"During the year, RIL opted to relinquish two blocks KG-DWN-2003/1 and CY-PR-DWN-2001/3 as part of the ongoing effort to high grade its upstream asset portfolio," the company said in its annual report for 2014-15.
RIL had in February 2011 announced a "transformational" deal when UK's BP picked up 30 per cent stake in its 23 oil and gas blocks. However, in August that year the government allowed them to form a partnership in only 21 blocks.
Since 2012, RIL and BP have been pruning their portfolio, shedding not so viable acreage.  RIL said block KG-DWN-2003/1 is been surrendered because of operational restrictions imposed by the Defence Ministry while CY-PR-DWN-2001/3 "was relinquished as prospectivity was not commensurate with the high geological risk involved".
With BP, it is left with four blocks including KG-D6 and gas discovery areas of NEC-OSN-97/2 (NEC-25) and CY-DWN-2001/2 (CY-D5). It also has western offshore block GS-OSN-2000/1 with Hardy Oil. Besides, RIL holds two coal-bed methane (CBM) blocks in Madhya Pradesh.

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