Schlumberger challenges ONGC over Halliburton Vol 20, PW 2 (06 Oct 16) People & Policy Schlumberger has followed up on its threat to challenge Halliburton's victory in an... Buy this article forRs590 $9For a 30-article or annual subscription rates click here RelatedSchlumberger lines up $1bn for Geleki oilfield (21 Feb 19) Halliburton wins 6-month ONGC vessel contract (08 Mar 18) Halliburton moves DD kit for Oil India (11 Jan 18) Halliburton beats Schlumberger for Cairn work (30 Nov 17) Schlumberger drops Halliburton protest (20 Oct 16) Schlumberger challenges ONGC over Halliburton (06 Oct 16) Schlumberger upset with ONGC over Halliburton (22 Sep 16) Sarraf wants to lower ONGC 'fracking' costs (07 May 15) Baker wins $60m LWD contract (28 Nov 13) Angry ONGC terminates Halliburton contract (21 Nov 01)
