Aug 16 (Reuters) - Woodside Petroleum Ltd WPL.AX :
* HY revenues from ordiary activities decreased 3.6 pct to $1,869 million
* Declares interim dividend of 49 cents per share
* HY net profit for the period attributable to members increased 49.1 pct to $507 million
* "The SNE development offshore Senegal is targeting first oil between 2021 and 2023"
* "Woodside is now development lead for SNE oil and plans to transition to operator in due course"