Wow!! First is the mention of splitting on the ends. When the ends start to crack, all that tells you is that the surface on the ends have dried. It tells you nothing about the interior of that log. It is really amazing especially with you being an engineer that you've "reasoned" out your theory on the wood with the dry wood soaking up the moisture from the wet wood. Sorry, that is not going to happen. Where the moisture goes when it leaves the green or wet wood is right straight into the air. Wood is not a sponge! The only time wood will soak up moisture is if it is in constant or near constant water or else if it is punky. So that 6 month oak will release moisture but it will not go into your dry wood. Ah, but let's think about floors and doors and furniture etc. This sounds just like a fellow who came to my place and we were talking about a wood pile of ours (this was in the fall of the year). He asked about shrinkage and I freely told him what had happened and how much it had shrank. It is normal. Then he commenced to tell me that by the following spring, the wood pile would be right back to where it had started when stacked. I said, "What?!" Then he brought up about the wood doors and floors etc which we all have witnessed. Well, I am not too smart so I agreed that we would measure that wood pile again and then measure it the following spring. This should tell the difference. We did measure and as expected, that wood pile shrank more. I actually measured it a few times over the winter and early spring. It never increased. It is not a sponge! Same thing with the damp towel and green wood. Hold a damp towel next to the wood. The towel will dry, but that moisture is going into the air; not the wood. Finally, you mentioned that wood might be okay next year. Good luck. Around here we will not burn oak until it has been split and stacked....out in the wind, for 3 years. Be sure you check your chimney monthly and clean as necessary. Especially now that you've attempted to burn this green oak.