European Union officials are discussing on Monday revisions to plans unveiled last week for cutting natural gas use by 15% by next spring after several EU member states expressed concerns about the target for reduction, a draft document seen by Bloomberg showed. Last week, the European Commission unveiled measures for the EU to conserve gas in the face of risks of further reduction or a shutoff of Russian gas deliveries, asking member states to reduce gas consumption by 15% until the spring. The Commission proposed a…