Zephyr Energy plc provided initial first quarter 2024 ("Q1") results related to hydrocarbon production from its non-operated asset portfolio in the Williston Basin, North Dakota, U.S (the "Williston project"). First Quarter production averaged 1,151 barrels of oil equivalent per day ("boepd") compared to production in the fourth quarter of 2023 ("Q4") of 1,053 boepd, representing an increase of 9% quarter on quarter. While production from the six wells operated by Slawson Exploration Company (the "Slawson wells") was temporarily shut-in over the winter months due to adverse weather conditions and infrastructure constraints, production from the wells resumed in late January 2024.

The average daily production rate from the portfolio in March 2024 was 1,212 boepd reflecting the impact from the Slawson wells being online, albeit not at full capacity as the wells were partially curtailed due to lingering infrastructure constraints. First Quarter production rates from the remainder of the portfolio were in line with management expectations. At 31 March 2024, 230 wells in Zephyr's portfolio were available for production (versus 225 wells at the end of Q4).

Net working interests across the Zephyr portfolio now average 7.1 per cent per well (equivalent to 16.3 net wells). During February 2024, ten wells in which Zephyr holds working interests and which are operated by Continental Resources (Harms Federal and Quale Federal) were placed in production. Early production data shows these wells performing ahead of management expectations, adding initial production rates, net to Zephyr, of circa 75 boepd.

The Company hedged 27,000 barrels of oil over First Quarter at a weighted-average price of USD 82.20 per barrel. The Company will continue to evaluate its commodity price risk management strategy on a regular basis. The Company has also hedged a total of 76,000 barrels of oil for the remainder of the year.

40,500 barrels are hedged at a price of USD 80.91 and the remainder have been hedged by way of financial collars which enable the Company to lock-in a minimum price for these barrels. Of the 35,500 financial collars, 26,600 will give the Company a minimum price of USD 74 per barrel of oil with the remaining 9,000 guaranteeing a floor price in USD 69 per barrel of oil. The Company will report sales and revenue results on a semi-annual basis to coincide with its financial reporting requirements.