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AOS Orwell is a merger of two
Nigerian-based oil service companies,
forming the largest indigenous services
company in the region.

Everything you need
for offshore, land and
swamp drilling, remedial
and production.

Corporate Overview


AOS Orwell Limited (AOSO) is an indigenous Oil Servicing Company engaged in the business of Well Construction, Welding Fabrication and Machining, Process Automation and Conductor Casing & OCTG Manufacturing across sub Saharan Africa. Formed in 2011 as a result of a merger between Africa Oilfield Services (AOS) and Orwell International Limited, the company has grown her capacity to offering numerous products and services. With the advent of the Nigerian Content initiative, AOSO has recorded unrivalled local content success by being the first Nigerian company to locally assembly PDC drillbits in 2010, establish the first Fishing training school in 2010; open the first HE/NOV drilling jar certified service shop in 2011; own the largest indigenous conductor casing and welding fabrication shop in 2012; build the first instrumentation cabinet assembly plant in 2013; launched her Valve repair and maintenance center in 2014 and first metering skid facility in 2015. AOSO is ISO 9001 certified by the British Standard International. This was first achieved in 1997 thus making the company committed to high quality and safe operational practices for over 16 years.

AOSO has built on this experience and now is the partner of choice for numerous OEMs such as Emerson, NOV, Tercel, FMC, Enventure, SDI, DSI-PBL, Hoerbiger, Det-Tronics, 3P Services, Metal One, Oil States International, Wetserton, Larsen & Toubro and EATON. This product line diversity has enabled AOSO to compete with the biggest internationals. Ultimately the company objective is to understand, to deliver and to exceed expectations of all clients.

The strength of the company resides in the strong management and enthusiastic personnel in place, thus the company is primed to continue to partner with operators in the industry.

With on-ground operations in Port Harcourt, Onne, Lagos, Accra and Takoradi numerous product and service offering, we are always proud to say

...Proudly Indigenous, Delivering World Class Solutions


  • 1981- Company Establishment
  • Sub Sahara ambition with foot prints in Ghana and Uganda
  • Private Company with majority Nigerian shareholding and private equity funding
  • 2011- Acquisition of ECNL business in Nigeria.15years legacy.
  • 2012 – Acquisition of OAL & TTNL Nigeria Machine Shop at Onne
  • Robust Service portfolio (>15 Services) and technical competence
  • ISO 9001.Certified by British Standards International
  • Excellent QHSEE Practices & Records
  • TRACE Certified. FPAL Accredited & Registered.
  • Strong capital base and Sound financial principles –IFRS
  • Strong Management & Solid Corporate Governance