These operations produced approximately 92,000 barrels of oil equivalent per day in 2011.

The operation, which took less than four minutes, produces remarkably little blood.

That operation has been under way for roughly two years, is continuing and could produce more arrests.

The American operation produces 62 percent of its $5.4 billion annual revenues.

From 1911 to 1922, an underground operation produced 320,000 ounces of gold.

That operation produced several drug buys and would lead to arrests, the Chief said.

Since the business became slack and commercial operations had not produced the desired results, it was given up in 1727.

The operation produced no arrests or evidence leading to a criminal prosecution.

Even if it did work, the operation could produce yet another vast stream of refugees.

The operation went in over open ground and produced serious casualties.