Grant Supply was a distributor of pipe, valves, fittings, and other equipment to oil production companies.
[5] EVI then shifted Grant's operations from distribution to manufacturing focused on drill pipe and premium tubulars.
Around this time it also bought the drill pipe manufacturing operations of Reed Tool Co., also based in Houston.
In November 2002, it bought Casper, Wyoming-based Grey-Mak Pipe from Flint Energy Services[10] and, in December, Houston-based drill bit manufacturer Reed-Hycalog from Schlumberger.
[3] In June 2004, subsidiary ReedHycalog bought the synthetic diamond cutter manufacturing unit of Novatek Corp. for US$21 million[12] and in August Grant Prideco acquired Houston-based drill bit producer Diamond Products International from NQL Drilling Tools for US$17 million.
[14] IntelliServ had been developed by Grant Prideco in cooperation with Novatek Engineering as part of a Department of Energy project in the early 2000s.
[17] At the time, Grant Prideco operated 25 manufacturing sites worldwide and held 60% of the global drill pipe market.