NUMAC OIL <NMC> SEES RESULTS IMPROVING Numac Oil and Gas Ltd said it expects significant improvement in operating performance during 1987. The company today reported 1986 earnings from continuing operations of 5,255,179 dlrs, down from 17.6 mln dlrs a yuear earlier, due to lower prices for crude oil and pipeline capacity constraints. Numac said changes introduced by federal and provincial governments during 1986 should help results.