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
Ministry of Macedonia and Thrace exchange between Greece and Turkey in the 1920s. According to Presidential Decree no. 167 (2 September 2005), the Ministry of Macedonia and Thrace was made up of the following departments: Since the "Metapolitefsi", there have been twenty Ministers for Macedonia and Thrace from two parties, New Democracy and PASOK. The first to assume the post following the fall of the military junta in 1974 was Nikolaos Martis. Stavros Kalafatis served as the last minister before the ministry's abolition upon the election of George Papandreou in 2009. The ministry was re-established on 21 June 2012 after the election of Antonis Samaras,