Board of Directors

  • Salim Macki, Chairman of OOSC Group of Companies holds a Master’s Degree in Petrochemical Engineering from Moscow. He became the first Omani Petroleum Engineer in PDO and later served as Director General of Oil and Minerals. Macki was an Ambassador with the Ministry of Foreign Affairs, Government of Sultanate of Oman. He spent most of his working life in the oil and gas industry, where he is highly regarded internationally. He holds, or has previously held, many senior executive positions in various private and state owned entities in Oman and internationally, among them as a board member of Oman Oil Company, chairman of Oman India Fertilizer Company (OMIFCO) and board member of the Caspian Oil Pipeline (CPC). It was after Macki left the Ministry of Oil and Gas, that he started his own business in the oil related sector in 1974 - Oman Oilfields Supply Center LLC (OOSC).

    Today, the OOSC Group of Companies has over 10,000 employees and Macki believes that one of the main reasons behind his success, besides education and opportunities, is the fact that he stayed in the business he knew best. STS was established in 1980 as a member of the OOSC group of companies, to provide specialist oil & gas field maintenance services. The STS Group is a leading multidisciplinary contracting group specialising in construction, manufacturing and maintenance services for the energy and industrial sectors, and has operations through the Gulf and Australia.

  • Basil Macki had his early formative years of schooling in the UK. Later, he earned himself a scholarship from Petroleum Development Oman (PDO) to obtain a Master's degree in Mechanical Engineering from the Imperial College of Science, Technology and Medicine, London.

    Graduating from Imperial College in 1996, a young Basil came back to work in PDO as a Mechanical Construction Supervisor where he was positioned in Marmul for over 18 months. This was the beginning of a long association with PDO which he considers his alma mater. It was this experience that influenced Basil to adopt a hands on participative style of management later.

    The quest for knowledge and previous experiences drove him to take on an assignment as Process Engineer with Shell Holland in 1998. During this time, he completed his Master's degree in Business Administration from the reputed Dutch Business School, Nyenrode University.

    Oman beckoned, with Basil joining the family business OOSC as Head of Oilfield Marketing. After four years of successfully managing this portfolio, in 2004 he was appointed Managing Director of OOSC Group in addition to Managing Director of STS. During this period, STS has grown exponentially under his leadership from an employee base of 500 to a strength of over 10,000 permanent employees when in late 2013 when he handed over the reigns of STS to Alex Clark as Chief Executive Officer.

  • Hannah Macki holds a Bachelors in Business Management from the Kings College London as well as Masters in Business Administration from Imperial College London.

    She has over 14 years of working experience in the real estate management, development and hospitality sectors in the UK and Oman, including oversight of Finance, IT and HR from a management perspective.

  • Alex Clark has over 25 years of experience in the Oil and Gas, Petrochemical, Heavy Industrial, and mechanical engineering construction industries with particular expertise in executive and general management.

    He is currently the MD of Special Technical Services (STS), prior to which he was STS CEO. He has a degree in Civil Engineering from the University of Sydney and a Master's in Engineering Management from the university of NSW.

  • Michael has over 25 years of experience in a variety of senior investment, financial and professional practice roles leading key professional engagements and challenging corporate projects. He has broad experience in financial management, strategic planning, corporate finance, treasury, asset management and corporate governance.

    As Group CFO at Oman Oilfield Supply Center LLC (OOSC), he is responsible for group finance, corporate finance and investment management. Prior to joining OOSC he worked with an oil & gas EPC in the UAE as CFO primarily to prepare the organization for a public listing and before that with a prominent Abu Dhabi family conglomerate as Group CFO and CEO Investments.

    In professional practice Michael has worked with Deloitte in Saudi Arabia, the UAE and Oman as a director and was a senior specialist in the Deloitte Middle East Energy Practice. Before coming to the Middle East, Michael worked for a number of medium sized firms in Ireland and Irish Life Assurance Plc.

    Michael is a fellow of ACCA, having qualified in 1998 and is presently a member of the Oman Members Advisory Committee. He was previously vice chairman of the UAE Members Advisory Committee. He is an associate member of the Association of Corporate Treasurers since 2006 and is a member of the ACT Middle East Committee. Michael is a member of the Global Irish Network.

  • A professional Mechanical Engineer with 25 years of experience, of which 20 years has been in the Middle East, in leadership, management and functional roles. Rejeesh’s key skill sets include stakeholder management, legal and contracts, and commercial management. His area of technical expertise includes fabrication, manufacturing, construction and maintenance of upstream and downstream Oil & Gas facilities.

    Rejeesh Mani is currently the Chief Executive Officer of Special Technical Services (STS) encompassing operational and financial responsibility. He possesses an EMBA in Project Management from MG University India and has successfully completed the TGM (Transition to General Management) executive program from INSEAD, Fontainebleau Cedex, France.

  • Krishnan is a qualified Chartered Accountant and a Graduate from the Institute of Cost & Works Accountants of India.

    Over the past 20 years, Krishnan has worked for leading Oil & Gas corporates in varied capacities in the field of Finance. He also has extensive experience in Treasury Management, Cost Control, Strategic Planning and Corporate governance.

    Krishnan is responsible for Finance, Accounting and Procurement functions and also has functional responsibility for Commercial activities of the STS Group of Companies. He is currently holding the position of Chief Financial Officer.