Tanker markets face a tough second half of 2017, and possibly 2018, as some major oil producers target an extension to crude oil production cuts. 

The silver lining for shipowners is that at least some of those cuts are being offset by increases in crude output, and cargoes, from the Atlantic Basin.

Opec and non-Opec members plan to renew production cuts put in place at the beginning of the year that trimmed 1.8