However, the eight-time Bundesliga champions have showed their loyalty to the Germany global, who has scored three goals and assisted two more in seven appearances since returning from his latest setback in February, sparking reported interest from top clubs around Europe.
He has 29 caps for his country but missed the 2014 World Cup, which Germany won, because of injury.
Clubs may have held off approaching the forward due to concerns over his fitness, though Reus has managed a total of 196 appearances for Dortmund since joining in 2012.
"I have worn the Borussia shirt since 2012".
Reus has been rewarded after returning to form following an eight-month absence
"Since childhood I have dreamed of running around in black and yellow and playing for this club".
"The fact that the club have repeatedly helped me in less than ideal times has also had a positive effect on my decision", he said.
He captained the side in his comeback against Hamburg and has since scored in three consecutive games.
"The fact that the club have repeatedly helped me in less than flawless times has also had a positive effect on my decision", he added.
"Dortmund is my home, BVB is my club".More news: The Driehaus Capital Management LLC Sells 21018 Shares of Baidu Inc (BIDU)