When the Kyle City Council settled its lawsuit with Kinder Morgan over the energy giant’s proposed Permian Highway Pipeline, the agreement specifically mentioned that the city would retain the right to pursue future litigation against other entities.

Tuesday night, they exercised that right. After an executive session of approximately 55 minutes, the council voted unanimously to authorize attorney William S. Eubanks to submit a notice of intent to sue to both the U.S. Army Corps of Engineer...