Oil producers decline Oil producers, including Royal Dutch Shell (Xetra: R6C1.DE - news ) and BG Group (LSE: BG.L - news ) , headed south as Brent crude hovered just under $49 per barrel, the lowest level since January.
Take context from the input text and decide on the accurate relationship between 'BG Group' and 'Royal Dutch Shell' from the options provided.
Options: parent organization, platform, chairperson, position held