In Houston Refining, LP v. United Steel Workers, an arbitrator found that the suspension of a company’s 401(k) plan, after its bankruptcy filing, violated the company’s CBA with a union. No. 13-20384 (Aug. 25, 2014). Two judges agreed that the parties had not “clearly and unmistakably” allowed the arbitrator to decide arbitrability, noting this provision of the parties agreement: “At arbitration, the parties shall reserve all rights to present any and all arguments and advance any and all defenses to them including, without limitation, arguments concerning whether or not an applicable collective bargaining agreement was in effect at the time that a particular grievance arose.” A dissent stressed other provisions of the agreement and the limited scope of review in the CBA context. All three judges agreed that the court had subject matter jurisdiction, but differed on the rationales, in the specific context of an alleged breach of a contract controlled by federal labor law.