Preheat oven broiler to high, and prep the top rack of your oven so it's 8" from the bottom of the broiler. Option to line a baking sheet with foil for easier clean up.
Place salmon on baking sheet and brush with oil, then sprinkle with salt and pepper. Bake in preheated oven until the salmon is almost cooked through--this will depend on how thick your salmon is but usually between 7-9 minutes. I typically pull my salmon a little before it is cooked through fully, and allow it to come to temp as it rests on the counter.
Meanwhile, make the chimichurri sauce by combining all chimichurri ingredients together. I prefer to chop everything by hand, as you definitely don't want to get the herbs too small in the food processor.
Spoon sauce over salmon before serving, and enjoy!