M.D.C. HOLDINGS <MDC> SELLS ENERGY UNIT M.D.C. Holdings Inc said it sold substantially all the assets of its oil and gas unit, Mizel Petro Resources Inc, and affiliated partnerships, for 38 mln dlrs in cash to <Parker and Parsley Petroleum Co>, Midland, Texas. The company said that, subject to certain post-closing adjustments, it expects to post a small profit on the sale.