BRIEF-Petrochina returns to net profit in Q1

April 27 (Reuters) - Petrochina Co Ltd

* Says Q1 returns to net profit of 5.7 billion yuan

($826.93 million)

Source text in Chinese: http://bit.ly/2pCCRJk

Further company coverage:

($1 = 6.8930 Chinese yuan renminbi)

(Reporting by Hong Kong newsroom)