed to process advantaged feedstocks to produce petrochemicals in a sustainable way.

The project includes a mixed-feed steam cracker with an ethylene production capacity of 1.65 million tons per year, two polyethylene lines each producing 500,000 tons annually, and units for extracting butadiene, aromatics, and other high-value-added derivatives.

Feedstocks such as off-gases, naphtha, ethane, and light naphtha supplied by Saudi Aramco will be used. The complex will support a specialty chemicals park aimed at manufacturing carbon fibers, lubricants, additives, automotive parts, and more.

The project is aligned with sustainable development goals, focusing on reducing carbon intensity. Some of the hydrogen produced by the steam cracker will replace methane as fuel in the refinery’s furnaces. Both partners made their final investment decision in December 2022 and in 2023, construction commenced.

Master Gas System Expansion - Phase 3

The Master Gas System Expansion Phase III is part of one of the world’s largest hydrocarbon transportation networks, aimed at enhancing gas delivery to support industrial growth in Saudi Arabia. The project’s primary objective is to convert power plants from oil to natural gas, supporting a cleaner energy mix and Saudi Arabia’s net-zero emissions goals. 

The scope includes the installation of a 56-inch pipeline spanning 310 km between Sector I STS-2 and Sector II STS-1, along with an additional 212 km of pipelines in the Shoaiba area using 56-inch, 10-inch, and 18-inch diameters. The project involves installing 18 mainline safety valves, 12 launching and receiving stations, and 26 burn pits for maintenance and disposal purposes, with civil, mechanical, and electrical instrumentation engineering playing a critical role.

The project was announced in the first quarter of 2020, followed by feasibility studies, FEED (Front-End Engineering Design), and EPC tenders, with construction activities beginning in the second quarter of 2024. The project is expected to be completed by the fourth quarter of 2028.

Zuluf Offshore Field Expansion

Saudi Aramco has approved the upcoming oil and gas expansion project for the Zuluf offshore oilfield, aiming to add more than 600,000 barrels per day (bpd) of production capacity. The expansion is one of the company’s largest offshore projects in recent years and forms part of its long-term strategy to boost output despite ongoing market volatility.

The development includes at least five major packages covering offshore platforms, subsea infrastructure, and pipelines, with key contracts awarded to industry leaders such as McDermott and Larsen & Toubro.

The expansion will see the construction of a central processing plant with two units capable of handling up to 600,000 bpd of Arabian Heavy crude. The associated gas and condensate will be sent to the Tanajib gas plant as part of the broader Marjan development program.

Zuluf’s production capacity is estimated at between 550,000 and 600,000 bpd once fully operational. The Zuluf expansion supports the company’s ambition to reach 13 million bpd production capacity by 2027, even as current output remains constrained by OPEC+ agreements.

Conclusion

Saudi Arabia’s oil and gas sector is undergoing a major transformation, balancing short-term market challenges with long-term growth objectives. Amid fluctuating crude oil prices and global energy transitions, these five flagship projects are central to sustaining the Kingdom’s leadership as the world’s largest crude oil exporter while expanding its natural gas infrastructure to meet domestic demand and fuel industrial growth. 

These developments are critical to achieving Saudi Arabia’s Vision 2030 goals of economic diversification, environmental sustainability, and energy security. As upstream investments approach USD 40 billion annually, these projects mark a bold step forward in shaping the future of energy in Saudi Arabia.

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