The United States is the world's largest producer of petroleum.
Alberta produces the most petroleum in Canada, with the majority of production coming from the Athabasca Oil Sands in northern Alberta.
Ecqador
Many countries produce petroleum, but Saudi Arabia produces the most.
Alberta produces the most petroleum in Canada. The province is home to the Athabasca oil sands, which contain a significant portion of the country's oil reserves.
Alaska
Iowa produces the most pigs
According to available statistics, Washington is the state which produces the most apples.
Hershey, Pennsylvania produces the most chocolate
Arizona produces the most copper in the United States.
The state which produces the most gold in Australia today is Western Australia.
The state that is known for it's lobsters is Maine, so I am guessing that it produces the most lobster. :)