Meed | Consultant progresses work on Petro Rabigh project

Consultant progresses work on Petro Rabigh project

7 August 2026

Saudi Arabia's Rabigh Refining & Petrochemical Company (Petro Rabigh) is overseeing progress on a project to build additional units at its integrated refining and petrochemical complex in Rabigh, on the kingdom’s Red Sea coast.

Petro Rabigh, which is majority-owned by Saudi Aramco, appointed Australia-headquartered Worley to provide engineering and project management consultancy (PMC) services for the project in the first quarter of this year, sources told MEED.

The overall scope of work on the project covers the construction of the following units:

Light naphtha isomerisation unit
De-asphalting and dewaxing unit
Ebullated bed configuration
Sulphur block (SRU/ARU/SWS/SFU)
Sales gas allocation and pipeline construction
Utilities unit outside battery limit
Auxiliary piping modifications
Utility and hydrocarbon tie-ins.

Under the contract, the consultant will perform engineering studies and PMC functions, and assist the client in developing cost estimates and project-specific execution and technical procedures, based on Aramco guidelines for both the design basis scoping paper (DBSP) stage and, subsequently, the front-end engineering and design (feed) stage.

Petro Rabigh will draw on the consultant’s advice on design, procurement and the development of new processing technologies, including for light naphtha isomerisation; vacuum residue processing technologies such as de-asphalting and dewaxing; an ebullated-bed configuration integrated with the diesel hydrotreating section; and unconverted oil hydrotreatment.

According to sources, Petro Rabigh issued the tender for engineering and PMC services for the additional units project on 30 May last year.

It set an initial bid submission deadline of 29 June last year, which it then extended to 17 July and again to 24 July, with engineering firms submitting their proposals by that date, sources said.

Following months of evaluation, discussions and negotiations with bidders, Petro Rabigh selected Worley for the contract.

Red Sea downstream complex

Petro Rabigh was originally established in 1989 as a basic topping refinery with crude oil processing facilities in Rabigh, along Saudi Arabia’s Red Sea coastline, about 165 kilometres to the north of Jeddah in Mecca Province.

Saudi Aramco and Japan’s Sumitomo Chemical Company formed an equal joint venture in 2005 to transform the Petro Rabigh crude oil refining complex into an integrated refinery and petrochemicals complex, with the strategic objective of expanding Saudi Arabia’s annual production capacity of refined products and petrochemicals.

Three years after the creation of the Petro Rabigh joint venture, the partners floated 25% of its shares in an initial public offering on the Saudi Stock Exchange (Tadawul) in 2008, following which Aramco and Sumitomo Chemical each held 37.5% shares in Petro Rabigh, with the remaining shares listing on the Tadawul.

In October last year, however, Aramco completed the acquisition of an additional 22.5% stake in Petro Rabigh from Sumitomo Chemical. Following the completion of the transaction, valued at $702m or SR7 a share, Aramco became the majority shareholder in Petro Rabigh, with an equity stake of 60%, while Sumitomo retains an interest of 15%. The remaining 25% shares of Petro Rabigh continue to trade on the Tadawul.

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Following the formation of the Petro Rabigh joint venture in 2005, Aramco and Sumitomo Chemical launched the expansion of the refining facility into an integrated refining and petrochemicals complex in 2006, investing $9.8bn in the project, 60% of which was secured through external financing. Engineering, procurement and construction works on phase one were completed in 2009, with the integrated downstream complex entering operations in November of that year.

The Petro Rabigh downstream complex consists of a topping refinery that has a 340,000 barrel-a-day (b/d) crude distillation unit, a 47,000 b/d hydrotreater, a 12 million cubic-feet-a-day hydrogen plant, a 75,000 b/d naphtha merox unit and a 60,000 b/d kerosene merox unit, along with supporting utilities, product tankage and a marine terminal.

Aramco and Sumitomo Chemical initiated Petro Rabigh’s phase two expansion project, valued at $8bn, in 2014. The second expansion phase was commissioned in 2018 and added 15 chemicals plants to the Petro Rabigh complex, raising the facility’s total production capacity to 18.4 million tonnes a year (t/y) of petroleum-based products.

The expansion also increased Petro Rabigh’s capacity to process an additional 30 million cubic feet a year of ethane into 2.4 million t/y of ethylene and propylene-based derivatives, and achieved a naphtha output of 3 million t/y.

Expansion of the main existing chemicals plant and the establishment of a clean fuels complex comprising polyether polyols, naphtha treating and sulphur recovery units were also part of the phase two project.

In addition to awarding Worley the engineering and PMC services contract this year, Petro Rabigh awarded US-based KBR a 10-year contract in February this year to provide maintenance services covering the company’s polymer plants in Rabigh, on the kingdom’s Red Sea coast.

Work on the operations and maintenance contract will be executed by KBR’s business line, which operates under the Houston-headquartered firm’s Technology Solutions portfolio, sources told MEED.

Prior to this contract, in March 2024, Petro Rabigh awarded KBR a similar five-year asset condition monitoring programme contract. As part of that job, KBR is to provide predictive maintenance services at Petro Rabigh’s main plant.

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Indrajit Sen

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READ THE SEPTEMBER 2026 MEED BUSINESS REVIEW – click here to view PDF

Nuclear power ambitions gather pace; Kuwait keeps dealmaking alive despite war; Region invests in raising gas processing capacity.

Distributed to senior decision-makers in the region and around the world, the September 2026 edition of MEED Business Review includes:

> AGENDA: Gulf nuclear revival takes shape

> MARKET FOCUS: Kuwait keeps dealmaking alive under fire

> INDUSTRY REPORT: Gas processing takes centre stage in Mena region

> INTERVIEW: Emsteel persists with business productivity and efficiency

> TUNNELS: The Gulf’s next construction boom is happening underground

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- Sea & Land Drilling Contractors (Oman)
- Sinopec International Petroleum Service Corporation (China)
- Karamay Jianye Energy (China)
- Modern Drilling Company (Egypt)
- Grey Wolf Drilling International (US)
An earlier list, which was published on 11 February, included 51 qualified companies.

The reduction in qualified drilling contractors follows KOC’s notice on 27 April this year, informing existing qualified contractors that they would need to reapply.
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Abu Dhabi-based Emirates Water & Electricity Company (Ewec) expects carbon emissions from power and water production to fall by more than 45% by 2035 as the UAE expands renewable energy and reverse osmosis (RO) desalination.

The state offtaker's latest long-term system planning forecasts emissions will decline from about 42 million tonnes in 2019 to approximately 23 million tonnes in 2035.

The reduction is expected despite annual electricity demand that is forecast to rise by about 70% in 2026-33.

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