Olympia Gaming, the Las Vegas-based company seeking a casino in Oxford County, owns the majority of the outfit that got this referenda campaign rolling: Evergreen Mountain Enterprises.

Some nine other partners are minority owners in Evergreen Mountain, which if it earns voter approval, promises to open a $100 million to $150 million resort casino somewhere in Western Maine. Sketches of the “Oxford Highlands” resort were released on Tuesday. The architect described it as “New England charming.”

More than just permission to build, however, the company would, with approval, secure a 10-year monopoly on casino gaming in Maine as well. This exotic facet of this referendum is financial security for any investor.

Yet so far, the faces of Evergreen Mountain have been three people: Seth Carey, who is now one of the minority owners; spokesperson Pat LaMarche, who left the campaign and then came back, and the new guy, Dean Harrold, the casino industry veteran from Nevada who is now the president of the company.

The other investors have remained in shadows. All Harrold and LaMarche will say, to protect their partners’ privacy, is that they had financially supported Carey’s vision from the start, are now minority investors in Olympia’s plans, and they’re all from Maine.

Harrold, during a recent editorial board meeting at the Sun Journal, vouched for these investors credibility by saying there’s no reason to put an “X” next to their names. Too much of this casino campaign, however, has been balanced on the argument of “trust me.” (Well, that’s not fair. All of it, until now, was based on that.)

If passed, Maine voters must trust Olympia Gaming and the Maine Legislature to negotiate significant revisions to the enacting legislation. That the bill is flawed is about the only arena where Olympia Gaming and CasinosNo! agree.

But gaming’s legislative track record in Maine defies the sudden emergence of a trusting relationship. Besides, trust is built and earned, not bestowed or won. Olympia Gaming is trying to wage a two-year campaign in about seven weeks. How can we trust them, if we hardly know them?

A little good faith effort on their part is warranted.

Naming their partners would be a good first step. Maine voters are being asked to drastically change public policy for the benefit of this individual company. We should, at least, know everybody who stands to benefit.

Plus, the casino campaign is quick to malign CasinosNo! about its financial backing in past campaigns. This criticism only rings hollow until their financials are open to equal scrutiny.

Harrold says the partners are nothing to worry about. If so, Olympia Gaming should reveal who they are.

It would be the trusting thing to do.