Thrace Basin basement, comprises interbedded fine to coarse grained clastics from a variety of depositional environments, turbidite, muddy carbonates with local reef developments, river channels and tuffs. More than 400 wells were drilled till 2008; 14 gas and 3 oil fields were discovered and all of them are producing. Main gas productions zones are between Eocene- Oligocene deposits; Hamitabat (turbiditic sandstones), Ceylan (tuffs), Sogucak (reefal limestone), and Osmancik (deltaic sandstone) formations. Shales of Hamitabat and Mezardere formations have good source potentials. Thrace Basin The European side of Turkey is called the Thrace Basin. It is the largest and thickest Cenozoic sedimentary basin
Turks of Western Thrace was a measure to avert the possibility of the Greek region of Eastern Macedonia and Thrace becoming a "second Cyprus" sometime in the future or of being ceded to Turkey on the basis of the ethnic origin of its Muslim inhabitants. Greek courts have also outlawed the use of the word 'Turkish' to describe the Turkish community. In 1988, the Greek Supreme Court affirmed a 1986 decision of the Court of Appeals of Thrace in which the "Union of Turkish Associations of Western Thrace" was ordered closed. The court held that the use of the word 'Turkish' referred to citizens