Not to overstate the obvious here, but oil pastels do not behave like colored pencils.
Their size and shape should have been enough to clue me into that fact, but I proceeded to use them like a pencil anyways. Punished severely for this ignorance I was.
Made a slight recovery when I began using the tool like I would with oil paint. Globing on specks of color, and letting them mix with each other naturally. They don’t quite have the mixing quality of paint, but with a finger or blending stumps pigment can be pulled about.
Attempting to create form with precise strokes is totally not the way to approach oil pastels.