The oil industry needs to be clear with the Trump administration, if not the public, about how executive orders issued by the new US President will affect their business.

There appears to have been little thought as to how the changes would interact with one of the largest industrial sectors in the country.

Major oil players have said nothing publicly about how the travel ban has affected their operations, but snippets of information that have come out indicate that it will change the way they work in some cases.

Halliburton