Hmmm, I would keep an open mind though. It's not like these oil companies are dumb. They know that their reputation is bad. Slip a few million into the pockets of their enemies and "leak" information that they "the big baddies" are funding these seemingly unlikeable people, and that would likely slowly damage their reputation beyond repair. Although that may just be some light conspiracism on my part.

Edit Addendum: I do think that whatever actions that just stop oil has done are ultimately harmless to whatever object they """""vandalize""""". Their actions are very good at getting public attention on climate change, and maybe even boosting donations to less radical climate activist groups.