Petroceltic returns to the London and Dublin markets today following the completion of its merger with Melrose Resources.

The enlarged firm was readmitted to London’s AIM and Dublin's ESM markets today.

Petroceltic has licences in Algeria and Italy, while Melrose was focused on Egypt, Bulgaria, Romania and Turkey.

The combined group, which retains the Petroceltic name, is headquartered in Dublin.

The merger, which was announced in August, was approved by Bulgarian authorities earlier this month.