Total-Fina-ELF is a semi-national company (if you know about how big business works here in France, you'll understand what that means), which is incidentally France's biggest company. They were making money hand-over-fist in the food-for-oil thing, EMAC is quite correct. And, of course, they had their contacts in Saddam's government - which would not be the case post-invasion.
Bear in mind that the thing France reproached the Allies with was not (as the Germans honourably did) being inethical and starting a war without UN backing, but wanting to get hold of the oil. They still go on about that. Ethics had no place in any of the arguments they put forward against the war; the Germans, on the other hand, were straight from the start, and did not keep shifting their position in the way the French did. And that, in my opinion, is why there was no ill-will against the Germans, but there still is against the French.
Not having UN backing did not stop the French invading Yugoslavia, did it?