Baker Hughes has issued the rotary rig counts as a service to the petroleum industry since 1944, when Hughes Tool Company began weekly counts of U.S. and Canadian drilling activity. Hughes initiated the monthly international rig count in 1975. The North American rig count is
released weekly at noon central time on the last day of the work week. The international rig count is released on the fifth working day of each month.
The Baker Hughes Rig Counts are an important business barometer for the drilling industry and its suppliers. When drilling rigs are active they consume products and services produced by the oil service industry. The active rig count acts as a leading indicator of demand for products used in drilling, completing, producing and processing hydrocarbons.
Baker Hughes Rig Counts are published by major newspapers and trade publications, are referred to frequently by journalists, economists, security analysts and government officials, and are included in many industry statistical reports. Because they have been compiled consistently for 70 years, Baker Hughes Rig Counts also are useful in historical analysis of the industry.
Source:
https://bakerhughesrigcount.gcs-web.com//phoenix.zhtml?c=79687&p=irol-rigcountsoverview