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.

Atul Gupta
Interim Chief Executive Officer
Executive Chairman
Atul Gupta was appointed as Chairman of Nostrum Oil & Gas on 25 April 2017 and Executive Chairman on 27 November 2018, having previously served as a Director of the Company since 30 November 2009 and Chairman of the Audit Committee since 31 December 2016. Mr Gupta has worked for 25 years in the international upstream oil and gas business with Charterhouse Petroleum, Petrofina, Monument and Burren Energy. Mr Gupta joined Burren in 1999 as Chief Operating Officer and served as its Chief Executive Officer from 2006 until the company was sold to ENI in 2008. Mr Gupta has a degree in chemical engineering from Cambridge University and a Masters in petroleum engineering from Heriot Watt University, Edinburgh.

Atul Gupta
Interim Chief Executive Officer
Executive Chairman

Martin Cocker
CHIEF FINANCIAL OFFICER
Non-Executive Director
Mr Cocker was appointed interim CFO with effect from 1st April 2020. Mr Cocker was appointed as a Director on 16 November 2017. Mr Cocker is a chartered accountant with over 30 years’ business experience. He has held several line management, project leader and CEO level positions and currently is an Non-Executive Director and chairman of the audit committee at Etalon Group PLC and TCS Group Holdings PLC, both of which are Russia-based entities listed on the London Stock Exchange, at a UK National Health Service Foundation Trust and at a UK Building Society. Mr Cocker is a member of the investment committee of Pride Capital, and previously held senior positions with Deloitte & Touche, KPMG, Ernst & Young and Amerada Hess.

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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