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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 was formed in 2011 following the merger of AOS (Africa Oilfield Services Ltd) and Orwell Oil & Gas International.

AOS Ltd was founded and registered in the Federal Republic of Nigeria in 1981 and is recognised as West-Africa's leading provider of Downhole Drilling Tools, Fishing Services and Wireline Pipe-Recovery Services to the Oil & Gas industry. AOS also provided fully API certified Machine-Shop Services and has a reputation for providing experience, expertise and top of the range dependable, reliable and 'fit for purpose' technology.

In 1992 AOS established its Wireline Division and has more than 200 man years of field experience in Wireline Pipe Recovery. and is renowned for its expertise in this domain. Through a series of joint ventures and partnerships established with international "Blue-chip" OEM's, AOS has extended its portfolio of technology introduction into West Africa.

Orwell International (Oil & Gas) Nig Ltd was previously a member of the Orwell Group in Aberdeen, one of the largest independent equipment rental companies in Europe. It became a privately owned indigenous company in 2000 and continued to grow in both size and reputation to become one of fastest growing indigenous oilfield service company in Nigeria.

AOS Orwell now operates from a main head office and operating bases in Port Harcourt. These facilities provide a combined area of more than 64,000 square meters.

Sales, technical support and liaison services are provided through a sales office in Victoria island, Lagos.

AOS Orwell has also started operations and has bases in Ghana and Uganda.

Our foundations

  • True local talent
  • Real technology transfer
  • Unrivalled people development
  • Service delivery excellence

We always work in a safe, environmentally conscious and socially responsible manner.

Based on these criteria we will ensure strong growth and secure superior profits for all of our stakeholders.


  • 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