Ann: Quarterly Activities Report and Appendix 5B, page-18

Well there's little or no future in CH. For years they have been singing the old chestnut of producing a 1000 BPD when we know it's around 750. The platform is old and in constant need of maintenance, don't mention the decom costs! Unless there is a significant new oil find in region ( Xanadu proved there probably isn't) I can't see much of a future,Not to mention the exploration costs are massive in the search for new oil.
TEG has all the hallmarks of a rinse and repeat stock. They were fortunate with GAS which is the sticky tape holding it all together.
maybe they can switch into new hydrogen tech with Pilot and convert the platform and arrow to suit. AS for BP - it's gone and what little margin they have currently in producing oil will be soaked up in transporting costs to overseas.