Helios Energy Limited (ASX:HE8) is an Australia-based onshore oil and gas exploration company focused on the development of unconventional resources in the United States. The company holds 66,776 gross net acres in the Presidio Oil and Gas Project located in Presidio County, Texas, targeting oil and gas production from existing wells, new drilling locations, and resource delineation activities; it previously operated a helium exploration segment in China. Helios Energy generates revenue primarily from oil sales and maintains operations segmented into oil and gas exploration in the USA. Founded in 2010 and headquartered at 295 Rokeby Road, Subiaco, Western Australia, the company listed on the ASX in October 2010 under prior names including New Horizon Coal Ltd until 2017. Recent developments include a 2024 capital raise through placement and entitlement offer to fund Presidio advancement and short-term liquidity; engagement of W.D. Von Gonten Engineering yielding a January 2025 1C Contingent Resource estimate of 13.3 million barrels of oil equivalent (mmboe), with 3C potential of 21.7 mmboe; re-leasing of lapsed acreage to expand its over 100,000-acre play area; leadership upgrades for operational execution; and adoption of an updated constitution in November 2025 alongside annual general meeting results.