By: Nigel Bankes
PDF Version: Clean-up Liability for Wells in the Mackenzie Delta
Case Commented On: ConocoPhillips Canada Resources Corp and Shell Canada Limited, 2019 ABQB 727 (CanLII)
Gulf, Conoco’s predecessor, undertook exploratory drilling in the Mackenzie Delta in the 1970s including the seven wells referenced in this case, most particularly the I-37 well. The wells had sump pits for the disposal of drilling waste and fluids. In 1973 Gulf obtained approval to suspend the I-37 well and fill the top two thousand feet of casing with diesel fuel. Gulf subsequently abandoned the I-37 well in the mid-1980s, installing a cement plug, but by then the diesel oil (at para 29) “was no longer in place”. “All of the well sites received final clearance under the Territorial Lands Use Regulation, CRC, Vol XVIII, c 1524, p 13645, ss 18, 33(5), 37 in September, 1986. This approval meant that the site had been satisfactorily reclaimed and the regulator was satisfied that the conditions of the land use permit had been met.” (at para 29) Prior to abandonment Gulf had used the data from these wells to procure significant discovery licences (SDL) under the terms of the Canada Petroleum Resources Act, RSC, 1985, c. 36 (2nd Supp) for some of its properties.