Management
Our management team has extensive experience in delivering large and complex projects in Kazakhstan, supported by decades of collective technical, operational and sector knowledge.

Arfan Khan
Chief Executive Officer
Mr Khan has over 30 years’ experience in the oil and gas industry. A qualified petroleum engineer, he has held various operational and senior management positions in the industry throughout his career, including positions with ExxonMobil in the US and roles at Shell, Enterprise Oil and Maersk Oil. Mr Khan also has strong emerging markets experience, having held operational roles in Nigeria, Angola and Kazakhstan, where he acted as Kashagan Well, Reservoir and Facilities Manager whilst with Shell. As Chief Operating Officer, Executive Director and Special Advisor to the Chairman and CEO at Amni International Petroleum from 2014 to 2019, Arfan oversaw strategic growth plans and fundraising programmes. Most recently he has served as President and Managing Director of Stratum Energy Group.

Arfan Khan
Chief Executive Officer
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Martin Cocker
CHIEF FINANCIAL OFFICER
Non-Executive Director
Mr Cocker was appointed as an Independent Non-Executive Director on 16 November 2017 and then as interim Chief Financial Officer on 1 April 2020. Mr Cocker is a chartered accountant with over 35 years’ business experience. He has held several line management, project leader and CEO level positions with Deloitte & Touche, KPMG, Ernst& Young and Amerada Hess. He is currently also an Independent Non-Executive Director and chairman of the audit committee at Etalon Group PLC, HeadHunter Group PLC and TCS Group Holdings PLC, all of which have their main operations in Russia. Etalon Group PLC and TCS Group Holdings PLC are listed on the London Stock Exchange; HeadHunter group PLC is listed on NASDAQ.

Martin Cocker
CHIEF FINANCIAL OFFICER
Non-Executive Director

Robert Tinkhof
Chief Operating Officer
Mr. Robert Tinkhof joined Nostrum Oil & Gas as its new Chief Operating Officer in February 2019. Prior to this he has held several senior management positions, most recently as Managing Director at the Scientific Research Institute of KMG for Production & Technology in Kazakhstan. Mr. Tinkhof has more than 30 years of experience in the oil and gas industry mainly with Royal Dutch Shell with assignments in the Netherlands, UK, Syria, Iran, Egypt, Iraq and Russia.

Robert Tinkhof
Chief Operating Officer
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Arkadi Epifanov
Chief Commercial Officer
Arkadi Epifanov is Chief Commercial Officer, as of Friday 13 January 2017. Prior to this, he was appointed as marketing consultant of Zhaikmunai LLP in 2009. Mr Epifanov has over 20 years experience in senior management and directorial positions in the oil and gas industry, having held positions in Nafta, Transoil, Lukoil, Litasco and Baltic Oil Terminal. He has worked in the oil sector across diverse regions including Finland, Belgium, Romania, Russia, Switzerland, The Netherlands and the British Isles. Mr Epifanov holds qualifications in economics from Leipziger University.

Arkadi Epifanov
Chief Commercial Officer
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Daulet Tulegenov
Group QHSE Manager
Daulet Tulegenov was appointed as Head of QHSE Department on 1 October 2018. Mr Tulegenov has over 15 years experience working in both onshore and offshore E&P, and has taken part in major projects for Chevron, Shell, Lukoil, Tengizchevroil and CNPC companies in Kazakhstan. He is a graduate of Tyumen State Oil & Gas University, Russian Federation.

Daulet Tulegenov
Group QHSE Manager
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Thomas Hartnett
Chief Legal Officer, Company Secretary and Acting Head of Human Resources
Thomas Hartnett was appointed as General Counsel of Nostrum Oil & Gas on 5 September 2008, as Company Secretary on 3 October 2013 and as Acting Head of Human Resources on 13 January 2020. Mr. Hartnett was previously a partner in the international law firm White & Case LLP, where he focused on cross border corporate and mergers and acquisitions transactions. He worked in the firm’s New York, Istanbul, London, Brussels and Bangkok offices over a 16-year period. Mr. Hartnett also served as Senior Corporate Counsel for Intercontinental Hotels Group from 1996 to 1998. He is a graduate of the University of Pennsylvania and New York University School of Law and is a member of the New York Bar.

Thomas Hartnett
Chief Legal Officer, Company Secretary and Acting Head of Human Resources
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