Health care prices are higher in Wyoming than elsewhere. But no one is sure exactly why.

CASPER — Attempt to diagnose the reason for high health prices in Wyoming and you’ll find no shortage of supposed causes.

There are the insurance companies — which one Casper doctor called a “bloated sucking worm,” but other officials said lacked the power here to dictate pricing, and one insurer said are critical to delivering care to Wyomingites.

There are the hospitals, which a legislative comm...