Selling 1x ‘Mobile Refinery Operation Skillbook’.
The skill has never been officially released and was only purchasable due to an in-game bug and was removed from the game 17 years ago in 2004, shortly after the game launched.
Not a single contract exists for it in-game currently and it cannot be sold on markets.
Previous sales/bids with open prices:
August 2021 - 25bil WTS Mobile Refinery Operation skillbook - #5 )
May 2021 - 35bil WTS Collectors Mobile Refinery Operation skill + original Large rigged ships
April 2021 - 35bil with an offer of 30bil WTS rare skillbooks
Currently looking for 25b