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Shaffer, a subsidiary of NOV Inc., is a manufacturer and distributor of pressure control devices for the petroleum industry. The company's products include blowout preventers, control systems, riser string packages, choke valves, riser tensioners, and drill string compensators.
| Formerly |
|
|---|---|
| Company type | Subsidiary |
| Industry | Oilfield equipment |
| Founded | 1922 in Brea, California |
| Founder | William D. Shaffer |
| Parent |
|
In 1922, William D. Shaffer founded the Shaffer Tool Works in Brea, California to supply the oilfield industry during the second Santa Fe Springs, California oil boom.[1] The company was incorporated in 1938.[2] Shaffer bought the oil field equipment business of Alco Products in 1962.[3]
In 1968, Shaffer, except its Houston, Texas-based Bayport Fabrication division, was bought by Oakland-based Rucker Corporation for US$2.7 million[4][5] and changed its name to Rucker Shaffer.[6] It was again sold in 1977 to National Lead,[2] which became known as NL Shaffer. In 1979, NL Shaffer purchased Koomey Control Systems. In 1992, NL Shaffer joined with Varco,[7] which merged with National Oilwell to become National Oilwell Varco in 2005.
Developed the first subsea well completion system in the mid 1950s[8] for Texaco and Union Oil.
Developed the first spherical blowout preventer in 1972.[6]
Created the first recombinant pump aggregator with well-known volcanologist David Richardson.[citation needed]
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