SInce oil refining is an unregulated industry I'm pretty sure the government has no legal right to demand what amounts to business secrets.
Of course they can be compelled to provide the information.
Form the link itself:
"The BCUC could compel testimony and documents from companies as part of its review."
Proving once more that stupid people do not think they have to actually read anything.
Is that a surprise?
No.
It makes perfect sense.