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Jul 2021: TPAO has completed the first flow test of the Türkali-2 appraisal well in 2,154m of water in the Sakarya gas field in the Western Black Sea . The FEED, which will be concluded after all the well tests with first gas expected in 2023. The Sakarya gas field project comprises a subsea production system, a receiving and processing terminal on the Filyos shore and pipelines.

Jun 2021: TPAO (operator, 100%) has reportedly discovered 135 bcm of gas in the southern Black Sea Amasra-1 well within the Sakarya gas field, raising the total discovery in this region to 540 bcm. In 2020 the Fatih drill ship discovered gas in the Tuna-1 ultra-deepwater well block AR/TPO/KD/C26-C27-D26-D27.

Jan 2021: Turkey and Greece will continue talks over territorial claims in the Mediterranean Sea. They have held 60 rounds of talks since 2002 but talks ceased in 2020 after a disagreement over Turkish seismic exploration vessel Oruc Reis deployed in disputed waters. It has now returned to a Turkish port.


Sep 2020: TPAO is adding another drillship (Kanuni) for operations in the Black Sea, joining the Fatih drillship which recently drilled the successful Tuna-1 well gas discovery.

Aug 2020: TPAO (operator, 100%) announced a significant gas find in the Black Sea. The Tuna-1 well (English: Danube-1) lies in 2115m of water and may contain 320 bcm of recoverable reserves later increased to 405bcm). Tuna-1 is in block AR/TPO/KD/C26-C27-D26-D27, drilled with 6th generation drillship (Fatih) purchased by TPAO in 2018.

Jun 2020: Trillion Energy issued an update on its South Akcakoca Gas-Basin (SASB) fields in the Black Sea. Since production started in 2007 the fields have produced nearly 1.2 bcm of gas in water depths less than 100 m. They comprise 23 wells, 4 platforms, pipelines and a gas processing plant. Production has recently been increased by 50% and the company is working on a re-development program.

Apr 2020: Valeura Energy has increased its interest in the Banarli and West Thrace exploration licenses and in its deep unconventional gas appraisal programme, taking over Equinor’s interests. Eleven deep wells have penetrated the deep gas to date. It intends to re-start production from the Devepinar-1 well with a longer-term production test.  


Sep 2019: Valeura Energy and Equinor announced successful gas/condensate flow tests from the Inanli-1 appraisal well in the Thrace Basin after fracturing the reservoir. A pilot production project is being planned for the unconventional pay zones.


No significant news in 2018.


Dec 2017: Condor Petroleum (operator, 100%) announced that gas production has commenced at the Poyraz Ridge field. The field, located onshore on the Gallipoli peninsula in the Thrace Basin, was acquired by Condor in March 2016. It includes 5 development wells, tied into the Turkish natural gas pipeline system.

Jul 2017: Valeura Energy announced the first deep exploration well, Yamalik-1, under Phase 1 of the Banarli farm-in agreement with Statoil has completed drilling and left in a state ready for completion and production testing. Yamalik-1 is the first test of the deep, basin-centred gas potential in the Thrace Basin. The testing program will commence late in the third quarter of 2017.

Jul 2017: Condor has announced drilling has commenced on the Yakamoz-1 exploration well 2 kms north of the Poyraz Ridge gas field. Poyraz Ridge remains on track to begin gas production in Q3 2017 with construction of the CPF 85% complete and the 6-in. gas sales line ongoing,

Jan 2017: Poyraz West-2 has discovered gas in the southwest extension of the Poyraz Ridge gas field in the Thrace Basin. Production casing has been set and the well will be completed and tested prior to Poyraz Ridge first gas in mid-2017. All 4 wells have encountered gas columns. The nearby Yakamoz-1 exploration well will also be drilled in 2017.


May 2016: Statoil has farmed-in to 2 exploration licenses in Thrace. Valeura Energy is operator (50%) of the Banarli licences with the remaining 50% going to Statoil.The shallow formations above 2,500m will be retained by Valeura. A phase one well is planned for early 2017 to test for unconventional gas potential n a region where gas has been produced since the 1920s.

Mar 2016: Valeura (operator, 100%) has achieved first gas sales from its Bati Gurgen-1 well on the Banarli licences in the Thrace Basin. The well has been tied-in to an existing dehydration facility at the Gurgen-1 well on the adjacent block and gas is being distributed to customers north of Banarli.

Jan 2016: Valeura Energy (operator, 100%) confirmed a gas discovery in its first exploration well, Bati Gurgen-1, on its Banarli licences in the Thrace Basin. The well is shut-in awaiting completion of the pipeline tie-in to the dehydration facility at the Gurgen-1 well 3 kms to the southeast. First gas is due in February 2016.


No significant news in 2015.


Oct 2014: Valeura Energy announced 3 new discoveries in a natural gas exploration program in the Osmanli area potentially adding up 0.07 bcm a year to production. Two additional exploration wells are already planned.

Jul 2014: TransAtlantic has 3 rigs in SE Turkey and has spudded 5 wells and completed 4 new wells . It continues  drilling in the Selmo field, spudding 8 horizontal wells and expecting to spud 5 in 2014. The company is also engaged in drilling programs in the nearby Bahar field and the Arpatepe field in southeastern Turkey and will soon recommence drilling in the Thrace basin in northwestern Turkey in the Osmanli area.

Jun 2014: ExxonMobil is in talks with the Turkish Petroleum Corporation to explore for shale gas in southeast Thrace and northwest regions. Shell is also drilling for shale gas around the southeastern city of Diyarbakir.

Jun 2014: Positioning operations are ongoing for the rig GSP Prometeu on the Istranca project, to the northwest of Istanbul in the Black Sea.


Oct 2013: TransAtlantic has 3 active rigs in southeastern Turkey and two in the Thrace Basin in northwest Turkey. The company plans to drill 38 wells in 2013. In southeastern Turkey TransAtlantic drilled a horizontal well in the Selmo field and plans to drill up to five additional horizontal wells in 2013. The Company is also drilling E and P wells in the Molla Area and in the southern Thrace Basin including in the Edirne field.

Aug 2013: Cub Energy has spudded its first exploration well on a Turkish licence. The Yolduzu-1 well is on the Besni licence in south-east Turkey is targeting a Cretaceous reservoir in the Anatolian basin, 20 kms southwest of the Sambayat oil field.

Feb 2013: Turkey is hoping to find shale gas in basins in its SE, E and W Thrace regions. Shell is drilling for shale gas around the southeastern city of Diyarbakir in the Dadas Shale basin while TransAtlantic Petroleum is also active. However estimates of Turkey's shale gas reserves vary wildly and even if commercial deposits are found any production is unlikely before 2017.

Feb 2013: Shell is to sign an agreement with TPAO covering oil exploration in the western Black Sea region. Depending on the results of initial studies the first  well will be drilled within two years."

Jan 2013: Turkey is drilling for oil and gas with more rigs than any European country and plans new rules in 2013 to speed up exploration. The country was using 26 rigs at  the end of Dec and the number has since risen to 34. Offshore drilling is increasing in the Black and Mediterranean Seas with spending on exploration jumping to US$610 mm in 2012 from U$42 mm in 2002.


Sep 2012: Shell is assessing oil exploration and production opportunities in the Black Sea with state-owned oil firm TPAO. In Nov 2011 TPAO signed an accord with Shell for exploration and production in the Mediterranean and southeastern Turkey, including plans for shale gas exploration near the southeastern city of Diyarbakir and Yildiz.

East Mediterranean


E and P


Turkey Datafiles

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