Abstract: Optimal programming is performed to an oilfield on its exploration, development, refinery and chemical engineering, mechanical engi-
neering, public engineering, and poly-economy. Based on the analysis of available data, the critical factors, decisive variables and
objectives are defined and multi-objective planning models established. By means of correlation analysis, gray prediction and regres-
sion analysis, the constraining equations for the models are obtained. With the computing software provided, predictions of the yearly
cost and profit for the individual executive departments as well as the oilfield as a whole can be quickly and conveniently made.

Key words: Gray system, Regression analysis, Correlation analysis, Decision making