Shortage of rigs hits ONGC's NELP drilling plans Vol 7, PW 5 (21 May 03) Exploration & Production BLAME IT on a shortage of drilling rigs: ONGC has not drilled a single well in any of the NELP-I or NELP-II blocks that it has been awarded.... Buy this article forRs590 $9For a 30-article or annual subscription rates click here Data not available in ...