Maps and GPS directions to BP Wauwatosa and other BP Gas in the United States. Find your nearest BP Gas. In the last 50 years, they've become the largest oil and gas producer and oil spill containment experts in the US. In North America, they are the second-largest refiner and the second-largest fuels marketer. They have modern refineries in Texas City, Carson, Cherry Point, Whiting and Toledo. These five refineries have a total capacity for processing 1.5 million barrels of crude oil a day. A new solar power system in Colorado points the way to a new energy future.