Price of LPG going up?

[flappist]

I heard a rumour today that the price of LPG will be going up to about the same as ULP after Xmas. The source was very credible but wishes to remain anonymous.
If this is actually the case then I suspect there will be a lot of unhappy people who have converted their cars.

Has anyone else actually heard anything (as opposed to their personal opinion) that can confirm or deny this?