type subsidiary industry energy predecessor sagasco headquarters adelaide australia area served sa qld nt vic nsw key people ian little md john allpass chairman products natural gas transmission and distribution operating income 292.9 m 2010 11 net income 45m 2010 11 1 parent cheung kong group website www.australiangasnetworks.com.au australian gas networks limited formerly envestra limited is an australian energy company . it operates natural gas transmission and distribution networks throughout australia . envestra was formed when the government of south australia sold sagasco its vertically integrated natural gas monopoly to boral . boral combined sagasco s distribution network with businesses it owned in other states to form envestra which was floated in 1997 . 2 envestra owns and operates distribution systems in a number of towns and metropolitan areas including adelaide brisbane melbourne rockhampton albury alice springs bundaberg and whyalla . envestra also owns transmission pipelines in sa victoria nsw queensland and the northern territory . in 2013 apa group announced an approach to the board of envestra with an all share merger proposal . in 2014 apa announced the sale of its 33.4 % interest in envestra to the cheung kong infrastructure group . apa still retains the operation and management of envestra s assets until 2027 . 3 references edit envestra annual report 2011 pdf . envestra . retrieved 28 july 2012 . south australia s electricity and gas industries pdf . australian energy market commission . retrieved 28 july 2012 . apa group history of apa . archived from the original on november 6 2015 . external links edit official website this article about an australian corporation or company is a stub . you can help wikipedia by expanding it . v t e this article about a company or corporation involved in the energy industry is a stub . you can help wikipedia by expanding it . v t e retrieved from https en.wikipedia.org w index.php title australian gas networks & oldid 712924086 categories companies formerly listed on the australian securities exchangenatural gas companies of australiacheung kong holdingsaustralian company stubsenergy company stubshidden categories official website different in wikidata and wikipediaall stub articles 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 edit links this page was last modified on 31 march 2016 at 21 37 . 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