Make-Ahead Gravy

Name: Make-Ahead Gravy
Cuisine: American
Ingredients: 1 Tbsp. vegetable oil; 1 lb. chicken wings; 1 large onion, unpeeled, coarsely chopped; 1 large carrot, peeled, coarsely chopped; 1 celery stalk, coarsely chopped; A small handful of rosemary, thyme, and/or bay leaves; 1 cup dry white wine; 6 cups (or more) Thanksgiving Stock or low-sodium chicken broth; 3 Tbsp. unsalted butter; ¼ cup Wondra or all-purpose flour; ½ tsp. Worcestershire sauce; Kosher salt, freshly ground pepper