Baillex undertakes fundamental research of public data from across the offshore oil & gas industry. Production, late-life and decommissioning data and information for offshore fields is often poorly reported and mis-reported. Even viewing multiple data points from a single Governmental regulator can highlight a considerable number of data inconsistencies and inaccuracies which requires data checking with cross-referencing, identification and correction of likely anomalies. This data collation focuses on the verification of standard key data points (field type, production volumes, development type, key dates etc.) and the cross-checking of related infrastructure, activity and techno-economic influences. Without the investment of the necessary time and effort in fundamental research and data collation, the subsequent data assessment process would be notably weaker.