The Greens party in Australia is intensifying pressure on the Labor government to impose a 25% export tax on gas, leading to an inquiry that may require the testimony of CEOs from major companies like Santos, Woodside, Chevron, and Shell. This inquiry, set to take place in Canberra and Perth, aims to investigate the export tax settings amid soaring gas prices driven by the geopolitical tensions from the US and Israel's actions against Iran. Labor's support for the inquiry follows reports that the prime minister's department consulted Treasury on modeling the potential impacts of a flat tax on gas exports, as well as revisions to the petroleum resource rent tax (PRRT) and corporate income tax regulations. Advocates for the tax, including unions and social service groups, argue it could generate up to $17 billion for the budget. However, Labor is cautious about implementing broad tax changes due to concerns over maintaining fuel imports and international trade relationships, particularly with key Asian partners. Greens senator Steph Hodgins-May emphasized the need for transparency from gas companies regarding their profits and tax contributions. Meanwhile, the Greens Institute has released research indicating that gas exporters could see profits exceeding $78 billion by 2026, advocating for stricter windfall profit taxes that could yield between $28 billion and $57 billion. Prime Minister Anthony Albanese remains non-committal about changes to gas tax settings, citing the upcoming budget as a priority.