The border between two lawsuits

A Dallas and a Midland case both dealt with aspects of the same oil-and-gas exploration project. Predictably, after the litigation proceeded for several years, the issue of whether the Midland litigation mooted the Dallas matter reached the Fifth Court, which reviewed (among other matters) the doctrines of waiver (based on allegedly “unequivocal writings and admissions,” and also drawing on election-of-remedies principles, res judicata, and collateral estoppel. The Court found that the Dallas action could proceed; its opinion illustrates in detail the operation of these important doctrines that police the borders between pieces of litigation (although the related issue of judicial estoppel does not appear to have been in play). TRO-X LP v. Eagle Oil & Gas Co., No. 05-17-00052-CV (Aug. 31, 2018).