The Oregonian has this story about the Independent Party’s primary, which the party is paying for. The Independent Party, with approximately 56,000 registered members, is ballot-qualified. However, the Oregon law does not permit it to have a government-funded primary, because it has registration under 3% of the state total. Yet the party feels it has so many members, nomination by convention (which is the usual method for ballot-qualified small parties in Oregon) is not practical.
So, it has arranged a means for the party to hold its own primary, at its own expense, which the article describes.