There is some more to this story.
You just can't buy something worth 2.7 billion for 250 million.
One example:
The totalizator of the Athens race course in 1995. An American company who had already won the bid in Cyprus makes an offer for 20 million. Intralot asks for 25 million, the totalizator will not become property of the racecourse but operated by Intralot on behalf of the race course so the race course will have to pay every month !
Intralot wins with the shaky excuse that they offer jobs to Greek workers.
It was scandalous and we all know there was a lot of political wheeling and dealing.
Then they do more. In the year 2001 they change all the displays to euros. But that was n't due till 2002 so they make them show first drachmas
then euros, alternating. The result was awful-unreadable. But Intra got 2 million euros for it, for making the displays unreadeable and then they get paid more in 2002 to make them into proper euro displays.
But all that is small money.
Or the other Greek deal with the German built submarines at around the same time. There was bribing, some people were sentence to long prison sentences, but again it was small money when compared to the total cost of the subs.
How can you pay 250 million for something worth 2.7 billion ? Nobody around to make another offer ? Then it was not worth 2.7 billion.
If it was me I could easily double the bribes to the various officials and buy the snibneft for say 2.3 billion.