BRIEF-Alimentation Couche-Tard announces competition clearance in Canada
* Alimentation Couche-Tard Inc announces competition clearance in Canada of the acquisition of CST Brands, Inc. and the transaction with Parkland
May 18 Savanna Energy Services Corp
* Savanna Energy Services Corp announces executive appointment
* Savanna Energy Services Corp - announces appointment of Lyle Whitmarsh as president of Savanna Source text for Eikon: Further company coverage:
MOSCOW/KIEV/WASHINGTON, June 27 A major global cyber attack on Tuesday disrupted computers at Russia's biggest oil company, Ukrainian banks and multinational firms with a virus similar to the ransomware that last month infected more than 300,000 computers.
* Viking Supply Ships Ab says at AGM Bengt Rem was re-elected as chairman of board and Folke Patriksson was re-elected as deputy chairman