BUZZ — UK's Helix Exploration gains after regulator clears Rudyard facility restart

* Shares of helium producer Helix Exploration up 10.7% at 30 pence * Montana Board of Oil and Gas Conservation grants approval for immediate restart of operations at the Rudyard facility in Montana * Stock up ~4% YTD (Reporting by Neeshita Beura in Bengaluru) ((Neeshita.Beura@thomsonreuters.com)