McLeod says she doesn't how the purchase makes it any more likely the pipeline project will go foward.
But if one isn't found by July 22, Kinder Morgan's stake in the pipeline would be bought out by the Canadian government, which would proceed with the expansion, whose cost has been estimated at about $5.7 billion.
He said any deal to sell the Kinder Morgan assets must also be fair to Canadian taxpayers.
Ottawa approved the project in 2016 after an environmental review, saying it was in the "national interest".
Horgan said Tuesday he will continue with his reference case, launched this spring in the B.C. Court of Appeal to determine if the province can restrict heavy oil shipments and create new spill and cleanup funding rules.
Amid the feuding, the pipeline has become a barometer for foreign investments in Canada, with some warning of a spillover into other sectors of the economy.
"We don't see this as a symbol of the way to get things done in this country", Morneau told a business audience in Calgary, home to Canada's energy industry.
He said the group was "concerned about the implications of the government's financial intervention for future transmission pipeline projects".
But Perrin Beatty, chief executive of the Canadian Chamber of Commerce, said the government needs to revamp the "badly broken" regulatory system for major energy projects.
However, the British Columbian government said Tuesday it wasn't backing down. Steven J. Kean, the president of Kinder Morgan, called it a "great day for Canada, for our customers and for our employees".
He said it threatens Canada's reputation as a safe place to invest, puts thousands of jobs at risk and holds back Canada's economic growth.
If completed, Trans Mountain would "triple the amount of dirty tar sands being shipped from Alberta to the coast of British Columbia", OCI's Andy Rowell noted in a blog post last week.
Many demonstrators are outraged with people calling the decision to use tax payer money to save the project 'ridiculous, ' reported News 1130.
McLeod said the cost to taxpayers is simply too much, especially given the fact Texas-based oil giant Kinder Morgan was willing to foot the bill.
'We will not stand down no matter who buys this ill-fated and exorbitantly priced pipeline'. This is not a great day for Canada's reputation on the global investment front.
Many activists were arrested for blocking construction on oil transport terminals in British Columbia, including May, the Green Party leader.
Once the sale is finalized, Ottawa plans to take on remaining construction of the addition to the pipeline. "It seems today that with this announcement and the federal government getting involved is they recognize how important natural resource development is for all of Canada - not just for the provinces where the projects are occurring".
Asked about the ongoing opposition, Minister of Indigenous Services Jane Philpott said that Ottawa will ensure it is "fully respectful" of the rights of Indigenous Peoples.
Morneau said the federal government does not plan to be a long-term owner and is in negotiations with interested investors, including Indigenous communities, pension funds and the Alberta government, which will provide funding for any unexpected costs that arise during construction.