|Industry||Oil and gas consulting|
|Headquarters||1100 Louisiana, Suite 3800 • Houston, Texas 77002-5235|
|Key people||DON P. ROESLE (CEO), JOHN E. HODGIN (President)|
Ryder Scott is a Houston-based oil industry consultant, which like similar companies such as DeGolyer and MacNaughton and Gaffney, Cline & Associates, provides oil and gas reserves evaluation to oil majors and nation states.
The original company was founded by engineers Harry M. Ryder and David Scott Jr. in Bradford, Pennsylvania in 1937. The firm originated several techniques. Donald T. May, the first employee, pioneered chip-coring analysis to provide accurate petrophysical data from a single plug of sand. Ryder, an electrical engineer, developed selective shooting. That well-completion technique focused on selecting correctly sized and placed nitroglycerin shots to fracture and stimulate the producing formation.
With the Bradford area’s inevitable decline in the 1950s, Ryder Scott moved to Wichita Falls, TX, to design secondary recovery projects. In the 1960s, Ryder Scott acquired Robert W. Harrison & Co., moved to Houston and transitioned from waterflood design to evaluation engineering.
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