Thank you for your question.
I don't have the dates in front of me. It was only through a cursory search of the Registry of Lobbyists in Canada. You could see that the companies, Nexen, Petrobank Energy and Resources Limited, as well as Talisman Energy, have all had lobbyists speak to MPs regarding the Canada-Colombia free trade agreement, as well as a few others, including the Canadian Council of Chief Executives and Human Rights Watch.
I'd be happy to pass on more specific details, or perhaps one of your aides could assist you with that in the future.