Brief: Eco (Atlantic) Oil & Gas Secures 75% Interest In Block 1 South Africa's Orange Basin
June 4 (Reuters) - Eco (Atlantic) Oil & Gas Ltd EOG.V: ECO (ATLANTIC) OIL & GAS LTD - SECURES 75% INTEREST IN BLOCK 1 - SOUTH AFRICA'S ORANGE BASIN Source text: ID:nRSD3020La Further company coverage: EOG.V ((Reuters.Briefs@thomsonreuters.com))