The Allmarc 3D model of an onshore oil and gas site: flares, process units, pipe racks, tanks and loading

Home
Oil & Gas

Oil & gas fabrication

Flare systems, fabricated to your drawings.

Enclosed ground flares, elevated stacks, seal and knock-out drums, derricks and the plant steel around them, for the engineering contractors who design them.

Explore the range Send us a drawing

In the sector since 2025

We are the fabricator, not the licensor.

The combustion design, the burners and the tip are yours. We turn the drawings into steel at scale, to specification, with the documentation an export project needs.

That division is deliberate: we do not compete with the companies who send us work. We fabricate for more than one of the global flare licensors, and both rely on the same works.

0flare chambers exported

0per chamber, built in our bay

0first ground flare, order to delivery

0product lines

What we build

Across the whole flare package.

Combustion chambers built as a kit.

Large-diameter chambers in numbered ten-panel courses on an internal column and ring-girder frame: assembled to full height in our bay, then insulated and packed for export.

See enclosed ground flares

Stacks delivered as numbered sections.

Self-supported risers stepped with height, flanged inside the shipping limit, with pilot and purge lines, ladders and platforms fitted in the works.

See elevated flare stacks

The pressure parts of the package.

Liquid seal drums with gusseted flanges and dished baffles, and knock-out drums on their own skids, fabricated and tested alongside the flare.

See seal & knock-out drums

The steel that holds a flare up and in.

Bolted lattice derricks, galvanised and trial-assembled, and the wind fences that screen ground flares from the plant.

See derricks & enclosures

Racks, skids and modules.

Multi-tier pipe racks, process skids and modules built as one package, and the access steel that goes with them.

See plant structures

How the industry works

Onshore and offshore, end to end.

Oil and gas are found and produced on land or at sea, moved by pipeline and ship, and refined into products. Every stage stands on fabricated steel. This is where ours goes; HSE and access steel runs through all of it.

On land 01 Upstream onshore Well sites, land rigs and field production.
Wells are drilled from land rigs, then produced through wellheads, skids, separators and compressors on the well pad, with flares and stacks to handle what cannot be sold.
20 products
At sea 02 Offshore & marine Platforms, subsea, jack-ups and jetties.
At sea the same work sits on jackets and topside modules, or on the seabed; jack-up and spud barges drive the piles for platforms, jetties and bridges.
26 products
On land and at the coast 03 Midstream Pipelines, stations, storage and terminals.
Oil and gas move by pipeline through compressor, pumping and metering stations to tank farms and terminals, and are loaded onto trucks, wagons and ships.
24 products
On land 04 Downstream Refining, petrochemicals and gas processing.
Refineries and petrochemical plants are forests of structural steel: process structures, columns, heaters, exchangers and the flare systems that keep them safe.
30 products

The whole plant, in 3D

Everything we build, connected.

An onshore site and an offshore field, assembled from the same models as our product pages. Follow the oil, gas and flare lines from the well to the tanker; hover any steel to see what it is, click to open its page.

By segment

From the well to the refinery, on land and at sea.

Upstream onshore: well sites, land rigs and field production.

Wells are drilled from land rigs, then produced through wellheads, skids, separators and compressors on the well pad, with flares and stacks to handle what cannot be sold.

Offshore & marine: platforms, subsea, jack-ups and jetties.

At sea the same work sits on jackets and topside modules, or on the seabed; jack-up and spud barges drive the piles for platforms, jetties and bridges.

Midstream: pipelines, stations, storage and terminals.

Oil and gas move by pipeline through compressor, pumping and metering stations to tank farms and terminals, and are loaded onto trucks, wagons and ships.

Downstream: refining, petrochemicals and gas processing.

Refineries and petrochemical plants are forests of structural steel: process structures, columns, heaters, exchangers and the flare systems that keep them safe.

The full range

Everything we fabricate for oil & gas.

Flare & Combustion

Enclosed ground flare chambers EGF Combustion Chambers Flare & Combustion

Stepped risers in flanged sections Elevated Flare Stacks Flare & Combustion

Burner headers and risers MPGF Manifolds & Structures Flare & Combustion

Large-bore spools feeding the flare Flare Header Spools & Supports Flare & Combustion

Bolted lattice towers Flare Support Derricks Flare & Combustion

Screens round ground flares Wind Fences & Enclosures Flare & Combustion

The water seal that stops flashback Liquid Seal Drums Flare & Combustion

Separation vessels on skids Knock-Out Drums Flare & Combustion

Gas seals in the flare stack Molecular Seals Flare & Combustion

Enclosed stacks for terminals Vapour Combustion Units Flare & Combustion

Rolled, stiffened shells Thermal Oxidizer Shells & Stacks Flare & Combustion

Casings, convection modules, stacks Fired Heater Casings Flare & Combustion

Shells, bends, expansion joints Stacks, Silencers & Ducting Process Plant & Midstream

Multi-tier racks, trial-assembled Pipe Racks & Access Platforms Process Plant & Midstream

Supports for piping integrity Pipe Supports, Shoes & Brackets Process Plant & Midstream

Built as one package Process Skids & Modules Process Plant & Midstream

Base frames for pumps and piping Pump Skids Process Plant & Midstream

Steel round vessels and exchangers Equipment Support Structures Process Plant & Midstream

Multi-level structures for process units Refinery Process Structures Process Plant & Midstream

Access round distillation columns Column Platforms & Ladders Process Plant & Midstream

Bays, plenums and fan decks Air-Cooled Exchanger Structures Process Plant & Midstream

Frames and saddles for exchangers Heat Exchanger Frames & Supports Process Plant & Midstream

Structural steel for tank farms Storage Tank Supports & Wind Girders Process Plant & Midstream

Walkways between tanks and pipe runs Catwalks & Tank-Farm Walkways Process Plant & Midstream

Loading racks and fall-protection gangways Truck Loading Gantries Process Plant & Midstream

Gantries along the siding Rail Loading Gantries Process Plant & Midstream

Steel superstructure for jetties Marine Loading Platforms Process Plant & Midstream

Structural frames for compressor housing Compressor Station Frames Process Plant & Midstream

Frames and housings for metering skids Metering Station Enclosures Process Plant & Midstream

Skid and trailer frames for pump sets Mobile Pump System Frames Process Plant & Midstream

Housings for flow and pressure equipment Protective Equipment Housings Upstream & Offshore

Bases for wellhead and control equipment Wellhead Bases & Control Frames Upstream & Offshore

Rotating-equipment skids Compressor, Pump & Generator Skids Upstream & Offshore

Towers for stacks and exhausts Chimney & Exhaust Support Structures Upstream & Offshore

Filter houses and ducting Air Intake Ducts Upstream & Offshore

Landing-pad support structures Helideck Frames Upstream & Offshore

Equipment-housing frames, built in sections Topside Module Frames Upstream & Offshore

Truss bridges that join one platform to the next Platform Link Bridges Upstream & Offshore

Offshore sub-structures, fabricated to design Jackets, Legs & Braces Upstream & Offshore

Drilling derrick bases and substructures Derrick Sub-structures Upstream & Offshore

PLET-type frames, mudmats and protection roofs Subsea Structure Frames Upstream & Offshore

Landings, bumpers and riser protection on jackets Boat Landings & Riser Guards Marine Construction

Legs, jacking units and leg wells for construction barges Jack-Up Barges Marine Construction

Pin-and-yoke units that climb the legs Hydraulic Jacking Units Marine Construction

Rolled legs with pin holes, and their footings Jack-Up Legs & Spud Cans Marine Construction

Gripper frames that hold piles while they are driven Pile Manipulators Marine Construction

Spuds, wells and gantries that hold a barge on station Spud Barges: Spuds & Spud Wells Marine Construction

Templates that set out raked jetty piles Pile Guide Frames & Templates HSE & Access

Access steel with Grip-Strut Stair Towers & Platforms HSE & Access

Modular, reconfigurable platforms Multi-level Access Platforms HSE & Access

Ladders with cages; railings with kick plates Caged Ladders & Railings HSE & Access

Grip-Strut, R13 Anti-Slip Grating HSE & Access

Anchor points and horizontal lifelines Fall-Protection Anchor Structures HSE & Access

Screens for high-elevation walkways Wind Shields for Walkways

From our works

Built in courses, proven before it ships.

The internal frame goes up to full height in our bay, so fit-up is proven before the shell goes on. Finished panels leave in export frames, marked course by course for the rebuild on site.