Investor Presentaiton

2023 Alaska Investor Trip Welcome to Alaska An attractive place to find and develop oil Supportive Business Environment • • The oil and gas industry remains the single most important economic engine in the state The oil industry has been the largest state taxpayer for over 40 years Santos team highly experienced in operating in the Alaskan regulatory environment Well-Established Super Basin: Emerging Play- Fairways Material Discoveries with Low Development Cost Extensive Infrastructure In- Place · • One of the world's most active conventional oil basins Over 18 billion barrels of oil produced to date Several emerging play-fairways position the basin for a resurgence in appraisal and development activity Significant discoveries in the Nanushuk with USGS estimates >6 billion barrels yet-to-find Application of advanced technologies have lowered development costs and reduced environmental impact Increase in pre-FID activity by main operators Major supply base at Deadhorse on the North Slope connected to year- round road support (aviation, camps and warehousing) Trans-Alaska Pipeline System connects North Slope to Valdez Marine Terminal with over ~500 MBOPD of current excess capacity All infrastructure to Valdez export terminal is open access Source: Company disclosures, Wood Mackenzie, IHS, USGS, AOGA Santos

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