To Buy Back Up To 1.4% Of Own Shares Worth 3 Billion Yen
May 15 (Reuters) - Nippon Gas Co Ltd 8174.T: NIPPON GAS CO LTD - TO BUY BACK UP TO 1.4% OF OWN SHARES WORTH 3 BILLION YEN Source text: ID:nTSqo83276 Further company coverage: 8174.T (Reporting by Kiyoshi Takenaka) ((kiyoshi.takenaka@thomsonreuters.com;))