美国至5月30日当周总钻井总数 563口，前值566口。

Core Insights - The total number of active drilling rigs in the United States as of the week ending May 30 is 563, a decrease from the previous count of 566 [1] Industry Summary - The current total drilling rig count reflects a slight decline, indicating potential shifts in exploration and production activities within the oil and gas sector [1]