see noble energy . the neutrality of this article is disputed . relevant discussion may be found on the talk page . please do not remove this message until conditions to do so are met . july 2015 learn how and when to remove this template message noble corporation plc type public company traded as nyse ne industry petroleum industry predecessor noble drilling corporation founded 1985 headquarters london main office in sugar land texas 1 key people david w. williams chairman 2 products offshore drilling revenue us 3.352 billion 2015 2 operating income us 920 million 2015 2 net income us 511 million 2015 2 total assets us 12.891 billion 2015 2 total equity us 7.422 billion 2015 2 number of employees 3 300 2015 2 website www.noblecorp.com noble corporation plc is an offshore drilling contractor based in london united kingdom . it is the corporate successor of noble drilling corporation . contents 1 current operations 2 history 2.1 accidents and incidents 2.1.1 noble discoverer mooring 2012 3 references 4 external links current operations edit the company operates 30 drilling rigs including 16 semisubmersibles and 14 jackups . 3 the company provides quarterly updates on the status of its fleet on its website . 4 in 2015 revenues from shell oil accounted for 49 % of the company s revenues and revenues from freeport mcmoran accounted for 14 % of the company s revenues . 2 history edit in 1985 noble affiliates inc. now noble energy distributed its shares in noble drilling corporation to its shareholders via a corporate spin off and noble affiliates began publicly trading on the nasdaq . 5 in 2002 the company underwent a restructuring whereby it moved its domicile to the cayman islands and established noble corporation as the parent holding company . 6 in early 2009 the company moved its domicile from the cayman islands to switzerland due to the potential for more u.s. taxes on caribbean tax havens . in 2013 the company moved to the united kingdom . 7 in 2010 the company acquired frontier drilling in a 2.16 billion cash transaction . 8 the company was added to the s & p 500 stock market index in 2011 9 but was removed from the index in 2015 . 10 in 2014 the company distributed its interests in paragon offshore plc to its shareholders . 11 accidents and incidents edit noble discoverer mooring 2012 edit in 2012 the noble discoverer drillship operating under contract for royal dutch shell lost its mooring and drifted close to shore . there were no injuries or environmental damage reported as a result of the accident . 12 references edit noble contact a b c d e f g h noble corporation plc 2015 form 10 k annual report noble fleet overview noble fleet status report noble corporation overview noble drilling corporation approves corporate restructuring . pr newswire . january 31 2002 . noble corp changing countries again this time to uk . reuters . july 1 2013 . noble corporation enters into agreement to acquire frontier drilling and strengthens key strategic relationship . pr newswire . june 28 2010 . s & p 500 reshuffling to include noble corp. . forbes . january 12 2011 . retrieved 6 july 2012 . paypal holdings set to join s & p 100 & 500 ; others to join s & p midcap 400 and s & p smallcap 600 . pr newswire . july 14 2015 . paragon offshore completes spin off from noble corporation . prnewswire . august 4 2014 . shell s noble discoverer mishap in alaska fuels concerns . huffington post . july 16 2012 . external links edit switzerland portal houston portal energy portal companies portal noble corporation retrieved from https en.wikipedia.org w index.php title noble corporation & oldid 712367394 categories companies listed on the new york stock exchangedrilling rig operatorscompanies established in 1985corporate inversionshidden categories npov disputes from july 2015all npov disputes 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 norsk bokm l edit links this page was last modified on 28 march 2016 at 18 05 . 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