Heat oil in a large saucepan over medium heat. Add onion, celery, and garlic and cook, stirring occasionally, until tender, about 5 minutes. Carefully stir in 1 cup broth and wine. Bring to a boil. Reduce heat to a simmer and cook for 5 minutes. Stir in drained tomatoes, tomato sauce, oregano, salt and pepper. Return to a boil then reduce heat to a simmer, cover and cook for 5 minutes.