Light oil discovery shifts Trillion Energy (OTCQB: TRLEF) toward oil focus

Rhea-AI Filing Summary

Trillion Energy International Inc. reported a significant light oil discovery at its Çetinkaya-1 (C-1) exploration and appraisal well in Southeast Türkiye and plans a strategic realignment toward high-impact oil exploration. Wireline logs confirmed 32.4° API light oil within Cretaceous Beloka and Mardin Group carbonate reservoirs, with 38 metres of net pay identified in a 76.6‑metre gross interval. Testing after acid stimulation produced 32.4° API light oil with rising oil cuts, indicating mobile oil and a connected fracture system, though no sustained production test has yet been completed. The company plans a C-1 sidetrack to target the structural crest, believed to contain a thicker oil column, and highlights similarities between this block and nearby large onshore oil fields.

Insights

Energy exploration analyst

Trillion reports a promising light oil discovery but still early-stage.

Trillion Energy has confirmed 32.4° API light oil and 38 metres of net pay at the Çetinkaya-1 well, suggesting a potentially meaningful carbonate reservoir in the Mardin and Beloka formations. The data indicate multiple stacked pay zones and a roughly 50% net‑to‑gross ratio.

The company emphasizes that only part of the targeted reservoir was drilled before loss of circulation, and no sustained production test has been run. Reported swab and acid-stimulation results mainly confirm mobile oil and fracture connectivity rather than commercial flow rates.

A planned C-1 sidetrack aims at the structural crest, about 75–100 metres higher, where a thicker oil column is interpreted. Future results from this sidetrack and subsequent testing will determine how closely this discovery may resemble nearby analogue fields mentioned for Block M47C3,C4.

Key Figures

Oil gravity: 32.4° API Net oil pay: 38.0 metres Gross reservoir interval: 76.6 metres +7 more

10 metrics

Oil gravity 32.4° API Light oil confirmed at Çetinkaya-1 well

Net oil pay 38.0 metres Identified within a 76.6‑metre gross reservoir interval

Gross reservoir interval 76.6 metres C-1 reservoir section logged with hydrocarbons

Average effective porosity 5.5% Beloka and Mardin reservoir interval at C-1

Average water saturation 25% Logged hydrocarbon-bearing intervals at C-1

Acid stimulation volume 30 barrels, 15% HCl Stimulation confirming fracture permeability at C-1

Maximum oil cut in swab tests 36% Final swab campaign after acid stimulation

Planned sidetrack elevation change 75–100 metres higher Structural crest target for C-1ST well

Distance to major analogue field 11 km Block M47C3,C4 southeast of Şehit Aybüke Yalçın field

Working interest to be earned 29% M47 oil exploration block (c3 and c4 licenses)

Key Terms

net pay, API, Archie’s equation, Managed Pressure Drilling, +2 more

6 terms

net pay financial

"38.0 metres of net oil pay identified within a 76.6-metre gross reservoir interval"

Net pay is the amount of money an employee actually receives on their paycheck after all required deductions—like taxes, retirement contributions, health insurance premiums and other withholdings—have been removed from gross wages. Investors pay attention to net pay because it affects a company’s cash outflows and labor costs, reflects payroll accuracy and compliance (missteps can create tax or legal liabilities), and influences employee morale and retention which can in turn affect productivity and profitability.

API technical

"32.4° API light oil within the Cretaceous Beloka and Mardin Group carbonates"

An API, or Application Programming Interface, is a set of rules that allows different software programs to communicate and work together smoothly, much like a waiter translating your order into the kitchen and then bringing your meal back. For investors, APIs are important because they enable real-time access to financial data, trading systems, and other digital services, making it easier to make informed decisions quickly and efficiently.

Archie’s equation technical

"Log analysis was performed using Archie’s equation with parameters calibrated to the C-1 formation conditions"

Managed Pressure Drilling technical

"statements regarding the planned C-1ST sidetrack programme and timing thereof; the anticipated use of Managed Pressure Drilling"

A drilling technique that actively controls the pressure in the space around the drill bit to prevent uncontrolled fluid flows from underground and to keep the well stable as drilling goes deeper. Think of it like carefully adjusting the water level in a glass while dropping a pebble so the liquid never overflows; for investors, it reduces the risk of costly delays, accidents, or lost wells and can improve project timelines, safety records, and capital efficiency.

National Instrument 51-101 regulatory

"prepared in accordance with National Instrument 51-101 — Standards of Disclosure for Oil and Gas Activities"

A Canadian securities rule that sets standards for how mining companies must report information about their mineral projects, including who can prepare technical reports and what those reports must include. Think of it like a required home inspection and disclosure sheet for a mine: it forces consistent, independently prepared facts about the size, quality and risks of a mineral deposit so investors can compare opportunities and assess how much uncertainty or potential value is involved.

electrical submersible pumps technical

"sidetrack wells, which will be completed with electrical submersible pumps"

An electrical submersible pump is a motor-driven pump assembly installed down inside a well to push liquids — oil, water or mixtures — up to the surface. Think of it as a waterproof engine placed at the bottom of a straw that continuously forces fluid upward, enabling steady production from wells that won't flow on their own. For investors, ESPs matter because their reliability, energy use and maintenance needs directly affect production volumes, operating costs and the timing of revenue from oil or water-producing assets.

Form 6-K: How Foreign Companies Report to the SEC →

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16
UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of April 14, 2026

Commission File Number: 000-55539

TRILLION ENERGY INTERNATIONAL INC.

(Translation of registrant’s name into English)

Suite 700, 838 West Hastings Street
Vancouver, BC, V6C 0A6
(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

☒ Form 20-F   ☐ Form 40-F

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1): ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7): ☐

On April 14, 2026, Trillion Energy International Inc. issued the news release filed herewith as Exhibit 99.1, announcing a light oil discovery at its Çetinkaya-1 (“C-1”) well in Southeast Türkiye.

Exhibit No.
99.1		News Release April 14, 2026 – Trillion Energy Announces Light Oil Discovery

-2-

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

TRILLION ENERGY INTERNATIONAL INC.

/s/ David Thompson

David Thompson

Director, Audit Committee Chair

April 14, 2026

-3-

Exhibit 99.1

Trillion Energy Announces Light Oil Discovery

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

April 14, 2026 - Vancouver, B.C. - Trillion Energy International Inc. (“Trillion” or the “Company”) (CSE: TCF) (OTCQB: TRLEF) (Frankfurt: Z62), 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

Net pay cut-off criteria: water saturation (Sw) ≤ 50%; matrix porosity (φ) ≥ 3.0% and PHIT ≥ 4%.

Key observations from the zone data:

	●	Zone A (2,384–2,397 m) is the primary target with 13.0 m of net pay and has not yet been perforated. This represents a near-term testing opportunity in the existing wellbore
	●	The Near TD zone (2,447–2,455 m) shows an improving reservoir trend at total depth, indicating that the deeper, untested and unpenetrated reservoir section to be accessed by a planned sidetrack
	●	Multiple stacked pay zones were identified across the Beloka and Derdere Formations, demonstrating a robust, multi-zone oil system

Significant Upside Identified at Structural Crest accessible by sidetracking

The C-1 well was drilled on the eastern flank of the North Lead structure near the spill point, suggesting that only a limited portion of the hydrocarbon column was encountered. A follow-up sidetrack well (C-1ST) is now planned to target the structural crest, approximately 75–100 metres higher, where the interpreted oil column is significantly greater.

Strategic Location Near Major Producing Field

Block M47C3,C4 is located approximately 11 km southeast of Türkiye’s largest onshore oil discovery, the Şehit Aybüke Yalçın field, which produces from the same Beloka and Mardin Group carbonate reservoirs.

The Company believes the reservoir characteristics observed at C-1, including oil gravity, porosity, and fracture-driven flow, are directly analogous to those of nearby producing fields, reinforcing the commercial potential of the North Lead oil discovery.

About the Company

Trillion Energy International Inc. is focused on oil and natural gas exploration and production in Türkiye. The Company has an agreement to earn a 29% working interest in the M47 oil exploration block (c3 and c4 licenses) located in the Cudi-Gabar petroleum province of Southeastern Türkiye. More information may be found on www.sedar.com, and on our website.

Contact

Scott Lower, President
Brian Park, Vice President of Finance

1-778-819-1585

E-mail: info@trillionenergy.com

Website: www.trillionenergy.com

Cautionary Statement Regarding Forward-Looking Information

**Forward-Looking Information**

This news release contains “forward-looking information” within the meaning of applicable Canadian securities laws, including but not limited to: statements regarding the planned C-1ST sidetrack programme and timing thereof; the anticipated use of Managed Pressure Drilling and open-hole logging in the sidetrack wells; the interpretation of the C-1 structural position relative to the North Lead crest; the anticipated oil column and reservoir characteristics at the structural crest; anticipated completion of the sidetrack wells and the expected data to be obtained; and the Company’s assessment of the analogy between Block M47C3,C4 and the Şehit Aybüke Yalçın and Şehit Esma Çevik fields.

Forward-looking information is based on a number of assumptions including, without limitation: access to the block and rig availability; JOC partner approvals; prevailing oil prices and foreign exchange rates; the accuracy of analogies to nearby producing fields; the geological interpretation of available well and seismic data; and the availability of required services and equipment.

Forward-looking information is subject to known and unknown risks, uncertainties and other factors, many of which are beyond the Company’s control, that may cause actual results to differ materially from those expressed or implied by such forward-looking information. These risks include: geological risk that the structural crest does not contain the anticipated oil column; drilling and operational risk including lost circulation, stuck pipe, and equipment failure; reservoir risk that the fracture network is not connected to the structural crest; commodity price risk; regulatory risk in Türkiye; JOC partner risk; and currency risk. Readers are cautioned not to place undue reliance on forward-looking information.

The forward-looking information contained in this news release is made as of the date hereof and the Company disclaims any obligation to update any forward-looking information, whether as a result of new information, future events or results or otherwise, except as expressly required by applicable securities law.

**Oil and Gas Disclosure — COGEH / NI 51-101**

This news release has been prepared in accordance with National Instrument 51-101 — Standards of Disclosure for Oil and Gas Activities (“NI 51-101”) and the Canadian Oil and Gas Evaluation Handbook (“COGEH”).

*Pay definitions:* “Gross pay” refers to the total thickness of the reservoir interval above a minimum hydrocarbon saturation threshold as identified from wireline logs, without application of porosity or water saturation cut-offs. “Net pay” refers to the thickness of reservoir rock meeting minimum porosity (φ ≥ 3.0%) and maximum water saturation (Sw ≤ 50%) cut-offs as described herein.

*Log quality and water saturation:* Water saturation values have been derived from Archie’s equation using parameters as described in this news release. All water saturation values are conservative ceiling estimates due to water-based mud filtrate invasion during drilling. True formation water saturation is estimated to be 10–15 percentage points lower in each zone. This uncertainty has not been adjusted for in the reported values; readers are cautioned that reported water saturations may overstate the true water saturation of the formation.

*Well test disclaimer:* The drill stem tests and swab results reported herein were conducted under non-flowing reservoir conditions using swab techniques and are not representative of sustained production rates from properly completed wells. No sustained production test has been conducted. The acid stimulation and swab results demonstrate the presence of mobile oil and a connected fracture system but should not be used to estimate production rates from the sidetrack wells, which will be completed with electrical submersible pumps. No volumes of oil have been produced from this well to date on a commercial basis.

*Analogue fields:* References to production rates and reservoir characteristics at the Şehit Aybüke Yalçın and Şehit Esma Çevik fields are based on publicly available information reported by Türkiye Petrolleri Anonim Ortaklığı (“TPAO”) and public media sources. These fields are operated by TPAO and Trillion Energy has no direct knowledge of their subsurface or production data. Production rates at analogue fields are not necessarily indicative of production rates that may be achieved at Block M47C3,C4.

*Neither the Canadian Securities Exchange nor its regulation services provider accepts responsibility for the adequacy or accuracy of this news release.*

FAQ

What did Trillion Energy (TRLEF) announce about the Çetinkaya-1 well?

Trillion Energy announced a light oil discovery at its Çetinkaya-1 well in Southeast Türkiye. Logging confirmed 32.4° API light oil in Beloka and Mardin Group carbonates, with 38 metres of net pay identified in a 76.6‑metre gross reservoir interval, indicating a promising multi-zone oil system.

What are the key reservoir characteristics of Trillion Energy’s C-1 discovery?

The C-1 well shows 38 metres of net pay within a 76.6‑metre gross interval, averaging 5.5% effective porosity and about 25% water saturation. The reservoir is predominantly dolomitic carbonate, with fracture-enhanced permeability estimated between 5 and 50 millidarcies, supporting potential for effective fluid flow.

Has Trillion Energy demonstrated commercial production from the C-1 well?

No commercial production has been demonstrated yet. Acid stimulation and swab tests produced 32.4° API light oil with up to a 36% oil cut, confirming mobile oil and fracture connectivity. However, the company states no sustained production test has been conducted and no commercial oil volumes have been produced to date.

What future drilling plans did Trillion Energy outline for the C-1 area?

Trillion Energy plans a C-1 sidetrack well, called C-1ST, targeting the structural crest around 75–100 metres higher than the current borehole. The aim is to intersect a thicker interpreted oil column and access deeper, unpenetrated reservoir sections for further testing and data acquisition on the North Lead structure.

How is the C-1 discovery positioned relative to major fields in Türkiye?

Block M47C3,C4, where C-1 is located, lies about 11 km southeast of Türkiye’s largest onshore oil discovery, the Şehit Aybüke Yalçın field. Trillion notes similar carbonate reservoirs, oil gravity, and fracture-driven flow characteristics, though it cautions analogue field performance may not reflect results at its own block.

What working interest does Trillion Energy hold in the M47 block?

Trillion Energy has an agreement to earn a 29% working interest in the M47 oil exploration block, specifically the c3 and c4 licenses in Türkiye’s Cudi-Gabar petroleum province. This interest aligns the company’s focus on advancing exploration and potential development within the Çetinkaya-1 discovery area.

Filing Exhibits & Attachments

2 documents

Press Releases

• EX-99.1 EX-99.1 33.8 KB
• EX-99 GRAPHIC 14.3 KB