• Organization TypeDevelopment Consulting
  • Staff251-500
  • HeadquartersUnited States
  • Founded1937

Ryder Scott Company, L.P.

Ryder Scott Petroleum Consultants evaluates oil and gas properties and independently certifies petroleum reserves quantities in the U.S. and internationally. Founded in 1937, Ryder Scott is one of the largest, oldest and most respected reservoir-evaluation consulting firms in the industry. Please see company brochure: (viewer friendly) (printer friendly). Ryder Scott offices are in the 1100 Louisiana Building in Houston. Oil & Gas Consulation Services The firm performs several hundred consulting studies a year for a variety of clients. The firm has earned worldwide recognition for reliably predicting the performance of complex oil and gas reservoirs in all major petroleum provinces. With 90 professional petroleum engineers and geoscientists, the firm conducts reserves evaluations, geoscience/geology studies, field development and EOR design, reservoir simulation, economic analysis, management consulting and expert witness testimony. The Houston-based firm has branch offices in Calgary, CA and Denver. Trusted Petroleum Experts For the last 10 years, Ryder Scott has been the most widely used consulting firm for preparing annual petroleum reserves certifications for filers with the U.S. Securities and Exchange Commission, according to research firm John S. Herold. Ryder Scott also serves clients listed on the London, Toronto, Hong Kong, Australian and other stock exchanges. The firm issues reserves certifications considered to be highly reliable by banks and private investment groups. The “green book” report helps mitigate risks in committing capital for acquisitions, exploration, field development, redevelopment, infrastructure and refinancing. Major banking institutions establish reserves-based loan amounts, monitor credit lines and determine guarantees based on report values. The report also serves as a resource in screening and due-diligence reviews of acquisitions, divestitures and mergers. Ryder Scott provides a complete range of professional engineering, geoscientific and economic evaluation services. History Ryder Scott Company Petroleum Engineers began operations in Bradford, PA, in 1937. Formerly an oil producer in the early to mid 1930s, the later venture was the first engineering firm and research laboratory in the world devoted to solving waterflood problems. Harry M. Ryder and David Scott Jr. formed the partnership after being asked for technical assistance by producers who had noticed the success of Ryder Scott-engineered waterfloods in the Bradford field. 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 perforate and stimulate the producing formation. The firm continued to implement the best techniques under total engineering control to slow the production decline in the Bradford area during the 1940s. Ryder Scott used selective plugging in water intakes. The firm recommended improvements in core acquisition, logging, completion practices, injection waters and pressures, well spacing and oilfield equipment. With the Bradford area’s inevitable decline in the 1950s, Ryder Scott moved to Wichita Falls, TX, to design successful secondary recovery projects. In the late 1960s, Ryder Scott acquired Robert W. Harrison & Co., moved to Houston and transitioned from waterflood design to evaluation engineering. Today, Ryder Scott Petroleum Consultants bears little resemblance to the fledgling core-analysis laboratory of the 1930s. However, the firm still retains the principles of its founders — that oil and gas projects be evaluated and engineered to the highest professional and ethical standards.
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Company Offices

  • United States (headquarters)
  • Houston
  • 1100 Louisiana, Suite 4600 Houston, Texas USA
  • Suite 600, 1015 4th St. S.W. Calgary, Alberta, Canada
  • United States
  • Denver
  • 621 Seventeenth Street, Suite 1550 Denver, Colorado, USA