1. In a large pot over medium heat, heat the olive oil.
2. Add the onion, garlic, and celery and cook until softened, about 5 minutes.
3. Add the clam juice and diced tomatoes and bring to a boil.
4. Add the potatoes and cook for an additional 5 minutes.
5. Reduce the heat to low and stir in the clams, thyme, oregano, and white wine.
6. Simmer for an additional 10 minutes.
7. Season with salt and pepper, to taste.
8. Serve garnished with fresh parsley.