美国8月1日当周总钻井数 540，前值 542。

Core Insights - The total number of active drilling rigs in the U.S. for the week ending August 1 is reported at 540, a slight decrease from the previous week's count of 542 [1] Industry Summary - The current drilling rig count indicates a minor decline in activity, which may reflect broader trends in the oil and gas sector [1]