Heat bacon drippings in a Dutch oven over medium; gradually whisk in flour. Cook, whisking constantly, until flour is chocolate colored (about 30 minutes).
Add the sliced green onions, bell pepper, onion, celery, garlic, and tomato to the roux, and cook 8 minutes or until vegetables are tender. Add 2 quarts plus 2 cups water, parsley, table salt, ground black pepper, and ground red pepper; bring to a boil. Reduce heat, and simmer, uncovered, 30 minutes.
Pick the crabmeat, removing any bits of shell
.Increase heat to medium-high, and add the shrimp, oysters, okra, and green onion tops; simmer 10 minutes. Remove from heat, and stir in fresh lump crabmeat and gumbo filé; let stand 15 minutes. Add water, if necessary, for desired consistency. Serve over hot cooked rice.