TRLEF 6-K
Dune Oil Corp. (TRLEF)
UNITEDSTATES
SECURITIESAND EXCHANGE COMMISSION
Washington,D.C. 20549
FORM6-K
REPORTOF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16UNDER THE SECURITIES EXCHANGE ACT OF 1934
For the month of April 14, 2026
Commission File Number: 000-55539
TRILLIONENERGY INTERNATIONAL INC.
(Translation of registrant’s name into English)
Suite700, 838 West Hastings StreetVancouver, 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<br> 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- |
| --- |
Exhibit99.1
TrillionEnergy Announces Light Oil Discovery
32.4°API Light Oil Discovery Confirmed at C-1 well with 38 Metres Net Pay
April14, 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.
LightOil 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<br> intervals confirmed in both the Beloka and Mardin formations |
|---|---|
| ● | Fractured dolomitic oil<br> reservoir containing light oil (32.4 API) |
| ● | 38.0<br> metres of net oil pay identified within a 76.6-metre gross reservoir interval, representing a ~50% net-to-gross ratio.<br> Fracture-adjusted gross pay: of about 40.6 m with fracture-adjusted net pay: about 36.0–38.5 m |
| ● | Average effective porosity<br> (PHIE): 5.5%; Estimated fracture-enhanced effective permeability 5–50 mD, with potential upside; average water saturation<br> (Sw): 25% |
| ● | Best reservoir interval<br> 7m shows PHIE up to 8.1% and Sw as low as 8%, indicated >90% oil saturation |
| ● | Reservoir composed predominantly<br> of dolomitic carbonate (77% dolomite), consistent with productive regional analogues |
| ● | Best<br>log-derived oil saturated reservoir intervals (~2418–2448 m) have not been properly tested. |
| ● | A 30-barrel 15% hydrochloric<br> acid stimulation occurred, confirming fracture permeability and produced 32.4° API light oil at increasing oil cuts, reaching<br> 36% oil cut in the final swab campaign. |
| ● | Importantly,<br>the well intersected only ~38 metres of a targeted 250–350 metre reservoir section, as drilling was halted at 2,455 metres due to<br>loss of circulation. Additional reservoir section (~160+ metres) remains unpenetrated due to early termination of drilling |
Netpay cut-off criteria: water saturation (Sw) ≤ 50%; matrix porosity (φ) ≥ 3.0% and PHIT ≥ 4%.
Keyobservations 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<br> 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<br> to be accessed by a planned sidetrack |
| ● | Multiple stacked pay zones<br> were identified across the Beloka and Derdere Formations, demonstrating a robust, multi-zone oil system |
SignificantUpside 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.
StrategicLocation 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.
Aboutthe 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: [email protected]
Website: www.trillionenergy.com
CautionaryStatement Regarding Forward-Looking Information
**Forward-LookingInformation**
Thisnews release contains “forward-looking information” within the meaning of applicable Canadian securities laws, includingbut not limited to: statements regarding the planned C-1ST sidetrack programme and timing thereof; the anticipated use of Managed PressureDrilling 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 theexpected data to be obtained; and the Company’s assessment of the analogy between Block M47C3,C4 and the Şehit AybükeYalçın and Şehit Esma Çevik fields.
Forward-lookinginformation is based on a number of assumptions including, without limitation: access to the block and rig availability; JOC partnerapprovals; prevailing oil prices and foreign exchange rates; the accuracy of analogies to nearby producing fields; the geological interpretationof available well and seismic data; and the availability of required services and equipment.
Forward-lookinginformation 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 pricerisk; regulatory risk in Türkiye; JOC partner risk; and currency risk. Readers are cautioned not to place undue reliance on forward-lookinginformation.
Theforward-looking information contained in this news release is made as of the date hereof and the Company disclaims any obligation toupdate any forward-looking information, whether as a result of new information, future events or results or otherwise, except as expresslyrequired by applicable securities law.
**Oiland Gas Disclosure — COGEH / NI 51-101**
Thisnews 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”).
*Paydefinitions:* “Gross pay” refers to the total thickness of the reservoir interval above a minimum hydrocarbon saturationthreshold as identified from wireline logs, without application of porosity or water saturation cut-offs. “Net pay” refersto the thickness of reservoir rock meeting minimum porosity (φ ≥ 3.0%) and maximum water saturation (Sw ≤ 50%) cut-offs asdescribed herein.
*Logquality and water saturation:* Water saturation values have been derived from Archie’s equation using parameters as described inthis 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 adjustedfor in the reported values; readers are cautioned that reported water saturations may overstate the true water saturation of the formation.
*Welltest disclaimer:* The drill stem tests and swab results reported herein were conducted under non-flowing reservoir conditions using swabtechniques and are not representative of sustained production rates from properly completed wells. No sustained production test has beenconducted. The acid stimulation and swab results demonstrate the presence of mobile oil and a connected fracture system but should notbe used to estimate production rates from the sidetrack wells, which will be completed with electrical submersible pumps. No volumesof oil have been produced from this well to date on a commercial basis.
*Analoguefields:* References to production rates and reservoir characteristics at the Şehit Aybüke Yalçın and ŞehitEsma 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 theirsubsurface or production data. Production rates at analogue fields are not necessarily indicative of production rates that may be achievedat Block M47C3,C4.
*Neitherthe Canadian Securities Exchange nor its regulation services provider accepts responsibility for the adequacy or accuracy of this newsrelease.*