PESA SA/NT June Luncheon
Guest Speaker(s): Sharon Tiainen, Senior Principal Geologist Energy Resources
Sharon Tiainen is a graduate of the University of Adelaide and has an Honours degree in Petroleum Geology and Geophysics. She has over 25 years of experience in the upstream oil and gas industry working in exploration, appraisal, development, and production roles for major, independent, and small companies, and as a consultant. She has worked acreage in Algeria, Austria, Australia, Ecuador, Germany, India, Libya, Malaysia, Morocco, Myanmar, the Netherlands, Norway, Papua New Guinea, Pakistan, the Philippines, Romania, Tunisia, Turkey, the UAE, and the United Kingdom. In 2009 she established her own company and most recently she joined the South Australia Department for Energy and Mines and is a member of PESA and SPE.
PESA SA/NT June Luncheon
“Understanding exploration success and failure in the Cooper and Eromanga Basins, South Australia”
Sharon Tiainen
DEM
Abstract:
Looking back at open-file well and production data provides an historical account of exploration success and failure in the Cooper and Eromanga Basins in South Australia. While the largest gas fields in the Cooper Basin were found early, this pattern does not hold for oil in the Eromanga Basin. The Western Flank oil discoveries followed the entry of new operators and new licences. Despite the basins’ maturity, some areas remain underexplored, for example, the Nappamerri Trough has no dedicated oil wells despite being similar in size to the Western Flank. The look back highlights the value of ongoing acreage releases, which promote data refresh, competition, and the discovery of overlooked oil and gas potential.
Event Details:
Thursday, 25th June 2026
Luncheon: 12 pm for a 12:30 pm start
Place: Ayer’s House, 288 North Tce, Adelaide
The luncheon will consist of 2 courses and drinks
Bookings close 5 pm Monday, 22nd June 2026
Any late bookings will incur an additional $20 fee. Strictly no walk-ins.
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