industry company . for uk based supermarket group see tesco . tesco corporation type public traded as nasdaq teso industry oilfield services founded 1993 calgary canada founder robert tessari headquarters houston texas united states area served global key people fernando r. assing president & ceo revenue us 513.0 million 2011 1 number of employees 2 000 website www.tescocorp.com tesco corporation tesco is an oilfield services company specializing in the design manufacture and service of technology based solutions for the upstream energy industry . its headquarters are located in the spring branch district of houston texas united states . 2 3 contents 1 history 1.1 casing drilling sale 2 business overview 3 see also 4 references 5 external links history edit tesco was created in december 1993 when shelter oil and gas ltd. coexco petroleum inc. and forewest industries ltd. merged as tesco corporation originally tesco drilling technology a joint venture between the three . tesco originally became famous for inventing the first portable land top drive which won a special meritorious award for engineering at the 1994 otc show . 4 since then tesco has branched out into casing running as well including a casing running tool called the casing drive system or cds . 5 in 2006 the company moved their headquarters from calgary ab to houston tx while continuing to manufacture in calgary . 6 casing drilling sale edit on 30 april 2012 tesco and schlumberger announced a deal in which tesco s casing drilling division would be sold to schlumberger for 45 million in cash . 7 business overview edit tesco provides top drive rental services on a day rate basis for land and offshore drilling rigs and after market sales and service for its customers . tesco s top drive rental fleet comprised 132 units on december 31 2011 . in order of size by region from highest to lowest tesco currently has rental units in latin america the united states and canada russia asia pacific europe and the middle east . in response to the economic downturn and operating conditions during 2009 tesco redeployed over 10 % of tesco s u.s. fleet to international locations including the middle east latin america russia and asia . tesco s major competitors in the top drive market include national oilwell varco canrig a subsidiary of nabors and fds . 8 similarly tesco provides conventional and proprietary casing running services . the company operates both conventional equipment and a proprietary casing running tool the casing drive system for rigs equipped with top drives . these technologies were originally developed for casing drilling but were discovered to be useful on their own . 5 in addition several other accessories packages are available . other companies operating in the same sector include national oilwell varco franks international canrig and weatherford international . see also edit houston portal companies portal list of oilfield service companies references edit teso tesco corp financial results aug 6 2012 boundary map . spring branch management district . retrieved on december 8 2009 . contact us . tesco corporation . retrieved on january 23 2010 . tesco s technology earns award . calgary sun may 19 1994 . a b casing drive system . aug 6 2012 2006 annual report for tesco corp aug 6 2012 p. 2 . tesco corp and schlumberger nv enter into definitive agreement on casing drilling division july 7 2012 2011 annual report for tesco corp july 6 2012 external links edit tesco corporation official site retrieved from https en.wikipedia.org w index.php title tesco corporation & oldid 731100598 categories oilfield services companies navigation menu personal tools not logged intalkcontributionscreate accountlog in namespaces article talk variants views read edit view history more search navigation main pagecontentsfeatured contentcurrent eventsrandom articledonate to wikipediawikipedia store interaction helpabout wikipediacommunity portalrecent changescontact page tools what links hererelated changesupload filespecial pagespermanent linkpage informationwikidata itemcite this page print export create a bookdownload as pdfprintable version languages add links this page was last modified on 22 july 2016 at 23 54 . text is available under the creative commons attribution sharealike license ; additional terms may apply . by using this site you agree to the terms of use and privacy policy . wikipedia is a registered trademark of the wikimedia foundation inc. a non profit organization . privacy policy about wikipedia disclaimers contact wikipedia developers cookie statement mobile view