Trillion Energy Announces Light Oil Discovery

32.4° API Light Oil Discovery Confirmed at C-1 Well with 38 Metres Net Pay

Vancouver, British Columbia--(Newsfile Corp. - April 14, 2026) - Trillion Energy International Inc. (CSE: TCF) (OTCQB: TRLEF) (FSE: Z62) ("Trillion" or the "Company") is pleased to announce a significant light oil discovery at the Çetinkaya-1 ("C-1") well in Southeast Türkiye, and a strategic realignment to focus on high-impact oil exploration.

Light Oil Discovery at Çetinkaya-1 Confirms Mardin Group Potential

The Company reports that the C-1 exploration and appraisal well on Block M47C3,C4 in Şırnak Province, has successfully confirmed 32.4° API light oil within the Cretaceous Beloka and Mardin Group carbonates.

A wireline logging programme was conducted, including gamma ray, dual laterolog resistivity (shallow and deep), compensated density, compensated neutron porosity, sonic, spontaneous potential, and multi-arm caliper. Log analysis was performed using Archie's equation with parameters calibrated to the C-1 formation conditions.

Key technical highlights include:

• Hydrocarbon-bearing intervals confirmed in both the Beloka and Mardin formations

• Fractured dolomitic oil reservoir containing light oil (32.4 API)

• 38.0 metres of net oil pay identified within a 76.6-metre gross reservoir interval, representing a ~50% net-to-gross ratio. Fracture-adjusted gross pay: of about 40.6 m with fracture-adjusted net pay: about 36.0-38.5 m

• Average effective porosity (PHIE): 5.5%; Estimated fracture-enhanced effective permeability 5-50 mD, with potential upside; average water saturation (Sw): 25%

• Best reservoir interval 7m shows PHIE up to 8.1% and Sw as low as 8%, indicated >90% oil saturation

• Reservoir composed predominantly of dolomitic carbonate (77% dolomite), consistent with productive regional analogues

• Best log-derived oil saturated reservoir intervals (~2418-2448 m) have not been properly tested

• A 30-barrel 15% hydrochloric acid stimulation occurred, confirming fracture permeability and produced 32.4° API light oil at increasing oil cuts, reaching 36% oil cut in the final swab campaign

• Importantly, the well intersected only ~38 metres of a targeted 250-350 metre reservoir section, as drilling was halted at 2,455 metres due to loss of circulation. Additional reservoir section (~160+ metres) remains unpenetrated due to early termination of drilling

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