International oil field service company Baker Hughes has freely provided information on drilling rig counts since 1944, and offers historical data on their website. Their rig counts are an important indicator for the health of the drilling industry.
Baker Hughes rig counts are frequently quoted in newspapers, economic discussions, and government reports. Baker Hughes grants the public permission to use the information provided on their Rig Count website provided that the company and the website are cited as sources.
The Baker Hughes website has an interactive global map which highlights each active drilling rig and provides individual rig information. For example, during the 2009-2014 period the number of drilling rigs in the United States tripled as a result of fracking technology and the North Dakota oil boom.