CNOOC Petroleum North America ULC 0313535

CNOOC 09P04 REDRILL NEWBY 12-36-85-7

12/12-36-085-07W4/3

Aug 18, 2004 → Aug 19, 2022

CNOOC Petroleum North America ULC 0313535

NEXEN OPTI 09P04 NEWBY 10-36-85-7

06/10-36-085-07W4/0

Aug 18, 2004 → Oct 1, 2012

CNOOC Petroleum North America ULC 0313535

NEXEN CNOOC 09P04 NEWBY 10-36-85-7

06/10-36-085-07W4/2

Aug 18, 2004 → Jul 24, 2012