Hi @Nick Riddy,
Please try the following solution.
-- DDL and sample data population, start
DECLARE @tbl TABLE (id INT IDENTITY PRIMARY KEY, ResourceIDXML XML);
INSERT @tbl (ResourceIDXML) VALUES
(N'<ResourceIds>
<ResourceId Type="System.Int32" Value="1129"/>
<ResourceId Type="System.Int32" Value="1131"/>
</ResourceIds>');
-- DDL and sample data population, end
SELECT id
, c.value('.', 'INT') AS ResourceIDXML
FROM @tbl
CROSS APPLY ResourceIDXML.nodes('/ResourceIds/ResourceId/@Value') AS t(c);