doe eia 0581 2003 the national energy modeling system an overview march information administration office of integrated analysis and forecasting us department washington dc 20585 this report was prepared by independent statistical analytical agency within contained herein should be attributed to not construed as advocating or reflecting any policy position other organization publication is on web at www gov oiaf aeo index html provides a summary description en ergy nems which used generate forecasts production demand im ports prices through year 2025 for annual outlook aeo2003 0383 released in january presents markets five primary cases reference case four additional that assume higher lower economic growth world oil than brief methodology