About Surface Wellhead

In August 1927, brothers Arthur and Kirby Pennick of Houston founded Oil Center Tool (O-C-T) to produce pump liners and rods for the oilfields of East Texas, delivering solutions that met their customer’s needs. Ever since then, FMC Technologies has kept its focus on performance and customer satisfaction – solidifying the foundation of our corporate culture. We work together to help you achieve your operation’s objectives, delivering equipment you can count on to perform.

More importantly, you can expect our people to perform, too. FMC Technologies and its predecessor, O-C-T, have a long history of technological innovations – from industry standard C22/29 casing heads to 5K wellhead in the 1930s; the first multiple-completion systems of the 1940s; the Unihead™ thru-bore system; and in subsequent decades, automatic casing hangers, Speedloc™ clamps, subsea technology, and the first TLP/SPAR systems.

Our future lies in performing for our customers, consistently and reliably. From the start of the order through the life of your operation, you can count on FMC Technologies.



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