Preheat the oven to 400°F (200°C).
Peel the potatoes and slice them into thick, uniform wedges.
In a large roasting pan, whisk together the olive oil, chicken stock, lemon juice, minced garlic, oregano, salt, and pepper.
Toss the potatoes in the roasting pan until every wedge is thoroughly coated with the liquid mixture.
Arrange the potatoes in a single layer.
Roast for 45 minutes in the center of the oven.
Turn the potatoes over and roast for an additional 25 to 30 minutes until the liquid has mostly evaporated and the potatoes are fork-tender and caramelized on the edges.
Transfer to a serving dish and pour any remaining pan juices over the top.