Preheat oven to 450°F degrees.
Place rice in a 9-by-13-inch casserole.
In a saucepan, combine chicken broth, whiskey, basil and chervil (or thyme).
Bring to a boil and pour over rice.
Cover tightly with foil and bake for 30 minutes, or until rice is tender.
Meanwhile, in a Dutch oven, heat oil over medium heat.
Add leeks, onion and celery.
Cook, stirring occasionally, until tender, about 10 minutes.
Add garlic and cook, stirring, for 1 minute more.
Add spinach and oysters; cook, stirring, until spinach is just wilted, about 3 minutes.
Stir into rice.
Season with salt and pepper.
(Keep warm, covered, in a 250°F oven for up to 1 hour. Or refrigerate for up to 2 days; reheat before serving).