PDF version: Estoppel arguments fail once again in an oil and gas lease case
Case considered: Desoto Resources Limited v. Encana Corporation, 2010 ABQB 448
In this case Justice William Tilleman dismissed an appeal from Master Jodi Mason’s decision in chambers in which she had granted summary judgement in favour of the defendant in the action, Encana. Desoto had been seeking a declaration that it had a number of valid leases notwithstanding that the primary term of the leases had expired in the 1970s and that there had been no production on the leases for a period beginning in the late 1990s. This was apparently, at least at the outset, as a result of the properties being shut-in by order of the Energy Resources Conservation Board because of the failure of the then lessee to pay well abandonment deposits.
I blogged on Master Mason’s decision – see Successful application for summary dismissal in an oil and gas lease validity case.
On appeal, Desoto focused on estoppel arguments urging that the leases should survive on the basis of promissory estoppel, estoppel by acquiescence, or estoppel by deed.