BISMARCK, N.D. (AP) — North Dakota regulators have scheduled a public hearing on a proposed natural gas processing plant in McKenzie County. The Public Service Commission says Arrow Field Services wants to build a plant to produce a variety of natural gas liquids, including propane and butane. The proposed Arrow Bear Den Gas Processing Plant II project about 7.5 miles southeast of Watford City would cost $136 million.Read more on NewsOK.com