the relationship between well performance and treatment pressures was studied by floyd farris of stanolind oil and gas corporation. this study was the basis of the first hydraulic fracturing experiment, conducted in 1947 at the hugoton gas field in grant county of southwestern kansas by stanolind. for the well treatment, of gelled gasoline (essentially napalm) and sand from the arkansas river was injected into the gas-producing limestone formation at . the experiment was not very successful as deliverability of the well did not change appreciably. the process was further described by j.b. clark of stanolind in his paper published in 1948. a patent on this process was issued in 1949 and exclusive license was granted to the halliburton oil well cementing company. on 17 march 1949, halliburton performed the first two commercial hydraulic fracturing treatments in stephens county, oklahoma, and archer county, texas. since then, hydraulic fracturing has been used to stimulate approximately one million oil and gas wells in various geologic regimes with good success.