Turkish banks have been lending to energy industry firms at a rapid clip. The share of the industry in total corporate loans rose from 3% in 2007 to 7.4% in 2H15, and this came amid a lending boom that had been a major concern about the economy.

According to the Turkish banking watchdog (BRSA) data, total energy loans were 151 million liras that accounted for 7.36% of total corporate loans which was 2,058 million liras as of...