ONGC plans UD-1 appraisal after winning DOC Vol 21, PW 22 (09 Aug 18) Exploration & Production ONGC has drawn up tentative plans to drill four appraisal wells following the DGH's... Buy this article forRs590 $9 For a 30-article or annual subscription rates click here RelatedONGC prepares to drill four Saurashtra wells (21 Feb 19) VP Joy wins all-round praise as new DGH chief (09 Aug 18) DGH appraisal delay of two ONGC Kutch blocks (11 Jan 18) ONGC and DGH on 'Cluster 3' collision course (21 Sep 17) DGH approves $12/mmbtu for ONGC discoveries (14 Aug 14) Jubilant re-visits Kathalchari-1 gas discovery (30 Jan 14) Cairn wants faster 'discovery to production' (22 Aug 13) High hopes for Reliance block CY-DWN-2001/2 (30 May 13) ONGC wants Tripura PEL extension for 8 wells (26 Jul 12)