Exxon denies they had anyting to do with the video and ABC reports a DCI representative as stating:
“We do not disclose the names of our clients, nor do we discuss the work we do on behalf of our clients.”
This is yet another in a long list of examples of underhanded PR spin being used to attack the scientific consensus on climate change - it is also an extremely amateurish and immature example of PR in general. DCI's unwillingness to disclose the client footing the bill for this sad little video means they're probably raring up for some damage control on this one. This is a bad PR move on the part of DCI, by covering up their client they are only drawing more attention to the story and making themselves and Exxon look all that more guilty.
Of course, questionable PR tactics by DCI are not surprising, when you consider that DCI's current CEO, Doug Goodyear , was also heavily involved  as a PR consultant in RJ Reynold's efforts to manufacture a grassroots campaign against tougher tobacco laws.
I guess when it comes to PR and climate change, we just have to keep “smoking” these guys out of their holes. Sorry, bad pun, had to be done.