Reliable and Robust Production and Loss Accounting System Yield Accounting and Data Reconciliation (YADR) of Hydrocarbon & Utility systems at Reliance Industries Limited -Nagothane Manufacturing Division (RIL-NMD) is the best practice that is being showcased. The model is developed on Sigmafine® platform and is integrated with Production Accounting System (PAS). Reconciliation of entire Hydrocarbon and Utility quantities for the manufacturing entity with an established system helps in accu