Preheat your oven to 350°F.
Juice one of the oranges and strain out any seeds.
Whisk in the olive oil.
Cut the other orange into thin slices and remove any seeds.
Arrange the salmon fillets skin side down in a baking dish.
Drizzle half the olive oil–orange juice mixture evenly over the salmon fillets.
Season generously with salt and pepper, and then top each fillet with an orange slice.
Drizzle the remaining olive oil–orange juice mixture over the orange slices.
Bake the salmon, uncovered, for 25 to 30 minutes, or until done to your liking.
Transfer to a platter or plates and garnish with the dill or parsley.