History
From a Texas gas explorer called Sun Resources, the company chased Thailand, Texas oil and a Gulf of Mexico prospect, and by 2026 held South Australian hydrogen and helium licences.
2006-2008: Texas gas and a push into Thailand
Sun Resources NL, later renamed Prominence Energy, began 2006 with a $5.84 million raising at 18 cents and a small stake in several Texas Gulf Coast ventures. It held 10% of the Eagle Oil Pool, about 20-24% of the Flour Bluff gas project, and a share of the Margarita shallow gas wells. Results were mixed. Eagle North-1 showed oil pay on logs, but the test failed and a later repair attempt ended with the well suspended. Margarita produced gas discoveries at El Viejito, Dos Dedos, Dona Carlota and Agavero, though Climaco was dry. Lake Long #9, where Sun held 10%, flowed gas in 2007.
The company paid its way with a $2.2 million placement at 10 cents, a $1.99 million entitlement issue at 7 cents and a $2.46 million placement at 9.5 cents. Managing Director Bill Ashby resigned in October 2007, and Matthew Battrick took over from February 2008. The Raun #1 well in the Bondi-Coogee farm-in was plugged and abandoned. In January 2008 Sun and Carnarvon signed the Thailand L20/50 concession, 50% each, and in June 2008 Sun raised about A$4 million in convertible notes for it.
2008-2010: Thailand takes shape
In late 2008 the F1 well at Margarita began sales, lifting net production above 0.8 million cubic feet of gas a day. The Meek well in 2009 showed promising logs but never flowed commercially and was abandoned. Meanwhile Carnarvon's seismic on L20/50 produced 23 leads, and all nine environmental assessments were approved in September 2010. Peak Oil & Gas agreed to carry Sun through the first well, and a placement and share purchase plan at 6.7 cents lifted cash above A$8 million.
2011-2012: Dry holes and the turn to Texas oil
Both Thai wells, Tapao Kaew-1 and Krai Thong-1, found no hydrocarbons in early 2011. Chairman Dr Brad Farrell retired and Wolf Martinick took over. The Malta court also refused the joint venture's injunction against a government bidding round. Sun then pivoted to the Eaglebine and Woodbine oil plays in Texas, buying Delta Oil acreage with a raising of about $10.8 million at 1.7 cents. In 2012 it added Amerril leases for cash and shares, the Beeler wells and the Normangee project, and sold out of Thailand to Siam Moeco. Share issues, including placements at 5 cents, pushed the count from about 1.09 billion at the end of 2011 to 1.87 billion a year later.
2013-2015: Woodbine ambitions and collapse
Dr Govert van Ek became Managing Director in March 2013 and resigned in July 2014, and Battrick returned as chief executive. A Hancock Prospecting subsidiary invested $13.5 million at 3 cents in August 2013 and took 18.48%. Drilling disappointed: Seale #1H lost its drill bit, Davis #1 found thin sand, and Jack Howe #1H, the first operated well, showed about 250 feet of oil pay, though the frac still awaited a partner. A 2014 raising of about $10 million fell short at roughly $5.1 million. The half-year to December 2014 showed a $44.9 million loss, including a $43.9 million exploration impairment. Later raisings at 0.16 cents and 0.1 cents drove shares to about 5.4 billion by the end of 2015. A deal for Amerril to hand over its Normangee interests failed when Sun could not pay the US$2 million owed.
2016-2019: Restructuring and Bowsprit
The board was reshuffled repeatedly, with Ian McCubbing chairman from October 2016. A 25-to-1 consolidation in 2016 cut the shares from 5.97 billion to 238.7 million. A rights issue raised about $1.32 million. In 2017 a court ruling ended Sun's operatorship of Seale #1H, and it lost its only producing asset, SW Leona. Sun then won the Bowsprit lease in Louisiana, first half and later all of it, buying out partner Pinnacle for US$250,000 and a royalty. Small raisings at 0.4 and 0.2 cents funded permitting, and all three drilling permits were granted in November 2019. By the end of that year the company was called Prominence Energy.
2020-2023: Bowsprit fails and new bets
Independent auditors booked 330,000 barrels of Bowsprit reserves in February 2020. Funding was tight, with a 1-for-10 consolidation planned and a rights issue raising about A$1.2 million at 0.5 cents. A hydrogen deal with Patriot Hydrogen collapsed. Bowsprit-1, drilled in 2021, found no commercial hydrocarbons in the vertical section. A A$12 million placement at 1 cent then funded a 12.5% stake in the Sasanof gas prospect, but Sasanof-1 was dry in June 2022. Prominence won two Gulf of Mexico blocks holding the Big Apple prospect in 2023, which an independent review put at 1.37 trillion cubic feet of unrisked gas. A 1-for-20 consolidation came in June 2023.
2024-2026: Hydrogen and helium in South Australia
Prominence took a 20% stake in Umine LLP, a Kazakh uranium remediation company, and relinquished Bowsprit in April 2024. Hartshead Resources took 19.99% in September 2024, and Alex Parks retired as Managing Director. In 2025 the company bought Gawler Group Holdings, completed in December, with one awarded licence, PEL 803, and eight applications covering about 64,000 km². A $1.56 million placement at 0.22 cents in May 2026 funded geophysics. Soil gas tests showed helium up to 63 parts per million and hydrogen up to 3,427. As of July 2026 the company was preparing a Native Title agreement with the Arabana for four Northern Hinge applications and targeting drilling in mid-2027, with the Big Apple farm-out, the Umine permit and other matters unresolved.
Written from the 190 story beats below (2006 to 31 July 2026), which come from the company's own announcements and filings.