As it stands, the anti-pipeline, anti-fracking, anti-liquefied natural gas Greens hold the balance of power with their three seats, though party leader Andrew Weaver has said he is open to compromise and his top priority is to remove big money from politics.
He will be joined in the house by Adam Olsen, who also took the riding of Saanich North and the Islands for the Greens in Tuesday's provincial election.
Christy Clark has been premier since February 2011 when she won the Liberal leadership race to replace former premier Gordon Campbell. Several ridings were decided by fewer than 300 votes, including Courtenay-Comox, where the NDP won by a mere nine votes.
Horgan said he and Weaver agree that the Liberals have failed British Columbians on many issues.
Absentee ballots are counted at final count, May 22-24.
And if not for local NDP riding in-fighting in Cowichan, Columbia River-Revelstoke and Fraser-Nicola over bitterly contested nominations, likely costing the party three seats, Horgan would be premier-elect now.
"But this is what we do know".
The political commentariate is ruminating over the dozens of "what if?" scenarios following Tuesday's provincial election, which resulted in a hung legislature.
Premier Christy Clark said Wednesday she intends to form a government and is willing to work with others to stay in office.More news: North Korea accuses US, South Korea of assassination attempt
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The Liberals, in power since 2001, were projected to be ahead in 43 districts, and the NDP in 41 - both short of a majority in the province's 87 seats, according to preliminary results tabulated by CBC. Clark said she is confident that when absentee ballots are counted, they will strengthen the Liberals' margin of victory.
"Last night a majority of MLAs were not BC Liberals".
Weaver said he's prepared to negotiate with both the Liberals and NDP to see which has the most in common with the Green platform.
If the result holds and no party gets a majority, Weaver will be in the remarkable position of deciding whether the next government is Liberal or NDP. "They nearly elected me the last time and now look where we are ..."
"The only thing you can guarantee out of this close election is that an urban rural divide now exists in B.C.", said Joseph Angolano, vice-president of Mainstreet Research. Forty-four seats was needed for a majority.
"Honestly, he really does because he doesn't bring people to want to work with him", Weaver said in a Global BC interview. He told voters his party is the only one offering something that's different on climate change and on preparing the province for a new economy spurred by technological change.
When asked whether Kinder Morgan is concerned about the British Columbia election, President Ian Anderson said its pipeline project continues to move forward. The NDP has tabled legislation on six occasions proposing to ban union and corporate donations.
Hitting back at USA plans to implement duties on Canadian softwood lumber, a key export for British Columbia, Clark said the Liberals would add a carbon levy on thermal coal exports from the province that would make them uneconomic.