Shelf hits back at ONGC favouritism allegation Vol 20, PW 12 (09 Mar 17) Exploration & Production Shelf Drilling has hit back at claims ONGC is favouring it by extending two rig... Buy this article forRs490 $9 For a 30-article or annual subscription rates click here Next Boston beats E&Y for ONGC consultant contract Back Cairn keeps Weatherford and John guessing... RelatedOil India airborne survey hits IEM roadblock (06 Oct 22) Adani to hire Shelf jack-up after HOEC contract (19 Dec 19) Anti-foreign steel order hits ONGC offshore work (27 Jun 19) ONGC holds unhelpful jack-up pre-bid (01 Nov 18) Geofizyka denies bias in Oil India 3D tender (10 Aug 17) No complaints at 8-rig pre-bid held by ONGC (18 May 17) Shelf hits back at ONGC favouritism allegation (09 Mar 17) Bell Geospace denies Jorhat seismic criticism (26 Jan 17) Shell (BG) and Cairn also hiring jack-up rigs (17 Nov 16) Cairn shortlists 3 for Palar rig (03 Nov 16)