What Mr. Berman did not know — and what could now complicate his task of marginalizing environmental groups that want to impose limits on fracking — is that one of the energy industry executives recorded his remarks and was offended by them.

“That you have to play dirty to win,” said the executive, who provided a copy of the recording and the meeting agenda to The New York Times under the condition that his identity not be revealed. “It just left a bad taste in my mouth.”

Mr. Berman had flown to Colorado with Jack Hubbard, a vice president at Berman & Company, to discuss their newest public relations campaign, Big Green Radicals, which has already placed a series of intentionally controversial advertisements in Pennsylvania and Colorado, two states where the debate over fracking has been intense. It has also paid to place the media campaign on websites serving national and Washington audiences.

A spokeswoman for Mr. Berman confirmed that he gave the speech, but said he would have no comment on its contents.

Mr. Berman is well known in Washington for his technique of creating nonprofit groups like the Center for Consumer Freedom that secretly collect corporate donations to finance the aggressive, often satirical media campaigns his team conceives. They are intended to undermine his opponents, like labor unions or animal rights groups that have tried to spotlight the treatment of animals at meatpacking plants.