Did Ireland Gas German U boats during World War 2?

The rumour that the Irish refuelled German U-boats during the Second World War is a persistent one but without any form of evidence, contemporary or otherwise. Sufficient testimony and documentary evidence exists from German U-Boat crews and commanders (many of them are still alive today) that we have a fairly clear picture of the movements, patterns, refuel stops and home ports of German u-boats to say that no such activity ever took place in Ireland. We have learned for instance that one "neutral" nation, Spain, did refuel German U-boats, in the port of Vigo. This has come to light through the recorded accounts of crews involved. No mention of any Irish port has ever emerged , as a refuel point or any other stop-off point. While it cant be discounted completely, the complete lack of evidence, circumstancial or otherwise suggests that the rumour is almost certainly untrue.