We have undertaken a major update of our published well tops files with the addition of two way times for 424 wells as calculated from available well velocity surveys.

As with all such data, these interpretations are provided for guidance only and may be subject to later re-evaluation and revision.

Source documents for all wells are available from the Well Data Release Agents  who act on behalf of the Oil & Gas Authority.

This January 2017 update incorporates these wells.