Del-Sigma Petroleum Nigeria Limited
Is a wholly owned Nigerian indigenous Oil and Gas Exploration and Production company, with Headquarters/Operational base in Port Harcourt, capital of Rivers State. Del Sigma is a member of the Sigma Group, a Nigerian incorporated company that has contracted and provided technical services for Shell Petroleum Development Company (the Nigerian subsidiary of Shell), Total Nigeria, Chevron Nigeria, and for Elf Petroleum Nigeria. The technical services provided included maintenance services for the entire ELF OML 58 oil & gas production facilities as well as Engineering Design Services for Nigeria LNG Ltd; construction of 15 MVA Injection Sub-Stations and 33kv/11kv Overhead Lines for the Rivers State Ministry of Power/Shell Nigeria, amongst others.
In 2003 Del-Sigma Petroleum Nigeria Limited was awarded the KE Field (100%) in the Marginal Field Bidding Round and was therefore designated the Operator of the Field.

Dr. Soky Amachree
Managing Director/CEO
B.Eng [Mech] ABU; MSc Prod. Mangt. [Cranfield UK]; PhD Wales (UK); FNSChE
The Managing Director and principal shareholder of Del Sigma, Dr Sokeiprim Amachree, graduated with a B.Eng in Mechanical Engineering from Ahmadu Bello University on Shell B. P. Scholarship, and obtained an M.Sc in Industrial Engineering and Production Management from the Cranfield Institute of Technology (now Cranfield University) in the United Kingdom and PhD in Engineering Economics and Planning from Cardiff University, United Kingdom. Prior to forming Del Sigma to work as an independent Nigerian petroleum producer, he worked as Production Engineer for Elf Petroleum Nigeria Limited, where he was Production Engineer in charge of the Elf Obagi field, which produced 60,000 barrels of oil per day. Dr. Amachree is the inventor of the Community Oriented Production Strategy (COPS) Model - a Strategy for Peaceful & Hitch-Free Operation for Oil & Gas Fields in the Niger Delta in which the Host Communities are made to participate as Stakeholders in the business. Engr. Dr. Amachree has over 40 years of industrial experience in the oil and gas