No surprise that IR has not replied to my email sent a week ago. Rosneft's release was void of details, too.
This lack of transparency worked so well that Petrobras followed the same "no details" strategy in its Friday's release on price adjustments and sank ~10%.
I think that any money Rosneft is paying HRT will be funneled into a restricted account to be used for Amazon only cap ex projects. Thus, no cash to help HRT with its liquidity issues.
As to disposition of HRT's 49% interest, Rosneft probably has a right of first refusal on any sale, which naturally reduces the interest of any third party, i.e., not worth the time, money or energy to investigate if Rosneft can pull the rug out from underneath that company's proposal with a matching bid.