No, but when Gazprom threatened EU gas supply stability as a result of the Centrica bush with the UK

This threat was mainly the result of Gazprom's frustration, as I believe Jerome has already mentioned, of the UK not playing by the rules.

That's my main point here at ET - there seems to be a different set of rules applied to Russia.  And these rules appear to change magically, and abruptly, to suit Europe's interests at the time.

The EU uses trade for political leverage.  How is using one's natural resources any different or worse, as you seem to imply?