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Petrosys Pty Ltd and Controlled Entities

Petrosys is the industry leader in mapping, surface modeling and data management software solutions – delivering direct connectivity with the E&P industry’s most popular exploration, production and GIS data sources. Petrosys produces high quality maps and surface models. It manages, edits, and analyses the underlying information including the specialised seismic, well and geoscience data used in the search for oil and gas. Geoscientists, data managers and engineers at more than 300 sites worldwide use Petrosys as an essential tool for basin and field interpretation, to enhance enterprise data management and to help make better decisions.

Corporate Structure

Petrosys Pty Ltd, the parent company in the Petrosys group, is a privately-owned company based in Adelaide, South Australia, where Petrosys was originally founded in 1984.

Petrosys supports its global customer base via its Australian parent company and its wholly-owned subsidiaries:

  • Petrosys USA, Inc (Texas, United States);
  • Petrosys Mexico S.A.P.I. de C.V. (México DF, México);
  • Petrosys Canada, Inc (New Brunswick / Alberta, Canada);
  • Petrosys Europe Limited (Scotland, United Kingdom); and
  • Petrosys Asia Sdn Bhd (Malaysia).

Background and Experience of Directors

All companies in the Petrosys group share the following Board of Directors:

Dr. Volker Hirsinger B.Sc (Hons), PhD (Structural Geology)

Executive Director

Dr. Hirsinger is a founder of Petrosys Pty Ltd. He holds a Bachelor of Science (Hons) and PhD in Structural Geology. Dr. Hirsinger held positions at Western Mining, Woodside Petroleum and Santos Ltd, before participating in the founding of Petrosys Pty Ltd in 1984.

Dr. Hirsinger has taken a central role in both the development of Petrosys software products and the senior management of the company. He served as Group Managing Director from 1999 to 2015. Dr. Hirsinger also plays an active role in industry activities, and served as a member of the Board of PPDM from 2010 to 2013.

Since 2010 Dr. Hirsinger has been a resident of Houston, Texas, where he now holds the position of Vice President – Americas.

Mr. Michael A. Trenerry LL.B


Mr. Trenerry holds a Bachelor of Laws from the University of Adelaide. Mr. Trenerry was a partner in the Adelaide law firm Bonnin & Partners for 20 years before retiring from legal practice in 1988. He has been an advisor to Petrosys since its formation and a non-executive Director of the company since 2005. He was appointed Chairman of the Petrosys Group in April 2014.

Mr. Trenerry is founder and current principal of business advisory firm Blueprint Australia – providing advice to a range of commercial clients regarding corporate planning, acquisitions, divestments, mergers and reconstructions.

Mr. Michael Mansfield Brumby B.Sc (Hons)

Executive Director

Mr. Brumby holds a Bachelor of Science (Hons) in Geophysics. Mr. Brumby was originally employed at Western Mining Petroleum as a seismic interpreter. In 1987 he relocated to Perth to work in the Timor Sea group and was involved in the drilling of exploration wells in that region. 5 years later, Mr. Brumby joined Petrosys to support, sell and market software in the Australian region. Mr. Brumby has been actively involved at all levels of the company since that time.

Mr. Brumby is currently based in Kuala Lumpur, Malaysia. In addition to his role as an Executive Director, Mr. Brumby holds the position of Sales Manager – Middle East and Asia Pacific for Petrosys.

Mr. Craig Farrow B.Ec, DipFS, CPMgr, SA Fin, FAIM, FAICD, FCA

Non-executive Director

Mr. Farrow is a Chartered Accountant and Chairman of the accounting firm Brentnalls SA. Mr. Farrow qualified as a Chartered Accountant in 1994. His particular areas of expertise are providing business advisory services to small to medium enterprises, including chairing and acting as an adviser to various private and public company boards, focussing on strategy, governance and financial performance. Mr. Farrow was involved with the foundation in 1999 of M2 Telecommunications Group Ltd and is now Chairman of that company. M2 listed on the Australian Securities Exchange in 2004.

Mr Farrow is also Chairman of Tonkin Consulting, an engineering practice, and Australian Independent Rural Retailers Pty Ltd, a National Rural Merchandise Wholesaler.

In 1999 he was awarded the Institute of Chartered Accountant’s National President’s Award for Service to the Institute and the profession and is a Fellow of the Governor’s Leadership Foundation. Mr Farrow is a past president (2012) of the Institute of Chartered Accountants in Australia and he led the ICAA/NZICA merger project as Executive Chairman in 2013. He is also director of numerous private entities across agribusiness, health and consulting.