OGS has been a trusted consulting and services company to energy companies. The firm has rapidly grown and found its place in the market as a trustworthy and reliable firm.

We provide in-depth analysis and future projections that form the basis for strategy development, action & operations plans, investment evaluation and commercial decisions on the regional scale. We also offer our clients a combination of advisory, tailored consulting and operations services to meet their needs. First we listen, and then we act decisively on time.
OGS Team is made up of experienced professionals dedicated to providing superior value to our clients. OGS combines deep regional knowledge with a broad understanding of industry interactions, providing clients with a comprehensive analysis of environments and risks. We are committed to excellence – high quality professional services, ethical working relationships and continuous improvement. We are quite aware to make the best decision to ensure our client’s best interests.
Ömür Özavcı is the Founder and Chief Executive Officer of OGS.
He is a Petroleum and Natural Gas Engineering graduate of Middle East Technical University (METU) with more than 30 years of global petroleum engineering and executive leadership experience.
His areas of expertise include reservoir engineering, integrated field development, drilling and workover operations, production optimization, reservoir management and reserves evaluation, enhanced oil recovery, economic evaluations, international project management, and strategic business development.
Under his leadership, OGS has delivered more than 60 field development and operational support projects worldwide, including turnkey drilling and workover campaigns, integrated field development projects, surface facility development projects, production enhancement programs, reservoir studies, and large-scale project management assignments for leading national and international operators including SOCAR, BP, Chevron, TPAO, PDVSA, Genel Energy, Dubai World, BGN Energy, and Petoil.
Prior to establishing OGS, Mr. Özavcı held various leadership positions with international operators and service companies across Turkey, Azerbaijan, Iraq, Kazakhstan, Libya, Turkmenistan, Ukraine, and the UAE. His career spans both offshore and onshore environments, where he played a key role in increasing production from mature fields through waterflooding and enhanced recovery initiatives, managing multi-million-dollar development programs, conducting reserves evaluations, and improving asset values through technical optimization.
Guided by OGS's philosophy, "What we promise, we do", Mr. Özavcı is committed to safe, reliable, and value-driven delivery by combining technical excellence, operational discipline, and long-term partnership to support clients in complex energy environments.