ONGC deadline for 600-metre rig Vol 13, PW 24 (20 May 10) News in Brief ONGC is demanding confirmations by Thursday, May 20 (today) in its tender to hire a semi-submersible that can drill in 600-metre water depths for three years from December 2010.... Buy this article forRs590 $9For a 30-article or annual subscription rates click here RelatedONGC again extends 6-onland rig deadline (13 Jul 23) Rig contractors bombard ONGC with queries (15 Jun 23) ONGC extends rig bid deadline (23 Mar 23) ONGC gets 4 offers for 2 land rigs (17 Nov 22) Deep set to win ONGC rig extension in Tripura (19 Sep 19) ONGC wants CBM rig to replace no-show Greka (14 Dec 17) Land rig frustration as ONGC changes mind again (06 Oct 16) ONGC rig tender extension (12 Jul 12) ONGC extends 7500-ft rig deadline (07 Aug 08) November 16 deadline for ONGC to hire Eirik Raude (15 Nov 07)