Essar favourite to win CBM rig tender at ONGC Vol 21, PW 22 (09 Aug 18) Exploration & Production With one rig already mobilised, Essar Oilfield Services is believed to be the best... Buy this article forRs590 $9 For a 30-article or annual subscription rates click here RelatedONGC wants CBM rig for Bokaro (22 Oct 20) Essar favourite to win CBM rig tender at ONGC (09 Aug 18) What now for Greka as Essar prepares Bokaro rig (08 Feb 18) ONGC wants CBM rig to replace no-show Greka (14 Dec 17) ONGC extends Bokaro rig tender (17 Nov 16) Interest grows for ONGC Bokaro CBM work (06 Oct 16) ONGC messes up CBM rig tender for Bokaro block (08 Sep 16) Oil India one-well tender attracts 4 bidders (29 Jan 15) Leighton and SEW favourites to win C-Series job (20 Sep 12) Eleven compete for three-rig ONGC contract (12 Jul 07)