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D.O. Okwuise & Co Limited delivers oil tools maintenance, engineering construction, piping, corrosion control, instrumentation, civil works, fabrication, logistics and procurement — one accountable contractor across the full oilfield scope.
Play Company VideoD.O. Okwuise & Co Limited is a Port Harcourt-based oilfield services company, dedicated to providing safe, compliant and efficient maintenance, engineering and procurement solutions to the oil and gas industry.
Precision at every valve and connection
From oil tools maintenance and flowline construction to instrumentation, fabrication and procurement, we provide a full range of oilfield services with a professional approach and measurable results.
Every engagement — maintenance, engineering or procurement — follows the same disciplined process, so you always know where your project stands.
We visit site, review the equipment and specifications, and define scope, budget and timeline together.
Our engineers finalise the work plan while our procurement desk sources compliant, cost-effective equipment.
Certified crews execute to specification, with HSE checks and progress reporting at every milestone.
We test, commission and hand over with full documentation — then stay on for maintenance and support.
We've delivered oilfield maintenance, engineering and procurement scopes for operators across Nigeria's oil and gas sector.
“D.O. Okwuise handled our valve and pump overhaul in phases so production never stopped. Communication was clear from day one.”
Maintenance Manager
Onshore Production Facility
“The flowline construction and tie-in came in on schedule, with every test and inspection documented properly.”
Project Engineer
Regional Flow Station
“Having maintenance, engineering and procurement under one contractor removed a lot of the back-and-forth we used to deal with.”
Procurement Lead
Offshore Support Base
Talk to our team about oilfield maintenance, engineering construction or procurement — we'll respond with scope, timeline and next steps.
Everything you need to know about our services and project process. Can't find the answer you're looking for? Reach out to our team directly.
We provide oil tools maintenance, engineering construction, piping, corrosion control, instrumentation, civil works, fabrication services, logistics and general procurement for the oil and gas industry.
We are based in Port Harcourt, Rivers State, Nigeria, and we operate across onshore oilfield facilities, flow stations, storage terminals and support bases in the region.
Yes. Alongside scheduled preventive maintenance, our teams provide rapid-response repair for pumps, valves and other critical oilfield equipment.
Every project runs against a documented quality plan and HSE protocol, with certified crews, scheduled inspections, and full testing and commissioning before handover.
Yes — our teams are structured to run multi-phase oilfield projects, and we scope resourcing to match project size and timeline.
Yes. Our procurement desk sources locally where it's faster and more cost-effective, and internationally where local supply doesn't meet specification — always with transparent landed costs.
Yes. We offer scheduled preventive maintenance and rapid-response contracts for oilfield tools and equipment after handover.
Use the contact form on this site, call or WhatsApp us directly, or email info@dookwuise.com with your scope and we'll respond with next steps.
