Ruddy Reveal February 2021 Clue #1

From the Desk of the Chief:

Welcome back, Detective.  I'm sure you've been wondering just what's been going on up at the Onyx Diamond Ski Resort.  Well, you're in luck, because we're about to embark on another month of mysterious adventure.  Below, you'll find the first step of many in finding out what's in the bottle of oil you received and #whodunit in the case we're investigating.  Let's get to it, shall we?