The Baker Hughes North American rig count fell by 11 rigs to 820 in the Sept. 22 week from 831 a week ago and fell 159 from 979 a year ago.

The U.S. rig count is down 11 from last week at 630 and down 134 rigs from 764 last year at this time. The Canadian count is flat from last week at 190 and compared to last year is down 25 rigs. The Gulf of Mexico rig count is flat at 17 in the latest week from last week and up 2 from a year ago.

For the U.S. count, rigs classified as drilling for oil are down 8 at 507, gas rigs are down 3 at 118, and miscellaneous rigs are flat at 5. For the Canadian count, oil rigs are down 4 at 115 and gas rigs are up 4 at 75.

The Baker Hughes North American rig count tracks weekly changes in the number of active operating oil & gas rigs. Used for drilling wellbores for wells that may eventually produce oil or gas, active rigs are essential for the exploration and development of oil and gas fields. Rigs that are not active are not counted. Components in the data are the United States and Canada with a separate count for the Gulf of Mexico (which is a subset of the U.S. total). The count includes only rigs that are significant users of oilfield services and supplies.

Changes in rig counts point to changes in the supply of oil & gas. The higher the rig count, the greater the upward pressure is on oil & gas supply and in turn the greater the downward pressure is on oil & gas prices. The reverse applies when rig counts turn lower, as they did during the oil price collapse of 2014-15 when lower counts contributed to a subsequent decline in domestic oil inventories. Data on the Gulf of Mexico offer indications on production disruptions during the hurricane season (June 1st to November 30th).