Thanks very much and good afternoon everyone. I'd like to welcome you to TransCanada's 2018 fourth quarter conference call. With me today are Russ Girling, President and Chief Executive Officer; Don Marchand, Executive Vice President and Chief Financial Officer; Tracy Robinson, President of our Canadian Natural Gas Pipelines Business; Stan Chapman, President, U.S. Natural Gas Pipelines; Francois Poirier, Executive Vice President, Corporate Development and Strategy, and President of our Mexican and Energy businesses; Paul Miller, President of Liquids Pipelines; and Glenn Menuz, Vice President and Controller. Tracy and Francois have joined us for the first time in their expanded roles, following Karl Johannson's decision to retire. Both have been with TransCanada for a number of years in senior capacities. Russ and Don will begin today with some opening comments and our financial results and certain other company developments. A copy of the slide presentation that will accompany their remarks is available on our website at transcanada.com. It can be found in the Investors section under the heading Events. Following their prepared remarks, we will take questions from the investment community. If you are a member of the media, please contact Grady Semmens following this call and he would be happy to address your questions. In order to provide everyone from the investment community with an equal opportunity to participate, we ask that you limit yourself to two questions. If you have additional questions, please re-enter the queue. Also, we ask that you focus your questions on our industry, our corporate strategy, recent developments and key elements of our financial performance. If you have detailed questions relating to some of our smaller operations or your detailed financial models, Duane and I would be pleased to discuss some with you following the call. Before Russ begins, I'd like to remind you that our remarks today will include forward-looking statements that are subject to important risks and uncertainties. For more information on these risks and uncertainties, please see the reports filed by TransCanada with Canadian securities regulators and with the U.S. Securities Exchange Commission. And finally during the presentation we'll refer to measures such as comparable earnings, comparable earnings per share, comparable earnings before interest, taxes, depreciation and amortization or comparable EBITDA, comparable funds generated from operations, and comparable distributable cash flow. These and certain other comparable measures are considered to be non-GAAP measures. As a result, they may not be comparable to similar measures presented by other entities. These measures are used to provide you with additional information on TransCanada's operating performance liquidity and its ability to generate funds to finance its operations. With that, I'll turn the call over to Russ.