As Judge Means recently noted in Highmark v. Allcare (decision available here), sur-replies are generally not permitted in the Northern District of Texas:
Under the local rules, the movant is generally entitled to have the final word. See N.D. Tex. L. Civ. R. 7.1(e)-(f). Indeed, sur-replies are “highly disfavored” and are permitted only in “exceptional or extraordinary circumstances.” Lacher v. West, 147 F. Supp. 2d 538, 539 (N.D. Tex. 2001) (Lindsay, J.).
Because the plaintiff had not demonstrated that exceptional circumstances existed, its motion for leave to file a sur-reply was denied.