With nearly 75 years of rich history working closely with customers both on and off the oil and gas fields, Wellbore Integrity Solutions is committed to continuing this solid legacy foundation as we move forward creating new history. We have the quality products and services in our brands DRILCO, Thomas Tools and TrackMaster, to name a few, that deliver results. Wellbore Integrity Throughout The Life Of The Well.

1946
SERVCO Founded.


1953
DRILCO Oil Tools Inc. Founded.


1961
Thomas Tools Founded as
Premium Drill Pipe
Rental Provider.


1963
SERVCO Merged with
Smith International.
Smith International.


1967
DRILCO Merged with
Smith International.


1971
DRILCO wins Petroleum Engineering award for Hevi-Wate™ Heavy
Wall Drill Pipe.


1974
Opening of the Rankin Rd. Manufacturing Campus,
Houston, TX.


1993
Smith International
acquired
A-Z/Grant.
A-Z/Grant.


1995
TrackMaster™ introduced.
Also awarded special meritorious engineering award for innovation and efficiency for the TrackMaster one-trip window-milling system.
Also awarded special meritorious engineering award for innovation and efficiency for the TrackMaster one-trip window-milling system.


1996
Smith International acquired
Red Baron Fishing.
Red Baron Fishing.


1997
Smith International acquired
Tri-Tech Fishing, and Houston Engineers (HE).
Tri-Tech Fishing, and Houston Engineers (HE).


2002
Thomas Tools added Thomas
Tubing Specialists Inspection
Division.


2008
W-H Energy Services merged with Smith International.


2010
Schlumberger acquired Smith International.


2019
WIS acquires former Smith International businesses DRILCO,
Fishing & Remedial, and Thomas Tools from Schlumberger.


November 2020
Wellbore Integrity Solutions commercializes the ProMILL Duo™, Dual Casing Section Milling System.


December 2020
Wellbore Integrity Solutions and Reactive Downhole Tools Announces Exclusive Licensing Agreement for the CHIMERA Product Line of Wellbore Cleanout Tools.


March 2021
Wellbore Integrity Solutions and Well-Sense Technology UK Ltd Announce Business Cooperation Agreement for the Provision of Fiberline (FLI) Intervention Tools and Services.


May 2021
Introduction of TruEdge*. An innovative, cost-saving cutting technology solution for Well Abandonment and Slot Recovery applications


August 2021
Wellbore Integrity Solutions (WIS) brings back the Red Baron brand name for its Fishing and Remedial product line.
