“Bottom line is, our current administration will allow foreign companies to drill for oil, but if there is a leak, foreign companies and nations are not allowed to help clean up the mess.”
I haven’t seen it worded that way yet - but I do believe you are correct! This does appear to be the official policy.
Here then, I will reveal the justification that is obvious, yet unspoken.
It is better to have a long term loss of income for all those in the Gulf area, and endanger public health, than it is to have some foreigner DONATE time and equipment which could have prevented it all.
Better to risk the lives and economy of those cheap fishermen who don’t donate to your campaign fund, than to have your UNION friends not have a BIG ENOUGH STASH to be able to make ‘generous’ campaign donations from.