History Timeline

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.

Servco Legacy Logo-01_web
1946
1946
SERVCO Founded.
1946
Servco Legacy Logo-01_web
DRILCO legacy logo_web
1953
1953
DRILCO Oil Tools Inc. Founded.
1953
DRILCO legacy logo_web
Legacy Thomas Tools Logo
1961
1961
Thomas Tools Founded as Premium Drill Pipe Rental Provider.
1961
Legacy Thomas Tools Logo
DRILCO Servco Buttons_web
1963
1963
SERVCO Merged with
Smith International.
1963
DRILCO Servco Buttons_web
Drilco Smith Merger OCT1967 web - Wellbore Integrity
1967
1967
DRILCO Merged with
Smith International.
1967
Drilco Smith Merger OCT1967 web - Wellbore Integrity
DRILCO award web - Wellbore Integrity
1971
1971
DRILCO wins Petroleum Engineering award for Hevi-Wate™ Heavy Wall Drill Pipe.
1971
DRILCO award web - Wellbore Integrity
DRILCO Rankin Facility web - Wellbore Integrity
1974
1974
Opening of the Rankin Rd. Manufacturing Campus,
Houston, TX.
1974
DRILCO Rankin Facility web - Wellbore Integrity
A-Z trackmaster_web
1993
1993
Smith International acquired
A-Z/Grant.
1993
A-Z trackmaster_web
516 N5A4522 4C WIS web - Wellbore Integrity
1994
1994
Thomas Tools merged with
W-H Energy Services.
1994
516 N5A4522 4C WIS web - Wellbore Integrity
TrackMaster-Award_web-1
1995
1995
TrackMaster™ introduced.
Also awarded special meritorious engineering award for innovation and efficiency for the TrackMaster one-trip window-milling system.
1995
TrackMaster-Award_web-1
RED BARON
1996
1996
Smith International acquired
Red Baron Fishing.
1996
RED BARON
TrackMaster Select Vintage2 web - Wellbore Integrity
1997
1997
Smith International acquired
Tri-Tech Fishing, and Houston Engineers (HE).
1997
TrackMaster Select Vintage2 web - Wellbore Integrity
MG 3775 web - Wellbore Integrity
2002
2002
Thomas Tools added Thomas Tubing Specialists Inspection Division.
2002
MG 3775 web - Wellbore Integrity
2008 W-H Energy-Smith
2008
2008
W-H Energy Services merged with Smith International.
2008
2008 W-H Energy-Smith
Whipstock RigSite pk edited web - Wellbore Integrity
2010
2010
Schlumberger acquired Smith International.
2010
Whipstock RigSite pk edited web - Wellbore Integrity
ProMILL Cutter 01 00254 WIS GRN2019 web - Wellbore Integrity
2016
2016
Introduction of ProMILL™ for
well abandonment.
2016
ProMILL Cutter 01 00254 WIS GRN2019 web - Wellbore Integrity
DSC 6221 pk web - Wellbore Integrity
2019
2019
WIS acquires former Smith International businesses DRILCO, Fishing & Remedial, and Thomas Tools from Schlumberger.
2019
DSC 6221 pk web - Wellbore Integrity