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    The petroleum drillholes dataset stores information about conventional petroleum wells within NSW. The dataset has been developed to record summary data on petroleum exploration and development drilling for holes drilled in New South Wales. The dataset contains summary information about each drillhole such as location, total depth, azimuth/dip, wireline logs, core availability and library location and DIGS references. This data is part of the New South Wales Geoscientific Data Warehouse (NSW GDW) series.

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    This is the coal subset of the NSW drilling dataset available from Geoscientific Data Warehouse. The drillhole data has been compiled over time from various sources including mineral exploration reports and departmental records.It provides drill collar information for coal drillholes and associated data including classification of drilling purpose, drill type, licencee/driller information, date the hole was drilled, depth of hole drilled and references. This data is part of the New South Wales Geoscientific Data Warehouse (NSW GDW) series.

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    When a title expires or is cancelled, suspended or revoked it becomes ‘inactive’/‘historic’/'dead'. At this time it is moved to the historic titles dataset. This dataset is incomplete and contains only titles that have been digitised. Older titles are stored in hardcopy at the Maitland offices of the NSW Government. Access to these documents is by request only. The DIGS document system often contains copies of older plans.