U.S. energy firms this week cut the number of oil and natural gas rigs operating for a third week in a row to the lowest ...

Used to rotate the drill string during the drilling process, the top drive is a motor that is suspended from the derrick, or mast, of the rig. These power swivels boast at least 1,000 horsepower ...

The number of oil rigs in the US increased by seven in the week ended Friday, according to data compiled by energy services company Baker Hughes (BKR). The count for oil grew to 479 rigs from 472 last ...

U.S. energy firms this week cut the number of oil and natural gas rigs operating for a third week in a row to the lowest ...