EPC Intel
EPC Intel

QatarEnergy advances major Maydan Mahzam offshore redevelopment

QatarEnergy has now placed the two major EPIC packages for the redevelopment of its Maydan Mahzam offshore oil field, handing PTSC M&C a massive platform-heavy package and COOEC the subsea-focused EPIC-2 scope.

Two contractors, one major offshore redevelopment

The contracting picture at Maydan Mahzam is finally becoming clear.

PTSC Mechanical & Construction was awarded the EPIC-1 package, also known as Maydan Mahzam 1 or MM1, on September 13. The Vietnamese contractor will act as the main EPCIC contractor, with execution scheduled from Q4 2026 through the end of 2031.

COOEC has subsequently confirmed that it has received QatarEnergy’s notification of award for the MM EPIC-2 package, giving the Chinese offshore contractor responsibility for another major portion of the redevelopment.

The two awards effectively divide much of the project’s heavy offshore construction market between Vietnam and China.

That is important for suppliers because these are very different packages.

PTSC takes the platform-heavy package

EPIC-1 is the fabrication and facilities monster.

PTSC M&C’s scope covers engineering, procurement, fabrication, transportation, installation, hook-up and commissioning of eight new offshore structures with a combined weight exceeding 100,000 tonnes. Brownfield modifications, tie-ins and integration with existing Maydan Mahzam facilities are also included.

Major facilities include the PS2K Central Processing Platform, PS2L utilities and living quarters platform, PS2R riser platform, MMI06C wellhead platform, bridges and associated support structures.

The PS2K topsides alone will weigh approximately 19,000 tonnes.

The contract value has been reported at more than US$3 billion, making MM1 the largest project secured by PTSC M&C to date.

For the supply chain, this means years of demand across structural steel, piping, valves, rotating equipment, electrical and instrumentation systems, accommodation equipment, process packages, cranes, telecoms, safety systems and offshore installation services.

COOEC gets the subsea opportunity

EPIC-2 shifts the procurement story below the waterline.

According to COOEC’s announcement, its package covers EPCI turnkey delivery of more than 100 kilometres of subsea pipelines, together with subsea cables, umbilicals and associated facilities.

That makes EPIC-2 a substantial market in its own right.

The procurement profile should be particularly relevant for line pipe manufacturers, subsea valve suppliers, coating companies, flexible and umbilical manufacturers, cable suppliers, subsea structures, connectors, installation equipment and marine contractors.

It also strengthens COOEC’s rapidly growing position in Qatar. The company says its accumulated Middle East contract awards over the past three years have now exceeded RMB 50 billion, following major projects including Qatar’s BH EPIC and NFPS COMP5 developments.

Why QatarEnergy is spending

Maydan Mahzam is not a new discovery waiting to be developed. It is almost the opposite.

The offshore field has been producing since 1965, making it one of Qatar’s oldest producing assets. QatarEnergy is now investing in new platforms, upgrades, pipeline infrastructure and additional equipment to counter declining production and extend the productive life of the field.

That explains the unusually heavy brownfield element.

New equipment cannot simply be fabricated and installed independently. Contractors will have to integrate new facilities with infrastructure that has been operating for decades, creating additional demand for engineering, surveys, shutdown work, modifications, tie-ins and commissioning.

Where the money could go

Based on EPCIntel’s database of comparable offshore EPC contracts, the biggest supplier opportunities across the two packages are likely to sit in several broad areas.

For a combined contracting programme of this scale, offshore structures and fabrication could represent roughly 25% to 35% of capital spend, while process, mechanical and packaged equipment could absorb around 15% to 20%.

The extensive subsea scope could account for another 15% to 25%, particularly once pipelines, umbilicals, cables, coatings and installation are included.

Electrical, instrumentation, telecoms and control systems could represent around 8% to 12%, with offshore transportation, heavy lift, installation, hook-up and commissioning potentially accounting for another 10% to 15%.

These are indicative EPCIntel benchmarks rather than disclosed Maydan Mahzam contract values, but they illustrate the scale of the addressable subcontracting market.

The opportunity is only starting

The headline is that QatarEnergy has awarded two giant EPIC packages.

For suppliers, the more useful takeaway is what happens next.

PTSC M&C now has to turn more than 100,000 tonnes of offshore structures into an operating production system, while COOEC has to deliver a major subsea network around it.

With execution stretching toward the end of 2031, Maydan Mahzam should generate a long procurement tail across fabrication, equipment, subsea infrastructure, marine installation and brownfield services.

The big contracts have been awarded. The smaller contracts worth watching are about to follow.

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